KR102422063B1 - Display apparatus - Google Patents

Abstract

A display device according to an embodiment of the present specification includes a display panel for displaying an image, a support member disposed on a rear surface of the display panel, at least one sound generator disposed on a rear surface of the display panel, and the support member and the at least a connection unit for connecting one sound generating device, wherein the at least one sound generating device includes a plate disposed to be spaced apart from the support member, a frame outside the plate, a magnet disposed on the plate, and a center pole , a bobbin around the center pole, a damper between the frame and the bobbin, and a coil outside the bobbin, wherein the connection part is disposed between the support member and the frame, and the at least one sound generating device. is deformed according to the vibration of the , and vibrates together with the at least one sound generating device to vibrate the display panel to generate sound in front of the display panel.

Description

display device {DISPLAY APPARATUS}

The present specification relates to a display device, and more particularly, to a display device capable of generating sound by vibrating a display panel.

Recently, as we enter the information age, the field of display that visually expresses electrical information signals has developed rapidly, and in response to this, various display devices with excellent performance such as thinness, weight reduction, and low power consumption (Display Apparatus) have been developed. is being developed

Examples of such a display device include a liquid crystal display device, a field emission display device, an organic light emitting diode display device, a light emitting diode display device, a quantum dot light emitting display device, and a micro light emitting diode display device.

Among them, the liquid crystal display includes an array substrate including thin film transistors, an upper substrate including a color filter and/or a black matrix, and a liquid crystal layer between the array substrate and the upper substrate. The arrangement state of the liquid crystal layer is adjusted according to the electric field applied between two electrodes in the pixel area, and the transmittance of light is adjusted according to the arrangement state to display an image.

In addition, the organic light emitting display device is a self-luminous device, and has advantages in that the response speed is fast and luminous efficiency, luminance, and viewing angle are large compared to other display devices.

The display device may include a display panel for displaying an image and an audio device for outputting a sound together with the image. In such a display device, the sound generated through the sound device travels toward the rear side of the display panel or the lower side of the display panel instead of the front side of the display panel. Accordingly, there is a problem in that the sound quality is deteriorated due to interference with the sound reflected from the wall or floor. Accordingly, it is difficult to provide a clear sound from the sound device without disturbing the user's immersion.

In addition, when a speaker included in a set device such as a television (TV), a computer monitor, a notebook computer, or a desktop PC is configured, the speaker occupies a certain space, so there is a problem with the design and space arrangement of the set device. Occurs.

Accordingly, the inventor of the present specification recognized the above-mentioned problems, and conducted various experiments in which the direction of sound when viewing an image from the front of the display panel can be the front of the display panel, and the sound quality can be improved. . Through several experiments, a display device having a new structure that can generate sound and improve sound quality has been invented so that the direction of sound is directed toward the front of the display panel.

An object to be solved according to an embodiment of the present specification is to provide a display device including a sound generating device capable of generating a sound so that the sound proceeding direction is in front of a display panel, and having improved sound output characteristics in the low-pitched range will be.

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

A display device according to an embodiment of the present specification includes a display panel for displaying an image, a support member disposed on a rear surface of the display panel, at least one sound generator disposed on a rear surface of the display panel, and the support member and the at least a connection unit for connecting one sound generating device, wherein the at least one sound generating device includes a plate disposed to be spaced apart from the support member, a frame outside the plate, a magnet disposed on the plate, and a center pole , a bobbin around the center pole, a damper between the frame and the bobbin, and a coil outside the bobbin, wherein the connection part is disposed between the support member and the frame, and the at least one sound generating device. is deformed according to the vibration of the , and vibrates together with the at least one sound generating device to vibrate the display panel to generate sound in front of the display panel.

A display device according to an exemplary embodiment of the present specification includes a display panel that displays an image and includes a first area, a second area, and a third area, the first area, the second area, and the rear surface of the display panel; a plate, a frame outside the plate, a magnet and a center pole disposed on the plate, a bobbin around the center pole, a coil around the bobbin, and at least one sound generating device including a damper between a frame and the bobbin, a support member disposed on a rear surface of the display panel and disposed to be spaced apart from the plate, and disposed in an area spaced apart from the plate and the support member and a plurality of connecting parts deformed according to vibration of the at least one sound generating device to give elasticity to the plate, the plate, the magnet, the center pole, the bobbin, the coil, the frame, the damper and The plurality of connection parts vibrate together to vibrate the display panel to generate sound.

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

The display device according to the exemplary embodiment of the present specification constitutes a sound generating device that generates sound by vibrating the display panel, so that the sound can be generated so that the sound travel direction of the display device is the front side of the display panel. Accordingly, it is possible to improve the immersion feeling of the viewer viewing the image of the display device.

In addition, the display device according to the embodiment of the present specification comprises a sound generating device that generates a sound by vibrating the display panel, so that it is not necessary to configure a speaker, thereby improving the degree of freedom for the design of the set device and the arrangement of the speaker. have.

In addition, the display device according to the embodiment of the present specification may provide a display device capable of improving sound output characteristics in a low-pitched range by arranging the support member and the sound generating device to be spaced apart from each other.

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And, in the display device according to the embodiment of the present specification, the support member and the sound generating device are spaced apart, and a connection part is formed between the support member and the sound generating device, so that the sound output characteristics in the low range can be improved. device can be provided.

Further, in the display device according to the embodiment of the present specification, by configuring the partition and at least one pad on at least one side of the partition, the peak and dip phenomenon caused by the standing wave can be reduced, so that the sound output characteristic can be improved.

In addition, the display device according to the embodiment of the present specification may reduce the wave phenomenon of the display panel by configuring at least one pad on at least one side of the partition and at least one member on at least one side of the partition, , it is possible to provide a display device having improved sound output characteristics.

In addition, the display device according to the embodiment of the present specification configures a partition between at least one or more sound generating devices disposed on the display panel, so that sound can be separated by the partition, so that stereo sound can be realized and sound output is possible. It is possible to provide a display device with improved characteristics.

And, the display device according to the embodiment of the present specification comprises a partition, at least one pad on at least one side of the partition, and at least one member, and at least one material of the partition, pad, and member is made of a different material. By doing so, the wave phenomenon of the display panel can be reduced.

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 problems to be solved above, the means for solving the problems, and the effects do not specify the essential characteristics of the claims, the scope of the claims is not limited by the matters described in the content of the invention.

1A is a view showing a display device including a sound generating device according to an embodiment of the present specification.
FIG. 1B is a cross-sectional view taken along line II′ of FIG. 1A .
2A and 2B are cross-sectional views of a sound generating device according to an embodiment of the present specification.
3A and 3B are views for explaining the content of generating sound of the sound generating device according to the first structure of the embodiment of the present specification.
4A and 4B are views for explaining the content of generating sound of the sound generating device according to the second structure of the embodiment of the present specification.
5 is a view showing a coupling structure of a sound generating device and a support member according to an embodiment of the present specification.
6A and 6B are views illustrating a sound generating device according to another embodiment of the present specification.
7 is a diagram illustrating sound output characteristics according to an embodiment of the present specification.
8A to 8C are diagrams illustrating an embodiment of a sound generating device and a partition according to an embodiment of the present specification.
9A to 9C are diagrams illustrating another embodiment of a sound generating device and a partition according to an embodiment of the present specification.
10A to 10C are diagrams illustrating another embodiment of a sound generating device and a partition according to an embodiment of the present specification.
11A to 11C are diagrams illustrating another embodiment of a sound generating device and a partition according to an embodiment of the present specification.

Advantages and features of the present specification and methods of 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 these 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 the possessor of 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 specifically stated otherwise.

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, when the positional relationship of the two parts is described as "on", "on", "under", "next to", etc., for example, "directly" or "directly" One or more other parts may be placed between the two parts unless this is used.

In the case of a description of a temporal relationship, for example, when the temporal precedence is described as “after”, “after”, “after”, “before”, etc., “immediately” or “directly” is not used. It may include a case where it is not more continuous.

Although the first, second, etc. are used to describe various components, 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 invention.

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

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

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 independently implemented with respect to each other or may be implemented together in a related relationship. may be

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

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

In addition, in some examples, an LCM or OLED module composed of a display panel and a driving unit may be expressed as a “display device”, and an electronic device as a finished product including the LCM and OLED module may be divided and expressed as a “set device”. For example, the display device includes 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, and the set device is electrically connected to the source PCB to control the entire set device. It may be a concept that further includes a set PCB that is a set control unit to control.

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

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

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

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

In the present specification, a display panel including a sound generator 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 vibration of the display panel is 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.

Hereinafter, an embodiment of the present specification will be described with reference to the accompanying drawings and embodiments.

1A is a view showing a display device including a sound generating device according to an embodiment of the present specification.

1A illustrates a rear surface of a display device. Referring to FIG. 1A , the display device 10 includes a display panel 100 displaying an image, and a sound generating device disposed on the rear surface of the display panel 100 and generating sound by vibrating the display panel 100 ( 200) may be included. For example, the sound generating device 200 may directly vibrate the display panel 100 to generate a sound in front of the display panel 100 .

The display panel 100 is to display an image, and may be implemented as any type of display panel such as a liquid crystal display panel, an organic light emitting diode (OLED) display panel, and an electroluminescent display panel. have. The display panel 100 may vibrate according to the vibration of the sound generator 200 to output a sound.

According to an example, the display panel 100 is a top emission type, a bottom emission type, or a dual emission type according to the structure of the pixel array layer including the anode electrode, the cathode electrode, and the organic compound layer. The image may be displayed in the form of a dual emission method or the like. In the top emission method, visible light generated from the pixel array layer is emitted to the front of the base substrate to display an image, and in the bottom emission method, visible light generated from the pixel array layer is emitted to the rear of the base substrate to display an image. can do.

The sound generator 200 may generate sound by using the display panel 100 as a diaphragm. The sound generator may be expressed as an actuator, an exciter, or a transducer, but is not limited thereto, and may be a sound device that outputs a sound according to an electrical signal.

FIG. 1B is a cross-sectional view taken along line II′ of FIG. 1A .

Referring to FIG. 1B , the display device may include a sound generating device 200 and a support member 300 .

The supporting member 300 may support at least one of a rear surface and a side surface of the display panel 100 . In addition, the sound generating device 200 may be fixed to the support member 300 .

In the present specification, the support member 300 may be, for example, a cover bottom. Alternatively, a middle cabinet that surrounds the side surface of the display panel 100 and is coupled to the cover bottom and accommodates one edge of the display panel 100 to support the display panel 100 may be further included. For example, the middle cabinet may have a “┤” shape (or a T-shape with an angle of 90 degrees) in cross section. The support member 300 may include a cover bottom, or a cover bottom and a middle cabinet, but is not limited thereto, and may include a structure capable of supporting the rear or side surfaces of the display panel 100 .

In addition, the support member 300 may be a plate-shaped member formed over the rear surface or the whole of the display panel 100 . For example, the support member 300 covers the entire rear surface of the display panel 100 to be spaced apart, and may have a flat plate shape made of a glass material, a metal material, or a plastic material. Here, the edge or sharp corner portion of the support member 300 may have a slope shape or a curved shape by a chamfering process or a corner rounding process. According to an example, the support member 300 made of a glass material may be sapphire glass. For example, the metal support member 300 may be made of any one of aluminum, an aluminum alloy, a magnesium alloy, and an alloy of iron and nickel. For another example, the support member 300 may have a laminated structure of a metal plate and a glass plate facing the rear surface of the display panel 100 while having a relatively thinner thickness than the glass plate. In this case, the display device ( The back side of 10) may be used as a mirror surface by a metal plate.

In addition, the support member 300 may include a through hole into which the sound generating device 200 is inserted. For example, the through hole may be perforated to have a circular or polygonal shape in a predetermined region of the support member 300 along the thickness direction of the support member 300 in order to insert the sound generating device 200 .

And, in the present specification, the support member 300 includes a cover bottom, a plate bottom, a back cover, a base frame, a metal frame, and a metal chassis. Chassis), chassis base, m-chassis, etc. can be used as other expressions. Accordingly, as a support for supporting the display panel 100 , any type of frame or plate-like structure disposed on the rear surface of the display device may be included.

In addition, the adhesive member 400 may be disposed on the edge of the display panel 100 and the support member 300 , and may adhere the display panel 100 and the support member 300 . The adhesive member 400 may be disposed between the rear surface of the display panel 100 and the upper surface of the support member 300 . and. The adhesive member 400 may be a double-sided tape, a single-sided tape, an adhesive, or a bond, but is not limited thereto.

2A and 2B are cross-sectional views of a sound generating device according to an embodiment of the present specification.

The sound generator may be classified into a first structure in which the magnet is disposed outside the coil, and a second structure in which the magnet is disposed inside the coil. The first structure may be expressed as a dynamic type or an external magnetic type. In addition, the second structure may be expressed as a micro type or an internal magnetic type.

FIG. 2A illustrates a first structure, and FIG. 2B illustrates a second structure.

Referring to FIG. 2A , the sound generating device 200 includes plates 210 and 210 ′, a magnet 220 on the plate, a center pole 230 on the plate, and a bobbin disposed around the center pole 230 . 250 and a coil 260 wound around the bobbin 250 may be included.

For example, the magnet 220 may be provided on the first plate 210 , and the second plate 210 ′ may be provided on the magnet 220 . The first plate 210 and the second plate 210 ′ may fix the sound generating device 200 to the support member 300 while supporting the magnet 220 . Accordingly, the first plate 210 may be fixed to the support hole formed in the support member 300 , and the magnet 220 positioned between the first plate 210 and the second plate 210 ′ may be fixedly supported. can

At least one of the first plate 210 and the second plate 210 ′ may be made of a magnetic material such as iron (Fe). The plate is not limited to this term, and may be expressed in other terms such as a yoke.

The magnet 220 may use a sintered magnet such as barium ferrite, and the material is ferric trioxide (Fe ₂ O ₃ ), barium carbonate (BaCO ₃ ), neodymium (Nd) magnet, strontium with improved magnetic force component. An alloy cast magnet such as ferrite (Fe ₁₂ O ₁₉ Sr), aluminum (Al), nickel (Ni), or cobalt (Co) may be used. As another example, the neodymium magnet may be neodymium-iron-boron (Nd-Fe-B). However, the present invention is not limited thereto.

The frame 240 may be disposed on the second plate 210 ′ along the outer edge of the first plate 210 . The center pole 230 may be disposed in a central region of the first plate 210 . The center pole 230 and the first plate 210 may be integrally formed. The center pole 230 may be referred to as pole pieces. As another example, pole pieces may be further disposed on the center pole 230 .

The bobbin 250 may be disposed to wrap around the center pole 230 . The coil 260 is wound on the lower outer region of the bobbin 250 , for example, on the lower outer surface, and a current for generating a sound is applied to the coil 260 . The bobbin 250 may be an annular structure formed of paper or an aluminum sheet. The coil 260 may be wound around a predetermined area under the bobbin 250 . The bobbin 250 and the coil 260 may be combined to express a voice coil. The damper 270 may be disposed between the frame 240 and an upper portion of the bobbin 250 . A damper may also be expressed in other terms, such as an edge.

2B is a diagram illustrating a second structure in which a magnet is disposed inside a coil.

Referring to FIG. 2B , the second structure of the sound generating display device 200 ′ includes a magnet 220 on the first plate 210 , a center pole 230 on the magnet 220 , and a magnet 220 . and a bobbin 250 disposed around the center pole 230 , and a coil 260 wound around the bobbin 250 .

For example, the first plate 210 may be fixed to a support hole formed in the support member 300 . The magnet 220 may be disposed on the first plate 210 , and the center pole 230 may be disposed on the magnet 220 . The center pole 230 may be referred to as pole pieces. Alternatively, pole pieces may be further disposed on the center pole 230 . The bobbin 250 is disposed to surround the magnet 220 and the center pole 230 , and the coil 260 may be wound around the bobbin 250 .

The second plate 210 ′ may be disposed around the outer periphery of the first plate 210 , and the frame 240 may be disposed outside the second plate 210 ′. The damper 270 may be disposed between the frame 240 and the bobbin.

Compared to the first structure in which the magnet is disposed on the outside, the second structure, which is magnetic resistant, has an advantage in that leakage magnetic flux is small and the overall size can be reduced. The sound generating device used in the display device according to the embodiment of the present specification is not limited to the structure shown in FIGS. 2A and 2B . Another type of sound generating device capable of generating sound by vibrating the display panel or directly vibrating the display panel may be used.

3A and 3B are views for explaining the content of generating sound of the sound generating device according to the first structure of the embodiment of the present specification.

3A shows a state in which a current is applied.

The center pole 230 connected to the lower surface of the magnet 220 becomes an N (north) pole, and the second plate 210 ′ connected to the upper surface of the magnet 220 becomes an S (south) pole, so that the external magnetic field is a coil (260) can occur around.

In this state, when a current for sound generation is applied to the coil 260 , an applied magnetic field is generated around the coil 260 , and a force for moving the bobbin 250 upward is generated by the applied magnetic field and the external magnetic field. For example, when a current is applied to the coil 260, a magnetic field is formed around the coil 260, and since an external magnetic field is formed by the magnet 220, the entire bobbin 250 is a center pole according to Fleming's left hand rule. It can move upward while being guided by 230 .

Accordingly, since one surface of the bobbin 250 is in contact with the rear surface of the display panel 100 , the bobbin 250 moves the display panel 100 in an upward direction (indicated by an arrow) depending on whether or not current is applied by the coil 260 . vibration, and a sound wave (or sound) is generated by this vibration. In this state, when the current application is stopped or a current in the opposite direction is applied, as shown in FIG. 3B, a force is generated to move the bobbin 250 downward according to a similar principle described in FIG. 3A, and the display panel 100 ) oscillates in the downward direction (indicated by an arrow).

The damper 270 may be disposed between the frame 240 and a partial area on the upper side of the bobbin 250 . The damper 270 has a corrugated structure, for example, has elasticity, and can control vertical vibration of the bobbin 250 by contraction and relaxation according to the vertical motion of the bobbin 250 . For example, since the damper 270 is respectively connected to the bobbin 250 and the frame 240 , the vertical vibration of the bobbin 250 may be controlled by the restoring force of the damper 270 . For example, when the bobbin 250 vibrates above a predetermined height or vibrates below a predetermined height, the bobbin 250 may return to its original position by the restoring force of the damper 270 . Accordingly, the display panel 100 may vibrate up and down according to the direction and magnitude of the current applied to the coil 260 , and sound waves may be generated by the vibration.

4A and 4B are views for explaining the content of generating sound of the sound generating device according to the second structure of the embodiment of the present specification.

4A shows a state in which a current is applied. The second plate 210 ′ becomes the S pole, and the center pole 230 connected to the upper surface of the magnet 220 becomes the N pole, and an external magnetic field is formed around the coil 260 . The S pole and the N pole may be compatible, and the sound generating device may be operated in the same manner by changing the winding direction of the coil 260 . In this state, when a current for sound generation is applied to the coil 260 , an applied magnetic field is generated around the coil 260 , and a force to move the bobbin 250 upward is generated by the applied magnetic field and the external magnetic field. For example, when a current is applied to the coil 260, a magnetic field is formed around the coil 260, and since an external magnetic field is formed by the magnet 220, the entire bobbin 250 is a center pole according to Fleming's left hand rule. It can move upward while being guided by 230 .

Therefore, since one surface of the bobbin 250 is in contact with the rear surface of the display panel 100, the display panel 100 is vibrated in an upward direction (indicated by an arrow) according to the application or non-applied current of the coil 260, A sound wave (or sound) is generated by this vibration. In this state, when the current application is stopped or a current in the opposite direction is applied, as shown in FIG. 4B, a force is generated to move the bobbin 250 downward according to a similar principle described in FIG. 4A, and the display panel 100 ) oscillates in the downward direction (indicated by an arrow).

The damper 270 may be disposed between the frame 240 and a portion of the upper portion of the bobbin 250 . The damper 270 has a corrugated structure, for example, has elasticity, and can adjust the vertical vibration of the bobbin 250 by contraction and relaxation according to the vertical movement of the bobbin 250 . For example, since the damper 270 is respectively connected to the bobbin 250 and the frame 240 , the vertical vibration of the bobbin 250 may be controlled by the restoring force of the damper 270 . For example, when the bobbin 250 vibrates above a predetermined height or vibrates below a predetermined height, the bobbin 250 may return to its original position by the restoring force of the damper 270 . Accordingly, the display panel 100 may vibrate up and down according to the direction and magnitude of the current applied to the coil 260 , and sound waves may be generated by the vibration.

5 is a view showing a coupling structure of a sound generating device and a support member according to an embodiment of the present specification.

In the embodiment of the present specification, both of the sound generating device according to the first structure or the second structure may be applied. Hereinafter, the second structure will be described as an example.

Referring to FIG. 5 , the sound generating device 200 may include an enlarged diameter part 614 . The enlarged diameter portion 614 may be integrally formed with the first plate 210 . One side of the first plate 210 may have a protrusion larger than a diameter of the other portion of the first plate 210 . The protrusion region having an increased diameter may be expressed as an enlarged diameter portion 614 . The enlarged diameter 614 may have an annular shape. An extension part 612 for fixing the sound generating device 200 may be formed in a part of the enlarged diameter part 614 .

The extension 612 may include a screw 320 and a nut 330 . Using the nut 330 fixed to the support member 300 , the sound generating device 200 may be coupled to the support member 300 by means of a screw 320 . The nut 330 may be, for example, a self-clinching nut. One example of the self-clinching nut may be a PEM® nut, but the embodiment is not limited thereto. Accordingly, the sound generating device 200 may be accommodated in the support hole 310 of the support member 300 .

When a self-clinching nut is used, the vibration generated from the sound generating device 200 may be partially absorbed by the self-clinching nut, which is the nut 330 , so the vibration transmitted to the support member 300 . can reduce

Referring to FIG. 5 , the first plate 220 of the sound generating device 200 is fixed to the support member 300 , and the bobbin 250 may vibrate up and down (indicated by V1 ). In addition, since the first plate 220 and the support member 300 are fixed with the screw 320 , the stiffness of the sound generating device 200 may be increased. Due to this, even if the resonance frequency of the sound generating device 200 is lowered, since the first plate 220 and the support member 300 are fixed, it was recognized that the low frequency range output from the sound generating device 200 cannot be lowered. . Accordingly, the inventor invented a sound generating device of a new structure capable of lowering the resonance frequency of the sound generating device and improving the low frequency range through various experiments. This will be described with reference to FIGS. 6 and 7 .

6A and 6B are views illustrating a sound generating device according to another embodiment of the present specification.

In the embodiment of the present specification, both of the sound generating device according to the first structure or the second structure may be applied. Hereinafter, the second structure will be described as an example.

6A is a cross-sectional view of a sound generating apparatus according to another embodiment of the present specification, and FIG. 6B is a rear view of the sound generating apparatus according to another embodiment of the present specification.

Referring to FIG. 6A , the sound generating device 1300 according to the embodiment of the present specification includes a magnet 1220 on a plate 1210 , a center pole 1230 on the magnet 1220 , a magnet 1220 and It may include a bobbin 1250 disposed around the center pole 1230 , and a coil 1260 wound around the bobbin 1250 .

For example, the magnet 1220 may be disposed on the plate 1210 , and the center pole 1230 may be disposed on the magnet 1220 . The center pole 1230 may be referred to as pole pieces. Alternatively, pole pieces may be further disposed on the center pole 1230 . The bobbin 1250 is disposed to surround the magnet 1220 and the center pole 1230 , and the coil 1260 may be wound around the bobbin 1250 . The frame 240 may be disposed outside the plate 1210 . The damper 1270 may be disposed between the frame 1240 and the bobbin 1250 . The damper 1270 may be expressed by other terms such as an edge, and the term is not limited thereto. The plate 1210 may be expressed by other terms such as a yoke, and the term is not limited thereto.

The display panel 100 may be attached to the bobbin 1250 of the sound generating device 1300 via the first adhesive member. The first adhesive member may be a double-sided tape, a single-sided tape, an adhesive, and/or a bond, but is not limited thereto. The first adhesive member may be formed at a portion where the bobbin 1250 of the sound generating device 1300 is attached to the display panel 100 , but is not limited thereto. The first adhesive member may be formed on the entire rear surface of the display panel 100 . For example, the first adhesive member may be formed on the entire surface between the display panel 100 and the sound generating device 1300 .

In order to reduce or reduce heat generated when the sound generating device 1300 vibrates, a heat dissipation member may be further disposed on the rear surface of the display panel 100 . For example, the heat dissipation member may be disposed on the rear surface of the display panel 100 via the second adhesive member. For example, the heat dissipation member may be disposed between the first adhesive member and the rear surface of the display panel 100 . The heat dissipation member may have a size larger than the size of the sound generating device 1300 or may be configured to cover the sound generating device 1300, and may have a polygonal plate shape or a circular plate shape having a certain thickness, and is limited thereto not. For example, the heat dissipation member may be a heat dissipation sheet or a heat dissipation tape made of a metal material having high thermal conductivity, such as aluminum (Al), copper (Cu) or silver (Ag) and alloys thereof, but is not limited thereto. Accordingly, since the heat dissipation member is configured, it is possible to reduce the effect on the image quality of the display panel due to heat generated when the sound generating device vibrates.

As described in FIG. 5 , since the support member and the plate are connected with screws, it was recognized that the plate should have a structure in which the support member and the plate are not fixed in order to solve the problem of increasing the rigidity of the sound generating device. In order for the sound generating device to be fixed to the support member, various experiments were conducted on a method of lowering the rigidity of the plate without being fixed to the support member. Through various experiments, it was recognized that the plate should not be fixed by the support member and screws, and that the sound generating device should have a structure that can be fixed to the support member. For example, the plate may be disposed to be spaced apart from the support member, and a structure may be formed between the support member and the sound generator so that the sound generator is fixed to the support member. 6A and 6B, the plate 1210 and the support member 300 of the sound generating device 1300 may be disposed to be spaced apart, and the structure disposed between the plate 1210 and the support member 300 is , for example, the connection unit 1280 . The connection part 1280 may be made of metal or plastic, but is not limited thereto. For example, the connection unit 1280 may give elasticity to the plate 1210 to lower rigidity, and may lower the resonance frequency to improve the sound of the low-pitched sound of the sound generating device 1300 . This will be described with reference to Equation 1 below. The resonance frequency f ₀ of the vibration generated by the sound generating device 1300 may be determined by Equation 1 below.

[Equation 1]

In Equation 1, k may be the stiffness of the object, and m may be the mass of the object. For example, according to Equation 1, the sound generating device 1300 can lower the resonance frequency by reducing the stiffness (k) of the object or increasing the mass (m), thereby improving the sound in the low range. . The connection unit 1280 may lower the rigidity of the sound generating device 1300 to lower the resonance frequency, so that the sound in the low-pitched range of the sound generating device 1300 may be improved. As another example, the sound generator 1300 may lower the resonance frequency by reducing the mass (m) of the object and at the same time reducing the stiffness (k) of the object more than the increase rate of the mass (m).

A coupling member 1310 may be disposed under the support member 300 . The coupling member 1310 may include a screw 1320 and a nut 1330 . The nut 1330 may be, for example, a self-clinching nut. One example of the self-clinching nut may be a PEM® nut, but the embodiment is not limited thereto. The nut 1330 may be fastened to the support member 300 in a press-fitting manner, but is not limited thereto. The sound generating device 1300 and the support member 300 may be coupled by a coupling member 1310 . The connection part 1280 may be connected to the screw 1320 .

Referring to FIG. 6A , the connection part 1280 may be disposed between the coupling member 1310 and the frame 1240 . For example, the connection part 1280 may be disposed between the coupling member 1310 and the lower portion of the frame 1240 . For example, the connection part 1280 may extend from the outer periphery of the lower portion of the frame 1240 to the screw 1320 . Accordingly, the connection part 1280 can stably support the plate 1210 surrounded by the frame 1240 , and give elasticity to the plate 1210 to lower the rigidity of the sound generating device 1300 .

The frame 1240 may have a round shape, a square shape, and a square shape with rounded corners, but is not limited thereto. When the frame 1240 is a rectangle or a rectangle with rounded corners, the lower end of the frame 1240 may have a rectangle with four corners or a rectangle with rounded corners, and the connection part 1280 includes the screw 1320 and the frame 1240 . ) may be disposed between each of the corners. For example, the connection part 1280 may be disposed between each of the four corners of the frame 1240 and the screw 1320 . The connection part 1280 may be disposed on the periphery of the frame 1240 according to the shape of the frame 1240 , and the connection part 1280 disposed on the periphery of the frame 1240 may include screws 1320 in the frame 1240 . can be placed between them. For example, when the frame 1240 is a rectangle or a rectangle with rounded corners, the connection part 1280 may be disposed around the frame 1240 along the rectangle or the rectangle with rounded corners of the frame 1240, and the frame ( The connection part 1280 disposed around the 1240 may be disposed between the screws 1320 at each of the four corners of the frame 1240 . The connection part 1280 may be disposed on the outside of the frame 1240 according to the shape of the frame 1240 , and the connection part 1280 disposed on the outside of the frame 1240 may include screws 1320 in the frame 1240 . can be placed between them. For example, when the frame 1240 is a rectangle or a rectangle with rounded corners, the connection part 1280 may be disposed on the outside of the frame 1240 along the rectangle of the frame 1240 or a rectangle with rounded corners, and the frame ( The connection part 1280 disposed outside the 1240 may be disposed between the screws 1320 at each of the four corners of the frame 1240 . However, the present invention is not limited thereto, and the connection part 1280 may be disposed at a portion other than the edge of the frame 1240 . . For example, when the frame 1240 is a rectangle or a rectangle with rounded corners, the connection part 1280 may be disposed between the frame 1240 and the coupling member 1310 , and the connection part 1280 may be formed between the frame 1240 and the frame 1240 . Any position between the coupling members 1310 may be possible. For example, when the frame 1240 is circular, the connection part 1280 may be disposed between the frame 1240 and the coupling member 1310, and the connection part 1280 is the frame 1240 and the coupling member 1310. Any position in between may be possible. The connection part 1280 disposed between each of the four corners of the frame 1240 and the screw 1320 and the connection part 1280 disposed outside the frame 1240 may be integrally formed. For example, the connection part 1280 disposed between each of the four corners of the frame 1240 and the screw 1320 and the connection part 1280 disposed on the outside of the frame 1240 may be integrally formed through a laser process. have. The present invention is not limited thereto, and the connection part 1280 may be formed in the form of laser, etching, or punching using a mold. Therefore, by configuring a plurality of connection parts 1280, the support force for the frame 1240 can be mutually supplemented, and the plate 1210 surrounded by the frame 1240 is stably supported, so that the plate 1210 is elastic. to lower the rigidity of the sound generating device 1300 .

Referring to FIG. 6A , a partition 700 may be disposed between the support member 300 and the display panel 100 . The partition 700 may be an air gap or a space in which a sound is generated when the display panel 100 vibrates. Compared with FIG. 5 , the vibration of the sound generating device 1300 may cause the entire sound generating device 1300 to vibrate (indicated by V2), so that the sound output characteristics of the sound generating device 1300 can be further improved. have. For example, the sound generator 1300 is represented by a plate 1210 , a magnet 1220 , a center pole 1230 , a frame 1240 , a bobbin 1250 , a coil 1260 , and a damper 1270 . Since sound can be output by vibrating the panel, sound output characteristics can be further improved, and a display device having improved sound output characteristics of a low-pitched range can be provided.

7 is a diagram illustrating sound output characteristics according to an embodiment of the present specification.

In FIG. 7 , the dotted line indicates the sound output characteristics of the sound generating device of FIG. 5 , and the solid line shows the sound output characteristics of the sound generating device of FIG. 6 . And, the horizontal axis represents the frequency (Frequency, Hz), and the vertical axis represents the sound pressure level (SPL, dB).

Referring to FIG. 7 , it can be seen that the sound pressure is improved in the low-pitched region of 200 Hz or less in the sound generating device according to the exemplary embodiment of the present specification than in the case of the dotted line. For example, at a frequency of 100 Hz, the sound pressure of the dotted line is 60 dB, and since the sound pressure of the sound generating device according to the embodiment of the present specification is 75 dB, it can be seen that the sound pressure is improved by about 15 dB. Accordingly, it can be seen that in the sound generating apparatus according to the embodiment of the present specification, the sound pressure in the low-pitched range is improved. It can be seen that, in the sound generating device according to the embodiment of the present specification, the sound pressure is improved in the mid-range of 200 Hz to 3 kHz or less. The mid range may be 200Hz to 3kHz, the high range may be 3 kHz or more, and the low range may be 200Hz or less, but is not limited thereto.

8A to 8C are diagrams illustrating an embodiment of a sound generating device and a partition according to an embodiment of the present specification.

8A to 8C , the display panel 100 may include a first area L, a second area R, and a third area C. As shown in FIG. The first area L is the left area of the rear surface of the display panel 100 , the second area R is the right area of the rear surface of the display panel 100 , and the third area C is the display panel 100 . It may be the central area of the rear surface. The left area and the right area are interchangeable with each other, and for convenience, descriptions will be made with the contents shown in the drawings. At least one sound generator may be disposed in at least one of the first area L, the second area R, and the third area C. For example, the first sound generating device 1300 may be disposed in the first area L of the rear surface of the display panel 100 , and the second sound generating apparatus 1300 ′ may be disposed on the rear surface of the display panel 100 . may be disposed in the second region R of At least one sound generating device may include one of a circular shape and an elliptical shape, or may include a pair of sound generating devices. At least one sound generating device may generate sound by vibrating the display panel. For example, at least one sound generating device may directly vibrate the display panel to generate sound. For example, it is possible to generate a sound of a low, middle, high-pitched range, and output a stereo sound.

Referring to FIG. 8A , the first sound generating device 1300 and the second sound generating device 1300 ′ may be respectively disposed in the first region L and the second region R of the display panel. For example, the first sound generator 1300 is disposed in the first area L of the rear surface of the display panel 100 , and the second sound generator 1300 ′ is disposed on the rear surface of the display panel 100 . It is arranged in the second region R. And, as described with reference to FIGS. 6A and 6B , the first sound generating device 1300 and the second sound generating device 1300 ′ may be coupled to the support member 300 .

Accordingly, the first sound generating device 1300 is disposed in the first region L that is the left region of the rear surface of the display panel 100 to vibrate the left region of the display panel 100 , and the second sound generating device Reference numeral 1300 ′ is disposed in the second region R that is the right region of the rear surface of the display panel 100 to vibrate the right region of the display panel 100 . Each of the first and second sound generators 1300 and 1300 ′ may be independently driven by receiving different vibration signals. For example, the first sound generating device 1300 may generate a sound by using the left region of the display panel 100 as a diaphragm, and the second sound generating device 1300 ′ is the right side of the display panel 100 . Sound can be generated by using the area as a diaphragm. And, this description can be equally applied to FIGS. 8B to 11C.

In FIG. 8A , the first sound generating device 1300 and the second sound generating device 1300 ′ may be configured as a circular sound generating device. Since the circular sound generating device is the same as that described with reference to FIGS. 6A and 6B , a description thereof will be omitted. In FIG. 8B , the first sound generating device 1900 and the second sound generating device 1900 ′ may be configured as an elliptical sound generating device. For the elliptical sound generating device, the sound generating device described with reference to FIGS. 6A and 6B may be applied, and the bobbin may have an elliptical shape. When the oval-shaped sound generating device is applied, the sound output characteristics in the mid-range range can be further improved. As for the coupling structure between the first and second sound generators 1900 and 1900' and the support member, the contents described with reference to FIGS. 6A and 6B may be applied.

In FIG. 8C , the first sound generating device 1800 and the second sound generating device 1800 ′ may be configured as a pair of sound generating devices. As the pair of sound generating devices, the sound generating devices described with reference to FIGS. 6A and 6B may be applied. For example, the pair of sound generating devices may include two sound generating devices described with reference to FIGS. 6A and 6B , and the two sound generating devices may be disposed adjacent to each other. As for the coupling structure between the first and second sound generators 1800 and 1800' and the support member, the contents described with reference to FIGS. 6A and 6B may be applied.

The description of the partition and the pad will be described with reference to FIG. 8A as an example, and the description thereof may be equally applied to FIGS. 8B and 8C .

8A to 8C , the first partition 1700 may be disposed between the display panel and the support member 300 . For example, the first partition 1700 may be disposed between the rear surface of the display panel and the upper surface of the support member. The first partition 1700 may be disposed on the support member 300 . For example, the first partition 1700 may be disposed on an edge of the support member or an edge of the upper surface of the support member. The first partition 1700 may be disposed at an edge of the display panel. For example, the first partition 1700 may be disposed at an edge of the rear surface of the display panel. The first partition 1700 may be the entire area of the rear surface of the display panel or the support member. The first partition 1700 may be the entire area of the four sides of the rear surface of the display panel or the outside of the support member.

Referring to FIG. 8A , between the first sound generating device 1300 and the second sound generating device 1300 ′, at least two partitions, a second partition 1700 ′ and a third partition 1700 ″, are to be disposed. For example, a second partition 1700 ′ is disposed between the first region L and the third region C, and a third partition 1700 ′ is disposed between the second region R and the third region C. A partition 1700" may be disposed.

The first partition 1700 , the second partition 1700 ′, and the third partition 1700 ″ provide sound when the display panel 100 is vibrated by the first and second sound generators 1300 and 1300 ′. It can be an air gap or a space that generates sound An air gap or a space that generates or transmits sound can be called a partition A partition is called an enclosure or a baffle The first partition 1700, the second partition 1700', and the third partition 1700" may be formed in a sealed structure or may be formed in an unsealed structure. may be

Each of the first partition 1700 , the second partition 1700 ′, and the third partition 1700 ″ blocks the sound from leaking through each side of the display panel 100 , so that the first and second sounds Since the sound from the generators 1300 and 1300 ′ can be output only to the front of the display panel 100 , the sound output characteristic can be improved.

The first partition 1700 , the second partition 1700 ′, and the third partition 1700 ″ may be disposed between the display panel and the support member. For example, the first partition 1700 , the first partition 1700 , The second partition 1700 ′ and the third partition 1700 ″ may be disposed between the rear surface of the display panel and the upper surface of the support member. The first partition 1700, the second partition 1700', and the third partition 1700" may be disposed on the support member 300. The first partition 1700, the second partition 1700', and a third partition 1700 ″ may be disposed on the display panel 100 . 8A to 11C , the first partition 1700 , the second partition 1700 ′, and the third partition 1700 ″ are disposed on the support member 300 as an example.

The second partition 1700' and the third partition 1700" may separate left and right sounds generated by the first sound generating device 1300 and the second sound generating device 1300'. The second partition 1700 ') and the third partition 1700 ", since vibration of the display panel 100 is attenuated or absorbed at the center of the display panel 100 in a space or air gap that can be determined by the third partition 1700", the left It is possible to block the sound from the area from being transmitted to the space of the right area. Therefore, since the display device according to the embodiment of the present specification constitutes the second partition 1700' and the third partition 1700", it is possible to separate left and right sounds and to improve sound output characteristics. And, The first sound generating device 1300 and the second sound generating device 1300 ′ may output sounds of different low, middle, and high frequencies, and may output stereo sound by separating left and right sounds, and output a 2.1 channel sound. A display device having characteristics can be provided.

The first sound generating device 1300 is formed in the first region L, which is the left region, and the second sound generating device 1300′ is configured in the second region R, which is the right region, and the third region C is the central region. ) may not include a sound generator. Accordingly, it is possible to reduce sound quality deterioration due to interference in the left region and the right region. In addition, there is an effect that can further improve the acoustic characteristics of the mid-range range. In addition, the area of the third region C may be smaller than the area of the first region L and the area of the second region R. In this case, it is possible to improve the sound of the low-pitched range. In addition, the third region C may reduce deterioration of sound quality due to interference in the first region L and the second region R. Accordingly, it is possible to improve the sound in the low, middle, and high frequencies. In addition, the descriptions of the first partition 1700 , the second partition 1700 ′, and the third partition 1700 ″ may be equally applied to FIGS. 8B to 11C .

In FIGS. 8A to 11C , the first partition 1700 may be the adhesive member described with reference to FIG. 1 . An adhesive member for bonding the display panel and the support member may be further disposed between the display panel and the support member described with reference to FIG. 1 . For example, an adhesive member may be further disposed on an edge of the display panel or an edge of the support member.

8A to 11C show that the sound generating device is not located in the center of the left region that is the first region L or the right region that is the second region R of the display panel 100, but is biased toward the left region or the right region. shows what has been However, the present invention is not limited thereto, and the sound generating device may be disposed in the center of the left region that is the first region L or the right region that is the second region R of the display panel 100 . Alternatively, the sound generator may be asymmetrically disposed in the first area L and the second area R of the display panel. When the sound generating device is located in the left region or the right region of the display panel 100 rather than in the center of the left region, which is the first region (L), or in the center of the right region, which is the second region (R) of the display panel 100 , the stereo Acoustic properties may be further improved.

Between the first sound generating device 1300 and the second sound generating device 1300 ′, a partition including two or more partitions may be formed. For example, when realizing a mono sound that outputs the same sound in the left and right areas, the left and right areas of the display panel have the same vibration characteristics, so resonance or interference is maximized in a certain frequency band, which may cause a problem in that the sound pressure is reduced. have. Accordingly, the difference in the resonance frequencies of the mid- and high-pitched sounds generated by the first sound generating device 1300 in the first region L, which is the left region, and the second sound generating device 1300 ′, in the second region R, which is the right region. In order to reduce the effect of acoustic characteristics due to the result, it can be configured as a structure including two or more partitions. When three or more partitions are formed between the first sound generating device 1300 and the second sound generating device 1300', it is possible to prevent a decrease in sound pressure even if the sound interference in the left and right regions becomes severe, so that the sound It is possible to prevent a phenomenon in which output characteristics are recognized as discontinuous.

Accordingly, by configuring two or more partitions in the central region of the display panel, it is possible to reduce the influence of the acoustic characteristics due to the difference in the resonance frequencies of the mid- and high-pitched sounds in the left and right regions of the display panel. In addition, since left and right separation of sound is possible by configuring a partition between the two sound generating devices, stereo characteristics of sound can be improved. In addition, sounds of different low, middle, and high frequencies may be output by the two sound generating devices.

A substrate constituting the display panel 100 may be a glass substrate. In order to realize a display device having a thinner thickness, the thickness of the glass substrate may be reduced. For example, a display device can be implemented to be thinner by using a substrate having a thickness of a glass substrate reduced from 0.7 mm to 0.5 mm. As the thickness of the substrate becomes thinner, when the partition is implemented on the rear surface of the display panel or the upper surface of the support member, the display panel itself is not flat due to the partition when the display panel and the support member are attached, and the step in the display panel is not flat. A problem occurred. For example, there is a problem that the screen of the display panel is not flat and is visually recognized as uneven. Such a phenomenon may be referred to as a bumpy phenomenon or a wave phenomenon (hereinafter referred to as a “wave phenomenon”) of the display panel, and is not limited thereto. A case in which the partition is disposed on the support member will be described as an example, and a wave phenomenon may occur even when the partition is disposed on the rear surface of the display panel. Accordingly, in order to reduce the wave phenomenon, the first partition 1700 may be disposed along the shape of the display panel 100 . For example, the first partition 1700 may have a rectangular shape, but is not limited thereto and may be changed according to the shape of the display panel. In addition, when the display panel is a curved display panel including a curved shape, the first partition may have a curved shape or a curved shape. Accordingly, since the first partition 1700 is disposed along the shape of the display panel, pulling of the display panel 100 can be reduced when the display panel 100 is attached to the support member, and thus a wave phenomenon can be prevented. .

Sound waves generated by vibrating the display panel by the sound generating device may propagate radially from the center of the sound generating device. This sound wave can be called a progressive wave. The traveling wave is reflected from one side of the partition to form a reflected wave, and the reflected wave may travel in the opposite direction to the traveling wave. The reflected wave overlaps and interferes with the traveling wave to prevent it from proceeding, and a standing wave stagnant at a certain position may be formed. A sound pressure may be reduced by this standing wave, and the sound output characteristic may be reduced.

Since the first partition 1700 cannot control the peak or dip phenomenon caused by the standing wave, a structure for controlling the peak or dip phenomenon caused by the standing wave is configured in the first partition 1700. recognized that it should. Here, a peak is a phenomenon in which the sound pressure bounces at a specific frequency, and a dip is a phenomenon in which the occurrence of a characteristic frequency is suppressed and a low sound pressure is generated. Acoustic output characteristics of the display device may be deteriorated due to a peak or dip phenomenon. This structure should be configured to prevent the wave phenomenon and to easily control the peak or dip phenomenon by the standing wave. Accordingly, in order to reduce the peak and dip phenomena caused by the standing waves generated in the longitudinal direction of the first and second sound generating devices 1300 and 1300 ′, a pad may be configured in the first partition 1700 . have. Accordingly, it is possible to reduce the sound pressure reduction phenomenon due to the standing wave generated by the interference of the reflected wave and the traveling wave. In addition, the standing wave that causes the sound pressure reduction may occur a lot at a point where the magnitude of the traveling wave and the reflected wave is large. Accordingly, the pad may be disposed at a position where the sound wave arriving from the sound generating device is greatest. For example, a pad may be configured on one or more sides of the first partition 1700 . The pad may be formed on one or more sides to which the strongest sound wave arrives among the four sides of the first partition 1700 , and may be configured to face the first and second sound generators 1300 and 1300 ′. The partitions and pads disposed on the support member will be described with reference to FIGS. 8A to 11C , but the present disclosure is not limited thereto, and the same content may be applied to a case where the partitions and pads are disposed on the rear surface of the display panel.

The shape of the pad may be configured to prevent a wave phenomenon caused by pulling of the display panel 100 when the pad disposed on the support member is attached to the display panel 100 . Alternatively, when the pad disposed on the display panel 100 is attached to the support member, a wave phenomenon caused by pulling of the display panel 100 may be prevented. For example, it should be easy to control the peak or dip phenomenon caused by the standing wave of the sound generating device, and it should be implemented so that the wave phenomenon can be prevented. Through several experiments, the pad was implemented in the shape of a rectangle or a rectangle with a rounded end.

Referring to FIG. 8A , a pad may be configured on at least one side of the first partition 1700 in order to reduce a peak or dip phenomenon caused by a standing wave. For example, the first partition 1700 includes a first side and a second side perpendicular to the first side, and the first side has at least one first pad 811 and at least one seventh pad. 821 may be configured. At least one first pad 811 may be disposed in the first region C, and at least one seventh pad 821 may be disposed in the second region R. At least one first pad 811 and at least one seventh pad 821 may include at least one. The first side may be in a horizontal direction of the display panel 100 or the support member 300 , and the second side may be in a vertical direction of the display panel 100 or the support member 300 . The horizontal and vertical directions may be used interchangeably.

The at least one second pad 812 may be disposed to face the at least one first pad 811 . For example, the at least one second pad 812 may be disposed on a side facing the at least one first pad 811 . At least one second pad 812 may be disposed in the first area L. At least one second pad 812 may include at least one.

At least one eighth pad 822 may be disposed to face the at least one seventh pad 821 . For example, the at least one eighth pad 822 may be disposed on a side facing the at least one seventh pad 821 . At least one eighth pad 822 may be disposed in the second region R. At least one eighth pad 822 may include at least one.

A second pad 812 and an eighth pad 822 may be further configured on a side facing the first side of the first partition 1700 . The second pad 812 is disposed on a side opposite to the first side of the first partition 1700 in the first area L, and is disposed on the first side of the first partition 1700 in the second area R. An eighth pad 822 may be disposed on opposite sides. The second pad 812 may be configured to face the first pad 811 , and the eighth pad 822 may be configured to face the seventh pad 821 . At least one of the second pad 812 and the eighth pad 822 may be configured.

At least one first pad 811 and at least one second pad 812 may be configured to face the first sound generating device 1300 . At least one seventh pad 821 and at least one eighth pad 822 may be configured to face the second sound generator 1300 ′. For example, the first pad 811 and the second pad 812 are disposed to face the first sound generating device 1300 in the first region L, and the second sound generating device in the second region R A seventh pad 821 and an eighth pad 822 may be disposed to face the device 1300 ′. Accordingly, the pads 811, 812, 821, and 822 can reduce a peak or dip phenomenon caused by standing waves generated in the longitudinal direction of the first and second sound generators 1300 and 1300', and the vibration is transmitted to the left and right. Therefore, the sound output characteristics can be improved.

A third pad 813 , a fourth pad 814 , a ninth pad 823 , and a tenth pad 824 may be further configured on the second side of the first partition 1700 . One or more of the third pad 813 , the fourth pad 814 , the ninth pad 823 , and the tenth pad 824 may be formed on one or more sides of the first partition 1700 . The third pad 813 , the fourth pad 814 , the ninth pad 823 , and the tenth pad 924 may be disposed in at least one of the first region L and the second region R. can For example, the third pad 813 and the fourth pad 814 may be disposed in the first area L, and the ninth pad 823 and the tenth pad 824 may be disposed in the second area R. can be placed in For example, the third pad 813 and the fourth pad 814 may be symmetrically disposed with respect to the first sound generator 1300 , and the ninth pad 823 and the tenth pad 824 . may be symmetrically disposed with respect to the second sound generating device 1300'.

When the pad is made of the same material as the first partition 1700 , a wave phenomenon may occur at the position where the pad is disposed. In this case, when the adhesive force between the first partition and the pad is the same, the display panel is further pulled from the position where the pad is disposed, so that a wave phenomenon may occur. For example, the pad may be made of a material that can reduce the pulling of the display panel 100 when the display panel 100 and the support member 300 are attached to each other. The pad positioned inside the first partition 1700 may be made of a material capable of reducing pulling when in contact with the display panel 100 . When the first partition 1700 is made of a material different from that of the first partition 1700 , the wave phenomenon may be reduced.

Accordingly, the at least one first pad 811 may be made of a material different from that of the first partition 1700 . The first partition 1700 may be formed of a double-sided tape. In the case of a double-sided tape, compared to a single-sided tape, it is disadvantageous to the wave phenomenon, but the adhesion between the display panel and the support member may be improved, and the sound quality may be improved. The at least one first pad 811 may be made of a material different from that of at least one of the first partition 1700 , the second partition 1700 ′, and the third partition 1700 ″. The pad 811 or the at least one second pad 812 may be made of a material different from that of the first partition 1700. The at least one first pad 811 or the at least one second pad 812 may include: At least one of the first partition 1700 , the second partition 1700 ′, and the third partition 1700 ″ may be made of a different material. The at least one second pad 812 may be made of the same material as the at least one first pad 811 . The at least one third pad 813 or the at least one fourth pad 814 may be made of a material different from that of the first partition 1700 . The at least one third pad 813 or the at least one fourth pad 814 is made of a material different from that of at least one of the first partition 1700, the second partition 1700', and the third partition 1700". The at least one third pad 813 or the at least one fourth pad 814 may be made of the same material as the at least one first pad 811 .

One of the second partition 1700' and the third partition 1700" may be made of the same material as the first partition 1700. For example, it may be made of double-sided tape or a double-sided foam pad. The tape or double-sided foam pad may be made of a foam material capable of absorbing an impact when it comes into contact with the display panel 100. If it is not made of a foam material, an undesired abnormal sound is generated due to contact with the display panel 100. For example, it may be made of polyurethane, polyolefin, and polyethylene, but is not limited thereto. The second partition 1700', and the third partition 1700 ″ may be made of the same material as that of the first partition 1700 . When the display panel 100 and the support member 300 are attached to each other, when the display panel 100 and the support member 300 are attached, adhesive strength can be improved.

At least one seventh pad 821 or at least one eighth pad 822 may be formed of a material different from that of the first partition 1700 . The at least one seventh pad 821 or the at least one eighth pad 822 is made of a material different from that of at least one of the first partition 1700, the second partition 1700', and the third partition 1700". The at least one seventh pad 821 or the at least one eighth pad 822 may be made of the same material as the at least one first pad 811. At least one eighth pad ( The 822 may be made of the same material as the at least one seventh pad 821 .

At least one ninth pad 823 or at least one tenth pad 824 may be made of a material different from that of the first partition 1700 . The at least one ninth pad 823 or the at least one tenth pad 824 is made of a material different from that of at least one of the first partition 1700, the second partition 1700', and the third partition 1700". The at least one ninth pad 823 or the at least one tenth pad 824 may be made of the same material as the at least one first pad 811. At least one ninth pad ( 823 ) or the at least one tenth pad 824 may be made of the same material as the at least one seventh pad 821 .

The first to fourth pads 811 , 812 , 813 , and 814 and the seventh to tenth pads 821 , 822 , 823 , and 824 may be formed of a material different from that of the first partition 1700 . The first to fourth pads 811 , 812 , 813 , and 814 and the seventh to tenth pads 821 , 822 , 823 , 824 include the second partition 1700 ′ or the third partition 1700 ″; It may be made of different materials, for example, the first to fourth pads 811, 812, 813, and 814 and the seventh to tenth pads 821, 822, 823, and 824 are made of single-sided tape. The single-sided tape may be made of a foam material capable of absorbing an impact when it comes into contact with the display panel 100. If it is not made of a foam material, it is not desired due to contact with the display panel 100. The single-sided tape may be made of, for example, polyurethane, polyolefin, and polyethylene, but is not limited thereto. When the first to fourth pads 811, 812, 813, and 814 and the seventh to tenth pads 821, 822, 823, and 824 are made of different materials, they may be the same material and have different adhesive strength. Alternatively, different materials and different adhesive strengths may be used, but the present invention is not limited thereto. When the seventh to tenth pads 821 , 822 , 823 , and 824 are attached to the display panel 100 and the support member 300 , the pull of the display panel 100 can be reduced, so that the wave phenomenon can be prevented. have.

Accordingly, by configuring one or more pads on at least one side of the partition and configuring the partitions and pads differently from each other, the wave phenomenon can be reduced and the sound output characteristics can be improved.

9A to 9C are diagrams illustrating another embodiment of a sound generating device and a partition according to an embodiment of the present specification.

In FIGS. 9A to 9C , the same content as that described with reference to FIGS. 8A to 8C may be omitted and briefly described. For example, the description of the sound generating device and the pad may be omitted or briefly described. The description of the partition and the pad will be described with reference to FIG. 9A as an example, and the description thereof may be equally applied to FIGS. 9B and 9C .

9A to 9C , in order to reduce a peak or dip phenomenon due to standing waves generated in the longitudinal direction of the first and second sound generators, a pad may be configured on at least one side of the first partition 1700 . have. For example, the first partition 1700 includes a first side and a second side perpendicular to the first side, and a first pad 811 and a seventh pad 821 are formed on the first side. can A second pad 812 and an eighth pad 822 may be further configured on a side opposite to the first side of the first partition 1700 . A third pad 813 , a fourth pad 814 , a ninth pad 823 , and a tenth pad 824 may be configured on the second side of the first partition 1700 . The descriptions of the first to fourth pads 811 , 812 , 813 , and 814 and the seventh to tenth pads 821 , 822 , 823 , and 824 are the same as those described with reference to FIGS. 8A to 8C , so detailed descriptions are provided here. may be omitted or briefly explained.

9A, at least one fifth pad 815, a sixth pad 816, an eleventh pad 825, and a twelfth pad ( 826) may be further configured. For example, the fifth pad 815 and the sixth pad 816 are disposed on sides opposite to the second side of the first partition 1700 in the first area L, and the second partition 1700'. A fifth pad 815 and a sixth pad 816 may be disposed on one side of the . For example, the eleventh pad 825 and the twelfth pad 826 are disposed on sides opposite to the second side of the first partition 1700 in the second region R, and the third partition 1700 ″). An eleventh pad 825 and a twelfth pad 826 may be disposed on one side of the . The fifth pad 815 and the sixth pad 816 include the third pad 813 and the fourth pad 814 ) may be configured to face.For example, the fifth pad 815 and the sixth pad 816 may be symmetrically disposed with respect to the first sound generating device 1300. The eleventh pad ( 825 and the twelfth pad 826 may be configured to face the ninth pad 823 and the tenth pad 824. For example, the eleventh pad 925 and the twelfth pad 926 may be 2 It may be arranged symmetrically with respect to the sound generating device 1300'.

At least one first pad 811 may be made of a material different from that of the first partition 1700 . The at least one first pad 811 may be made of a material different from that of at least one of the first partition 1700 , the second partition 1700 ′, and the third partition 1700 ″. The pad 811 or the at least one second pad 812 may be made of a material different from that of the first partition 1700. The at least one first pad 811 or the at least one second pad 812 may include: At least one of the first partition 1700 , the second partition 1700 ′, and the third partition 1700 ″ may be made of a different material. The at least one second pad 812 may be made of the same material as the at least one first pad 811 .

The at least one third pad 813 or the at least one fourth pad 814 may be made of a material different from that of the first partition 1700 . The at least one third pad 813 or the at least one fourth pad 814 is made of a material different from that of at least one of the first partition 1700, the second partition 1700', and the third partition 1700". The at least one third pad 813 or the at least one fourth pad 814 may be made of the same material as the at least one first pad 811. At least one fifth pad ( 815) or the at least one fifth pad 816 may be made of a material different from that of the first partition 1700. The at least one fifth pad 815 or the at least one sixth pad 816 may be formed of a first At least one of the partition 1700 , the second partition 1700 ′, and the third partition 1700 ″ may be made of a different material. The at least one fifth pad 815 or the at least one sixth pad 816 may be made of the same material as the at least one first pad 811 .

At least one seventh pad 821 or at least one eighth pad 822 may be formed of a material different from that of the first partition 1700 . The at least one seventh pad 821 or the at least one eighth pad 822 is made of a material different from that of at least one of the first partition 1700, the second partition 1700', and the third partition 1700". The at least one seventh pad 821 or the at least one eighth pad 822 may be made of the same material as the at least one first pad 811. At least one eighth pad ( The at least one seventh pad 822 may be made of the same material as the at least one seventh pad 821. The at least one ninth pad 823 or the at least one tenth pad 824 may be made of a material different from that of the first partition 1700. At least one ninth pad 823 or at least one tenth pad 824 may be selected from among the first partition 1700 , the second partition 1700 ′, and the third partition 1700 ″. It may consist of at least one and a different material. The at least one ninth pad 823 or the at least one tenth pad 824 may be made of the same material as the at least one first pad 811 . The at least one ninth pad 823 or the at least one tenth pad 824 may be made of the same material as the at least one seventh pad 821 . The at least one eleventh pad 825 or the at least one twelfth pad 826 may be made of a material different from that of the first partition 1700 . The at least one eleventh pad 825 or the at least one twelfth pad 826 is made of a material different from that of at least one of the first partition 1700, the second partition 1700', and the third partition 1700". The at least one eleventh pad 825 or the at least one twelfth pad 826 may be made of the same material as the at least one first pad 811. At least one eleventh pad ( 825 ) or the at least one twelfth pad 826 may be made of the same material as the at least one seventh pad 821 .

The first to sixth pads 811 , 812 , 813 , 814 , 815 , 816 and seventh to twelfth pads 821 , 822 , 823 , 824 , 825 , 826 are different from the first partition 1700 . It can be made of materials. The first to sixth pads 811 , 812 , 813 , 814 , 815 , and 816 and seventh to twelfth pads 821 , 822 , 823 , 824 , 825 , 826 are formed in the second partition 1700 ′ or It may be made of a material different from that of the third partition 1700″. For example, the first to sixth pads 811, 812, 813, 814, 815, 816 and seventh to twelfth pads 821 may be used. , 822 , 823 , 824 , 825 , and 826 may be formed of a single-sided tape, and the single-sided tape may be made of a foam material capable of absorbing an impact upon contact with the display panel 100. Foam material If this is not the case, an unwanted abnormal sound may appear due to contact with the display panel 100. The single-sided tape may be made of, for example, polyurethane, polyolefin, and polyethylene. The first partition 1700, the first to sixth pads 811, 812, 813, 814, 815, and 816, and the seventh to twelfth pads 821, 822, 823, When 824, 825, and 826) are made of different materials, the same material and different adhesive strength may be used, or different materials and different adhesive strength materials may be used, but the present invention is not limited thereto. first to sixth pads 811, 812, 813, 814, 815, 816, and first partition 1700 and third partition 1700" in first partition 1700 and second partition 1700' ) in the seventh to twelfth pads 821 , 822 , 823 , 824 , 825 , and 826 may reduce the pulling of the display panel 100 when the display panel 100 and the support member 300 are attached to each other. , the wave phenomenon can be prevented.

The fifth pad 815 , the sixth pad 816 , the eleventh pad 825 , and the twelfth pad 826 can further reduce the peak or dip phenomenon caused by the standing wave caused by the interference of the reflected wave and the traveling wave, , it is possible to further prevent deterioration of sound quality due to standing waves or reflected waves. Accordingly, by configuring the partitions and pads differently from each other, the wave phenomenon can be reduced, and the peak and dip phenomena caused by the standing wave can be further reduced by the pad, so that the sound output characteristics can be further improved.

10A to 10C are diagrams illustrating another embodiment of a sound generating device and a partition according to an embodiment of the present specification.

10A to 10C may omit and briefly describe the same content as that described in FIGS. 8A to 8C . For example, the description of the sound generating device and the pad may be omitted or briefly described. The description of the partition, the pad, and the member will be described with reference to FIG. 10A as an example, and the description thereof may be equally applied to FIGS. 10B and 10C .

10A to 10C , in order to reduce a peak or dip phenomenon caused by standing waves generated in the longitudinal direction of the first and second sound generating devices, a pad may be configured on at least one side of the first partition 1700 . can For example, the first partition 1700 includes a first side and a second side perpendicular to the first side, and a first pad 811 and a seventh pad 821 are formed on the first side. can A second pad 812 and an eighth pad 822 may be further configured on a side facing the first side of the first partition 1700 . A third pad 813 , a fourth pad 814 , a ninth pad 823 , and a tenth pad 824 may be configured on the second side of the first partition 1700 . The descriptions of the first to fourth pads 811 , 812 , 813 , and 814 and the seventh to tenth pads 821 , 822 , 823 , and 824 are the same as those described with reference to FIGS. 8A to 8C , and thus detailed descriptions are provided here. may be omitted or briefly explained.

Referring to FIG. 10A , at least one first member 911 and at least one second member 912 may be further disposed on one or more sides of the second partition 1700 ′. At least one third member 913 and at least one fourth member 914 may be further disposed on one or more sides of the third partition 1700 ″. At least one first member 911 and at least one The second member 912 may be disposed in the third region C, and may be disposed between the third pad 813 and the fourth pad 814. At least one third member 913 and The at least one fourth member 914 may be disposed in the third region C, and may be disposed between the ninth pad 823 and the tenth pad 824. The first member 911 and the first member 914 The second member 912 may be disposed in a horizontal direction of the display panel 100 or the support member 300. The third member 913 and the fourth member 914 may include the display panel 100 or the support member 300. ) The first member 911 and the second member 912 prevent the vibration generated by the first sound generating device 1300 from passing through the second partition 1700 ′. The third member 913 and the fourth member 914 may prevent the vibration generated by the second sound generating device 1300 ′ from passing through the third partition 1700 ″. . Accordingly, the first member 911 to the fourth member 914 may cause waves or vibrations between the second partition 1700 ′ and the third partition 1700 ″ to be generated in the first region L and/or the second region. Since it is possible to control what is transmitted to (R), it is possible to provide a display device with improved sound output characteristics.

The first member 911 and the second member 912 may be respectively disposed symmetrically or asymmetrically with respect to the first sound generating device 1300 . For example, the first member 911 or the second member 912 may be disposed above or below the third member 913 or the fourth member 914 with respect to the first sound generating device 1300 . have. 10A illustrates that the first member 911 and the second member 912 are composed of two or the third member 913 and the fourth member 914 are composed of two. However, the present invention is not limited thereto, and one or more of the first member 911 and the third member 913 may be configured. For example, only one of the first member 911 and the second member 912 may be configured or one of the third member 913 and the fourth member 914 may be configured. When the first member 911 and the second member 912 are configured as one or the third member 913 and the fourth member 914 are configured as one, the first member 911 and the third member 913 are It may be disposed symmetrically with respect to the first sound generating device 1300 . For example, the first member 911 and the third member 913 may be disposed on the same line as the first sound generating device 1300 with respect to the first sound generating device 1300 . As another example, the first member 911 and the third member 913 may be disposed on the same line as the second sound generator 1300' with respect to the second sound generator 1300'. When the first member 911 and the second member 912 are configured as one or the third member 913 and the fourth member 914 are configured as one, the first member 911 and the third member 913 are It may be asymmetrically disposed with respect to the first sound generating device 1300 . For example, with respect to the first sound generating device 1300 , the first member 911 is disposed on the first sound generating device 1300 , and the third member 913 is the first sound generating device 1300 . can be placed under As another example, the first member 911 is disposed on the second sound generating device 1300' with respect to the second sound generating device 1300', and the third member 913 is the second sound generating device ( 1300').

The first member 911 to the fourth member 914 may be formed of one of a double-sided tape, a single-sided tape, an adhesive, and a bond. Since the first member 911 to the fourth member 914 are disposed in the horizontal direction of the display panel 100 , the third pad 813 and the fourth pad 814 , or the ninth pad 823 and the tenth pad 823 . When the pad 824 is made of a material different from that of the pad 824 , a wave phenomenon may occur due to different adhesive force when in contact with the display panel 100 . Accordingly, the first member 911 to the fourth member 914 may be made of the same material as the third pad 813 and the fourth pad 814 , or the ninth pad 823 and the tenth pad 824 . In this case, the wave phenomenon can be reduced, and the occurrence of an abnormal sound can be reduced. The first member 911 and the second member 912 may be made of the same material as the third pad 813 and the fourth pad 814 . The third pad 813 and the fourth pad 814 may be made of the same material as the first pad 811 or the second pad 812 . The third member 913 and the fourth member 914 may be formed of the same material as the ninth pad 823 and the tenth pad 824 . The third pad 813 and the fourth pad 814 may be made of the same material as the first pad 811 or the second pad 812 . The ninth pad 823 and the tenth pad 824 may be made of the same material as the first pad 811 and the second pad 812 . For example, the first member 911 to the fourth member 914 may be formed of a single-sided tape. The single-sided tape may be made of a foam material capable of absorbing an impact upon contact with the display panel 100 . It was found that, in the case of non-foam material, an undesired abnormal sound appeared due to contact with the display panel 100 . The single-sided tape may be made of, for example, polyurethane, polyolefin, and polyethylene, but is not limited thereto.

The shapes of the first pads 811 to the fourth pads 814, the shapes of the seventh pads 821 to the tenth pads 824, and the shapes of the first members 911 to the fourth members 914 are quadrangular. Alternatively, it may be a square with a rounded end, and it is not limited thereto and may be configured in various shapes such as a circle.

Therefore, by configuring the partition according to the shape of the display panel and configuring one or more pads on at least one side of the partition, the wave phenomenon can be reduced, and the peak and dip phenomenon caused by the standing wave can be reduced, thereby improving the sound output characteristics. can do it In addition, by configuring the partitions and the pads differently from each other, the wave phenomenon can be reduced and the generation of abnormal sounds can be prevented, so that the sound output characteristics can be improved. And, by further configuring the member, it is possible to further improve the sound output characteristics.

11A to 11C are diagrams illustrating another embodiment of a sound generating device and a partition according to an embodiment of the present specification.

11A to 11C may omit and briefly describe the same content as that described in FIGS. 8A to 10C . For example, the description of the sound generating device and the pad may be omitted or briefly described. The description of the partition, the pad, and the member will be described with reference to FIG. 11A as an example, and the description thereof may be equally applied to FIGS. 11B and 11C .

11A to 11C , in order to reduce a peak or dip phenomenon caused by standing waves generated in the longitudinal direction of the first and second sound generators, a pad may be formed on at least one side of the first partition 1700 . can For example, the first partition 1700 includes a first side and a second side perpendicular to the first side, and a first pad 811 and a seventh pad 821 are formed on the first side. can A second pad 812 and an eighth pad 822 may be further configured on a side facing the first side of the first partition 1700 . A third pad 813 , a fourth pad 814 , a ninth pad 823 , and a tenth pad 824 may be configured on the second side of the first partition 1700 . The descriptions of the first to fourth pads 811 , 812 , 813 , and 814 and the seventh to tenth pads 821 , 822 , 823 , and 824 are the same as those described with reference to FIGS. 8A to 8C , and thus detailed descriptions are provided here. may be omitted or briefly explained.

11A , at least one fifth pad 815 , a sixth pad 816 , an eleventh pad 825 , and a twelfth pad ( 826) may be further disposed. For example, the fifth pad 815 and the sixth pad 816 are disposed on sides opposite to the second side of the first partition 1700 in the first area L, and the second partition 1700'. A fifth pad 815 and a sixth pad 816 may be disposed on one side of the . For example, the eleventh pad 825 and the twelfth pad 826 are disposed on sides opposite to the second side of the first partition 1700 in the second region R, and the third partition 1700 ″). An eleventh pad 825 and a twelfth pad 826 may be disposed on one side of the . The fifth pad 815 and the sixth pad 816 include the third pad 813 and the fourth pad 814 ) may be configured to face.For example, the fifth pad 815 and the sixth pad 816 may be symmetrically disposed with respect to the first sound generating device 1300. The eleventh pad ( 825 and the twelfth pad 826 may be configured to face the ninth pad 823 and the tenth pad 824. For example, the eleventh pad 925 and the twelfth pad 926 may be 2 It may be arranged symmetrically with respect to the sound generating device 1300'.

The at least one fifth pad 815 or the at least one fifth pad 816 may be made of a material different from that of the first partition 1700 . The at least one fifth pad 815 or the at least one sixth pad 816 is made of a material different from that of at least one of the first partition 1700, the second partition 1700', and the third partition 1700". The at least one fifth pad 815 or the at least one sixth pad 816 may be made of the same material as the at least one first pad 811 .

The at least one eleventh pad 825 or the at least one twelfth pad 826 may be made of a material different from that of the first partition 1700 . The at least one eleventh pad 825 or the at least one twelfth pad 826 is made of a material different from that of at least one of the first partition 1700, the second partition 1700', and the third partition 1700". The at least one eleventh pad 825 or the at least one twelfth pad 826 may be made of the same material as the at least one first pad 811. At least one eleventh pad ( 825 ) or the at least one twelfth pad 826 may be made of the same material as the at least one seventh pad 821 .

The first to sixth pads 811 , 812 , 813 , 814 , 815 , 816 and seventh to twelfth pads 821 , 822 , 823 , 824 , 825 , 826 are different from the first partition 1700 . It can be made of materials. The first to sixth pads 811 , 812 , 813 , 814 , 815 , and 816 and seventh to twelfth pads 821 , 822 , 823 , 824 , 825 , 826 are formed in the second partition 1700 ′ or It may be made of a material different from that of the third partition 1700″. For example, the first to sixth pads 811, 812, 813, 814, 815, 816 and seventh to twelfth pads 821 may be used. , 822 , 823 , 824 , 825 , and 826 may be formed of a single-sided tape, and the single-sided tape may be made of a foam material capable of absorbing an impact upon contact with the display panel 100. Foam material If this is not the case, an unwanted abnormal sound may appear due to contact with the display panel 100. The single-sided tape may be made of, for example, polyurethane, polyolefin, and polyethylene. The first partition 1700, the first to sixth pads 811, 812, 813, 814, 815, and 816, and the seventh to twelfth pads 821, 822, 823, When 824, 825, and 826) are made of different materials, the same material and different adhesive strength may be used, or different materials and different adhesive strength materials may be used, but the present invention is not limited thereto. first to sixth pads 811, 812, 813, 814, 815, 816, and first partition 1700 and third partition 1700" in first partition 1700 and second partition 1700' ) in the seventh to twelfth pads 821 , 822 , 823 , 824 , 825 , and 826 may reduce the pulling of the display panel 100 when the display panel 100 and the support member 300 are attached to each other. , the wave phenomenon can be prevented.

At least one first member 911 or at least one second member 912 may be further disposed on one or more sides of the second partition 1700 ′. At least one third member 913 or at least one fourth member 914 may be further disposed on one or more sides of the third partition 1700 ″. Since it is the same as the content described with reference to FIGS. to 10C , a detailed description thereof will be omitted.

Therefore, by configuring the partition according to the shape of the display panel and configuring one or more pads on at least one side of the partition, the wave phenomenon can be reduced, and the peak and dip phenomenon caused by the standing wave can be reduced, thereby improving the sound output characteristics. can do it In addition, by configuring the partitions and the pads differently from each other, the wave phenomenon can be reduced and the generation of abnormal sounds can be prevented, so that the sound output characteristics can be improved. And, by further configuring the member, it is possible to further improve the sound output characteristics.

The sound generating device according to the embodiment of the present specification can be applied to the sound generating device disposed on the display device. A display device according to an embodiment of the present specification includes a mobile device, a video phone, a smart watch, a watch phone, a wearable apparatus, a foldable device, and a rollable device. apparatus), bendable apparatus, flexible apparatus, curved apparatus, electronic notebook, e-book, PMP (portable multimedia player), PDA (personal digital assistant), MP3 player, mobile Medical equipment, desktop PC, laptop PC, netbook computer, workstation, navigation, vehicle navigation, vehicle display device, television, wallpaper device, SHINAGE ( signage) devices, game devices, laptops, monitors, cameras, camcorders, and home appliances. And, the sound generating device of the present specification can be applied to an organic light emitting lighting device or an inorganic light emitting lighting device. When the sound generating device is applied to a lighting device, the sound generating device may serve as a light and a speaker.

A display device according to an embodiment of the present specification may be described as follows.

A display device according to an embodiment of the present specification includes a display panel for displaying an image, disposed on a rear surface of the display panel, a support member for supporting the display panel, and disposed on a rear surface of the display panel, and generates sound by vibrating the display panel at least one sound generating device, and a connecting part connecting the support member and the at least one sound generating device, wherein the at least one sound generating device includes a plate disposed to be spaced apart from the support member, a frame outside the plate, and a plate It includes a magnet and a center pole disposed on the center pole, a bobbin around the center pole, and a coil outside the bobbin, and the connecting portion is disposed between the support member and the frame.

According to some embodiments of the present specification, it is disposed on the lower side of the support member, further comprising a coupling member for coupling the sound generating device and the support member, the connection portion may be between the coupling member and the frame.

According to some embodiments of the present specification, the coupling member includes a nut and a screw, and the connection portion may be between the screw and the frame.

According to some embodiments of the present specification, the connecting portion may be disposed between the coupling member and the lower portion of the frame.

According to some embodiments of the present specification, the connecting portion may be disposed between each of the corners of the coupling member and the frame.

According to some embodiments of the present specification, the connection part is disposed between the coupling member and the frame, and may be disposed along the periphery of the frame.

According to some embodiments of the present specification, the at least one sound generator further includes a damper between the frame and the bobbin, and the at least one sound generator includes a plate, a magnet, a center pole, a bobbin, a coil, a frame, and a damper. can vibrate the display panel to generate sound.

According to some embodiments of the present specification, the at least one sound generating device may include one or more of a circle, an oval, and a pair of sound generating devices.

A display device according to an embodiment of the present specification displays an image, and includes at least one of a display panel including a first area, a second area, and a third area, a first area, a second area, and a third area. at least one sound generating device disposed in the region, a support member disposed on the rear surface of the display panel, disposed on the rear surface of the display panel, and spaced apart from the at least one sound generating device, and at least one sound generating device and supporting member and a connection portion disposed between the members.

According to some embodiments of the present specification, at least one sound generating device may include a plate, a magnet and a center pole disposed on the plate, a bobbin around the center pole, and a coil outside the bobbin.

According to some embodiments of the present specification, a coupling member for coupling the at least one sound generating device and the support member may be further included, and the connection portion may be between the plate and the coupling member.

According to some embodiments of the present specification, a first partition is disposed between the display panel and the support member and includes a first side and a second side perpendicular to the first side, and is disposed between the first area and the third area. It may further include a second partition, and a third partition between the second area and the third area.

According to some embodiments of the present specification, at least one first pad disposed in the first area and disposed on a first side, and at least one second pad disposed on a side facing the at least one first pad, The at least one first pad or the at least one second pad may be made of a material different from that of the first partition.

According to some embodiments of the present specification, at least one third pad or at least one fourth pad disposed in the first area and disposed on the second side further includes at least one third pad or at least one The fourth pad may be made of the same material as the at least one first pad.

According to some embodiments of the present specification, at least one seventh pad disposed in the second region and disposed on a first side, and at least one eighth pad disposed on a side opposite to the at least one eighth pad; The at least one seventh pad or the at least one eighth pad may be made of the same material as the at least one first pad.

According to some embodiments of the present specification, at least one ninth pad or at least one tenth pad disposed on the second side is disposed in the second area, and at least one ninth pad or at least one The tenth pad may be made of the same material as the at least one first pad.

According to some embodiments of the present specification, one of the second partition and the third partition may be formed of a material different from that of the at least one first pad.

According to some embodiments of the present specification, at least one fifth pad or at least one sixth pad disposed in the first area and disposed on one side of the second partition, the at least one fifth pad Alternatively, the at least one sixth pad may be made of the same material as the at least one first pad.

According to some embodiments of the present specification, at least one eleventh pad or at least one twelfth pad disposed in the second region and disposed on one side of the third partition, the at least one eleventh pad Alternatively, the at least one twelfth pad may be made of the same material as the at least one first pad.

According to some embodiments of the present specification, at least one first member or at least one second member disposed in the third region and disposed on one side of the second partition, the at least one first member Alternatively, the at least one second member may be made of the same material as the at least one first pad.

According to some embodiments of the present specification, at least one third member or at least one fourth member disposed in the third region and disposed on one side of the third partition, the at least one third member Alternatively, the at least one fourth member may be made of the same material as the at least one first pad.

According to some embodiments of the present specification, one of the second partition and the third partition may be made of the same material as the first partition.

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 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.

10: display device 100: display panel
200, 200', 1300, 1300', 1800, 1800', 1900, 1900': sound generator
300: support member
400: adhesive member
811, 812, 813, 814, 815, 816, 821, 822, 823, 824, 825, 826: pad
911, 912, 913, 914: Absent
700, 1700, 1700', 1700": Partition

Claims (30)

a display panel for displaying an image;
a support member disposed on a rear surface of the display panel;
at least one sound generating device disposed on a rear surface of the display panel;
a connection unit connected to the at least one sound generating device; and
and a coupling member disposed on the rear surface of the support member and connected to the connection part,
The at least one sound generating device,
a plate spaced apart from the support member;
a frame on the outside of the plate;
a magnet disposed on the plate;
a bobbin around the magnet; and
comprising a coil outside the bobbin,
The connection part,
a plurality of first connections connected to the frame; and
and a second connection part disposed on the rear surface of the support member by the coupling member to surround the at least one sound generating device and connected to the plurality of first connection parts,
The plurality of first connection parts extend from the frame to the second connection part to have a curved shape,
The display device of claim 1, wherein the frame and the plurality of first and second connectors are integrally formed. The method of claim 1,
and the connection part vibrates together with the at least one sound generating device. The method of claim 1,
The plurality of first connection parts are spaced apart from each other with an air gap therebetween between the support member and the at least one sound generating device. The method of claim 1,
The plurality of first connection parts are disposed on the same plane between the at least one sound generator and the second connection part. The method of claim 1,
Each of the plurality of first connection parts and the second connection part is made of a metal material that is deformable according to vibration of the at least one sound generating device. The method of claim 1,
The plurality of first connection parts are curved between the frame and the second connection part, and vibrate together with the at least one sound generating device. a display panel that displays an image and includes a first area, a second area, and a third area;
at least one sound generating device disposed on a rear surface of at least one of the first area, the second area, and the third area of the display panel;
a support member disposed on a rear surface of the display panel;
a connection unit connected to the at least one sound generating device; and
And a coupling member for connecting the connecting portion to the rear surface of the support member,
the at least one sound generating device vibrates the display panel to generate sound,
The at least one sound generating device,
a plate spaced apart from the support member;
a frame on the outside of the plate;
a magnet disposed on the plate;
a bobbin around the magnet; and
including a coil outside the bobbin;
The connection part,
a plurality of first connections connected to the frame; and
and a second connection part disposed on the rear surface of the support member by the coupling member to surround the at least one sound generating device and connected to the plurality of first connection parts,
The plurality of first connection parts extend from the frame to the second connection part to have a curved shape,
The display device of claim 1, wherein the frame and the plurality of first and second connectors are integrally formed. 8. The method of claim 7,
Each of the plurality of first connection parts and the second connection part is made of a metal material that is deformable according to vibration of the at least one sound generating device. 8. The method of claim 7,
The plurality of first connection parts are spaced apart from each other with an air gap therebetween between the coupling member and the at least one sound generating device. 8. The method of claim 7,
The plurality of first connection parts is disposed on the same plane between the frame and the second connection part. delete 11. The method according to any one of claims 1 to 10,
The plurality of first connection parts vibrate together with the plate, the magnet, the bobbin, the coil, and the frame. 11. The method according to any one of claims 1 to 10,
The coupling member includes a nut and a screw, and the plurality of first connecting portions are between the screw and the frame. delete 11. The method according to any one of claims 1 to 10,
The plurality of first connection parts is disposed between the frame and the second connection part to be spaced apart from each other along a periphery of the frame. delete 11. The method according to any one of claims 1 to 10,
A length of each of the plurality of first connecting portions disposed between the frame and the second connecting portion is greater than a distance between the frame and the second connecting portion. a display panel for displaying an image;
a support member disposed on a rear surface of the display panel;
at least one sound generating device disposed on a rear surface of the display panel; and
and a coupling member disposed on the rear surface of the support member and connected to the at least one sound generating device,
The at least one sound generating device,
a plate spaced apart from the support member;
a frame on the outside of the plate;
a magnet disposed on the plate;
a bobbin around the magnet;
a coil outside the bobbin;
a plurality of first connections connected to the frame; and
and a second connection part disposed on the rear surface of the support member by the coupling member to surround the at least one sound generating device and connected to the plurality of first connection parts,
The plurality of first connection parts extend from the frame to the second connection part to have a curved shape,
The display device of claim 1, wherein the frame and the plurality of first and second connectors are integrally formed. 11. The method according to any one of claims 7 to 10,
a first partition disposed between the display panel and the support member and including a first side and a second side perpendicular to the first side;
a second partition between the first area and the third area; and
and a third partition between the second area and the third area. 20. The method of claim 19,
At least one first pad disposed on at least one of the first partition and the second partition in the first area, and at least one of the first and third partitions disposed on at least one of the first partition and the third partition in the second area The display device further comprising at least one of the second pad. 21. The method of claim 20,
and the at least one first pad or the at least one second pad is made of a material different from that of at least one of the first to third partitions. 21. The method of claim 20,
At least one member disposed in at least one of the second partition and the third partition in the third region,
and the at least one member is made of the same material as that of the first pad or the second pad. delete delete delete delete delete delete delete delete

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