KR102505087B1 - Display apparatus - Google Patents

Abstract

A display device according to an embodiment of the present specification includes a display panel 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 the support member and the at least one A connection portion connecting one sound generating device, wherein the at least one sound generating device includes a plate disposed 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 vibration and vibrates together with the at least one sound generating device to vibrate the display panel and generate sound toward the 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 display field that visually expresses electrical information signals has developed rapidly. is being developed.

Examples of such a display device include a liquid crystal display device, a field emission display device, an organic light emitting 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 device includes an array substrate including thin film transistors, an upper substrate including color filters and/or a black matrix, and a liquid crystal layer between the array substrate and the upper substrate. It is a device that displays an image by adjusting the alignment of the liquid crystal layer according to the electric field applied between the two electrodes in the pixel area and adjusting the transmittance of light according to the alignment.

Further, the organic light emitting display device is a self-light emitting device and has advantages of a fast response speed and a large light emitting efficiency, luminance, and viewing angle compared to other display devices.

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

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

Accordingly, the inventors of the present specification have recognized the above-mentioned problems, and have conducted several experiments to ensure that the direction of sound travels to the front of the display panel when viewing an image from the front of the display panel, and that the sound quality can be improved. . Through various experiments, a display device with a new structure capable of generating sound so that the direction of sound travels toward the front of the display panel and improving sound quality was invented.

The problem 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 sound so that the direction of sound travels toward the front of the display panel and improving sound output characteristics in a low-pitched range. will be.

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

A display device according to an embodiment of the present specification includes a display panel 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 the support member and the at least one A connection portion connecting one sound generating device, wherein the at least one sound generating device includes a plate disposed 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 vibration and vibrates together with the at least one sound generating device to vibrate the display panel and generate sound toward the front of the display panel.

A display device according to an 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 Disposed in at least one of the third areas, 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 the at least one sound generating device including a damper between the frame and the bobbin, a support member disposed on a rear surface of the display panel and spaced apart from the plate, and a spaced area between the plate and the support member and includes a plurality of connecting parts that are deformed according to vibration of the at least one sound generating device to give elasticity to the plate, and include the plate, the magnet, the center pole, the bobbin, the coil, the frame, the damper, and The plurality of connecting parts vibrate together to vibrate the display panel to generate sound.

Other embodiment specifics are included in the detailed description and drawings.

In the display device according to the exemplary embodiment of the present specification, a sound generating device configured to generate sound by vibrating the display panel may generate sound so that the sound of the display device travels toward the front surface of the display panel. Accordingly, it is possible to improve a viewer's sense of immersion in viewing an image of the display device.

In addition, since the display device according to the embodiment of the present specification configures a sound generating device that generates sound by vibrating the display panel, it is not necessary to configure a speaker, so the degree of freedom in the design of the set device and the arrangement of the speaker can be improved. there is.

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

Further, the display device according to the embodiment of the present specification is a display in which sound output characteristics in a low-pitched range can be improved by arranging the support member and the sound generating device at a distance from each other and configuring a connection between the supporting member and the sound generating device. device can be provided.

Also, since the display device according to the exemplary embodiment of the present specification configures a partition and at least one pad on at least one side of the partition, peak and dip phenomena caused by standing waves can be reduced, and thus sound output characteristics can be improved.

Further, the display device according to the exemplary 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 configuring at least one member on at least one side of the partition. , it is possible to provide a display device with improved sound output characteristics.

In addition, since the display device according to the embodiment of the present specification configures a partition between at least one sound generating device disposed on the display panel to separate sound by the partition, it is possible to realize stereo sound and output sound. A display device with improved characteristics can be provided.

Further, the display device according to the exemplary embodiment of the present specification includes a partition, at least one pad on at least one side of the partition, and at least one member, and at least one of the partition, pad, and member is made of a different material. Accordingly, 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 description below.

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

1A is a diagram illustrating a display device including a sound generating device according to an embodiment of the present specification.
Figure 1b is a cross-sectional view taken along the cutting line II' of Figure 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 diagrams illustrating contents of generating sound of the sound generating device according to the first structure of the embodiment of the present specification.
4A and 4B are diagrams for explaining sound generation 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 diagrams 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 this specification, and methods of achieving them, will become clear with reference to embodiments described below in detail in conjunction with the accompanying drawings. However, this specification is not limited to the embodiments disclosed below, but will be implemented in a variety of different forms, and only these embodiments make the disclosure of this specification complete, and the common knowledge in the technical field to which this specification belongs. It is provided to fully inform the owner of the scope of the invention, and this specification is only defined by the scope of the claims.

The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of this specification are illustrative, so this specification is not limited to the matters shown. Like reference numbers designate like elements throughout the specification. In addition, in describing 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 will be omitted. When "includes", "has", "consists of", etc. mentioned in this specification is used, other parts may be added unless "only" is used. In the case where a component is expressed in the singular, the case including the plural is included unless otherwise explicitly stated.

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

In the case of a description of a positional relationship, when the positional relationship of two parts is described as "on", "upper", "below", "beside", etc., for example, "immediately" or "directly" Unless used, one or more other parts may be located between the two parts.

In the case of a description of a temporal relationship, for example, when a temporal precedence relationship is described with “after”, “next to”, “next to”, “before”, etc., “immediately” or “directly” is not used. It can also include cases where it is not consecutive.

Although 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. Therefore, the first component mentioned below may also be the second component within the technical spirit of the present invention.

In describing the components of the present specification, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish the component from other components, and the nature, sequence, order, or number of the corresponding component is not limited by the term. When an element is described as being “connected”, “coupled” or “connected” to another element, that element is directly connected or may be connected to the other element, but indirectly unless specifically stated otherwise. It should be understood that other components may be "interposed" between each component that is or can be connected.

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

Each feature of the various embodiments of the present specification can be partially or entirely combined or combined with each other, technically various interlocking and driving are possible, and each embodiment can be implemented independently of each other or can be implemented together in an association relationship. may be

In this specification, a “display device” may include a display device such as a liquid crystal module (LCM) including a display panel and a driver for driving the display panel, or an organic light emitting display module (OLED module). In addition, equipment including a laptop computer, a television, a computer monitor, an automotive apparatus, or other types of vehicles, which are complete or final products including LCM and OLED modules, etc. 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.

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

And, in some examples, LCM and OLED modules 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 an LCM and OLED module may be distinguished 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, which is a set controller for controlling.

The display panel used in this embodiment may be 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. 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 exemplary 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 the 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 a liquid crystal layer formed between the array substrate and the upper substrate It can be configured to include.

Also, 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 in intersections of the gate lines and data lines. And, an array substrate including a thin film transistor as an element for selectively applying voltage to each pixel, an organic light emitting diode (OLED) layer on the array substrate, and an encapsulation substrate disposed on the array substrate to cover the organic light emitting diode 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 element layer from external impact, and may prevent penetration of moisture or oxygen into the organic light emitting element layer. And, 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. Other examples may include micro light emitting diodes.

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

In the present specification, a display panel including a sound generating device may be applied to a vehicle as a user interface module such as a central control panel in an automobile. For example, such a display panel may be implemented between occupants of the two front seats so that vibrations of the display panel are propagated toward the inside 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, looking at the embodiments of the present specification through the accompanying drawings and embodiments are as follows.

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

1A shows 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 generator 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 sound toward the front of the display panel 100 .

The display panel 100 displays an image and can be implemented with 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. there is. The display panel 100 may vibrate according to the vibration of the sound generating device 200 to output sound.

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

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

Figure 1b is a cross-sectional view taken along the cutting line II' of Figure 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 . Also, the sound generating device 200 may be fixed to the support member 300 .

In this specification, the support member 300 may be, for example, a cover bottom. Alternatively, a middle cabinet may be further included that surrounds a 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 . For example, the middle cabinet may have a "┤" shape (or a T-shape having an angle of 90 degrees). 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 surface of the display panel 100 .

Also, the support member 300 may be a plate-shaped member formed over the rear surface or the entire surface of the display panel 100 . For example, the support member 300 covers the entire rear surface of the display panel 100 at a distance from each other, and may have a flat plate shape made of glass, metal, or plastic. Here, the edge or sharp corner of the support member 300 may have a slope shape or a curved shape by a chamfering process or a corner rounding process. According to one example, the support member 300 made of glass may be sapphire glass. For example, the metal support member 300 may be made of any one of aluminum, aluminum alloy, magnesium alloy, and alloy of iron and nickel. As 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 smaller thickness than that of the glass plate. In this case, the display device ( 10) may be used as a mirror surface by means of a metal plate.

Also, the support member 300 may include a through hole into which the sound generating device 200 is inserted. For example, the through hole may have a circular or polygonal shape in a set portion of the support member 300 along the thickness direction of the support member 300 to insert the sound generating device 200 .

Further, 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. Accordingly, as a support for supporting the display panel 100 , any type of frame or plate-shaped structure disposed on the rear surface of the display device may be included.

Also, the adhesive member 400 may be disposed at an 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, and 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 generating device may be classified into a first structure in which a magnet is disposed outside a coil and a second structure in which a magnet is disposed inside a coil. The first structure can be expressed as a dynamic type or an external magnetic type. And, the second structure may be expressed as a micro type or an internal magnetic type.

Fig. 2a shows a first structure, and Fig. 2b shows 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.

For example, the magnet 220 may be 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 generator 200 to the support member 300 while supporting the magnet 220. Therefore, the first plate 210 may be fixed to the support hole formed in the support member 300, and the magnet 220 located between the first plate 210 and the second plate 210' is 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 by other terms such as a yoke.

The magnet 220 may use a sintered magnet such as barium ferrite, and the material is iron trioxide (Fe ₂ O ₃ ), barium carbonate (BaCO ₃ ), neodymium (Nd) magnet, and strontium with improved magnetic component. Alloy cast magnets such as ferrite (Fe ₁₂ O ₁₉ Sr), aluminum (Al), nickel (Ni), and cobalt (Co) may be used. As another example, the neodymium magnet may be neodymium-iron-boron (Nd-Fe-B). However, it 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 the central area of the first plate 210 . The center pole 230 and the first plate 210 may be integrally formed. The center pole 230 may also 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 while surrounding the center pole 230 . The coil 260 is wound around the lower outer region of the bobbin 250, for example, the lower outer surface, and a current for sound generation 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 certain area of the lower side of the bobbin 250 . The bobbin 250 and the coil 260 may be combined and expressed as a voice coil. The damper 270 may be disposed between the frame 240 and a partial area of the upper side of the bobbin 250 . A damper may also be expressed by 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 sound generating display device 200' of the second structure includes a magnet 220 on a 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 also 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 of the inner magnetic type has an advantage in that leakage flux is small and the overall size can be reduced. A sound generating device used in a display device according to an embodiment of the present specification is not limited to the structure shown in FIGS. 2A and 2B. Other types of sound generating devices capable of generating sound by vibrating the display panel or by directly vibrating the display panel may also be used.

3A and 3B are diagrams illustrating contents 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 current is applied.

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

In this state, when a sound generation current 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 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 bobbin 250 as a whole is 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 bobbin 250 moves the display panel 100 upward (indicated by an arrow) according to the application or non-appliance of current to the coil 260. This vibration causes sound waves (or sounds) to be generated. In this state, when current application is stopped or current in the opposite direction is applied, as shown in FIG. 3B, a force is generated to move the bobbin 250 downward according to the similar principle described in FIG. 3A, and the display panel 100 ) vibrates in the downward direction (indicated by the arrow).

The damper 270 may be disposed between the frame 240 and a partial area of the upper side of the bobbin 250 . The damper 270 has a pleated 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 connected to the bobbin 250 and the frame 240, the vertical vibration of the bobbin 250 can be controlled by the restoring force of the damper 270. For example, when the bobbin 250 vibrates above a certain height or below a certain 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 diagrams for explaining sound generation of the sound generating device according to the second structure of the embodiment of the present specification.

4A shows a state in which 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, so that an external magnetic field is formed around the coil 260. The S pole and the N pole can be interchanged, and the sound generating device can be operated in the same way 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 moving the bobbin 250 upward is generated by the applied magnetic field and the external magnetic field. For example, when 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 bobbin 250 as a whole is 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 vibrates in an upward direction (indicated by an arrow) according to the application or non-appliance of current to the coil 260. Sound waves (or sounds) are generated by this vibration. In this state, when current application is stopped or current in the opposite direction is applied, as shown in FIG. 4B, a force is generated to move the bobbin 250 downward according to the similar principle described in FIG. 4A, and the display panel 100 ) vibrates in the downward direction (indicated by the arrow).

The damper 270 may be disposed between the frame 240 and a partial area of the upper side of the bobbin 250 . The damper 270 has a pleated 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 connected to the bobbin 250 and the frame 240, the vertical vibration of the bobbin 250 can be controlled by the restoring force of the damper 270. For example, when the bobbin 250 vibrates above a certain height or below a certain 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 between a sound generating device and a support member according to an embodiment of the present specification.

In the embodiment of the present specification, both 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 a diameter expansion unit 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 larger protrusion than the diameter of the rest of the first plate 210 . The area of the protruding portion having a larger diameter may be referred to as an enlarged diameter portion 614 . The enlarged diameter part 614 may have an annular shape. Extensions 612 for fixing the sound generating device 200 may be formed on some of the enlarged diameters 614 .

A screw 320 and a nut 330 may be configured in the extension 612 . The sound generating device 200 may be coupled to the support member 300 by the screw 320 using the nut 330 fixed to the support member 300 . Nut 330 may be, for example, a self-clinching nut. One example of a 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 using a self-clinching nut, the vibration generated by the sound generating device 200 may be partially absorbed by the self-clinching 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 can vibrate (indicated by V1) up and down. In addition, since the first plate 220 and the support member 300 are fixed with the screws 320, the stiffness of the sound generating device 200 can be increased. As a result, 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 has been recognized that the low-pitched sound range output from the sound generating device 200 cannot be lowered. . Accordingly, the inventor, through various experiments, invented a sound generating device having a new structure capable of lowering the resonant frequency of the sound generating device and improving the low-pitched sound range. This will be described with reference to FIGS. 6 and 7 .

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

In the embodiment of the present specification, both 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 device according to another embodiment of the present specification, and FIG. 6B is a rear view of the sound generating device 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, and a magnet 1220. A bobbin 1250 disposed around the center pole 1230 and a coil 1260 wound around the bobbin 1250 may be included.

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 also 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 edge, but is not limited thereto. The plate 1210 may be expressed by other terms such as a yoke, but is not limited thereto.

The display panel 100 may be attached to the bobbin 1250 of the sound generating device 1300 via a 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 generator 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 disk shape having a certain thickness. no. 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, the effect of heat generated when the sound generating device vibrates on the image quality of the display panel can be reduced.

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 is not fixed in order to solve the problem of increasing the rigidity of the sound generating device. In order to fix the sound generating device to the support member, several experiments were conducted on how to lower the rigidity without fixing the plate to the support member. Through various experiments, it was recognized that the plate should not be fixed by the support member and the screw, and 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 generating device so that the sound generating device is fixed to the supporting member. 6A and 6B, the plate 1210 and the support member 300 of the sound generating device 1300 may be spaced apart from each other, and a structure disposed between the plate 1210 and the support member 300 may be , for example, may be the connection unit 1280. The connecting portion 1280 may be metal or plastic, but is not limited thereto. For example, the connector 1280 may reduce rigidity by giving elasticity to the plate 1210 and may improve low-pitched sound of the sound generating device 1300 by lowering a resonant frequency. 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 reduce the resonance frequency by reducing the stiffness k or increasing the mass m of the object, so that low-pitched sound can be improved. . Since the connection unit 1280 can lower the resonance frequency by lowering the rigidity of the sound generating device 1300, the low-pitched sound of the sound generating device 1300 can be improved. As another example, the sound generating apparatus 1300 may reduce 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 below the support member 300 . The coupling member 1310 may include a screw 1320 and a nut 1330. Nut 1330 may be, for example, a self-clinching nut. One example of a 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 fit form, 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 connecting portion 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 lower periphery of the frame 1240 to the screw 1320 . Accordingly, the connecting portion 1280 may stably support the plate 1210 surrounded by the frame 1240 and may reduce the rigidity of the sound generating device 1300 by giving elasticity to the plate 1210 .

The frame 1240 may have a circular shape, a rectangular shape, and a rectangular 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 is a screw 1320 and the frame 1240 ) may be disposed between each of the corners of 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 around the frame 1240 according to the shape of the frame 1240, and the connection part 1280 disposed around the frame 1240 may be connected to the screws 1320 in the frame 1240. can be placed in between. For example, when the frame 1240 is a rectangle or a rectangle with rounded corners, the connector 1280 may be disposed around the frame 1240 along the rectangle or a rectangle with rounded corners of the frame 1240, and the frame ( The connecting portion 1280 disposed around the periphery of the frame 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 outside the frame 1240 according to the shape of the frame 1240, and the connection part 1280 disposed outside the frame 1240 may be connected to the screws 1320 in the frame 1240. can be placed in between. For example, when the frame 1240 is a rectangle or a rectangle with rounded corners, the connector 1280 may be disposed outside the frame 1240 along the rectangle or a rectangle with rounded corners of the frame 1240, and the frame ( The connecting portion 1280 disposed outside the frame 1240 may be disposed between the screws 1320 at each of the four corners of the frame 1240 . Without being limited thereto, the connecting portion 1280 may be disposed at a portion other than the corner of the frame 1240 . . For example, when the frame 1240 is a rectangle or a rectangle with rounded corners, the connecting portion 1280 may be disposed between the frame 1240 and the coupling member 1310, and the connecting portion 1280 is connected to the frame 1240. Any position between the coupling members 1310 may be possible. For example, when the frame 1240 has a circular shape, the connecting portion 1280 may be disposed between the frame 1240 and the coupling member 1310, and the connecting portion 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 outside the frame 1240 may be integrally formed through a laser process. there is. Without being limited thereto, the connecting portion 1280 may be configured in the form of laser, etching, and punching using a mold. Therefore, since a plurality of connecting parts 1280 are configured, the supporting force of 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 resilient. The rigidity of the sound generating device 1300 can be reduced by giving

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 space in which sound is generated when the display panel 100 vibrates. Compared to FIG. 5, since the vibration of the sound generating device 1300 can vibrate the entire sound generating device 1300 (indicated by V2), the sound output characteristics of the sound generating device 1300 can be further improved. there is. For example, the sound generating device 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 with improved sound output characteristics in 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 indicates the sound output characteristics of the sound generating device of FIG. 6 . Further, the horizontal axis represents frequency (Hz), and the vertical axis represents sound pressure level (SPL, dB).

Referring to FIG. 7 , it can be seen that the sound generating device according to the embodiment of the present specification has improved sound pressure in a region of 200 Hz or less, which is a low-pitched sound, compared to the case of the dotted line. For example, since the sound pressure of the dotted line at a frequency of 100 Hz is 60 dB and 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. Therefore, it can be seen that the sound generating device according to the embodiment of the present specification improves sound pressure in a low-pitched range. It can be seen that the sound generating device according to the embodiment of the present specification improves sound pressure in a region of 200 Hz to 3 kHz or less, which is a mid-range. The mid-range may be 200 Hz to 3 kHz, the high-pitched range may be 3 kHz or more, and the low-pitched range may be 200 Hz 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.

Referring to FIGS. 8A to 8C , the display panel 100 may include a first region L, a second region R, and a third region C. 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 area of the display panel 100. It may be the central region of the back. The left area and the right area may be compatible with each other, and for convenience, description will be made with the contents shown in the drawings. At least one sound generating device may be disposed in at least one of the first region L, the second region R, and the third region C. For example, the first sound generating device 1300 may be disposed in the first region L of the rear surface of the display panel 100, and the second sound generating device 1300' may be disposed on the rear surface of the display panel 100. It 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 generate sound by directly vibrating the display panel. For example, it is possible to generate low, middle and high-pitched sound and output 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 area L and the second area R of the display panel. For example, the first sound generating device 1300 is disposed in the first region L on the rear surface of the display panel 100, and the second sound generating device 1300' is disposed on the rear surface of the display panel 100. It is disposed in the second region (R). Also, as described in 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 may be disposed in the first region L, which 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 may vibrate. 1300' is disposed in the second region R, which 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 generating devices 1300 and 1300' may be independently driven by receiving different vibration signals. For example, the first sound generating device 1300 may generate sound by using the left area of the display panel 100 as a diaphragm, and the second sound generating device 1300' may generate sound by using the left area of the display panel 100 as a diaphragm. 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 circular sound generating devices. Since the circular sound generating device is the same as that described in FIGS. 6A and 6B , a description thereof is omitted here. In FIG. 8B, the first sound generating device 1900 and the second sound generating device 1900' may be configured as elliptical sound generating devices. The sound generating device described in FIGS. 6A and 6B may be applied to the elliptical sound generating device, and the bobbin may have an elliptical shape. When an elliptical sound generating device is applied, sound output characteristics in the middle and high-pitched range can be further improved. The description of FIGS. 6A and 6B may be applied to the coupling structure between the first and second sound generating devices 1900 and 1900' and the supporting member.

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 a pair of sound generating devices, the sound generating devices described in FIGS. 6A and 6B may be applied. For example, a pair of sound generating devices may include two sound generating devices described in FIGS. 6A and 6B , and the two sound generating devices may be disposed adjacent to each other. The description of FIGS. 6A and 6B may be applied to the coupling structure between the first and second sound generating devices 1800 and 1800' and the supporting member.

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

Referring to FIGS. 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 at the edge of the support member or the 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 rear surface of the display panel or the entire area of the support member. The first partition 1700 may be the entire area of the rear surface of the display panel or the outer four sides of the support member.

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

The first partition 1700, the second partition 1700', and the third partition 1700" generate sound when the display panel 100 vibrates by the first and second sound generators 1300 and 1300'. It may be an air gap or space in which sound is generated. An air gap or space that generates or transmits sound may 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 leakage of sound through each side of the display panel 100, thereby preventing first and second sounds. Since sound from the generators 1300 and 1300' can be output only to the front of the display panel 100, sound output characteristics 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 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 the third partition 1700" may be disposed on the display panel 100. In FIGS. 8A to 11C , the first partition 1700, the second partition 1700', and the third partition 1700" will be described as being 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 from the first sound generating device 1300 and the second sound generating device 1300'. The second partition 1700 ') and the third partition 1700", since the center of the display panel 100 attenuates or absorbs the vibration of the display panel 100 in a space or air gap, It is possible to block sound from the region from being transmitted to the space of the right region. Accordingly, since the display device according to the embodiment of the present specification constitutes the second partition 1700' and the third partition 1700", left and right sounds can be separated and sound output characteristics can be improved. And, The first sound generating device 1300 and the second sound generating device 1300' can output different low, middle, and high-pitched sounds, can output stereo sound by separating left and right sound, and output sound in the form of 2.1 channels. A display device having characteristics can be provided.

The first sound generating device 1300 in the first area L, which is the left area, and the second sound generating device 1300' in the second area R, the right area, and the third area C, which is the central area ) may not constitute a sound generating device. Due to this, it is possible to reduce sound quality deterioration due to interference in the left area and the right area. In addition, there is an effect of further improving the acoustic characteristics of the middle and high frequencies. Also, 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). When configured in this way, it is possible to improve the sound in the low-pitched range. And, the third region (C) can reduce deterioration of sound quality due to interference in the first region (L) and the second region (R). Therefore, it is possible to improve the sound in the low, middle, and high-pitched range. Also, 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 in FIG. 1 . Also, 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 in FIG. 1 . For example, an adhesive member may be further disposed at an edge of the display panel or an edge of the support member.

8A to 11C , the sound generating device is not located in the center of the left area, which is the first area L, or the right area, which is the second area R, of the display panel 100, but is disposed biased toward the left or right area. It shows what has happened. The present invention is not limited thereto, and the sound generating device may be disposed in the center of the left area, which is the first area L, or the right area, which is the second area R, of the display panel 100 . Alternatively, the sound generating device 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 center of the left area, which is the first area L, or the center of the right area, which is the second area R, of the display panel 100, it is located in the left or right area, stereo Acoustic properties can be further improved.

Between the first sound generating device 1300 and the second sound generating device 1300', a partition such as a double structure including two or more partitions may be configured. For example, in the case of implementing mono sound that outputs the same sound in the left and right areas, since the left and right areas of the display panel have the same vibration characteristics, a resonance or interference phenomenon is maximized in a certain frequency band, which may cause a problem in that the sound pressure decreases. there is. Therefore, the difference between the resonant frequencies of middle 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 influence of the acoustic characteristics caused by the noise, it can be configured with 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', even if sound interference in the left and right regions becomes severe, the decrease in sound pressure can be prevented, so that the sound It is possible to prevent a phenomenon in which output characteristics are recognized discontinuously.

Accordingly, by configuring two or more partitions in the central region of the display panel, the influence of acoustic characteristics due to the difference in resonant frequencies of middle and high sounds in the left and right regions of the display panel can be reduced. In addition, since the 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, different low, middle, and high-pitched sounds may be output by the two sound generating devices.

A substrate constituting the display panel 100 may use a glass substrate. In order to implement a display device with a smaller thickness, the thickness of the glass substrate may be configured to be thin. For example, a display device may be made 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, when the display panel and the support member are attached, the display panel itself is not flat due to the partition, and a step in the display panel A problem occurred. For example, a problem arises in that the screen of the display panel is not flat and is viewed as bumpy. This phenomenon may be referred to as a bumpy phenomenon or a wave phenomenon of a display panel (hereinafter, referred to as a "wave phenomenon"), and is not limited to the term. 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. Therefore, in order to reduce the wave phenomenon, the first partition 1700 can be arranged 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. Also, 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. Therefore, since the first partition 1700 is disposed along the shape of the display panel, when the display panel 100 is attached to the support member, pulling of the display panel 100 can be reduced, thereby preventing a wave phenomenon. .

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 with and interferes with the traveling wave so that it cannot proceed, and a standing wave that is stagnant at a certain position may be formed. The sound pressure is reduced by the standing wave, and thus the sound output characteristics may be reduced.

Since peaks and dips caused by standing waves cannot be controlled when the first partition 1700 is used, a structure for controlling peaks and dips caused by standing waves is configured in the first partition 1700. recognized that it had to be done. Here, the peak is a phenomenon in which sound pressure bounces at a specific frequency, and the dip is a phenomenon in which generation of a characteristic frequency is suppressed and low sound pressure is generated. The peak or dip phenomenon may degrade the sound output characteristics of the display device. This structure should be configured to be able to prevent a wave phenomenon and to easily control a peak or dip phenomenon caused by a standing wave. Therefore, in order to reduce peak and dip phenomena caused by standing waves generated in the vertical direction of the first and second sound generating devices 1300 and 1300', a pad can be configured in the first partition 1700. there is. Accordingly, it is possible to reduce a phenomenon of sound pressure reduction due to a standing wave generated by interference between a reflected wave and a traveling wave. In addition, many standing waves causing a decrease in sound pressure may be generated at points where the magnitudes of the traveling wave and the reflected wave are large. Accordingly, the pad can be disposed at a position where the sound wave arriving from the sound generating device is the largest. For example, pads may be formed on one or more sides of the first partition 1700 . The pad may be formed on one or more sides of the first partition 1700 on which the strongest sound wave arrives, and may be configured to face the first and second sound generating devices 1300 and 1300'. The partitions and pads disposed on the support member are described in FIGS. 8A to 11C , but are not limited thereto, and the same can be applied to the 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 due to pulling of the display panel 100 when the pad disposed on the support member is attached to the display panel 100 . Alternatively, when the pads disposed on the display panel 100 are 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 various experiments, the pad was implemented in the shape of a rectangle or a rectangle with rounded ends.

Referring to FIG. 8A , pads may be formed on at least one side of the first partition 1700 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 includes at least one first pad 811 and at least one seventh pad on the first side. 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 constitute at least one. The first side may be a horizontal direction of the display panel 100 or the support member 300, and the second side may be a vertical direction of the display panel 100 or the support member 300. Horizontal and vertical directions can be used interchangeably.

At least one second pad 812 may be disposed facing at least one first pad 811 . For example, at least one second pad 812 may be disposed on a side facing at least one first pad 811 . At least one second pad 812 may be disposed in the first region (L). At least one second pad 812 may consist of at least one.

At least one eighth pad 822 may be disposed facing at least one seventh pad 821 . For example, at least one eighth pad 822 may be disposed on a side facing 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 consist of at least one.

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

At least one first pad 811 and at least one second pad 812 may 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 generating device 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 area L, and the second sound generating device 812 is disposed in the second area R. A seventh pad 821 and an eighth pad 822 may be disposed to face the device 1300'. Therefore, the pads 811, 812, 821, and 822 can reduce a peak or dip phenomenon caused by standing waves generated in the vertical direction of the first and second sound generating devices 1300 and 1300', and the vibration is transmitted to the left and right. Therefore, 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 formed on the second side of the first partition 1700 . At least one third pad 813 , fourth pad 814 , ninth pad 823 , and 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 region (L), and the ninth pad 823 and the tenth pad 824 may be disposed in the second region (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 generating device 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 a position where the pad is disposed. When the adhesive strength of the first partition and the pad is the same, a wave phenomenon may occur because the display panel is further pulled at the position where the pad is disposed. For example, the pad may be made of a material capable of reducing pulling of the display panel 100 when the display panel 100 and the support member 300 are attached. The pad positioned inside the first partition 1700 may be made of a material capable of reducing tension when in contact with the display panel 100 . When the partition is made of a material different from that of the first partition 1700, the wave phenomenon may be reduced.

Accordingly, at least one first pad 811 may be formed of a material different from that of the first partition 1700 . The first partition 1700 may be composed of double-sided tape. In the case of the double-sided tape, it is disadvantageous to the wave phenomenon compared to the single-sided tape, but the adhesive strength between the display panel and the support member can be improved, and the sound quality can be improved. The at least one first pad 811 may be formed 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 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 be formed of a material different from that of the first partition 1700. At least one of the first partition 1700, the second partition 1700', and the third partition 1700" may be made of a different material. At least one second pad 812 may be made of the same material as that of at least one first pad 811 . At least one third pad 813 or at least one fourth pad 814 may be made of a material different from that of the first partition 1700 . At least one third pad 813 or at least one fourth pad 814 is made of a different material from at least one of the first partition 1700, the second partition 1700', and the third partition 1700". At least one third pad 813 or 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 double-sided foam pad. Double-sided The tape or the double-sided foam pad may be made of a foam material capable of absorbing impact upon contact with the display panel 100. If it is not made of a foam material, an unwanted noise may occur due to contact with the display panel 100. may appear. For example, it may be made of polyurethane, polyolefin, and polyethylene materials, but is not limited thereto. The second partition 1700' and the third partition (1700") can be made of the same material as the first partition (1700). When the display panel 100 and the support member 300 are made of the same material, adhesive strength can be improved.

At least one seventh pad 821 or at least one eighth pad 822 may be made of a material different from that of the first partition 1700 . At least one seventh pad 821 or 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". At least one seventh pad 821 or 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 ( 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 . At least one ninth pad 823 or 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". At least one ninth pad 823 or 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 made 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, and 824 are connected to the second partition 1700' or the third partition 1700". 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 shock upon contact with the display panel 100. If it is not made of a foam material, it may cause unwanted abnormalities 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 made of the same material and have different adhesive strength. Alternatively, it may be made of a different material and has a different adhesive strength, but is not limited thereto, in this case, the first to fourth pads 811, 812, 813, 814 in the first partition 1700 and When the seventh to tenth pads 821 , 822 , 823 , and 824 are attached to the display panel 100 and the support member 300 , pulling of the display panel 100 can be reduced, so that a wave phenomenon can be prevented. there is.

Therefore, by configuring one or more pads on at least one side of the partition and configuring the materials of the partition and the pad to be different 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 , descriptions of the same contents as those described in FIGS. 8A to 8C may be omitted and briefly described. For example, descriptions 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 using FIG. 9A as an example, and the description thereof can be equally applied to FIGS. 9B and 9C.

Referring to FIGS. 9A to 9C , in order to reduce a peak or dip phenomenon caused by standing waves generated in the vertical direction of the first and second sound generating devices, a pad may be formed on at least one side of the first partition 1700. there is. 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 formed on the 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 formed on the second side of the first partition 1700 . Since 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, detailed descriptions are provided herein. may be omitted or briefly described.

Referring to FIG. 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 the side facing the second side of the first partition 1700 in the first region L, and the second partition 1700' A fifth pad 815 and a sixth pad 816 may be disposed on one side of . For example, the eleventh pad 825 and the twelfth pad 826 are disposed on the side facing 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 fifth pad 815 and the sixth pad 816, the third pad 813 and the fourth pad 814 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 face the ninth pad 823 and the tenth pad 824. For example, the eleventh pad 925 and the twelfth pad 926 may be configured to face each other. 2 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 formed 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 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 be formed of a material different from that of the first partition 1700. At least one of the first partition 1700, the second partition 1700', and the third partition 1700" may be made of a different material. At least one second pad 812 may be made of the same material as that of at least one first pad 811 .

At least one third pad 813 or at least one fourth pad 814 may be made of a material different from that of the first partition 1700 . At least one third pad 813 or at least one fourth pad 814 is made of a different material from at least one of the first partition 1700, the second partition 1700', and the third partition 1700". At least one third pad 813 or 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 at least one fifth pad 816 may be made of a material different from that of the first partition 1700. At least one fifth pad 815 or at least one sixth pad 816 may be formed of a material different from that of the first partition 1700. 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 made of a material different from that of the first partition 1700 . At least one seventh pad 821 or 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". At least one seventh pad 821 or 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 ( 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 selected from among the first partition 1700, the second partition 1700', and the third partition 1700". It may consist of at least one other 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 . At least one 11th pad 825 or at least one twelfth pad 826 may be made of a material different from that of the first partition 1700 . At least one eleventh pad 825 or at least one twelfth pad 826 is made of a different material from at least one of the first partition 1700, the second partition 1700', and the third partition 1700". At least one eleventh pad 825 or 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, and 816 and the seventh to twelfth pads 821, 822, 823, 824, 825, and 826 are different from the first partition 1700. It can be made of material. The first to sixth pads 811, 812, 813, 814, 815, and 816 and the seventh to twelfth pads 821, 822, 823, 824, 825, and 826 form a 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, and 816 and the seventh to twelfth pads 821 , 822, 823, 824, 825, 826) may be composed of a single-sided tape The single-sided tape may be a foam material capable of absorbing shock when in contact with the display panel 100. Foam material Otherwise, unwanted noise may appear due to contact with the display panel 100. The single-sided tape may be made of, for example, polyurethane, polyolefin, or 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, 824, 825, 826) may be made of different materials, they may be the same material and have different adhesive strengths, or they may be different materials and materials with different adhesive strengths, but are not limited thereto. First to sixth pads 811, 812, 813, 814, 815, 816 in the first partition 1700 and the second partition 1700', and the first partition 1700 and the third partition 1700" When the seventh to twelfth pads 821, 822, 823, 824, 825, and 826 in ) are attached to the display panel 100 and the support member 300, the pulling of the display panel 100 can be reduced. , 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 a peak or dip phenomenon caused by a standing wave caused by interference between a reflected wave and a traveling wave. , sound quality deterioration due to standing waves or reflected waves can be further prevented. Therefore, the wave phenomenon can be reduced by configuring the materials of the partition and the pad differently, and since the peak and dip phenomena caused by the standing wave can be further reduced by the pad, 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.

In FIGS. 10A to 10C , descriptions of the same contents as those described in FIGS. 8A to 8C may be omitted and briefly described. For example, descriptions of the sound generating device and the pad may be omitted or briefly described. The description of the partition, the pad, and the member is described using FIG. 10A as an example, and the description thereof may be equally applied to FIGS. 10B and 10C.

Referring to FIGS. 10A to 10C , in order to reduce a peak or dip phenomenon caused by standing waves generated in the vertical direction of the first and second sound generating devices, 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 formed on the 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 formed on the second side of the first partition 1700 . Since 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, detailed descriptions are provided herein. may be omitted or briefly described.

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 of 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 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 The second member 912 may be disposed in the horizontal direction of the display panel 100 or the support member 300. The third member 913 and the fourth member 914 are the display panel 100 or the support member 300. The first member 911 and the second member 912 prevent the vibration generated from the first sound generating device 1300 from passing through the second partition 1700'. The third member 913 and the fourth member 914 can prevent vibration generated from the second sound generating device 1300' from passing through the third partition 1700". . Therefore, in the first member 911 to the fourth member 914, waves or vibrations between the second partition 1700' and the third partition 1700" are 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 more improved sound output characteristics.

The first member 911 and the second member 912 may be disposed symmetrically or asymmetrically with respect to the first sound generating device 1300 . For example, based on the first sound generating device 1300, the first member 911 or the second member 912 may be disposed above or below the third member 913 or the fourth member 914. there is. 10A shows 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. One or more of the first member 911 and the third member 913 are not limited thereto. 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 symmetrically arranged with respect to the first sound generating device 1300 . For example, based on the first sound generating device 1300, the first member 911 and the third member 913 may be disposed on the same line as the first sound generating device 1300. As another example, based on the second sound generating device 1300', the first member 911 and the third member 913 may be disposed on the same line as the second sound generating device 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 arranged with respect to the first sound generating device 1300 . For example, based on the first sound generating device 1300, the first member 911 is disposed above 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, based on the second sound generating device 1300', the first member 911 is disposed above the second sound generating device 1300', and the third member 913 is the second sound generating device ( 1300') can be placed below.

The first member 911 to the fourth member 914 may be composed 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 813 are formed. When made of a material different from that of the pad 824 , a wave phenomenon may occur due to different adhesive force upon 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 abnormal noise 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 made 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 composed of single-sided tapes. The single-sided tape may be a foam material capable of absorbing impact upon contact with the display panel 100 . It was found that when the material was not made of foam, an unwanted 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 shape of the first pad 811 to the fourth pad 814, the shape of the seventh pad 821 to the tenth pad 824, and the shape of the first member 911 to the fourth member 914 are rectangles. Alternatively, it may be a rectangle with a rounded end, but 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 phenomena caused by standing waves can be reduced, thereby improving the sound output characteristics. can make it In addition, since the partition and the pad are made of different materials, it is possible to reduce the wave phenomenon and prevent the occurrence of abnormal sounds, thereby improving sound output characteristics. 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.

In FIGS. 11A to 11C , descriptions of the same contents as those described in FIGS. 8A to 10C may be omitted and briefly described. For example, descriptions of the sound generating device and the pad may be omitted or briefly described. A description of the partition, pad, and member is described using FIG. 11A as an example, and the description thereof may be equally applied to FIGS. 11B and 11C.

Referring to FIGS. 11A to 11C , in order to reduce a peak or dip phenomenon caused by standing waves generated in the vertical direction of the first and second sound generating devices, 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 formed on the 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 formed on the second side of the first partition 1700 . Since 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, detailed descriptions are provided herein. may be omitted or briefly described.

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

At least one fifth pad 815 or at least one fifth pad 816 may be made of a material different from that of the first partition 1700 . At least one fifth pad 815 or 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". At least one fifth pad 815 or at least one sixth pad 816 may be made of the same material as the at least one first pad 811 .

At least one 11th pad 825 or at least one twelfth pad 826 may be made of a material different from that of the first partition 1700 . At least one eleventh pad 825 or at least one twelfth pad 826 is made of a different material from at least one of the first partition 1700, the second partition 1700', and the third partition 1700". At least one eleventh pad 825 or 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, and 816 and the seventh to twelfth pads 821, 822, 823, 824, 825, and 826 are different from the first partition 1700. It can be made of material. The first to sixth pads 811, 812, 813, 814, 815, and 816 and the seventh to twelfth pads 821, 822, 823, 824, 825, and 826 form a 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, and 816 and the seventh to twelfth pads 821 , 822, 823, 824, 825, 826) may be composed of a single-sided tape The single-sided tape may be a foam material capable of absorbing shock when in contact with the display panel 100. Foam material Otherwise, unwanted noise may appear due to contact with the display panel 100. The single-sided tape may be made of, for example, polyurethane, polyolefin, or 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, 824, 825, 826) may be made of different materials, they may be the same material and have different adhesive strengths, or they may be different materials and materials with different adhesive strengths, but are not limited thereto. First to sixth pads 811, 812, 813, 814, 815, 816 in the first partition 1700 and the second partition 1700', and the first partition 1700 and the third partition 1700" When the seventh to twelfth pads 821, 822, 823, 824, 825, and 826 in ) are attached to the display panel 100 and the support member 300, the pulling of the display panel 100 can be reduced. , 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″. The first to fourth members are described in FIG. 10A. Since it is the same as the content described in FIGS. 10C to 10C , detailed description is omitted here.

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 phenomena caused by standing waves can be reduced, thereby improving the sound output characteristics. can make it In addition, since the partition and the pad are made of different materials, it is possible to reduce the wave phenomenon and prevent the occurrence of abnormal sounds, thereby improving sound output characteristics. And, by further configuring the member, it is possible to further improve the sound output characteristics.

A sound generating device according to an embodiment of the present specification can be applied to a sound generating device disposed in a display device. The display device according to the embodiment of the present specification is a mobile device, a video phone, a smart watch, a watch phone, a wearable device, a foldable device, and a rollable device. apparatus), bendable apparatus, flexible apparatus, curved apparatus, electronic notebook, electronic 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, television, wallpaper device, Shinage ( signage) devices, game devices, notebooks, monitors, cameras, camcorders, and home appliances. In addition, 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, a support member disposed on a rear surface of the display panel and supporting the display panel, and a sound generated by vibrating the display panel. At least one sound generating device, and a connection portion connecting the support member and the at least one sound generating device, wherein the at least one sound generating device includes a plate disposed 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, a coupling member disposed below the support member and coupling the sound generating device and the support member may be further included, and 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 connection unit may be disposed between the coupling member and the lower portion of the frame.

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

According to some embodiments of the present specification, the connection unit 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 generating device further includes a damper between the frame and the bobbin, and the at least one sound generating device includes a plate, a magnet, a center pole, a bobbin, a coil, a frame, and a damper. As a result, a sound may be generated by vibrating the display panel.

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

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

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

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

According to some embodiments of the present specification, 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, and a partition 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 a first region and disposed on a first side, and at least one second pad disposed on a side facing the at least one first pad and, at least one first pad or 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, it is disposed in the first region and further includes at least one third pad or at least one fourth pad disposed on a second side, and includes at least one third pad or at least one fourth pad. 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 facing the at least one eighth pad At least one seventh pad or 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, the at least one ninth pad or at least one tenth pad disposed in the second region and disposed on the second side may further include, and the at least one ninth pad or at least one tenth pad may be further included. 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 made 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 region and disposed on one side of the second partition, further including 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, the second region further includes at least one 11th pad or at least one twelfth pad disposed on one side of the third partition, and the at least one 11th 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, it is disposed in the third region and further includes at least one first member or at least one second member disposed on one side of the second partition, and 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, it is disposed in the third region and further includes at least one third member or at least one fourth member disposed on one side of the third partition, and includes 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 may be variously modified and implemented without departing from the technical spirit of the present specification. . Therefore, the embodiments disclosed in this specification are not intended to limit the technical spirit of the present specification, but to explain, 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 this specification should be construed by the scope of the claims, and all technical ideas within the equivalent range should be construed as being included in the scope of rights of this 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: Pads
911, 912, 913, 914: absent
700, 1700, 1700', 1700": partition

Claims (19)

a display panel 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 connecting portion connected to the at least one sound generating device; and
It is disposed on the rear surface of the support member and includes a coupling member connected to the connection portion,
The at least one sound generating device,
a plate spaced apart from the support member;
a frame outside 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 connection parts spaced apart from each other with an air gap interposed between the support member and the frame and connected to the frame; and
A second connection portion connected to the rear surface of the support member by the coupling member and connected to the plurality of first connection portions,
The plurality of first connection parts are bent in a curved shape between the frame and the second connection part,
The length of each of the plurality of first connection parts disposed between the frame and the second connection part is greater than the distance between the frame and the second connection part,
The display device, wherein the frame, the plurality of first connection parts, and the second connection parts are integrally formed. According to claim 1,
The second connection part is disposed outside the frame along the shape of the frame. According to claim 1,
The plurality of first connection parts are disposed on the same plane between the frame and the second connection part. a display panel 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
A coupling member disposed on a 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 outside the plate;
a magnet disposed on the plate;
a bobbin around the magnet;
a coil outside the bobbin;
a plurality of first connection parts spaced apart from each other with an air gap interposed between the support member and the frame and connected to the frame; and
A second connection portion connected to the rear surface of the support member by the coupling member and connected to the plurality of first connection portions,
The plurality of first connection parts are bent in a curved shape between the frame and the second connection part,
The length of each of the plurality of first connection parts disposed between the frame and the second connection part is greater than the distance between the frame and the second connection part,
The display device, wherein the frame, the plurality of first connection parts, and the second connection parts are integrally formed. According to claim 4,
The second connection part is disposed outside the frame along the shape of the frame. According to claim 4,
The plurality of first connection parts are disposed on the same plane between the frame and the second connection part. 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 connecting portion connected to the at least one sound generating device; and
Includes a coupling member for connecting the connecting portion to the rear surface of the support member,
The at least one sound generating device generates sound by vibrating the display panel;
The at least one sound generating device,
a plate spaced apart from the support member;
a frame outside 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 connection parts spaced apart from each other with an air gap interposed between the support member and the frame and connected to the frame; and
A second connection portion connected to the rear surface of the support member by the coupling member and connected to the plurality of first connection portions,
The plurality of first connection parts are bent in a curved shape between the frame and the second connection part,
The length of each of the plurality of first connection parts disposed between the frame and the second connection part is greater than the distance between the frame and the second connection part,
The display device, wherein the frame, the plurality of first connection parts, and the second connection parts are integrally formed. According to claim 7,
The second connection part is disposed outside the frame along the shape of the frame. According to claim 7,
The plurality of first connection parts are disposed on the same plane between the frame and the second connection part. According to any one of claims 7 to 9,
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
The display device further comprises a third partition between the second area and the third area. According to claim 10,
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 pad disposed on at least one of the first partition and the third partition in the second area. A display device further comprising at least one of the second pads. According to claim 11,
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. According to claim 11,
Further comprising at least one member disposed on at least one of the second partition and the third partition in the third region,
The at least one member is made of the same material as the first pad or the second pad. According to any one of claims 1 to 9,
The plurality of first connection parts vibrate together with the frame. delete According to any one of claims 1 to 9,
Each of the plurality of first connection parts is made of a metal material deformable according to the vibration of the frame. According to any one of claims 1 to 9,
The connection part is made of a plastic material, the display device. According to any one of claims 1 to 9,
The coupling member includes a nut and a screw, and the plurality of first connection parts are between the screw and the frame, the display device. delete

Images