KR20220097279A - Apparatus and vibration generating apparatus - Google Patents

Abstract

An apparatus according to some embodiments of the present specification includes: a vibration member; a first cover which is disposed on a rear surface of the vibration member; a vibration device which is disposed on a rear surface of the first cover; a first member which is disposed on the rear surface of the first cover, and is located on a rear surface of the vibration device; and a rear vibration member which is disposed on the first member.

Description

DEVICES AND VIBRATION GENERATING APPARATUS

The present specification relates to a device and a vibration generating device.

A device (or electronic device), for example, a display device, may include a display panel for displaying an image and a separate speaker for providing sound. When a separate speaker is disposed in the device, the speaker takes up space, so there is a problem that the design and space arrangement of the device are limited.

Since the sound output from the speaker travels backward or downward of the device, there is a problem in that the sound quality is deteriorated due to interference between the sound (or sound wave) reflected from the wall or the ground (or floor). For this reason, there is a problem in that it is difficult to accurately transmit sound, and there is a problem in that a sense of immersion of a viewer or a user is lowered.

Accordingly, the inventors of the present specification recognized the above-mentioned problems, and conducted various experiments to implement a device capable of improving sound quality and sound pressure characteristics. Through various experiments, a device and a vibration generating device having a new structure that can improve sound quality and sound pressure characteristics have been invented.

An object to be solved according to an embodiment of the present specification is to vibrate a vibrating member (or an indication member) to generate a sound in the front of the device, and to provide a device and a vibration generating device capable of improving acoustic characteristics and/or sound pressure characteristics will do

An object to be solved according to an embodiment of the present specification is a device capable of generating haptic feedback by vibrating a display member (or a vibrating member), and improving response speed, strength, and vibration characteristics of the haptic feedback and a vibration generating device will provide

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.

An apparatus according to an embodiment of the present specification includes a vibrating member, a first cover disposed on the rear surface of the vibrating member, a vibration device disposed on the rear surface of the first cover, and a first vibration device disposed on the rear surface of the first cover and disposed on the rear surface of the vibrating device a member, and a rear oscillation member disposed on the first member.

A vibration generating device according to an embodiment of the present specification includes a first member including a first hole and a second hole, a first vibration device disposed in the first hole, a second vibration device disposed in the second hole, and a vibration member and a second member connected to the rear surface and covering the first member and the first vibration device and the second vibration device, and a rear surface vibration member disposed on the second member.

Specific details according to various examples of the present specification other than the means for solving the above-mentioned problems are included in the description and drawings below.

The device according to the embodiment of the present specification may output sound to the front of the display panel or the vibrating member, and may output sound with improved sound quality, sound performance, and/or sound pressure characteristics, so that viewers (or users) feel immersive. can increase

The device according to the embodiment of the present specification may generate haptic feedback according to vibration of the display panel or the vibrating member, and may improve response speed, intensity, and vibration characteristics of the haptic feedback.

The vibration generating apparatus according to the embodiment of the present specification may output a sound to the front of the vibrating member (or a vibrating object), and may output a sound with improved sound quality, sound performance, and/or sound pressure characteristics.

The vibration generating device according to the embodiment of the present specification may generate haptic feedback according to the vibration of the vibrating member (or the vibrating object).

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 an exploded perspective view of the device shown in FIG. 1 ;
Fig. 3 is a cross-sectional view taken along line II' shown in Fig. 1;
FIG. 4 is an enlarged view of part 'A' shown in FIG. 3 .
FIG. 5 is an enlarged view of part 'B' shown in FIG. 3 .
FIG. 6 is an enlarged view of part 'C' shown in FIG. 3 .
7 is a view showing a vibration generator according to an embodiment of the present specification.
FIG. 8 is a cross-sectional view taken along line II-II' shown in FIG. 7 .
9A to 9F are views illustrating a vibrating unit of a vibration generator according to an embodiment of the present specification.
10 and 11 are other enlarged views of part 'B' shown in FIG. 3 .
12 is another enlarged view of part 'B' shown in FIG. 3 .
FIG. 13 is another enlarged view of part 'C' shown in FIG. 3 .
14 is an exploded view of an apparatus according to another embodiment of the present specification.
Fig. 15 is a cross-sectional view taken along line II' shown in Fig. 1 of the connection structure of the device of Fig. 14;
FIG. 16 is an enlarged view of part 'D' shown in FIG. 15 .
FIG. 17 is a view showing the vibration generator shown in FIG. 14 .
Fig. 18 is another cross-sectional view taken along line II' shown in Fig. 1 of the connection structure of the device of Fig. 14;
19 is an enlarged view of part 'E' shown in FIG. 18 .
20 is a graph showing the sound pressure level characteristics of the device according to the embodiment of the present specification.
21 is a graph showing another sound pressure level characteristic of the device according to the embodiment of the present specification.
22 is a view showing a rear surface of an apparatus according to another embodiment of the present specification.
23 is an exploded perspective view of the device shown in FIG. 22;
24 is a diagram illustrating a measurement point on a display member for measuring vibration acceleration in an apparatus 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, the case in which the plural is included is 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. For example, when one component or layer is disposed on another component or layer, a third component or layer may be interposed therebetween.

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.

1st, 2nd, 1-1, 1-2, 2-1, 2-2, 1st, 2nd, A, B, (a), (b), etc. describe various components , but these components 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.

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 is indirectly connected unless specifically stated otherwise. It should be understood that other components may be “interposed” between each component that may be or may be connected to.

Where a component or layer is described as being on or coupled to another component or layer, it should be understood that the component is directly or indirectly connected to or can be connected to, or that there are intervening components or layers. something to do. In addition, when it is described that one component is disposed above or below another component, the components may be disposed to be directly connected to each other or may be disposed without being directly connected to each other.

“At least one” should be understood to include all combinations of one or more of the associated elements. For example, “at least one of the first, second, and third components” means each individual component, each of the first, second, and third components, as well as three components. It can be said to contain a combination of all three components of two.

As used herein, the term “device” may include a display device such as a liquid crystal display (LCD) or an organic light emitting display (OLED) including a display panel and a driver for driving the display panel. And, in the present specification, "device" means a laptop computer, a television, a computer monitor, a portable computer, a vehicle or an automotive apparatus or vehicle, which is a complete product or final product including LCD or OLED. A set electronic apparatus or set device or set device, such as a mobile electronic apparatus such as a smart phone or an electronic pad, etc. apparatus) may also be included.

Accordingly, the device in the present specification may include a display device itself such as an LCD or OLED, and an application product including LCD or OLED, or even a set device, which is a device for end-users.

In addition, in some embodiments, an LCD or OLED 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 LCD or OLED may be distinguished and 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.

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 the present specification, a device including a vibration device may be applied to a vehicle as a user interface module such as a central control panel in an automobile. For example, such a display panel may be implemented between occupants of two front seats so that vibrations of the display panel are propagated toward the interior of the vehicle. Thus, the audio experience in the vehicle can be improved compared to having speakers only on the interior sides of the vehicle.

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

The accompanying drawings are provided to help understanding of the embodiments of the present specification, and embodiments are provided together with detailed descriptions. However, the technical features of the present embodiment are not limited to specific drawings, and features disclosed in the drawings may be combined with each other to form a new embodiment.

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.

1 is a diagram illustrating an apparatus according to an embodiment of the present specification.

Referring to FIG. 1 , an apparatus according to an embodiment of the present specification may include a display member 200 . For example, the display member 200 may display an image, for example, an electronic image or a digital image, or a still image or a video image. The device may generate acoustic and/or haptic feedback (or haptic vibration) according to the vibration of the display member 200 . For example, the display device may generate the first sound and/or first haptic feedback in one area and generate the second sound and/or the second haptic feedback in the other area.

According to the embodiment of the present specification, the device may output the sound S1 and S2 (or the vibrating sound or the display vibrating sound) according to the vibration of the display member 200 for displaying an image. For example, in the device , the display member 200 may be vibrated by a vibrating device to generate the sounds S1 and S2. Accordingly, the device according to the embodiment of the present specification uses the display member 200 for sound generation and/or haptic feedback. It can be used as a diaphragm.

The device according to the embodiment of the present specification may output the sounds S1 and S2 to the front of the screen FD by using the display member 200 as a diaphragm for sound generation, and through this, accurate sound transmission is possible, The sound quality may be improved and the immersion of the viewer or user may be improved. For example, the display member 200 may be a vibrating member, a vibrating object, a display panel, or a vibrating plate, but is not limited thereto.

FIG. 2 is an exploded perspective view of the device shown in FIG. 1 ; Fig. 3 is a cross-sectional view taken along line II' shown in Fig. 1; FIG. 4 is an enlarged view of part 'A' shown in FIG. 3 .

1 to 4 , the device according to the embodiment of the present specification includes a front member 100 , a display member 200 , a guide member 300 , a first cover 400 , and one or more vibration devices 500 . , a first member 600 , and a second cover 700 may be included. The configuration of the device is not limited thereto.

The front member 100 may be the frontmost structure of the device. For example, the front member 100 may be disposed on the front surface of the display member 200 to protect the screen of the display member 200 . For example, the front member 100 may protect the display member 200 from external impact by covering the front surface of the display member 200 . In addition, the front member 100 may generate a sound S and/or haptic feedback by vibrating together with the vibration of the display member 200 . For example, the front member 100 may generate different sounds S1 and S2 and/or haptic feedback in different regions.

For example, the front member 100 may be made of a transparent plastic material, a glass material, or a reinforced glass material. According to the embodiment of the present specification, the front member 100 may have any one of sapphire glass and gorilla glass or a stacked structure thereof. According to another embodiment of the present specification, the front member 100 may include a transparent plastic material such as polyethylene terephthalate (PET). The front member 100 may be made of tempered glass in consideration of scratches and transparency. For example, the front member 100 may be a front structure, a front window, a cover window, a glass window, a cover screen, a screen cover, or a window glass, but is not limited thereto.

For example, the front member 100 may cover the remaining non-display area except for the display area of the display member 200 . For example, the front member 100 may include a transparent area overlapping the display area of the display member 200 and a non-transparent area (or light blocking area) overlapping the non-display area of the display member 200 . . For example, the non-transparent area may cover not only the non-display area of the display member 200 but also the non-display area in which an image is not displayed in the device.

The front member 100 may have a shape corresponding to the outer shape or outer edge of the display member 200 . For example, the front member 100 may have a polygonal shape including a rectangular shape or a square shape, or a non-polygonal shape including at least one side having a curved shape, but is not limited thereto.

The device according to the embodiment of the present specification may further include a first connecting member 110 .

The first connection member 110 may be disposed on a side surface of the front member 100 . For example, the first connection member 110 may be disposed to surround the side surface of the front member 100 . The first connection member 110 may be disposed to cover at least one of each side and each corner of the front member 100 . The first connection member 110 may be disposed between the front member 100 and the second cover 700 . The first connection member 110 may be disposed between the front member 100 and the upper inner surface of the second cover 700 . The first connecting member 110 may connect or couple the front member 100 and the second cover 700 , and fill the space between the front member 100 and the second cover 700 to fill the front member 100 . ) and the second cover 700 can prevent light from leaking (lateral light leakage).

According to the embodiment of the present specification, the first connection member 110 may be made of a silicone-based or ultraviolet (UV) cured sealing material (or resin). The first connecting member 110 may be made of a sealing material of an ultraviolet (UV) curing series when the process tact time is considered. The first connection member 110 may be colored (eg, blue, red, cyan, or black), but is not limited thereto. For example, the first connecting member 110 may be made of a colored resin or a light blocking resin for preventing side light leakage.

The display member 200 is disposed on the rear surface (or the rear surface) of the front member 100 , and may display an image. For example, the image may include an electronic image, a digital image, a still image, or a video image. For example, the display member 200 may include a liquid crystal display panel, and the type of the display member 200 is not limited thereto. For example, the display member 200 may include a display panel such as a light emitting display panel, an electrophoretic display panel, a micro light emitting diode display panel, an electrowetting display panel, or a quantum dot light emitting display panel.

According to an exemplary embodiment of the present specification, a rear surface (or a rear surface) of the display member 200 may include a middle portion CP and an edge portion EP. For example, the rear surface of the display member 200 may include a middle portion CP and two edge portions EP1 and EP2 parallel to each other with the middle portion CP interposed therebetween.

The middle portion CP of the display member 200 may include a first intermediate portion C1 and a second intermediate portion C2 . For example, the first middle part C1 may be a left part (or a left middle part) of the middle part CP, and the second middle part C2 may be a right part (or right middle part) of the middle part CP. part) can be When the first middle portion C1 and the second intermediate portion C2 are based on the first direction X (or the horizontal direction) of the display member 200 , the first intermediate line ( Alternatively, the horizontal middle line) CL1 may be left and right symmetrical. The first middle part C1 and the first edge part EP1 constitute the first part (or the left part) P1 of the display member 200 , and the second middle part C2 and the second edge part ( EP2) may constitute the second portion (or the right portion) P2 of the display member 200 .

The display member 200 according to the embodiment of the present specification may include a display panel 210 and a backlight 230 . The configuration of the display member 200 is not limited thereto.

The display panel 210 is disposed on the rear side of the front member 100 and may display an image. For example, the image may include an electronic image, a digital image, a still image, or a video image.

The display panel 210 according to the embodiment of the present specification may display an image using light emitted from the backlight 230 . Also, the display panel 210 may be a touch sensor that senses a touch on the front member 100 , for example, a touch by a user. The display panel 210 may output a sound S according to the vibration of the vibration device 500 or generate haptic feedback (or haptic vibration) in response to a touch.

The display panel 210 may be disposed on the rear side of the front member 100 through a bonding process using a panel bonding member (or a connecting member or a transparent adhesive member). The panel bonding member may include, but is not limited to, a pressure sensitive adhesive (PSA), an optically clear adhesive (OCA), or an optically clear resin (OCR).

The display panel 210 according to the exemplary embodiment of the present specification may have a polygonal shape including a rectangular shape or a square shape, or a non-polygonal shape including at least one side having a curved shape, but is not limited thereto. The display panel 210 may have the same or different shape as the front member 100 . For example, the front member 100 may have a rectangular shape, and the display panel 210 may have a rectangular shape having a size smaller than that of the front member 100 . As another example, the front member 100 may have a non-polygonal shape, and the display panel 210 may have a non-polygonal shape or a rectangular shape having a size smaller than that of the front member 100 .

The display panel 210 may be a diaphragm that vibrates according to vibration (or driving) of the vibrating device 500 and outputs sounds S1 and S2 to the front FD. For example, the display panel 210 may simultaneously or sequentially forward the first sound S1 of the first sound range and the second sound S2 of the second sound range according to the vibration of the vibrating device 500 forward FD. can be printed out. According to the embodiment of the present specification, the first sound range and the second sound range may be the same or different. For example, the first sound S1 of the first sound range may be output from the first portion (or the left portion) P1 of the display panel 210 to the front FD, and the second sound of the second sound range may be output. S2 may be output from the first part (or the right part) P2 of the display panel 210 to the front FD. The display panel 210 may be a diaphragm that vibrates according to the vibration of the vibrating device 500 to generate haptic feedback. For example, the display panel 210 may generate the first haptic feedback in the left part P1 and generate the second haptic feedback in the right part P2 according to the vibration of the vibration device 500 . For example, the display panel 210 may generate a first haptic feedback from the first edge portion EP1 and may generate a second haptic feedback from the second edge portion EP2 .

Referring to FIG. 4 , the display panel 210 according to the exemplary embodiment of the present specification includes a first substrate 211 , a second substrate 213 , a first polarizing member 215 , and a second polarizing member 217 . may include The configuration of the display panel 210 is not limited thereto.

The first substrate 211 may be a lower substrate or a thin film transistor array substrate. For example, the first substrate 211 may include a pixel array including a plurality of pixels formed in each pixel area intersected by a plurality of gate lines and a plurality of data lines. Each of the plurality of pixels may include a thin film transistor connected to a gate line and a data line, a pixel electrode connected to the thin film transistor, and a common electrode formed adjacent to the pixel electrode to supply a common voltage.

The first substrate 211 may further include a pad part provided on the first edge and a gate driving circuit provided on the second edge. The pad unit may supply a signal supplied from the outside to the pixel array and 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 a plurality of gate input pads connected to a gate driving circuit through a gate control signal line.

The gate driving circuit may be embedded (or integrated) on the first edge of the first substrate 211 so as to be connected to the plurality of gate lines one-to-one. For example, the gate driving circuit may be a shift resistor including a transistor formed by the same process as a thin film transistor provided in the pixel region. Alternatively, the gate driving circuit may be implemented in the form of an integrated circuit instead of being embedded in the first substrate 211 and configured in the driving circuit.

The second substrate 213 may be an upper substrate or a color filter array substrate. For example, the second substrate 213 may include a pixel pattern including an opening region overlapping each pixel region formed on the first substrate 211 , and a color filter layer formed in the opening region. The second substrate 213 may have a size smaller than that of the first substrate 211 , but is not limited thereto. For example, the second substrate 213 may overlap a portion other than the first edge of the first substrate 211 . The second substrate 213 may be bonded to the remaining portions except for the first edge of the first substrate 211 with the liquid crystal layer interposed therebetween by a sealant.

The liquid crystal layer may be disposed between the first substrate 211 and the second substrate 213 . For example, the liquid crystal layer may be formed of a liquid crystal whose arrangement direction of liquid crystal molecules is changed according to an electric field formed by a data voltage applied to a pixel electrode and a common voltage for each pixel.

The first polarizing member 215 may be attached to the rear surface of the first substrate 211 to polarize light incident from the backlight 230 and traveling to the liquid crystal layer. The second polarizing member 217 may be attached to the upper surface of the second substrate 213 to polarize light incident through the second substrate 213 and emit it to a front surface of the device.

The display panel 210 according to the embodiment of the present specification drives 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, thereby displaying an image according to the light passing through the liquid crystal layer. can

The display panel 210 according to the embodiment of the present specification may further include a touch electrode layer for sensing a touch on the front member 100 .

The touch electrode layer may include a plurality of touch electrodes for sensing a touch, for example, a touch by a user. The plurality of touch electrodes may serve as a touch sensor for sensing a touch according to a mutual capacitance method or a self capacitance method. For example, the touch electrode layer may be implemented as a touch panel including a plurality of touch electrodes. For example, the touch panel may be an add-on type touch panel or an in-cell type touch panel.

In the display panel 210 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 210 according to another embodiment of the present specification may have a shape in which the display panel 210 according to the embodiment of the present specification is vertically inverted. In this case, the pad portion of the display panel 210 according to another exemplary embodiment of the present specification may be covered by a separate mechanism.

The display panel 210 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 210 may be implemented on at least one of a side edge portion and a second edge portion parallel to each other in the display panel 210 . A portion of one edge and/or a portion of the other edge of the display panel 210 that implements the bending portion may include only the non-display area, or may include an edge of the display area and the non-display area. The display panel 210 including the bending part implemented by bending the non-display area may have a one-side bezel bending structure or a double-side bezel bending structure. In addition, the display panel 210 including the edge portion of the display area and the bending portion implemented by bending of the non-display area may have one side active bending structure or both side active bending structures.

The backlight 230 is disposed on the rear surface of the display panel 210 and irradiates light to the rear surface of the display panel 210 . For example, the backlight 230 may be disposed between the display panel 210 and the first cover 400 and supported by the first cover 400 .

The backlight 230 according to the embodiment of the present specification may include a light guide plate 231 , a light source unit 233 , a reflective sheet 235 , and an optical sheet unit 237 . The configuration of the backlight 230 is not limited thereto.

The light guide plate 231 is disposed on the first cover 400 to overlap the display panel 210 , and may include a light incident surface provided on at least one side. For example, the light guide plate 231 may include a light-transmitting plastic or glass material. The light guide plate 231 may advance (or exit) the light incident on the light incident surface from the light source unit 233 toward the display panel 210 . For example, the light guide plate 231 may be expressed as a light guide member or a flat light source, but is not limited thereto.

The light source unit 233 may irradiate light to the light incident surface provided on the light guide plate 231 . For example, the light source unit 233 may be disposed on one side of the light guide plate 231 to overlap the edge of the display panel 210 . For example, the light source unit 233 may be disposed between the guide member 300 and the first cover 400 . For example, the light source unit 233 may be disposed between the support unit 310 of the guide member 300 and the first cover 400 . For example, the light source unit 232 may include a plurality of light emitting diode devices mounted on a printed circuit board for a light source and irradiating light to the light incident surface of the light guide plate 231 . For example, the guide member 300 may be a panel guide or a guide panel, but is not limited thereto.

The reflective sheet 235 may be disposed on the rear surface of the light guide plate 231 . For example, the reflective sheet 235 may be disposed between the rear surface of the light guide plate 231 and the first cover 400 . The reflective sheet 235 may minimize light loss by reflecting the light incident from the light guide plate 231 to the rear of the light guide plate 231 .

The optical sheet unit 237 may be disposed on the front surface of the light guide plate 231 . For example, the optical sheet unit 237 may improve luminance characteristics of light emitted from the light guide plate 231 . For example, the optical sheet unit 237 may include a lower diffusion sheet, a lower prism sheet, and an upper prism sheet, but is not limited thereto. For example, the optical sheet unit 237 may be formed of a laminated combination of one or more of a diffusion sheet, a prism sheet, a double brightness enhancement film, and a lenticular sheet, or a single composite sheet having light diffusion and light collection functions. .

The display member 200 according to the exemplary embodiment of the present specification may further include a driving circuit unit.

The driving circuit unit may be connected to the pad unit provided at the first edge of the display panel 210 , and may display an image corresponding to video data supplied from the display host system on each pixel of the display panel 210 . For example, the driving circuit unit may be connected to a pad unit provided at the first edge of the first substrate 211 of the display panel 210 . For example, the driving circuit unit may sense a touch, for example, a touch by a user, through a plurality of touch electrodes disposed on the touch electrode layer of the display panel 210 .

According to the embodiment of the present specification, the driving circuit unit may be disposed on the first cover 400 . For example, the driving circuit unit may extend from the first edge of the display panel 210 along side surfaces and rear surfaces of the first cover 400 . For example, the driving circuit unit may be fixed to or connected to the rear surface of the first cover 400 . For example, the driving circuit unit may include at least one flexible circuit film, at least one data driving integrated circuit, a printed circuit board, a control circuit, and a connector, but the configuration of the driving circuit unit is not limited thereto. The connector may be a user connector, and is not limited to terminology.

Each of the at least one flexible circuit film may be attached to the pad portion provided at the first edge of the first substrate 211 of the display panel 210 by a film attaching process. Each of the at least one flexible circuit film is bent to surround at least one side (or first side) of the display panel 210 and the backlight 230 , and thus one edge (or the first back side) of the rear surface of the first cover 400 . edge) to the printed circuit board.

The at least one data driving integrated circuit may be individually mounted on each of the at least one flexible circuit film. The data driving integrated circuit may receive pixel data and a data control signal provided from the control circuit, convert the pixel data into an analog data signal for each pixel according to the data control signal, and supply it to a corresponding data line. Optionally, each of the at least one data driving integrated circuit may be directly mounted on the first edge of the first substrate 211 by a chip bonding process and connected to a plurality of data lines. In this case, the at least one flexible circuit film is omitted. can be

The printed circuit board may be commonly connected to each of the at least one flexible circuit film. For example, the printed circuit board may be connected to the display panel 210 through at least one flexible circuit film. For example, the printed circuit board is electrically connected to the other side of each of at least one flexible circuit film by a film attaching process via an anisotropic conductive film, and the first cover ( 400) may be disposed on the first rear edge.

The control circuit may be disposed (or mounted) on a printed circuit board. For example, the control circuit may receive a timing synchronization signal and image data supplied from the display host system through the connector. For example, the timing synchronization signal may include, but is not limited to, a vertical synchronization signal, a horizontal synchronization signal, a data enable signal, and a main clock signal.

The control circuit may generate, based on the timing synchronization signal, a gate control signal for controlling a driving timing of the gate driving circuit and a data control signal for controlling a driving timing of each of the at least one data driving integrated circuit. For example, the gate control signal may include at least one gate start signal, a plurality of gate shift clocks, and the like. The data control signal may include a source start signal, a source shift clock, and a source output enable signal.

The connector may receive various signals including an acoustic signal from the display host system and provide the received signal to the control circuit.

According to the embodiment of the present specification, the driving circuit unit may further include a touch driving circuit connected to the touch electrode layer of the display panel 210 .

The touch driving circuit generates touch raw data by sensing a touch, for example, a touch by a user, through each of a plurality of touch electrodes disposed on the touch electrode layer, and a touch based on the generated touch raw data coordinate information may be provided to the display host system.

The display host system (or host system) may include a main board, various circuits mounted on the main board, various storage media, peripheral devices, keyboards, power supplies, and the like. Various circuits mounted on the main board include a central control circuit for processing various information, an image processing circuit for processing data under the control of the central control circuit, and a sound processing circuit for processing sound according to the control of the central control circuit can do. The display host system processes various types of information, generates a timing synchronization signal and image data, and provides them to the control circuit, and generates and provides a driving signal including an acoustic signal or a haptic feedback signal to the control circuit. For example, the sound signal may be synchronized with the image data or may not be synchronized with the image data.

The display host system may execute an application program associated with touch coordinates corresponding to touch coordinate information provided from the touch driving circuit or implement a user interface based on a user's touch input. Also, the display host system may generate a driving signal including a haptic feedback signal corresponding to the coordinate information of the touch provided from the touch driving circuit.

The guide member 300 according to the exemplary embodiment of the present specification may be disposed between the display panel 210 and the backlight 230 . For example, the guide member 300 may be disposed between the rear edge portion EP of the display panel 210 and the front edge portion of the backlight 230 . For example, the guide member 300 may support the rear edge portion EP of the display panel 210 . For example, the guide member 300 may cover at least one of an edge portion and a side surface of the front surface of the backlight 230 . For example, the guide member 300 may cover and support the side surface of the first cover 400 .

According to the exemplary embodiment of the present specification, the guide member 300 maintains a gap between the display panel 210 and the backlight 230 and forms a sound transmission space STS between the display panel 210 and the backlight 230 . can be provided

According to the exemplary embodiment of the present specification, the guide member 300 may have a rectangular shape (or a rectangular frame shape) having an opening overlapping the remaining middle portion CP except for the rear edge portion EP of the display panel 210 . can The configuration of the guide member 300 is not limited thereto.

According to the exemplary embodiment of the present specification, since the guide member 300 has a rectangular frame shape having an opening, the guide member 300 includes the rearmost surface of the display panel 210 and the backlight 230 facing each other with the opening therebetween. ), it is possible to prevent or minimize leakage (or loss) of sound pressure transmitted to the sound transmission space (STS) by providing the sound transmission space (STS) between the top surfaces. The sound transmission space STS may be a space for generating sound pressure generated according to vibration of the backlight 230 . The sound transmission space STS may have an additional function as a panel vibration space for smoothing vibration of the display panel 210 according to sound pressure.

3 and 4 , the second connection member 350 according to the exemplary embodiment of the present specification may be disposed between the edge portion EP of the rear surface of the display panel 210 and the guide member 300 . The third connection member 370 may be disposed between the edge portion of the front surface of the backlight 230 and the guide member 300 .

According to the exemplary embodiment of the present specification, the guide member 300 may be disposed or located on the edge portion EP of the rear surface of the display panel 210 via the second connection member 350 . For example, the guide member 300 may be disposed or positioned on the edge of the front surface of the backlight 230 via the third connecting member 370 .

According to the exemplary embodiment of the present specification, the front surface of the second connection member 350 is disposed or connected to the edge portion EP of the rear surface of the first substrate 211 of the display panel 210 , and the second connection member 350 is connected to each other. ) is disposed or connected to the front surface of the guide member 300 , so that the display panel 210 and the guide member 300 may be connected to the second connection member 350 . Accordingly, the display panel 210 may be fixed or connected to the guide member 300 through the second connection member 350 .

The second connecting member 350 is disposed on the edge portion EP of the rear surface of the first substrate 211 and surrounds the side surface of the first polarizing member 215 , thereby lateral light leakage generated from the first polarizing member 215 . can prevent The second connection member 350 may provide a sound transmission space STS between the display panel 210 and the guide member 300 . For example, the sound transmission space STS may be formed in a four-sided sealed or closed loop shape by one or both of the guide member 300 and the second connecting member 350 , but is not limited thereto.

According to the embodiment of the present specification, the front surface of the third connection member 370 is disposed on or connected to the rear surface of the guide member 300 , and the rear surface of the third connection member 370 is disposed on or connected to the front surface of the backlight 230 . By being connected, the guide member 300 and the backlight 230 may be connected to the third connecting member 370 . Accordingly, the backlight 230 may be fixed to or connected to the guide member 300 through the third connection member 370 .

According to the embodiment of the present specification, the guide member 300 further includes a groove 390 into which the third connection member 370 is inserted (or accommodated), and the third connection member 370 is in the groove 390 . It can be inserted (or accommodated). For example, the groove 390 may be formed on the rear surface of the guide member 300 overlapping the front surface of the backlight 230 . For example, the third connecting member 370 may have a thickness (or height) capable of connecting the backlight 230 and the guide member 300 even when inserted (or accommodated) in the groove 390 . For example, the third connecting member 370 may have a thickness (or height) equal to the thickness (or height) of the groove 390 or greater than the thickness (or height) of the groove 390 within an error range. According to the embodiment of the present specification, since the third connecting member 370 is inserted or accommodated in the groove 390 , an increase in the thickness of the device by the third connecting member 370 can be reduced or minimized. In addition, since the height or thickness of the third connection member 390 can be excluded when setting the height of the sound transmission space STS, the height of the sound transmission space STS is between the guide member 300 and the second connection member ( 350) can be set to a combined thickness or height. Accordingly, since the height of the sound transmission space STS can be controlled, an apparatus capable of outputting a desired sound can be provided.

According to the embodiment of the present specification, the second and third connection members 350 and 370 may include an acrylic-based or urethane-based adhesive member, but is not limited thereto. For example, the second and third connecting members 350 and 370 are acrylic-based having relatively excellent adhesion and high hardness so that the vibration of the guide member 300 can be transmitted to the display panel 210 well. may include an adhesive member of For example, the second and third connection members 350 and 370 may include a double-sided adhesive tape or a double-sided foam adhesive pad having an acrylic adhesive layer, or may include an acrylic adhesive resin cured layer. This specification is not limited thereto.

According to the embodiment of the present specification, the guide member 300 may be made of a plastic material, a metal material, or a mixed material of a plastic material and a metal material, and the material of the guide member 300 is not limited thereto. For example, the guide member 300 may serve as a vibration transmitting member that transmits vibration generated by the vibration device 500 to the edge portion EP of the display panel 210 . Accordingly, the guide member 300 may transmit the vibration generated by the vibration device 500 from the guide member 300 to the display panel 210 without loss while maintaining the rigidity of the display panel 210 . For example, the guide member 300 may include a metal material to transmit the vibration generated by the vibration device 500 to the display panel 210 while maintaining the rigidity of the display panel 210 . it is not going to be

The guide member 300 according to the embodiment of the present specification may include a support portion 310 and a side portion 330 . For example, the guide member 300 has a "┓" shape (gamma shape) or a "┏" shape (or a rotated "┓" shape) cross-sectional structure depending on the connection structure of the support 310 and the side 330 . may have, but is not limited thereto.

The support part 310 according to the embodiment of the present specification may be disposed between the display panel 210 and the backlight 230 . For example, the support 310 is disposed between the edge portion EP of the rear surface of the display panel 210 and the edge portion of the front surface of the backlight 230 , and the edge portion EP of the rear surface of the display panel 210 . can support

According to the embodiment of the present specification, the support 310 may maintain a gap between the display panel 210 and the backlight 230 . For example, the support 310 may provide a sound transmission space STS between the display panel 210 and the backlight 230 . For example, the support part 310 may have a rectangular shape (or a rectangular frame shape) having an opening overlapping the middle part CP except for the edge part EP of the rear surface of the display panel 210 . The configuration of 310 is not limited thereto.

According to the embodiment of the present specification, the second connection member 350 may be disposed on the front surface of the support part 310 . The third connection member 370 may be disposed on the rear surface of the support part 310 . For example, the groove 390 may be disposed on the rear surface of the support part 310 .

The side part 330 according to the embodiment of the present specification is connected to the support part 310 and may cover the side surface of the backlight 230 . For example, the side portion 330 may cover the side surface of the first cover 400 . For example, the side part 330 may be bent from the support part 310 toward the side surface of the first cover 400 to cover and support the side surface of the first cover 400 .

The first cover 400 according to the exemplary embodiment of the present specification may support the display member 200 and cover the rear surface of the display member 200 . For example, the first cover 400 may support the vibration device 500 . The first cover 400 may serve as a diaphragm, and may include a metal material or a metal alloy material. For example, the first cover 400 may be formed of any one of an aluminum (Al) material, a magnesium (Mg) material, a magnesium (Mg) alloy material, a magnesium lithium (Mg-Li) alloy material, and an aluminum (Al) alloy material. It may be made of the above materials, but is not limited thereto.

The first cover 400 may include a rear portion 410 and a side portion 430 . The rear surface 410 may support the rear surface of the display member 200 . The side part 430 may be connected to the edge of the rear part 410 to cover the side surface of the display member 200 , and the configuration of the first cover 400 is not limited thereto.

The rear surface 410 is disposed to cover the rear surface of the display member 200 and may support the display member 200 . For example, the rear part 410 may have a plate-shaped structure. For example, the rear part 410 may support the backlight 230 of the display member 200 and support the vibration device 500 . For example, the rear surface 410 may be in direct contact with the rear surface of the backlight 230 . For example, the rear surface 410 may directly contact the rear surface of the reflective sheet 235 of the backlight 230 . For example, the rear part 410 may directly contact the rear surface of the backlight 230 to transmit vibrations generated according to the vibration of the vibration device 500 to the backlight 230 .

The rear portion 410 (or the first cover 400 ) may include an intermediate area (or a first cover area) MA and an edge area (or a second cover area) EA. For example, the middle area (or first cover area) MA of the rear part 410 (or the first cover 400 ) may correspond (or overlap) with the middle part CP of the display member 200 . have. For example, the edge area (or the second cover area) EA of the rear part 410 (or the first cover 400 ) may correspond to (or overlap) the edge part EP of the display member 200 . have.

The middle area MA of the rear part 410 (or the first cover 400) may include a first middle area (or left middle area) MA1 and a second middle area (or right middle area) MA2. can For example, the first middle area (or left middle area) MA1 of the rear portion 410 (or the first cover 400 ) corresponds to (or overlaps with) the first middle portion C1 of the display member 200 . ) can be For example, the second middle area (or the right middle area) MA2 of the rear portion 410 (or the first cover 400 ) corresponds to (or overlaps with) the second middle portion C2 of the display member 200 . ) can be

The edge area EA of the rear part 410 (or the first cover 400) may include a first edge area (or left edge area) EA1 and a second edge area (or right edge area) EA2. can For example, the first edge area (or left edge area) EA1 of the rear part 410 (or the first cover 400 ) corresponds to (or overlaps with) the first edge part EP1 of the display member 200 . ) can be For example, the second edge area (or right edge area) EA2 of the rear part 410 (or the first cover 400 ) corresponds to (or overlaps with) the second edge part EP2 of the display member 200 . ) can be

According to the embodiment of the present specification, the first middle area MA1 and the first edge area EA1 form the first area (or the left area) A1 of the rear part 410 (or the first cover 400 ). configurable. For example, the second middle area MA2 and the second edge area EA2 may constitute the second area (or right area) A2 of the rear part 410 (or the first cover 400 ). . For example, the first area A1 may correspond to (or overlap with) the first portion P1 of the display member 200 , and the second area A2 may correspond to the second portion P2 of the display member 200 . may correspond (or overlap) with .

The side part 430 may be disposed between the backlight 230 and the guide member 300 . For example, the side part 430 may be disposed between the side surface of the backlight 230 and the side part 330 of the guide member 300 .

According to the embodiment of the present specification, the side part 430 may be connected to the backlight 230 via the fourth connecting member 430a. For example, the fourth connecting member 430a may be disposed between the side portion 430 and the side surface of the backlight 230 . For example, the side portion 430 may be connected to the guide member 300 via the fifth connecting member 430b. For example, the fifth connection member 430b may be disposed between the side part 430 of the first cover 400 and the side part 330 of the guide member 300 .

According to the embodiment of the present specification, the fourth connecting member 430a and the fifth connecting member 430b may include an acryl-based or urethane-based adhesive member, but is not limited thereto. For example, the fourth connecting member 430a and the fifth connecting member 430b have relatively excellent adhesion and high hardness so that vibrations of the guide member 300 can be transmitted to the display panel 210 well. It may include an acrylic-based adhesive member having a.

2 to 4 , the first cover 400 according to the embodiment of the present specification may further include a first hole 411 . For example, the first hole 411 may be disposed on the rear surface 410 of the first cover 400 .

The first hole 411 may be disposed in the first cover 400 overlapping the vibration device 500 , and the rear surface of the backlight 230 may be exposed through the first hole 411 . For example, the first hole 411 may secure a vibration space of the first cover 400 through which a sound generated according to the vibration of the vibration device 500 transmits in the front direction of the device. For example, the reflective sheet 235 of the backlight 230 may be exposed in the rear direction of the first cover 400 through the first hole 411 . For example, the first hole 411 may be disposed in each of the first area A1 and the second area A2 of the rear part 410 . For example, the first hole 411 includes a 1-1 hole 411-1 disposed in the first area A1 and a 1-2 hole 411-2 disposed in the second area A2. ) may be included. The 1-1 hole 411-1 and the 1-2 hole 411-2 of the embodiment of the present specification may be the first hole and the second hole, and these numbers do not limit the content of the present specification.

According to the embodiment of the present specification, the 1-1 hole 411-1 in the first cover 400 or passing through the first cover 400 is the first intermediate area MA1 or the first edge area EA1. ) or over the first middle area MA1 and the first edge area EA1 . For example, the first and second holes 411 - 2 in the first cover 400 or passing through the first cover 400 are disposed in the second intermediate area MA2 or the second edge area EA2 or , may be disposed over the second middle area MA2 and the second edge area EA2 .

The first hole 411 may provide a first gap space between the display member 200 and the vibration device 500 . For example, the first hole 411 may provide a first gap space between the backlight 230 of the display member 200 and the vibration device 500 . For example, the first hole 411 may provide a first gap space between the reflective sheet 235 of the backlight 230 and the vibration device 500 . For example, the first gap space may be a vibration space according to the driving of the vibration device 500 , a negative pressure space (or ringer) in which a sound pressure is generated according to vibration of the vibration device 500 , or vibration of the vibration device 500 . The sound wave generated according to the sound wave may be a sound wave propagation path (or an acoustic energy incident unit) that directly propagates to the display member 200 , but is not limited thereto.

The size (or width) of the first hole 411 according to the embodiment of the present specification may be smaller than the size (or width) of the vibration device 500 . When the total size (or total area) of the first hole 411 is larger than the total size (or total area) of the corresponding vibration device 500 , the vibration device 500 is inserted into the first hole 411 (or accommodating), the vibration device 500 cannot be disposed or located on the rear part 410 without using a separate mechanism. Therefore, when the overall size (or overall area) of the first hole 411 is smaller than the overall size (or overall area) of the corresponding vibration device 500, the vibration device 500 operates the first hole ( 411) and may be disposed or located on the rear portion 410 to overlap. For example, the first hole 411 according to the embodiment of the present specification may have the same shape as the vibration device 500 , or may have a square shape or a circular shape, but is not limited thereto.

3 and 4 , the first cover 400 according to the embodiment of the present specification may further include a reinforcing part 450 . The reinforcing part 450 may increase or reinforce the rigidity of the first cover 400 . For example, the reinforcing part 450 may increase or reinforce the rigidity of the first cover 400 by protruding from the rear part 410 toward the rear at a predetermined height. For example, the reinforcing part 450 may be a forming part of the first cover 400 .

According to the embodiment of the present specification, the reinforcing part 450 may be formed along the edge area EA of the rear part 410 . For example, the reinforcing part 450 may be formed in a region where the rear part 410 and the side part 430 are connected. For example, the reinforcing portion 450 protrudes from the rear surface of the rear portion 410 in the rear direction to have an inclined surface inclined from the end or one side of the rear portion 410 , and the side portion 430 is the end of the reinforcing portion 450 . Or it may be connected to one side.

According to the embodiment of the present specification, the reinforcing portion 450 may include a first reinforcing portion (or inclined surface) 451 and a second reinforcing portion (or a flat surface) 453 . For example, the first reinforcing part (or inclined surface) 451 may be disposed (or extended) to be inclined in the rear direction from the end or one side of the rear part 410 . For example, the second reinforcing portion (or flat surface) 453 may be horizontally disposed (or extended) in the first direction (X) from the end or one side of the first reinforcing portion 451 toward the side portion 430 . can For example, an end or one side of the second reinforcing portion 453 may be connected to the side portion 430 .

The vibrating device 500 may be disposed on the rear surface of the first cover 400 and vibrate the display member 200 . For example, the vibration device 500 may be supported by the first cover 400 . For example, the vibration device 500 may be disposed on the rear portion 410 to cover the first hole 411 disposed on the rear portion 410 of the first cover 400 .

The vibration device 500 according to the embodiment of the present specification may be a film-type vibration device. For example, the vibration device 500 may include a piezoelectric element, a flexible sound generator, a flexible actuator, a flexible speaker, a flexible piezoelectric speaker, a film actuator, a film-type piezoelectric composite actuator, a film speaker, a film-type piezoelectric speaker, or a film-type piezoelectric composite speaker and the like, but is not limited thereto.

According to the embodiment of the present specification, the vibrating device 500 vibrates according to a driving signal including an acoustic signal or a haptic feedback signal to vibrate the display member 200 to thereby generate a sound S according to the vibration of the display member 200 . may generate or generate a touch, for example, haptic feedback (or haptic vibration) in response to a touch by a user.

According to the embodiment of the present specification, the vibration device 500 vibrates the first portion P1 of the display member 200 to generate the first sound S1 of the first sound range according to the vibration of the first portion P1. generate or generate a first haptic feedback (or haptic vibration) responsive to the touch. For example, the vibrating device 500 vibrates the second part P2 of the display member 200 to generate the second sound S2 of the second sound range according to the vibration of the second part P2 or touch it. A second haptic feedback (or haptic vibration) may be generated in response to .

The vibration device 500 according to the embodiment of the present specification may include a plurality of vibration devices, for example, a first vibration device 510 and a second vibration device 530 , but is not limited thereto.

The first vibration device 510 may include at least one or more 1-1 vibration devices. For example, the first vibration device 510 may include one 1-1 vibration device 510-1. The 1-1 vibrating device 510-1 according to the embodiment of the present specification may be substantially the same as the first vibrating device 510 .

The second vibration device 530 may include at least one 2-1 vibration device. For example, the second vibration device 530 may include one 2-1 vibration device 530-1. The 2-1 th vibration device 530-1 according to the embodiment of the present specification may be substantially the same as the second vibration device 530 . The 1-1 vibration device 510-1, the 1-2 vibration device 510-2, the 2-1 vibration device 530-1, and the 2-2 vibration device 530 of the embodiment of the present specification Each of -2) may be a first vibration device, a third vibration device, a second vibration device, and a fourth vibration device, and these numbers do not limit the content of the present specification.

According to the embodiment of the present specification, each of the 1-1 vibration device 510-1 and the 2-1 vibration device 530-1 includes plates 511 and 531 and vibration generators 513 and 533. can The configuration of each of the 1-1 vibrating device 510-1 and the 2-1 vibrating device 530-1 is not limited thereto. In the plates 511 and 531 of the embodiment of the present specification, the plate 511 may be the first plate, and the plate 531 may be the second plate, and this number does not limit the content of the present specification.

The first vibration device 510 is disposed in the first area A1 of the first cover 400 (or the rear part 410 ), and the 1-1 hole 411-1 disposed in the first area A1 . ) can be covered.

The first vibration device 510 vibrates the first area A1 of the first cover 400 according to a first driving signal including an acoustic signal and/or a haptic feedback signal to vibrate the first portion of the display member 200 . By vibrating (P1), the first sound (S1) of the first sound range according to the vibration of the first portion (P1) of the display member 200 is generated or a touch, for example, a second response to a touch by a user 1 Can generate haptic feedback (or haptic vibration). For example, the first vibrating device 510 vibrates the first area A1 of the first cover 400 to directly vibrate the first portion P1 of the display member 200 to thereby directly vibrate the first region A1 of the first sound range. A first sound S1 may be generated or a first haptic feedback (or haptic vibration) may be generated in response to a touch, for example, a touch by a user.

The first vibrating device 510 according to the embodiment of the present specification vibrates the first area A1 of the first cover 400 in response to the first driving signal to form the inside of the 1-1 hole 411-1. By generating a sound pressure in (or in the first gap space), the first portion P1 of the display member 200 is vibrated to generate the first sound S1 in the first sound range or to generate a first haptic feedback. have.

According to the embodiment of the present specification, when the first vibrating device 510 vibrates by the first driving signal, the first area A1 of the first cover 400 by the vibration of the first vibrating device 510 is A negative pressure may be generated in the inside (or the first gap space) of the 1-1 hole 411-1 in the first cover 400 or passing through the first cover 400 according to the vibration. A sound pressure is generated in the sound transmission space STS according to the vibration of the backlight 230 according to the sound pressure, and the vibration of the first part P1 of the display panel 210 according to the sound pressure generated in the sound transmission space STS. Accordingly, the first sound S1 of the first sound range may be output to the front FD of the display panel 210 or a first haptic feedback may be generated. For example, the sound wave generated according to the vibration of the first vibration device 510 is transmitted (or propagated) to the display member 200 through the 1-1 hole 411-1, thereby generating the first sound S1. Sound pressure characteristics and/or sound quality may be improved. According to the embodiment of the present specification, the sound wave generated according to the vibration of the first vibrating device 510 is directly transmitted (or propagated) to the display member 200 through the 1-1 hole 411-1 to thereby 1 Sound pressure characteristics and/or sound quality of the sound S1 may be improved.

The second vibrating device 530 vibrates the second area A2 of the first cover 400 according to a second driving signal including an acoustic signal and/or a haptic feedback signal to vibrate the second portion of the display member 200 . By directly vibrating (P2), the second sound (S2) of the second sound range according to the vibration of the second part (P2) of the display member 200 is generated or a touch, for example, responds to a touch by a user to generate a second haptic feedback (or haptic vibration). For example, the second vibrating device 530 vibrates the second area A2 of the first cover 400 to directly vibrate the second portion P2 of the display member 200 to thereby vibrate the second sound range of the second sound range. A second sound S2 may be generated or a second haptic feedback (or haptic vibration) may be generated in response to a touch, for example, a touch by a user.

The second vibration device 530 according to the embodiment of the present specification vibrates the second area A2 of the first cover 400 in response to the second driving signal to be in the first cover 400 or the first cover ( The second part P2 of the display member 200 is vibrated by generating a negative pressure inside (or in the first gap space) of the first and second holes 411-2 passing through 400 , the second in the second sound range. A sound S2 may be generated or a second haptic feedback may be generated.

According to the embodiment of the present specification, when the second vibrating device 530 is vibrated by the second driving signal, the second area A2 of the first cover 400 by the vibration of the second vibrating device 530 is A negative pressure may be generated inside the 1-2-th hole 411-2 according to the vibration. A sound pressure is generated in the sound transmission space STS according to the vibration of the backlight 230 according to the sound pressure, and the vibration of the second part P2 of the display panel 210 according to the sound pressure generated in the sound transmission space STS. Accordingly, the second sound S2 of the second sound range may be output to the front FD of the display panel 210 or a second haptic feedback may be generated. For example, sound waves generated according to the vibration of the second vibration device 530 are transmitted (or propagated) to the display member 200 through the 1-2 holes 411 - 2 to generate the second sound S2 . Sound pressure characteristics and/or sound quality may be improved. According to the embodiment of the present specification, the sound wave generated according to the vibration of the second vibration device 530 is directly transmitted (or propagated) to the display member 200 through the 1-2 hole 411-2, thereby generating the second vibration device. 2 Sound pressure characteristics and/or sound quality of the sound S2 may be improved.

The plates 511 and 531 according to the embodiment of the present specification may be respectively disposed on the rear surface 410 of the first cover 400 via the sixth connecting members 515 and 535 . For example, the plates 511 and 531 may be on the rear surface 410 of the first cover 400 or cover the first holes 411-1 and 411-2 passing through the first cover 400 , respectively. . For example, each of the plates 511 and 531 may have a larger size (or width) than the first holes 411-1 and 411-2. In the sixth connecting members 515 and 535 of the embodiment of the present specification, the sixth connecting member 515 may be a sixth connecting member, and the sixth connecting member 535 may be a seventh connecting member, and this number is used herein does not limit the content of

According to the embodiment of the present specification, the plate (or first plate) 511 of the 1-1 vibrating device 510-1 may be disposed on the rear surface 410 of the first cover 400 . For example, the plate (or first plate) 511 of the 1-1 vibrating device 510-1 is the rear surface 410 of the first cover 400 via the 6-1 th connection member 515. can be placed in For example, the plate (or first plate) 511 of the 1-1 th vibration device 510-1 may cover the 1-1 hole 411-1 of the rear surface 410 . For example, the size of the plate (or first plate) 511 of the 1-1 vibration device 510-1 may be the same as or larger than the size of the vibration generator 513 .

According to the embodiment of the present specification, the plate (or second plate) 531 of the 2-1 th vibration device 530-1 may be disposed on the rear surface 410 of the first cover 400 . For example, the plate (or the second plate) 531 of the 2-1 vibrating device 530-1 is the rear part 410 of the first cover 400 via the 6-2 th connection member 535. can be placed in For example, the plate (or second plate) 531 of the 2-1 th vibration device 530-1 may cover the 1-2 th hole 411 - 2 of the rear part 410 . For example, the size of the plate (or second plate) 531 of the 2-1 th vibration device 530-1 may be the same as or larger than the size of the vibration generator 533 .

The plate (or first plate) 511 may be a diaphragm for generating a negative pressure in the 1-1 hole 411-1 of the rear portion 410 of the first cover 400 . The plate (or the second plate) 531 may be a diaphragm that generates a negative pressure in the first 1-2 holes 411 - 2 of the rear part 410 . Plates 511 and 531 according to the embodiment of the present specification are stainless steel, aluminum (Al), magnesium (Mg), magnesium (Mg) alloy, magnesium lithium (Li) alloy, and aluminum (Al) alloy. It may be made of any one or more metal materials, but is not limited thereto.

The 6-1 th connection member 515 is disposed between the rear part 410 and the plate 511 around the 1-1 hole 411-1 to connect (or fix) the vibration generator 513 to the rear part 410 . ) can be done. The 6-1 th connection member 515 may include a double-sided tape having an adhesive layer or a double-sided foam tape. The adhesive layer of the 6-1 th connection member 515 according to the embodiment of the present specification may include an acrylic-based or urethane-based adhesive material. For example, in order to minimize the transmission of the vibration of the vibration generator 513 to the rear part 410 of the adhesive layer of the 6-1 th connection member 515, rather than an acrylic adhesive material having a relatively high hardness. It may include a urethane-based adhesive material having relatively soft properties, but is not limited thereto.

The 6-2 th connection member 535 may be disposed between the rear surface 410 around the 1-2 th hole 411 - 2 and the plate 531 . Accordingly, the 6-2 th connection member 535 may connect the vibration generator 533 to the rear part 410 . The 6-second connection member 535 may include a double-sided tape having an adhesive layer or a double-sided foam tape. The adhesive layer of the 6-2th connection member 535 according to the embodiment of the present specification may include an acrylic-based or urethane-based adhesive material. For example, in order to minimize the transmission of the vibration of the vibration generator 533 to the rear part 410, the adhesive layer of the 6-2 connection member 535 is made of an acrylic adhesive material having a relatively high hardness rather than an acrylic adhesive material. It may include a urethane-based adhesive material having relatively soft properties, but is not limited thereto.

The vibration generators 513 and 533 may be disposed on the rear surfaces of the plates 511 and 531 . The vibration generators 513 and 533 may be disposed on the plates 511 and 531 to vibrate the plates 511 and 531 . The vibration generators 513 and 533 may overlap the first holes 411-1 and 411-2 of the rear part 410 . For example, the vibration generators 513 and 533 may be disposed on the rear surfaces of the plates 511 and 531 to overlap the first holes 411-1 and 411-2 of the rear surface portion 410 . For example, the vibration generators 513 and 533 may be disposed on the plates 511 and 531 via the seventh connecting members 517 and 537 . The seventh connecting member 517 of the embodiment of the present specification may be an eighth connecting member, and the seventh connecting member 537 may be a ninth connecting member, and this number does not limit the content of the present specification.

According to the embodiment of the present specification, the vibration generator (or the first vibration generator) 513 of the 1-1 vibration device 510-1 may be disposed on the rear surface of the first plate 511 . For example, the vibration generator (or the first vibration generator) 513 of the 1-1 vibration device 510-1 is disposed on the rear surface of the first plate 511 via the 7-1 connection member 517. can be placed. For example, the vibration generator (or the first vibration generator) 513 of the 1-1 vibration device 510-1 may have a 1-1 hole 411-1 of the rear portion 410 of the first cover 400 . ) can be nested. According to the embodiment of the present specification, the vibration generator (or the second vibration generator) 533 of the 2-1 th vibration device 530-1 may be disposed on the rear surface of the second plate 531 . For example, the vibration generator (or second vibration generator) 533 of the 2-1 th vibration device 530-1 is disposed on the rear surface of the second plate 531 via the 7-2 th connection member 537. can be placed. For example, the vibration generator (or the second vibration generator) 533 of the 2-1 th vibration device 530-1 may overlap the 1-2-th hole 411 - 2 of the rear part 410 .

According to the embodiment of the present specification, the second cover 700 may be disposed on the rear surface of the first cover 400 . The second cover 700 accommodates (or accommodates) the display member 200 on which one or more vibration devices 500 are disposed (or coupled), and the rear surface of the first cover 400 and the first cover 400 . may cover a side surface of the , and a side surface of the display member 200 . For example, the second cover 700 may be expressed as a set cover, a rear set cover, an outermost cover, an outermost set cover, a product cover, or an outermost product cover, but is not limited thereto.

The second cover 700 according to the embodiment of the present specification may include a rear structure 710 and a side structure 730 .

The rear structure 710 may be an outermost rear structure located on the rear surface of the device. For example, the rear structure 710 may support the display member 200 on which one or more vibration devices 500 are disposed and may cover the rear surface of the display member 200 .

The side structure 730 may be an outermost side structure located on the side of the device. For example, the side structure 730 is connected to the edge of the rear structure 710 to at least one or more of the rear surface of the first cover 400 , the side surface of the second cover 700 , and the side surface of the display member 200 . can cover

Referring to FIG. 2 , the second cover 700 according to the embodiment of the present specification may further include a cover box 750 . For example, the cover box 750 may receive (or accommodate) the vibration device 500 as a whole, and may be implemented in the rear structure 710 to cover the vibration device 500 as a whole.

For example, the cover box 750 may improve the characteristics of the sound generated by the vibration device 500 by providing an enclosed space between the rear part 410 and the rear structure 710 of the first cover 400 . . For example, the closed space provided by the cover box 750 may be used as a space for a resonance effect, and the sound pressure generated by the vibration device 500 is to be amplified by the resonance effect inside the cover box 750 . can For example, the cover box 750 may be expressed as an acoustic box, a sound box, or a resonance unit, but is not limited thereto.

According to an embodiment of the present specification, the device may include a first member 600 . For example, the first member 600 may be disposed on the rear surface of the first cover 400 . For example, the first member 600 may be disposed on the rear surface of the first cover 400 via the eighth connection member 650 . For example, the first member 600 may be disposed between the first cover 400 and the second cover 700 . For example, the first member 600 may be disposed to cover the entire vibration device 500 . For example, the first member 600 may cover the first hole 411 disposed in the first cover 400 . For example, the first member 600 may acoustically seal or separate the space in which the vibration device 500 is disposed. For example, the first member 600 may acoustically seal or separate a space in which the first vibration device 510 is disposed and a space in which the second vibration device 530 is disposed. The first member 600 prevents deterioration of acoustic properties by preventing or reducing interference between the sound generated in the space in which the first vibration device 510 is disposed and the sound generated in the space in which the second vibration device 530 is disposed. or can be reduced The first member 600 may be expressed as an enclosure, a rear enclosure, a vibration module box, a vibration module cover, a vibration box, or a sound box, but is not limited thereto. For example, the first member 600 may be a module frame member or a second member, and may be used in combination. It is not limited to this term.

According to the embodiment of the present specification, the eighth connection member 650 may include a double-sided tape or a double-sided foam tape having an adhesive layer. The adhesive layer of the eighth connection member 650 according to the embodiment of the present specification may include an acrylic-based or urethane-based adhesive material.

The first member 600 may include a 1-1 member 610 and a 1-2 member 630 . The 1-1 member 610 and the 1-2 member 630 may be disposed on the rear surface of the rear surface portion 410 of the first cover 400 . The 1-1 member 610 and the 1-2 member 630 of the embodiment of the present specification may be a first member (or a first enclosure member) and a second member (or a second enclosure member), and the number does not limit the content of this specification.

According to the embodiment of the present specification, the 1-1 member 610 may be disposed in the first area A1 of the rear portion 410 of the first cover 400 , for example, the 1-1 member. 610 may cover the first vibration device 510 . For example, the 1-1 member 610 may cover the 1-1 hole 411-1 disposed on the rear surface 410 of the first cover 400 .

The 1-1 member 610 according to the embodiment of the present specification may have a rectangular shape covering the first vibration device 510, but is not limited thereto. For example, the 1-1 member 610 may have the same or different shape as that of the first vibration device 510 . For example, when the first vibration device 510 has a square shape, the 1-1 member 610 has a square shape having a relatively larger size (or a larger area) than the first vibration device 510 . Or it may have a circular shape or an elliptical shape. This specification is not limited thereto.

The 1-1 member 610 may limit (or define) a vibration region (or vibration area) of the display member 200 by the first vibration device 510 . For example, in the first part P1 of the display member 200, as the size of the 1-1 member 610 increases, the vibration region of the first part P1 increases, so that the low-pitched sound of the left sound is improved. can be improved According to another exemplary embodiment of the present specification, in the first portion P1 of the display member 200, as the size of the 1-1 member 610 decreases, the vibration region of the first portion P1 decreases so that the left sound The high-pitched sound characteristics of can be improved. Accordingly, the size of the 1-1 member 610 may be set according to the characteristics of the sound range required according to the vibration of the display member 200 due to the vibration of the first vibration device 510 .

According to the embodiment of the present specification, the 1-2 members 630 may be disposed in the second area A2 of the rear surface 410 of the first cover 400 , for example, the 1-2 members. 630 may cover the second vibration device 530 . For example, the 1-2 members 630 may cover the 1-2 holes 411 - 2 disposed on the rear surface 410 of the first cover 400 .

The first and second members 630 according to the embodiment of the present specification may have a rectangular shape that covers the second vibrating device 530 , but is not limited thereto. For example, the first and second members 630 may have the same or different shape as that of the second vibration device 530 . For example, when the second vibration device 530 has a square shape, the first and second members 630 have a square shape having a relatively larger size (or a larger area) than the second vibration device 530 . Or it may have a circular shape or an elliptical shape. This specification is not limited thereto.

The 1-2-th member 630 according to the embodiment of the present specification has the same shape as the 1-1-th member 610 for symmetry between the left sound and the right sound, and has a first middle line of the display member 200 . It may have a symmetrical structure with the 1-1 member 610 with respect to (CL1).

The 1-2 members 630 may define (or define) a vibration region (or vibration area) of the display member 200 by the second vibration device 530 . For example, in the second portion P2 of the display member 200 , as the size of the first 1-2 members 630 increases, the vibration region of the second portion P2 increases, so that the low-pitched sound of the right sound is improved. can be improved According to another exemplary embodiment of the present specification, in the second portion P2 of the display member 200, as the size of the first 1-2 members 630 decreases, the vibration region of the second portion P2 decreases so that the right sound The high-pitched sound characteristics of can be improved. Accordingly, the size of the first and second members 630 may be set according to the characteristics of the sound range required according to the vibration of the display member 200 due to the vibration of the second vibration device 530 .

The 1-1 member 610 and the 1-2 member 630 limit the vibration region (or vibration area) of the first vibration device 510 and the second vibration device 530 of the display member 200 . It is possible to improve the left-right symmetry of the left and right sounds generated according to the vibration, and to optimize the sound pressure characteristics and/or the reproduction sound range of each of the left and right sounds.

According to the embodiment of the present specification, the plates 511 and 531, the vibration generators 513 and 533, and the first members 610 and 630 may constitute a vibration generating device. For example, the first plate 511 , the first vibration generator 513 , and the 1-1 member 610 may constitute a first vibration generator. For example, the second plate 531 , the second vibration generator 533 , and the 1-2 members 630 may constitute a second vibration generator.

According to the embodiment of the present specification, since the first member 600 is configured, the air impedance of the corresponding vibration device 500 can be controlled, and thus, a device capable of extending a sound range can be provided. And, since the device according to the embodiment of the present specification includes a film-type vibrating device, it is possible to provide a device with improved sound pressure characteristics and/or acoustic characteristics including a high-pitched sound range, and since the thickness of the device can be reduced, a slim structure It is possible to provide a device having

FIG. 5 is an enlarged view of part 'B' shown in FIG. 3 . FIG. 6 is an enlarged view of part 'C' shown in FIG. 3 .

5 and 6 , the plates 511 and 531 may have a second thickness T2 that is thinner than the first thickness T1 of the rear surface 410 of the first cover 400 . Accordingly, it is possible to improve the high-mid-range sound S having excellent sound pressure characteristics and/or sound quality of the vibrating devices 510 and 530 . When the second thickness T2 of the plates 511 and 531 is thicker than the first thickness T1 of the rear part 410, the vibration of the vibration generators 513 and 533 is generated by the first holes 411-1 and 411-2. ) cannot be sufficiently propagated into the interior of The plates 511 and 531 vibrate according to the vibrations of the vibration generators 513 and 533 to generate a sound (or sound pressure) of a high and medium-range range of 3 kHz or higher, and the first hole 411 of the rear part 410 of the first cover 400 . -1, 411-2) can be propagated inside.

According to the embodiment of the present specification, the 1-1 member 610 may independently cover the first vibration device 510 (the 1-1 vibration device 510-1 of FIG. 5), and the first cover The 1-1 hole 411-1 disposed on the rear surface 410 of the 400 may be covered. Accordingly, the first air gap AG1 may be provided in the first-first member 610 . For example, the interior of the 1-2 members 630 may include a single space, or may include a space divided into two or more. When the 1-2 member 630 includes two or more divided spaces, the internal space of the device may be utilized. When the 1-2 member 630 includes two or more divided spaces, the two or more spaces may be connected to each other through a conduit. For example, the first and second members 630 may have a closed structure or a structure having a ventilation hole (eg, a vent structure).

According to the embodiment of the present specification, the 1-1 member 610 may be disposed on the rear surface of the rear surface portion 410 of the first cover 400 . For example, the 1-1 member 610 may be disposed on the rear surface of the rear surface 410 of the first cover 400 via the 8-1 th connection member 651 .

The 1-1 member 610 according to the embodiment of the present specification may include a bottom portion 611 and a side portion 613 .

According to the embodiment of the present specification, the bottom portion 611 of the 1-1 member 610 is disposed on the rear surface of the first vibration device 510 (the 1-1 vibration device 510-1 of FIG. 5). and may cover the rear surface of the first vibrating device 510 . For example, the side portion 613 of the 1-1 member 610 may be disposed on a side surface of the first vibration device 510 and may cover the side surface of the first vibration device 510 . For example, the side part 613 may be connected to one side (or an end) of the bottom part 611 , and may be disposed along an edge of the bottom part 611 . For example, one side (or end) of the side portion 613 may be disposed on the rear surface of the rear surface portion 410 of the first cover 400 via the 8-1 th connection member 651 . For example, the bottom portion 611 of the 1-1 member 610 may be expressed as a first bottom frame or a first bottom member, and the term is not limited thereto. For example, the side portion 613 of the 1-1 member 610 may be expressed as a side wall portion, a first side frame, a first side wall frame, or a first side wall member, and the term is not limited thereto.

The 1-1 member 610 may limit (or define) a vibration region (or vibration area) of the display member 200 by the first vibration device 510 . For example, in the first part P1 of the display member 200, as the size of the 1-1 member 610 increases, the vibration region of the first part P1 increases, so that the low-pitched sound of the left sound is improved. can be improved According to another exemplary embodiment of the present specification, in the first portion P1 of the display member 200, as the size of the 1-1 member 610 decreases, the vibration region of the first portion P1 decreases so that the left sound The high-pitched sound characteristics of can be improved. For example, the size of the 1-1 member 610 may be set according to characteristics of a sound range required according to the vibration of the display member 200 due to the vibration of the first vibration device 510 .

According to the embodiment of the present specification, the 1-2 member 630 may independently cover the second vibration device 530 (the 2-1 vibration device 530-1 in FIG. 6), and the first cover The first and second holes 411-2 disposed on the rear surface 410 of the 400 may be covered. Accordingly, the second air gap AG2 may be provided in the first 1-2 member 630 . For example, the interior of the 1-2 members 630 may include a single space, or may include a space divided into two or more. When the 1-2 member 630 includes two or more divided spaces, the internal space of the device may be utilized. When the 1-2 member 630 includes two or more divided spaces, the two or more spaces may be connected to each other through a conduit. For example, the first and second members 630 may have a closed structure or a structure having a ventilation hole (eg, a vent structure).

According to the embodiment of the present specification, the 1-2 members 630 may be disposed on the rear surface of the rear surface portion 410 of the first cover 400 . For example, the 1-2-th member 630 may be disposed on the rear surface of the rear surface portion 410 of the first cover 400 via the 8-2th connection member 653 . The 8-1 th connection member 651 of the embodiment of the present specification may be a 10 th connection member, and the 8-2 th connection member 653 may be an eleventh connection member, and this number limits the content of this specification. not.

The 1-2-th member 630 according to the embodiment of the present specification has the same shape as the 1-1-th member 610 for symmetry between the left sound and the right sound, and has a first middle line of the display member 200 . It may have a symmetrical structure with the 1-1 member 610 with respect to (CL1).

The first and second members 630 according to the embodiment of the present specification may include a bottom portion 631 and a side portion 633 .

According to the embodiment of the present specification, the bottom portion 631 of the 1-2 member 630 is disposed on the rear surface of the second vibration device 530 (the 2-1 vibration device 530-1 in FIG. 6). and may cover the rear surface of the second vibration device 530 . For example, the side portion 633 of the second and second members 630 may be disposed on a side surface of the second vibration device 530 and cover the rear surface of the second vibration device 530 . For example, the side part 633 may be connected to one side (or an end) of the bottom part 631 , and may be disposed along an edge of the bottom part 631 . For example, one side (or end) of the side portion 633 may be disposed on the rear surface of the rear surface portion 410 of the first cover 400 via the 8-2 th connection member 653 . For example, the bottom portion 631 of the first and second members 630 may be expressed as a second bottom frame or a second bottom member, and the term is not limited thereto. For example, the side portion 633 of the first and second members 630 may be expressed as a side wall portion, a second side frame, a second side wall frame, or a second side wall member, and the term is not limited thereto.

The 1-2 member 630 defines a vibration region (or vibration area) of the display member 200 by the second vibration device 530 (the 2-1 vibration device 530-1 in FIG. 6 ). or define). For example, in the second portion P2 of the display member 200 , as the size of the first 1-2 members 630 increases, the vibration region of the second portion P2 increases, so that the low-pitched sound of the right sound is improved. can be improved According to another exemplary embodiment of the present specification, in the second portion P2 of the display member 200, as the size of the first 1-2 members 630 decreases, the vibration region of the second portion P2 decreases so that the right sound The high-pitched sound characteristics of can be improved. For example, the size of the first and second members 630 may be set according to characteristics of a sound range required according to the vibration of the display member 200 due to the vibration of the second vibration device 530 .

The 1-1 member 610 and the 1-2 member 630 limit the vibration region (or vibration area) of the first vibration device 510 and the second vibration device 530 of the display member 200 . It is possible to improve the left-right symmetry of the left and right sounds generated by vibration, and to optimize the sound pressure characteristics and reproduction range of the left and right sounds.

According to the embodiment of the present specification, the plates 511 and 531, the vibration generators 513 and 533, and the first members 610 and 630 may constitute a vibration generating device. For example, the first plate 511 , the first vibration generator 513 , and the 1-1 member 610 may constitute a first vibration generator. For example, the second plate 531 , the second vibration generator 533 , and the 1-2 members 630 may constitute a second vibration generator.

7 is a view showing a vibration generator according to an embodiment of the present specification. FIG. 8 is a cross-sectional view taken along line II-II' shown in FIG. 7 .

7 and 8, the vibration generators 513 and 533 according to the embodiment of the present specification may vibrate by alternately repeating contraction and expansion by a piezoelectric effect (or piezoelectric characteristic). have. For example, the vibration generators 513 and 533 may vibrate the display member 200 by vibrating in the thickness direction Z by alternately repeating contraction and expansion due to the reverse piezoelectric effect. For example, the vibration generators 513 and 533 may have a square shape or a square shape, but is not limited thereto.

Each of the vibration generators 513 and 533 according to the exemplary embodiment of the present specification may include a vibration unit (or vibration layer) PCL, a first electrode layer E1 , and a second electrode layer E2 . For example, a structure including the vibrating unit PCL, the first electrode layer E1 , and the second electrode layer E2 may be referred to as a vibrating element PCM.

The vibrating unit PCL may include a piezoelectric material having a piezoelectric effect, a composite piezoelectric material, or an electroactive material. The vibrating part (PCL) 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 part, an electroactive part, a piezoelectric structure, a piezoelectric composite, or a piezoelectric ceramic composite. , but is not limited to the term.

The vibrating unit PCL 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 PCL may have a 1-3 composite structure or a 2-2 composite structure. For example, the piezoelectric strain coefficient d ₃₃ of the vibrating part PCL along 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 a first surface (or an upper surface or a front surface) of the vibrating unit PCL, and may be electrically connected to the first surface of the vibrating unit PCL. For example, the first electrode layer E1 may have a tubular electrode shape (or a single electrode or a common electrode) disposed on the entire first surface of the vibrating unit PCL. The first electrode layer E1 according to the embodiment of the present specification may be made 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 or lower surface) opposite to the first surface of the vibrating unit PCL 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 (or a single electrode or a common electrode) disposed on the entire second surface of the vibrating unit PCL. The second electrode layer E2 according to the exemplary 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. According to another embodiment of the present specification, the second electrode layer E2 may be formed of a material different from that of the first electrode layer E1 .

The vibrating unit PCL may be polarized (or poled) 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 that changes from high temperature to room temperature, limited thereto. it is not going to be

The vibration generators 513 and 533 according to the embodiment of the present specification may further include a first protection member 501 and a second protection member 502 .

The first protection member 501 may be disposed on the first surface of the vibration element PCM. For example, the first protective member 501 may cover the first electrode layer E1 disposed on the first surface of the vibration element PCM. Accordingly, the first protection member 501 may support the first surface of the vibration element PCM and may protect the first surface or the first electrode layer E1 of the vibration element PCM.

The first protective member 501 according to the embodiment of the present specification may be disposed on the first surface of the vibration element PCM via the first adhesive layer 503 . For example, the first protective member 501 may be connected to or attached to the first surface of the vibration element PCM by a film laminating process using the first adhesive layer 503 as a medium.

The second protection member 502 may be disposed on the second surface of the vibration element PCM. For example, the second protection member 502 may cover the second electrode layer E2 disposed on the second surface of the vibration element PCM. Accordingly, the second protection member 502 may support the second surface of the vibration element PCM and protect the second surface or the second electrode layer E2 of the vibration element PCM.

The second protective member 502 according to the embodiment of the present specification may be disposed on the second surface of the vibration element PCM via the second adhesive layer 504 . For example, the second protective member 502 may be connected to or attached to the second surface of the vibration element PCM by a film laminating process via the second adhesive layer 504 .

Each of the first protective member 501 and the second protective member 502 according to the embodiment of the present specification may include a plastic film. For example, each of the first protective member 501 and the second protective member 502 may be a polyimide film, a polyethylene terephthalate film, or a polyethylene naphthalate film, The present invention is not limited thereto.

The first adhesive layer 503 may be disposed on the first surface of the vibration element PCM. For example, the first adhesive layer 503 is formed on the rear surface (or inner surface) of the first protection member 501 facing the first surface of the vibration element PCM, and is formed on the first surface of the vibration element PCM. can be placed.

The second adhesive layer 504 may be disposed on the second surface of the vibration element PCM. For example, the second adhesive layer 504 is formed on the front surface (or inner surface) of the second protection member 502 facing the first surface of the vibration element PCM, and is formed on the second surface of the vibration element PCM. can be placed.

The vibration element PCM may be surrounded by the first adhesive layer 503 and the second adhesive layer 504 . For example, the first adhesive layer 503 and the second adhesive layer 504 may completely surround the vibration element PCM. For example, the first adhesive layer 503 and the second adhesive layer 504 may be represented by a cover member or the like, but is not limited thereto. When the first adhesive layer 503 and the second adhesive layer 504 are constituted of the cover member, the first protective member 501 is disposed on the first surface of the cover member, and the second protective member 502 is the cover member. It may be disposed on the second side. For example, the first adhesive layer 503 and the second adhesive layer 504 are illustrated as the first adhesive layer 503 and the second adhesive layer 504 for convenience of description, and may be disposed as one adhesive layer.

Each of the first adhesive layer 503 and the second adhesive layer 504 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 503 and the second adhesive layer 504 may include an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin. It is not limited.

The vibration generators 513 and 533 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 part 505 .

The first power supply line PL1 may be disposed on the first protection member 501 . For example, it may be disposed on the rear surface of the first protection member 501 facing the first surface of the vibration element PCM. The first power supply line PL1 may be electrically connected to the first electrode layer E1 of the vibration element PCM. For example, the first power supply line PL1 may be directly electrically connected to the first electrode layer E1 of the vibration element PCM. For example, the first power supply line PL1 may be electrically connected to the first electrode layer E1 of the vibration element PCM via an anisotropic conductive film. As another embodiment of the present specification, the first power supply line PL1 may be electrically connected to the first electrode layer E1 of the vibration element PCM through the conductive material (or particles) contained in the first adhesive layer 503 . can

The second power supply line PL2 may be disposed on the second protection member 502 . For example, the second power supply line PL2 may be disposed on the front surface of the second protection member 502 facing the second surface of the vibration element PCM. The second power supply line PL2 may be electrically connected to the second electrode layer E2 of the vibration element PCM. For example, the second power supply line PL2 may be directly electrically connected to the second electrode layer E2 of the vibration element PCM. For example, the second power supply line PL2 may be electrically connected to the second electrode layer E2 of the vibration element PCM via an anisotropic conductive film. As another embodiment of the present specification, the second power supply line PL2 may be electrically connected to the second electrode layer E2 of the vibration element PCM through the conductive material (or particles) contained in the second adhesive layer 504 . can

The pad part 505 may be electrically connected to the first power supply line PL1 and the second power supply line PL2 . For example, the pad part 505 may be disposed on the vibration generators 513 and 533 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 . have. The pad part 505 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 .

Vibration generators 513 and 533 according to an embodiment of the present specification may further include a flexible cable 506 .

The flexible cable 506 may be electrically connected to the pad part 505 disposed on the vibration generators 513 and 533 , and may supply a driving signal provided from the sound processing circuit to the vibration element PCM. The flexible cable 506 according to the embodiment of the present specification may include a first terminal and a second terminal. The first terminal may be electrically connected to the first pad electrode of the pad part 505 . The second terminal may be electrically connected to the second pad electrode of the pad part 505 . For example, the flexible cable 506 may be a flexible printed circuit cable or a flexible flat cable, but is not limited thereto.

For example, the sound processing circuit (or vibration driving circuit) may generate an AC-type driving signal including a driving signal of a first polarity and a driving signal of a second polarity based on the sound source. The driving signal of the first polarity is any one of a positive (+) driving signal and a negative (-) driving signal, and the driving signal of the second polarity is a positive (+) driving signal and a negative (-) driving signal. may be any one of the driving signals of For example, the driving signal of the first polarity is transmitted to the vibration generators 513 and 533 through the first terminal of the flexible cable 506 and the first pad electrode of the pad part 505 and the first power supply line PL1. It may be supplied to the first electrode layer E1. The driving signal of the second polarity is transmitted to the second electrode layer of the vibration generators 513 and 533 through the second terminal of the flexible cable 506, the second pad electrode of the pad part 505, and the second power supply line PL2. E2) can be supplied.

9A to 9F are views illustrating a vibrating unit of a vibration generator according to an embodiment of the present specification.

The vibrating unit PCL according to the exemplary embodiment of the present specification may include a plurality of first portions PCLa and a plurality of second portions PCLb between the plurality of first portions PCLa. The first portion PCLa may include an inorganic material, and the second portion PCLb may include an organic material. Since the first part PCLa and the second part PCL are connected to each other on a plane, the first vibration device 510 and the second vibration device 530 may be implemented as a single film. In this configuration, compared to a structure in which several piezoelectric bodies are stacked, it can be implemented as a single film, and thus can be implemented as the vibrating devices 510 and 530 having a thin thickness. Accordingly, an increase in the thickness of the device due to the arrangement of the vibrating devices 510 and 530 may be reduced.

Each of the plurality of first portions PCLa according to an embodiment of the present specification may include an inorganic material or a piezoelectric material that vibrates due to a piezoelectric effect (or piezoelectric characteristic) of an electric field. For example, each of the plurality of first parts PCLa may be expressed as an electroactive part, an inorganic material part, a piezoelectric material part, or a vibrating part, but is not limited thereto.

According to the embodiment of the present specification, each of the plurality of first portions PCLa may be made of a ceramic-based material capable of implementing a relatively high vibration or a piezoelectric ceramic having a perovskite-based crystal structure. can The perovskite crystal structure may have a piezoelectric and reverse piezoelectric effect, and may have an orientation. The perovskite crystal structure is represented by the chemical formula of ABO ₃ , A may be formed of a divalent metal element, and B may be formed of a tetravalent metal element. As an example, in the formula of ABO ₃ , A and B may be cations, and O may be anions. For example, the chemical formula of ABO ₃ may include at least one of PbTiO ₃ , PbZrO ₃ , BaTi _O3 , 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 configured in each of the plurality of first portions (PCLa) is lead (Pb), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), niobium ( Nb), magnesium (Mg), manganese (Mn), and may include at least one of indium (In), but is not limited thereto. For another example, the inorganic material configured in each of the plurality of first portions (PCLa) 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), zirconium (Zr), nickel (Ni), and niobium (Nb). According to another embodiment of the present specification, it may include a lead magnesium niobate (PMN)-based material, a lead nikel niobate (PNN)-based material, a lead zirconate niobate (PZN)-based material, or a lead indium niobate (PIN)-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 . The PIN-based material may include lead (Pb), indium (In), and niobium (Nb), for example, Pb(In, Nb)O ₃ . According to another embodiment of the present specification, the inorganic material may include at least one of CaTiO ₃ , BaTiO ₃ , and SrTiO ₃ that does not contain lead (Pb), but is not limited thereto.

Each of the plurality of second parts PCLb according to the embodiment of the present specification has a lower modulus (or Young's modulus) and viscoelasticity compared to the first part PCLa. It is possible to improve the reliability of the 1 part (PCLa). In order for the first vibration device 510 and the second vibration device 530 to have impact resistance and high rigidity, each of the plurality of second parts PCLb has a relatively high damping factor (tan δ) and a relatively high damping factor (tan δ). It may be composed of a material having a high stiffness (stiffness) characteristic. For example, each of the plurality of second portions PCLb may be formed of a material having a damping vector tan δ of 0.1 to 1 gigapascals (GPa) and a stiffness characteristic of 0 to 10 gigapascals (GPa). In addition, the damping vector tan δ and the stiffness characteristic can also be described as a correlation between the loss coefficient and the modulus. In this case, each of the plurality of second portions PCLb has a loss coefficient of 0.01 to 1 and a loss coefficient of 0.1 to 10 GPa. It can be composed of a material with a modulus of (gigapascals).

The organic material included in each of the plurality of second portions PCLb may be formed of an organic material or an organic polymer having a flexible characteristic compared to the inorganic material of the first portion PCLa. For example, each of the plurality of second portions PCLb may include an organic material, an organic polymer, an organic piezoelectric material, or an organic non-piezoelectric material. For example, each of the plurality of second parts PCLb may be expressed as an adhesive part having flexibility, a stretchable part, a bending part, a damping part, or a flexible part, but is not limited thereto.

The organic material according to the embodiment of the present specification may include at least one of an organic piezoelectric material and an organic non-piezoelectric material.

The organic material including the organic piezoelectric material may improve the overall durability of the first vibration device 510 and the second vibration device 530 by absorbing the impact applied to the inorganic material (or the first portion PCLa), , it is possible to provide a certain level of piezoelectric properties. The organic piezoelectric material according to the embodiment of the present specification may be an organic material having an electroactive property. The organic material including the organic non-piezoelectric material is composed of a curable resin composition and an adhesive containing the same to absorb an impact applied to the inorganic material (or the first portion (PCLa)), thereby forming the first vibration device 510 and the second vibration device. The overall durability of the gye 530 may be improved. The organic non-piezoelectric material according to the embodiment of the present specification may include at least one of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but is not limited thereto.

According to the embodiment of the present specification, an organic material including an organic non-piezoelectric material is attached to an epoxy resin and an inorganic material for high rigidity properties required for the first vibration device 510 and the second vibration device 530 . For sex, adhesion promoters may be included. For example, the adhesion promoter may be a phosphate based agent or the like. The organic material may be cured by a curing method of at least one of thermal curing and photo curing. In order to prevent the thickness uniformity of the first vibrating device 510 and the second vibrating device 530 from being reduced due to the shrinkage of the organic material due to the volatilization of the solvent when the organic material is cured, a solvent-free type Epoxy resins may be used.

In addition, the organic material including the organic non-piezoelectric material may further include a reinforcing agent for damping characteristics in addition to the high rigidity of the first and second vibration devices 510 and 530 . For example, the reinforcing agent may be MBS (Methylmethacrylate-Butadiene-styrene) of a core shell type, and the content of the reinforcing agent may be 5 to 40 wt%. For example, the reinforcing agent is a core-shell type elastic body, and the shell part has high bonding strength with an epoxy resin such as an acrylic polymer, thereby improving the impact resistance or damping properties of the first vibration device 510 and the second vibration device 530 . can be improved

The plurality of first portions PCLa and the plurality of second portions PCLb of the vibrating unit PCL according to the exemplary embodiment of the present specification are alternately arranged along the first direction X (or the second direction Y). can be repeatedly arranged. For example, the first direction X may be a horizontal direction of the vibrating unit PCL, and the second direction Y may be a vertical direction of the vibrating unit PCL crossing the first direction X. , but is not limited thereto. For example, the first direction X may be a vertical direction of the vibrating unit PCL, and the second direction Y may be a horizontal direction of the vibrating unit PCL.

9A and 9B , each of the plurality of first portions PCLa may be disposed between the plurality of second portions PCLb. For example, each of the plurality of first portions PCLa may have a first width parallel to the first direction X and a length parallel to the second direction Y. Each of the plurality of second portions PCLb may have a second width parallel to the first direction X and a length parallel to the second direction. For example, the first width may be greater than the second width. For example, the plurality of first portions PCLa and the plurality of second portions PCLb may have the same or different sizes (or widths), in the first direction X (or the second direction Y). ) may be alternately and repeatedly disposed along the line, and may include a line shape or a stripe shape. Accordingly, the vibrating unit PCL shown in FIGS. 9A and 9B may have a resonant frequency of 20 kHz or less by having a 2-2 complex structure. The present invention is not limited thereto, and the resonant frequency of the vibrating unit PCL may be changed according to at least one or more of the shape, length, and thickness of the vibrating unit.

According to the exemplary embodiment of the present specification, the plurality of first portions PCLa are disposed to be spaced apart from each other in the first direction X and the second direction Y, and each of the plurality of second portions PCLb is adjacent to a plurality of pieces. It may be disposed to fill a gap between the first portions PCLa or to surround each of the plurality of first portions PCLa (eg, FIGS. 9C , 9D, 9E, and 9F ). For example, the plurality of first portions PCLa may have the same size and may be arranged in a grid shape ( FIG. 9C ). For example, the plurality of first portions PCLa may have a circular planar structure ( FIG. 9D ). For example, the plurality of first portions PCLa may have a circular shape, but is not limited thereto. For example, the plurality of first portions PCLa may have a planar structure such as an elliptical shape, a polygonal shape, or a donut shape. For example, the plurality of first portions PCLa may have a triangular planar structure ( FIGS. 9E and 9F ).

The vibrator PCL according to various embodiments of the present specification may have a single thin film shape by disposing (or connecting) the plurality of first portions PCLa and second portions PCLb on the same plane. For example, the vibrating part PCL may vibrate in the vertical direction by the first part PCLa having vibration characteristics, and may be bent into a curved shape by the second part PCLb having flexibility or ductility. have. And, in the vibrating part PCL according to various embodiments of the present specification, the size of the first part PCLa and the size of the second part PCLb are set according to the piezoelectric characteristics and flexibility required for the vibrating part PCL. can be For example, in the case of the vibrating part PCL requiring piezoelectric characteristics rather than flexibility, the size of the first part PCLa may be larger than the size of the second part PCLb. According to another embodiment of the present specification, in the case of the vibrating unit PCL requiring flexibility rather than piezoelectric properties, the size of the second part PCLb may be larger than the size of the first part PCLa. Therefore, since the size of the vibrating unit PCL can be adjusted according to the required piezoelectric characteristics and flexibility, there is an advantage in that the design of the vibrating unit PCL is easy.

10 and 11 are other enlarged views of part 'B' shown in FIG. 3 .

10 and 11 show a change of the first plate 511 of the first vibration device 510 in FIG. 3 . In the following description, redundant descriptions of the same components except for the changed configuration and related configurations will be briefly described or omitted. The description of the first plate 511 with reference to FIGS. 10 and 11 may be equally applied to the second plate 531 of the second vibration device 530 .

10 and 11 , the first plate 511 according to another embodiment of the present specification may have a convexly or concavely curved shape. The bending direction of the first plate 511 may be at least one of a major axis, a minor axis, and a diagonal direction. For example, a portion of the first plate 511 corresponding to (or overlapping with) the 1-1 hole 411-1 may have a convex shape or a concave shape. For example, as shown in FIG. 10 , a portion corresponding to (or overlapping with) the 1-1 hole 411-1 of the first plate 511 faces the 1-1 hole 411-1. can be bent For example, as shown in FIG. 11 , a portion corresponding to (or overlapping with) the 1-1 hole 411-1 of the first plate 511 is opposite to the 1-1 hole 411-1. It may be bent toward the direction or may be bent apart from the opposite direction of the 1-1 hole 411-1.

The second plate 531 according to another embodiment of the present specification may have the same shape as the first plate 511 . For example, the second plate 531 may have a convexly or concavely curved shape. For example, the bending direction of the second plate 531 may be one or more of a major axis, a minor axis, and a diagonal direction. For example, a portion of the second plate 531 corresponding to (or overlapping with) the 1-2 holes 411 - 2 may have a convex shape or a concave shape. For example, a portion corresponding to (or overlapping with) the 1-2 holes 411 - 2 of the second plate 531 may be bent toward the 1-2 holes 411 - 2 . For another example, the portion corresponding to (or overlapping with) the 1-2 holes 411-2 of the second plate 531 is bent in the opposite direction of the 1-2 holes 411-2 or the first -1 It can be bent apart from the opposite direction of the hole 411-1.

12 is another enlarged view of part 'B' shown in FIG. 3 . FIG. 13 is another enlarged view of part 'C' shown in FIG. 3 . FIG. 12 shows a change in the first plate 511 of the first vibration device 510 in FIG. 3 , and FIG. 13 shows a change in the second plate 531 of the second vibration device 530 in FIG. 3 . In the following description, duplicate descriptions of the same configuration except for the changed configuration and related configurations will be briefly described or omitted.

12 and 13 , the first plate 511 and the second plate 531 according to another embodiment of the present specification may include second holes 511a and 531a. For example, the second hole 511a of the first plate 511 shown in FIG. 12 may be applied to the first plate 511 of FIG. 10 , and the second hole 511a of the first plate 531 shown in FIG. 13 . The second hole 531a may also be applied to the second plate 531 illustrated in FIG. 11 .

According to the embodiment of the present specification, the second holes 511a and 531a may be disposed in portions of the plates 511 and 531 corresponding to (or overlapping with) the first holes 411-1 and 411-2. For example, the second holes 511a and 531a may increase the amount of displacement of the vibration devices 510 and 530 . For example, the second holes 511a and 531a may be disposed according to acoustic characteristics required for the first vibration device 510 and the second vibration device 530 . For example, the number, shape, length, and width of the second holes 511a and 531a may be changed according to acoustic characteristics required for the first vibration device 510 and the second vibration device 530 . The second hole 511a and the second hole 531a of the embodiment of the present specification may be the third hole and the fourth hole, and these numbers do not limit the content of the present specification.

According to the embodiment of the present specification, the total area of the second hole (or the 2-1 hole) 511a disposed on the first plate 511 of the first vibration device 510 is the second vibration device 530 . It may be the same as or different from the total area of the second hole (or 2-2 hole) 531a disposed in the second plate 531 of the .

According to the embodiment of the present specification, the number, shape, length, and width of the 2-1 holes 511a disposed in the first plate 511 are the 2-2 holes ( 531a) in number, shape, length, and width. For example, at least one of the number, shape, length, and width of the 2-1 holes 511a may be different from the number, shape, length, and width of the 2-2 th holes 531a.

The second holes 511a and 531a may adjust the amount of displacement of the plates 511 and 531 . Accordingly, since the second holes 511a and 531a are disposed in the plates 511 and 531 according to the acoustic properties required for the first vibration device 510 and the second vibration device 530, the device can achieve the required acoustic properties. sound can be generated.

According to the embodiment of the present specification, the seventh connecting members 517 and 537 may or may not overlap the second holes 511a and 531a.

14 is an exploded view of an apparatus according to another embodiment of the present specification. Fig. 15 is another cross-sectional view taken along line II' shown in Fig. 1 of the connection structure of the device shown in Fig. 14; FIG. 16 is an enlarged view of part 'D' shown in FIG. 15 .

The device according to another embodiment of the present specification shown in FIGS. 14 to 16 is a change of the first cover, the vibrating device, and the member from the device according to the embodiment of the present specification described with reference to FIGS. 1 to 13 . . In the following description, redundant descriptions of the same components except for the changed configuration and related configurations will be briefly described or omitted.

14 to 16 , the first cover 400 according to another exemplary embodiment of the present specification may include a third hole 413 disposed on the rear surface 410 . For example, the third hole 413 may increase the amount of sound generated according to the vibration of the vibrating devices 510 and 530 transmitted to the front of the device. For example, the third hole 413 is disposed in the first cover 400 overlapping the vibrating device 500 , and the rear surface of the backlight 230 is vibrating through the third hole 413 . ) may be exposed. For example, the rear surface of the backlight 230 may be exposed to the vibrating devices 510 and 530 through the third hole 413 . For example, the reflective sheet 235 of the backlight 230 may be exposed in the rear direction of the first cover 400 through the third hole 413 . For example, the reflective sheet 235 of the backlight 230 may be exposed to the vibrating devices 510 and 530 through the third hole 413 . For example, the third hole 413 may be disposed in the first area A1 and the second area A2 of the rear portion 410 of the first cover 400 , respectively.

According to the embodiment of the present specification, the third hole 413 may include a 3-1 hole 413 - 1 and a 3 - 2 hole 413 - 2 . For example, the 3 - 1 hole 413 - 1 may be disposed in the first area A1 . For example, the 3-2nd hole 413 - 2 may be disposed in the second area A2 . For example, the 3-1 th hole 413 - 1 may be disposed in the first intermediate area MA1 or the first edge area EA1 or may be disposed over the first intermediate area MA1 and the first edge area. can For example, the 3-2 th hole 413 - 2 is disposed in the second intermediate area MA2 or the second edge area EA2 , or in the second intermediate area MA2 and the second edge area EA2 . can be placed across. The 3-1 hole 413-1 and the 3-2 hole 413-2 of the embodiment of the present specification may be the first hole and the second hole, and these numbers do not limit the content of the present specification.

The third hole 413 may provide a second gap space between the display member 200 and the vibration device 500 . For example, the third hole 413 may provide a second gap space between the backlight 230 of the display member 200 and the vibration device 500 . For example, the second gap space may be a vibration space according to the driving of the vibration device 500 , a negative pressure space (or resonator) in which a sound pressure is generated according to the vibration of the vibration device 500 , or vibration of the vibration device 500 . A sound wave generated according to the sound wave may be expressed as a sound wave propagation path (or an acoustic energy incident unit) that directly propagates to the display member 200 , but is not limited thereto.

The vibration device 500 of the device according to another embodiment of the present specification includes a first vibration device 510 (including the 1-1 vibration device 510-1 in the first area A1), and a second vibration device and a device 530 (including a 2-1 th vibration device 530-1 in the second area A2), but is not limited thereto.

The first vibration device 510 according to the embodiment of the present specification may be disposed on the rear surface of the rear surface portion 410 of the first cover 400 . For example, the first vibration device 510 is disposed in the first area A1 of the first cover 400 , and moves the first area A1 of the first cover 400 in response to the first driving signal. By vibrating the first portion P1 of the display member 200 by vibrating, the first sound S1 of the first sound range according to the vibration of the first portion P1 of the display member 200 is generated or touched, yes For example, a first haptic feedback (or a first haptic vibration) may be generated in response to a touch by the user.

The first vibration device 510 may include a 1-1 vibration device 510-1, a 1-2 vibration device 510-2, and a second member 510-3, which are limited thereto. it is not For example, the 1-1 vibration device 510-1 and the 1-2 vibration device 510-2 may be disposed adjacent to each other. For example, the second member 510 - 3 may be a first support member, a first guide member, or a first member, and may be used in combination. It is not limited to this term. According to another embodiment of the present specification, the 1-1 vibration device 510-1 and the 1-2 vibration device 510-2 may be applied interchangeably. For example, the 1-2 vibrating device 510 - 2 may be disposed on the rear surface of the first cover 400 .

The 1-1 vibrator 510-1 may be disposed on the rear surface of the first cover 400 . For example, the 1-1 vibration device 510-1 may be disposed in the first area A1 of the rear surface 410 of the first cover 400 . For example, the 1-1 vibrating device 510-1 vibrates the first area A1 of the first cover 400 according to a 1-1 driving signal including an acoustic signal and/or a haptic feedback signal. to vibrate the first part P1 of the display member 200 to generate the first sound S1 of the first sound range according to the vibration of the first part P1 of the display member 200 or touch, for example For example, a first haptic feedback (or a first haptic vibration) may be generated in response to a touch by the user. For example, the 1-1 vibration device 510-1 vibrates the first area A1 of the first cover 400 to directly vibrate the first portion P1 of the display member 200 to display the display. The first sound S1 of the first sound range according to the vibration of the first portion P1 of the member 200 may be generated or a first haptic feedback (or first haptic vibration) may be generated in response to a touch.

According to the embodiment of the present specification, the 1-1 vibration device 510-1 may be a film-type vibration device. For example, the 1-1 vibration device 510-1 is a flexible sound generator, a flexible actuator, a flexible speaker, a flexible piezoelectric speaker, a film actuator, a film type piezoelectric composite actuator, a film speaker, a film type piezoelectric speaker, or a film type It may be expressed as a piezoelectric composite speaker, and the like, but is not limited thereto.

The 1-1 vibrating device 511-1 of the first vibrating device 510 according to the embodiment of the present specification is disposed in the rear part 410 of the first cover 400, the 1-1 hole 411-1 ) compared to that configured to cover, the 1-1 vibration device 510-1 of the first vibration device 510 according to another embodiment of the present specification is the rear surface portion 410 of the first cover 400. Since it has the same configuration as the 1-1 vibrating device 510-1 of the first vibrating device 510 according to the embodiment of the present specification, except that it is disposed on the rear side, a redundant description thereof will be omitted or simplified. Explain.

According to the embodiment of the present specification, the 1-1 vibration device 510-1 of the first cover 400 via the 6-1 th connection member 515 as shown in FIGS. 15 and 16 . A first plate 511 disposed on the rear surface of the rear portion 410, and a first vibration generator 513 disposed on the rear surface of the first plate 511 via the 7-1 connection member 517. can For example, the positions of the first plate 511 and the first vibration generator 513 may be changed. For example, the 1-1 vibration device 510-1 is a first vibration generator 513 disposed on the rear surface of the rear surface part 410 of the first cover 400 via the 6-1th connection member 515. ), and a first plate 511 disposed on the rear surface of the first vibration generator 513 via the 7-1st connection member 517 .

The 1-2 vibrating device 510 - 2 may be disposed on the rear surface 410 of the first cover 400 . For example, the 1-2 vibrating device 510 - 2 covers the rear surface of the rear surface 410 of the first cover 400 so as to cover the 3 - 1 hole (or the 1-1 hole) 413 - 1 . can be placed in For example, when the second member 510-3 according to the embodiment of the present specification is configured, the 1-2 vibrating device 510-2 may be disposed on the rear surface of the second member 510-3. have. For example, the 1-2 oscillation device 510 - 2 may be disposed on the rear surface of the second member 510 - 3 via the 9-1 th connection member 510 - 3c. For example, the 1-2 vibration device 510 - 2 may be a coil-type vibration device (or vibration generator), and may be a vibration device (or vibration generator) including a magnet, a bobbin, and a coil wound around the bobbin. can For example, the 9-1 th connection member 510 - 3c may be disposed between the rear surface of the second member 510 - 3 and the bobbin of the 1-2 th vibration device 510 - 2 .

According to an embodiment of the present specification, the coil-type vibration device may further include a frame (or plate), a center pole, and a damper. A magnet (or permanent magnet) may be disposed on the frame to be received in a hollow portion of the bobbin. The coil may be wound around the outer peripheral surface of the bobbin. For example, the coil may receive an external sound signal (or voice signal). The coil may be raised and lowered together with the bobbin. When an acoustic signal is applied to the coil, the bobbin may vibrate, eg, reciprocate up and down, according to Fleming's left hand rule based on an applied electric field formed around the coil and an external magnetic field formed around the magnet. The center pole is disposed on the magnet, and can guide the vibration of the bobbin. For example, the center pole may be surrounded by the bobbin by being inserted (or received) into the hollow portion of the bobbin. For example, the center pole may be disposed on the magnet to be received in the hollow portion of the bobbin. For example, a damper may be disposed between the frame and the bobbin. The damper may be contracted or relaxed according to the vibration of the bobbin by having a corrugated structure between one side and the other side. For example, the damper may limit a vibration distance (eg, a vertical movement distance) of the bobbin through a restoring force. For example, when the bobbin vibrates more than a certain distance or vibrates less than a certain distance, the bobbin may return to its original position by the restoring force of the damper. The configuration of the coil-type vibration device is not limited thereto.

According to the embodiment of the present specification, in the third hole 413 , since the displacement amount of the first and second vibration devices 510-2 increases in the low-pitched range, the vibration between the vibration device 510 and the optical sheet unit 237 is formed. space can be obtained. For example, in order to reduce the height of the device by the 1-2 vibrating device 510-2, the first members 610 and 630 are configured such that the bobbin of the 1-2 vibrating device 510-2 is the third It may be configured or implemented to be exposed to the hole 413 or inserted (or received) into the third hole 413 .

According to the embodiment of the present specification, the first and second vibration device 510 - 2 is configured to operate in the first area A1 of the first cover 400 according to the first and second driving signal including an acoustic signal or a haptic feedback signal. can vibrate. Accordingly, the 1-2 vibrating device 510 - 2 vibrates the first part P1 of the display member 200 , thereby generating a first sound range according to the vibration of the first part P1 of the display member 200 . The first sound S1 may be generated or a first haptic feedback (or first haptic vibration) may be generated in response to a touch, for example, a user's touch.

The 1-2 vibrating device 510-2 according to the embodiment of the present specification vibrates the first area A1 of the first cover 400 in response to the 1-2 driving signal to form a 3-1 hole ( 413-1) may generate a negative pressure inside (or in the second gap space). Accordingly, the first sound S1 of the first sound range may be generated by vibrating the first portion P1 of the display member 200 .

According to the embodiment of the present specification, when the 1-2 vibrating device 510-2 is vibrated by the 1-2 driving signal, the first cover ( A negative pressure may be generated in the 3-1 th hole 413 - 1 according to the vibration of the first area A1 of 400 . A sound pressure is generated in the sound transmission space STS according to the vibration of the backlight 230 according to the sound pressure, and the vibration of the first part P1 of the display panel 210 according to the sound pressure generated in the sound transmission space STS. The first sound S1 of the first sound range generated according to the sound may be output to the front FD of the display panel 210 . Accordingly, the sound wave generated according to the vibration of the 1-2 vibrating device 510 - 2 is directly transmitted (or propagated) to the display member 200 through the 3-1 th hole 413 - 1 to thereby transmit the first sound. The sound pressure characteristics and/or sound quality of (S1) may be improved.

The second member 510 - 3 may be disposed between the rear surface 410 of the first cover 400 and the first vibration device 510 . For example, the second member 510 - 3 may support the 1-2 vibrating device 510 - 2 . For example, the second member 510 - 3 may be disposed on the rear surface of the rear surface 410 of the first cover 400 via the 10 - 1 th connection member 510 - 3d.

The second member 510-3 according to the embodiment of the present specification may include a 4-1 th hole 510-3a and a 4-2 th hole 510-3b. The 4-1 hole 510-3a and the 4-2 hole 510-3b of the embodiment of the present specification may be the 5th hole and the 6th hole, and these numbers do not limit the content of the present specification.

The 4-1 th hole 510 - 3a according to the embodiment of the present specification may correspond to (or overlap with) the 1-1 th vibration device 510 - 1 . For example, the 4-1 th hole 510 - 3a may have the same shape as the 1-1 th vibration device 510-1, but is not limited thereto. For example, the size (or width) of the 4-1th hole 510-3a is the same as the size of the 1-1 vibration device 510-1 or the size of the 1-1 vibration device 510-1. can be larger For example, the 4-1 th hole 510 - 3a may provide a displacement space of the 1-1 th vibration device 510-1, whereby the displacement amount of the 1-1 th vibration device 510-1 can increase For example, the 4-1 th hole 510 - 3a may be covered by the first plate 511 of the 1-1 th vibration device 510 - 1 . For example, the vibration generator 513 of the 1-1 vibration device 510-1 may be disposed on the first plate 511 . For example, the vibration generator 513 of the 1-1 vibration device 510-1 may be disposed on the rear surface of the first plate 511 .

The 4-2 th hole 510 - 3b according to the embodiment of the present specification may correspond to (or overlap with) the 3-1 th hole 413 - 1 of the first cover 400 . For example, the 4-2 th hole 510 - 3b may correspond to (or overlap with) the 1-2 th vibration device 510 - 2 . For example, the 4-2 th hole 510 - 3b may have the same or similar shape as the 3-1 th hole 413 - 1 of the first cover 400 , but is not limited thereto. For example, the size (or width) of the 4-2 th hole 510 - 3b may be the same as or different from the size of the 3-1 th hole 413 - 1 of the first cover 400 . For example, the size of the 4-2th hole 510-3b may be smaller or larger than the size of the 3-1th hole 413-1.

According to the embodiment of the present specification, the 4-2 th hole 510 - 3b may be covered by the 1-2 th vibration device 510 - 2 . For example, the 1-2 th vibration device 510 - 2 may be disposed on the rear surface of the second member 510 - 3 and cover the 4-2 th hole 510 - 3b. For example, the 1-2 oscillation device 510 - 2 may output the second sound pressure through the 4-2 th hole 510 - 3b. For example, the 1-2 vibrating device 510 - 2 may output a low-pitched sound through the 4-2 th hole 510 - 3b, but is not limited thereto.

According to the embodiment of the present specification, the second member 510-3 is accommodated (or accommodated) in the 1-1 member 610, the 1-1 vibrating device 510-1 and the 1-2-th member At least one of the vibrating devices 510 - 2 may be supported. For example, the second member 510 - 3 may be connected to or coupled to at least a portion of the 1-1 member 610 . For example, the second member 510 - 3 may be expressed as a first support member, a first support frame, a first support panel, a first guide panel, a first guider, etc., limited to this term not.

According to the embodiment of the present specification, the portion of the second member 510-3 disposed between the 4-1 th hole 510-3a and the 4-2 th hole 510-3b is the 1-1 th vibration device. A space in which the 510 - 1 is disposed and a space in which the first and second vibration devices 510 - 2 are disposed may be acoustically separated. Accordingly, the first sound pressure (or sound wave) generated by the vibration of the 1-1 vibrating device 510-1 is different from the first sound pressure generated by the vibration of the 1-2 vibrating device 510-2 By preventing or reducing the interference of the second sound pressure (or sound wave), it is possible to prevent or reduce the deterioration of the acoustic characteristics.

The second vibration device 530 according to the embodiment of the present specification may be disposed on the rear surface of the rear surface portion 410 of the first cover 400 . For example, the second vibration device 530 is disposed in the second area A2 of the first cover 400 , and moves the second area A2 of the first cover 400 in response to the second driving signal. By vibrating the second part P2 of the display member 200 by vibrating, the second sound S2 of the second sound range according to the vibration of the second part P2 of the display member 200 is generated or touched, yes For example, a second haptic feedback (or second haptic vibration) may be generated in response to a touch by the user.

The second vibration device 530 may include a 2-1 vibration device 530-1, a 2-2 vibration device 530-2, and a third member 530-3, limited thereto. it is not The 2-1 th vibration device 530-1 and the 2-2 th vibration device 530-2 may be disposed adjacent to each other. For example, the third member 530 - 3 may be a second support member, a second guide member, or a first member, and may be used in combination. It is not limited to this term.

The 2-1 th vibration device 530-1 may be disposed on the rear surface of the first cover 400 . For example, the 2-1 th vibration device 530-1 may be disposed in the second area A2 of the rear surface 410 of the first cover 400 . For example, the 2-1 th vibration device 530-1 vibrates the second area A2 of the first cover 400 according to the 2-1 th drive signal including an acoustic signal or a haptic feedback signal and displays it. By vibrating the second part P2 of the member 200, the second sound S2 of the second sound range according to the vibration of the second part P2 of the display member 200 is generated or touched, for example, A second haptic feedback (or second haptic vibration) may be generated in response to a touch by the user. For example, the 2-1 vibration device 530-1 vibrates the second area A2 of the first cover 400 to directly vibrate the second portion P2 of the display member 200 to display the display. The second sound S2 of the second sound range according to the vibration of the second part P2 of the member 200 may be generated, or a second haptic feedback (or second haptic vibration) may be generated in response to a touch.

The 2-1 th vibration device 530-1 may be configured substantially the same as the 1-1 th vibration device 510-1.

According to the embodiment of the present specification, the 2-1 vibration device 530-1 of the first cover 400 via the 6-2 connection member 535 as shown in FIGS. 15 and 16 . A second plate 531 disposed on the rear surface of the rear surface portion 410, and a second vibration generator 533 disposed on the rear surface of the second plate 531 via the 7-2 connection member 537. can For example, the positions of the second plate 531 and the second vibration generator 533 may be changed. For example, the 2-1 th vibration device 530-1 is a second vibration generator 533 disposed on the rear surface of the rear surface part 410 of the first cover 400 via the 6-2 th connection member 535. ), and a second plate 531 disposed on the rear surface of the second vibration generator 533 via the 7-second connection member 537 .

The 2-2 vibration device 530 - 2 may be disposed on the rear surface 410 of the first cover 400 . For example, the 2-2 oscillation device 530 - 2 is the rear surface of the rear surface 410 of the first cover 400 to cover the 3 - 2 hole (or the 1-2 hole) 413 - 2 . can be placed in For example, when the third member 530-3 according to the embodiment of the present specification is configured, the 2-2 second vibration device 530-2 may be disposed on the rear surface of the third member 530-3. have. For example, the 2-2nd vibration device 530-2 may be disposed on the rear surface of the third member 530-3 via the 9-2th connection member 530-3c. For example, the second-second vibration device 530-2 may be a coil-type vibration device (or vibration generator), and may be a vibration device (or vibration generator) including a magnet, a bobbin, and a coil wound around the bobbin. can For example, the ninth-second connecting member 530-3c may be disposed between the rear surface of the third member 530-3 and the bobbin of the second-second vibrating device 530-2. The 9-1 th connection member 510-3c of the embodiment of the present specification may be a twelfth connection member, and the 9-2 th connection member 530-3c may be a thirteenth connection member, and this number is the content of this specification is not limited to

According to the embodiment of the present specification, the 2-2 vibration device 530 - 2 is configured to operate in the second area A2 of the first cover 400 according to the 2-2 driving signal including an acoustic signal or a haptic feedback signal. can vibrate. Accordingly, the 2-2 vibrating device 530 - 2 vibrates the second portion P2 of the display member 200 , thereby generating a second sound range according to the vibration of the second portion P2 of the display member 200 . A second sound S2 may be generated or a second haptic feedback (or haptic vibration) may be generated in response to a touch, for example, a touch by a user. For example, the 2-2 vibrating device 530 - 2 directly vibrates the second part P2 of the display member 200 according to the vibration of the second part P2 of the display member 200 . A second sound S2 of the second sound range may be generated or a second haptic feedback (or haptic vibration) in response to a touch may be generated.

The 2-2 vibration device 530-2 according to the embodiment of the present specification vibrates the second area A2 of the first cover 400 in response to the 2-2 driving signal to form the 3-2 hole ( 413-2) may generate a negative pressure inside (or in the second gap space). Accordingly, the second sound S2 of the second sound range may be generated by vibrating the second portion P2 of the display member 200 .

According to the embodiment of the present specification, when the 2-2 vibrating device 530-2 is vibrated by the 2-2 driving signal, the first cover ( A negative pressure may be generated in the 3-2 th hole 413 - 2 according to the vibration of the second area A2 of 400 . A sound pressure is generated in the sound transmission space STS according to the vibration of the backlight 230 according to the sound pressure, and the vibration of the second part P2 of the display panel 210 according to the sound pressure generated in the sound transmission space STS. The second sound S2 of the second sound range generated according to the sound may be output to the front FD of the display panel 210 . Accordingly, the sound wave generated according to the vibration of the 2-2 th vibration device 530 - 2 is directly transmitted (or propagated) to the display member 200 through the 3-2 th hole 413 - 2 and thus the second sound The sound pressure characteristics and sound quality of (S2) may be improved.

The third member 530 - 3 may be disposed between the rear surface 410 of the first cover 400 and the second vibration device 530 . For example, the third member 530 - 3 may support the 2 - 2 vibration device 530 - 2 . For example, the third member 530 - 3 may be disposed on the rear surface of the rear surface 410 of the first cover 400 via the 10 - 2 th connection member 530 - 3d. The 10-1th connection member 510-3d of the embodiment of the present specification may be a 14th connection member, and the 10-2th connection member 530-3d may be a 15th connection member, and this number is the content of the present specification is not limited to

The third member 530-3 according to the embodiment of the present specification may include a 5-1 th hole 530-3a and a 5-2 th hole 530-3b. The 5-1 hole (530-3a) of the embodiment of the present specification may be the 7th hole, and the 5-2th hole (530-3b) may be the 8th hole, and this number does not limit the content of the present specification .

The 5-1 th hole 530 - 3a according to the embodiment of the present specification may correspond to (or overlap with) the 2-1 th vibration device 530-1. For example, the 5-1 th hole 530 - 3a may have the same or similar shape as the 2-1 th vibration device 530-1, but is not limited thereto. For example, the size of the 5-1 th hole 530 - 3a may be the same as the size of the 2-1 th vibration device 530-1 or larger than the size of the 2-1 th vibration device 530-1. . For example, the 5-1 th hole 530 - 3a may provide a displacement space of the 2-1 th vibration device 530-1, whereby the displacement amount of the 2-1 th vibration device 530-1 . can increase For example, the 5-1 th hole 530 - 3a may be covered by the second plate 531 of the 2-1 th vibration device 530-1. For example, the vibration generator 533 of the 2-1 th vibration device 530-1 may be disposed on the second plate 531 . For example, the vibration generator 533 of the 2-1 th vibration device 530-1 may be disposed on the rear surface of the second plate 531 .

The 5-2 th hole 530 - 3b according to the embodiment of the present specification may correspond to (or overlap with) the 3-2 th hole 413 - 2 of the first cover 400 . For example, the 5-2 th hole 530 - 3b may correspond to (or overlap with) the 2-2 th vibration device 530 - 2 . For example, the 5-2 th hole 530 - 3b may have the same shape as the 3-2 th hole 413 - 2 of the first cover 400 , but is not limited thereto. For example, the size of the 5-2th hole 530-3b may be the same as or different from the size of the 3-2th hole 413-2 of the first cover 400 . For example, the size of the 5-2th hole 530-3b may be smaller or larger than the size of the 3-2th hole 413-2.

According to the embodiment of the present specification, the 5-2 th hole 530 - 3b may be covered by the 2-2 th vibration device 530 - 2 . For example, the 2-2 th vibration device 530 - 2 may be disposed on the rear surface of the third member 530 - 3 and cover the 5 - 2 th hole 530 - 3b. For example, the 2-2 th vibration device 530 - 2 may output the second sound pressure through the 5-2 th hole 530 - 3b. For example, the 2-2 th vibration device 530 - 2 may output a sound of a low frequency range through the 5-2 th hole 530 - 3b, but is not limited thereto.

According to the embodiment of the present specification, the third member 530-3 is accommodated (or accommodated) in the first 1-2 member 630, the 2-1 th vibration device 530-1 and the 2-2 th At least one of the vibrating devices 530 - 2 may be supported. For example, the third member 530 - 3 may be connected to or coupled to at least a portion of the first 1-2 member 630 . For example, the third member 530-3 may be expressed as a second support member, a second support frame, a second support panel, a second guide panel, or a second guider. not.

According to the embodiment of the present specification, the portion 530-3e of the third member 530-3 disposed between the 5-1th hole 530-3a and the 5-2th hole 530-3b is the A space in which the 2-1 vibration device 530-1 is disposed and a space in which the 2-2 vibration device 530-2 is disposed may be acoustically separated. Thereby, interference between the sound pressure (or sound wave) generated by the vibration of the 2-1 th vibration device 530-1 and the sound pressure (or sound wave) generated by the vibration of the 2-2 th vibration device 530-2 It is possible to prevent or reduce deterioration of acoustic characteristics or sound quality by preventing or reducing

The first member 600 according to another embodiment of the present specification is a change of the first member 600 according to the embodiment of the present specification, except that it includes a through hole 670 in the embodiment of the present specification Since it is the same as the first member 600 according to , the overlapping description will be omitted or briefly described.

The first member 600 according to another embodiment of the present specification may be disposed on the rear surface of the first cover 400 . For example, the first member 600 may overlap the 4-1th hole 510-3a and the 4-2th hole 510-3b, respectively, and may overlap the 5-1th hole 530-3a and the 5-1th hole 530-3a. Each of the 5-2 th holes 530 - 3b may overlap. The first member 600 according to another embodiment of the present specification may include a 1-1 member 610 and a 1-2 member 630 .

The 1-1 member 610 may cover the entire first vibration device 510 . For example, the 1-1 member 610 may cover the 1-1 vibration device 510-1 and the 1-2 vibration device 510-2 together. For example, the 1-1 member 610 may be disposed in the first area A1 of the rear portion 410 of the first cover 400 via the 8-1 th connection member 651 . For example, the 1-1 member 610 may cover the 3-1 th hole 413 - 1 disposed on the rear surface 410 of the first cover 400 .

The 1-1 member 610 according to another embodiment of the present specification may include a bottom portion 611 , a side portion 613 , and a first through hole (or first hole) 671 .

According to the embodiment of the present specification, the bottom part 611 may be disposed on the rear surface of the first vibration device 510 . For example, the bottom part 611 may overlap each of the 4-1 th hole 510 - 3a and the 4-2 th hole 510 - 3b. For example, the bottom part 611 may cover the rear surface of the first vibration device 510 . For example, the bottom part 611 may be disposed on the rear surface of the 1-1 vibration device 510-1 and the rear surface of the 1-2 vibration device 510-2. For example, the bottom part 611 may cover the rear surface of the 1-1 vibration device 510-1 and the rear surface of the 1-2 vibration device 510-2.

According to the embodiment of the present specification, the side portion 613 may be disposed on the side surface of the first vibration device 510 and may cover the side surface of the first vibration device 510 . For example, the side portion 613 may be connected to one side (or an end) of the bottom portion 611 . For example, the side portion 613 may be disposed along an edge of the bottom portion 611 . For example, one side (or end) of the side portion 613 may be disposed on the rear surface of the rear surface portion 410 of the first cover 400 via the 8-1 th connection member 651 .

According to another embodiment of the present specification, the first through hole 671 may be disposed in the bottom portion 611 . For example, the first through hole 671 may correspond to (or overlap with) the 1-2 vibrating device 510 - 2 . For example, the first through hole 671 may provide a displacement space for the 1-2 vibration device 510 - 2 , thereby increasing the displacement amount of the 1-2 vibration device 510 - 2 . can The first passage hole 671 may be a path through which a portion of the 1-2 vibration device 510 - 2 passes. For example, the central portion of the 1-2 vibrating device 510 - 2 may be exposed or protruded to the outside of the 1-1 member 610 through the first through hole 671 . According to another embodiment of the present specification, the first through hole 671 may correspond to (or overlap with) the 1-1 vibration device 510-1. For example, the first passage hole 671 may be a path through which a part of the 1-1 vibration device 510-1 passes. For example, a portion of the 1-1 th vibration device 510-1 may be exposed or protrude to the outside of the 1-1 th member 610 through the first through hole 671 .

The 1-2 members 630 may cover the entire second vibration device 530 . For example, the 1-2-th member 630 may cover the 2-1 th vibration device 530-1 and the 2-2 th vibration device 530-2 together. For example, the 1-2-th member 630 may be disposed in the second area A2 of the rear portion 410 of the first cover 400 via the 8-2th connection member 653 . For example, the 1-2 member 630 may cover the 3-2 hole 413 - 2 disposed on the rear surface 410 of the first cover 400 .

The first and second members 630 according to another embodiment of the present specification may include a bottom portion 631 , a side portion 633 , and a second through hole (or second hole) 673 .

According to the embodiment of the present specification, the bottom part 631 may be disposed on the rear surface of the second vibration device 530 . For example, the bottom portion 631 may overlap each of the 5-1 th hole 530 - 3a and the 5 - 2 th hole 530 - 3b . For example, the bottom part 631 may cover the rear surface of the second vibration device 530 . For example, the bottom part 611 may be disposed on the rear surface of the 2-1 th vibration device 530-1 and the rear surface of the 2-2 th vibration device 530-2. For example, the bottom part 611 may cover the rear surface of the 2-1 th vibration device 530-1 and the rear surface of the 2-2 th vibration device 530-2.

According to the embodiment of the present specification, the side portion 613 may be disposed on a side surface of the second vibration device 530 and may cover the side surface of the second vibration device 530 . For example, the side portion 613 may be connected to one side (or an end) of the bottom portion 611 . For example, the side portion 613 may be disposed along an edge of the bottom portion 611 . For example, one side (or end) of the side portion 613 may be disposed on the rear surface of the rear surface portion 410 of the first cover 400 via the 8-2 th connection member 653 .

According to the embodiment of the present specification, the second through hole 673 may be disposed in the bottom portion 611 . For example, the second through hole 673 may correspond to (or overlap with) the 2-2 vibration device 530 - 2 . For example, the second through hole 673 may provide a displacement space for the 1-2 vibration device 510 - 2 , thereby increasing the displacement amount of the 1-2 vibration device 510 - 2 . can For example, the second passage hole 673 may be a path through which a portion of the 2-2 second vibration device 530 - 2 passes. For example, a central portion of the 2-2 second vibration device 530 - 2 may be exposed or protruded to the outside of the 1-2 member 630 through the second through hole 673 . According to another embodiment of the present specification, the second through hole 673 may correspond to (or overlap with) the 2-1 th vibration device 530-1. For example, the second passage hole 673 may be a path through which a portion of the 2-1 th vibration device 530-1 passes. For example, a portion of the 2-1 th vibration device 530-1 may be exposed or protrude to the outside of the 1-2 th member 630 through the second through hole 673 .

According to the embodiment of the present specification shown in FIGS. 14 to 16 , the 1-1 vibrating device 510-1, the 1-2 vibrating device 510-2, the second member 510-3, and The 1-1 member 610 may constitute a first vibration generating device. The 2-1 vibration device 530-1, the 2-2 vibration device 530-2, the third member 530-3, and the 1-2 member 630 constitute the second vibration generating device. can do. The 3-1 th hole 413 - 1 may be the 1-1 th hole, and the 3 - 2 th hole 413 - 2 may be the 1-2 th hole.

According to the embodiment of the present specification, the first vibration generating device and/or the second vibration generating device and the corresponding vibration generating device are connected to the vibrating object (or vibrating member) to vibrate the vibrating object (or vibrating member) to generate sound. can be printed out. For example, the vibrating object includes a vibrating plate, wherein the vibrating plate includes a metal material, or at least one of a single non-metallic or a composite non-metallic material of any one or more of wood, plastic, glass, cloth, fiber, paper, rubber, and leather. It may include sheets or layers. For example, the vibrating object may include a display panel having a plurality of pixels displaying an image, or a non-display panel of any one of a light emitting diode lighting panel, an organic light emitting lighting panel, and an inorganic light emitting lighting panel. For example, the vibrating object may include one or more of a vehicle interior material, a vehicle glass window, a ceiling of a building, a glass window of a building, an interior material of a building, an interior material of an aircraft, and a glass window of an aircraft.

According to the embodiment of the present specification, since the first member 600 is configured, the air impedance of the vibrating device 500 can be controlled, so that a device capable of extending a sound range can be provided. And, since the device according to the embodiment of the present specification includes a film-type vibrating device, it is possible to provide a device with improved sound pressure characteristics and/or acoustic characteristics including a high-pitched sound range, and since the thickness of the device can be reduced, a slim structure It is possible to provide a device having

FIG. 17 is a view showing the vibration generator shown in FIG. 14 .

Referring to FIG. 17 , the first vibration generator 513 of the device according to another embodiment of the present specification includes a vibration unit (or vibration layer) PE, a first electrode layer E1 , and a second electrode layer E2 . can do. For example, the vibrator PE may be a piezo-electric element.

For example, the first vibration generator 513 may be disposed on the plate 511 . In another embodiment of the present specification, the first vibration generator 513 may be attached to the plate 511 made of a metal material.

The vibrator PE may include a piezoelectric material having 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 PE may be expressed in other terms such as a vibrating layer, a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric vibrating unit, a piezoelectric material unit, an electroactive unit, a piezoelectric structure, an inorganic material layer, or an inorganic material unit, etc. , but is not limited thereto.

The vibrating part PE may be made of a transparent, translucent, or opaque piezoelectric material (or electroactive material), and may be transparent, translucent, or opaque. The vibrating unit PE may be made of a ceramic-based material capable of realizing relatively high vibration or a piezoelectric ceramic having a perovskite-based crystal structure. 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.

The vibration unit PE according to the embodiment of the present specification is lead (Pb), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), niobium (Nb), magnesium (Mg), manganese ( Mn), and indium (In). The vibrating part PE according to another embodiment of the present specification is a lead zirconate titanate (PZT)-based material including lead (Pb), zirconium (Zr), and titanium (Ti), or lead (Pb), zirconium (Zr) ), nickel (Ni), and PZNN (lead zirconate nickel niobate)-based material including niobium (Nb), but is not limited thereto. According to another embodiment of the present specification, it may include a lead magnesium niobate (PMN)-based material, a lead nikel niobate (PNN)-based material, a lead zirconate niobate (PZN)-based material, or a lead indium niobate (PIN)-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 . The PIN-based material may include lead (Pb), indium (In), and niobium (Nb), for example, Pb(In, Nb)O ₃ . According to another embodiment of the present specification, the vibrating unit PCL may include at least one of CaTiO ₃ , BaTiO ₃ , and SrTiO ₃ that does not contain lead (Pb), but is not limited thereto.

The vibrating unit PE according to the embodiment of the present specification is not limited to the rectangular shape shown in FIG. 17 , and may be configured in a circular shape, an elliptical shape, a triangular or more polygonal shape, or various shapes.

The first electrode layer E1 may be disposed on the first surface (or upper surface) of the vibrating unit PE and may be electrically connected to the first surface of the vibrating unit PE. For example, the first electrode layer E1 may have a tubular electrode shape disposed on the entire first surface of the vibrating unit PE. For example, the first electrode layer E1 may have the same shape as the vibrating unit PE, but is not limited thereto. The first electrode layer E1 according to the embodiment of the present specification may be made 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 PE and may be electrically connected to the second surface of the vibrating unit PE. For example, the second electrode layer E2 may have a tubular electrode shape disposed on the entire second surface of the vibrating unit PE. For example, the second electrode layer E2 may have a larger size than that of the vibrating unit PE and may have the same shape as the vibrating unit PE, but is not limited thereto. The second electrode layer E2 according to the exemplary 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 made of a material different from that of the first electrode layer E1 .

The vibrating unit PE may be polarized (or poled) 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 that changes from high temperature to room temperature, limited thereto it is not going to be For example, the vibrating unit PE may vibrate as it alternately contracts and expands by a reverse piezoelectric effect according to a driving signal applied to the first electrode layer E1 and the second electrode layer E2 from the outside. have.

Fig. 18 is another cross-sectional view taken along line II' shown in Fig. 1 of the connection structure of the device shown in Fig. 14; 19 is an enlarged view of part 'E' shown in FIG. 18 .

The device according to another embodiment of the present specification shown in FIGS. 18 and 19 is a device in which a connecting member is added to the device according to the embodiment of the present specification described with reference to FIGS. 14 to 16 . In the following description, redundant descriptions of the same components except for the changed configuration and related configurations will be briefly described or omitted.

18 and 19 , a 1-1 vibration device 510-1 according to another embodiment of the present specification may include a first plate 511 and a vibration generator 513 . For example, the vibration generator (or the first vibration generator) 513 of the 1-1 vibration device 510-1 is disposed on the rear surface of the first plate 511 via the 7-1 connection member 517. can be placed. The 2-1 th vibration device 530-1 according to another embodiment of the present specification may include a second plate 531 and a vibration generator 533 . The vibration generator (or second vibration generator) 533 of the 2-1 th vibration device 530-1 may be disposed on the rear surface of the second plate 531 via the 7-2 th connection member 537 . .

The device according to another embodiment of the present specification may further include eleventh connecting members 519 and 539 . For example, an apparatus according to another embodiment of the present specification may include an 11-1 th connection member 519 and an 11-2 th connection member 539 . The 11-1 connection member 519 of the embodiment of the present specification may be the 16th connection member, and the 11-2 connection member 539 may be the 17th connection member. not.

The 11-1 th connection member 519 may be disposed between the second member 510 - 3 and the first plate 511 . Accordingly, the first plate 511 may be disposed on the second member 510 - 3 via the 11-1 th connection member 519 . For example, the 11-1 th connection member 519 may be disposed on one side (or edge) of the second member 510 - 3 . For example, the 11-1 th connection member 519 may overlap one side (or edge) of the second member 510 - 3 . For example, the 11-1 th connection member 519 may be disposed on one side (or edge) of the first plate 511 . For example, the 11-1 th connection member 519 may overlap one side (or edge) of the first plate 511 . For example, the 11-1 th connection member 519 may be disposed between one side (or edge) of the second member 510 - 3 and one side (or edge) of the first plate 511 . For example, the 11-1 th connection member 519 may overlap the first member 600 . For example, the 11-1 th connection member 519 may overlap the 1-1-1 member 610 . For example, the 11-1 th connection member 519 may overlap the bottom portion 611 of the 1-1 th member 610 . For example, the 11-1 th connection member 519 may overlap the 4-1 th hole 510-3a, but is not limited thereto, and may not overlap the 4-1 th hole 510-3a. have.

The 11-2 th connection member 539 may be disposed between the third member 530 - 3 and the second plate 531 . Accordingly, the second plate 531 may be disposed on the third member 530 - 3 via the 11 - 2 th connection member 539 . For example, the 11-2 th connection member 539 may be disposed on one side (or edge) of the third member 530 - 3 . For example, the 11-2 th connection member 539 may overlap one side (or edge) of the third member 530 - 3 . For example, the 11-2 th connection member 539 may be disposed on one side (or edge) of the second plate 531 . For example, the 11-2 th connection member 539 may overlap one side (or edge) of the second plate 531 . For example, the 11-2 th connection member 539 may be disposed between one side (or edge) of the third member 530 - 3 and one side (or edge) of the second plate 531 . For example, the 11-2 th connection member 539 may overlap the first member 600 . For example, the 11-2 th connection member 539 may overlap the 1-2 th member 630 . For example, the eleventh-second connecting member 539 may overlap the bottom portion 631 of the 1-2-th member 630 . For example, the 11-2th connection member 539 may overlap the 5-1th hole 530-3a, but is not limited thereto, and may not overlap the 5-1th hole 530-3a. have.

The device according to another embodiment of the present specification may further include a third air gap AG3.

The third air gap AG3 may be provided between the 1-1 vibrating device 510-1 and the 2-1th vibrating device 530-1, respectively, and the first cover 400 . For example, the third air gap AG3 is formed between the 1-1 vibration device 510-1 and the 2-1 vibration device 530-1, respectively, and the rear surface portion 410 of the first cover 400 . can be provided. For example, the third air gap AG3 may be provided between each of the first vibration generator 513 and the second vibration generator 533 and the rear surface 410 of the first cover 400 . The third air gap AG3 may transmit the sound generated by the 1-1 vibration device 510-1 to the front surface of the device and secure a vibration space of the 1-1 vibration device 510-1. . In addition, the third air gap AG3 transmits the sound generated by the 2-1 vibrating device 530-1 to the front of the device, and secures a vibration space of the 2-1 vibrating device 530-1. can do. The third air gap AG3 according to the exemplary embodiment of the present specification may include a 3-1 th air gap AG3a and a 3-2 th air gap AG3b. In the embodiment of the present specification, the 3-1 air gap AG3a may be a third air gap, and the 3-2 air gap AG3b may be a fourth air gap, and this number does not limit the content of the present specification. .

The 3-1 th air gap AG3a may be provided between the 1-1 th vibration device 510-1 and the first cover 400 . For example, the 3-1 th air gap AG3a may be provided between the 1-1 th vibration device 510-1 and the rear surface 410 of the first cover 400 . For example, the 3-1 th air gap AG3a may be between the rear surface 410 of the first cover 400 and the first vibration generator 513 . For example, the 3-1 air gap AG3a may transmit the sound generated by the first vibration generator 513 to the front surface of the device and secure a vibration space of the first vibration generator 513 .

The 3-2 th air gap AG3b may be provided between the 2-1 th vibration device 530-1 and the first cover 400 . For example, the 3-2 th air gap AG3b may be provided between the 2-1 th vibration device 530-1 and the rear surface 410 of the first cover 400 . For example, the 3-2 th air gap AG3b may be between the rear surface 410 of the first cover 400 and the second vibration generator 533 . For example, the 3-2 th air gap AG3b transmits the sound generated by the second vibration generator 533 to the front surface of the device, and secures a vibration space of the 2-1 th vibration device 530-1. can do.

According to the embodiment of the present specification, since the third air gap AG3 may be provided between the first cover 400 and the vibration device 500, it is possible to provide a device with improved sound pressure characteristics and/or sound quality. . According to the embodiment of the present specification, since the first member 600 is configured, the air impedance of the vibrating device 500 can be controlled, so that a device capable of extending a sound range can be provided. And, since the device according to the embodiment of the present specification includes a film-type vibrating device, it is possible to provide a device with improved sound pressure characteristics and/or acoustic characteristics including a high-pitched sound range, and since the thickness of the device can be reduced, a slim structure It is possible to provide a device having

20 is a graph showing the sound pressure level characteristics of the device according to the embodiment of the present specification. 21 is a graph showing another sound pressure level characteristic of the device according to the embodiment of the present specification.

20 and 21 , a horizontal axis indicates a frequency (Hz), and a vertical axis indicates a sound pressure level (dB). In FIG. 20 , the dotted line indicates the sound pressure level characteristic measured in the device not including the member, and the solid line indicates the sound pressure level characteristic measured in the device including the member. In FIG. 21 , the dotted line indicates the sound pressure level characteristic measured in the device including the member and not including the second cover, and the solid line indicates the measured sound pressure level characteristic in the device including the member and the second cover.

Referring to FIG. 20 , the sound pressure level in the low frequency band (about 300 Hz or less) measured when the first member 600 is included (solid line) is the sound pressure measured when the first member 600 is not included (dashed line) You can see that it is higher than the level. Therefore, as in the embodiment of the present specification, since the first member 600 is configured in the device, it is possible to improve the sound pressure characteristics and acoustic characteristics of the low-pitched range.

Referring to FIG. 21 , in the entire measurement frequency range, the sound pressure level characteristics measured when the first member 600 and the second cover 700 are included (solid line), and the first member 600 is included and the second member 600 is included. 2 It can be seen that the measured sound pressure level characteristics are similar in the case where the cover 700 is not included (dashed line). Accordingly, since the first member 600 is configured in the device as in the embodiment of the present specification, a sound having a consistent sound pressure level can be generated regardless of whether the second cover 700 is applied.

22 is a view showing a rear surface of an apparatus according to another embodiment of the present specification. 23 is an exploded perspective view of the device shown in FIG. 22;

In the display device according to another embodiment of the present invention shown in FIGS. 22 and 23 , the first member 600 is changed from the device described with reference to FIGS. 14 to 19 and the rear vibration member 800 is additionally configured. will be. The description of the one or more first member 600 and the rear vibration member 800 applied to FIGS. 22 and 23 may be equally applied to the apparatus described with reference to FIGS. 1 to 13 . In the following description, duplicate descriptions of the same components other than the changed or added components and related components will be briefly described or omitted.

14 and 15 (or FIGS. 18 and 19 ), 22 , and 23 , an apparatus according to another embodiment of the present specification may further include one or more rear vibration members 800 . For example, the rear vibration member 800 may be disposed on the rear surface of the first member 600 (eg, the 1-1 member 610 or the 1-2 member 630 ). The first member 600 may include a receiving portion 690 in which the rear vibration member 800 is disposed. For example, the accommodating part 690 is a form in which a portion of the first member 600 protrudes from the first member 600 toward the first cover 400 , or is spaced apart from the first cover 400 in the opposite direction. and may be implemented in a protruding form. For example, the portion protruding from the first member 600 (eg, the 1-1 member 610 ) is the bottom portion 611 of the 1-1 member 610 of the first member 600 . Alternatively, it may be implemented in the side 613 . For example, the receiving part 690 may be implemented as a groove formed in a portion of the front surface of the first member 600 or may be implemented as a groove formed in a portion of the rear surface of the first member 600 . For example, a portion of the first member 600 (eg, the 1-1 member 610) in which the groove is formed is the first member 600 (eg, the 1-1 member 610). )) may be formed on the bottom part 611 or the side part 613 . For example, the receiving part 690 may include a hole or a slit. For example, the receiving part 690 may have a shape corresponding to the shape of the rear vibrating member 800 . For example, the receiving part 690 may include a hole or a slit overlapping the rear vibrating member 800 .

The 1-1 member 610 is disposed in the first area A1 of the rear surface 410 of the first cover 400 , and may include one or more first accommodating parts 691 . The number and shape of the first accommodating units 691 may be determined or set according to acoustic characteristics or haptic feedback characteristics to be implemented.

According to the exemplary embodiment of the present specification, the first cover 400 may include a first edge area EA1 and a second edge area ( EA2) may be included. For example, the first member 600 may be disposed in at least one of the first edge area EA1 and the second edge area EA2 of the first cover 400 . For example, the 1-1 member 610 may be disposed in the first edge area EA1 of the rear portion 410 of the first cover 400 . For example, the 1-1 member 610 may move in the second direction Y of the rear portion 410 of the first cover 400 in the first edge area EA1 of the rear portion 410 of the first cover 400 . ) (or in the vertical direction) may be formed long.

According to the embodiment of the present specification, the first cover 400 is formed in the first area UA and the second area LA based on the second intermediate line CL2 in the second direction Y (or vertical direction). may include For example, the one or more first members 600 may be disposed over the first area UA and the second area LA of the first cover 400 .

According to the embodiment of the present specification, the 1-1 member 610 connects the second middle line (or vertical middle line) CL2 in the second direction Y (or vertical direction) of the first cover 400 . As a reference, it may be disposed over the first area UA and the second area LA of the first cover 400 .

According to the embodiment of the present specification, the first member 600 may include first portions UA1 and UA2 and second portions LA1 and LA2. For example, the first parts UA1 and UA2 may correspond to the first area UA of the first cover 400 or may be disposed in the first area UA of the first cover 400 . For example, the second portions LA1 and LA2 may correspond to the second area LA of the first cover 400 or may be disposed in the second area LA of the first cover 400 .

According to the embodiment of the present specification, the 1-1 member 610 is a first portion UA1 disposed on or overlapping the first area UA of the first cover 400 , and the first cover 400 . It may include a second portion LA1 disposed on or overlapping the second area LA. For example, the first area UA may be an upper area, but is not limited thereto. For example, the second area LA may be a lower area and is not limited thereto. For example, the first portion UA1 may be an upper region, and the term is not limited thereto. For example, the second portion LA1 may be a lower region, and the term is not limited thereto.

According to the embodiment of the present specification, the first vibration device 510 may be disposed in the first part UA1 or UA2 or the second part LA1 or LA2 of the first member 600 . For example, the first vibration device 510 may be disposed between the first area UA of the first edge area EA1 of the first cover 400 and the first portion UA1 of the 1-1 member 610 . can be placed in In this case, the first accommodating part 691 may be disposed in the second portion LA1 of the 1-1 member 610 . For example, the first vibration device 510 is disposed in the first part UA1 of the 1-1 member 610 , and the first receiving part 691 is the second part of the 1-1 member 610 . It may be disposed in the portion LA1. The first portion UA1 of the 1-1 member 610 corresponds to the first area UA of the first edge area EA1 of the first cover 400 or the first edge of the first cover 400 . It may be disposed in the first area UA of the area EA1. The second portion LA1 of the 1-1 member 610 corresponds to the second area LA of the first edge area EA1 of the first cover 400 or the first edge of the first cover 400 . It may be disposed in the second area LA of the area EA1.

According to the embodiment of the present specification, the first vibration device 510 includes the second area LA of the first edge area EA1 of the first cover 400 and the second portion of the 1-1 member 610 . (LA1) may be disposed between. In this case, the first accommodating part 691 may be disposed in the first part UA1 of the 1-1 member 610 . For example, the first vibration device 510 is disposed in the second part LA1 of the 1-1 member 610 , and the first receiving part 691 is the first part of the 1-1 member 610 . It may be disposed in the portion UA1.

The 1-2 members 630 may be disposed in the second area A2 of the rear surface 410 of the first cover 400 and may include one or more second accommodating parts 693 . The number and shape of the second accommodating part 693 may be determined or set according to acoustic characteristics or haptic feedback characteristics to be implemented.

According to the embodiment of the present specification, the first and second members 630 may be disposed in the second edge area EA2 of the rear surface 410 of the first cover 400 . For example, in the second edge area EA2 of the rear portion 410 of the first cover 400 , the first and second members 630 may move in the second direction Y of the rear portion 410 of the first cover 400 . ) (or in the vertical direction) may be formed long. For example, when the first and second members 630 are based on the second intermediate line (or vertical intermediate line) CL2 in the second direction Y (or vertical direction) of the first cover 400 , , may be disposed over the first area UA and the second area LA of the first cover 400 . For example, the first 1-2 member 630 may include a first portion UA2 disposed on or overlapping the first area UA of the first cover 400 , and a second area ( ) of the first cover 400 . A second portion LA2 disposed on or overlapping LA) may be included. For example, the first area UA may be an upper area, but is not limited thereto. For example, the second area LA may be a lower area and is not limited thereto. For example, the first portion UA2 may be an upper region, and the term is not limited thereto. For example, the second portion LA2 may be a lower region, and the term is not limited thereto.

According to the embodiment of the present specification, the second vibration device 530 includes the first area UA of the second edge area EA2 of the first cover 400 and the first portion of the 1-2 member 630 . It can be placed between (UA2). In this case, the second accommodating part 693 may be disposed on the second portion LA2 of the first and second members 630 . For example, the second vibration device 530 is disposed in the first part UA2 of the first 1-2 member 630 , and the second receiving part 693 is the second part of the 1-2 member 630 . It may be disposed in the portion LA2. The first portion UA2 of the first 1-2 member 630 may correspond to the first area UA of the second edge area EA2 of the first cover 400 or the second edge of the first cover 400 . It may be disposed in the first area UA of the area EA2. The second portion LA2 of the first and second members 630 may correspond to the second area LA of the second edge area EA2 of the first cover 400 or the second edge of the first cover 400 . It may be disposed in the second area LA of the area EA2 .

According to the embodiment of the present specification, the second vibration device 530 includes the second area LA of the second edge area EA2 of the first cover 400 and the second portion of the 1-2 member 630 . (LA2) may be disposed between. In this case, the second accommodating part 693 may be disposed in the first part UA2 of the first 1-2 member 630 . For example, the second vibration device 530 is disposed in the second portion LA2 of the first 1-2 member 630 , and the second receiving part 693 is disposed in the first part of the 1-2 member 630 . It may be disposed in the portion UA2.

According to the device according to another embodiment of the present specification, the rear vibration member 800 may be disposed on the first member 600 . For example, the rear vibration member 800 may be disposed in the receiving portion 690 formed in the first member 600 . For example, the rear vibration member 800 may be disposed on the first portion UA1 or UA2 or the second portion LA1 or LA2 of the first member 600 . For example, the rear vibrating member 800 is disposed on the front surface of the first member 600 facing the first cover 400 or of the first member 600 facing the front surface of the first member 600 . It may be disposed on the back.

The rear vibrating member 800 vibrates according to the vibration of the first member 600 according to the vibration of the corresponding vibrating device 500 to improve the acoustic characteristics of the low-pitched range. The rear vibration member 800 vibrates according to the vibration of the first member 600 according to the vibration of the vibration device 500 , and the vibration device 500 serves as an additional vibration source, so the intensity and sense of vibration of the haptic feedback (or vibration characteristics) can be improved. Accordingly, the rear vibration member 800 may be expressed as a radiation member, a rear radiation member, an acoustic radiation member, an auxiliary vibration member, a haptic member, a haptic feedback member, an excitation vibration member, or a reactive vibration member, etc. it is not

The rear vibration member 800 according to the embodiment of the present specification may include a first rear vibration member 810 and a second rear vibration member 830 .

The first rear vibration member 810 may be disposed on the 1-1 member 610 . For example, the first rear vibration member 810 may be disposed on the bottom portion 611 of the first-first member 610 . For example, the first rear vibration member 810 may be disposed on the front or rear surface of the bottom portion 611 of the 1-1 member 610 . For example, the first back vibrating member 810 may be disposed in the first receiving portion 691 of the 1-1 member 610 .

The first rear vibration member 810 may be disposed in the first portion UA1 or the second portion LA1 of the 1-1 member 610 . For example, the first rear vibration member 810 may be disposed in a portion of the 1-1 member 610 that is different from the 1-1 member 610 in which the first vibration device 510 is disposed. For example, the first rear vibration member 810 is disposed in the second portion LA1 of the 1-1 member 610 , and the first vibration device 510 is disposed in the second portion LA1 of the 1-1 member 610 . 1 may be disposed in the portion UA1. For example, the first rear vibration member 810 is disposed in the first portion UA1 of the 1-1 member 610 , and the first vibration device 510 is disposed in the first portion UA1 of the 1-1 member 610 . The second portion LA1 may be disposed.

The first rear vibration member 810 according to the embodiment of the present specification may further include a first vibration plate. The first rear vibration member 810 may further include a first vibration plate and a first rear connection member interposed between the bottom portion 611 of the 1-1 member 610 and the first vibration plate. For example, the first diaphragm may be disposed on the rear surface of the first accommodating part 691 . For example, the first diaphragm may include the 1-1 member 610 according to the vibration of at least one 1-1 vibrating device 510-1 and the 1-2 vibrating device 510-2 of the first vibrating device. ) can output haptic vibration by vibrating in response to the vibration. For example, the first back oscillation member 810 may include a first emitting member, a first back emitting member, a first acoustic emitting member, a first auxiliary oscillating member, a first haptic member, a first haptic feedback member, a first female It may be expressed as a vibration member, a first reactive vibration member, or the like.

In order to ensure sufficient vibration characteristics of the first rear vibration member 810 and to match an acoustic phase between the first rear vibration member 810 and the first vibration device 510, the first rear vibration member The 810 and the first vibration device 510 may be spaced apart from each other by a distance (a first distance) L1 of a predetermined ratio.

According to the embodiment of the present specification, the first distance L1 is a region ( Alternatively, it may be a distance between the center of the exposed region 510 - 2a and the center of the first rear vibration member 810 , and the reference position for the first distance L1 is not limited thereto. For example, the first distance L1 is a distance between the center of the first and second vibration devices 510 - 2 of the first vibration device 510 in a region opposite to each other based on the second intermediate line CL2 and the first distance L1 . It may be a distance between the centers of the rear vibration members 810 .

The second rear vibration member 830 may be disposed on the 1-2 member 630 . For example, the second back vibration member 830 may be disposed on the bottom portion 631 of the first 1-2 member 630 . For example, the second rear vibration member 830 may be disposed on the front or rear surface of the bottom portion 631 of the first and second members 630 . For example, the second back vibration member 830 may be disposed in the second receiving portion 693 of the 1-2 member 630 .

The second rear vibration member 830 may be disposed in the first part UA2 or the second part LA2 of the 1-2 member 630 . For example, the second rear vibration member 830 may be disposed in a different region from the second vibration device 530 . For example, the second rear vibration member 830 is disposed in the second portion LA2 of the 1-2 member 630 , and the second vibration device 530 is the second vibration device 530 of the 1-2 member 630 . 1 may be disposed in the portion UA2. For example, the second back vibration member 830 is disposed in the first portion UA2 of the 1-2 member 630 , and the second vibration device 530 is the second vibration member 530 of the 1-2 member 630 . The second portion LA2 may be disposed.

The second rear vibration member 830 according to the embodiment of the present specification may further include a second vibration plate. The second rear vibration member 830 may further include a second rear connection member interposed between the second vibration plate and the bottom portion 631 of the first and second members 630 . For example, the second diaphragm may be disposed on the rear surface of the receiving part 693 . For example, the second diaphragm may include the second diaphragm according to the vibration of at least one 2-1 th vibration device 530-1 and the 2-2 th vibration device 530-2 of the second vibration device 530 . A haptic vibration may be output by vibrating in response to the vibration of the member 630 . For example, the second back oscillation member 830 may include a second emitting member, a second back emitting member, a second acoustic emitting member, a second auxiliary oscillating member, a second haptic member, a second haptic feedback member, a second female It may be expressed as a vibration member, or a second reactive vibration member, or the like.

In order to ensure sufficient vibration characteristics of the second rear vibration member 830 and to match the acoustic phase between the second rear vibration member 830 and the second vibration device 530, the second rear vibration member The 830 and the second vibration device 530 may be spaced apart by a distance (second distance) L2 of a predetermined ratio.

According to the embodiment of the present specification, the second distance L2 is the region ( Alternatively, it may be a distance between the center of the exposed area) 530 - 2a and the center of the second rear vibration member 830 , and the reference position for the second distance L2 is not limited thereto. For example, the second distance L2 is an area opposite to each other with respect to the second intermediate line CL2 , which is the center of the 2-2 vibration device 530 - 2 of the second vibration device 530 . It may be a distance between the centers of the rear vibration members 830 . For example, the first distance L1 between the first backside vibration member 810 and the first vibration device 510 is the second distance between the second backside vibration member 830 and the second vibration device 530 . It may be the same as or different from (L2).

According to the embodiment of the present specification, the 1-1 vibration device 510-1, the 1-2 vibration device 510-2, the second member 510-3, the 1-1 member 610, and the first rear vibration member 810 may constitute a first vibration generating device. According to the embodiment of the present specification, the 2-1 vibration device 530-1, the 2-2 vibration device 530-2, the third member 530-3, the 1-2 member 630, and the second rear vibration member 830 may constitute a second vibration generating device.

24 is a diagram illustrating a measurement point on a display member for measuring vibration acceleration in an apparatus according to an embodiment of the present specification. 24 is a view showing the front of the device.

In FIG. 24 , the first to third measuring points MP1 , MP2 , and MP3 correspond to (or overlap with) the 1-1 member 610 in the device shown in FIG. 22 , or the rear surface of the first cover 400 . A position corresponding to (or overlapping with) the first edge area EA1 of 410 , and the first measurement point MP1 is the first vibrating device 510 (or 1-2 of the first vibrating device 510 ). A position corresponding to (or overlapping with) the vibration device 510 - 2 ), and the third measuring point MP3 is a position corresponding to (or overlapping with) the first rear vibration member 810 , and a second measurement point MP2 . ) is an intermediate position between the first measurement point MP1 and the third measurement point MP3.

Table 1 below shows the results of measuring vibration accelerations at the first to third measurement points MP1, MP2, and MP3 shown in FIG. 24 . The comparison value is the vibration acceleration measured at the first to third measurement points MP1, MP2, and MP3 of the device to which the first member 600 and the rear vibration member 800 are not applied. The experimental values are vibration accelerations measured at the first to third measurement points MP1, MP2, and MP3 of the device to which the first member 600 and the rear vibration member 800 are applied. The comparative values and experimental values are measured by applying a sine wave of 5 volts having 200 Hz to the second vibration device 530 .

measuring point Comparison value (m/s ² ) Experimental value (m/s ² ) MP1 37.68 37.68 MP2 21.35 30.76 MP3 20.77 32.59

Referring to Table 1, although the comparison value and the experimental value measured at the first measurement point MP1 corresponding to (or overlapping with) the first vibration device 510 are the same, the second measurement point MP2 and the third measurement point It can be seen that the experimental value measured in each (MP3) is larger than the comparison value. Therefore, in the case of a device including the first member 600 and the rear vibrating member 800 as in another embodiment of the present specification, the device without applying the first member 600 and the rear vibrating member 800 and In comparison, the vibration acceleration may be increased, and accordingly, the response speed of the haptic feedback may be improved. Accordingly, since the vibration is transmitted at a high speed even to a region that does not correspond to (or overlap with) the first vibration device 510 , the feeling of vibration or the vibration characteristic of the haptic feedback may be improved.

The vibration device according to the embodiment of the present specification may be applied to a vibration 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 (desktop PC), laptop PC, netbook computer (netbook computer), workstation, navigation, vehicle navigation, vehicle device, vehicle display device, theater use It may be applied to a device, a display device for a theater, a television, a wallpaper device, a signage device, a game device, a notebook computer, a monitor, a camera, a camcorder, and a home appliance. And, the vibration device according to the embodiment of the present specification may be applied to an organic light emitting lighting device or an inorganic light emitting lighting device. When the vibration device is applied to a lighting device, it may serve as a lighting device and a speaker. In addition, when the vibration device according to an embodiment 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 according to an embodiment of the present specification may be described as follows.

A device according to some embodiments of the present specification includes a vibrating member, a first cover disposed on the rear surface of the vibrating member, a vibration device disposed on the rear surface of the first cover, and a second device disposed on the rear surface of the first cover and disposed on the rear surface of the vibrating device. It may include a first member, and a rear oscillation member disposed on the first member.

According to some embodiments of the present specification, the rear vibration member may be disposed on the front surface of the first member opposite to the first cover, or disposed on the rear surface of the first member opposite the front surface of the first member.

According to some embodiments of the present specification, the first member may include a receptacle, and the rear vibrating member may be disposed within the receptacle.

According to some embodiments of the present specification, a portion of the first member may protrude toward the first cover or in a direction opposite to the first cover.

According to some embodiments of the present specification, the receiving unit may include a groove formed in a portion of the front surface of the first member or a groove formed in a portion of the rear surface of the first member.

According to some embodiments of the present specification, the first cover includes a first edge region and a second edge region based on a first intermediate line in a horizontal direction, and the first member includes a first edge region and a second edge region of the first cover. It may be disposed in at least one of the two edge regions.

According to some embodiments of the present specification, the first cover includes an upper region and a lower region with respect to a second middle line in the longitudinal direction, and the first member is disposed over the first region and the second region of the first cover. can be

According to some embodiments of the present specification, the first member includes a first portion corresponding to a first area of the first cover and a second portion corresponding to a second area of the first cover, and the vibrating device includes the first member may be disposed on the first portion or the second portion of the , and the rear vibrating member may be disposed on the first portion or the second portion of the first member.

According to some embodiments of the present specification, the first member includes a 1-1 member disposed on a rear surface of a first edge region of the first cover, and a first 1-2 member disposed on a rear surface of a second edge region of the first cover. member, wherein the 1-1 member and the 1-2 member each include a first portion corresponding to a first area of the first cover and a second portion corresponding to a second area of the first cover, The oscillation member may include a first rear oscillation member disposed on the first portion or the second portion of the 1-1 member; and a second rear vibrating member disposed on the first portion or the second portion of the first 1-2 member.

According to some embodiments of the present specification, the vibrating device includes a first vibrating device disposed on a rear surface of the first edge region of the first cover, wherein the first vibrating device is a first part or a second part of the 1-1 member portion, and the first backside vibrating member may be disposed on the first portion or the second portion of the 1-1 member.

According to some embodiments of the present specification, the vibrating device includes a second vibrating device disposed on the rear surface of the second edge region of the first cover, and the second vibrating device is the first part or the second of the first 1-2 member. portion, and the second back vibrating member may be disposed on the first portion or the second portion of the first 1-2 member.

According to some embodiments of the present specification, the vibrating device includes a first vibrating device disposed on the rear surface of the first edge region of the first cover, and a second vibrating device disposed on the rear surface of the second edge region of the first cover. can do.

According to some embodiments of the present specification, the first distance between the first vibrating device and the first backside vibrating member may be the same as or different from the second distance between the second vibrating device and the second backside vibrating member.

According to some embodiments of the present specification, the first vibrating device is disposed in the first part or the second part of the 1-1 member, and the first rear vibrating member is the first part or the second part of the 1-1 member can be placed in

According to some embodiments of the present specification, the second vibrating device is disposed on the first part or the second part of the first 1-2 member, and the second back side vibrating member is the first part or the second part of the first 1-2 member can be placed in

According to some embodiments of the present specification, the first cover includes a 1-1 hole disposed in the first edge region, and a first 1-2 hole disposed in the second edge region, and the first vibrating device comprises a first The -1 hole may be covered, and the second vibration device may cover the 1-2 first hole.

According to some embodiments of the present specification, the first vibrating device is disposed adjacent to the 1-1 vibrating device and the 1-1 vibrating device disposed on the rear surface of the first edge region of the first cover, so that the 1-1 hole and a first 1-2 vibrating device covering A 2-2 second vibration device covering the -2 hole may be included.

According to some embodiments of the present specification, each of the 1-1 vibration device and the 2-1 vibration device is a film-type vibration device, and each of the 1-2 vibration device and the 2-2 vibration device is a coil-type vibration device. can

According to some embodiments of the present specification, each of the 1-1 vibrating device and the 2-1 vibrating device includes a vibrating unit including a piezoelectric material, a first electrode layer disposed on a first surface of the vibrating unit, and a first surface of the vibrating unit. and a second electrode layer disposed on a second surface different from the second electrode layer.

According to some embodiments of the present specification, the 1-2 vibration device includes a first plate and a first vibration generator disposed on the rear surface of the first edge region of the first cover, and the second vibration device 2-2 includes the first and a second plate and a second vibration generator disposed on the rear surface of the second edge region of the cover.

According to some embodiments of the present specification, the first plate is disposed on the rear surface of the first edge region of the first cover, and the first vibration generator is disposed on the rear surface of the first plate or the first vibration generator is disposed on the second surface of the first cover. The first plate may be disposed on the rear side of the edge region, and the first plate may be disposed on the rear side of the first vibration generator.

According to some embodiments of the present specification, the second plate is disposed on the rear surface of the second edge region of the first cover, and the second vibration generator is disposed on the rear surface of the second plate or the second vibration generator is the second vibration generator of the first cover. The second plate may be disposed on the rear surface of the edge region, and the second plate may be disposed on the rear surface of the second vibration generator.

According to some embodiments herein, the first vibration generator and the second vibration generator each comprise a plurality of first portions of inorganic material and a plurality of second portions of organic material disposed between the plurality of first portions. Eastern; a first electrode layer disposed on the first surface of the vibrating unit; and a second electrode layer disposed on the second surface of the vibrating unit.

According to some embodiments of the present specification, each of the first vibration generator and the second vibration generator includes a vibrating part including a piezoelectric material, a first electrode layer disposed on a first surface of the vibrating part, and a second different from the first surface of the vibrating part. It may include a second electrode layer disposed on the surface.

According to some embodiments of the present specification, the first vibrating device further includes a second member disposed on a rear surface of the first edge region of the first cover, and the second vibration device includes a rear surface of the second edge region of the first cover. It may further include a third member disposed on the.

According to some embodiments of the present specification, the 1-1 vibration device and the 1-2 vibration device are disposed on the rear surface of the second member, and the 2-1 vibration device and the 2-2 vibration device are disposed on the third member. It may be disposed on the back.

According to some embodiments of the present specification, the second member includes a 4-1 hole corresponding to the 1-1 vibration device and a 4-2 hole corresponding to the 1-2 vibration device, wherein the third member includes: It may include a 5-1 th hole corresponding to the 2-1 th vibration device and a 5-2 guide hole corresponding to the 2-2 th vibration device.

According to some embodiments of the present specification, the 4-1th hole may correspond to the 1-1th hole, and the 5-1th hole may correspond to the 1-2th hole.

According to some embodiments of the present specification, the vibrating member may include at least one of a display panel having a pixel for displaying an image, a light emitting diode lighting panel, an organic light emitting lighting panel, and an inorganic light emitting lighting panel.

According to some embodiments of the present specification, the vibrating member may include one or more of metal, wood, rubber, plastic, glass, fiber, cloth, paper, and leather.

According to some embodiments of the present specification, the vibrating member is a display panel having a pixel for displaying an image, a screen panel on which an image is projected from the display device, a lighting panel, a shiny panel, an interior material of a transportation means, a glass window of a transportation means, transportation It may include one or more of exterior material of means, ceiling material of building, interior material of building, glass window of building, interior material of aircraft, glass window of aircraft, leather, and mirror.

According to some embodiments of the present specification, the apparatus further includes a display member including a display panel displaying an image, wherein the display member includes a backlight disposed on a rear surface of the display panel, and a guide member disposed between the display panel and the backlight. may further include.

A device according to some embodiments of the present specification includes a display member including a display panel displaying an image, a front member disposed on the front side of the display member, and a rear side of the first cover, the display member, the first cover, and vibration The device may further include a second cover accommodating the first member on which the rear vibrating member is disposed.

A vibration generating device according to some embodiments of the present specification includes a first member including a first hole and a second hole, a first vibration device disposed in the first hole, a second vibration device disposed in the second hole, and a vibration member It may include a second member connected to the rear surface of the first member and covering the first vibration device and the second vibration device, and a rear surface vibration member disposed on the second member.

According to some embodiments of the present specification, the rear vibration member may vibrate according to vibration of at least one of the first vibration device and the second vibration device.

According to some embodiments of the present specification, the second member may include a receiving portion, and the rear vibrating member may be disposed in the receiving portion.

According to some embodiments of the present specification, the receiving portion may include a groove formed in a portion of the front surface or a portion of the rear surface of the second member.

According to some embodiments of the present specification, the receiving unit may include a hole overlapping the rear vibrating member.

According to some embodiments of the present specification, the rear vibrating member further includes a diaphragm disposed in the receiving portion, wherein the diaphragm vibrates according to the vibration of the second member according to vibration of at least one of the first vibrating device and the second vibrating device can do.

According to some embodiments of the present specification, the first vibrating device outputs a first sound pressure to the vibrating member through the first hole, and the second vibrating device provides a second sound pressure different from the first sound pressure to the vibrating member through the second hole. , and the rear vibration member may output a haptic vibration according to vibration of at least one of the first vibration device and the second vibration device.

According to some embodiments of the present specification, the first vibration device may be a vibration generator having a piezoelectric element, and the second vibration device may be a coil-type vibration generator.

According to some embodiments herein, the first vibration device is disposed between the first member and the second member and covers the first hole, and the second vibration device is disposed between the first member and the second member and the second member Hall can be covered.

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: front member 200: display member
300: guide member 400: first cover
500: vibration device 510: first vibration device
510-1: 1-1 vibration device 510-2: 1-2 vibration device
530: second vibration device 530-1: 2-1 vibration device
530-2: 2-2 vibration device 600: first member
700: second cover 800: rear vibration member

Claims (40)

no vibration;
a first cover disposed on a rear surface of the vibrating member;
a vibrating device disposed on the rear surface of the first cover;
a first member disposed on the rear surface of the first cover and located on the rear surface of the vibrating device; and
and a backside oscillation member disposed on the first member. The method of claim 1,
and the rear oscillation member is disposed on a front surface of the first member opposite the first cover, or disposed on a rear surface of the first member opposite the front surface of the first member. The method of claim 1,
The first member includes a receiving portion,
and the backside vibrating member is disposed within the receptacle. 4. The method of claim 3,
The apparatus of claim 1, wherein a portion of the first member protrudes toward the first cover or in a direction opposite to the first cover. 4. The method of claim 3,
The apparatus of claim 1, wherein the receiving portion is a groove formed in a portion of the front surface of the first member or a groove formed in a portion of the rear surface of the first member. The method of claim 1,
The first cover includes a first edge area and a second edge area based on a first intermediate line in the horizontal direction,
and the first member is disposed in at least one of the first edge region and the second edge region of the first cover. 7. The method of claim 6,
The first cover includes a first area and a second area based on a second intermediate line in the vertical direction,
and the first member is disposed over the first area and the second area of the first cover. 8. The method of claim 7,
the first member includes a first portion corresponding to a first area of the first cover and a second portion corresponding to a second area of the first cover;
the vibrating device is disposed on the first part or the second part of the first member,
and the backside oscillation member is disposed on the first portion or the second portion of the first member. 8. The method of claim 7,
The first member includes a 1-1 member disposed on a rear surface of the first edge region of the first cover, and a first 1-2 member disposed on a rear surface of the second edge region of the first cover, and ,
Each of the 1-1 member and the 1-2 member includes a first portion corresponding to a first area of the first cover, and a second portion corresponding to a second area of the first cover,
The rear vibration member,
a first rear oscillation member disposed on the first portion or the second portion of the 1-1 member; and
and a second backside vibrating member disposed in the first portion or the second portion of the first 1-2 member. 10. The method of claim 9,
The vibrating device includes a first vibrating device disposed on a rear surface of the first edge region of the first cover,
the first vibrating device is disposed on the first part or the second part of the 1-1 member,
and the first backside vibrating member is disposed on the first portion or the second portion of the 1-1 member. 10. The method of claim 9,
The vibrating device includes a second vibrating device disposed on a rear surface of the second edge region of the first cover,
the second vibrating device is disposed on the first part or the second part of the first 1-2 member;
and the second backside oscillation member is disposed on the first portion or the second portion of the first 1-2 member. 10. The method of claim 9,
and the vibrating device includes a first vibrating device disposed on a rear surface of the first edge region of the first cover, and a second vibration device disposed on a rear surface of the second edge region of the first cover. 13. The method of claim 12,
A first distance between the first vibrating device and the first backside vibrating member is equal to or different from a second distance between the second vibrating device and the second backside vibrating member. 13. The method of claim 12,
The first cover includes a 1-1 hole disposed in the first edge region, and a 1-2 hole disposed in the second edge region,
The first vibration device covers the 1-1 hole,
and the second vibrating device covers the first 1-2 holes. 15. The method of claim 14,
The first vibration device includes a 1-1 vibration device disposed on a rear surface of the first edge region of the first cover, and a first vibration device disposed adjacent to the 1-1 vibration device to cover the 1-1 hole. 1-2 vibrating device,
The second vibration device includes a 2-1 vibration device disposed on a rear surface of the second edge region of the first cover, and a second vibration device disposed adjacent to the 2-1 vibration device to cover the 1-2 holes. 2-2 A device comprising a vibrating device. 16. The method of claim 15,
Each of the 1-1 vibration device and the 2-1 vibration device is a film-type vibration device,
The apparatus of claim 1, wherein each of the 1-2 vibration device and the 2-2 vibration device is a coil-type vibration device. 16. The method of claim 15,
Each of the 1-1 vibrating device and the 2-1 vibrating device,
a vibrating unit including a piezoelectric material;
a first electrode layer disposed on a first surface of the vibrating unit; and
and a second electrode layer disposed on a second surface different from the first surface of the vibrating part. 16. The method of claim 15,
The 1-1 vibration device includes a first plate and a first vibration generator disposed on a rear surface of the first edge region of the first cover,
wherein the 2-1 vibration device includes a second plate and a second vibration generator disposed on a rear surface of the second edge region of the first cover. 19. The method of claim 18,
the first plate is disposed on the rear surface of the first edge region of the first cover,
the first vibration generator is disposed on the rear surface of the first plate or on the rear surface of the first edge region of the first cover;
and the first plate is disposed on a rear surface of the first vibration generator. 19. The method of claim 18,
the second plate is disposed on a rear surface of the second edge region of the first cover;
the second vibration generator is disposed on the rear surface of the second plate or on the rear surface of the second edge region of the first cover;
and the second plate is disposed on a rear surface of the second vibration generator. 19. The method of claim 18,
Each of the first vibration generator and the second vibration generator,
a vibrating unit including a plurality of first portions of an inorganic material and a plurality of second portions of an organic material disposed between the plurality of first portions;
a first electrode layer disposed on a first surface of the vibrating unit; and
and a second electrode layer disposed on a second surface different from the first surface of the vibrating part. 19. The method of claim 18,
Each of the first vibration generator and the second vibration generator,
a vibrating unit including a piezoelectric material;
a first electrode layer disposed on a first surface of the vibrating unit; and
and a second electrode layer disposed on a second surface different from the first surface of the vibrating part. 16. The method of claim 15,
The first vibrating device further includes a second member disposed on a rear surface of the first edge region of the first cover,
and the second vibrating device further includes a third member disposed on a rear surface of the second edge region of the first cover. 24. The method of claim 23,
The 1-1 vibration device and the 1-2 vibration device are disposed on the rear surface of the second member,
The apparatus of claim 1, wherein the 2-1 oscillation device and the 2-2 oscillation device are disposed on a rear surface of the third member. 25. The method of claim 24,
The second member includes a 4-1 hole corresponding to the 1-1 vibration device and a 4-2 hole corresponding to the 1-2 vibration device,
The third member includes a 5-1 th hole corresponding to the 2-1 th vibration device and a 5-2 th hole corresponding to the 2-2 th vibration device. 26. The method of claim 25,
The 4-1 hole corresponds to the 1-1 hole,
and the 5-1 hole corresponds to the 1-2 hole. 27. The method according to any one of claims 1 to 26,
The vibrating member includes at least one of a display panel having a pixel for displaying an image, a light emitting diode lighting panel, an organic light emitting lighting panel, and an inorganic light emitting lighting panel. 27. The method according to any one of claims 1 to 26,
The vibration member comprises at least one of metal, wood, rubber, plastic, glass, fiber, cloth, paper, and leather. 27. The method according to any one of claims 1 to 26,
The vibrating member may include a display panel having pixels for displaying an image, a screen panel on which an image is projected from a display device, a lighting panel, a shiny panel, an interior material of a transportation means, a glass window of a transportation means, an exterior material of a transportation means, a ceiling material of a building, An apparatus comprising one or more of a building interior material, a building glass window, an aircraft interior material, an aircraft glass window, and a mirror. 27. The method according to any one of claims 1 to 26,
Further comprising a display member including a display panel for displaying an image,
The display member may include a backlight disposed on a rear surface of the display panel; and a guide member between the display panel and the backlight. Device. 27. The method according to any one of claims 1 to 26,
a display member including a display panel displaying an image;
a front member disposed on a front surface of the display member; and
The apparatus of claim 1, further comprising: a second cover disposed on a rear surface of the first cover and accommodating the display member, the first cover, the vibration device, and the first member on which the rear surface vibration member is disposed. a first member including a first hole and a second hole;
a first vibration device disposed in the first hole;
a second vibration device disposed in the second hole;
a second member connected to a rear surface of the vibrating member and covering the first member and the first and second vibrating devices; and
and a rear vibration member disposed on the second member. 33. The method of claim 32,
and the rear vibration member vibrates according to vibration of at least one of the first vibration device and the second vibration device. 33. The method of claim 32,
The second member further comprises a receiving portion,
The rear vibration member is disposed in the receiving portion, vibration generating device. 35. The method of claim 34,
The accommodating portion includes a groove formed in a portion of the front surface or a portion of the rear surface of the second member, the vibration generating device. 35. The method of claim 34,
The accommodating portion includes a hole overlapping the rear vibration member, vibration generating device. 37. The method according to any one of claims 32 to 36,
The rear vibration member further includes a vibration plate disposed in the receiving portion,
and the vibration plate vibrates according to vibration of the second member according to vibration of at least one of the first vibration device and the second vibration device. 37. The method according to any one of claims 32 to 36,
The first vibration device outputs a first sound pressure to the vibration member through the first hole,
The second vibration device outputs a second sound pressure different from the first sound pressure to the vibration member through the second hole,
The rear vibration member outputs a haptic vibration according to vibration of at least one of the first vibration device and the second vibration device. 37. The method according to any one of claims 32 to 36,
The first vibration device is a vibration generator having a piezoelectric element,
and the second vibration device is a coil-type vibration generator. 37. The method according to any one of claims 32 to 36,
the first vibrating device is disposed between the first member and the second member and covers the first hole;
and the second vibration device is disposed between the first member and the second member and covers the second hole.

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