KR20220081733A - Apparatus and mehtod of manufacturing the same - Google Patents

Abstract

A device according to an embodiment of the present specification includes a display panel including a pad part for displaying an image, a vibrating device disposed on the rear surface of the display panel and vibrating the display panel, and a vibration signal line part between the pad part and the vibrating device. do.

Description

Apparatus and manufacturing method thereof

The present specification relates to an apparatus and a method for manufacturing the same.

The display device displays an image on the display panel and includes a separate speaker or sound device to provide sound. When a speaker is arranged in a display device, a problem arises in that the design and space arrangement of the display device are limited due to the space occupied by the speaker.

The speaker applied to the display device may be, for example, an actuator including a magnet and a coil. However, when the actuator is applied to a display device, there is a disadvantage in that the thickness is thick. Accordingly, a piezoelectric element capable of implementing a thin thickness is attracting attention.

Since the piezoelectric element is brittle, it is easily damaged due to an external impact, and thus, there is a problem in that the reliability of sound reproduction is low. In addition, when a speaker such as a piezoelectric element is applied to a flexible display device, there is a problem in that damage occurs due to brittle characteristics.

Accordingly, the inventors of the present specification recognized the above-mentioned problems, and conducted various experiments to implement a vibrating device in which sound quality can be improved and sound pressure characteristics can be improved. Through various experiments, a device including a new vibration device capable of improving sound quality and sound pressure characteristics was invented.

An object to be solved according to an embodiment of the present specification is to provide a device capable of generating vibration or sound by vibrating a vibrating object and having improved sound pressure characteristics.

The problems to be solved according to the embodiments of the present specification are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

A device according to an embodiment of the present specification includes a display panel including a pad part for displaying an image, a vibrating device disposed on the rear surface of the display panel and vibrating the display panel, and a vibration signal line part between the pad part and the vibrating device. do.

An apparatus according to an embodiment of the present specification includes a vibrating object including a pad, a vibrating device disposed on the vibrating object, and a vibration signal line unit connected to the pad and applying a signal to the vibrating device.

A method of manufacturing a device according to an embodiment of the present specification includes disposing a vibrating device on a rear surface of a display panel including a pad part, forming a vibration signal line part connecting the pad part and the vibrating device on a rear surface of the display panel, and and connecting the driving circuit unit to the pad unit.

Details of other embodiments are included in the detailed description and drawings.

The device according to the embodiment of the present specification may generate a sound such that the sound travel direction of the device is the front surface of the display panel or the vibrating object by configuring a vibrating device that vibrates the display panel or the vibrating object.

The device according to the embodiment of the present specification may simplify the wiring structure for supplying a signal to the vibrating device by configuring the vibration signal line unit connected to the pad unit.

Effects of the present specification are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

Since the content of the invention described in the problem to be solved above, the means for solving the problem, and the effect do not specify the essential characteristics of the claim, the scope of the claim is not limited by the matters described in the content of the invention.

1 is a diagram illustrating an apparatus according to an embodiment of the present specification.
FIG. 2 is a cross-sectional view taken along line I-I' shown in FIG. 1 .
Fig. 3 is another cross-sectional view taken along the line II' shown in Fig. 1;
4 is a view showing a vibrating device according to an embodiment of the present specification.
FIG. 5 is a cross-sectional view taken along line II-II' shown in FIG. 4 .
6A to 6F are views illustrating a vibration module according to an embodiment of the present specification.
7 is a diagram illustrating an apparatus according to another embodiment of the present specification.
8 is a diagram illustrating an apparatus according to another embodiment of the present specification.
FIG. 9 is another cross-sectional view taken along the line II-II' shown in FIG. 4 .
FIG. 10 is a view showing the vibrating unit shown in FIG. 8 .
11 is a diagram illustrating an apparatus according to another embodiment of the present specification.
12 is a cross-sectional view taken along line III-III' shown in FIG. 11 .
13 is another cross-sectional view taken along line III-III' shown in FIG. 11 .
14 is another cross-sectional view taken along line III-III' shown in FIG. 11 .
FIG. 15 is another cross-sectional view taken along line III-III' shown in FIG. 11 .
16 is a diagram illustrating an apparatus according to another embodiment of the present specification.
17 is a diagram illustrating an apparatus according to another embodiment of the present specification.
18A and 18B are diagrams illustrating an apparatus according to another embodiment of the present specification.
19 is a diagram illustrating an apparatus according to another embodiment of the present specification.
FIG. 20 is a view showing 'A' shown in FIG. 19 .
Fig. 21 is a cross-sectional view taken along line IV-IV' shown in Fig. 20;
22 is a diagram illustrating an apparatus according to another embodiment of the present specification.
23 is a cross-sectional view taken along the line V-V' shown in FIG. 22;
24 is a diagram illustrating an apparatus according to another embodiment of the present specification.
25 is a cross-sectional view taken along the line VI-VI' shown in FIG. 24;
26A to 26E are views illustrating a manufacturing method according to an embodiment of the present specification.

Advantages and features of the present specification, and a method for achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present specification is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the present embodiments allow the disclosure of the present specification to be complete, and common knowledge in the technical field to which this specification belongs It is provided to fully inform those who have the scope of the invention, and the present specification is only defined by the scope of the claims.

The shapes, sizes, proportions, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of the present specification are exemplary, and thus the present specification is not limited to the illustrated matters. Like reference numerals refer to like elements throughout. In addition, in the description of the present specification, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present specification, the detailed description thereof will be omitted. When "includes," "has," "consisting of," etc. mentioned in this specification are used, other parts may be added unless "only" is used. When a component is expressed in the singular, cases including the plural are included unless otherwise explicitly stated.

In interpreting the components, even if there is no explicit description of the error range, it is interpreted as including the error range.

In the case of a description of the positional relationship, for example, when the positional relationship of the two parts is described as "on," "upper," "lower," "nextly", for example, "just" Alternatively, one or more other parts may be placed between two parts unless "directly" is used.

In the case of a description of a temporal relationship, when the temporal precedence is described as “after,” “following,” “after,” “before,” etc., it is not continuous unless “immediately” or “directly” is used. cases may be included.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish one component from another. Accordingly, the first component mentioned below may be the second component within the spirit of the present specification.

In describing the components of the present specification, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are only for distinguishing the elements from other elements, and the essence, order, order, or number of the elements are not limited by the terms. When it is described that a component is “connected,” “coupled,” or “connected” to another component, the component may be directly connected or connected to the other component, but indirectly without specifically expressly stated. It should be understood that other components may be “interposed” between each component that is connected or can be connected.

“At least one” should be understood to include all combinations of one or more of the associated elements. For example, the meaning of “at least one of the first, second, and third components” means not only the first, second, or third components, but also two of the first, second, and third components. It can be said to include a combination of all or more components.

As used herein, the term “device” may include a display device such as a liquid crystal module (LCM) including a display panel and a driving unit for driving the display panel, and an organic light emitting display module (OLED module). And, LCM, a finished product (complete product or final product) including an OLED module, a notebook computer, a television, a computer monitor, a vehicle or an automotive device (automotive apparatus) or other types of vehicle (vehicle) including other types of electric devices (equipment apparatus), a set electronic apparatus, such as a mobile electronic apparatus such as a smart phone or an electronic pad, or a set device (set device or set apparatus) may be included.

Accordingly, the device in the present specification may include a display device itself such as an LCM, an OLED module, etc., and an application product including an LCM, an OLED module, or the like, or a set device that is an end-user device.

In addition, in some embodiments, an LCM or OLED module composed of a display panel and a driving unit may be expressed as a “display device”, and an electronic device as a finished product including the LCM and OLED module may be expressed as a “set device”. . For example, the display device may include a liquid crystal (LCD) or organic light emitting (OLED) display panel, and a source PCB that is a control unit for driving the display panel. The set device may further include a set PCB, which is a set control unit electrically connected to the source PCB to drive the entire set device.

All types of display panels such as a liquid crystal display panel, an organic light emitting diode (OLED) display panel, and an electroluminescent display panel may be used as the display panel used in the embodiment of the present specification. . Examples are not limited thereto. For example, the display panel may be a display panel capable of generating sound by being vibrated by the vibrating device according to the embodiment of the present specification. The display panel applied to the display device according to the embodiment of the present specification is not limited to the shape or size of the display panel.

For example, when the display panel is a liquid crystal display panel, it may include a plurality of gate lines and data lines, and pixels formed at intersections of gate lines and data lines. In addition, an array substrate including a thin film transistor as a switching element for controlling light transmittance in each pixel, an upper substrate including a color filter and/or a black matrix, and the like, and a liquid crystal layer formed between the array substrate and the upper substrate It may be composed of

When the display panel is an organic light emitting (OLED) display panel, it may include a plurality of gate lines and data lines, and pixels formed at intersections of the gate lines and the data lines. In addition, an array substrate including a thin film transistor as a device for selectively applying a voltage to each pixel, an organic light emitting device (OLED) layer on the array substrate, and an encapsulation substrate disposed on the array substrate to cover the organic light emitting device layer Alternatively, it may be configured to include an encapsulation substrate or the like. The encapsulation substrate may protect the thin film transistor and the organic light emitting device layer from external impact, and may prevent penetration of moisture or oxygen into the organic light emitting device layer. In addition, the layer formed on the array substrate may include an inorganic light emitting layer, for example, a nano-sized material layer, a quantum dot light emitting layer, and the like. Another example may include a micro light emitting diode.

The display panel may further include a backing such as a metal plate attached to the display panel. Other structures may be included, for example other structures made of different materials.

Each feature of the various embodiments of the present specification may be partially or wholly combined or combined with each other, technically various interlocking and driving are possible, and each of the embodiments may be implemented independently of each other or may be implemented together in a related relationship. may be

Hereinafter, referring to the embodiments of the present specification through the accompanying drawings and embodiments, as follows. The scales of the components shown in the drawings have different scales from the actual ones for convenience of description, and thus are not limited to the scales shown in the drawings.

In order to provide sound to the display device, if the speaker is implemented in the form of a film, the thickness of the display device can be reduced. Since the film-type vibrating device can be manufactured in a large area, it can be applied to a large-area display device, but has a problem in that it is difficult to apply to a large-area display device due to low vibration due to low piezoelectric properties. When a ceramic is applied to improve the piezoelectric characteristics, there is a problem in that durability is weak and the size of the ceramic is limited. When a vibrating device composed of a piezoelectric composite including a piezoelectric ceramic is applied to a display device, the piezoelectric composite mainly vibrates in the left and right directions based on the horizontal direction, for example, in the left and right directions based on the horizontal direction of the display device. , it is difficult to apply to the display device because the display device cannot sufficiently vibrate in the vertical (or front-back) direction, and a desired sound cannot be output to the front of the display device. When a film-type piezoelectric body is applied to a device, there is a problem in that sound pressure characteristics are low compared to a speaker such as an actuator. When a laminated piezoelectric body in which a plurality of films composed of several layers of a film-type piezoelectric body is laminated is applied to a device to improve sound pressure, power consumption increases and the thickness of the device increases. Further, it was recognized that, although a monophonic sound may be output when a single vibrating device is disposed on the display panel, for example, on the rear surface of the mobile device, it is difficult to output a sound including a stereo sound. Accordingly, in order to realize sound including stereo sound, a vibrator may be further disposed on the edge of the display panel, but it is difficult to arrange an exciter in a flexible device having a curved surface, and a piezoelectric element, for example, a speaker made of piezoelectric ceramics, may be used. When placed, piezoelectric ceramics are prone to breakage.

Accordingly, the inventors of the present specification conducted various experiments in order to implement a vibration device that can implement acoustic characteristics including stereo sound, can be applied to a flexible device, and can vibrate in the vertical direction based on the horizontal direction of the display panel. Through various experiments, acoustic characteristics including stereo sound can be realized, and a device including a vibration device having a new structure that can be applied to devices including flexible devices was invented. This will be described below.

1 is a diagram illustrating an apparatus according to an embodiment of the present specification. FIG. 2 is a cross-sectional view taken along line I-I' shown in FIG. 1 .

1 and 2 , an apparatus according to an embodiment of the present specification may include a display panel 100 for displaying an image and a vibrating device 200 disposed on the rear surface (or rear surface) of the display panel 100 . can

The display panel 100 may display an image, for example, an electronic image or a digital image. For example, the display panel 100 may display an image by outputting light. The display panel 100 may be any type of display panel or curved display panel such as a liquid crystal display panel, an organic light emitting display panel, a quantum dot light emitting display panel, a micro light emitting diode display panel, and an electrophoretic display panel. The display panel 100 may be a flexible display panel. For example, the display panel 100 may be a flexible light emitting display panel, a flexible electrophoretic display panel, a flexible electrowetting display panel, a flexible micro light emitting diode display panel, or a flexible quantum dot light emitting display panel, but is not limited thereto.

The display panel 100 according to the embodiment of the present specification may include a display area AA for displaying an image according to driving of a plurality of pixels. In addition, the display panel 100 may include a non-display area IA surrounding the display area AA, but is not limited thereto.

The display panel 100 according to the embodiment of the present specification includes a top emission method, a bottom emission method, Alternatively, the image may be displayed in a form such as a dual emission method. In the top emission method, visible light generated from the pixel array layer is emitted to the front of the base substrate to display an image, and in the bottom emission method, visible light generated from the pixel array layer is emitted to the rear of the base substrate to display an image. can do.

The display panel 100 according to the exemplary embodiment of the present specification may include a pixel array unit disposed in a pixel area formed by a plurality of gate lines and/or a plurality of data lines. The pixel array unit may include a plurality of pixels that display an image according to signals supplied to signal lines. The signal lines may include, but are not limited to, a gate line, a data line, and a pixel driving power line.

Each of the plurality of pixels may include a pixel circuit layer including a driving thin film transistor provided in the pixel region, an anode electrically connected to the driving thin film transistor, a light emitting element formed on the anode electrode, and a cathode electrode electrically connected to the light emitting element have.

The driving thin film transistor may be configured in a transistor region of each pixel region disposed on the substrate. The driving thin film transistor may include a gate electrode, a gate insulating layer, a semiconductor layer, a source electrode, and a drain electrode. The semiconductor layer of the thin film transistor may include silicon such as a-Si, poly-Si, or low-temperature poly-Si, or an oxide such as IGZO (Indium-Gallium-Zinc-Oxide), but is not limited thereto.

The anode electrode may be provided in an opening region disposed in each pixel region, and may be electrically connected to the driving thin film transistor.

The light emitting device according to the embodiment of the present specification may include a light emitting device layer formed on the anode electrode. The light emitting device layer may be implemented to emit light of the same color, for example, white, for each pixel, or may be implemented to emit light of a different color, for example, red, green, or blue light for each pixel. The cathode electrode (or common electrode) may be commonly connected to the light emitting device layer provided in each pixel area. For example, the light emitting device layer may have a single structure including the same color for each pixel or a stack structure including two or more structures. As another example, the light emitting device layer may have a stack structure including two or more structures including one or more different colors for each pixel. The two or more structures including one or more different colors may consist of one or more of blue, red, yellow-green, and green, or a combination thereof, but is not limited thereto. Examples of combinations may include, but are not limited to, blue and red, red and yellow green, red and green, and red/yellow green/green. And, it can be applied irrespective of the stacking order of these. A stack structure including two or more structures having the same color or one or more different colors may further include a charge generating layer between the two or more structures. The charge generation layer may have a pn junction structure, and may include an N-type charge generation layer and a P-type charge generation layer.

A light emitting device according to another example may include a micro light emitting diode device electrically connected to each of an anode electrode and a cathode electrode. The micro light emitting diode device may be a light emitting diode implemented in the form of an integrated circuit (IC) or a chip. The micro light emitting diode device may include a first terminal electrically connected to the anode electrode and a second terminal electrically connected to the cathode electrode. The cathode electrode may be commonly connected to the second terminal of the light emitting diode device provided in each pixel area.

The encapsulation part is formed on the substrate to surround the pixel array part, and may prevent oxygen or moisture from penetrating into the light emitting device of the pixel array part. The encapsulation unit according to the embodiment of the present specification may be formed in a multi-layer structure in which organic material layers and inorganic material layers are alternately stacked, but is not limited thereto. The inorganic material layer may block oxygen or moisture from penetrating into the light emitting device of the pixel array unit. The organic material layer may be formed to have a relatively thicker thickness than the inorganic material layer to cover particles that may be generated during the manufacturing process, but is not limited thereto. For example, the encapsulation unit may include a first inorganic layer, an organic layer on the first inorganic layer, and a second inorganic layer on the organic layer. The organic layer may be a foreign material cover layer, and the term is not limited thereto. The touch panel may be disposed on the encapsulation unit or may be disposed on the rear surface of the pixel array unit.

The display panel 100 according to the embodiment of the present specification may include a first substrate, a second substrate, and a liquid crystal layer. The first substrate may be an upper substrate or a thin film transistor array substrate. For example, the first substrate may include a pixel array (or a display unit or a display area) having a plurality of pixels formed in a pixel area intersected by a plurality of gate lines and/or a plurality of data lines. Each of the plurality of pixels may include a thin film transistor connected to a gate line and/or a data line, a pixel electrode connected to the thin film transistor, and a common electrode formed adjacent to the pixel electrode and supplied with a common voltage.

The first substrate may further include a pad part provided on the first edge (or the non-display part) and a gate driving circuit provided on the second edge (or the second non-display part).

The pad unit may supply a signal supplied from the outside to the pixel array and/or the gate driving circuit. For example, the pad unit may include a plurality of data pads connected to a plurality of data lines through a plurality of data link lines and/or a plurality of gate input pads connected to a gate driving circuit through a gate control signal line. For example, the size of the first substrate may be larger than that of the second substrate, but is not limited thereto.

The gate driving circuit may be embedded (or integrated) on the second edge of the first substrate to be connected to the plurality of gate lines. For example, the gate driving circuit may be implemented as a shift resistor including a transistor formed by the same process as a thin film transistor provided in the pixel region. The gate driving circuit according to another example may not be embedded in the upper substrate but may be included in the panel driving circuit in the form of an integrated circuit.

The second substrate may be a lower substrate or a color filter array substrate. For example, the second substrate may include a pixel that may include an opening region overlapping the pixel region formed on the first substrate, and a color filter layer formed in the opening region. The second substrate may have a size smaller than that of the first substrate, but is not limited thereto. For example, the second substrate may overlap a portion other than the first edge of the first substrate. The second substrate may be bonded to the remaining portions except for the first edge of the first substrate with the liquid crystal layer interposed therebetween by a sealant.

The liquid crystal layer may be disposed between the first substrate and the second substrate. The liquid crystal layer may be formed of a liquid crystal in which an arrangement direction of liquid crystal molecules is changed according to an electric field formed by a data voltage and a common voltage applied to the pixel electrode for each pixel.

The second polarizing member may be attached to the lower surface of the second substrate to polarize light incident from the backlight and traveling to the liquid crystal layer. The first polarizing member may be attached to the upper surface of the first substrate to polarize light emitted to the outside through the first substrate.

The display panel 100 according to the embodiment of the present specification displays an image according to the light passing through the liquid crystal layer by driving the liquid crystal layer according to the electric field formed for each pixel by the data voltage and the common voltage applied to each pixel. can

In the display panel 100 according to another exemplary embodiment of the present specification, a first substrate may be formed of a color filter array substrate, and a second substrate may be formed of a thin film transistor array substrate. For example, the display panel 100 according to another embodiment of the present specification may have a shape in which the display panel 100 according to the embodiment of the present specification is vertically inverted. In this case, the pad part of the display panel 100 according to another embodiment of the present specification may be covered by a separate mechanism.

The display panel 100 according to another exemplary embodiment of the present specification may include a bent part bent or bent to have a curved shape or a constant radius of curvature.

The bending portion of the display panel 100 may be implemented on at least one of a side edge portion and an edge portion of the other side parallel to each other in the display panel 100 . One edge and/or the other edge of the display panel 100 implementing the bending part may include only the non-display area IA, or the edge of the display area AA and the non-display area IA. The display panel 100 including the bending part implemented by bending the non-display area IA may have a one-sided bezel bending structure or a two-side bezel bending structure. In addition, the display panel 100 including the bending part implemented by bending the edge of the display area AA and the non-display area IA may have one side active bending structure or both side active bending structures.

The vibrator 200 may vibrate the display panel 100 . For example, the vibrator 200 may be implemented on the rear surface of the display panel 100 to directly vibrate the display panel 100 . For example, the vibrating device 200 may provide acoustic and/or haptic feedback to the user based on the vibration of the display panel 100 by vibrating the display panel 100 from the rear surface of the display panel 100 .

According to an embodiment of the present specification, the vibrating device 200 may vibrate the display panel 100 by vibrating according to a vibration driving signal synchronized with an image displayed on the display panel 100 . As another example, the vibrating device 200 may provide a haptic feedback signal (or tactile feedback) that is synchronized with a user's touch on the touch panel (or touch sensor layer) disposed on the display panel 100 or built into the display panel 100 . signal) to vibrate the display panel 100 . Accordingly, the display panel 100 may vibrate according to the vibration of the vibrating device 200 to provide at least one of acoustic and haptic feedback to a user (or a viewer).

The vibration device 200 according to the embodiment of the present specification may be implemented in a size corresponding to the display area AA of the display panel 100 . The size of the vibrator 200 may be 0.9 to 1.1 times the size of the display area AA, but is not limited thereto. For example, the size of the vibrator 200 may be the same as or smaller than the size of the display area AA. For example, since the size of the vibrator 200 may be the same as or substantially the same as that of the display area AA of the display panel 100 , it may cover most of the area of the display panel 100 . In addition, since the vibration generated by the vibrating device 200 may vibrate the entire area of the display panel 100 , a sense of localization of the sound may be high and user satisfaction may be improved. In addition, since the contact area (or panel coverage) between the display panel 100 and the vibrating device 200 increases, the vibration area of the display panel 100 may increase, so that the vibration of the display panel 100 is not affected. Accordingly, the mid-low range sound generated may be improved. In addition, since the vibrating device 200 applied to a large device can vibrate the entire large (or large area) display panel 100 , the localization of the sound according to the vibration of the display panel 100 is further improved, resulting in improved sound effect can be realized. Therefore, the vibrating device 200 according to the present specification is disposed on the rear side of the display panel 100 to sufficiently vibrate the display panel 100 in the vertical (or front-back) direction, so that a desired sound can be output to the front of the device. can

The vibration device 200 may include a vibration generator 210 disposed on or connected to the rear surface (or rear surface) of the display panel 100 . The vibration device 200 according to the embodiment of the present specification may be implemented in the form of a film. Since the vibrating device 200 is implemented in the form of a film, it may have a thickness thinner than that of the display panel 100 , so that an increase in the thickness of the device due to the arrangement of the vibrating device 200 may be minimized. For example, the vibrating device 200 may include a sound generating module using the display panel 100 as a sound diaphragm, a sound generating device, a film actuator, a film-type piezoelectric composite actuator, a film speaker, a film-type piezoelectric speaker, or a film-type piezoelectric speaker. It may be expressed as a composite speaker, etc., and is not limited to terms. As another example, the vibrator 200 is not disposed on the rear surface of the display panel 100 and may be applied to a non-display panel other than the display panel. For example, it may be applied to wood, plastic, glass, cloth, interior materials of automobiles, ceilings, aircraft, and the like, but is not limited thereto. In this case, the non-display panel may be applied as a diaphragm, and a sound may be output by vibrating the non-display panel.

For example, the device according to the present specification may include a vibrating object and a vibrating device 200 disposed on the vibrating object. For example, the vibrating object may include a display panel having a plurality of pixels displaying an image or a non-display panel. For example, the vibrating object includes a display panel having a plurality of pixels for displaying an image, or includes wood, plastic, glass, cloth, interior materials of automobiles, glass windows of automobiles, interior ceilings of buildings, glass windows of buildings, interior materials of buildings, It may be one or more of the interior material of the aircraft, the windshield of the aircraft, etc., but is not limited thereto. For example, the non-display panel may be a light emitting diode lighting panel (or device), an organic light emitting lighting panel (or device), or an inorganic light emitting lighting panel (or device), but is not limited thereto. For example, the vibrating object may include a display panel having a plurality of pixels for displaying an image, or at least one of a light emitting diode lighting panel (or device), an organic light emitting lighting panel (or device), or an inorganic light emitting lighting panel (or device) may be, but is not limited thereto.

According to another example, the vibrating object may include a plate, and the plate may include a metal material or a single non-metal or composite non-metal material of any one or more of wood, plastic, glass, cloth, and leather, limited thereto. it is not going to be

The vibrator 200 may be disposed on the rear surface of the display panel 100 to overlap the display area of the display panel 100 . For example, the vibrator 200 may overlap a display area of at least half of the display area of the display panel 100 . As another example, the vibrator 200 may overlap the entire display area of the display panel 100 .

When an AC voltage is applied, the vibrating device 200 according to the embodiment of the present specification may vibrate by alternately repeating contraction and expansion due to a reverse piezoelectric effect, and may vibrate the display panel 100 through vibration. can For example, the vibrator 200 may vibrate the display panel 100 by vibrating according to a voice signal synchronized with an image displayed on the display panel 100 . As another example, the vibrating device 200 may provide a haptic feedback signal (or tactile feedback) that is synchronized with a user's touch on the touch panel (or touch sensor layer) disposed on the display panel 100 or built into the display panel 100 . signal) to vibrate the display panel 100 . Accordingly, the display panel 100 may vibrate according to the vibration of the vibrating device 200 to provide at least one of sound and haptic feedback to a user (or a viewer).

Accordingly, the device according to the embodiment of the present specification may output a sound generated by the vibration of the display panel 100 according to the vibration of the vibration device 200 to the front of the display panel 100 . And, in the device according to the embodiment of the present specification, since most regions of the display panel 100 may vibrate by the film-type vibrating device 200 , the sound pressure characteristics and sound according to the vibration of the display panel 100 . A sense of orientation may be further improved.

The device according to the embodiment of the present specification may further include a connecting member 150 (or a first connecting member) between the display panel 100 and the vibrating device 200 .

For example, the connection member 150 may be disposed between the rear surface of the display panel 100 and the vibrating device 200 to connect or couple the vibrating device 200 to the rear surface of the display panel 100 . For example, the vibrating device 200 may be supported or disposed on the rear surface of the display panel 100 by being connected or coupled to the rear surface of the display panel 100 via the connecting member 150 . For example, the vibration generator 210 may be disposed on the rear surface of the display panel 100 via the connection member 150 .

The connecting member 150 according to the embodiment of the present specification may be made of a material including an adhesive layer having excellent adhesion or adhesion to the rear surface of the display panel 100 and the vibrating device 200 , respectively. For example, the connecting member 150 may include a foam pad, a double-sided tape, or an adhesive, but is not limited thereto. For example, the adhesive layer of the connecting member 150 may include, but is not limited to, epoxy, acryl, silicone, or urethane. For example, the adhesive layer of the connecting member 150 may include an acryl-based material (or material) having relatively excellent adhesive strength and high hardness among acrylic and urethane. Accordingly, the vibration of the vibrating device 200 may be well transmitted to the display panel 100 .

The adhesive layer of the connecting member 150 may further include an additive such as a tackifier, a wax component, or an antioxidant, but is not limited thereto. The additive may prevent the connecting member 150 from falling off (or peeling off) from the display panel 100 due to the vibration of the vibrating device 200 . For example, the tackifier may be a rosin derivative, etc., the wax component may be paraffin wax, etc., and the antioxidant may be a phenolic antioxidant such as thioester, but is not limited thereto. .

The connecting member 150 according to another example may further include a hollow part provided between the display panel 100 and the vibrating device 200 . The hollow portion of the connecting member 150 may provide an air gap between the display panel 100 and the vibrating device 200 . The air gap minimizes the loss of vibration by the connecting member 150 by allowing the sound wave (or sound pressure) according to the vibration of the vibrating device 200 to be concentrated on the display panel 100 without being dispersed by the connecting member 150 . The sound pressure characteristic of the sound generated according to the vibration of the display panel 100 may be increased.

The device according to the embodiment of the present specification may further include a support member 300 disposed on the rear surface of the display panel 100 .

The support member 300 may cover the rear surface of the display panel 100 . For example, the support member 300 may cover the entire rear surface of the display panel 100 with the gap space GS interposed therebetween. For example, the support member 300 may include at least one of a glass material, a metal material, and a plastic material. For example, the support member 300 may be a rear structure or a set structure. The support member 300 includes a cover bottom, a plate bottom, a back cover, a base frame, a metal frame, a metal chassis, and a chassis base. (Chassis Base), or may be expressed in other terms such as m-chassis. For example, the support member 300 may be implemented as any type of frame or plate-like structure disposed on the rear surface of the display panel 100 .

The edge or sharp corner of the support member 300 may have a slope shape or a curved shape by a chamfering process or a corner rounding process. For example, the support member 300 made of glass may be made of sapphire glass. As another example, the metal support member 300 may be made of at least one of aluminum, an aluminum alloy, a magnesium alloy, and an alloy of iron and nickel.

The support member 300 according to the embodiment of the present specification may include a first support member 310 and a second support member 330 .

The first support member 310 may be disposed between the rear surface of the display panel 100 and the second support member 330 . For example, the first support member 310 may be disposed between a rear edge of the display panel 100 and a front edge of the second support member 330 . The first support member 310 may support at least one of an edge portion of the display panel 100 and an edge portion of the second support member 330 . As another example, the first support member 310 may cover the rear surface of the display panel 100 . For example, the first support member 310 may cover the entire rear surface of the display panel 100 . For example, the first support member 310 may be a member covering the entire rear surface of the display panel 100 . For example, the first support member 310 may include at least one of a glass material, a metal material, and a plastic material. For example, the first support member 310 may be an inner plate, and the term is not limited thereto. For example, the first support member 310 may be omitted.

The first support member 310 may be spaced apart from the rearmost surface of the display panel 100 or spaced apart from the vibrating device 200 with the gap space GS interposed therebetween. For example, the gap space GS may be expressed as an air gap, a vibration space, an acoustic reverberator, or the like, and is not limited to terms.

The second support member 330 may be disposed on the rear surface of the first support member 310 . The second support member 330 may be a member covering the entire rear surface of the display panel 100 . For example, the second support member 330 may include at least one of a glass material, a metal material, and a plastic material. For example, the second support member 330 may be an outer plate, a rear plate, a back plate, a back cover, or a rear cover, but is not limited thereto. For example, the plurality of holes 301 may be disposed in the second support member 330 .

The support member 300 according to the embodiment of the present specification may further include a connection member 350 (or a second connection member).

The connection member 350 may be disposed between the first support member 310 and the second support member 330 . For example, the first support member 310 and the second support member 330 may be coupled or connected to each other via the connecting member 350 . For example, the connecting member 350 may be an adhesive resin, a double-sided tape, or a double-sided adhesive foam pad, but is not limited thereto. For example, the connection member 350 may have elasticity to absorb shock, but is not limited thereto. For example, the connection member 350 may be disposed in the entire area between the first support member 310 and the second support member 330 . As another example, the connection member 350 may be formed in a mesh structure having an air gap between the first support member 310 and the second support member 330 .

The device according to the embodiment of the present specification may further include a middle frame 400 . The middle frame 400 may be disposed between a rear edge of the display panel 100 and a front edge of the support member 300 . The middle frame 400 may support at least one of an edge portion of the display panel 100 and an edge portion of the support member 300 . The middle frame 400 may surround at least one of the side surfaces of the display panel 100 and the support member 300 . The middle frame 400 may provide a gap space GS between the display panel 100 and the support member 300 . The middle frame 400 may be expressed as a middle cabinet, a middle cover, or a middle chassis, and the term is not limited thereto.

The middle frame 400 according to the embodiment of the present specification may include a first support portion 410 and a second support portion 430 . For example, the first support part 410 may be a support part, and the term is not limited thereto. For example, the second support part 430 may be a side wall part, and the term is not limited thereto.

The first support portion 410 is disposed between the rear edge of the display panel 100 and the front edge of the support member 300 , thereby forming a gap space GS between the display panel 100 and the support member 300 . can be prepared The front surface of the first support portion 410 may be coupled to or connected to the rear edge portion of the display panel 100 via the first connection member 401 . The rear surface of the first support portion 410 may be coupled or connected to the front edge portion of the support member 300 via the second connection member 403 . For example, the first support part 410 may have a single frame structure in a square shape or a frame structure having a plurality of divided bar shapes, but is not limited thereto.

The second support portion 430 may be disposed to be parallel to the thickness direction Z of the device. For example, the second support portion 430 may be vertically coupled to the outer surface of the first support portion 410 so as to be parallel to the thickness direction Z of the device. The second support portion 430 may protect the outer surface of each of the display panel 100 and the support member 300 by enclosing at least one of the outer surface of the display panel 100 and the outer surface of the support member 300 . can The first support part 410 may protrude from the inner surface of the second support part 430 toward the gap space GS between the display panel 100 and the support member 300 .

The device according to the embodiment of the present specification may include a panel connecting member instead of the middle frame 400 .

The panel connecting member is disposed between the rear edge of the display panel 100 and the front edge of the support member 300 to provide a gap space GS between the display panel 100 and the support member 300 . can do. The panel connecting member may be disposed between the rear edge portion of the display panel 100 and the edge portion of the support member 300 to adhere the display panel 100 and the support member 300 . For example, the panel connecting member may be implemented as a double-sided tape, a single-sided tape, or a double-sided adhesive foam pad, but is not limited thereto. For example, the adhesive layer of the panel connecting member may include, but is not limited to, epoxy, acryl, silicone, or urethane. For example, the adhesive layer of the panel connecting member is a urethane-based material (or material) having a relatively softer property than acryl among acrylic and urethane in order to minimize the transmission of vibrations of the display panel 100 to the support member 300 . ) may be included. Accordingly, vibration of the display panel 100 transmitted to the support member 300 may be minimized.

In the device according to the embodiment of the present specification, when the panel connection member is included instead of the middle frame 400 , the support member 300 is bent from one side (or end) of the second support member 330 to support the first support member 300 . The member 310 may include a bending sidewall surrounding at least one of the panel connecting member and the outer surface (or outer wall) of each of the display panel 100 . The bending sidewall according to the embodiment of the present specification may have a single sidewall structure or a Hemming structure. The hamming structure may be a structure in which the ends of any member are bent in a curved shape to overlap each other or to be spaced apart from each other in parallel. For example, in order to improve design aesthetics, the bending sidewall includes a first bending sidewall bent from one side (or an end) of the second support member 330 , and a first bending sidewall from the first bending sidewall and the display panel It may include a second bending sidewall bent between the outer surfaces of (100). The second bending sidewall may come in contact with the inner surface of the first bending sidewall or may be spaced apart from the inner surface of the first bending sidewall to reduce transmission of an external impact in a lateral direction to the outer surface of the display panel 100 . Accordingly, the second bending sidewall may reduce the contact of the outer surface of the display panel 100 with the inner surface of the first bending sidewall or the transmission of an external impact in the lateral direction to the outer surface of the display panel 100 .

For another example, in the device according to the embodiment of the present specification, the middle frame 400 may be omitted. Instead of the middle frame 400, it may be composed of a panel connecting member or an adhesive. As another example, the middle frame 400 may be configured as a partition instead.

The inventors of the present specification conducted various experiments to improve the acoustic characteristics of the low-pitched range because the acoustic properties of the low-pitched range are deteriorated when the vibration device 200 is configured as a film-type vibration device. Through various experiments, a device having a new structure that can improve the acoustic characteristics of the low frequency range was invented. This will be described below.

Fig. 3 is another cross-sectional view taken along the line II' shown in Fig. 1;

It was recognized that the air pressure of the device should be reduced in order to improve the acoustic characteristics of the low frequency range. For example, the sound of the vibrating device may be improved by releasing air pressure inside the device to the outside. Since the vibrator 200 is disposed between the display panel 100 and the support member 300 , a structure capable of discharging air pressure to the outside may be required. In order to discharge the air pressure to the outside to reduce the air pressure of the device, the support member 300 may include a plurality of holes 301 . The plurality of holes 301 of the support member 300 may be disposed in a predetermined area of the support member 300 to reduce air pressure in the gap space GS in the device. For example, the plurality of holes 301 of the support member may expand the low-pitched band by reducing the air pressure in the gap space GS, thereby improving the acoustic characteristics of the low-pitched range. When the hole 301 is not disposed in the support member 300, the air pressure in the gap space GS is increased by a sound wave or sound generated by the vibration of the vibrating device 200, so that the low-pitched sound properties may be degraded. According to the embodiment of the present specification, by configuring the hole 301 in the support member 300, even if a sound wave or sound is generated by the vibration of the vibrating device 200, air can be discharged through the hole 301, The air pressure in the gap space GS may be lowered. As a result, the band of the low-pitched range can be extended, and thus the acoustic characteristics of the low-pitched range can be improved.

For example, the hole 301 may be disposed at a position capable of reducing the air pressure of the gap space GS when a sound wave is generated by vibration of the vibrating device 200 . For example, the shape, number, and size of the holes 301 may be variously set. As shown in FIG. 3 , the holes 301 may be disposed at a predetermined interval in a region corresponding to the vibrating device 200 among regions of the support member 300 . For example, the hole 301 may be disposed along a part of the vibrating device 200 , for example, along an edge of the vibrating device 200 .

Therefore, according to the embodiment of the present specification, by configuring the hole in the support member, it is possible to improve the acoustic characteristics including the low-pitched sound and/or the sound pressure characteristics.

4 is a view showing a vibrating device according to an embodiment of the present specification. FIG. 5 is a cross-sectional view taken along line II-II' shown in FIG. 4 .

2 to 5 , the vibration device 200 according to the embodiment of the present specification may include a vibration generator 210 . For example, the vibration generator 210 may include two or more vibration modules.

The vibration generator 210 according to the embodiment of the present specification is spaced apart from each other along each of the first direction (X) (or horizontal direction) and the second direction (Y) (or vertical direction) intersecting the first direction (X) It may include a plurality of vibration modules (210A, 210B, 210C, 210D) electrically separated while being disposed. Each of the plurality of vibration modules 210A, 210B, 210C, and 210D may vibrate by alternately repeating contraction and expansion due to a piezoelectric effect (or piezoelectric characteristic). The vibration generator 210 according to the exemplary embodiment of the present specification may directly vibrate the display panel 100 by vibrating in the thickness direction Z by alternately repeating contraction and expansion due to the reverse piezoelectric effect. The vibration generator 210 may include a plurality of vibration modules 210A, 210B, 210C, and 210D arranged or tiled at regular intervals. The vibration generator 210 may be a vibration array, a vibration array unit, a vibration module array unit, a vibration array structure, a tiling vibration array, a tiling array module, or a tiling vibration film, but is not limited thereto.

Each of the plurality of vibration modules 210A, 210B, 210C, and 210D according to the embodiment of the present specification may have a rectangular shape or a square shape, but is not limited thereto. For example, each of the plurality of vibration modules 210A, 210B, 210C, and 210D may have a rectangular shape having a width of 5 cm or more. For example, each of the plurality of vibration modules 210A, 210B, 210C, and 210D may have a square shape having a size of 5 cmХ5 cm or more.

Each of the plurality of vibration modules 210A, 210B, 210C, and 210D is arranged or tiled in an iХj shape on the same plane, so that the vibration generator 210 is a plurality of vibration modules 210A, 210B, 210C having a relatively small size. , 210D) can be made large by tiling. For example, i is a natural number of 2 or more as the number of vibration modules arranged along the first direction (X), and j is the number of vibration modules arranged along the second direction (Y), which is equal to or different from 1 or more It may be a natural number.

Each of the plurality of vibration modules 210A, 210B, 210C, and 210D may be implemented as a single vibration device (or a single vibration device) that is not driven independently by being arranged or tiled at regular intervals but driven in a complete single unit form have. According to an embodiment of the present specification, based on the first direction X, the first separation distance D1 between the plurality of vibration modules 210A, 210B, 210C, and 210D may be 0.1 mm or more and less than 3 cm. In addition, based on the second direction Y, the second separation distance D2 between the plurality of vibration modules 210A, 210B, 210C, and 210D may be 0.1 mm or more and less than 3 cm. For example, the first separation distance D1 and the second separation distance D2 may be equal to each other. For example, the first separation distance D1 and the second separation distance D2 may be equal to each other within a process error range.

According to the embodiment of the present specification, each of the plurality of vibration modules (210A, 210B, 210C, 210D) is arranged to have a separation distance (or spacing) (D1, D2) of 0.1 mm or more and less than 3 cm, or tiled to form one It can be driven by a vibrator. Accordingly, the reproduction band of the sound generated in association with the single vibration of the plurality of vibration modules 210A, 210B, 210C, and 210D and the sound pressure characteristic of the sound may be increased. For example, a plurality of vibration modules (210A, 210B, 210C, 210D) increases the reproduction band of the sound generated in conjunction with the vibration, low-pitched sound, for example, increase the sound pressure characteristics in less than 500Hz In order to do this, the plurality of vibration modules 210A, 210B, 210C, and 210D may be arranged at intervals of 0.1 mm or more and less than 5 mm.

According to the embodiment of the present specification, when the plurality of vibration modules (210A, 210B, 210C, 210D) are disposed without the spacing (D1, D2) or spacing (D1, D2) less than 0.1 mm, the vibration modules (210A) , 210B, 210C, 210D) The reliability of the vibration modules 210A, 210B, 210C, 210D or the vibration generator 210 may be reduced due to the occurrence or breakage of cracks due to physical contact with each other during each vibration. .

According to the embodiment of the present specification, when the plurality of vibration modules (210A, 210B, 210C, 210D) are disposed at intervals of 3 cm or more (D1, D2), the plurality of vibration modules (210A, 210B, 210C, 210D) Due to each independent vibration, the plurality of vibration modules 210A, 210B, 210C, and 210D may not be driven as one vibration device. Accordingly, the reproduction band of the sound generated in association with the vibration of the plurality of vibration modules 210A, 210B, 210C, and 210D and the sound pressure characteristic of the sound may be reduced. For example, when the plurality of vibration modules 210A, 210B, 210C, and 210D are disposed at intervals D1 and D2 of 3 cm or more, the acoustic characteristics and the sound pressure characteristics in the low range, for example, 500 Hz or less, respectively can be lowered

According to the embodiment of the present specification, when the plurality of vibration modules (210A, 210B, 210C, 210D) are arranged at an interval of 5 mm, each of the plurality of vibration modules (210A, 210B, 210C, 210D) is one vibration Since it is not driven by the device, acoustic characteristics and sound pressure characteristics may be respectively degraded in a low-pitched range, for example, 200 Hz or less.

According to another embodiment of the present specification, when the plurality of vibration modules (210A, 210B, 210C, 210D) are arranged at an interval of 1 mm, the plurality of vibration modules (210A, 210B, 210C, 210D) is one vibration As the device vibrates, a sound reproduction band may be increased, and a sound pressure characteristic of a low-pitched sound, for example, 500 Hz or less, may be increased. For example, when the plurality of vibration modules (210A, 210B, 210C, 210D) are disposed at an interval of 1 mm, the vibration generator 210 is spaced between the plurality of vibration modules (210A, 210B, 210C, 210D) Since the distance can be optimized, it can be implemented as a vibrating body of a large area. Thereby, since the plurality of vibration modules 210A, 210B, 210C, and 210D can be driven with a large-area vibrating body according to the single vibration of the vibration generator 210 , the reproduction band of the sound generated in association with the large-area vibration of the vibration generator 210 . Each of the acoustic characteristics and the sound pressure characteristics in the high and low frequencies may be increased or improved.

Accordingly, in order to implement a single vibration (or one vibration device) of the plurality of vibration modules 210A, 210B, 210C, and 210D, the separation distance between the plurality of vibration modules 210A, 210B, 210C, and 210D is 0.1 It can be set to mm or more and less than 3 cm. In addition, in order to increase the sound pressure characteristics of the low-pitched sound while implementing a single vibration (or one vibration device) of the plurality of vibration modules 210A, 210B, 210C, and 210D, the plurality of vibration modules 210A, 210B, The separation distance between 210C and 210D) may be set to 0.1 mm or more and less than 5 mm.

The vibration generator 210 according to the embodiment of the present specification may include first to fourth vibration modules 210A, 210B, 210C, and 210D. For example, the first to fourth vibration modules 210A, 210B, 210C, and 210D may be electrically separated while being spaced apart from each other in the first direction X and the second direction Y, respectively. For example, the first to fourth vibration modules 210A, 210B, 210C, and 210D may be arranged or tiled in a 2Х2 shape.

According to the embodiment of the present specification, the first and second vibration modules 210A and 210B may be spaced apart from each other in the first direction (X). The third and fourth vibration modules 210C and 210D may be spaced apart from each other in the first direction (X) and spaced apart from each other in the second direction (Y) from the first and second vibration modules (210A, 210B). have. The first and third vibration modules 210A and 210C may face each other and may be spaced apart from each other in the second direction Y. The second and fourth vibration modules 210B and 210D may be spaced apart from each other in the second direction Y while facing each other.

According to the embodiment of the present specification, the first to fourth vibration modules 210A, 210B, 210C, and 210D are driven as one vibration device, vibration as a single unit, or vibration as a vibration body with a large area of the vibration generator 210 For this purpose, it may be arranged (or tiled) at intervals of 0.1 mm or more and less than 3 cm (D1, D2) along each of the first direction (X) and the second direction (Y), or 0.1 mm or more and less than 5 mm (D1, D2) can be placed (or tiled).

Each of the first to fourth vibration modules 210A, 210B, 210C, and 210D according to the embodiment of the present specification may include a vibration unit 211, a first electrode layer E1, and a second electrode layer E2. have.

The vibrating unit 211 may include a piezoelectric material having a piezoelectric effect, a composite piezoelectric material, or an electroactive material. The vibrating unit 211 may be expressed in other terms such as a vibrating layer, a piezoelectric material layer, a piezoelectric composite layer, an electroactive layer, a piezoelectric material part, a piezoelectric composite layer, an electroactive part, a piezoelectric structure, a piezoelectric composite, or a piezoelectric ceramic composite. , but is not limited to the term.

The vibrating unit 211 according to the embodiment of the present specification may be made of a ceramic-based material capable of realizing a relatively high vibration. For example, the vibrating unit 211 may have a 1-3 composite structure or a 2-2 composite structure. For example, the piezoelectric strain coefficient d ₃₃ of the vibrating unit 211 in the thickness direction Z may be 1,000 pC/N or more, but is not limited thereto.

The first electrode layer E1 may be disposed on the first surface (or upper surface) of the vibrating unit 211 and may be electrically connected to the first surface of the vibrating unit 211 . For example, the first electrode layer E1 may have a tubular electrode shape disposed on the entire first surface of the vibrating unit 211 . The first electrode layer E1 according to the embodiment of the present specification may be formed of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the transparent or translucent conductive material may include indium tin oxide (ITO) or indium zinc oxide (IZO), but is not limited thereto. The opaque conductive material may include aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), magnesium (Mg), or the like or an alloy thereof, and is limited thereto. not.

The second electrode layer E2 may be disposed on a second surface (or rear surface) opposite to the first surface of the vibrating unit 211 and may be electrically connected to the second surface of the vibrating unit 211 . For example, the second electrode layer E2 may have a tubular electrode shape disposed on the entire second surface of the vibrating unit 211 . The second electrode layer E2 according to the embodiment of the present specification may be formed of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode layer E2 may be made of the same material as the first electrode layer E1 , but is not limited thereto. As another example, the second electrode layer E2 may be formed of a material different from that of the first electrode layer E1 .

The vibrating unit 211 may be polarized by a constant voltage applied to the first electrode layer E1 and the second electrode layer E2 in a constant temperature atmosphere or a temperature atmosphere changing from high temperature to room temperature, but is not limited thereto.

The vibration generator 210 according to the embodiment of the present specification may further include a first protection member 213 and a second protection member 215 .

The first protection member 213 may be disposed on the first surface of the vibration generator 210 . For example, the first protective member 213 may cover the first electrode layer E1 disposed on the first surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. Accordingly, the first protective member 213 is commonly connected to the first surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D, or each of the plurality of vibration modules 210A, 210B, 210C, 210D The first side of the can be supported in common. Accordingly, the first protection member 213 may protect the first surface or the first electrode layer E1 of each of the plurality of vibration modules 210A, 210B, 210C, and 210D.

The first protective member 213 according to the embodiment of the present specification may be disposed on the first surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D via the first adhesive layer 212 . For example, the first protective member 213 is disposed directly on the first surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D by a film laminating process via the first adhesive layer 212 . can be Accordingly, each of the plurality of vibration modules 210A, 210B, 210C, and 210D may be integrated (or arranged) or tiled to the first protection member 213 to have a predetermined interval D1 and D2.

The second protection member 215 may be disposed on the second surface of the vibration generator 210 . For example, the second protection member 215 may cover the second electrode layer E2 disposed on the second surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. Accordingly, the second protection member 215 is commonly connected to the second surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D or the plurality of vibration modules 210A, 210B, 210C, 210D, respectively. The second surface of the can be supported in common. Accordingly, the second protection member 215 may protect the second surface or the second electrode layer E2 of each of the plurality of vibration modules 210A, 210B, 210C, and 210D.

The second protective member 215 according to the embodiment of the present specification may be disposed on the second surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D via the second adhesive layer 214 . For example, the second protective member 215 is disposed directly on the second surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D by a film laminating process via the second adhesive layer 214 . can be Accordingly, each of the plurality of vibration modules 210A, 210B, 210C, and 210D may be integrated (or arranged) or tiled to the second protection member 215 to have a predetermined interval D1 and D2.

Each of the first protective member 213 and the second protective member 215 according to the exemplary embodiment of the present specification may include a plastic film. For example, each of the first protective member 213 and the second protective member 215 may be a polyimide film or a polyethylene terephthalate film, but is not limited thereto.

The first adhesive layer 212 may be disposed on a first surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D and between the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the first adhesive layer 212 is formed on the rear surface (or inner surface) of the first protection member 213 facing the first surface of the vibration generator 210 to form a plurality of vibration modules 210A, 210B, 210C, 210D) may be disposed on the first surface, respectively, and may be filled between the plurality of vibration modules 210A, 210B, 210C, and 210D.

The second adhesive layer 214 may be disposed between the second surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D and between the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the second adhesive layer 214 is formed on the front surface (or inner surface) of the second protection member 215 facing the second surface of the vibration generator 210, the plurality of vibration modules (210A, 210B, 210C, 210D) may be disposed on the second surface of each and filled between the plurality of vibration modules (210A, 210B, 210C, 210D).

The first adhesive layer 212 and the second adhesive layer 214 may be connected to or coupled to each other between the plurality of vibration modules 210A, 210B, 210C, and 210D. Accordingly, each of the plurality of vibration modules 210A, 210B, 210C, and 210D may be surrounded by the first adhesive layer 212 and the second adhesive layer 214 . For example, the first adhesive layer 212 and the second adhesive layer 214 may completely surround the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the first adhesive layer 212 and the second adhesive layer 214 may be represented by a cover member or the like, but is not limited thereto. When the first adhesive layer 212 and the second adhesive layer 214 are the cover member, the first protective member 213 is disposed on the first surface of the cover member, and the second protective member 215 is the second protective member 215 of the cover member. It can be placed on the side. For example, the first adhesive layer 212 and the second adhesive layer 214 are illustrated as the first adhesive layer 212 and the second adhesive layer 214 for convenience of description, and may be disposed as one adhesive layer.

Each of the first adhesive layer 212 and the second adhesive layer 214 according to the embodiment of the present specification may include an electrically insulating material capable of compression and restoration while having adhesive properties. For example, each of the first adhesive layer 212 and the second adhesive layer 214 may include an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin, and thus It is not limited.

The vibration device 200 or the vibration generator 210 according to the embodiment of the present specification may further include a first power supply line PL1 , a second power supply line PL2 , and a pad unit 201 .

The first power supply line PL1 may be disposed on the first protection member 213 . For example, it may be disposed on the rear surface of the first protection member 213 facing the first surface of the vibration generator 210 . The first power supply line PL1 may be electrically connected to the first electrode layer E1 of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the first power supply line PL1 may be directly electrically connected to the first electrode layer E1 of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the first power supply line PL1 may be electrically connected to the first electrode layer E1 of each of the plurality of vibration modules 210A, 210B, 210C, and 210D via an anisotropic conductive film. As another example, the first power supply line PL1 is connected to the first electrode layer ( E1) and may be electrically connected.

The first power supply line PL1 according to the embodiment of the present specification may include first and second upper power supply lines 213a and 213b disposed along the second direction Y. For example, the first upper power line 213a is a first vibration module 210A and a third vibration module 210C parallel to the second direction Y among the plurality of vibration modules 210A, 210B, 210C, and 210D. ) (or the first group) may be electrically connected to each of the first electrode layers E1 . The second upper power line 213b is a second vibration module 210B and a fourth vibration module 210D parallel to the first direction X among the plurality of vibration modules 210A, 210B, 210C, and 210D (or the second vibration module 210D). 2 groups) may be electrically connected to each of the first electrode layers E1 .

The second power supply line PL2 may be disposed on the second protection member 215 . For example, the second power supply line PL2 may be disposed on the front surface of the second protection member 215 facing the second surface of the vibration generator 210 . The second power supply line PL2 may be electrically connected to the second electrode layer E2 of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the second power supply line PL2 may be directly electrically connected to the second electrode layer E2 of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the second power supply line PL2 may be electrically connected to the second electrode layer E2 of each of the plurality of vibration modules 210A, 210B, 210C, and 210D via an anisotropic conductive film. As another example, the second power supply line PL2 is connected to the second electrode layer ( E2) and may be electrically connected.

The second power supply line PL2 according to the embodiment of the present specification may include a first lower power supply line 215a and a second lower power supply line 215b disposed along the second direction Y. For example, the first lower power line 215a is a first vibration module 210A and a third vibration module 210C parallel to the second direction Y among the plurality of vibration modules 210A, 210B, 210C, and 210D. ) (or the first group) may be electrically connected to each of the second electrode layers E2 . The second lower power line 215b is a second vibration module 210B and a fourth vibration module 210D parallel to the first direction X among the plurality of vibration modules 210A, 210B, 210C, and 210D (or the second vibration module 210D). 2 groups) may be electrically connected to each of the second electrode layers E2 .

The pad part 201 may be electrically connected to the first power supply line PL1 and the second power supply line PL2 . For example, the pad part 201 may be disposed in the vibration generator 210 to be electrically connected to one side (or one end) of each of the first power supply line PL1 and the second power supply line PL2 . The pad part 201 according to the embodiment of the present specification may include a first pad electrode and a second pad electrode. The first pad electrode may be electrically connected to one side of the first power supply line PL1 . The second pad electrode may be electrically connected to one side of the second power supply line PL2 .

The first pad electrode may be commonly connected to one side of each of the first upper power line 213a and the second upper power line 213b of the first power supply line PL1 . For example, one side of each of the first upper power line 213a and the second upper power line 213b may be branched from the first pad electrode.

The second pad electrode may be commonly connected to one side of each of the first lower power line 215a and the second lower power line 215b of the second power supply line PL2 . For example, one side of each of the first lower power line 215a and the second lower power line 215b may be branched from the second pad electrode.

The vibration device 200 or the vibration generator 210 according to the embodiment of the present specification may further include a second hole 201h.

The second hole 201h may overlap the pad part 201 . For example, since the second hole 201h is formed to pass through the first protective member 213 (or the second protective member 215 ) overlapping the pad part 201 , at least a portion of the pad part 201 . is exposed to the outside. For example, the second hole 201h is a hole in which wiring and/or cables capable of supplying a vibration driving signal (or acoustic signal) provided from the sound processing circuit to the vibration device 200 or the vibration generator 210 are exposed. can For example, the second hole 201h may be a pad hole or a pad exposure hole, and is not limited thereto. For example, the pad unit 201 may be electrically connected to a vibration signal line unit to be described later. For example, the vibration signal line unit may be electrically directly connected to the pad electrode of the pad unit 201 through the second hole 201h.

The vibration generator 210 according to the embodiment of the present specification may further include a plate 216 .

The plate 216 may be disposed on the first protection member 213 or the second protection member 215 . For example, the plate 216 may have the same shape as the first protection member 213 (or the second protection member 215 ). For example, the plate 216 may have a size equal to or larger than that of the first protection member 213 (or the second protection member 215 ).

The plate 216 according to the embodiment of the present specification may be disposed on the front surface (or the first surface) of the first protection member 213 . The plate 216 may be disposed on the front surface of the first protection member 213 of the vibration generator 210 via the connection member. The plate 216 according to the embodiment of the present specification may be disposed between the display panel 100 and the vibration generator 210 . For example, the plate 216 may be disposed on the rear surface of the display panel 100 via the connecting member 150 .

According to another example, the plate 216 may be disposed on the rear surface (or the second surface) of the second protection member 215 . The plate 216 may be disposed on the rear surface of the second protection member 215 of the vibration generator 210 via the connecting member. According to another example, the plate 216 may be disposed between the vibration generator 210 and the support member 300 .

The plate 216 according to the embodiment of the present specification is made of a metal material, for example, stainless steel, aluminum (Al), magnesium (Mg) alloy, magnesium lithium (Mg-Li) alloy, and aluminum (Al). ) may be made of one or more of the alloys, but is not limited thereto. The plate 216 is disposed on the first protection member 213 (or the second protection member 215) to reinforce the mass of the vibration generator 210, so that the resonance frequency of the vibration generator 210 according to the increase in mass. By reducing , the acoustic characteristics of the low-pitched range and the sound pressure characteristics of the low-pitched range generated in association with the vibration of the vibration generator 210 can be increased, and the flatness of the acoustic characteristics can be improved. Here, the flatness of the acoustic characteristics may be the magnitude of the deviation between the highest sound pressure and the lowest sound pressure.

Therefore, the vibrating device 200 according to the embodiment of the present specification is not driven independently, but a plurality of vibration modules 210A arranged (or tiled) at regular intervals D1 and D2 to be implemented as one single vibrating body; By including the vibration generator 210 having 210B, 210C, and 210D, it is possible to drive the plurality of vibration modules 210A, 210B, 210C, and 210D into a large-area vibrating body according to the unitary vibration. Accordingly, since the vibrating device 200 can vibrate the entire area of the display panel 100 , the sound characteristics and sound pressure characteristics in the reproduction band and the low-pitched band of the sound generated according to the vibration of the display panel 100 , respectively, are measured. can be increased or improved.

In addition, the vibration device 200 according to the embodiment of the present specification may further include a plate 216 disposed on the vibration generator 210 , so that the resonance frequency of the vibration generator 210 may be reduced. Accordingly, the vibration device 200 according to the embodiment of the present specification increases the acoustic characteristics of the low-pitched range and the sound pressure characteristics of the low-pitched range generated according to the vibration of the display panel 100 linked to the vibration of the vibration generator 210 . and improve the flatness of the acoustic characteristics.

6A to 6F are views illustrating a vibration module according to an embodiment of the present specification.

4, 5, and 6A, each of the plurality of vibration modules (210A, 210B, 210C, 210D) arranged (or tiled) in the vibration generator 210 according to the embodiment of the present specification is a vibration unit (211) may be included. For example, the vibration device according to the embodiment of the present specification may include two or more vibration modules. For example, each of the two or more vibration modules may include a first portion 211a and a second portion 211b. For example, the first portion 211a may include an inorganic material, and the second portion 211b may include an organic material. For example, the first portion 211a may have a piezoelectric characteristic, and the second portion 211b may have a ductility characteristic or flexibility. For example, the inorganic material of the first portion 211a may have piezoelectric properties, and the organic material of the second portion 211b may have ductility or flexibility. The vibrator 211 may include a plurality of first portions 211a and a plurality of second portions 211b. For example, the plurality of first portions 211a and the plurality of second portions 211b may be alternately and repeatedly disposed along the second direction Y. Each of the plurality of first portions 211a may be disposed between the plurality of second portions 211b. For example, each of the plurality of first portions 211a may have a first width W1 parallel to the second direction Y and a length parallel to the first direction X. Each of the plurality of second portions 211b may be disposed parallel to the second direction Y. For example, each of the plurality of first portions 211a may have a second width W2 and a length parallel to the first direction X. Each of the plurality of second portions 211b may have the same size, for example, an area, an area, or a volume. For example, each of the plurality of second parts 211b may have the same size, for example, an area, an area, or a volume within a process error (or tolerance) range generated in a manufacturing process. The first width W1 may be the same as or different from the second width W2 . For example, the first width W1 may be greater than the second width W2 . For example, the first portion 211a and the second portion 211b may include a line shape or a stripe shape having the same or different sizes. Accordingly, the vibrating unit 211 illustrated in FIG. 6A may have a resonance frequency of 20 kHz or less by having a 2-2 complex structure. The present invention is not limited thereto, and the resonance frequency of the vibrating unit 211 may be changed according to at least one or more of the shape, length, and thickness of the vibrating unit.

4, 5, and 6b, each of the plurality of vibration modules (210A, 210B, 210C, 210D) arranged in the vibration generator 210 according to another embodiment of the present specification vibrating unit 211 may include a plurality of first portions 211a and a plurality of second portions 211b alternately and repeatedly disposed along the first direction X. Each of the plurality of first portions 211a may be disposed between the plurality of second portions 211b. For example, each of the plurality of first portions 211a may have a third width W3 parallel to the first direction X and a length parallel to the second direction Y. Each of the plurality of second portions 211b may have a fourth width W4 parallel to the first direction X and a length parallel to the second direction Y. The third width W3 may be the same as or different from the fourth width W4 . For example, the third width W3 may be greater than the fourth width W4 . For example, the first portion 211a and the second portion 211b may include a line shape or a stripe shape having the same or different sizes. Accordingly, the vibrating unit 211 illustrated in FIG. 6B may have a resonance frequency of 20 kHz or less by having a 2-2 complex structure. The present invention is not limited thereto, and the resonance frequency of the vibrating unit 211 may be changed according to at least one or more of the shape, length, and thickness of the vibrating unit.

In the vibrating unit 211 shown in FIGS. 6A and 6B , each of the plurality of first parts 211a and the plurality of second parts 211b is disposed (or arranged) in parallel with each other on the same plane (or on the same layer). can be Each of the plurality of second portions 211b may be configured to fill a gap between two adjacent first portions 211a. Each of the plurality of second parts 211b may be connected to or adhered to an adjacent first part 211a. Accordingly, the vibrating unit 211 may be expanded to a desired size or length by side coupling (or connection) of the first part 211a and the second part 211b.

In the vibrating part (or vibrating layer) 211 shown in FIGS. 6A and 6B , the widths W2 and W4 of each of the plurality of second parts 211b are both edges from the middle part of the vibrating part 211 or the vibrating device. It may gradually decrease toward the part (or both sides or both ends).

According to the embodiment of the present specification, the second part 211b having the largest width W2 and W4 among the plurality of second parts 211b is the vibrating unit 211 or the vibrating device in the vertical direction (Z) (or thickness direction), it may be located in the portion where the greatest stress is concentrated. The second part 211b having the smallest widths W2 and W4 among the plurality of second parts 211b has the relatively smallest stress when the vibrating part 211 or the vibrating device vibrates in the vertical direction Z. It can be located in the part where this occurs. For example, the second portion 211b having the largest widths W2 and W4 among the plurality of second portions 211b is disposed in the middle portion of the vibrating unit 211, and the plurality of second portions 211b The second portions 211b having the smallest widths W2 and W4 among them may be disposed at both edges of the vibrating unit 211 . Accordingly, when the vibrating unit 211 or the vibrating device vibrates in the vertical direction (Z), the interference of sound waves generated in the portion where the greatest stress is concentrated or the overlap of the resonant frequency can be minimized, thereby minimizing the low frequency range. The sound pressure drop (dipping) generated in the sound pressure may be improved, and the flatness of the acoustic characteristics in the low-pitched range may be improved. For example, the flatness of the acoustic characteristic may be the magnitude of the deviation between the highest sound pressure and the lowest sound pressure.

In the vibrating unit 211 illustrated in FIGS. 6A and 6B , each of the plurality of first parts 211a may have a different size (or width). For example, the size (or width) of each of the plurality of first parts 211a may gradually decrease or increase from the middle part of the vibrating part 211 or the vibrating device toward both edge parts (or both sides or both ends). have. In this case, in the vibrating unit 211 , the sound pressure characteristics of the sound may be improved by various natural vibration frequencies according to the vibration of each of the plurality of first parts 211a having different sizes, and the sound reproduction band may be expanded. can

4, 5, and 6c, each of the plurality of vibration modules (210A, 210B, 210C, 210D) arranged in the vibration generator 210 according to another embodiment of the present specification vibrating unit 211 may include a plurality of first portions 211a spaced apart from each other in the first direction X and the second direction Y, and a second portion 211b disposed between the plurality of first portions 211a. can Each of the plurality of first portions 211a may be disposed to be spaced apart from each other in the first direction X and the second direction Y, respectively. For example, each of the plurality of first parts 211a may have a hexahedral shape having the same size and may be disposed in a grid shape. The second portion 211b may be disposed between the plurality of first portions 211a in each of the first direction X and the second direction Y. The second portion 211b may be configured to fill a gap between two adjacent first portions 211a or surround each of the plurality of first portions 211a. Accordingly, the second part 211b may be connected to or adhered to the adjacent first part 211a. For example, the width of the second portion 211b disposed between two adjacent first portions 211a along the first direction X may be the same as or different from the width of the first portion 211a, A width of the second portion 211b disposed between two adjacent first portions 211a in the second direction Y may be the same as or different from a width of the first portion 211a. Accordingly, the vibrating unit 211 illustrated in FIG. 6C may have a resonance frequency of 30 MHz or less according to the 1-3 complex structure. The present invention is not limited thereto, and the resonance frequency of the vibrating unit 211 may be changed according to at least one or more of the shape, length, and thickness of the vibrating unit.

4, 5, and 6D, each of the plurality of vibration modules (210A, 210B, 210C, 210D) arranged in the vibration generator 210 according to another embodiment of the present specification vibrating unit 211 may include a plurality of first portions 211a spaced apart from each other in the first direction X and the second direction Y, and a second portion 211b surrounding each of the plurality of first portions 211a. can Each of the plurality of first portions 211a may have a circular planar structure. For example, each of the plurality of first parts 211a may have a circular shape, but is not limited thereto, and may have a dot shape including an elliptical shape, a polygonal shape, or a donut shape. The second portion 211b may be configured to surround each of the plurality of first portions 211a. Accordingly, the second portion 211b may be connected to or adhered to the side surfaces of each of the plurality of first portions 211a. Each of the plurality of first portions 211a and second portions 211b may be disposed (or arranged) in parallel with each other on the same plane (or on the same layer). Accordingly, the vibrating unit 211 shown in FIG. 6D may be implemented as a circular vibration source (or vibrating body) having a 1-3 complex structure, and thus vibration characteristics or sound output characteristics may be improved. , may have a resonant frequency of 30 MHz or less. The present invention is not limited thereto, and the resonance frequency of the vibrating unit 211 may be changed according to at least one or more of the shape, length, and thickness of the vibrating unit.

4, 5, and 6E, each of the vibration modules 210A, 210B, 210C, and 210D arranged in the vibration generator 210 according to another embodiment of the present specification, the vibration unit 211 may include a plurality of first portions 211a spaced apart from each other in the first direction X and the second direction Y, and a second portion 211b surrounding each of the plurality of first portions 211a. can Each of the plurality of first portions 211a may have a triangular planar structure. For example, each of the plurality of first portions 211a may have a triangular plate shape.

For example, four adjacent first portions 211a among the plurality of first portions 211a may be adjacently disposed to form a square shape (or a square shape). The vertices of each of the four adjacent first portions 211a forming a square shape may be disposed adjacent to a central portion (or a central portion) of the square shape. The second portion 211b may be configured to surround each of the plurality of first portions 211a. Accordingly, the second portion 211b may be connected to or adhered to the side surfaces of each of the plurality of first portions 211a. Each of the plurality of first portions 211a and second portions 211b may be disposed (or arranged) in parallel with each other on the same plane (or on the same layer). Accordingly, the vibrating unit 211 illustrated in FIG. 6E may have a resonance frequency of 30 MHz or less according to the 1-3 complex structure. The present invention is not limited thereto, and the resonance frequency of the vibrating unit 211 may be changed according to at least one or more of the shape, length, and thickness of the vibrating unit.

According to another example, as illustrated in FIG. 6F , six adjacent first parts 211a among the plurality of first parts 211a may be disposed adjacent to each other to form a hexagonal shape (or a regular hexagonal shape). The vertices of each of the six adjacent first portions 211a forming the hexagonal shape may be disposed adjacent to the central portion (or the central portion) of the hexagonal shape. The second portion 211b may be configured to surround each of the plurality of first portions 211a. Accordingly, the second portion 211b may be connected to or adhered to the side surfaces of each of the plurality of first portions 211a. Each of the plurality of first portions 211a and second portions 211b may be disposed (or arranged) in parallel with each other on the same plane (or on the same layer). Accordingly, the vibrating unit 211 shown in FIG. 6f may be implemented as a vibration source (or vibrating body) close to a circular shape while having a 1-3 complex structure, which may improve vibration characteristics or sound output characteristics. , may have a resonant frequency of 30 MHz or less. The present invention is not limited thereto, and the resonance frequency of the vibrating unit 211 may be changed according to at least one or more of the shape, length, and thickness of the vibrating unit.

6E and 6F , 2N (N is a natural number greater than or equal to 2) adjacent first portions 211a among the plurality of first portions 211a having a triangular shape may be disposed adjacent to each other to form a 2N angular shape. .

6A to 6F , each of the plurality of first parts 211a according to the embodiment of the present specification may be formed of an inorganic material part. The inorganic material portion may include a piezoelectric material or an electroactive material. In the case of a piezoelectric material or an electroactive material, a potential difference is generated by dielectric polarization according to the relative position change of positive (+) ions and negative (-) ions while a pressure or torsion phenomenon is applied to the crystal structure by an external force, and the voltage applied in the opposite direction It has a characteristic that vibration is generated by an electric field according to the 5 , a first surface of each of the plurality of first portions 211a is electrically connected to the first electrode layer E1 , and a second surface of each of the plurality of first portions 211a is a second electrode layer (E2) may be electrically connected.

6A to 6F , the inorganic material part configured in each of the plurality of first parts 211a is made of a ceramic-based material capable of implementing relatively high vibration or a piezoelectric having a perovskite-based crystal structure. It may be made of ceramic. The perovskite crystal structure has piezoelectric and reverse piezoelectric effects, and may be a plate-shaped structure having orientation. The perovskite crystal structure is represented by the chemical formula of ABO ₃ , the A site may be formed of a divalent metal element, and the B site may be formed of a tetravalent metal element. For example, in the formula of ABO ₃ , the A site and the B site may be cations, and O may be anions. For example, it may include at least one of PbTiO ₃ , PbZrO ₃ , PbZrTiO ₃ , BaTiO ₃ , and SrTiO ₃ , but is not limited thereto.

In the case of a central ion, for example, PbTiO ₃ , the polarization of the perovskite crystal structure may be changed by an external stress or magnetic field to generate a piezoelectric effect. For example, the perovskite crystal structure is a tetragonal, orthorhombic, and A piezoelectric effect may be generated by changing into a shape such as a rhombohedral. In the morphotropic phase boundary region of tetragonal and rhombohedral having a non-symmetrical structure, polarization is high and polarization rearrangement is easy, so that it can have high piezoelectric properties.

According to the embodiment of the present specification, the inorganic material portion configured in each of the plurality of first portions 211a is lead (Pb), zirconium (Zr), titanium (Ti) zinc (Zn), nickel (Ni), and niobium ( It may include one or more of Nb), but is not limited thereto.

According to another example, the inorganic material portion configured in each of the plurality of first portions 211a is a lead zirconate titanate (PZT)-based material including lead (Pb), zirconium (Zr), and titanium (Ti), or lead lead zirconate nickel niobate (PZNN)-based materials including, but not limited to, (Pb), zinc (Zn), nickel (Ni), and niobium (Nb). Alternatively, the inorganic material part may include at least one of CaTiO ₃ , BaTiO ₃ , and SrTiO ₃ that does not contain lead (Pb), but is not limited thereto.

According to another example, the inorganic material part included in each of the plurality of first parts 211a may have a piezoelectric strain coefficient d ₃₃ in the thickness direction Z of 1,000 pC/N or more. The vibration device can be applied to a large display panel, and in order to have sufficient vibration or piezoelectric properties, it is necessary to have a high piezoelectric strain coefficient (d ₃₃ ). For example, in order to have a high piezoelectric strain coefficient (d ₃₃ ), the inorganic material part has a PZT-based material (PbZrTiO ₃ ) as a main component, and a softner dopant material doped in the A site (Pb), and the B site It may include a relaxor ferroelectric material doped with (ZrTi).

The softner dopant material may improve the piezoelectric properties and dielectric properties of the inorganic material portion, for example, may increase the piezoelectric strain coefficient (d ₃₃ ) of the inorganic material portion. The softner dopant material according to the embodiment of the present specification may include a +2-valent to +3-valent element. Since the PZT-based material (PbZrTiO ₃ ) includes a softner dopant material to form a Morphotropic Phase Boundary (MPB), piezoelectric properties and dielectric properties can be improved. For example, the softner dopant material may be strontium (Sr), barium (Ba), lanthanum (La), niobium neodymium (NbNd), calcium (Ca), yttrium (Y), erbium (Er), or ytterbium (Er). Yb) may be included. For example, ions (Sr ²⁺ , Ba ²⁺ , La ²⁺ , Nb ⁵⁺ Nd ³⁺ , Ca ²⁺ , Y ³⁺ , Er ³ of a softner dopant material doped into a PZT-based material (PbZrTiO ₃ ) ⁺ , Yb ³⁺ ) substitutes a part of lead (Pb) in the PZT-based material (PbZrTiO ₃ ), and the substitution amount may be 2 to 20 mol%. For example, when the substitution amount is less than 2 mol% or exceeds 20 mol%, the perovskite crystal structure is broken, so that the electrical coupling coefficient (kP) and the piezoelectric strain coefficient (d ₃₃ ) may decrease. When the softner dopant material is substituted, a morphotropic phase boundary region can be formed, and high piezoelectric properties and dielectric properties can be obtained in the phase transition boundary region, so that a vibrating device having high piezoelectric properties and dielectric properties can be realized. can

According to the embodiment of the present specification, the relaxer ferroelectric material doped in the PZT-based material (PbZrTiO ₃ ) may improve the electric deformation characteristics of the inorganic material portion. The relaxer ferroelectric material according to the embodiment of the present specification may include a lead magnesium niobate (PMN)-based material or a lead nikel niobate (PNN)-based material, but is not limited thereto. The PMN-based material may include lead (Pb), magnesium (Mg), and niobium (Nb), for example, Pb(Mg, Nb)O ₃ . The PNN-based material may include lead (Pb), nickel (Ni), and niobium (Nb), for example, Pb(Ni, Nb)O ₃ . For example, the relaxer ferroelectric material doped in the PZT-based material (PbZrTiO ₃ ) substitutes a part of each of zirconium (Zr) and titanium (Ti) in the PZT-based material (PbZrTiO ₃ ), and the substitution amount is 5 to 25 mol% can be For example, when the substitution amount is less than 5 mol% or exceeds 25 mol%, the perovskite crystal structure is broken, so the electrical coupling coefficient (kP) and the piezoelectric strain coefficient (d ₃₃ ) may decrease.

According to the embodiment of the present specification, the inorganic material portion configured in each of the plurality of first portions 211a is a donor (ZrTi) doped to the B site (ZrTi) of the PZT-based material (PbZrTiO ₃ ) to further improve the piezoelectric strain coefficient. donor) may further include a substance. For example, the donor material doped into the B site (ZrTi) may include a +4-valent to +6-valent element. For example, the donor material doped into the B-site (ZrTi) is tellurium (Te), germanium (Ge), uranium (U), niobium (Nb), tantalum (Ta), antimony (Sb), or tungsten ( W) may be included.

Since the inorganic material part included in the plurality of first parts 211a according to the embodiment of the present specification may have a piezoelectric strain coefficient d ₃₃ in the thickness direction Z of 1,000 pC/N or more, vibration characteristics are improved A vibrating device can be implemented. For example, a vibration device with improved vibration characteristics can be implemented in a device having a large area.

6A to 6F , the second portion 211b may be disposed between the plurality of first portions 211a or may be disposed to surround each of the plurality of first portions 211a. Accordingly, the vibrating unit 211 of the vibration generator 210 or the vibrating device 200 may increase vibration energy due to the link in the unit lattice of the first part 211a by the second part 211b. Characteristics may be increased, and piezoelectric characteristics and flexibility may be secured. For example, the second part 211b may be one of an epoxy-based polymer, an acryl-based polymer, and a silicone-based polymer, but is not limited thereto.

The second part 211b according to the embodiment of the present specification may be formed of an organic material part. For example, the organic material part can absorb an impact applied to the inorganic material part (or the first part) by being disposed between the inorganic material parts, and it vibrates by releasing stress concentrated on the inorganic material part. The durability of the vibrating unit 211 or the vibrating device of the generator 210 may be improved, and flexibility may be provided to the vibrating unit 211 or the vibrating device of the vibration generator 210 .

The second portion 211b according to the embodiment of the present specification may have a lower modulus and viscoelasticity as compared to the first portion 211a. Accordingly, the reliability of the first portion 211a, which is vulnerable to impact due to the brittle characteristic of the first portion 211a, may be improved. For example, the second part 211b may be made of a material having a loss factor of 0.01 to 1 and a modulus of 0.1 to 3 [Gpa].

The organic material portion included in the second portion 211b may include an organic material, an organic polymer, an organic piezoelectric material, or an organic non-piezoelectric material having flexible or soft properties compared to the inorganic material portion serving as the first portion 211a. can For example, the second part 211b may be expressed as an adhesive part, a stretchable part, a bending part, a damping part, or a flexible part, but is not limited thereto.

Accordingly, the vibrating unit 211 of the vibration generator 210 according to various embodiments of the present specification is a single thin layer by disposing (or connecting) the plurality of first parts 211a and second parts 211b on the same plane. It may have a film form. For example, the vibrating unit 211 may vibrate in the vertical direction by the first part 211a having vibration characteristics, and may be bent in a curved shape by the second part 211b having flexibility or ductility. . And, in the vibrating unit 211 of the vibration generator 210 according to various embodiments of the present specification, the size of the first part 211a and the size of the second part 211b are piezoelectric required for the vibrating unit 211 . It can be set according to characteristics and flexibility. For example, in the case of the vibrating unit 211 requiring piezoelectric properties rather than flexibility, the size of the first part 211a may be larger than the size of the second part 211b. As another example, in the case of the vibrating unit 211 requiring flexibility rather than piezoelectric characteristics, the size of the second part 211b may be larger than the size of the first part 211a. Therefore, since the size of the vibrating unit 211 can be adjusted according to required characteristics, there is an advantage in that the design of the vibrating unit 211 is easy.

One or more of the vibrating units 211 shown in FIGS. 6A to 6F may be at least one vibrating unit 211 among the plurality of vibrating modules 210A, 210B, 210C, and 210D shown in FIG. 4 . For example, each of the plurality of vibration modules 210A, 210B, 210C, and 210D according to the required characteristics of the sound generated in association with the vibration of the vibration device 200, the vibration unit 211 described with reference to FIGS. 6A to 6F . ) can be implemented as one or more of

According to the embodiment of the present specification, each of the plurality of vibration modules 210A, 210B, 210C, and 210D includes one or more vibration units 211 among the vibration units 211 described with reference to FIGS. 6A to 6F or different vibrations. East 211 may be included.

According to the embodiment of the present specification, a vibration module of some of the plurality of vibration modules 210A, 210B, 210C, and 210D and each of the remaining vibration modules is a different vibration unit among the vibration units 211 described with reference to FIGS. 6A to 6F . (211) may be included. For example, in the first to fourth vibration modules 210A, 210B, 210C, and 210D illustrated in FIG. 4 , each of the first and second vibration modules 210A and 210B is the vibration unit described with reference to FIGS. 6A to 6F . One or more vibrating units 211 among 211 may be included, and the third and fourth vibrating modules 210C and 210D are respectively the first and second vibrating modules 210A among the vibrating units 211 described with reference to FIG. 6B . , may include a vibrating unit 211 different from the vibrating unit 211 of 210B. For example, in the first to fourth vibration modules 210A, 210B, 210C, and 210D illustrated in FIG. 4 , the first and fourth vibration modules 210A and 210D arranged in the first diagonal direction are illustrated in FIGS. 6A to 6A to 210D . One or more vibrating units 211 among the vibrating units 211 described with reference to FIG. 6F may be included, and the second and third vibrating modules 210B and 210C disposed in the second diagonal direction are described with reference to FIGS. 6A to 6F . The first and fourth vibration modules 210A and 210D disposed in the first diagonal direction among the vibrating units 211 may include other vibrating units 211 .

7 is a view showing an apparatus according to another embodiment of the present specification. Fig. 7 is another cross-sectional view taken along the line II' shown in Fig. 1;

A vibration device including one vibration generator has a problem in that it cannot output sufficient sound. For example, when a vibration device including one vibration generator is configured in a device such as a TV, it is difficult to secure sufficient sound. Accordingly, when a vibration device implemented with two vibration generators is applied to the device, an attachment area between the display panel 100 or the vibration target and the vibration device may be increased. When the vibration device is attached to the rear surface of the display panel 100 as the attachment area increases, there is a problem in that it is difficult to attach the vibration device to the rear surface of the display panel 100 without air bubbles. For example, when the display panel 100 is a light emitting display panel, there is a problem in that it is difficult to attach it to the encapsulation substrate without air bubbles. In addition, the vibration device implemented by attaching two vibration generators disposed in parallel with each other has a problem of divided vibration in which different vibrations occur due to different vibrations between neighboring vibration generators. Due to this, there is a problem in that the flatness of the acoustic characteristics is lowered. There is a problem in that the divided vibration increases as the attachment area of the vibration device increases.

The vibration device 200 according to the embodiment of the present specification may include a plurality of vibration generators 210 and 230 overlapping each other. The vibration device 200 may include a plurality of vibration generators 210 and 230 that are overlapped or stacked to be displaced in the same direction. For example, the vibration device 200 may include a plurality of vibration generators 210 and 230 that are overlapped or stacked to have the same driving direction.

The plurality of vibration generators 210 and 230 may be overlapped or stacked so as to be displaced (or driven) in the same direction as each other. For example, each of the plurality of vibration generators 210 and 230 contracts or expands in the same driving direction (or displacement direction) in the same driving direction (or displacement direction) according to a vibration driving signal in a state in which they are overlapped or stacked, thereby displacing an amount (or bending force) or amplitude displacement. can be increased or maximized. As a result, the plurality of vibration generators 210 and 230 increase (or maximize) the displacement amount (or bending force) or amplitude displacement of the display panel 100 so as to include the mid-low range generated according to the vibration of the display panel 100 . It is possible to improve the acoustic characteristics and the sound pressure characteristics of the sound. For example, the plurality of vibration generators 210 and 230 may be implemented to overlap or stack with each other to have the same driving direction, thereby increasing or maximizing the driving force of the plurality of vibration generators 210 and 230 . Accordingly, it is possible to improve the acoustic characteristics of the mid-low range and the sound pressure characteristics generated by the display panel 100 according to the vibrations of the plurality of vibration generators 210 and 230 . For example, the mid-bass range may be 200 Hz to 1 kHz, but is not limited thereto.

Each of the plurality of vibration generators 210 and 230 may include a piezoelectric structure (vibration unit or piezoelectric vibrating unit) including a piezoelectric ceramic having piezoelectric characteristics, but is not limited thereto. For example, each of the plurality of vibration generators 210 and 230 according to the embodiment of the present specification includes a piezoelectric ceramic having a perovskite crystal structure, thereby vibrating (or mechanical displacement) in response to an externally applied electrical signal. can do. For example, when a vibration driving signal (or a voice signal) is applied to each of the plurality of vibration generators 210 and 230, contraction and expansion are alternately performed by the inverse piezoelectric effect of the piezoelectric structure (vibration unit or piezoelectric vibrating unit). The amount of displacement (or bending force) or amplitude displacement of the vibrating device 200 or/and the display panel 100 is increased or maximized by displacement (or vibration) in the same direction due to a bending phenomenon in which the bending direction is alternately changed as it is repeated. can be

The first vibration generator 210 disposed on the display panel 100 among the plurality of vibration generators 210 and 230 may be one main vibration generator. For example, the remaining second vibration generator 230 among the plurality of vibration generators 210 and 230 has the same structure as the first vibration generator 210 and at least one auxiliary stacked on the first vibration generator 210 . It may be a vibration generator. The second vibration generator 230 may have the same structure as the first vibration generator 210 , but is not limited thereto.

The vibration device 200 according to the embodiment of the present specification may further include an adhesive member 250 (or a third connection member) disposed between the plurality of vibration generators 210 and 230 .

The adhesive member 250 according to the embodiment of the present specification may be disposed between the plurality of vibration generators 210 and 230 . For example, the adhesive member 250 may be made of a material including an adhesive layer having excellent adhesion or adhesion to each of the plurality of vibration generators 210 and 230 . For example, the adhesive member 250 may include a foam pad, a double-sided tape, or an adhesive, but is not limited thereto. For example, the adhesive layer of the adhesive member 250 may include, but is not limited to, epoxy, acryl, silicone, or urethane. For example, the adhesive layer of the adhesive member 250 may include a urethane-based material (or material) having relatively soft properties than acryl among acrylic and urethane. Accordingly, vibration loss in the vibration device 200 due to displacement interference between the plurality of vibration generators 210 and 230 may be minimized or each of the plurality of vibration generators 210 and 230 may be freely displaced.

The plurality of vibration generators 210 and 230 according to the embodiment of the present specification may be integrated into one structure (or part) by a laminating process using an adhesive.

The device according to the embodiment of the present specification may further include a connection member 150 (or a first connection member) disposed between the display panel 100 and the vibrating device 200 .

The connection member 150 may be disposed between the display panel 100 and the vibrating device 200 to connect or couple the vibrating device 200 to the rear surface of the display panel 100 . For example, the vibrating device 200 may be supported or disposed on the rear surface of the display panel 100 by being connected or coupled to the rear surface of the display panel 100 via the connecting member 150 .

The connecting member 150 according to the embodiment of the present specification may be made of a material including an adhesive layer having excellent adhesion or adhesion to the rear surface of the display panel 100 and the vibrating device 200, respectively. For example, the connecting member 150 may include a foam pad, a double-sided tape, or an adhesive, but is not limited thereto. For example, the adhesive layer of the connecting member 150 may include, but is not limited to, epoxy, acryl, silicone, or urethane. For example, the adhesive layer of the connecting member 150 may be different from or different from the adhesive layer of the adhesive member 250 . For example, the adhesive layer of the connecting member 150 is an acryl-based adhesive layer having relatively excellent adhesive strength and high hardness among acrylic and urethane so that the vibration of the vibrating device 200 can be transmitted to the display panel 100 well. may include a material (or material) of Accordingly, the vibration of the vibrating device 200 may be well transmitted to the display panel 100 .

The adhesive layer of the connection member 150 may further include an additive such as a tackifier, a wax component, or an antioxidant. The additive may prevent the connection member 150 from falling off (or peeling off) from the display panel 100 due to the vibration of the vibrating device 200 . For example, the tackifier may be a rosin derivative or the like, and the wax component may be paraffin wax or the like. For example, the antioxidant may be a phenol-based antioxidant such as thioester, but is not limited thereto.

The connecting member 150 according to another example may further include a hollow part provided between the display panel 100 and the vibrating device 200 . The hollow portion of the connecting member 150 may provide an air gap between the display panel 100 and the vibrating device 200 . The air gap minimizes the loss of vibration caused by the connecting member 150 by allowing sound waves (or sound pressure) according to the vibration of the vibrating device 200 to be concentrated on the display panel 100 without being dispersed by the connecting member 150 . Therefore, it is possible to increase the sound pressure characteristics of the sound generated according to the vibration of the display panel 100 .

The device according to the embodiment of the present specification may further include a support member 300 and a middle frame 400 disposed on the rear surface of the display panel 100 . Descriptions of the support member 300 and the middle frame 400 are the same as or similar to those described with reference to FIGS. 1 and 2 , and thus a description thereof will be omitted.

The device according to the embodiment of the present specification may include a hole 301 . Since the description of the hole 301 is the same as or similar to that described in FIG. 3 , a description thereof will be omitted.

8 is a view showing an apparatus according to another embodiment of the present specification. Fig. 8 is another cross-sectional view taken along the line II' shown in Fig. 1;

1 and 8 , the vibration device 200 according to the embodiment of the present specification may include a plurality of vibration generators 210 and 230 , and an adhesive member 250 . For example, the vibration device 200 may include two or more vibration modules.

The plurality of vibration generators 210 and 230 may be overlapped or stacked so as to be displaced (or driven) in the same direction as each other in order to maximize the amplitude displacement of the vibration device 200 and/or the amplitude displacement of the display panel 100 . have. For example, the plurality of vibration generators 210 and 230 may have substantially the same size as each other, but is not limited thereto. For example, the plurality of vibration generators 210 and 230 may have substantially the same size within an error range in a manufacturing process, but is not limited thereto. Accordingly, the plurality of vibration generators 210 and 230 may maximize the amplitude displacement of the vibration device 200 and/or the amplitude displacement of the display panel 100 . One side of each of the plurality of vibration generators 210 and 230 (end or outer surface or each corner) 210a and 230a is an imaginary extension line VL extending along the thickness direction Z of the display panel 100 . It may be aligned or located on the virtual extension line VL.

For example, at least one of the plurality of vibration generators 210 and 230 does not match the displacement direction and amplitude displacement of each of the plurality of vibration generators 210 and 230, so that the amplitude displacement of the vibration device 200 can be maximized. none. For example, when at least one of the plurality of vibration generators 210 and 230 has a different size out of the error range in the manufacturing process, the displacement direction and amplitude displacement of each of the plurality of vibration generators 210 and 230 do not coincide with each other. Therefore, the amplitude displacement of the vibrating device 200 cannot be maximized. In addition, when at least one of the plurality of vibration generators 210 and 230 is displaced in a different direction, the respective displacement directions of the plurality of vibration generators 210 and 230 do not coincide with each other, so that the amplitude displacement of the vibration device 200 is maximized. can't be

The vibration device 200 according to the embodiment of the present specification may include two or more vibration generators 210 and 230 stacked to displace in the same direction. In the following description, it is assumed that the vibration device 200 includes the first and second vibration generators 210 and 230 .

According to the embodiment of the present specification, the first vibration generator 210 may be connected to or disposed on the rear surface of the display panel 100 via the connection member 150 (or the first connection member). The second vibration generator 230 may be disposed on or attached to the first vibration generator 210 via the adhesive member 250 (or the third connection member).

Each of the first and second vibration generators 210 and 230 according to the embodiment of the present specification may include a vibration unit 221 , a first protection member 213 , and a second protection member 215 .

The vibrating unit 221 may include a piezoelectric material (or a piezoelectric element) having a piezoelectric characteristic (or a piezoelectric effect). For example, in a piezoelectric material, a potential difference is generated by dielectric polarization according to the relative position change of positive (+) ions and negative (-) ions while a pressure or torsion phenomenon is applied to the crystal structure by an external force, and a voltage applied in the opposite direction It may have a characteristic in which vibration is generated by an electric field according to the

The vibrating unit 221 according to the embodiment of the present specification includes a vibrating layer 221a including a piezoelectric material, a first electrode layer 221b disposed on a first surface of the vibrating layer 221a, and a first surface of the vibrating layer 221a. and a second electrode layer 221c disposed on a second surface opposite to the second electrode layer 221c.

The vibration layer 221a may include a piezoelectric material. The vibrating layer 221a includes a piezoelectric material, and may be expressed in other terms such as a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric vibrating part, a piezoelectric material part, an electroactive part, an inorganic material layer, or an inorganic material part. , but is not limited thereto.

The vibration layer 221a may be made of a transparent, translucent, or opaque piezoelectric material, and thus may be transparent, translucent, or opaque. Since the vibration layer 221a is substantially the same as the description of the vibration unit 211 described with reference to FIGS. 6A to 7 , a description thereof will be omitted.

The vibration layer 221a according to the embodiment of the present specification may be configured in a circular shape, an elliptical shape, or a polygonal shape, but is not limited thereto.

The first electrode layer 221b may be disposed on the first surface (or upper surface) of the vibration layer 221a. The second electrode layer 221c may be disposed on another second surface (or rear surface) of the vibration layer 221a opposite to the first surface. The first electrode layer 221b and the second electrode layer 221c are substantially the same as those of the first electrode layer E1 and the second electrode layer E2 described in FIGS. 4 and 5 , and thus the description may be omitted or simplified. .

For example, the first electrode layer 221b may have the same shape as the vibration layer 221a, but is not limited thereto. For example, the second electrode layer 221c may have the same shape as the vibration layer 221a, but is not limited thereto.

In each of the first and second vibration generators 210 and 230 , the first electrode layer 221b may be disposed closer to the display panel 100 than the second electrode layer 221c, but is not limited thereto. For example, in the vibration device 200 including a plurality of vibration generators 210 and 230 according to the present specification, a first electrode layer 221b of each of the plurality of vibration generators 210 and 230 is a second electrode layer 221c. It may be disposed closer to the display panel 100 .

The vibration layer 221a may be polarized by a voltage applied to the first electrode layer 221b and the second electrode layer 221c in a constant temperature atmosphere or a temperature atmosphere changing from high temperature to room temperature, but is not limited thereto. For example, the vibration layer 221a alternates between contraction and expansion due to a reverse piezoelectric effect according to a vibration driving signal (or acoustic signal or voice signal) applied to the first electrode layer 221b and the second electrode layer 221c from the outside. It can be displaced or oscillated with repeated repetition.

The vibrating unit 221 (or the vibrating layer 221a) of the first vibration generator 210 may have the same size as the vibrating unit 221 (or the vibrating layer 221a) of the second vibration generator 230 . In order to maximize or increase the displacement amount or amplitude displacement of the vibrating device 200 , the vibrating unit 221 (or the vibrating layer 221a) of the first vibration generator 210 includes the vibrating unit 221 of the second vibration generator 230 . ) (or the vibration layer 221a) may be substantially overlapped or overlapped without crossing over. For example, the vibrating unit 221 (or the vibrating layer 221a) of the first vibration generator 210 does not intersect with the vibrating unit 221 (or the vibrating layer 221a) of the second vibration generator 230 during the manufacturing process It may be substantially overlapped or overlapped within the error range of the above image. For example, the vibrating unit 221 (or the vibrating layer 221a) of the first vibration generator 210 and the vibrating unit 221 (or the vibrating layer 221a) of the second vibration generator 230 have the same size. It is implemented in a stacked structure that is overlapped without crossing while having, thereby maximizing or increasing the displacement or amplitude displacement of the vibrating device 200 . For example, the vibrating unit 221 (or the vibrating layer 221a) of the first vibration generator 210 and the vibrating unit 221 (or the vibrating layer 221a) of the second vibration generator 230 have the same size. It is implemented as a stacked structure exactly overlapping without crossing while having, and thus the displacement amount or amplitude displacement of the vibrating device 200 may be maximized or increased.

According to the embodiment of the present specification, each first part (end or outer surface or each corner part) 210a of the vibrating unit 221 (or the vibrating layer 221a) of the first vibration generator 210 is a virtual It may be aligned with the extension line VL or may be located on the virtual extension line VL. For example, each first part (end or outer surface or each corner part) 210a of the vibrating part 221 (or the vibrating layer 221a) of the first vibration generator 210 is an imaginary extension line VL. It may be precisely aligned with the , or may be precisely located on the virtual extension line VL. Each second part (end or outer surface or each corner part) 230a of the vibrating part 221 (or the vibrating layer 221a) of the second vibration generator 230 is aligned with the imaginary extension line VL, or It may be located on the extension line VL of For example, each second part (end or outer surface or each corner part) 230a of the vibrating part 221 (or the vibrating layer 221a) of the second vibration generator 230 is an imaginary extension line VL. It may be precisely aligned with the , or may be precisely located on the virtual extension line VL. Each of the first parts 210a of the vibrating part 221 (or the vibrating layer 221a) of the first vibration generator 210 is the vibrating part 221 (or the vibrating layer 221a) of the second vibration generator 230 ). may be aligned or overlapped with each of the second portions 230a of For example, each of the first portions 210a of the vibrating unit 221 (or vibrating layer 221a) of the first vibration generator 210 is the vibrating unit 221 (or vibrating layer) of the second vibration generator 230 . It can be precisely aligned or superimposed on each second portion 230a of 221a). For example, each of the first portions 210a of the vibrating unit 221 (or vibrating layer 221a) of the first vibration generator 210 is the vibrating unit 221 (or vibrating layer) of the second vibration generator 230 . It may correspond to each second part 230a of (221a)). Accordingly, the vibrating device 200 according to the present specification includes the vibrating unit 221 (or the first vibrating unit) of the first vibration generator 210 and the vibrating unit 221 (or the second vibrating unit) of the second vibration generator 230 . As the vibrating units) are displaced in the same direction, the displacement amount or amplitude displacement may be maximized or increased. Accordingly, the amount of displacement (or bending force) or amplitude displacement of the display panel 100 may be increased (or maximized).

In the first vibration generator 210 , the first protection member 213 may be disposed on the first electrode layer 221b. The first protective member 213 may protect the first electrode layer 221b. The second protection member 215 may be disposed on the second electrode layer 221c. The second protective member 215 may protect the second electrode layer 221c. For example, each of the first protection member 213 and the second protection member 215 of the first vibration generator 210 may be made of a plastic material, a fiber material, or a wood material, but is not limited thereto. For example, in the first vibration generator 210 , the first protection member 213 may be made of the same or different material as the second protection member 215 . At least one of the first protection member 213 and the second protection member 215 of the first vibration generator 210 is disposed on the rear surface of the display panel 100 via the connection member 250 (or the third connection member). may be connected or combined. For example, the first protection member 213 of the first vibration generator 210 may be connected to or coupled to the rear surface of the display panel 100 via the connection member 250 (or the third connection member).

In the second vibration generator 230 , the first protection member 213 may be disposed on the first electrode layer 221b. The first protective member 213 may protect the first electrode layer 221b. The second protection member 215 may be disposed on the second electrode layer 221c. The second protective member 215 may protect the second electrode layer 221c. For example, each of the first protection member 213 and the second protection member 215 of the second vibration generator 230 may be made of a plastic material, a fiber material, or a wood material, but is not limited thereto. For example, in the second vibration generator 230 , the first protection member 213 may be made of the same or different material as the second protection member 215 . At least one of the first protection member 213 and the second protection member 215 of the second vibration generator 230 is connected to the first vibration generator 210 via the connection member 250 (or the third connection member). It can be connected or coupled to the rear. For example, the first protection member 213 of the second vibration generator 230 may be connected to or coupled to the second protection member 215 of the first vibration generator 210 via the connection member 250 . .

In each of the first and second vibration generators 210 and 230 , each of the first and second protection members 213 and 215 made of a plastic material may be made of a plastic material. For example, each of the first and second protective members 213 and 215 may be a polyimide film or a polyethylene terephthalate film, but is not limited thereto.

At least one of the first and second vibration generators 210 and 230 according to the embodiment of the present specification may further include a first adhesive layer 212 and a second adhesive layer 214 .

In the first vibration generator 210 , the first adhesive layer 212 may be disposed between the vibration unit 221 and the first protection member 213 . For example, the first adhesive layer 212 may be disposed between the first electrode layer 221b of the vibrating unit 221 and the first protection member 213 . The first protective member 213 may be disposed on the first surface (or the first electrode layer 221b) of the vibrating unit 221 via the first adhesive layer 212 . For example, the first protective member 213 may be coupled or connected to the first surface (or the first electrode layer 221b) of the vibrating unit 221 by a laminating process via the first adhesive layer 212 . .

In the first vibration generator 210 , the second adhesive layer 214 may be disposed between the vibration unit 221 and the second protection member 215 . For example, the second adhesive layer 214 may be disposed between the second electrode layer 221c of the vibrating unit 221 and the second protection member 215 . The second protection member 215 may be disposed on the second surface (or the second electrode layer 221c) of the vibrating unit 221 via the second adhesive layer 214 . For example, the second protective member 215 may be coupled or connected to the second surface (or the second electrode layer 221c) of the vibrating unit 221 by a laminating process via the second adhesive layer 214 . .

In the first vibration generator 210 , the first adhesive layer 212 and the second adhesive layer 214 may be connected to or coupled to each other between the first protective member 213 and the second protective member 215 . For example, in the first vibration generator 210 , the first adhesive layer 212 and the second adhesive layer 214 are connected to each other at an edge portion between the first protective member 213 and the second protective member 215 , or can be combined. Accordingly, in the first vibration generator 210 , the vibration unit 221 may be surrounded by the first adhesive layer 212 and the second adhesive layer 214 . For example, the first adhesive layer 212 and the second adhesive layer 214 may completely surround the vibration unit 221 of the first vibration generator 210 . For example, the first adhesive layer 212 and the second adhesive layer 214 may be represented by a cover member or the like, but is not limited thereto. When the first adhesive layer 212 and the second adhesive layer 214 are the cover member, the first protective member 213 is disposed on the first surface of the cover member, and the second protective member 215 is the second protective member 215 of the cover member. It can be placed on the side. For example, the first adhesive layer 212 and the second adhesive layer 214 are illustrated as the first adhesive layer 212 and the second adhesive layer 214 for convenience of description, and may be disposed as one adhesive layer.

In the second vibration generator 230 , the first adhesive layer 212 may be disposed between the vibration unit 221 and the first protection member 213 . For example, the first adhesive layer 212 may be disposed between the first electrode layer 221b of the vibrating unit 221 and the first protection member 213 . The first protective member 213 may be disposed on the first surface (or the first electrode layer 221b) of the vibrating unit 221 via the first adhesive layer 212 . For example, the first protective member 213 may be coupled or connected to the first surface (or the first electrode layer 221b) of the vibrating unit 221 by a laminating process via the first adhesive layer 212 . .

In the second vibration generator 230 , the second adhesive layer 214 may be disposed between the vibration unit 221 and the second protection member 215 . For example, the second adhesive layer 214 may be disposed between the second electrode layer 221c of the vibrating unit 221 and the second protection member 215 . The second protection member 215 may be disposed on the second surface (or the second electrode layer 221c) of the vibrating unit 221 via the second adhesive layer 214 . For example, the second protective member 215 may be coupled or connected to the second surface (or the second electrode layer 221c) of the vibrating unit 221 by a laminating process via the second adhesive layer 214 . .

In the second vibration generator 230 , the first adhesive layer 212 and the second adhesive layer 214 may be connected or coupled to each other between the first protective member 213 and the second protective member 215 . For example, in the second vibration generator 230 , the first adhesive layer 212 and the second adhesive layer 214 are connected to each other at an edge portion between the first protective member 213 and the second protective member 215 , or can be combined. Accordingly, in the second vibration generator 230 , the vibration unit 221 may be surrounded by the first adhesive layer 212 and the second adhesive layer 214 . For example, the first adhesive layer 212 and the second adhesive layer 214 may completely surround the vibration unit 221 of the second vibration generator 230 . For example, the first adhesive layer 212 and the second adhesive layer 214 may be represented by a cover member or the like, but is not limited thereto. When the first adhesive layer 212 and the second adhesive layer 214 are the cover member, the first protective member 213 is disposed on the first surface of the cover member, and the second protective member 215 is the second protective member 215 of the cover member. It can be placed on the side. For example, the first adhesive layer 212 and the second adhesive layer 214 are illustrated as the first adhesive layer 212 and the second adhesive layer 214 for convenience of description, and may be disposed as one adhesive layer.

In each of the first and second vibration generators 210 and 230 , each of the first adhesive layer 212 and the second adhesive layer 214 may include an electrically insulating material. For example, the electrically insulating material may be a material that has adhesive properties and can be compressed and restored. For example, at least one of the first adhesive layer 212 and the second adhesive layer 214 may include an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin. , but is not limited thereto.

At least one of the first vibration generator 210 and the second vibration generator 230 according to the embodiment of the present specification may further include a first power supply line PL1 and a second power supply line PL2 .

The first power supply line PL1 of one or more of the first vibration generator 210 and the second vibration generator 230 may extend long in the second direction Y, but is not limited thereto. The first power supply line PL1 may be disposed on the first protection member 213 and may be electrically connected to the first electrode layer 221b. For example, the first power supply line PL1 may be disposed on a rear surface of the first protection member 213 facing the first electrode layer 221b and may be electrically connected to the first electrode layer 221b. For example, the first power supply line PL1 may be disposed on the rear surface of the first protection member 213 directly facing the first electrode layer 221b and may be directly electrically connected to the first electrode layer 221b. For example, the first power supply line PL1 may be electrically connected to the first electrode layer 221b via an anisotropic conductive film. As another example, the first power supply line PL1 may be electrically connected to the first electrode layer 221b through a conductive material (or particles) contained in the first adhesive layer 212 .

For example, the first power supply line PL1 of one or more of the first vibration generator 210 and the second vibration generator 230 may protrude along the first direction X transverse to the second direction Y. It may include at least one or more first power lines. At least one first power line may extend from at least one of one side and the other side of the first power supply line PL1 along the second direction Y and be electrically connected to the first electrode layer 221b have. Accordingly, the at least one first power line may improve the uniformity of the vibration driving signal applied to the first electrode layer 221b.

One or more second power supply lines PL2 of the first vibration generator 210 and the second vibration generator 230 may be disposed on the second protection member 215 and may be electrically connected to the second electrode layer 221c. For example, the second power supply line PL2 may be disposed on the rear surface of the second protection member 215 facing the second electrode layer 221c and may be electrically connected to the second electrode layer 221c. For example, the second power supply line PL2 may be disposed on the rear surface of the second protection member 215 directly facing the second electrode layer 221c and may be directly electrically connected to the second electrode layer 221c. For example, the second power supply line PL2 may be electrically connected to the second electrode layer 221c via an anisotropic conductive film. As another example, the second power supply line PL2 may be electrically connected to the second electrode layer 221c through a conductive material (or particles) contained in the second adhesive layer 214 .

For example, one or more second power supply lines PL2 of the first vibration generator 210 and the second vibration generator 230 include at least one second power supply line protruding along the first direction X. can do. At least one second power line may extend from at least one of one side and the other side of the second power supply line PL2 along the first direction X and be electrically connected to the second electrode layer 221c have. At least one or more second power lines may overlap or overlap with at least one or more first power lines. Accordingly, the at least one second power line may improve the uniformity of the vibration driving signal applied to the second electrode layer 221c.

The pad part may be configured as described with reference to FIGS. 1 and 2 . The fed part may be electrically connected to a first portion (one or one end) of one or more of the first power supply line PL1 and the second power supply line PL2 . For example, the pad part may be disposed on a first edge portion of at least one of the first protective member 213 and the second protective member 215 . The pad part may be electrically connected to one or more first portions (one side or one end) of the first power supply line PL1 and the second power supply line PL2 .

The pad part is electrically connected to a first pad electrode electrically connected to a first portion (one or one end) of the first power supply line PL1 and a first portion (one or one end) of the second power supply line PL2. A second pad electrode may be included. For example, at least one of the first pad electrode and the second pad electrode may be exposed to a first edge portion of at least one of the first protection member 213 and the second protection member 215 .

For example, the pad unit may supply a vibration driving signal (or an acoustic signal) provided from the vibration driving circuit to the corresponding vibrating unit 221 . The vibration driving circuit (or sound processing circuit) may generate an alternating-current vibration driving signal including the first vibration driving signal and the second vibration driving signal based on the sound source. The first vibration driving signal is any one of a positive (+) vibration driving signal and a negative (-) vibration driving signal, and the second vibration driving signal is a positive (+) vibration driving signal and a negative (-) vibration driving signal. ) may be any one of the vibration driving signals. As an example, the first vibration driving signal may be supplied to the first electrode layer 221b of the vibration unit 221 through the first pad electrode and the first power supply line PL1 of the pad unit. The second vibration driving signal may be supplied to the second electrode layer 221c of the vibration unit 221 through the second pad electrode and the second power supply line PL2 of the pad unit. As another example, the first vibration driving signal may be supplied to the second electrode unit 211c of the vibrating unit 221 through the second pad electrode and the second power supply line PL2 of the pad unit. The second vibration driving signal may be supplied to the first electrode layer 221b of the vibration unit 221 through the first pad electrode and the first power supply line PL1 of the pad unit.

The connection member 250 according to the embodiment of the present specification may be disposed between the first vibration generator 210 and the second vibration generator 230 . For example, the connection member 250 may be disposed between the first protection member 213 of the first vibration generator 210 and the second protection member 215 of the second vibration generator 230 . For example, the connection member 250 may be formed of a material including an adhesive layer having excellent adhesion or adhesion to each of the plurality of vibration generators 210 and 230 . For example, the connecting member 250 may include a foam pad, a double-sided tape, or an adhesive. For example, the adhesive layer of the connecting member 250 may include, but is not limited to, epoxy, acryl, silicone, or urethane.

In FIG. 8 and related description, the vibration device 200 according to an embodiment of the present specification includes a first vibration generator 210 and a second vibration generator 230, and a first vibration generator 210 and a second vibration Although it has been described as including the connecting member 250 disposed between the generator 230, it is not limited thereto. For example, the vibrating device 200 according to the embodiment of the present specification may be configured according to the output characteristics and sound pressure characteristics of the sound generated according to the displacement of the display panel 100 based on the size and weight of the display panel 100 . It may include a plurality of (eg, three or more) vibration generators 210 and 230 , and a connection member 250 disposed between the plurality of vibration generators 210 and 230 . Even in this case, the plurality of vibration generators 210 and 230 may have the same size and overlap each other in order to maximize or increase the displacement amount or amplitude displacement of the vibration device 200 . For example, each of the first and second portions (end or outer surface or each corner portion) 210a, 230a of one or more vibration units 221 (or vibration layer 221a) among the plurality of vibration generators 210 and 230 ) may substantially overlap or overlap each other without crossing each other. For example, each of the first and second portions (end or outer surface or each corner portion) 210a, 230a of one or more vibration units 221 (or vibration layer 221a) among the plurality of vibration generators 210 and 230 ) may substantially overlap or overlap each other within the error range in the manufacturing process without crossing each other. For example, each of the first and second portions (end or outer surface or each corner portion) of each of the vibration units 221 (or vibration layer 221a) of the plurality of vibration generators 210 and 230 (210a, 230a) may be aligned with the virtual extension line VL or located on the virtual extension line VL. For example, each of the first and second portions (end or outer surface or each corner portion) of each of the vibration units 221 (or vibration layer 221a) of the plurality of vibration generators 210 and 230 (210a, 230a) may be precisely aligned with the virtual extension line VL or may be precisely positioned on the virtual extension line VL.

FIG. 9 is another cross-sectional view taken along the line II-II' shown in FIG. 4 .

4 and 9 , in the vibration device 200 according to another embodiment of the present specification, each of the first vibration generator 210 and the second vibration generator 230 includes at least one vibration module 210A, 210B. , 210C, 210D) or a plurality of vibration modules 210A, 210B, 210C, and 210D. 9 shows an example including four vibration modules, each of the first vibration generator 210 and the second vibration generator 230 according to the embodiment of the present specification may be configured of two or more vibration modules. .

Each of the plurality of vibration modules 210A, 210B, 210C, and 210D may be spaced apart from each other in the first direction X and the second direction Y, respectively, and may be electrically separated from each other.

Each of the plurality of vibration modules 210A, 210B, 210C, and 210D may vibrate by alternately repeating contraction and expansion due to a piezoelectric effect. For example, each of the plurality of vibration modules 210A, 210B, 210C, and 210D may be arranged or tiled at regular intervals along each of the first direction (X) and the second direction (Y). Accordingly, each of the first vibration generator 210 and the second vibration generator 230 in which the plurality of vibration modules 210A, 210B, 210C, and 210D are tiled is a vibration array, a vibration array unit, a vibration module array unit, and a vibration It may be an array structure, a tiling vibrating array, a tiling array module, or a tiling vibrating film, but is not limited to this term. Descriptions of the plurality of vibration modules 210A, 210B, 210C, and 210D are substantially the same as those described with reference to FIG. 4 , and thus the description may be omitted or briefly described.

Each of the first to fourth vibration modules 210A, 210B, 210C, and 210D according to the embodiment of the present specification may include a vibration unit 221 . The vibrating unit 221 may include a vibrating layer 221a, a first electrode layer 221b, and a second electrode layer 221c. Descriptions of the vibration layer 221a, the first electrode layer 221b, and the second electrode layer 221c are the same as those described with reference to FIGS. 4, 5, and 8, and thus the descriptions may be omitted or briefly described.

The vibration layer 221a may be formed of a ceramic-based material capable of realizing a relatively high vibration. For example, the vibration layer 221a may have a 1-3 composite having a piezoelectric characteristic of a 1-3 vibration mode or a 2-2 composite having a piezoelectric characteristic of a 2-2 vibration mode. For example, the vibrating layer 221a may include a first part 211a and a second part 211b in the same manner as the vibrating unit 211 described with reference to FIG. 4 or as the vibrating layer 211 described with reference to FIG. 6 . .

The first protective member 1213 according to the present specification may be disposed on the first surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D via the first adhesive layer 1212 . The second protection member 1215 may be disposed on the second surface of each of the first vibration generator 210 and the second vibration generator 230 . Since the first protection member 1213 and the second protection member 1215 are substantially the same as the first protection member 213 and the second protection member 215 described in FIGS. 4, 5, and 8, the description omit

The first adhesive layer 1212 may be disposed on a first surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D and between the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the first adhesive layer 1212 is disposed on the rear surface (or inner surface) of the first protection member 1213 facing the first surface of each of the first vibration generator 210 and the second vibration generator 230 . can be For example, the first adhesive layer 1212 is disposed on the first surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D and is filled between the plurality of vibration modules 210A, 210B, 210C, and 210D. can be

The second adhesive layer 1214 may be disposed on the second surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D and between the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the second adhesive layer 1214 is disposed on the front surface (or inner surface) of the second protection member 1215 facing the second surfaces of each of the first vibration generator 210 and the second vibration generator 230 . can be For example, the second adhesive layer 1214 is disposed on the second surface of each of the plurality of vibration modules 210A, 210B, 210C, and 210D and is filled between the plurality of vibration modules 210A, 210B, 210C, and 210D. can be The first adhesive layer 1212 and the second adhesive layer 1214 are substantially the same as the first adhesive layer 212 and the second adhesive layer 214 described with reference to FIGS. 4, 5, and 8 , and thus descriptions thereof will be omitted.

At least one of the first vibration generator 210 and the second vibration generator 230 according to another embodiment of the present specification may further include a first power supply line PL1 and a second power supply line PL2 .

The first power supply line PL1 may be disposed on the first protection member 1213 . For example, the first power supply line PL1 may be disposed on the rear surface of the first protection member 1213 facing the first surface of each of the first vibration generator 210 and the second vibration generator 230 . . The first power supply line PL1 may be electrically connected to the first electrode layer 221b of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the first power supply line PL1 may be electrically connected to the first electrode layer 221b of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the first power supply line PL1 may be directly electrically connected to the first electrode layer 221b of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. As an example, the first power supply line PL1 may be electrically connected to the first electrode layer 221b of each of the plurality of vibration modules 210A, 210B, 210C, and 210D via an anisotropic conductive film. As another example, the first power supply line PL1 is connected to the first electrode layer ( 221b) and may be electrically connected.

The first power supply line PL1 according to the present specification may include a 1-1 upper power supply line PL11 and a 1-2 th upper power supply line PL12 disposed along the second direction Y. For example, the 1-1 upper power line PL11 may be connected to the first and third vibration modules 210A and 210C parallel to the second direction Y among the plurality of vibration modules 210A, 210B, 210C, and 210D. (or the first group) may be electrically connected to each of the first electrode layers 221b. For example, the first and third vibration modules 210A and 210C may be disposed in a first row parallel to the second direction Y among the plurality of vibration modules 210A, 210B, 210C, and 210D. The 1-2-th upper power line PL12 is the second and fourth vibration modules 210B and 210D parallel to the first direction X among the plurality of vibration modules 210A, 210B, 210C, and 210D (or the second group) may be electrically connected to each of the first electrode layers 221b. For example, the second and fourth vibration modules 210B and 210D may be disposed in a second row parallel to the first direction X among the plurality of vibration modules 210A, 210B, 210C, and 210D.

The second power supply line PL2 may be disposed on the second protection member 1215 . For example. The second power supply line PL2 may be disposed on a first surface of the second protection member 1215 facing the second surface of each of the first vibration generator 210 and the second vibration generator 230 . For example, the first surface may be a lower surface of the second protection member 1215 . The second power supply line PL2 may be electrically connected to the second electrode layer 221c of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the second power supply line PL2 may be directly electrically connected to the second electrode layer 221c of each of the plurality of vibration modules 210A, 210B, 210C, and 210D. For example, the second power supply line PL2 may be electrically connected to the second electrode layer 221c of each of the plurality of vibration modules 210A, 210B, 210C, and 210D via an anisotropic conductive film. As another example, the second power supply line PL2 is connected to the second electrode layer of each of the plurality of vibration modules 210A, 210B, 210C, and 210D through the conductive material (or particles) contained in the second adhesive layer 1214 . It may be electrically connected to (221c).

The second power supply line PL2 according to the present specification may include 2-1 and 2-2 lower power lines PL21 and PL22 disposed in the second direction Y. For example, the 2-1 th lower power line PL21 may include first and third vibration modules 210A and 210C parallel to the second direction Y among the plurality of vibration modules 210A, 210B, 210C, and 210D. (or the first group) may be electrically connected to each of the second electrode layers 221c. For example, the first and third vibration modules 210A and 210C may be disposed in a first row parallel to the second direction Y among the plurality of vibration modules 210A, 210B, 210C, and 210D. 2-2 The lower power line PL22 is the second and fourth vibration modules 210B and 210D parallel to the second direction Y among the plurality of vibration modules 210A, 210B, 210C, and 210D (or the second group) may be electrically connected to each of the second electrode layers 221c. For example, the second and fourth vibration modules 210B and 210D may be disposed in a second row parallel to the second direction Y among the plurality of vibration modules 210A, 210B, 210C, and 210D.

As described with reference to FIGS. 4 and 5 , a pad part may be configured. The pad part may be electrically connected to the first power supply line PL1 and the second power supply line PL2 . For example, the pad part is electrically connected to at least one side (or one end) of at least one of the first power supply line PL1 and the second power supply line PL2 so as to be electrically connected to the first vibration generator 210 and the second vibration generator ( 230) may be disposed in each.

For example, the pad unit may include a first pad electrode electrically connected to one side of the first power supply line PL1 and a second pad electrode electrically connected to one side of the second power supply line PL2 .

The first pad electrode may be commonly connected to one side (or one end) of each of the 1-1 and 1-2 upper power lines PL11 and PL12 of the first power supply line PL1 . For example, one side (or one end) of each of the 1-1 and 1-2 upper power lines PL11 and PL12 may be branched from the first pad electrode.

The second pad electrode may be commonly connected to one side (or one end) of each of the 2-1 and 2-2 lower power lines PL21 and PL22 of the second power supply line PL2 . For example, one side (or one end) of each of the 2-1 and 2-2 lower power lines PL21 and PL22 may be branched from the second pad electrode. For example, the pad unit may supply a vibration driving signal provided from the vibration driving circuit to each of the first vibration generator 210 and the second vibration generator 230 .

According to the present specification, at least one of the first power supply line PL1 , the second power supply line PL2 , and the pad part is made of a transparent conductive material, a translucent conductive material, or an opaque conductive material so as to be transparent, translucent, or opaque. can be done

Accordingly, in the vibration device 200 according to another embodiment of the present specification, each of the first vibration generator 210 and the second vibration generator 230 is not driven independently, but is implemented as a single vibrating body at regular intervals D1, By including a plurality of vibration modules 210A, 210B, 210C, and 210D arranged (or tiled) in D2), a vibrating body of a large area according to the single vibration of the plurality of vibration modules 210A, 210B, 210C, 210D can be driven For example, the plurality of vibration modules 210A, 210B, 210C, and 210D may be one single vibrating body arranged (or tiled) at regular intervals D1 and D2. Accordingly, since the entire area of the display panel can be vibrated or vibrated over a large area by itself, the acoustic characteristics and the sound pressure characteristics in the reproduction band and the low-pitched band of the sound output from the display panel can be increased or improved, respectively. .

FIG. 10 is a view showing the vibrating unit shown in FIG. 8 .

Referring to FIG. 10 , the vibration layer 221a according to the present specification may include a plurality of first portions 221a1 and a plurality of second portions 221a2 . For example, the plurality of first portions 221a1 and the plurality of second portions 221a2 may be alternately and repeatedly disposed along the second direction Y (or the first direction X). For example, the first direction X may be a horizontal direction of the vibration layer 221a, and the second direction Y may be a vertical direction of the vibration layer 221a crossing the first direction X, and thus not limited For example, the first direction X may be a longitudinal direction of the vibration layer 221a, and the second direction Y may be a horizontal direction of the vibration layer 221a.

Each of the plurality of first portions 221a1 may be formed of an inorganic material portion. The inorganic material part may include the above-mentioned material. For example, since each of the plurality of first parts 221a1 may be made of substantially the same material as the vibrating part 211 described with reference to FIGS. 6A to 6F , a redundant description thereof will be omitted.

Each of the plurality of first portions 221a1 according to the present specification may be disposed between the plurality of second portions 221a2. The plurality of first portions 221a1 and the plurality of second portions 221a2 have substantially the same contents as the plurality of first portions 211a and the plurality of second portions 211b described with reference to FIGS. 5A to 5F , so this A duplicate description will be omitted.

The vibrating unit 221 of the first vibration generator 210 and the vibrating unit 221 of the second vibration generator 230 have the same size in order to maximize or increase the displacement amount or amplitude displacement of the vibration device 200 . and may overlap each other. For example, each first portion (end or outer surface or each corner portion) 210a of the vibrating unit 221 (or the vibrating layer 221a) of the first vibration generator 210 is formed by the second vibration generator 230 ) of the vibrating part 221 (or the vibrating layer 221a) may be substantially aligned or overlapped with each second part (end or outer surface or each corner part) 230a. For example, each first portion (end or outer surface or each corner portion) 210a of the vibrating unit 221 (or the vibrating layer 221a) of the first vibration generator 210 is formed by the second vibration generator 230 ) of the vibrating part 221 (or the vibrating layer 221a) to be substantially aligned or overlapped within the error range in the manufacturing process without crossing each second part (end or outer surface or each corner part) 230a can For example, each first part (end or outer surface or each corner part) 210a of the vibrating part 221 (or the vibrating layer 221a) of the first vibration generator 210 is a virtual first extension line ( It may be aligned with VL1 or located on the first extension line VL1. Each first part (end or outer surface or each corner part) 210a of the vibrating part 221 (or the vibrating layer 221a) of the first vibration generator 210 is exactly on the imaginary first extension line VL1. It may be aligned or may be precisely positioned on the first extension line VL1 . Each second portion (end or outer surface or each corner portion) 230a of the vibrating unit 221 (or vibrating layer 221a) of the second vibration generator 230 is aligned with the first extension line VL1 or 1 may be located on the extension line VL1. For example, each second portion (end or outer surface or each corner portion) 230a of the vibrating unit 221 (or the vibrating layer 221a) of the second vibration generator 230 is connected to the first extension line VL1. may be precisely aligned with the , or may be precisely positioned on the first extension line VL1.

According to the present specification, the plurality of first portions 221a1 of the first vibration generator 210 substantially overlap or overlap with each other while having the same size as the plurality of first portions 221a1 of the second vibration generator 230 . can be For example, the plurality of first portions 221a1 of the first vibration generator 210 have the same size as the plurality of first portions 221a1 of the second vibration generator 230 and substantially overlap each other without crossing each other. may be lost or overlapped. According to the present specification, the first portion (end or outer surface or each corner portion) of each of the plurality of first portions 221a1 of the first vibration generator 210 is a plurality of first portions of the second vibration generator 230 . (221a1) Each of the first portion (end or outer surface or each corner portion) may be substantially overlapped or overlapped with each other. For example, a first portion (end or outer surface or each corner portion) of each of the plurality of first portions 221a1 of the first vibration generator 210 is a plurality of first portions ( 221a1) Each of the first portions (end or outer surface or each corner portion) may be substantially overlapped or overlapped without crossing each other. For example, a first portion (end or outer surface or each corner portion) of each of the plurality of first portions 221a1 of the first vibration generator 210 is a plurality of first portions ( 221a1) may be aligned with each of the first portion (end or outer surface or each corner portion) and the second extension line VL2 or located on the second extension line VL2. For example, a first portion (end or outer surface or each corner portion) of each of the plurality of first portions 221a1 of the first vibration generator 210 is a plurality of first portions ( 221a1) Each of the first portions (end or outer surface or each corner portion) may be accurately aligned with the second extension line VL2 without crossing each other or may be accurately positioned on the second extension line VL2.

According to the present specification, the plurality of second portions 221a2 of the first vibration generator 210 substantially overlap or overlap with each other while having the same size as the plurality of second portions 221a2 of the second vibration generator 230 . can be For example, the plurality of second portions 221a2 of the first vibration generator 210 substantially overlap each other without crossing each other while having the same size as the plurality of second portions 221a2 of the second vibration generator 230 . may be lost or overlapped. According to the present specification, a first portion (end or outer surface or each corner portion) of each of the plurality of second portions 221a2 of the first vibration generator 210 is a plurality of second portions of the second vibration generator 230 . (221a2) Each of the first portion (end or outer surface or each corner portion) may be substantially overlapped or overlapped with each other. For example, a first portion (end or outer surface or each corner portion) of each of the plurality of second portions 221a2 of the first vibration generator 210 is a plurality of second portions ( 221a2) Each of the first portions (end or outer surface or each corner portion) may be substantially overlapped or overlapped without crossing each other. For example, a first portion (end or outer surface or each corner portion) of each of the plurality of second portions 221a2 of the first vibration generator 210 is a plurality of second portions ( 221a2) may be aligned with each of the first portion (end or outer surface or each corner portion) and the second extension line VL2 or located on the second extension line VL2. For example, a first portion (end or outer surface or each corner portion) of each of the plurality of second portions 221a2 of the first vibration generator 210 is a plurality of second portions ( 221a2) Each of the first portions (end or outer surface, or each corner portion) may be accurately aligned with the second extension line VL2 without crossing each other or may be precisely positioned on the second extension line VL2 . Accordingly, in the vibration device 200 according to the present specification, as the vibration layer 221a of the first vibration generator 210 and the vibration layer 221a of the second vibration generator 230 are displaced in the same direction, the displacement amount or amplitude displacement is This may be maximized or increased, thereby increasing (or maximizing) the displacement amount (or bending force) or amplitude displacement of the display panel 100 .

In FIG. 10 and related descriptions, it has been described that the vibration device 200 according to another embodiment of the present specification includes the first and second vibration generators 210 and 230, but is not limited thereto. For example, the vibration device 200 according to another embodiment of the present specification may include a plurality of (eg, three or more) vibration generators 210 and 230 . Even in this case, the plurality of vibration generators 210 and 230 may have the same size and overlap each other in order to maximize or increase the displacement amount or amplitude displacement of the vibration device 200 . According to the present specification, the first part 221a1 of the vibration generator 210 disposed on the upper layer (or the upper layer) among the three or more vibration generators 210 and 230 and the lower layer among the three or more vibration generators 210 and 230 ( Alternatively, the first portions 221a1 of the vibration generator 230 disposed on the lower layer may substantially overlap or overlap each other. For example, the first part 221a1 of the vibration generator 210 disposed in the upper layer among the three or more vibration generators 210 and 230 and the vibration generator disposed in the lower layer among the three or more vibration generators 210 and 230 ( The first portions 221a1 of the 230 may substantially overlap or overlap each other without crossing each other. For example, the first part 221a1 of the vibration generator 210 disposed in the upper layer among the three or more vibration generators 210 and 230 and the first part 221a1 of the vibration generator 230 disposed in the lower layer are virtual. It may be aligned with the extension line VL of , or may be located on the virtual extension line VL. For example, the first part 221a1 of the vibration generator 210 disposed in the upper layer among the three or more vibration generators 210 and 230 and the first part 221a1 of the vibration generator 230 disposed in the lower layer are virtual. It may be precisely aligned with the extension line VL of In addition, the second part 221a2 of the vibration generator 210 disposed in the upper layer among the three or more vibration generators 210 and 230 and the vibration generator 230 disposed in the lower layer among the three or more vibration generators 210 and 230 The second portions 221a2 of the may substantially overlap or overlap each other. For example, the second part 221a2 of the vibration generator 210 disposed in the upper layer among the three or more vibration generators 210 and 230 and the vibration generator disposed in the lower layer among the three or more vibration generators 210 and 230 ( The second portions 221a2 of the 230 may substantially overlap or overlap each other without crossing each other. For example, of the three or more vibration generators 210 and 230 , the second part 221a2 of the vibration generator 210 disposed in the upper layer and the second part 221a2 of the vibration generator 230 disposed in the lower layer are virtual. It may be aligned with the extension line VL of , or located on the virtual extension line VL. For example, of the three or more vibration generators 210 and 230 , the second part 221a2 of the vibration generator 210 disposed in the upper layer and the second part 221a2 of the vibration generator 230 disposed in the lower layer are virtual. It may be precisely aligned with the extension line VL of

11 is a diagram illustrating an apparatus according to another embodiment of the present specification. 12 is a cross-sectional view taken along line III-III' shown in FIG. 11 .

11 and 12 , in the device according to another exemplary embodiment of the present specification, the rear surface (or rear surface) of the display panel 100 includes a first area (or first rear area) A1 and a second area (or the second rear area) A2 . For example, on the rear surface of the display panel 100 , the first area A1 may be the left rear area, and the second area A2 may be the right rear area. The first area A1 and the second area A2 may be symmetrical with respect to the middle line CL of the display panel 100 when viewed in the first direction X as a reference, and limited thereto not. For example, each of the first area A1 and the second area A2 may overlap the display area of the display panel 100 .

The vibrating device 200 according to another embodiment of the present specification may include a first vibrating device 210 - 1 and a second vibrating device 210 - 2 disposed on the rear surface of the display panel 100 .

The first vibrating device 210-1 may be disposed in the first area A1 of the display panel 100 . For example, the first vibrating device 210-1 may be disposed to be biased toward the center or the edge in the first area A1 of the display panel 100 when the first direction X is the reference. have. The first vibrating device 210-1 according to the present specification vibrates the first area A1 of the display panel 100 to generate a first vibrating sound PVS1 in the first area A1 of the display panel 100 . or generate the first haptic feedback. For example, the first vibrating device 210-1 according to the present specification directly vibrates the first area A1 of the display panel 100 so that the first area A1 of the display panel 100 is subjected to the first vibration. A vibration sound PVS1 may be generated or a first haptic feedback may be generated. For example, the first vibration sound PVS1 may be a left sound. The size of the first vibrating device 210-1 according to the present specification is less than or equal to half the size of the first region A1 or more than half of the size of the first vibrating sound PVS1 or acoustic characteristics required for the device. can have size. As another example, the size of the first vibrating device 210-1 may have a size corresponding to the first area A1 of the display panel 100 . For example, the first vibrating device 210-1 may have the same size as the first area A1 of the display panel 100 or may have a smaller size than the first area A1.

The second vibrating device 210 - 2 may be disposed in the second area A2 of the display panel 100 . For example, the second vibrating device 210 - 2 may be disposed to be biased toward the center or the edge in the second area A2 of the display panel 100 with respect to the first direction X. have. The second vibrating device 210 - 2 according to the present specification directly vibrates the second area A2 of the display panel 100 to generate the second vibration sound PVS2 in the second area A2 of the display panel 100 . ) or generate a second haptic feedback. For example, the second vibrating device 210 - 2 according to the present specification directly vibrates the second area A2 of the display panel 100 in the second area A2 of the display panel 100 . A vibration sound PVS2 may be generated or a second haptic feedback may be generated. For example, the second vibration sound PVS2 may be a left sound. The size of the second vibrating device 210 - 2 according to the present specification is less than or equal to half the size of the second area A2 or more than half, depending on the characteristics of the second vibrating sound PVS2 or acoustic characteristics required for the device. can have size. As another example, the size of the second vibrating device 210 - 2 may correspond to the size of the second area A2 of the display panel 100 . For example, the size of the second vibrating device 210 - 2 may be the same as that of the second area A2 of the display panel 100 or may have a size smaller than that of the second area A2 . Accordingly, the first and second vibrating devices 210-1 and 210-2 may have the same size or different sizes depending on the left and right acoustic characteristics of the device and/or the acoustic characteristics of the device. In addition, the first and second vibrating devices 210-1 and 210-2 may be arranged in a left-right symmetrical or left-right asymmetrical structure with respect to the middle line CL of the display panel 100 .

Since each of the first vibrating device 210 - 1 and the second vibrating device 210 - 2 may include one or more of the vibrating devices 200 described with reference to FIGS. 2 to 5 , a redundant description thereof will be omitted.

The connection member 150 according to the present specification may be disposed between each of the first vibrating device 210-1 and the second vibrating device 210-2 and the rear surface of the display panel 100 . For example, each of the first vibrating device 210 - 1 and the second vibrating device 210 - 2 may be disposed on the rear surface of the display panel 100 via the connecting member 150 . Since the connecting member 150 is substantially the same as the connecting member 150 described in FIG. 2 , a redundant description thereof will be omitted.

The device according to the embodiment of the present specification may include a plurality of holes 301 . For example, the plurality of holes 301 may overlap each of the first vibrating device 210 - 1 and the second vibrating device 210 - 2 . Since the description of the hole 301 is the same as or similar to that described in FIG. 3 , a description thereof will be omitted.

Accordingly, the device according to another embodiment of the present specification generates the left sound PVS1 and the right sound PVS2 through the first vibrating device 210 - 1 and the second vibrating device 210 - 2 to the display panel 100 . It is possible to provide a sound to the user by outputting it to the front of the . In addition, since the hole 301 is formed in the support member 300 , it is possible to provide a device capable of improving the acoustic characteristics and/or the up pressure characteristics of the low-pitched range.

FIG. 13 is another cross-sectional view taken along line III-IIII' shown in FIG. 11 . FIG. 13 is an additional configuration of a plate to the device shown in FIG. 12 . Accordingly, hereinafter, redundant descriptions of components other than the plate and related components will be omitted or simplified.

Referring to FIG. 13 , an apparatus according to another exemplary embodiment of the present specification includes a display panel 100 and a vibrating device 200 , and a plate 170 disposed between the display panel 100 and the vibrating device 200 . may further include.

Since each of the display panel 100 and the vibrating device 200 is substantially the same as each of the display panel 100 and the vibrating device 200 described with reference to FIGS. 2 to 5 , a redundant description thereof will be omitted or simplified.

The plate 170 may be disposed between each of the first vibrating device 210 - 1 and the second vibrating device 210 - 2 of the vibrating device 200 and the rear surface of the display panel 100 .

The plate 170 dissipates heat generated by the display panel 100 or is disposed on or hung on the rear surface of the display panel 100 for each of the first vibrating device 210-1 and the second vibrating device 210-2. Mass can be reinforced. The plate 170 may have the same shape and size as the rear surface of the display panel 100 or may have the same shape and size as that of the vibrating device 200 . As another example, the plate 170 may have a size different from that of the display panel 100 . For example, the plate 170 may be smaller than the size of the display panel 100 . As another example, the plate 170 may have a size different from that of the vibrating device 200 . For example, the plate 170 may be larger or smaller than the size of the vibrating device 200 . The vibrator 200 may be the same as or smaller than the size of the display panel 100 .

The plate 170 according to the present specification may be made of a metal material. For example, the plate 170 may be made of any one or more of stainless steel, aluminum (Al), magnesium (Mg) alloy, magnesium lithium (Mg-Li) alloy, and aluminum (Al) alloy. and is not limited thereto.

The plate 170 according to the present specification may include a plurality of openings. The plurality of openings may be configured to have a predetermined size and a predetermined interval. For example, the plurality of openings may be formed along the first direction (X) and the second direction (Y) to have a predetermined size and a predetermined interval. Each of the plurality of openings minimizes the loss of vibration by the plate 170 by allowing sound waves (or sound pressure) according to the vibration of the vibrating device 200 to be concentrated on the display panel 100 without being dispersed by the plate 170 . The sound pressure characteristic of the sound generated according to the vibration of the display panel 100 may be increased. For example, the plate 170 including the plurality of openings may have a mesh shape. For example, the plate 170 including the plurality of openings may be a mesh plate.

According to the present specification, the plate 170 may be connected to or coupled to the rear surface of the display panel 100 . The plate 170 may dissipate heat generated by the display panel 100 . For example, the plate 170 may be expressed as a heat dissipation member, a heat dissipation plate, or a heat sink, and the term is not limited thereto.

According to the present specification, the plate 170 may reinforce the mass of the vibrating device 200 disposed on or suspended on the rear surface of the display panel 100 . Accordingly, the plate 170 may reduce the resonance frequency of the vibrating device 200 according to an increase in the mass of the vibrating device 200 . Accordingly, the plate 170 may increase the acoustic characteristics of the low-pitched range and the sound pressure characteristics of the low-pitched range generated in association with the vibration of the vibrating device 200 , and improve the flatness of the acoustic characteristics. Here, the flatness of the acoustic characteristics may be the magnitude of the deviation between the highest sound pressure and the lowest sound pressure. For example, the plate 170 may be expressed as a weight member, a mass member, or an acoustic planarization member, and is not limited thereto.

According to the present specification, the amount of displacement (or bending force) or amplitude displacement (or vibration width) of the display panel 100 on which the plate 170 is disposed increases as the thickness of the plate 170 increases due to the rigidity of the plate 170 . can decrease. Accordingly, the low-pitched sound characteristics and sound pressure characteristics of the sound generated according to the displacement (or vibration) of the display panel 100 may be deteriorated.

The plate 170 according to the present specification may be coupled or connected to the rear surface of the display panel 100 via a connection member (or a fourth connection member) 190 .

The connection member 190 according to the present specification may include an adhesive layer having excellent adhesion or adhesion to the rear surface of the display panel 100 and the vibration device 200, respectively. For example, the connecting member 190 may include a foam pad, a double-sided tape, or an adhesive. For example, the adhesive layer of the connecting member 190 may include, but is not limited to, epoxy, acryl, silicone, or urethane. For example, the adhesive layer of the connecting member 190 may be the same as the adhesive layer of the connecting member 150 , but is not limited thereto. For example, the adhesive layer of the connecting member 190 is an acryl-based adhesive layer having relatively excellent adhesion and high hardness among acrylic and urethane so that the vibration of the vibrating device 200 can be transmitted to the display panel 100 well. may include a material (or material) of As another example, the adhesive layer of the connecting member 190 may be configured differently from the adhesive layer of the connecting member 150 .

The vibrating device 200 may be supported or suspended on the rear surface of the plate 170 by being connected or coupled to the rear surface of the plate 170 via the above-described connecting member 150 . Each of the first vibrating device 210-1 and the second vibrating device 210-2 of the vibrating device 200 is connected to or coupled to the rear surface of the plate 170 via the above-described connecting member 150, thereby forming a plate ( 170) can be supported or hung on the back.

The plate 170 according to the present specification may be integrated with the vibrating device 200 or included in the configuration of the vibrating device 200 . For example, the plate 170 and the vibrating device 200 may be configured as one structure or one component (or module) made of one body. Accordingly, when the plate 170 is disposed between the rear surface of the display panel 100 and the vibrating device 200 , the display panel 100 is unified (or modularized) between the plate 170 and the vibrating device 200 . ) and the assembly process between the vibrating device 200 may be easy.

As another example, when the plate 170 and the vibrating device 200 are composed of one structure or one component (or module) including one body, the non-display panel may be configured as a vibration plate. The plate 170 and the vibrator 200 may be disposed on the non-display panel. The plate 170 and the vibrating device 200 may be coupled or connected via the connecting member 150 . For example, the plate 170 may be wood, plastic, glass, cloth, an interior material of an automobile, a ceiling, an aircraft, or the like, but is not limited thereto. Accordingly, sound can be output by vibrating the non-display panel. As another example, when the plate 170 and the vibrating device 200 are composed of one structure or one component (or module) composed of one body, the plate 170 may be configured as a vibrating plate. For example, the plate 170 may be made of any one or more of stainless steel, aluminum (Al), magnesium (Mg) alloy, magnesium lithium (Mg-Li) alloy, and aluminum (Al) alloy. and is not limited thereto. For example, in the module (or structure) of the plate 170 and the vibrating device 200, the plate 170 may be made of any one or more single non-metallic or composite non-metallic materials of wood, plastic, glass, cloth, and leather. and is not limited thereto.

Accordingly, the device according to another embodiment of the present specification generates the left sound PVS1 and the right sound PVS2 through the first vibrating device 210 - 1 and the second vibrating device 210 - 2 to the display panel 100 . It is possible to provide a sound to the user by outputting it to the front of the . In addition, the resonant frequency of the vibrating device 200 may be reduced by the plate 170 , and heat of the display panel 100 may be dissipated.

Fig. 14 is another cross-sectional view taken along line III-III' shown in Fig. 11 . FIG. 15 is another cross-sectional view taken along line III-III' shown in FIG. 11 . FIG. 15 is an additional configuration of a plate to the device shown in FIG. 14 .

14 and 15 , in the vibrating device 200 according to another exemplary embodiment of the present specification, a first vibrating device 220-1 and a second vibrating device 220- are disposed on the rear surface of the display panel 100 . 2) may be included. Each of the first vibrating device 220-1 and the second vibrating device 220-2 may include one or more of the vibrating devices 200 described with reference to FIGS. 6 to 10 . Each of the display panel 100 and the vibrating device 200 is substantially the same as each of the display panel 100 and the vibrating device 200 described with reference to FIGS. 6 to 10 , and thus a redundant description thereof will be omitted or simplified. Since the description of the hole 301 is substantially the same as that of FIG. 3 , the description thereof will be omitted or simplified. Since the description of the plate 170 is substantially the same as that described with reference to FIG. 13 , the description thereof will be omitted or simplified.

The vibration device 200 according to the present specification includes a plurality of vibration generators 210 and 230 overlapping each other while having a first size, thereby minimizing a decrease in the amount of displacement of the display panel 100 according to the thickness of the plate 170 . have. In addition, the vibration device 200 according to the present specification has a plurality of vibration generators 210 and 230 overlapping each other having a first size, thereby increasing or maximizing the amount of displacement of the display panel 100 to increase or decrease the display panel 100 . It is possible to increase or improve the low-pitched sound characteristics and sound pressure characteristics of the sound generated according to the displacement of the . Accordingly, in the device according to another exemplary embodiment of the present specification, the vibration device 200 increases the displacement amount of the display panel 100 on which the plate 170 is disposed due to the stacked structure of the vibration generators 210 and 230 overlapping each other. can be made or maximized. The plate 170 may have a thickness capable of smoothly dissipating heat of the display panel 100 .

The plate 170 according to the embodiment of the present specification may be connected to or coupled to the front surface of the vibrating device 200 via the aforementioned connecting member 150 . For example, the plate 170 may be connected to or coupled to the uppermost vibration generator among the plurality of vibration generators 210 and 230 of the vibration device 200 via the connecting member 150 . For example, when the vibration device 200 has the first and second vibration generators 210 and 230 , the plate 170 is a first surface of the second vibration generator 230 via the connecting member 150 . Alternatively, it may be connected to or coupled to the second surface of the first vibration generator 210 .

Accordingly, in the device according to another exemplary embodiment of the present specification, as described with reference to FIGS. 7 to 10 , the low sound of the sound generated according to the displacement of the display panel 100 due to the stacked structure of the vibration generators 210 and 230 . It is possible to increase or improve the historical characteristics and sound pressure characteristics. In addition, in the device according to another exemplary embodiment of the present specification, the resonance frequency of the vibrating device 200 may be reduced by the plate 170 , and heat of the display panel 100 may be dissipated. In addition, since the hole 301 is formed in the support member 300 , it is possible to provide a device capable of improving the acoustic characteristics and/or the up pressure characteristics of the low-pitched range.

16 is a diagram illustrating an apparatus according to another embodiment of the present specification. FIG. 16 is another cross-sectional view taken along line III-III' shown in FIG. 11 . FIG. 16 is an example in which a partition is additionally configured in the device shown in FIGS. 11 to 13 . Accordingly, hereinafter, redundant descriptions of components other than the partition and related components will be omitted or simplified. The description of the partition may be equally applied to the devices of FIGS. 14 and 15 .

Referring to FIG. 16 , the device according to another exemplary embodiment of the present specification may further include a partition disposed between the rear surface of the display panel 100 and the support member 300 .

The partition according to the embodiment of the present specification further includes a first partition member 610 and a second partition member 620 disposed between the first vibrating device 210-1 and the second vibrating device 210-2. can do.

According to the present specification, the third partition member 630 may be disposed to surround the entire first vibrating device 210 - 1 and the second vibrating device 210 - 2 . The fourth partition member 640 (or the first enclosure) may surround the first vibrating device 210 - 1 . The fifth partition member 650 (or the second enclosure) may surround the second vibrating device 210 - 2 . Partitions will be described later with reference to FIG. 17 .

According to the present specification, the plurality of holes 301 may be disposed inside the partition member. For example, the plurality of holes 301 may be disposed inside one or more of the third partition member 630 and the fourth partition member 640 . For example, the plurality of holes 301 may be disposed along an inner edge of at least one of the third partition member 630 and the fourth partition member 640 . For example, the plurality of holes 301 may be disposed inside one or more of the third partition member 630 and the fifth partition member 650 . For example, the plurality of holes 301 may be disposed along an inner edge of at least one of the third partition member 630 and the fifth partition member 650 . For example, the plurality of holes 301 includes a fourth partition member 640 (a first enclosure) surrounding the first vibrating device 210 - 1 and a fifth enclosing the second vibrating device 210 - 2 . The partition member 650 (the second enclosure) may be included, and the plurality of holes 301 may be disposed inside each of the fourth partition member 640 and the fifth partition member 650 .

For example, the fourth partition member 640 and the fifth partition member 650 may be disposed between the rear surface of the display panel 100 and the first support member 310 . The first support member 310 may facilitate adhesion of the fourth partition member 640 and the fifth partition member 650 disposed on the display panel 100 . As another example, the first support member 310 may be omitted.

For example, the first partition member 610 may be disposed between the first vibrating device 210 - 1 and the second vibrating device 210 - 2 . For example, the second partition member 620 may be disposed between the first vibrating device 210 - 1 and the second vibrating device 210 - 2 . The first partition member 610 and the second partition member 620 may be disposed between the rear surface of the display panel 100 and the first support member 310 . The first support member 310 may facilitate adhesion of the first partition member 610 and the second partition member 620 disposed on the display panel 100 . As another example, the first support member 310 may be omitted.

17 is a diagram illustrating an apparatus according to another embodiment of the present specification. FIG. 17 is an additional configuration of a partition in the device shown in FIGS. 2 to 5, 7, and 11 to 13 . Accordingly, hereinafter, redundant descriptions of components other than the partition and related components will be omitted or simplified. The description of the partition may be equally applied to the devices of FIGS. 8 to 10 , 14 , and 15 .

11, 12, 13, and 17 , in the device according to another exemplary embodiment of the present specification, a partition dividing the first area A1 and the second area A2 of the display panel 100 ( 600) may be further included.

When the display panel 100 vibrates by the first vibrating device 210-1 and the second vibrating device 210-2, the partition 600 has an air gap in which the sounds PVS1 and PVS2 are generated. ) or space. For example, the partition 600 can separate the sound (PVS1, PVS2) or separate channels, and can prevent or reduce the degradation of the characteristics of the sound (PVS1, PVS2) due to the interference of the sound (PVS1, PVS2). . The partition 600 may be expressed as a sound blocking member, a sound separating member, a space separating member, an enclosure, or a baffle, but is not limited thereto.

The partition 600 according to the embodiment of the present specification is a first partition member 610 and a second partition member 620 disposed between the first vibrating device 210-1 and the second vibrating device 210-2. may further include.

The first partition member 610 and the second partition member 620 may be disposed between the display panel 100 and the support member 300 . For example, the first partition member 610 and the second partition member 620 may be disposed between the display panel 100 and the second support member 330 . For example, the first partition member 610 and the second partition member 620 may be disposed between the display panel 100 and the support member 300 corresponding to the middle region of the display panel 100 . The first partition member 610 and the second partition member 620 are generated by the first vibrating sound PVS1 generated by the first vibrating device 210-1 and the second vibrating device 210-2. The second vibration sound PVS2 may be separated. For example, in the first partition member 610 and the second partition member 620 , the vibration generated in the first area A1 of the display panel 100 by the first vibrating device 210-1 is the display panel. Blocking transmission to the second area A2 of 100 or vibration generated in the second area A2 of the display panel 100 by the second vibrating device 210 - 2 of the display panel 100 Transmission to the first area A1 may be blocked. Accordingly, the first partition member 610 and the second partition member 620 attenuate or absorb the vibration of the display panel 100 in the center of the display panel 100 , so that the sound in the first area A1 is produced. Transmission to the second area A2 or the sound from the second area A2 may be blocked from being transmitted to the first area A1 . Accordingly, the first partition member 610 and the second partition member 620 may further improve the sound output characteristics of the device by separating the left and right sounds. As a result, the device according to the embodiment of the present specification generates a sound including a two-channel type sound of the display panel 100 by separating left and right sounds according to the first partition member 610 and the second partition member 620 . It can be printed forward.

For example, the partition 600 may be made of a material having elasticity that can be compressed to a certain degree. For example, the partition 600 may be made of a polyurethane (polyurethane) or polyolefin (polyolefin) material, but is not limited thereto. As another example, the partition 600 may be formed of a single-sided tape, a single-sided foam tape, a double-sided tape, or a double-sided foam tape.

For example, any one of the first partition member 610 and the second partition member 620 may be omitted. Even in this case, as any one of the first partition member 610 and the second partition member 620 is disposed between the first vibrating device 210-1 and the second vibrating device 210-2, left and right acoustics can be separated. For example, when the second partition member 620 of the first partition member 610 and the second partition member 620 is omitted, the first partition member 610 is formed on the rear middle line ( CL), and may be disposed between the display panel 100 and the support member 300 .

Accordingly, by separating the left and right sounds by the first partition member 610 and the second partition member 620 , the sound output characteristics of the device can be further improved, and the first partition member 610 or the second partition member 620 . ), the device including the first partition member 610 or the second partition member 620 may output a sound including a two-channel type sound to the front of the display panel 100 by separating left and right sounds according to the partition member 620 . .

The partition 600 according to the embodiment of the present specification may further include a third partition member 630 disposed between the display panel 100 and the support member 300 .

The third partition member 630 may be disposed to surround the entire first vibrating device 210 - 1 and the second vibrating device 210 - 2 . For example, the third partition member 630 may be disposed along between the rear edge of the display panel 100 and the front edge of the support member 300 . The third partition member 630 may be expressed as an edge partition, a sound blocking member, an edge enclosure, or an edge baffle, but is not limited thereto. For example, the third partition member 630 may be disposed adjacent to or in contact with the first connection member 401 illustrated in FIGS. 12 to 16 , and may be surrounded by the first connection member 401 . As another example, the third partition member 630 may be implemented as a single body with the first connecting member 401 .

The third partition member 630 includes first to third air gaps AG1 and AG2 between the display panel 100 and the support member 300 together with the first partition member 610 and the second partition member 620 , AG3) can be prepared. For example, each of the first to third air gaps AG1 , AG2 , and AG3 may be expressed as a vibration space, a sound pressure space, an Woollimtong, an Ulrimbu, a Gongmyeongtong, or a resonance part, but is not limited thereto.

The first air gap AG1 may be provided in the first area A1 of the display panel 100 . For example, the first air gap AG1 is a display panel surrounded by a first partition member 610 and a third partition member 630 disposed in the first area A1 of the display panel 100 . It may be provided in the first area A1 of 100).

The second air gap AG2 may be provided in the second area A2 of the display panel 100 . For example, the second air gap AG2 is a display panel surrounded by the second partition member 620 and the third partition member 630 disposed in the second area A2 of the display panel 100 . It may be provided in the second area A2 of 100).

The third air gap AG3 may be provided in the middle region of the rear surface of the display panel 100 . For example, the third air gap AG3 may be provided in the middle region of the rear surface of the display panel 100 surrounded by the first and second partition members 610 and 620 and the third partition member 630 . have. For example, the third air gap AG3 may be provided between the first air gap AG1 and the second air gap AG2 including the rear middle line CL of the display panel 100 . The third air gap AG3 may be expressed as a sound separation space, a sound shielding space, or a sound interference prevention space, but is not limited thereto. The third air gap AG2 separates the first air gap AG1 and the second air gap AG2 in a predetermined frequency band generated in each of the first air gap AG1 and the second air gap AG2. A resonance phenomenon or an interference phenomenon can be prevented.

The first vibrating device 210-1 may be surrounded by the third partition member 630 providing the first air gap AG1 and the first partition member 610 . The second vibrating device 210 - 2 may be surrounded by the third partition member 630 providing the second air gap AG2 and the first partition member 610 .

When any one of the first partition member 610 and the second partition member 620 is omitted, the third air gap AG3 may be omitted.

Accordingly, the third partition member 630 surrounds between the display panel 100 and the support member 300 , and together with the first partition member 610 and the second partition member 620 , the first vibrating device 210 - 1) and the second vibrating device 210-2, respectively, by enclosing each of the first vibrating device 210-1 and the second vibrating device 210-2, each vibration space can be secured, so that the left and right sound can increase the sound pressure characteristics of And, the third partition member 630 may block the external leakage of sound or sound pressure through the side surface between the display panel 100 and the support member 300, thereby further improving the sound output characteristics of the device. .

The partition 600 according to the embodiment of the present specification may further include a fourth partition member 640 and a fifth partition member 650 . The fourth partition member 640 (or the first enclosure) may surround the first vibrating device 210 - 1 . The fifth partition member 650 (or the second enclosure) may surround the second vibrating device 210 - 2 .

The fourth partition member 640 may be disposed between the display panel 100 and the support member 300 to correspond to the first air gap AG1 . For example, the fourth partition member 640 may independently surround the first vibrating device 210-1. The fourth partition member 640 according to the embodiment of the present specification may have a rectangular shape surrounding the first vibrating device 210-1, but is not limited thereto. For example, the fourth partition member 640 may have the same or different shape as that of the first vibrating device 210-1. For example, when the first vibrating device 210-1 has a square shape, the fourth partition member 640 has a square shape having a relatively larger size than that of the first vibrating device 210-1, or has a circular shape. It may have a shape or an oval shape.

The fourth partition member 640 may limit (or define) a vibration region (or vibration area) of the display panel 100 by the first vibration device 210 - 1 . For example, in the first area A1 of the display panel 100 , as the size of the fourth partition member 640 increases, the vibration area of the first area A1 increases, so that the low-pitched sound characteristics of the left sound are improved. can be As another example, in the first area A1 of the display panel 100 , as the size of the fourth partition member 640 decreases, the vibration area of the first area A1 decreases, so that the high-pitched sound characteristics of the left sound may be improved. can Accordingly, the size of the fourth partition member 640 may be set according to the characteristics of the sound range required according to the vibration of the display panel 100 due to the vibration of the first vibrating device 210 - 1 .

The fifth partition member 650 may be disposed between the display panel 100 and the support member 300 to correspond to the second air gap AG2 . For example, the fifth partition member 650 may independently surround the second vibrating device 210 - 2 . The fifth partition member 650 according to the embodiment of the present specification has the same shape as the fourth partition member 640 for symmetry between the left sound and the right sound, and has a rear middle line CL of the display panel 100 . It may have a symmetrical structure with the fourth partition member 640 based on .

The fifth partition member 650 may limit (or define) a vibration region (or vibration area) of the display panel 100 by the second vibration device 210 - 2 . For example, in the second area A2 of the display panel 100 , as the size of the fifth partition member 650 increases, the vibration area of the second area A2 increases, so that the low-pitched sound characteristics of the left sound are improved. can be As another example, in the second area A2 of the display panel 100 , as the size of the fifth partition member 650 decreases, the vibration area of the second area A2 decreases, so that the high-pitched sound characteristics of the left sound may be improved. can Accordingly, the size of the fifth partition member 650 may be set according to the characteristics of the sound range required according to the vibration of the display panel 100 due to the vibration of the second vibration device 210 - 2 .

The fourth partition member 640 and the fifth partition member 650 limit the vibration region (or vibration area) of the vibrating devices 210 - 1 and 210 - 2 to the left side generated according to the vibration of the display panel 100 . It is possible to improve the left-right symmetry between the sound and the right sound, and to optimize the sound pressure characteristics and the reproduction sound range of each of the left and right sounds. For example, when the fourth partition member 640 and the fifth partition member 650 are disposed, the third partition member 630 may be omitted. As another example, when the fourth partition member 640 and the fifth partition member 650 are disposed, one of the first partition member 610 , the second partition member 620 , and the third partition member 630 . The above may be omitted.

Accordingly, the device according to another exemplary embodiment of the present specification can optimize the sound pressure characteristics and reproduction sound range of each of the left and right sounds by including the partition 600 . For example, the device according to an embodiment of the present specification may include at least one of a first partition member 610 and a second partition member 620 . For example, the device according to the embodiment of the present specification may include at least one of the first partition member 610 and the second partition member 620 and the third partition member 630 . For example, the device according to the embodiment of the present specification may include third to fifth partition members 630 , 640 , and 650 . For example, the device according to the embodiment of the present specification may include all of the first to fifth partition members 610 , 620 , 630 , 640 , and 650 .

Accordingly, the device according to another exemplary embodiment of the present specification generates a left sound PVS1 and a right sound PVS2 through the first vibrating device 210 - 1 and the second vibrating device 210 - 2 to the display panel 100 . It is possible to provide a sound to the user by outputting it to the front of the . The device according to another exemplary embodiment of the present specification may output a sound including a two-channel type sound to the front of the display panel 100 by separating the left and right sounds PVS1 and PVS2 according to the partition 600 . And, in the device according to another embodiment of the present specification, the flatness of the acoustic characteristics is reduced due to the reduction of the resonance frequency by the plates implemented in each of the first vibrating device 210-1 and the second vibrating device 210-2. can be improved

18A and 18B are diagrams illustrating an apparatus according to another embodiment of the present specification.

18A and 18B , the vibrating device according to another exemplary embodiment of the present specification includes a first vibrating device 210 - 1 , a second vibrating device 210 - 2 disposed on the rear surface of the display panel 100 , It may include a third vibrating device 210-3, and a fourth vibrating device 210-4. 18A and 18B are described using the apparatus of FIGS. 12 and 13 as an example, but are not limited thereto. For example, the description of FIGS. 18A and 18B may also be applied to FIGS. 2 to 5 , 7 to 11 , and 14 to 16 .

Referring to FIG. 18A , each of the first vibrating device 210 - 1 and the third vibrating device 210 - 3 may be disposed in the first area A1 of the display panel 100 . For example, each of the first vibrating device 210 - 1 and the third vibrating device 210 - 3 may be staggered or disposed in a diagonal direction in the first area A1 of the display panel 100 . Accordingly, the vibration area of the first area A1 of the display panel 100 may be increased. For example, the diagonal direction may be a direction between the first direction (X) and the second direction (Y).

The first vibrating device 210 - 1 and the third vibrating device 210 - 3 may be surrounded by the partition 600 . For example, the first vibrating device 210-1 and the third vibrating device 210-3 may be surrounded by the fourth partition member 640 (or the first enclosure).

Each of the first vibrating device 210-1 and the third vibrating device 210-3 vibrates the first region A1 of the display panel 100 in the first region A1 of the display panel 100. 1 It is possible to generate a vibration sound (or a left sound) or generate a first haptic feedback. For example, the vibration area of the first area A1 of the display panel 100 increases according to the parallel arrangement structure of the first vibration device 210 - 1 and the third vibration device 210 - 3 , and thus As a result, acoustic characteristics including the low-pitched range of the left sound may be improved. For example, as the third vibration device 210-3 is further disposed in the first area A1 of the display panel 100 in addition to the first vibration device 210-1, the second vibration device according to another embodiment of the present specification is further disposed. The first vibration sound or the first haptic feedback may be further improved than the first vibration sound or the first haptic feedback described with reference to FIG. 17 .

According to the present specification, the first vibrating device 210-1 may be disposed to be biased toward the edge of the first area A1 of the display panel 100 . For example, the first vibrating device 210-1 may be disposed in an upper left area adjacent to the edge of the display panel 100 in the first area A1 of the display panel 100 . The third vibrating device 210 - 3 may be disposed to be biased toward the middle line CL of the display panel 100 within the first area A1 of the display panel 100 . For example, the third vibrating device 210 - 3 may be disposed in the lower right area adjacent to the middle line CL of the display panel 100 in the first area A1 of the display panel 100 . The third vibrating device 210 - 3 is disposed to cross the first vibrating device 210 - 1 in the first area A1 of the display panel 100 in the first direction (X) and the second direction (Y). It may not overlap with the first vibrating device 210-1. According to the present specification, the diagonal arrangement structure of the first vibrating device 210-1 and the third vibrating device 210-3 includes two vibrating devices 210-1 in the first area A1 of the display panel 100. , 210-3) in a 2Х2 structure, the number of vibrating devices vibrating the first area A1 of the display panel 100 can be reduced by half.

Each of the second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 may be disposed in the second area A2 of the display panel 100 . For example, each of the second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 may be staggered or disposed in a diagonal direction in the second area A2 of the display panel 100 . Accordingly, the vibration area of the second area A2 of the display panel 100 may be increased. For example, the diagonal direction may be a direction between the first direction (X) and the second direction (Y).

The second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 may be surrounded by the partition 600 . For example, the second vibration device 210 - 2 and the fourth vibration device 210 - 4 may be surrounded by the fifth partition member 650 (or the second enclosure).

Each of the second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 vibrates the second region A2 of the display panel 100 in the second region A2 of the display panel 100 . A second vibration sound (or a right sound) may be generated or a second haptic feedback may be generated. For example, the vibration area of the second area A2 of the display panel 100 increases according to the diagonal arrangement structure of the second vibration device 210 - 2 and the fourth vibration device 210 - 4 , and thus Accordingly, acoustic characteristics including low-pitched characteristics of the right sound may be improved. For example, as the fourth vibrating device 210-4 is further disposed in the second area A2 of the display panel 100 in addition to the second vibrating device 210-2, the second vibrator according to another embodiment of the present specification is further disposed. The second vibration sound or the second haptic feedback may be further improved than the second vibration sound or the second haptic feedback described with reference to FIG. 17 .

According to the present specification, the second vibrating device 210 - 2 may be disposed to be biased toward the edge of the second area A2 of the display panel 100 . For example, the second vibrating device 210 - 2 may be disposed in the upper right area adjacent to the edge of the display panel 100 in the second area A2 of the display panel 100 . In addition, the first vibrating device 210 - 1 and the second vibrating device 210 - 2 may be symmetrical with respect to the middle line CL of the display panel 100 . The fourth vibrating device 210 - 4 may be disposed to be biased toward the middle line CL of the display panel 100 in the second area A2 of the display panel 100 . For example, the fourth vibrating device 210 - 4 may be disposed in the lower left area adjacent to the middle line CL of the display panel 100 in the second area A2 of the display panel 100 . The fourth vibrating device 210 - 4 is alternately disposed with the second vibrating device 210 - 2 in the second area A2 of the display panel 100 in the first direction (X) and the second direction (Y). It may not overlap with the second vibrating device 210 - 2 . According to the present specification, the diagonal arrangement structure of the second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 is two vibrating devices 210 - 2 in the second area A2 of the display panel 100 . , 210 - 4) in a 2Х2 structure, the number of vibrating devices vibrating the second area A2 of the display panel 100 can be reduced by half.

Vibration layers of each of the plurality of vibration modules included in each of the first to fourth vibration devices 210-1, 210-2, 210-3, and 210-4 may be the same as or different from each other. For example, according to the acoustic characteristics required for the device, the vibration layer of each of the plurality of vibration modules included in each of the first to fourth vibration devices (210-1, 210-2, 210-3, 210-4) may include the same vibrating units 211 and 221 as any one or more of the vibrating units 211 and 221 described with reference to FIGS. 2 to 10 , or may include different vibrating units 211 and 221 . The vibrating layers of the vibrating units 211 and 221 of each of the plurality of vibration modules included in each of the first to fourth vibrating devices 210-1, 210-2, 210-3, and 210-4 are shown in FIGS. When the vibrating units 211 and 221 of the vibrating units 211 and 221 described above are included, the vibrating device 200 may have various resonant frequencies, and thereby interlocking with the vibration of the vibrating device 200 . The reproduction band of the generated sound and the sound pressure characteristic of the sound may be greatly increased.

The arrangement structure of the first to fourth vibrating apparatuses 210-1, 210-2, 210-3, and 210-4 is not limited to the arrangement structure shown in FIG. 22A. For example, in each of the first area A1 and the second area A2 of the display panel 100 , the direction between the upper left side and the lower right side is referred to as a first diagonal direction, and the direction between the upper right side and the lower left side is referred to as a first diagonal direction. When is referred to as a second diagonal direction, the first vibrating device 210-1 and the third vibrating device 210-3 may be disposed along the first diagonal direction or the second diagonal direction, and the second vibrating device ( 210-2) and the fourth vibrating device 210-4 are the same as the diagonal arrangement directions of the first vibrating device 210-1 and the third vibrating device 210-3 among the first and second diagonal directions or along other diagonal directions. For example, the first vibrating device 210-1 and the second vibrating device 210-2 may be arranged in a left-right symmetrical structure or a left-right asymmetrical structure with respect to the middle line CL of the display panel 100 . can Also, the third vibrating device 210 - 3 and the fourth vibrating device 210 - 4 may be arranged in a left-right symmetrical structure or a left-right asymmetrical structure with respect to the middle line CL of the display panel 100 . .

Accordingly, the device according to another exemplary embodiment of the present specification may provide a sound to a user, output a sound of two or more channels to the front of the display panel 100 , and reduce the resonance frequency of the vibrating device 200 . In this case, the heat of the display panel 100 may be dissipated. In addition, the device according to another embodiment of the present specification has a diagonal arrangement structure of the first vibrating device 210-1 and the third vibrating device 210-3, and the second vibrating device 210-2 and the fourth vibrating device. As the vibration area of each of the first and second regions A1 and A2 according to the diagonal arrangement structure of the device 210 - 4 increases, the sound pressure characteristics of the low-pitched range may be further improved.

Referring to FIG. 18B , each of the first vibrating device 210 - 1 and the third vibrating device 210 - 3 may be disposed in the first area A1 of the display panel 100 . For example, each of the first vibrating device 210-1 and the third vibrating device 210-3 moves in the first direction X (or the horizontal direction) in the first area A1 of the display panel 100 . They may be arranged side by side with each other. For example, each of the first vibrating device 210-1 and the third vibrating device 210-3 moves in the second direction Y (or the vertical direction) in the first area A1 of the display panel 100 . They may be arranged in a line along the line.

The first vibrating device 210 - 1 and the third vibrating device 210 - 3 may be surrounded by the partition 600 . For example, the first vibrating device 210-1 and the third vibrating device 210-3 may be surrounded by the fourth partition member 640 (or the first enclosure).

Each of the first vibrating device 210-1 and the third vibrating device 210-3 vibrates the first region A1 of the display panel 100 in the first region A1 of the display panel 100. 1 It is possible to generate a vibration sound (or a left sound) or generate a first haptic feedback. For example, the vibration area of the first area A1 of the display panel 100 increases according to the parallel arrangement structure of the first vibration device 210 - 1 and the third vibration device 210 - 3 , and thus Accordingly, acoustic characteristics including the low-pitched range of the left sound may be improved. For example, as the third vibration device 210-3 is further disposed in the first area A1 of the display panel 100 in addition to the first vibration device 210-1, the second vibration device according to another embodiment of the present specification is further disposed. The first vibration sound or the first haptic feedback may be further improved than the first vibration sound or the first haptic feedback described with reference to FIG. 17 .

According to the present specification, based on the center line of the first area A1 of the display panel 100 parallel to the first direction X, the first vibrating device 210-1 may be disposed above the center line. And, the third vibrating device 210-3 may be disposed below the center line. The first vibrating device 210-1 and the third vibrating device 210-3 may be symmetrical (or vertically symmetrical) with respect to the center line. The vibration area of the first area A1 of the display panel 100 may increase according to the parallel arrangement structure of the first vibrating device 210 - 1 and the third vibrating device 210 - 3 , whereby the left sound Acoustic characteristics including the low-pitched sound characteristics of can be improved.

According to the present specification, based on the second direction (Y), the interval (or the separation distance) between the first vibrating device 210-1 and the third vibrating device 210-3 may be 0.1 mm or more and less than 3 cm, , but is not limited thereto. Thereby, the occurrence or damage of cracks due to physical contact between the first vibrating device 210 - 1 and the third vibrating device 210 - 3 can be prevented.

Each of the second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 may be disposed in the second area A2 of the display panel 100 . For example, each of the second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 moves in the first direction X (or the horizontal direction) in the second area A2 of the display panel 100 . They may be arranged side by side with each other. For example, each of the second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 moves in the second direction Y (or the vertical direction) in the second area A2 of the display panel 100 . may be arranged in a line along the

The second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 may be surrounded by the partition 600 . For example, the second vibration device 210 - 2 and the fourth vibration device 210 - 4 may be surrounded by the fifth partition member 650 (or the second enclosure).

Each of the second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 vibrates the second region A2 of the display panel 100 in the second region A2 of the display panel 100 . A second vibration sound (or a right sound) may be generated or a second haptic feedback may be generated. For example, the vibration area of the second area A2 of the display panel 100 increases according to the parallel arrangement structure of the second vibration device 210 - 2 and the fourth vibration device 210 - 4 , and thus Accordingly, acoustic characteristics including low-pitched characteristics of the right sound may be improved. For example, as the fourth vibrating device 210-4 is further disposed in the second area A2 of the display panel 100 in addition to the second vibrating device 210-2, the second vibrator according to another embodiment of the present specification is further disposed. The second vibration sound or the second haptic feedback may be further improved than the second vibration sound or the second haptic feedback described with reference to FIG. 17 .

According to the present specification, based on the center line of the second area A2 of the display panel 100 parallel to the first direction X, the second vibrating device 210 - 2 may be disposed above the center line. and the fourth vibrating device 210-4 may be disposed below the center line. The second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 may be symmetrical to each other (or vertically symmetrical) with respect to the center line. The vibration area of the second area A2 of the display panel 100 may increase according to the parallel arrangement structure of the second vibration device 210 - 2 and the fourth vibration device 210 - 4, whereby the right sound Acoustic characteristics including low-pitched characteristics of may be improved.

According to the present specification, based on the second direction (Y), the interval (or spacing distance) between the second vibrating device 210-2 and the fourth vibrating device 210-4 may be 0.1 mm or more and less than 3 cm, , but is not limited thereto. Accordingly, the occurrence or damage of cracks due to physical contact between the second vibrating device 210 - 2 and the fourth vibrating device 210 - 4 can be prevented.

Vibration layers of each of the plurality of vibration modules included in each of the first to fourth vibration devices 210-1, 210-2, 210-3, and 210-4 may be the same as or different from each other. For example, according to the acoustic characteristics required for the device, the vibration layer of each of the plurality of vibration modules included in each of the first to fourth vibration devices (210-1, 210-2, 210-3, 210-4) may include the same vibrating units 211 and 221 as any one or more of the vibrating units 211 and 221 described with reference to FIGS. 2 to 10 , or may include different vibrating units 211 and 221 . The vibrating layers of the vibrating units 211 and 221 of each of the plurality of vibration modules included in each of the first to fourth vibrating devices 210-1, 210-2, 210-3, and 210-4 are shown in FIGS. When each of the vibrating units 211 and 221 described in 10 includes different vibrating units 211 and 221 , the vibrating device 200 may have various resonant frequencies, thereby interlocking with the vibration of the vibrating device 200 . The reproduction band of the generated sound and the sound pressure characteristic of the sound may be greatly increased.

According to the present specification, in FIG. 18B , the first vibrating device 210 - 1 and the third vibrating device 210 - 3 are arranged side by side in the first direction (X) (or the transverse direction) or in the second direction Although it has been described as being arranged in a line along (Y) (or vertical direction), the present invention is not limited thereto. For example, the first vibrating device 210-1 and the third vibrating device 210-3 are disposed side by side in the second direction Y (or vertical direction) or in the first direction X (or It may be configured in a parallel arrangement structure arranged in a line along the horizontal direction), and even in this case, the same effect as that of FIG. 22A may be obtained. In addition, the second vibrating device 210-2 and the fourth vibrating device 210-4 are also arranged side by side in the second direction Y (or vertical direction) or in the first direction X (or horizontal direction). ) may be configured in a parallel arrangement structure arranged in a line along the line, and even in this case, the same effect as that of FIG. 18A may be obtained.

When the first vibrating device 210 - 1 and the second vibrating device 210 - 2 include a plurality of vibrating modules, the sound pressure may be lowered at a specific frequency. For example, the sound pressure in the midrange may be lowered. Since resonance or reverse resonance occurs at the boundary between the plurality of vibration modules, the sound pressure may be reduced. For example, resonance or reverse resonance may occur in a central portion between the plurality of vibration modules, thereby reducing the sound pressure. A vibration device according to another embodiment of the present specification may arrange a pad member at the boundary of the plurality of vibration modules in order to improve sound quality deterioration or a dip phenomenon occurring in the boundary region between the plurality of vibration modules. For example, the pad member may suppress or reduce the resonant frequency at the boundary of the plurality of vibration modules. The pad member may be configured to reduce a drop in sound pressure occurring between the plurality of vibration modules.

18A and 18B , the pad member may be disposed between two or more vibration modules. The first pad member 701 may be disposed between the plurality of vibration modules of the first vibration device 210-1. For example, the first pad member 701 may be disposed between the plurality of vibration modules of the third vibration device 210 - 3 . For example, the first pad member 701 may overlap between the plurality of vibration modules. The second pad member 702 may be disposed between the plurality of vibration modules of the second vibration device 210 - 2 . For example, the second pad member 702 may be disposed between the plurality of vibration modules of the fourth vibration device 210 - 4 . For example, the second pad member 702 may overlap between the plurality of vibration modules. The first pad member 701 and the second pad member 702 may be a resonance control pad, an external resonance pad, a gap pad, or a resonance control unit, but are not limited thereto.

The first pad member 701 may be disposed between the first vibrating device 210-1 and the support member 300 . The first pad member 701 may be disposed between the third vibrating device 210 - 3 and the support member 300 . For example, the first pad member 701 may have a “+” shape overlapping between the plurality of vibration modules of the first vibration device 210-1 and the third vibration device 210-3. . The second pad member 702 may be disposed between the second vibrating device 210 - 2 and the support member 300 . The second pad member 702 may be disposed between the fourth vibrating device 210 - 4 and the support member 300 . For example, the second pad member 702 may have a “+” shape overlapping between the plurality of vibration modules of the second vibration device 210 - 2 and the fourth vibration device 210 - 4 . .

The first pad member 701 and the second pad member 702 may be disposed between the support member 300 and the vibrating device 200 . For example, the first pad member 701 may be disposed on the plurality of vibration modules of the first vibration device 210-1. A first pad member 701 may be disposed on the plurality of vibration modules of the third vibration device 210 - 3 . A second pad member 702 may be disposed on the plurality of vibration modules of the second vibration device 210 - 2 . A second pad member 702 may be disposed on the plurality of vibration modules of the fourth vibration device 210 - 4 .

As another example, the first pad member 701 and the second pad member 702 may be disposed on rear surfaces of the plurality of vibration generators 210 and 230 . For example, the first pad member 701 and the second pad member 702 may be disposed under the second vibration generator 230 among the plurality of vibration generators 210 and 230 .

The first pad member 701 and the second pad member 702 may be made of a material capable of absorbing vibration or controlling vibration. For example, the first pad member 701 and the second pad member 702 may be formed of one of a silicone-based polymer, paraffin wax, and an acrylic-based polymer, but is not limited thereto. For example, the first pad member 701 and the second pad member 702 may be made of a material different from that of the partition 600 , but is not limited thereto.

For another example, at least one of the first pad member 701 and the second pad member 702 may be configured in the same manner as the vibrating device 200 . For example, at least one of the first pad member 701 and the second pad member 702 may have the same configuration as the vibrating units 211 and 221 .

As another example, the pad member may be applied to the devices shown in FIGS. 3 and 7 . 3 and 7 , the pad member may be disposed between the vibrating device 200 and the support member 300 . For example, the pad member may be disposed between the vibrating device 200 and the second support member 330 . For example, the pad member may be disposed between the rear surface of the vibrating device 200 and the second support member 330 . For example, the pad member may overlap the support member 300 . For example, the pad member may overlap the second support member 330 . For example, the pad member may be disposed in a portion without the hole 301 . The pad member may be a transmission member or a vibration transmission member for transmitting the sound or vibration of the vibrating device 200 to the front of the device. By configuring the pad member between the vibrating device 200 and the support member 300, the sound or vibration of the vibrating device can be transmitted to the front side of the device, so that it is possible to provide a device with improved acoustic characteristics and/or sound pressure characteristics.

As another example, the first pad member 701 and the second pad member 702 may be configured as one pad member. For example, the pad member may be configured as one on the rear surfaces of the first vibrating device 210 - 1 and the second vibrating device 210 - 2 . 8 and 9 , the pad member may be disposed on the rear surface of the third vibration module 210C and the fourth vibration module 210D of the second vibration generator 230 . For example, the pad member is a rear surface of the third vibration module 210C and the fourth vibration module 210D of the second vibration generator 230, for example, the third vibration module 210C and the fourth vibration module ( 210D) may be disposed. For example, the pad member may be disposed on the entire rear surface of the third vibration module 210C and the fourth vibration module 210D of the second vibration generator 230 .

Each of the plurality of vibration modules included in the first vibrating device 210-1, the second vibrating device 210-2, the third vibrating device 210-3, and the fourth vibrating device 210-4 is a vibration It may include a first portion and a second portion of the eastern part (211, 221). Referring to FIG. 18A , the arrangement direction of the first part and the arrangement direction of the second part of the vibrating units 211 and 221 may be the same, but the present invention is not limited thereto. For example, the arrangement direction of the first portion and the arrangement direction of the second portion of the vibrating units 211 and 221 may be the same as the vertical direction of the display panel 100 . For example, the arrangement direction of the first portion and the arrangement direction of the second portion of the vibrating units 211 and 221 may be the same as the second direction (Y direction) of the display panel 100 . For example, the arrangement direction of the first part and the arrangement direction of the second part of the vibrating part of the first vibrating device 210-1 are the same as the longitudinal direction of the display panel 100, and the third vibrating device 210 The arrangement direction of the first part and the arrangement direction of the second part of the vibrating part of -3) may be the same as the horizontal direction of the display panel 100 , or vice versa. For example, the arrangement direction of the first portion and the arrangement direction of the second portion of the vibrating unit of the second vibrating device 210 - 2 are the same as the vertical direction of the display panel 100 , and the fourth vibrating device 210 is configured to be the same as the vertical direction. The arrangement direction of the first part and the arrangement direction of the second part of the vibrating part of -4) may be the same as the horizontal direction of the display panel 100 or vice versa.

As another example, the arrangement direction of the first part and the arrangement direction of the second part of the vibrating part of the first vibrating device 210-1 are the same as the vertical direction of the display panel 100, and the second vibrating device 210 The arrangement direction of the first part and the arrangement direction of the second part of the vibrating part of -2) may be the same as the horizontal direction of the display panel 100 , or vice versa. For example, the arrangement direction of the first part and the arrangement direction of the second part of the vibrating part of the third vibrating device 210 - 3 are the same as the longitudinal direction of the display panel 100 , and the fourth vibrating device 210 The arrangement direction of the first part and the arrangement direction of the second part of the vibrating part of -4) may be the same as the horizontal direction of the display panel 100 or vice versa.

For example, the arrangement direction of the first part and the arrangement direction of the second part of the vibrating part included in the first vibrating device 210-1 and the second vibrating device 210-2 are the third vibrating device 210-3 ) and the arrangement direction of the first part of the vibrating unit included in the fourth vibrating device 210-4 and the arrangement direction of the second part may be symmetrical. As another example, the arrangement direction of the first part and the arrangement direction of the second part of the vibrating part included in the first vibrating device 210-1 and the second vibrating device 210-2 are the third vibrating device 210-3 ) and the arrangement direction of the first part of the vibrating unit included in the fourth vibrating device 210-4 and the arrangement direction of the second part may be asymmetric. For example, the arrangement direction of the first part of the vibrating part included in the first vibrating device 210 - 1 and the arrangement direction of the second part of the vibrating part included in the first vibrating device 210 - 1 are the same as those of the first part of the vibrating part included in the third vibrating device 210 - 3 . The arrangement direction may be different from the arrangement direction of the second part. For example, the arrangement direction of the first part of the vibrating unit included in the second vibrating device 210-2 and the arrangement direction of the second part are the same as those of the first part of the vibrating unit included in the fourth vibrating device 210-4. The arrangement direction may be different from the arrangement direction of the second part.

For example, the arrangement direction of the first portion and the arrangement direction of the second portion of the vibration modules included in the vibration device may be the same as the horizontal direction of the display panel, the same as the vertical direction of the display panel, or a combination thereof. . For example, the arrangement direction of the first part and the arrangement direction of the second part included in at least one of the first to fourth vibrating devices are the same as the horizontal direction of the display panel, the same as the vertical direction of the display panel, or these may be composed of a combination of

18A and 18B , the device according to an embodiment of the present specification may further include a partition 600 . For example, the partition 600 includes a first partition member 610 , a second partition member 620 , a third partition member 630 , a fourth partition member 640 , and a fifth partition member 650 . may include Without limitation, the partition 600 may include a first partition member 610 , a third partition member 630 , a fourth partition member 640 , and a fifth partition member 650 . Since the description is the same as that described with reference to FIG. 17 , a description thereof will be omitted.

19 is a diagram illustrating an apparatus according to another embodiment of the present specification. FIG. 20 is a diagram illustrating 'A' of FIG. 19 . FIG. 21 is a cross-sectional view taken along line IV-IV' shown in FIG. 20 .

Referring to FIG. 19 , an apparatus according to another exemplary embodiment of the present specification may include a vibrating device 200 disposed on the rear surface of the display panel 100 , and a pad part PP.

The plurality of vibration signal line units 140 may be connected to the vibration device 200 . The plurality of vibration signal line units 140 may be connected to the pad unit PP. For example, the plurality of vibration signal line units 140 may provide a vibration driving signal to the vibration device 200 .

20 and 21 , the display panel 100 may include a first substrate 110 , a pixel array unit 120 , a second substrate 130 , and a pad unit PP. The pixel array unit 120 may be disposed on the first substrate 110 . The first substrate 110 may be a display substrate and is not limited thereto. The second substrate 130 may be disposed on the pixel array unit 120 . The second substrate 130 may be a back plate or an encapsulation substrate, but is not limited thereto.

The pad part PP may be disposed on one side of the display panel 100 . For example, the pad part PP may be disposed at an edge of the display panel 100 . For example, the pad part PP may be connected to the display panel 100 .

The pad part PP may include a plurality of vibration signal pads PDv and a plurality of display signal pads PDd. For example, the plurality of vibration signal pads PDv may be disposed parallel to each other at the edge of the display panel 100 . For example, the plurality of display signal pads PDd may be disposed parallel to each other at the edge of the display panel 100 . For example, the plurality of vibration signal pads PDv and the plurality of display signal pads PDd may be disposed to be electrically separated from each other without being electrically connected to each other. For example, the plurality of vibration signal pads PDv and the plurality of display signal pads PDd may be disposed parallel to each other at the edge of the display panel 100 .

Each of the plurality of vibration signal pads PDv may be connected to the plurality of vibration signal line units 140 . For example, each of the plurality of vibration signal pads PDv may be connected to an end (or one side) of each of the plurality of vibration signal line units 140 . For example, each of the plurality of vibration signal pads PDv may be electrically connected to each of the plurality of vibration signal line units 140 one-to-one. Accordingly, each of the plurality of vibration signal pads PDv may provide a vibration driving signal to the vibration device 200 to the plurality of vibration signal line units 140 .

For example, the display signal pad PDd may receive a display signal supplied from the outside. The display signal may be supplied to the pixel array unit 120 through the display signal pad PDd.

The vibration signal line unit 140 may be disposed on the display panel 100 . For example, the vibration signal line unit 140 may be disposed on one side of the first substrate 11 . For example, the vibration signal line unit 140 may be connected to the pad unit PP connected to the display panel 100 . For example, the vibration signal line unit 140 may be connected to the vibration signal pad PDv of the pad unit PP.

For example, the vibration signal line unit 140 may be disposed on the second substrate 130 . For example, the vibration signal line unit 140 may be disposed to cover the upper surface and the side surface of the second substrate 130 . For example, the vibration signal line unit 140 may be disposed to cover an upper surface and a side surface of each of the pixel array unit 12 and/or the second substrate 130 .

The vibration signal line unit 140 may include an insulating layer 141 , a first layer 143 , and a second layer 145 . For example, the vibration signal line unit 140 may be configured by a pad printing method or a printing method. The insulating layer 141 may be a material including an epoxy resin, an acrylic resin, a polyimide resin, a polyimide film, a polyester film, and ink, but is not limited thereto. The first layer 143 may be disposed on the insulating layer 141 . For example, the first layer 143 may be a wiring for applying a signal to the vibration device 200 . For example, the first layer 143 may be a wiring that applies a vibration driving signal to the vibration device 200 . For example, the first layer 143 may be formed of one of silver (Ag), copper (Cu), and an alloy of silver (Ag) and copper (Cu), but is not limited thereto. The second layer 145 may be disposed on the first layer 143 . For example, the second layer 145 may include a black color, but is not limited thereto. For example, the second layer 145 may cover the first layer 143 . For example, the second layer 145 may completely cover the first layer 143 . For example, the second layer 145 may be a clad formed outside the first layer 143 . For example, the second layer 145 may be a cover layer, but is not limited thereto. For example, the first layer 143 may be surrounded by the insulating layer 141 and the second layer 145 .

According to the embodiment of the present specification, the vibration signal line unit 140 may be connected to the pad unit PP connected to the display panel 100 . For example, the vibration signal line unit 140 may apply a vibration driving signal from the pad unit PP connected to the display panel 100 to the vibration device 200 . For example, the vibration device 200 may receive a vibration driving signal through the vibration signal line unit 140 on the second substrate 130 .

According to the embodiment of the present specification, since the pad part PP does not constitute a hole through which a wiring capable of supplying a vibration driving signal (or a sound signal) provided from the sound processing circuit to the vibration device 200 is exposed, the hole configuration Accordingly, it is possible to solve the problem that the image quality of the display device is deteriorated due to heat generated when the vibrating device 200 vibrates. According to the embodiment of the present specification, it is not necessary to form a hole exposing the wiring for applying the vibration driving signal, so that the process can be simplified. According to the exemplary embodiment of the present specification, since there is no need to separately configure the wire lead-out unit for applying the vibration driving signal, assembly of the display device may be improved. According to the embodiment of the present specification, by configuring the vibration signal line unit connected to the pad unit, the wiring structure for supplying a signal to the vibrating device can be simplified. According to the embodiment of the present specification, since the vibration signal line unit 140 for applying a signal to the vibration device is configured by printing or printing, the wiring process is simplified, and there is no need to separately configure a cable for the wiring for applying the signal. There is this.

22 is a diagram illustrating an apparatus according to another embodiment of the present specification. 23 is a cross-sectional view taken along line V-V' shown in FIG. 22 .

22 and 23 , an apparatus according to another exemplary embodiment of the present specification may include a vibration device 200 , a source PCB 50 , and a control board 70 disposed on the rear surface of the display panel 100 . can

Referring to FIG. 22 , the drive IC 40 may be disposed on the flexible film 30 . For example, the flexible film 30 may be connected to the pad part PP. The source PCB 50 may be disposed on one side of the display panel 100 . For example, the source PCB 50 may be connected to the flexible film 30 .

A cable may be connected to the source PCB 50 . The cable may include a first cable 60 and a second cable 65 . Signal transfer lines 31 may be disposed on the flexible film 30 . For example, the flexible film 30 may include signal transmission lines 31 connected to the pad part PP. For example, the vibration signal line unit 140 may be connected to the signal transmission lines 31 through only the pad unit PP or by the pad unit PP. The signal transfer lines 31 may be connected to the source PCB 50 . The source PCB 50 may be connected to the second cable 65 . For example, the vibration signal line unit 140 may be connected to the second cable 65 by the pad unit PP and the source PCB 50 . In addition, the resin 160 may be disposed on one side of the drive IC 40 .

The control board 70 may be disposed on the rear surface of the display panel 100 . The control board 70 may include a timing controller 75 and a sound processing circuit 80 . For example, the sound processing circuit 80 may be built in the control board 70 . A vibration driving signal (or an acoustic signal) provided from the sound processing circuit 80 may be supplied to the vibration device 200 . For example, the vibration driving signal provided from the sound processing circuit 80 is transmitted to the source PCB 50 by the first cable 60 , and the vibration driving signal transmitted to the source PCB 50 is transmitted to the second cable ( 65) through another source PCB 50 and the signal transfer lines 31 of the flexible film 30 and the vibration signal line unit 140 through the pad unit PP. Accordingly, the vibration driving signal may be applied to the vibration device 200 . For example, for example, the vibration driving signal provided from the sound processing circuit 80 is transmitted through the signal transmission lines 31 and the pad of the source PCB 50 and the flexible film 30 by the first cable 60 . It may be connected to the vibration signal line unit 140 through the unit PP. Accordingly, the vibration driving signal may be applied to the vibration device 200 .

The vibration signal line unit 140 may include an insulating layer 141 , a first layer 143 , and a second layer 145 . The insulating layer 141 may be a material including an epoxy resin, an acrylic resin, a polyimide resin, a polyimide film, a polyester film, and ink, but is not limited thereto. The first layer 143 may be disposed on the insulating layer. For example, the first layer 143 may be a wiring for applying a signal to the vibration device 200 . For example, the first layer 143 may be a wiring that applies a vibration driving signal to the vibration device 200 . For example, the first layer 143 may be formed of one of silver (Ag), copper (Cu), and an alloy of silver (Ag) and copper (Cu), but is not limited thereto. The second layer 145 may be disposed on the first layer 143 . For example, the second layer 145 may include a black color, but is not limited thereto. For example, the second layer 145 may cover the first layer 143 . For example, the second layer 145 may completely cover the first layer 143 . For example, the second layer 145 may be a clad formed outside the first layer 143 . For example, the second layer 145 may be a cover layer, but is not limited thereto. For example, the first layer 143 may be surrounded by the insulating layer 141 and the second layer 145 .

Referring to FIG. 23 , the flexible film 30 may be disposed on the vibration signal line unit 140 . A drive IC 40 may be disposed on one side of the flexible film 30 . The source PCB 50 may be disposed between the vibration signal line unit 140 and the flexible film 30 . The flexible film 30 may be connected to the pad part PP. For example, the vibration signal line unit 140 may be connected to the signal transmission lines 31 by the pad unit PP. For example, the flexible film 30 may be connected to the vibration signal pad PDv. The flexible film 30 may be in contact with the upper surface of the source PCB 50 and the upper surface of the pad part PP. For example, the flexible film 30 may be in contact with the side surface of the vibration signal line unit 140 . The resin 160 may be disposed on one side of the pad part PP. For example, the resin 160 may cover one side of the flexible film 30 . The resin 160 may protect the flexible film 30 and the pad part PP. For example, the resin 160 may protect the side surface of the flexible film 30 and the side surface of the pad part PP.

According to the embodiment of the present specification, since the vibration signal line unit 140 capable of supplying the vibration driving signal (or sound signal) provided from the sound processing circuit 80 to the vibration device 200 is configured, the vibration device 200 ) may not form a hole in the pad part PP exposing a wiring supplying a signal. In addition, since the vibration signal line unit 154 can apply a vibration driving signal to the vibration device 200 by the pad unit PP connected to the display panel 100 , it does not form a hole in the pad unit and thus the design of the device. The degree of freedom can be improved.

24 is a diagram illustrating an apparatus according to another embodiment of the present specification. FIG. 25 is a cross-sectional view taken along VI-VI' shown in FIG. 24;

24 and 25 , the source PCB 50 may further include a heat dissipation member 180 . The heat dissipation member 180 may dissipate heat of the source PCB 50 . For example, the heat dissipation member 180 may be made of at least one of aluminum (Al) and an aluminum (Al) alloy, but is not limited thereto. The heat dissipation member 180 may be configured to be the same as or larger than the size of the source PCB 50 .

According to the embodiment of the present specification, the heat dissipation member 180 may be disposed between the source PCB 50 and the vibration signal line unit 140 . The heat dissipation member 180 may cover the side surface and the upper surface of the vibration signal line unit 140 . Accordingly, the influence of the heat of the source PCB 50 on the vibration signal line unit 140 and/or the display panel 100 may be reduced.

An adhesive member 185 may be disposed between the vibration signal line unit 140 and the heat dissipation member 180 . For example, the adhesive member 185 may include a foam pad, a double-sided tape, or an adhesive. For example, the adhesive layer of the adhesive member 185 may include, but is not limited to, epoxy, acryl, silicone, or urethane.

26A to 26E are views illustrating a manufacturing method according to an embodiment of the present specification.

Referring to FIG. 26A , the vibrator 200 may be disposed on the rear surface of the display panel 100 . The display panel 100 may include a pad part PP. For example, the pad part PP may be disposed on one side of the display panel 100 . For example, the vibrator 200 may be disposed on the rear surface of the display panel 100 including the pad part PP.

Referring to FIG. 26B , forming the vibration signal line unit 140 on the rear surface of the display panel 100 includes forming an insulating layer 141 between the pad unit PP and the vibration device 200 . can do. For example, the vibration signal line unit 140 connected to the vibration device 200 may be disposed on the rear surface of the display panel 100 . For example, the vibration signal line unit 140 connecting the pad unit PP and the vibrating device 200 may be disposed. For example, the vibration signal line unit 140 connecting the pad unit PP and the vibrating device 200 may be disposed on the rear surface of the display panel 100 . The vibration signal line unit 140 may be connected to the pad unit PP.

Referring to FIG. 26C , the first layer 143 may be formed on the insulating layer 141 . For example, the first layer 143 may be formed between the insulating layers 141 . The first layer 143 may be a wiring that applies a vibration driving signal to the vibration device 200 . For example, the first layer 143 may be formed of one of silver (Ag), copper (Cu), and an alloy of silver (Ag) and copper (Cu), but is not limited thereto.

Referring to FIG. 26D , a second layer 145 may be formed on the first layer 143 . For example, the second layer 145 may include a black color, but is not limited thereto. For example, the second layer 145 may cover the first layer 143 . For example, the second layer 145 may completely cover the first layer 143 . For example, the second layer 145 may be a clad formed outside the first layer 143 . For example, the second layer silver 145 may cover the insulating layer 141 and the first layer 143 .

Referring to FIG. 26E , the driving circuit unit may be connected to the pad unit PP. For example, the driving circuit unit may include the flexible film 30 , the source PCB 50 , and cables 61 and 65 . The flexible film 30 may be connected to the pad part PP. The drive IC 40 may be attached to the flexible film 50 . For example, the source PCB 50 may be connected to the flexible film 30 and disposed on one side of the display panel 100 . The vibration signal line unit 140 may be connected to the source PCB 50 through the pad unit PP and the flexible film 30 . The second cable 65 may be connected to the source PCB 50 . For example, the second cable 65 may be connected to the vibration signal line unit 140 of the vibration device 200 . For example, the vibration signal line unit 140 may be connected to the second cable 65 by the source PCB 50 through the pad unit PP and the flexible film 30 . For example, the vibration signal line unit 140 may be connected to the second cable 65 by the pad unit PP and the source PCB 50 . In addition, the source PCB 50 may be connected to the control board 70 . For example, the source PCB 50 may be connected to the control board 70 by the first cable 60 .

As another example, the heat dissipation member 180 may be further disposed on the vibration signal line unit 140 . After disposing the heat dissipation member 180 , the flexible film 30 connected to the source PCB 50 may be attached to the pad part PP. The source PCB 50 may be disposed on the rear surface of the display panel 100 to overlap the heat dissipation member 180 . For example, the heat dissipation member 180 may be disposed between the vibration signal line unit 140 and the source PCB 50 . The vibration signal line unit 140 may be connected to the source PCB 50 through the pad unit PP and the flexible film 30 . The second cable 65 may be connected to the source PCB 50 . For example, the second cable 65 may be connected to the vibration signal line unit 140 of the vibration device 200 . For example, the vibration signal line unit 140 may be connected to the second cable 65 by the source PCB 50 . For example, the vibration signal line unit 140 may be connected to the second cable 65 by the pad unit PP and the source PCB 50 . In addition, the source PCB 50 may be connected to the control board 70 . For example, the source PCB 50 may be connected to the control board 70 by the first cable 60 .

The vibrating device according to the embodiment of the present specification may be applied to a vibrating device disposed in the device. An apparatus according to an embodiment of the present specification is a mobile device, a video phone, a smart watch, a watch phone, a wearable apparatus, a foldable apparatus, a rollable apparatus ), bendable apparatus, flexible apparatus, curved apparatus, sliding apparatus, electronic notebook, e-book, PMP (portable multimedia player), PDA (personal digital assistant) ), MP3 player, mobile medical device, desktop PC, laptop PC, netbook computer, workstation, navigation, vehicle navigation, vehicle display device, vehicle device, theater use It can be applied to devices, theater display devices, televisions, wallpaper devices, signage devices, game devices, notebook computers, monitors, cameras, camcorders, home appliances, and the like. And, the vibration device of the present specification can be applied to an organic light emitting lighting device or an inorganic light emitting lighting device. When the vibrating device is applied to a lighting device, it may serve as a lighting device and a speaker. In addition, when the vibration device of the present specification is applied to a mobile device, it may be at least one of a speaker, a receiver, and a haptic, but is not limited thereto.

An apparatus and a manufacturing method thereof according to an embodiment of the present specification may be described as follows.

A device according to an embodiment of the present specification includes a display panel including a pad part for displaying an image, a vibrating device disposed on the rear surface of the display panel and vibrating the display panel, and a vibration signal line part between the pad part and the vibrating device. do.

According to some embodiments of the present specification, the vibration signal line unit may include an insulating layer, a first layer on the insulating layer, and a second layer on the first layer.

According to some embodiments of the present specification, the first layer may be a wiring for applying a signal to the vibrating device.

According to some embodiments of the present specification, a display panel may include a first substrate, a pixel array unit disposed on the first substrate, and a second substrate disposed over the pixel array unit.

According to some embodiments of the present specification, the vibration signal line unit may be on the second substrate.

According to some embodiments of the present specification, a flexible film connected to the pad unit, a source PCB connected to the flexible film, and a cable connected to the source PCB at one side of the display panel may be further included, and the vibration signal line unit may include the pad unit. and can be connected to the cable by the source PCB.

According to some embodiments of the present specification, the flexible film may include a signal transmission line connected to the pad unit, and the vibration signal line unit may be connected to the signal transmission line by the pad unit.

According to some embodiments of the present specification, the source PCB may be between the vibration signal line unit and the flexible film.

According to some embodiments of the present specification, a heat dissipation member between the vibration signal line unit and the source PCB may be further included.

According to some embodiments of the present specification, a support member disposed on the rear surface of the display panel may be further included, and the support member may include a hole overlapping the vibrating device.

According to some embodiments of the present specification, the vibration device may include two or more vibration modules.

According to some embodiments of the present specification, each of the two or more vibration modules may include a first portion of an inorganic material and a second portion of an organic material disposed between the first portion.

According to some embodiments of the present specification, the arrangement direction of the first part and the second part may be the same as the horizontal direction of the display panel, the same as the vertical direction, or a combination thereof.

According to some embodiments of the present specification, the first part may have a piezoelectric characteristic, and the second part may have a ductility characteristic.

According to some embodiments of the present specification, each of the two or more vibration modules includes a vibration layer, a first protection member disposed on a first surface of the vibration layer, and a second protection member disposed on a second surface different from the first surface of the vibration layer may include more.

According to some embodiments of the present specification, a first electrode layer disposed between the vibration layer and the first protective member, and a second electrode layer disposed between the vibration layer and the second protective member may be further included.

According to some embodiments of the present specification, a pad member disposed between two or more vibration modules may be further included.

According to some embodiments of the present specification, the pad member may further include a vibration layer, a first protection member disposed on a first surface of the vibration layer, and a second protection member disposed on a second surface different from the first surface of the vibration layer. have.

According to some embodiments of the present specification, the display panel may further include a support member disposed on the rear surface of the display panel, and a pad member disposed between the vibrating device and the support member.

According to some embodiments of the present specification, the display panel includes a first region and a second region, and the vibrating device includes a first vibrating device vibrating the first region and a second vibrating device vibrating the second region, , the vibration signal line unit may be connected to each of the first vibration device and the second vibration device.

An apparatus according to an embodiment of the present specification includes a vibrating object including a pad, a vibrating device disposed on the vibrating object, and a vibration signal line unit connected to the pad and applying a signal to the vibrating device.

According to some embodiments of the present specification, the vibrating object includes a plate, and the plate may include a metal material or a single non-metal or a composite non-metal material of at least one of wood, plastic, glass, cloth, and leather.

According to some embodiments of the present specification, the vibrating object may include a display panel having a plurality of pixels displaying an image, or a non-display panel of at least one of a light emitting diode lighting panel, an organic light emitting lighting panel, and an inorganic light emitting lighting panel. can

According to some embodiments of the present specification, the vibrating object includes a display panel having a plurality of pixels for displaying an image, or includes a vehicle interior material, a vehicle glass window, a ceiling of a building, an interior material of a building, a glass window of a building, an interior material of an aircraft, and an aircraft. It may include one or more of the glass windows.

According to some embodiments of the present specification, the vibration device may include a plurality of vibration generators.

According to some embodiments of the present specification, each of the plurality of vibration generators may include a plurality of vibration modules.

According to some embodiments of the present specification, each of the plurality of vibration generators may be stacked to be displaced in the same direction as each other.

According to some embodiments of the present specification, it may further include a pad member disposed on the rear surface of each of the plurality of vibration generators.

According to some embodiments of the present specification, the display panel may further include a support member disposed on the rear surface of the vibrating object, and a pad member disposed between the vibrating device and the support member.

According to some embodiments of the present specification, the pad member may be configured in the same way as the vibrating device.

A method of manufacturing a device according to an embodiment of the present specification includes disposing a vibration device on a rear surface of a display panel including a pad part, forming a vibration signal line part connecting the pad part and the vibration device on a rear surface of the display panel, and and connecting the driving circuit unit to the pad unit.

According to some embodiments of the present specification, the forming of the vibration signal line unit on the rear surface of the display panel includes forming an insulating layer between the pad unit and the vibrating device, forming a first layer on the insulating layer, and the first and forming a second layer on the layer, wherein the first layer may be a wiring for applying a signal to the vibrating device.

According to some embodiments of the present specification, the method may further include forming a heat dissipation member on the vibration signal line unit.

According to some embodiments of the present specification, the driving circuit unit further includes a flexible film connected to the pad unit, a source PCB connected to the flexible film, a source PCB on one side of the display panel, and a cable connected to the source PCB, and the heat dissipation member includes a vibration signal It may be between the line part and the source PCB.

Although the embodiments of the present specification have been described in more detail with reference to the accompanying drawings, the present specification is not necessarily limited to these embodiments, and various modifications may be made within the scope without departing from the technical spirit of the present specification. . Accordingly, the embodiments disclosed in the present specification are for explanation rather than limiting the technical spirit of the present specification, and the scope of the technical spirit of the present specification is not limited by these embodiments. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. The protection scope of the present specification should be construed by the claims, and all technical ideas within the scope equivalent thereto should be construed as being included in the scope of the present specification.

100: display panel
300: support member
600: partition
200, 210-1, 210-2, 210-3, 210-4, 220-1, 220-2: Vibration device
701, 702: pad member
30: flexible film
40: drive IC
50: source PCB
70: control board
80: sound processing circuit
140: vibration signal line unit

Claims (34)

a display panel for displaying an image and including a pad part;
a vibrating device disposed on the rear surface of the display panel and vibrating the display panel; and
A device comprising a vibration signal line portion between the pad portion and the vibration device. The method of claim 1,
The vibration signal line unit,
insulating layer;
a first layer on the insulating layer; and
and a second layer overlying the first layer. 3. The method of claim 2,
wherein the first layer is a wire that applies a signal to the vibrating device. The method of claim 1,
The display panel is
a first substrate;
a pixel array unit on the first substrate; and
and a second substrate overlying the pixel array portion. 5. The method of claim 4,
and the vibration signal line portion is on the second substrate. The method of claim 1,
a flexible film connected to the pad part;
a source PCB connected to the flexible film and disposed on one side of the display panel; and
Further comprising a cable connected to the source PCB,
The vibration signal line part is connected to the cable by the pad part and the source PCB. 7. The method of claim 6,
The flexible film includes a signal transmission line connected to the pad part,
The vibration signal line unit is connected to the signal transmission line by the pad unit. 7. The method of claim 6,
The source PCB is between the vibration signal line unit and the flexible film. 7. The method of claim 6,
The apparatus further comprising a heat dissipation member disposed between the vibration signal line unit and the source PCB. The method of claim 1,
Further comprising a support member disposed on the rear surface of the display panel,
The support member includes a hole overlapping the vibrating device. The method of claim 1,
wherein the vibrating device comprises two or more vibrating modules. 12. The method of claim 11,
wherein each of the two or more vibration modules comprises a first portion of inorganic material and a second portion of organic material disposed between the first portion. 13. The method of claim 12,
An arrangement direction of the first portion and the second portion is the same as a horizontal direction of the display panel, the same as a vertical direction, or a combination thereof. 13. The method of claim 12,
The first part has piezoelectric properties,
and the second portion has a ductile property. 12. The method of claim 11,
Each of the two or more vibration modules,
vibrating layer;
a first protection member disposed on the first surface of the vibration layer; and
and a second protective member disposed on a second surface different from the first surface of the vibrating layer. 16. The method of claim 15,
a first electrode layer between the vibration layer and the first protective member; and
and a second electrode layer between the vibrating layer and the second protective member. 12. The method of claim 11,
The apparatus further comprising a pad member disposed between the two or more vibration modules. 18. The method of claim 17,
The pad member,
vibrating layer;
a first electrode layer disposed on a first surface of the vibrating layer; and
and a second electrode layer disposed on a second side different from the first side of the vibrating layer. The method of claim 1,
a support member disposed on a rear surface of the display panel; and
and a pad member between the vibrating device and the support member. The method of claim 1,
The display panel includes a first area and a second area,
The vibrating device includes a first vibrating device vibrating the first region and a second vibrating device vibrating the second region,
The vibration signal line unit is connected to each of the first vibration device and the second vibration device. a vibrating object including a pad part;
a vibrating device disposed on the vibrating object; and
and a vibration signal line unit connected to the pad unit and configured to apply a signal to the vibrating device. 22. The method of claim 21,
The vibrating object includes a plate,
wherein the plate comprises a metallic material or a single non-metallic or composite non-metallic material of one or more of wood, plastic, glass, cloth, and leather. 22. The method of claim 21,
The vibrating object includes a display panel having a plurality of pixels for displaying an image, or a non-display panel of at least one of a light emitting diode lighting panel, an organic light emitting lighting panel, and an inorganic light emitting lighting panel. 22. The method of claim 21,
The vibrating object includes a display panel having a plurality of pixels for displaying an image, or includes at least one of a vehicle interior material, a vehicle glass window, a ceiling of a building, an interior material of a building, a glass window of a building, an interior material of an aircraft, and a glass window of an aircraft , Device. 25. The method of any one of claims 1 to 10 and 21 to 24,
wherein the vibrating device comprises a plurality of vibration generators. 26. The method of claim 25,
wherein each of the plurality of vibration generators comprises a plurality of vibration modules. 26. The method of claim 25,
wherein each of the plurality of vibration generators is stacked to be displaced in the same direction as each other. 26. The method of claim 25,
The apparatus further comprising a pad member disposed on a rear surface of each of the plurality of vibration generators. 25. The method of any one of claims 1 to 10 and 21 to 24,
a support member disposed on a rear surface of the display panel or the vibrating object; and
and a pad member between the vibrating device and the support member. 30. The method of claim 29,
The pad member is configured the same as the vibrating device. disposing a vibrating device on a rear surface of a display panel including a pad unit;
forming a vibration signal line part connecting the pad part and the vibrating device on a rear surface of the display panel; and
and connecting a driving circuit unit to the pad unit. 32. The method of claim 31,
The step of forming the vibration signal line portion on the rear surface of the display panel,
forming an insulating layer between the pad part and the vibrating device;
forming a first layer on the insulating layer; and
forming a second layer on the first layer;
wherein the first layer is a wiring for applying a signal to the vibrating device. 32. The method of claim 31,
The method of manufacturing a device further comprising the step of forming a heat dissipation member on the vibration signal line portion. 34. The method of claim 33,
The driving circuit unit,
a flexible film connected to the pad part;
a source PCB connected to the flexible film and disposed on one side of the display panel; and
Further comprising a cable connected to the source PCB,
The method of claim 1, wherein the heat dissipation member is between the vibration signal line unit and the source PCB.

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