KR20200050913A - Display apparatus - Google Patents

Abstract

The present invention provides a display apparatus capable of improving a sound output property in a low-sound range. According to embodiments of the present invention, the display apparatus comprises: a display panel to display an image; a support member arranged on the rear surface of the display panel; at least one sound generation device arranged on the rear surface of the display panel; and a connection unit to connect the support member and the at least one sound generation device. The at least one sound generation device includes: a plate separated from the support member to be arranged; a frame on the outside of the plate; a magnet and a center pole arranged on the plate; a bobbin around the center pole; a damper between the frame and the bobbin; and a coil on the outside of the bobbin. The connection unit is arranged between the support member and the frame, is deformed by vibration of the at least one sound generation device, and vibrates with the at least one sound generation device to vibrate the display panel to generate a sound to 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 the display panel.

With the recent advent of the information age, the display field for visually expressing electrical information signals has rapidly developed, and in response, various display devices having excellent performances such as thinning, lightening, and low power consumption (Display Apparatus) Is being developed.

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

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

In addition, the organic light emitting display device is a self-luminous device, and has an advantage in that the response speed is faster and the light emission efficiency, luminance, and viewing angle are greater than other display devices.

The display device may include a display panel for displaying an image and a sound device for outputting sound together with the image. In such a display device, sound generated through the sound device proceeds to the back of the display panel or the bottom of the display panel, not the front of the display panel. Thereby, there is a problem that sound quality is deteriorated due to interference with sound reflected from the wall or the floor. Therefore, it is difficult to provide clear sound from the sound device without disturbing the immersion of the user.

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

Accordingly, the inventor of the present specification recognizes the above-mentioned problems, and when viewing an image from the front of the display panel, the direction of the sound may be the front of the display panel, and various experiments may be performed to improve the sound quality. . Through various experiments, a display device having a new structure capable of generating sound and improving the sound quality of the sound was invented so that the direction of sound progresses to the front of the display panel.

A problem according to an embodiment of the present disclosure is to provide a display device including a sound generating device capable of generating sound so that the direction of sound is directed to the front of the display panel, and improving the sound output characteristics of the low-pitched tone band. will be.

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

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

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

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

The display device according to the exemplary embodiment of the present specification can generate a sound such that the direction in which the sound of the display device proceeds toward the front of the display panel by configuring the sound generating device to generate sound by vibrating the display panel. Therefore, it is possible to improve the immersive feeling of the viewer who views the image of the display device.

In addition, since the display device according to the exemplary 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, and thus the degree of freedom for designing the set device and disposing the speaker can be improved. have.

In addition, the display device according to the exemplary embodiment of the present specification can provide a display device capable of improving sound output characteristics in a low-frequency range by disposing the support member and the sound generating device spaced apart.

In addition, the display device according to the embodiment of the present disclosure is arranged to be spaced apart from the support member and the sound generating device, and by configuring a connection portion between the support member and the sound generating device, a display capable of improving sound output characteristics in a low range Device can be provided.

In addition, since the display device according to the exemplary embodiment of the present disclosure comprises at least one pad on at least one side of a partition and a partition, peak and deep phenomena caused by standing waves can be reduced, so that sound output characteristics can be improved.

In addition, the display device according to the exemplary embodiment of the present specification may reduce at least one pad on at least one side of the partition and at least one member on at least one side of the partition, thereby reducing the wave phenomenon of the display panel. , It is possible to provide a display device with improved sound output characteristics.

In addition, since the display device according to the exemplary embodiment of the present disclosure constitutes a partition between at least one sound generating device disposed on the display panel, sound can be separated by the partition, thereby realizing stereo sound, and outputting sound. It is possible to provide a display device whose characteristics can be improved.

In addition, the display device according to the exemplary embodiment of the present disclosure comprises a partition, at least one pad on at least one side of the partition, and at least one member, and at least one material of the partition, pad, and member is formed of another material. By doing so, the wave phenomenon of the display panel can be reduced.

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

The subject matter to be solved above, the problem solving means, and the contents of the invention described in the effects do not specify the essential features of the claims, so the scope of the claims is not limited by the contents described in the contents of the invention.

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

Advantages and features of the present specification, and a method of achieving them will be apparent with reference to embodiments described below in detail together with the accompanying drawings. However, the present specification is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the embodiments allow the disclosure of the present specification to be complete, and have ordinary knowledge in the technical field to which the present specification belongs. It is provided to fully inform the holder 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 describing the embodiments of the present specification are exemplary, and the present specification is not limited to the illustrated matters. The same reference numerals refer to the same components throughout the specification. In addition, in the description of the present specification, when it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present specification, the detailed description will be omitted. When "include", "have", "consist of" and the like referred to herein are used, other parts may be added unless "only" is used. When a component is expressed as a singular number, the plural number is included unless otherwise specified.

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

In the case of the description of the positional relationship, when the positional relationship of the two parts is described as "upper", "upper", "lower", "next", etc., for example, "directly" or "directly" Unless this is used, one or more other parts may be located between the two parts.

When the temporal relationship is described, for example, “after”, “following”, “after”, “before”, etc., the “directly” or “directly” is not used when the temporal sequential relationship is described. It may also include cases that are not ideally continuous.

The first, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are only used to distinguish one component from another component. Therefore, the first component mentioned below may 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 for distinguishing the component from other components, and the essence, order, order, or number of the component is not limited by the term. When a component is described as being "connected", "coupled" or "connected" to another component, that component may be directly connected to, or connected to, other components, but indirectly, without specifically stated. It should be understood that other components may be " interposed " between each component that may or may not be connected.

It should be understood that “at least one” includes all combinations of one or more of the associated components. For example, the meaning of "at least one of the first, second, and third components" means two of the first, second, and third components, as well as the first, second, or third components. It can be said to include a combination of all the components of more than one.

Each feature of various embodiments of the present specification may be partially or totally combined or combined with each other, technically various interlocking and driving may be possible, and each of the embodiments may be independently implemented with respect to each other or may be implemented together in an associative relationship. It might be.

In the present specification, the “display device” may include a display device such as a liquid crystal module (LCM) and an organic light emitting display module (OLED module) including a display panel and a driver for driving the display panel. In addition, a complete product (complete product or final product) including an LCM, an OLED module, a laptop computer, a television, a computer monitor, an automotive device, or an electronic device, or other form of a vehicle, etc. apparatus, a set electronic apparatus such as a mobile electronic apparatus such as a smartphone or an electronic pad, or a set device or a set apparatus.

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

In addition, in some examples, LCM and OLED modules composed of a display panel and a driving unit may be expressed as a "display device", and electronic devices as finished products including LCM and OLED modules may be separately 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 as a control unit for driving the display panel, and the set device is electrically connected to the source PCB to cover the entire set device. It may be a concept that further includes a set PCB that is a set control unit to control.

The display panel used in this embodiment may be any 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 this 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 in a crossing region of the gate lines and the data lines. Then, an array substrate including a thin film transistor which is a switching element for controlling light transmittance in each pixel, an upper substrate provided with a color filter and / or black matrix, and a liquid crystal layer formed between the array substrate and the upper substrate. It may be configured to include.

In addition, when the display panel is an organic light emitting (OLED) display panel, it may include a plurality of gate lines and data lines, and pixels formed in an intersection region of the gate lines and the data lines. Then, an array substrate including a thin film transistor which is a device for selectively applying voltage to each pixel, an organic light emitting device (OLED) layer on the array substrate, and an encapsulation substrate disposed on the array substrate to cover the organic light emitting device layer Or it may be configured to include an encapsulation (Encapsulation) substrate. The encapsulation substrate protects the thin film transistor and the organic light emitting device layer from external impact, and prevents moisture or oxygen from penetrating the organic light emitting device layer. 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 emission layer. Another example may include a micro light emitting diode.

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

In this specification, the display panel including the 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 two front seats so that vibration of the display panel propagates toward the interior of the vehicle. Thus, the audio experience in the vehicle can be improved compared to having a speaker only on the interior sides of the vehicle.

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

1A is a view showing a display device including an acoustic generator according to an embodiment of the present disclosure.

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

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

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

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

1B is a cross-sectional view taken along line I-I 'of FIG. 1A.

Referring to FIG. 1B, the display device may include an acoustic generator 200 and a support member 300.

The supporting member 300 may support one or more of a rear surface or a side surface of the display panel 100. Then, the sound generating device 200 may be fixed to the support member 300.

In the present specification, the support member 300 may be, for example, a cover bottom. Alternatively, a middle cabinet that surrounds the side of the display panel 100 and is coupled to the cover bottom and accommodates one edge of the display panel 100 to support the display panel 100 may further include a middle cabinet. For example, the middle cabinet may have a “┤” shaped cross section (or T-shaped shaped with 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.

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

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

And, in the present specification, the support member 300 is a cover bottom, a plate bottom, a back cover, a base frame, a metal frame, and a metal chassis. Chassis, Chassis Base, m-chassis, and other expressions. Therefore, as a support for supporting the display panel 100, it may include any type of frame or plate-like structure disposed on the rear surface of the display device.

In addition, the adhesive member 400 may be disposed on the edges 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 back surface of the display panel 100 and the top 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 an acoustic generating device according to an embodiment of the present specification.

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

2A shows the first structure, and FIG. 2B shows the second structure.

Referring to Figure 2a, the acoustic generator 200 is a plate (210, 210 '), a magnet 220 on the plate, a center pole 230 on the plate, a bobbin disposed around the center pole 230 250, and a coil 260 wound around the bobbin 250, and the like.

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

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

The magnet 220 can use a sintered magnet such as barium ferrite, and the materials are ferric trioxide (Fe ₂ O ₃ ), barium carbonate (BaCO ₃ ), neodymium (Nd) magnet, and strontium with improved magnetic components Ferrite (Fe ₁₂ O ₁₉ Sr), aluminum (Al), nickel (Ni), alloy casting magnets such as cobalt (Co) and the like can 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 periphery of the first plate 210. The center pole 230 may be disposed in the central region of the first plate 210. The center pole 230 and the first plate 210 may be integrally formed. The center pole 230 may 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 around the center pole 230. The coil 260 is wound on a lower outer region of the bobbin 250, for example, a lower outer surface, and a current for generating sound is applied to the coil 260. The bobbin 250 may be an annular structure formed of paper or aluminum sheet. The coil 260 may be wound around a certain area under the bobbin 250. The bobbin 250 and the coil 260 may be combined to be expressed as a voice coil. The damper 270 may be disposed between the frame 240 and a portion of the upper portion of the bobbin 250. The damper may be expressed in other terms such as edge.

2B is a view showing a second structure in which the magnet is disposed inside the coil.

Referring to FIG. 2B, the second structure sound generating display device 200 ′ includes a magnet 220 on the first plate 210, a center pole 230 on the magnet 220, and a magnet 220. It may include 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 having an inner magnetic shape has an advantage that the leakage flux is small and the overall size can be reduced. The sound generating device used in the display device according to the embodiment of the present specification is not limited to the structures shown in FIGS. 2A and 2B. Other types of sound generating devices that can generate sound by vibrating the display panel or directly vibrating the display panel may be used.

3A and 3B are diagrams for explaining the 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 a current is applied.

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

In this state, when a current for generating sound 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 an external magnetic field. For example, when a current is applied to the coil 260, a magnetic field is formed around the coil 260, and since an external magnetic field is formed by the magnet 220, the entire bobbin 250 is centered according to Fleming's left-hand rule. Guided by (230) can be moved upward.

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 upwards (indicated by an arrow) according to current application and non-application of the coil 260. Vibration, and sound waves (or sound) are generated by the vibration. When the current application is stopped in this state or the current in the opposite direction is applied, a force is generated to move the bobbin 250 downward according to a similar principle described in FIG. 3A, as shown in FIG. 3B, and the display panel 100 ) Vibrates in the downward direction (indicated by arrows).

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

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

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

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

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

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

In the embodiment of the present specification, all of the acoustic generators 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 acoustic generator 200 may include an enlarged portion 614. The enlarged diameter portion 614 may be integrally formed with the first plate 210. One side of the first plate 210 may have a protrusion larger than the diameter of the rest of the first plate 210. The area of the protruding portion having a larger diameter may be expressed as the enlarged portion 614. The enlarged diameter portion 614 may have an illusion. An extension portion 612 for fixing the sound generating device 200 may be formed in a part of the enlarged diameter portion 614.

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

When using a self-clinching nut, since the vibration generated by the acoustic generator 200 may be partially absorbed by the nut 330, the vibration transmitted to the support member 300 Can be reduced.

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 vertically (indicated by V1). In addition, since the first plate 220 and the support member 300 are fixed with screws 320, the stiffness of the sound generating device 200 may be increased. Due to this, even if the resonance frequency of the acoustic generator 200 is lowered, since the first plate 220 and the support member 300 are fixed, it was recognized that the low-frequency band output from the acoustic generator 200 cannot be lowered. . Accordingly, the inventor has invented a new structured sound generating device capable of lowering the resonance frequency of the sound generating device and improving the low-frequency range through various experiments. This will be described with reference to FIGS. 6 and 7.

6A and 6B are views illustrating an acoustic generator according to another embodiment of the present specification.

In the embodiment of the present specification, all of the acoustic generators 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 an acoustic generator according to another embodiment of the present specification, and FIG. 6B is a rear view of the acoustic generator according to another embodiment of the present specification.

Referring to Figure 6a, the acoustic generator 1300 according to the embodiment of the present specification is a magnet 1220 on the plate 1210, a center pole 1230 on the magnet 1220, the magnet 1220 and It may include a bobbin 1250 disposed around the center pole 1230, and a coil 1260 wound around the bobbin 1250.

For example, the magnet 1220 may be disposed on the plate 1210, and the center pole 1230 may be disposed on the magnet 1220. The center pole 1230 may 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 in other terms such as an edge, and is not limited to the term. The plate 1210 may be expressed in other terms such as a yoke, and is not limited to the terms.

The display panel 100 may be attached to the bobbin 1250 of the sound generating device 1300 through the first adhesive member. The first adhesive member may be a double-sided tape, a single-sided tape, an adhesive, and / or a bond, but is not limited thereto. The first adhesive member may be formed on 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 acoustic generator 1300 vibrates, a heat radiating 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 through the second adhesive member. For example, the heat dissipation member may be disposed between the first adhesive member and the back 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 disc shape having a constant thickness, but is not limited thereto. no. For example, the heat dissipation member may be a heat dissipation sheet or 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. Therefore, since the heat dissipation member is configured, the influence on the image quality of the display panel due to heat generated during vibration of the sound generating device can be reduced.

As described in FIG. 5, since the support member and the plate are connected by screws, it was recognized that the plate should be a structure that is not fixed to the support member in order to solve the problem of increasing the rigidity of the sound generating device. In order for the sound generating device to be fixed to the support member, several experiments were conducted on the method of lowering the rigidity without the plate being fixed to the support member. Through various experiments, it was recognized that the plate is not fixed by the support member and the screw, and that the sound generating device should be structured to be fixed to the support member. For example, the plate may be arranged to be spaced apart from the support member, and the structure may be configured between the support member and the sound generator so that the sound generator is fixed to the support member. 6A and 6B, the plate 1210 and the support member 300 of the sound generating device 1300 may be spaced apart, and the structure disposed between the plate 1210 and the support member 300 may be , For example, may be a connection part 1280. The connection part 1280 may be metal or plastic, but is not limited thereto. For example, the connection part 1280 may give elasticity to the plate 1210 to lower the stiffness, and lower the resonant frequency to improve the sound of the low frequency range of the sound generating device 1300. This will be described with reference to Equation 1 below. The resonance frequency f ₀ of the vibration generated in the acoustic generator 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, the acoustic generator 1300 can reduce the resonance frequency by reducing the stiffness (k) of the object or increasing the mass (m) according to Equation 1, thereby improving the sound in the low range. . Since the connection unit 1280 lowers the stiffness of the acoustic generator 1300 to lower the resonance frequency, the acoustic of the acoustic generator 1300 can be improved. As another example, the acoustic generator 1300 may reduce the resonant frequency by reducing the mass (m) of the object and at the same time reducing the stiffness (k) of the object by more than the increase rate of the mass (m).

A coupling member 1310 may be disposed under the support member 300. The coupling member 1310 may include a screw 1320 and a nut 1330. The nut 1330 may be, for example, a self-clinching nut. One example of the self-clinching nut may be a PEM nut, and 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 combined by a coupling member 1310. The connection part 1280 may be connected to the screw 1320.

Referring to Figure 6a, the connecting portion 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 outer edge of the lower portion of the frame 1240 to the screw 1320. Therefore, the connection unit 1280 can stably support the plate 1210 surrounded by the frame 1240, and give elasticity to the plate 1210 to lower the rigidity of the sound generating device 1300.

The frame 1240 may have a circle, a rectangle, and a rectangle with rounded corners, but is not limited to this shape. When the frame 1240 is a square or a square with rounded corners, the bottom of the frame 1240 may have a rectangle with four corners or a rectangle with rounded corners, and the connection portion 1280 includes screws 1320 and a frame 1240. ) May be disposed between each of the corners. For example, the connecting portion 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 along the shape of the frame 1240, and the connection part 1280 disposed around the frame 1240 may include screws 1320 in the frame 1240. It can be placed between. For example, when the frame 1240 is a square or a square with a rounded corner, the connection unit 1280 may be disposed around the frame 1240 along a square or a square with a rounded corner of the frame 1240, and the frame ( The connection portion 1280 disposed around the 1240 may be disposed between the screws 1320 at each of the four corners of the frame 1240. The connection portion 1280 may be disposed on the outer side of the frame 1240 along the shape of the frame 1240, and the connection portion 1280 disposed on the outer side of the frame 1240 may include screws 1320 in the frame 1240. It can be placed between. For example, when the frame 1240 is a square or a square with rounded corners, the connection unit 1280 may be disposed on the outer side of the frame 1240 along the square of the frame 1240 or a rounded square. The connection part 1280 disposed on the outer side of 1240 may be disposed between the screws 1320 at each of the four corners of the frame 1240. Without being limited to this, the connecting portion 1280 may be disposed in a portion other than the edge of the frame 1240. . For example, when the frame 1240 is a square or a square 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 is circular, the connection part 1280 may be disposed between the frame 1240 and the coupling member 1310, and the connection part 1280 may include the frame 1240 and the coupling member 1310. Any location in between may be possible. The connecting portion 1280 disposed between each of the four corners of the frame 1240 and the screw 1320 and the connecting portion 1280 disposed on the outer side of the frame 1240 may be integrally configured. For example, the connecting portion 1280 disposed between each of the four corners of the frame 1240 and the screw 1320 and the connecting portion 1280 disposed on the outer side of the frame 1240 may be integrally configured through a laser process. have. Without being limited to this, the connection part 1280 may be configured in the form of a punch using a laser, etching, and a mold. Therefore, by forming a plurality of connecting portions 1280, it is possible to complement each other with the support force for the frame 1240, and stably support the plate 1210 surrounded by the frame 1240, so as to be elastic to the plate 1210 And lower the stiffness of the sound generating device 1300.

Referring to FIG. 6A, a partition 700 may be disposed between the support member 300 and the display panel 100. The partition 700 may be an air gap or space in which sound is generated when the display panel 100 vibrates. Compared to FIG. 5, the vibration of the sound generating device 1300 can vibrate (display V2) the entire sound generating device 1300, so that the sound output characteristics of the sound generating device 1300 can be further improved. have. For example, the sound generator 1300 is displayed 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, the sound output characteristics can be further improved, and a display device with improved sound output characteristics in a low frequency range can be provided.

7 is a view showing the sound output characteristics according to an embodiment of the present specification.

In FIG. 7, the dotted line is the sound output characteristic of the sound generator of FIG. 5, and the solid line shows the sound output characteristic of the sound generator of FIG. In addition, 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 improves sound pressure in a region of 200 Hz or less, which is a low-frequency band, than in the case of a dotted line. For example, it can be seen that at a frequency of 100 Hz, the sound pressure of the dotted line is 60 dB, and the sound pressure of the sound generating device according to the embodiment of the present specification is 75 dB, so that the sound pressure of about 15 dB is improved. Therefore, it can be seen that the sound generating device according to the embodiment of the present specification improves the sound pressure of the low 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, which is a mid-range. The middle range may be 200 Hz to 3 kHz, the high range may be 3 kHz or more, and the low range may be 200 Hz or less, but is not limited to this range.

8A to 8C are views showing an embodiment of an acoustic generating device and a partition according to an embodiment of the present specification.

8A to 8C, the display panel 100 may include a first region L, a second region R, and a third region C. The first region L is a left region of the rear surface of the display panel 100, the second region R is a right region of the rear surface of the display panel 100, and the third region C is a display region of the display panel 100. It may be the central area of the back. The left area and the right area can be compatible with each other, and for convenience, description will be made with the contents indicated 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 area L of the rear surface of the display panel 100, and the second sound generating device 1300 'may be rear of the display panel 100. It may be disposed in the second region (R). The at least one sound generating device may include a shape of one of a circular shape and an elliptical shape, or may include a pair of sound generating apparatuses. 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-mid-range 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 area L of the rear surface of the display panel 100, and the second sound generating device 1300 'is the rear surface of the display panel 100. It is arranged in the second region R. 6A and 6B, the first sound generating device 1300 and the second sound generating device 1300 ′ may be coupled to the support member 300.

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

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 with reference to FIGS. 6A and 6B, the description is omitted here. In FIG. 8B, the first acoustic generator 1900 and the second acoustic generator 1900 'may be configured as elliptical acoustic generators. As the oval sound generating device, the sound generating device described in FIGS. 6A and 6B may be applied, and the shape of the bobbin may be configured in an oval shape. When the elliptical sound generating device is applied, the sound output characteristics of the middle and high frequencies can be further improved. The coupling structure between the first and second sound generating devices 1900 and 1900 'and the supporting member may be applied to the contents described with reference to FIGS. 6A and 6B.

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

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

8A to 8C, the first partition 1700 may be disposed between the display panel and the support member 300. For example, the first partition 1700 may be disposed between the back surface of the display panel and the top 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 on the edge of the display panel. For example, the first partition 1700 may be disposed on an edge of the rear surface of the display panel. The first partition 1700 may be a rear surface of the display panel or an entire area of the support member. The first partition 1700 may be the entire area of the back side of the display panel or the four sides of the outer side 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 generator 1300 and the second sound generator 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. Partition 1700 "may be disposed.

The first partition 1700, the second partition 1700 ', and the third partition 1700 "are sound when the display panel 100 vibrates by the first and second sound generating devices 1300 and 1300'. This may be an air gap or space in which the air gap or space that generates or transmits sound can be referred to as a partition, which is called an enclosure or 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. It might be.

Each of the first partition 1700, the second partition 1700 ', and the third partition 1700 "blocks first and second sounds by blocking sound leakage through each side of the display panel 100. Since the sound from the generators 1300 and 1300 'can be output only to the front of the display panel 100, the 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 first partition 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. 8A to 11C, the first partition 1700, the second partition 1700 ′, and the third partition 1700 ″ will be described as an example of being disposed on the support member 300.

The second partition 1700 ′ and the third partition 1700 ″ may separate left and right sounds generated by the first sound generator 1300 and the second sound generator 1300 ′. The second partition 1700 ') And the vibration of the display panel 100 in the space or air gap that can be defined by the third partition 1700 "is attenuated or absorbed in the center of the display panel 100, and thus left It is possible to block the transmission of sound from the area to the space in the right area. Accordingly, since the display device according to the exemplary 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. The first sound generating device 1300 and the second sound generating device 1300 'may output different low and mid-high range sounds, stereo sound by left and right sound separation, and 2.1 channel type sound output A display device having characteristics can be provided.

It is composed of a first sound generating device 1300 in the first area L in the left area and a second sound generating device 1300 'in the second area R in the right area, and a third area C in the central area (C). ) May not constitute an acoustic generator. Due to this, it is possible to reduce sound quality deterioration due to interference in the left and right regions. And, there is an effect that can further improve the acoustic characteristics of the middle and high range. In addition, the area of the third area C may be smaller than the area of the first area L and the area of the second area R. When configured in this way, it is possible to improve the sound of the low range. Also, the third region C may 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 of the low-mid-high range. In addition, the descriptions of the first partition 1700, the second partition 1700 ', and the third partition 1700 "may be equally applied to FIGS. 8B to 11C.

8A to 11C, the first partition 1700 may be the adhesive member described in FIG. 1. In addition, an adhesive member for adhering 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 on the edge of the display panel or the edge of the support member.

8A to 11C, the sound generating device is not positioned 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 in a left area or right area. It shows what was done. However, the present invention is not limited thereto, and the sound generating device may be disposed at the center of the left region, which is the first region L, or the right region, which is the second region R of the display panel 100. Alternatively, the sound generating device may be arranged asymmetrically in the first area L and the second area R of the display panel. When the sound generating device is positioned in the center of the left area, which is the first area (L) of the display panel 100, or the center of the right area, which is the second area (R), the sound generating device is positioned in a position that is biased toward the left area or the right area. The acoustic characteristics can be further improved.

Between the first sound generating device 1300 and the second sound generating device 1300 'may be configured as a partition such as a double structure including two or more partitions. For example, when a mono sound is implemented that outputs the same sound in the left and right regions, the left and right regions of the display panel have the same vibration characteristics, so that a resonance or interference phenomenon is maximized in a certain frequency band, resulting in a decrease in sound pressure. have. Therefore, the difference between the resonance frequencies of the middle and high sounds generated in the first sound generating device 1300 of the first area L in the left area and the second sound generating device 1300 'in the second area R in the right area. In order to reduce the influence of the acoustic characteristics due to it can be configured as a structure including two or more partitions. When three or more partitions are formed between the first sound generating device 1300 and the second sound generating device 1300 ', the sound pressure reduction can be prevented from being reduced even if the sound interference in the left and right regions increases. It is possible to prevent a phenomenon in which the output characteristics are discontinuously recognized.

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

A glass substrate may be used as a substrate constituting the display panel 100. In order to implement a thinner display device, the thickness of the glass substrate may be thin. For example, a display device may be thinner by using a substrate having a thickness of 0.7 mm to 0.5 mm. When the thickness of the substrate becomes thin and the partition is implemented on the back surface of the display panel or the upper surface of the support member, the display panel itself is not flat due to the partition when the display panel and the support member are attached, and a step in the display panel A problem occurred. For example, there is a problem in that the screen of the display panel is not flat and is unevenly recognized. This phenomenon may be referred to as an uneven or wave phenomenon (hereinafter referred to as "wave phenomenon") of the display panel, and is not limited to terms. It will be described as an example that the partition is disposed on the support member, and even when disposed on the rear surface of the display panel, a wave phenomenon may occur. Therefore, in order to reduce the wave phenomenon, the first partition 1700 may be arranged along the shape of the display panel 100. For example, the first partition 1700 may have a quadrangular shape, but is not limited thereto and may be changed according to the shape of the display panel. In addition, when the display panel is a curved display panel including a curved shape, the first partition may have a curved shape or a curved shape. Accordingly, since the first partition 1700 is disposed along the shape of the display panel, the pulling of the display panel 100 can be reduced when the display panel 100 is attached to the support member, thereby preventing a wave phenomenon. .

The sound waves generated by the vibration of the display panel by the sound generating device may proceed while spreading radially from the center of the sound generating device. This sound wave can be referred to as a progressive wave. The traveling wave is reflected at one side of the partition to form a reflected wave, and the reflected wave can travel in the opposite direction to the traveling wave. The reflected wave overlaps and interferes with the traveling wave, so that it cannot proceed, and a standing wave standing at a certain position may be formed. The sound pressure may be reduced by this standing wave, and the sound output characteristics may be reduced.

Since the peak or dip phenomenon caused by standing waves cannot be controlled when configured as the first partition 1700, a structure for controlling the peak or dip phenomenon caused by standing waves is configured in the first partition 1700. I realized I should. Here, the peak is a phenomenon in which sound pressure bounces at a specific frequency, and the dip is a phenomenon in which the generation of a characteristic frequency is suppressed and a 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 prevent the wave phenomenon and to easily control the peak or dip phenomenon caused by standing waves. Accordingly, pads may be configured in the first partition 1700 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 '. have. Accordingly, the sound pressure reduction phenomenon caused by standing waves generated by interference between the reflected wave and the traveling wave can be reduced. In addition, standing waves that cause a decrease in sound pressure may occur at a large number of points of the traveling wave and the reflected wave. Therefore, the pad can be arranged at a position where the sound waves reaching from the sound generating device are the largest. For example, pads may be configured on one or more sides of the first partition 1700. The pad may be configured to be formed on one or more sides from which the strongest sound waves from among the four sides of the first partition 1700 arrive, and face the first and second sound generating devices 1300 and 1300 '. The partitions and pads disposed on the support member will be described with reference to FIGS. 8A to 11C, but the present invention is not limited thereto, and the same content may be applied to the partitions and pads disposed on the rear surface of the display panel.

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

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

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

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

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

The at least one first pad 811 and the at least one second pad 812 may be configured to face the first sound generating device 1300. The at least one seventh pad 821 and the at least one eighth pad 822 may be configured to face the second acoustic generator 1300 '. For example, the first pad 811 and the second pad 812 are disposed in the first area L to face the first sound generating device 1300, and the second sound is generated in the second area R. The seventh pad 821 and the eighth pad 822 may be disposed to face the device 1300 ′. Therefore, the pads 811, 812, 821, and 822 can reduce peak or dip phenomena caused by standing waves generated in the vertical direction of the first and second sound generating devices 1300 and 1300 ', and vibrations are transmitted from side to side. Since it can be, the sound output characteristics can be improved.

A third pad 813, a fourth pad 814, a ninth pad 823, and a tenth pad 824 may be further configured on the second side of the first partition 1700. The third pad 813, the fourth pad 814, the ninth pad 823, and the tenth pad 824 may be formed on one or more sides of the first partition 1700. The third pad 813, the fourth pad 814, the ninth pad 823, and the tenth pad 924 may be disposed in at least one of the first region L and the second region R. Can be. 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 the second region R. Can be placed on. For example, the third pad 813 and the fourth pad 814 may be symmetrically disposed with respect to the first acoustic generator 1300, and the ninth pad 823 and the tenth pad 824 May be symmetrically arranged with respect to the second acoustic 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. In this case, when the adhesive force of the first partition and the pad are 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 formed of a material capable of reducing the pulling of the display panel 100 when the display panel 100 and the support member 300 are attached. The pad located inside the first partition 1700 may be formed of a material that can reduce the pulling when contacting the display panel 100. When configured with a different material from the first partition 1700, the wave phenomenon may be reduced.

Accordingly, the at least one first pad 811 may be formed of a different material from the first partition 1700. The first partition 1700 may be formed of double-sided tape. When configured as a double-sided tape, it is disadvantageous to the wave phenomenon compared to the single-sided tape, but the adhesion 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 at least one of the first partition 1700, the second partition 1700 ', and the third partition 1700 ". The at least one first The pad 811 or the at least one second pad 812 may be formed of a different material from the first partition 1700. The at least one first pad 811 or the at least one second pad 812 may be The first partition 1700, the second partition 1700 ', and the third partition 1700 "may be formed of a different material. The at least one second pad 812 may be made of the same material as the at least one first pad 811. The at least one third pad 813 or the at least one fourth pad 814 may be formed of a different material from the first partition 1700. The at least one third pad 813 or the at least one fourth pad 814 is made of a material different from at least one of the first partition 1700, the second partition 1700 ', and the third partition 1700 ". The at least one third pad 813 or the at least one fourth pad 814 may be formed 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 formed of the same material as the first partition 1700. For example, it may be formed of a double-sided tape or a double-sided foam pad. The tape or the double-sided foam pad may be a foam material that can absorb shock when contacted with the display panel 100. If it is not a foam material, undesired abnormal sounds due to contact with the display panel 100 This may appear, for example, polyurethane (polyurethane), polyolefin (polyolefin), and may be composed of polyethylene (polyethylene) material, but is not limited to the second partition (1700 '), and the third partition (1700 ") may be made of the same material as the first partition 1700. When it is made of the same material, it is possible to improve the adhesion when the display panel 100 and the support member 300 are attached.

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

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

The first to fourth pads 811, 812, 813, and 814 and the seventh to tenth pads 821, 822, 823, and 824 may be made of a different material from 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 may include a second partition 1700 'or a third partition 1700 ". It can be made of different materials, for example, the first pad to the fourth pad 811, 812, 813, 814 and the seventh pad to the tenth pad 821, 822, 823, 824 are composed of single-sided tape. The single-sided tape may be a foam material that can absorb shock when contacted with the display panel 100. Unless it is a foam material, it is not desired due to contact with the display panel 100. The sectional tape may be made of, for example, polyurethane, polyolefin, and polyethylene, but is not limited to the first partition 1700. When the 1st to 4th pads (811, 812, 813, 814) and the 7th to 10th pads (821, 822, 823, 824) are made of different materials, the same material It may be made of a material having a different adhesive strength, or may be of a different material and may have a different adhesive strength, but is not limited to this. In this configuration, the first pad to the fourth pad 811 in the first partition 1700 may be used. , 812, 813, 814) and the seventh to tenth pads 821, 822, 823, and 824, when the display panel 100 and the support member 300 are attached, the pulling of the display panel 100 may be reduced. Therefore, the wave phenomenon can be prevented.

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

9A to 9C are views showing another embodiment of the sound generating device and the partition according to the embodiment of the present specification.

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

9A to 9C, pads may be configured on at least one side of the first partition 1700 in order to reduce peak or deep phenomena caused by standing waves generated in the vertical direction of the first and second sound generating devices. have. For example, the first partition 1700 is composed of a first side and a second side perpendicular to the first side, and the first pad 811 and the seventh pad 821 are configured on the first side. Can be. A second pad 812 and an eighth pad 822 may be further configured on a side facing the first side of the first partition 1700. A third pad 813, a fourth pad 814, a ninth pad 823, and a tenth pad 824 may be configured on the second side of the first partition 1700. 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. Can be omitted or briefly explained.

9A, at least one fifth pad 815, a sixth pad 816, an eleventh pad 825, and a twelfth pad (a) facing the second side of the first partition 1700 826) may be further configured. For example, the fifth pad 815 and the sixth pad 816 are disposed on a side facing the second side of the first partition 1700 in the first area L, and the second partition 1700 '. A fifth pad 815 and a sixth pad 816 may be disposed on one side of the. For example, the eleventh pad 825 and the twelfth pad 826 are disposed on the side opposite to the second side of the first partition 1700 in the second area 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 ) May be configured to face each other, for example, the fifth pad 815 and the sixth pad 816 may be symmetrically disposed with respect to the first acoustic generator 1300. The eleventh pad ( 825 and the twelfth pad 826 may be configured to face the ninth pad 823 and the tenth pad 824. For example, the eleventh pad 925 and the twelfth pad 926 may be formed. 2 may be symmetrically arranged based on the sound generating device 1300 '.

The at least one first pad 811 may be made of a different material from the first partition 1700. The at least one first pad 811 may be formed of a material different from at least one of the first partition 1700, the second partition 1700 ', and the third partition 1700 ". The at least one first The pad 811 or the at least one second pad 812 may be formed of a different material from the first partition 1700. The at least one first pad 811 or the at least one second pad 812 may be The first partition 1700, the second partition 1700 ', and the third partition 1700 "may be formed of a different material. The at least one second pad 812 may be made of the same material as the at least one first pad 811.

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

The at least one seventh pad 821 or the at least one eighth pad 822 may be formed of a different material from the first partition 1700. The at least one seventh pad 821 or the at least one eighth pad 822 may be made of a different material from at least one of the first partition 1700, the second partition 1700 ', and the third partition 1700 ". The at least one seventh pad 821 or the at least one eighth pad 822 may be made of the same material as the at least one first pad 811. At least one eighth pad ( 822) may be made of the same material as the at least one seventh pad 821. The at least one ninth pad 823 or the at least one tenth pad 824 is different from the first partition 1700. The first partition 1700, the second partition 1700 ', and the third partition 1700 "may be configured as the at least one ninth pad 823 or the at least one tenth pad 824. It may be composed of at least one different material. The at least one ninth pad 823 or the at least one tenth pad 824 may be made of the same material as the at least one first pad 811. The at least one ninth pad 823 or the at least one tenth pad 824 may be made of the same material as the at least one seventh pad 821. The at least one eleventh pad 825 or the at least one twelve pad 826 may be made of a different material from the first partition 1700. The at least one eleventh pad 825 or the at least one twelfth pad 826 is made of a material different from 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, 816 and the seventh to twelfth pads 821, 822, 823, 824, 825, 826 are different from the first partition 1700. It can be composed of materials. The first to sixth pads 811, 812, 813, 814, 815, 816 and the seventh to twelfth pads 821, 822, 823, 824, 825, 826 may include a second partition 1700 'or It may be made of a different material from the third partition 1700 ". For example, the first pad to the sixth pad 811, 812, 813, 814, 815, 816 and the seventh pad to the twelfth pad 821 , 822, 823, 824, 825, 826 may be formed of a single-sided tape The single-sided tape may be a foam material capable of absorbing impact upon contact with the display panel 100. Foam material If not, undesired abnormal noise may appear due to contact with the display panel 100. The single-sided tape may be formed of, for example, polyurethane, polyolefin, and polyethylene materials. The first partition 1700 and the first to sixth pads 811, 812, 813, 814, 815, 816 and the seventh to twelfth pads 821, 822, 823, 824, 82 5, 826) may be made of different materials, may be the same material and may have different adhesive strengths, or may be different materials and different adhesive strengths, but are not limited thereto. In the first to sixth pads 811, 812, 813, 814, 815, 816 in the 1700 and the second partition 1700 ', and in the first partition 1700 and the third partition 1700 " Since the seventh to twelfth pads 821, 822, 823, 824, 825, and 826 are attached to the display panel 100 and the support member 300, the pulling of the display panel 100 may be reduced. The phenomenon can be prevented.

The fifth pad 815, the sixth pad 816, the eleventh pad 825, and the twelfth pad 826 may further reduce peak or dip phenomena caused by standing waves generated by interference between the reflected wave and the traveling wave. , It is possible to further prevent degradation of sound quality due to standing waves or reflected waves. Therefore, by configuring the material of the partition and the pad differently, the wave phenomenon can be reduced, and the peak and dip effects caused by standing waves can be further reduced by the pad, so that the sound output characteristics can be further improved.

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

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

10A to 10C, pads may be configured on at least one side of the first partition 1700 to reduce peaks or dips caused by standing waves generated in the vertical direction of the first and second acoustic generators. Can be. For example, the first partition 1700 is composed of a first side and a second side perpendicular to the first side, and the first pad 811 and the seventh pad 821 are configured on the first side. Can be. A second pad 812 and an eighth pad 822 may be further configured on a side facing the first side of the first partition 1700. A third pad 813, a fourth pad 814, a ninth pad 823, and a tenth pad 824 may be configured on the second side of the first partition 1700. 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. Can be omitted or briefly explained.

Referring to FIG. 10A, at least one first member 911 and at least one second member 912 may be further disposed on one or more sides of the second partition 1700 ′. At least one third member 913 and at least one fourth member 914 may be further disposed on one or more sides of the third partition 1700 ". At least one first member 911 and at least one The second member 912 may be disposed in the third area C, and may be disposed between the third pad 813 and the fourth pad 814. At least one third member 913 and The at least one fourth member 914 may be disposed in the third region C, and may be disposed between the ninth pad 823 and the tenth pad 824. The first member 911 and the first 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. ) May be disposed in the horizontal direction. The first member 911 and the second member 912 prevent the vibration generated by the first acoustic generator 1300 from riding over the second partition 1700 '. The third member 913 and 4, member 914 may be prevented that the ride beyond the second vibration generated in the sound generating device (1300 '), a third partition (1700 "). Accordingly, the first member 911 to the fourth member 914 may have vibration or vibration between the second partition 1700 'and the third partition 1700 "in the first area L and / or the second area. Since it is possible to control the transmission to (R), it is possible to provide a display device with improved sound output characteristics.

The first member 911 and the second member 912 may be arranged symmetrically with respect to the first acoustic generator 1300, or may be arranged asymmetrically. For example, the first member 911 or the second member 912 based on the first acoustic generator 1300 may be disposed above or below the third member 913 or the fourth member 914. have. FIG. 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. Without being limited thereto, the first member 911 and the third member 913 may be configured in one or more. For example, only one of the first member 911 and the second member 912 may be configured, or may be configured as one of the third member 913 and the fourth member 914. When the first member 911 and the second member 912 are configured as one, or when the third member 913 and the fourth member 914 are configured as one, the first member 911 and the third member 913 are The first acoustic generator 1300 may be symmetrically disposed. For example, the first member 911 and the third member 913 based on the first sound generating device 1300 may be disposed on the same line as the first sound generating device 1300. As another example, the first member 911 and the third member 913 based on the second sound generating device 1300 '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 when the third member 913 and the fourth member 914 are configured as one, the first member 911 and the third member 913 are The first sound generating device 1300 may be arranged asymmetrically. For example, based on the first acoustic generator 1300, the first member 911 is disposed on the first acoustic generator 1300, and the third member 913 is the first acoustic generator 1300. You can post below. As another example, the first member 911 is disposed on the second sound generating device 1300 'based on the second sound generating device 1300', and the third member 913 is the second sound generating device ( 1300 ').

The first member 911 to the fourth member 914 may be configured as one of double-sided tape, single-sided tape, adhesive, and 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 When the pad 824 is made of a different material, a wave phenomenon may occur due to a different adhesive force upon contact with the display panel 100. Therefore, 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 sounds 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 formed 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 formed 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 configured with a single-sided tape. The cross-section tape may be a foam material capable of absorbing an impact upon contact with the display panel 100. If it is not a foam material, it was found that an undesired abnormal sound appears due to contact with the display panel 100. The single-sided tape may be formed 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 square Alternatively, the end may be a rounded rectangle, and it is not limited thereto, and may be configured in various shapes such as a circle.

Therefore, the partition is configured according to the shape of the display panel, and by configuring one or more pads on at least one side of the partition, the wave phenomenon can be reduced, and peak and dip effects caused by standing waves can be reduced, thereby improving the sound output characteristics. I can do it. And, by configuring the material of the partition and pad differently, it is possible to reduce the wave phenomenon, and to prevent the occurrence of abnormal sound, it is possible to improve the sound output characteristics. Further, by further configuring the member, the sound output characteristics can be further improved.

11A to 11C are views showing another embodiment of the sound generating device and the partition according to the embodiment of the present specification.

11A to 11C may be briefly described with the same content as that described with reference to FIGS. 8A to 10C, without being described. For example, the description of the sound generating device and the pad may be omitted or briefly described. The description of the partition, the pad, and the member will be described with reference to FIG. 11A as an example, and the description thereof may be equally applied to FIGS.

11A to 11C, pads may be configured on at least one side of the first partition 1700 in order to reduce peak or deep phenomena caused by standing waves generated in the vertical direction of the first and second sound generators. Can be. For example, the first partition 1700 is composed of a first side and a second side perpendicular to the first side, and the first pad 811 and the seventh pad 821 are configured on the first side. Can be. A second pad 812 and an eighth pad 822 may be further configured on a side facing the first side of the first partition 1700. A third pad 813, a fourth pad 814, a ninth pad 823, and a tenth pad 824 may be configured on the second side of the first partition 1700. 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. Can be omitted or briefly explained.

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

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

The at least one eleventh pad 825 or the at least one twelve pad 826 may be made of a different material from the first partition 1700. The at least one eleventh pad 825 or the at least one twelfth pad 826 is made of a material different from 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, 816 and the seventh to twelfth pads 821, 822, 823, 824, 825, 826 are different from the first partition 1700. It can be composed of materials. The first to sixth pads 811, 812, 813, 814, 815, 816 and the seventh to twelfth pads 821, 822, 823, 824, 825, 826 may include a second partition 1700 'or It may be made of a different material from the third partition 1700 ". For example, the first pad to the sixth pad 811, 812, 813, 814, 815, 816 and the seventh pad to the twelfth pad 821 , 822, 823, 824, 825, 826 may be formed of a single-sided tape The single-sided tape may be a foam material capable of absorbing impact upon contact with the display panel 100. Foam material If not, undesired abnormal sound may appear due to contact with the display panel 100. The single-sided tape may be made of, for example, polyurethane, polyolefin, and polyethylene materials. The first partition 1700 and the first to sixth pads 811, 812, 813, 814, 815, 816 and the seventh to twelfth pads 821, 822, 823, 824, 82 5, 826) may be made of different materials, may be the same material and may have different adhesive strengths, or may be different materials and different adhesive strengths, but are not limited thereto. In the first to sixth pads 811, 812, 813, 814, 815, 816 in the 1700 and the second partition 1700 ', and in the first partition 1700 and the third partition 1700 " Since the seventh to twelfth pads 821, 822, 823, 824, 825, and 826 are attached to the display panel 100 and the support member 300, the pulling of the display panel 100 may be reduced. The 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 description of the first to fourth members may be made with reference to FIG. 10A. Since it is the same as the contents described with reference to FIG. 10C, detailed description thereof will be omitted here.

Therefore, the partition is configured according to the shape of the display panel, and by configuring one or more pads on at least one side of the partition, the wave phenomenon can be reduced, and peak and dip effects caused by standing waves can be reduced, thereby improving the sound output characteristics. I can do it. And, by configuring the material of the partition and pad differently, it is possible to reduce the wave phenomenon, and to prevent the occurrence of abnormal sound, it is possible to improve the sound output characteristics. Further, by further configuring the member, the sound output characteristics can be further improved.

The sound generating device according to the embodiment of the present specification can be applied to the sound generating device disposed on the display device. 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, e-book, portable multimedia player (PMP), personal digital assistant (PDA), MP3 player, mobile Medical devices, desktop PCs, laptop PCs, netbook computers, workstations, navigation, car navigation, car display devices, televisions, wallpaper devices, SHINAGE ( signage) devices, game devices, laptops, monitors, cameras, camcorders, and home appliances. And, the sound generating device of the present specification can be applied to an organic light emitting device or an inorganic light emitting device. When the sound generating device is applied to the lighting device, the sound generating device may serve as a light and a speaker.

The display device according to the exemplary embodiment of the present specification may be described as follows.

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

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

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

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

According to some embodiments of the present specification, the connecting portion is disposed between the coupling member and the frame, and may be disposed along the outer edge 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, magnet, center pole, bobbin, coil, frame, and damper. By vibrating the display panel, sound can be generated.

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

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

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

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

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

According to some embodiments of the present disclosure, at least one first pad disposed on the first region and disposed on the first side, and at least one second pad disposed on the side facing the at least one first pad Including, at least one first pad or at least one second pad may be made of a different material from the first partition.

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

According to some embodiments of the present specification, the at least one seventh pad disposed on the second area and the at least one eighth pad disposed on the side facing the at least one eighth pad is disposed. Including, 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 second region may further include at least one ninth pad or at least one tenth pad disposed on a second side, and at least one ninth pad or at least one The tenth pad may be made of the same material as the at least one first pad.

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

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

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

According to some embodiments of the present disclosure, at least one disposed in a third area and disposed on one side of the second partition It may further include a first member or at least one second member, and the at least one first member or 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 disclosure, at least one disposed in a third area and disposed on one side of the third partition Further comprising a third member or at least one fourth member, the at least one third member or 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.

The embodiments of the present specification have been described in more detail with reference to the accompanying drawings, but the present specification is not necessarily limited to these embodiments, and may be variously modified within the scope of the technical idea of the present specification. . Therefore, the embodiments disclosed in the present 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 scope of protection of this specification should be interpreted by the claims, and all technical spirits within the scope equivalent thereto should be interpreted as being included in the scope of the present specification.

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

Claims (25)

A display panel for displaying an image;
A support member disposed on a rear surface of the display panel;
At least one sound generating device disposed on a rear surface of the display panel; And
It includes a connecting portion for connecting the support member and the at least one sound generating device,
The at least one sound generating device vibrates the display panel to generate sound,
The connection unit is a display device that is deformed according to the vibration of the at least one sound generating device. According to claim 1,
The connection unit vibrates with the at least one sound generating device, the display device. According to claim 1,
The connecting portion includes a plurality of connecting portions connected between the support member and the at least one sound generating device,
The plurality of connecting portions are spaced apart from each other with an air gap between the support member and the at least one sound generating device. The method of claim 3,
The plurality of connecting portions are disposed on the same plane between the support member and the at least one sound generating device, the display device. According to claim 1,
Further comprising a coupling member for connecting the at least one sound generating device and the support member,
The connecting portion includes a plurality of connecting portions connected between the coupling member and the at least one sound generating device. According to claim 1,
The connection unit is implemented to improve the sound of the low range of the at least one sound generating device, a display device. A display panel that displays an image and includes a first region, a second region, and a third region;
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 coupling member connecting the at least one sound generating device and the support member;
It includes a plurality of connecting parts connected between the coupling member and the at least one sound generating device,
The at least one sound generating device vibrates the display panel to generate sound,
The plurality of connecting portions are deformed according to the vibration of the at least one sound generating device, a display device. The method of claim 7,
The plurality of connecting portions vibrate together with the at least one sound generating device, a display device. The method of claim 7,
The plurality of connecting portions are spaced apart from each other with an air gap between the coupling member and the at least one sound generating device. The method of claim 7,
The plurality of connecting portions are disposed on the same plane between the coupling member and the at least one sound generating device, the display device. The method according to any one of claims 1 to 10,
The at least one sound generating device,
A plate spaced apart from the support member;
A frame on the outside of the plate;
A magnet and a center pole disposed on the plate;
A bobbin around the center pole;
A damper between the frame and the bobbin; And
It includes a coil on the outside of the bobbin,
The display device is disposed in a spaced apart area between the support member and the plate. The method of claim 11,
The plurality of connecting portions vibrate together with the plate, the magnet, the center pole, the bobbin, the coil, the frame, and the damper. The method of claim 11,
The coupling member includes a nut and a screw, and the plurality of connecting portions are between the screw and the frame. The method of claim 11,
The plurality of connecting portions are disposed between the coupling member and the lower portion of the frame, a display device. The method of claim 11,
The plurality of connecting portions are disposed between each of the corners of the coupling member and the frame, the display device. The method of claim 11,
The plurality of connecting portions are disposed between the coupling member and the frame, and are disposed along the periphery of the frame. The method of claim 11,
The plurality of connecting portions are disposed along the shape of the frame, and further comprising an area spaced apart from the frame. The method according to any one of claims 1 to 10,
The at least one sound generating device includes at least one of a circular, elliptical, and a pair of sound generating devices. The method according to any one of claims 7 to 10,
A first partition disposed between the display panel and the support member and including a first side and a second side perpendicular to the first side;
A second partition between the first area and the third area; And
And a third partition between the second area and the third area. The method of claim 19,
One of the second partition and the third partition is made of the same material as the first partition, the display device. The method of claim 19,
At least one first pad disposed on at least one of the first partition and the second partition in the first region and at least one disposed on at least one of the first partition and the third partition in the second region The display device further includes at least one of the second pads. The method of claim 21,
The at least one first pad or the at least one second pad and the first partition are made of the same material having different adhesive strength. The method of claim 21,
The at least one first pad or the at least one second pad is made of a different material from the first partition. The method of claim 21,
The second partition or the third partition is made of a material different from the first pad or the second pad, the display device. The method of claim 21,
Further comprising at least one member disposed in at least one of the second partition and the third partition in the third area,
The at least one member is made of the same material as the first pad or the second pad, the display device.

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