KR20210008141A - Display apparatus - Google Patents

Abstract

Provided is a display apparatus including a sound generation device capable of generating a sound such that the sound travels toward a front surface of a display panel, and improving a sound output characteristic within a low-pitched sound band. According to an embodiment of the present disclosure, the display apparatus includes: a display panel configured to display an image; a supporting member disposed on a rear surface of the display panel; a sound generation device disposed on the rear surface of the display panel; and a connection part configured to connect the supporting member to the sound generation device, wherein the sound generation device includes: a plate spaced apart from the supporting member; a frame disposed outside the plate; a magnet and a center pole disposed on the plate; a bobbin disposed around the center pole; a damper disposed between the frame and the bobbin; and a coil disposed outside the bobbin, and the connection part is disposed between the supporting member and the frame, is deformed according to a vibration of the at least one sound generation device, and vibrates together with the at least one sound generation device to vibrate the display panel so as to generate a sound in a front direction of the display panel.

Description

Display device {DISPLAY APPARATUS}

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

As the information age enters, the field of display that visually expresses electrical information signals has rapidly developed, and in response to this, various display devices with excellent performance of thinner, lighter, and low power consumption (Display Apparatus) Is being developed.

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

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

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

The display device may include a display panel that displays an image and a sound device that outputs sound along with the image. In such a display device, sound generated through the sound device proceeds to the rear of the display panel or to the bottom of the display panel rather than the front of the display panel. Accordingly, there is a problem that sound quality is degraded due to interference with sound reflected from the wall or the floor. Therefore, it is difficult to provide clear sound from the acoustic device without disturbing the user's immersion.

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

Accordingly, the inventors of the present specification recognized the above-mentioned problems, and when viewing an image from the front of the display panel, the direction of sound may be the front of the display panel, and several experiments were conducted to improve the sound quality of the sound. . Through several experiments, a display device having a new structure capable of generating sound so that the direction of sound proceeds toward the front of the display panel and improving the sound quality of the sound has been invented.

A problem to be solved according to an exemplary embodiment of the present specification is to provide a display device including a sound generating device capable of generating sound so that the direction of sound is toward the front of the display panel, and improving sound output characteristics in a low-pitched range. will be.

The problems to be solved according to the embodiments of the present specification are not limited to the problems mentioned above, and other problems that are 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 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, the support member, and the at least A connection part for connecting one sound generating device, wherein the at least one sound generating device comprises: a plate disposed to be spaced apart from the support member, a frame outside 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 outside the bobbin, and the connection part is disposed between the support member and the frame, and the at least one sound generating device And vibrates together with the at least one sound generating device to vibrate the display panel to generate sound in front of the display panel.

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 A plate disposed in at least one of the third areas, 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 the rear surface of the display panel and spaced apart from the plate, and a spaced area between the plate and the support member And a plurality of connecting portions that are deformed according to the vibration of the at least one sound generating device to give elasticity to the plate, the plate, the magnet, the center pole, the bobbin, the coil, the frame, the damper, and The plurality of connecting portions 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 may generate a sound so that the sound of the display device is directed toward the front surface of the display panel by configuring the sound generating device to generate sound by vibrating the display panel. Accordingly, it is possible to improve the sense of immersion of a viewer watching an image on 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, since it is not necessary to configure a speaker, the degree of freedom in design of the set device and the arrangement of the speaker can be improved. have.

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

Further, in the display device according to the exemplary embodiment of the present specification, by disposing the support member and the sound generating device spaced apart and configuring a connection part between the support member and the sound generating device, the sound output characteristic in the low-pitched range can be improved. Device can be provided.

In addition, in the display device according to the exemplary embodiment of the present specification, since the partition and at least one pad are formed on at least one side of the partition, peaks and dips caused by the standing wave can be reduced, so that sound output characteristics can be improved.

Further, in the display device according to the exemplary embodiment of the present specification, by configuring at least one pad on at least one side of the partition and configuring at least one member on at least one side of the partition, it is possible to reduce the wave phenomenon of the display panel. , A display device having improved sound output characteristics can be provided.

Further, in the display device according to the exemplary embodiment of the present specification, by configuring a partition between at least one sound generating device disposed on the display panel, the sound can be separated by the partition, so that stereo sound can be implemented and sound output. A display device with improved characteristics may be provided.

In addition, the display device according to the exemplary embodiment of the present specification comprises a partition, at least one pad, and at least one member on at least one side of the partition, and at least one of the partition, pad, and member is formed of a different material. Thus, it is possible to reduce the wave phenomenon of the display panel.

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

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

1A is a diagram illustrating a display device including a sound generating device according to an exemplary embodiment of the present specification.
FIG. 1B is a cross-sectional view taken along the cutting line I-I' of FIG. 1A.
2A and 2B are cross-sectional views of a sound generating device according to an embodiment of the present specification.
3A and 3B are views for explaining contents of generating sound by the sound generating device according to the first structure of the embodiment of the present specification.
4A and 4B are views for explaining contents of generating sound by the sound generating device according to the second structure of the embodiment of the present specification.
5 is a view showing a coupling structure of a sound generating device and a support member according to an embodiment of the present specification.
6A and 6B are views showing a sound generating apparatus according to another exemplary embodiment of the present specification.
7 is a diagram showing sound output characteristics according to an embodiment of the present specification.
8A to 8C are diagrams illustrating an example of a sound 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 showing 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 become 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 forms different from each other, and only these embodiments make the disclosure of the present specification complete, and common knowledge in the technical field to which the present specification pertains. It is provided to completely inform the scope of the invention to those who have it, and this specification is only defined by the scope of the claims.

The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of 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 describing the present specification, if it is determined that a detailed description of related known technologies may unnecessarily obscure the subject matter of the present specification, the detailed description thereof will be omitted. When "include", "have", "consists of" and the like mentioned in the present specification are used, other parts may be added unless "only" is used. In the case of expressing the constituent elements in the singular, it includes the case of including the plural unless specifically stated otherwise.

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

In the case of a description of the positional relationship, when the positional relationship of two parts is described as "top", "top", "bottom", "side", etc., for example, "direct" or "direct" One or more other parts may be placed between the two parts unless this is used.

In the case of a description of a temporal relationship, for example, when the temporal precedent relationship is described as "after", "following", "after", "before", "right" or "direct" is not used. It may also include cases that are not continuous.

First, second, etc. are used to describe various elements, but these elements are not limited by these terms. These terms are only used to distinguish one component from another component. Accordingly, the first component mentioned below may be a second component within the technical idea of the present invention.

In describing the constituent elements 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 nature, 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, the component may be directly connected to or connected to the other component, but indirectly, unless otherwise specified It should be understood that other components may be "interposed" between each component that is connected or can be connected.

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

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

In the present specification, a "display device" may include a display device such as a liquid crystal module (LCM) including a display panel and a driver for driving the display panel, and an OLED module. In addition, an equipment including a laptop computer, a television, a computer monitor, an automotive apparatus, or other form of a vehicle, which is a complete product or final product including an LCM, an OLED module, etc. Apparatus, a set electronic apparatus such as a mobile electronic apparatus such as a smart phone or an electronic pad, or a set device or set apparatus may also be included.

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

Further, in some examples, an LCM and OLED module including a display panel and a driver may be expressed as a "display device", and an electronic device as a finished product including an LCM and OLED module may be classified as a "set device". For example, the display device includes a liquid crystal (LCD) or organic light emitting (OLED) display panel, and a source PCB that is a control unit for driving the display panel, and the set device is electrically connected to the source PCB to control the entire set device. It may be a concept further including a set PCB that is a set control unit to control.

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

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

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 a cross region between the gate lines and data lines. In addition, an array substrate including a thin film transistor, which is an element for selectively applying a voltage to each pixel, an organic light emitting element (OLED) layer on the array substrate, and an encapsulation substrate disposed on the array substrate to cover the organic light emitting element layer. Alternatively, it may be configured to include an encapsulation substrate or the like. The encapsulation substrate may protect the thin film transistor, the organic light emitting device layer, and the like from external impact, and prevent moisture or oxygen from penetrating into the organic light emitting device layer. Further, the layer formed on the array substrate may include an inorganic light emitting layer, for example, a nano-sized material layer, a quantum dot emission layer, and the like. Another example may include a micro light emitting diode.

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

In the present 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 a vehicle. For example, such a display panel may be implemented between occupants of two front seats so that vibrations of the display panel propagate toward the interior of the vehicle. Thus, the audio experience in the vehicle can be improved compared to having speakers only on the interior sides of the vehicle.

Hereinafter, exemplary embodiments of the present specification will be described through the accompanying drawings and exemplary embodiments.

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

1A shows a rear view of a display device. Referring to FIG. 1A, the display device 10 includes a display panel 100 that displays an image, and is disposed on the rear surface of the display panel 100, and a sound generator that vibrates the display panel 100 to generate sound ( 200) may be included. For example, the sound generating device 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 can be implemented as any type of display panel, such as a liquid crystal display panel, an organic light emitting diode (OLED) display panel, and an electroluminescent display panel. have. The display panel 100 may vibrate according to the vibration of the sound generating device 200 to output sound.

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

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

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

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

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

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

In addition, the support member 300 may be a plate-shaped member formed over or over the rear surface of the display panel 100. For example, the support member 300 covers the entire rear surface of the display panel 100 to be spaced apart, and may have a flat plate shape made of a glass material, a metal material, or a plastic material. Here, the edge or sharp edge portion of the support member 300 may have a slope shape or a curved shape by a chamfer 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 laminated structure of a metal plate and a glass plate facing the rear surface of the display panel 100 while having a relatively thinner thickness than the glass plate. In this case, the display device ( The back side of 10) can also be used as a mirror surface by a metal plate.

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

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

Further, the adhesive member 400 may be disposed at 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 rear surface of the display panel 100 and the upper surface of the support member 300. And. The adhesive member 400 may be a double-sided tape, a single-sided tape, an adhesive, and a bond, but is not limited thereto.

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

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

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

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

For example, a magnet 220 may be provided on the first plate 210, and a 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. Therefore, the first plate 210 may be fixed to the support hole formed in the support member 300, and the magnet 220 located between the first plate 210 and the second plate 210 ′ is fixedly supported. I can.

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

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

The frame 240 may be disposed on the second plate 210 ′ along the outer 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 surrounding the center pole 230. The coil 260 is wound around 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 a sheet of paper or aluminum. The coil 260 may be wound around a predetermined area under the bobbin 250. The bobbin 250 and the coil 260 may be combined and expressed as a voice coil. The damper 270 may be disposed between the frame 240 and a partial area on the upper side 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 of the sound generating display device 200 ′ includes a magnet 220 on the first plate 210, a center pole 230 on the magnet 220, and a magnet 220. And a bobbin 250 disposed around the center pole 230 and a coil 260 wound around the bobbin 250.

For example, the first plate 210 may be fixed to a support hole formed in the support member 300. The magnet 220 may be disposed on the first plate 210, and the center pole 230 may be disposed on the magnet 220. The center pole 230 may 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 ′ is disposed around the outer periphery of the first plate 210, and the frame 240 may be disposed outside the second plate 210 ′. The damper 270 may be disposed between the frame 240 and the bobbin.

Compared to the first structure in which the magnet is disposed on the outside, the second structure, which has an inner magnetic shape, has an advantage of having a small leakage magnetic flux and reducing the overall size. The sound generating device used in the display device according to the exemplary embodiment of the present specification is not limited to the structures shown in FIGS. 2A and 2B. Other types of sound generators capable of generating sound by vibrating the display panel or directly vibrating the display panel may be used.

3A and 3B are views for explaining contents of generating sound by 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, and the external magnetic field becomes the coil 260 can occur around.

In this state, when a sound generating current 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 the external magnetic field. For example, when a current is applied to the coil 260, a magnetic field is formed around the coil 260, and an external magnetic field is formed by the magnet 220, so the entire bobbin 250 is center pole according to Fleming's left hand rule. While guided by the 230, it can move 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 upward (indicated by an arrow) according to the current application and non-application of the coil 260. Is vibrated, and a sound wave (or sound) is generated by this vibration. In this state, when current application is stopped or a current in the opposite direction is applied, a force to move the bobbin 250 downward is generated 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 an arrow).

The damper 270 may be disposed between the frame 240 and a partial area above the bobbin 250. The damper 270 has a corrugated structure, has elasticity, and can adjust the vertical vibration of the bobbin 250 by contraction and relaxation according to the vertical motion of the bobbin 250. For example, since the damper 270 is connected to the bobbin 250 and the frame 240, respectively, the vertical vibration of the bobbin 250 can be adjusted by the restoring force of the damper 270. For example, when the bobbin 250 vibrates more than a certain height or less than a certain height, the bobbin 250 may return to its original position by the restoring force of the damper 270. Accordingly, according to the direction and magnitude of the current applied to the coil 260, the display panel 100 may vibrate up and down, and a sound wave may be generated by this vibration.

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

4A shows a state in which current is applied. The second plate 210 ′ becomes the S pole, and the center pole 230 connected to the upper surface of the magnet 220 becomes the N pole, and an external magnetic field is formed around the coil 260. The S pole and the N pole may be compatible, and the sound generator may be operated in the same manner by changing the winding direction of the coil 260. In this state, when a sound generating current 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 an external magnetic field is formed by the magnet 220, so the entire bobbin 250 is center pole according to Fleming's left hand rule. While guided by the 230, it can move 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 the current application and non-application of the coil 260, A sound wave (or sound) is generated by this vibration. In this state, when current application is stopped or a current in the opposite direction is applied, a force to move the bobbin 250 downward is generated according to a similar principle described in FIG. 4A, as shown in FIG. 4B, and the display panel 100 ) Vibrates in the downward direction (indicated by an arrow).

The damper 270 may be disposed between the frame 240 and a partial area above the bobbin 250. The damper 270 has a corrugated structure, has elasticity, and can adjust the vertical vibration of the bobbin 250 by contraction and relaxation according to the vertical motion of the bobbin 250. For example, since the damper 270 is connected to the bobbin 250 and the frame 240, respectively, the vertical vibration of the bobbin 250 can be adjusted by the restoring force of the damper 270. For example, when the bobbin 250 vibrates more than a certain height or less than a certain height, the bobbin 250 may return to its original position by the restoring force of the damper 270. Accordingly, according to the direction and magnitude of the current applied to the coil 260, the display panel 100 may vibrate up and down, and a sound wave may be generated by this vibration.

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

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

Referring to FIG. 5, the sound generating device 200 may include an expanding part 614. The expanding 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 protrusion having an increased diameter may be referred to as an enlarged diameter 614. The expanding portion 614 may have an annular shape. An extension part 612 for fixing the sound generating device 200 may be formed in some of the expanding parts 614.

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

When a self-clinching nut is used, the vibration generated by the sound generating device 200 may be partially absorbed by the self-clinching nut, which is the nut 330, so the vibration transmitted to the support member 300 Can 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. For this reason, even if the resonance frequency of the sound generating device 200 is lowered, since the first plate 220 and the support member 300 are fixed, it was recognized that the low frequency band output from the sound generating device 200 cannot be lowered. . Accordingly, the inventor invented a new structured sound generating device capable of lowering the resonant frequency of the sound generating device and improving the low frequency range through several experiments. This will be described with reference to FIGS. 6 and 7.

6A and 6B are views showing a sound generating apparatus according to another exemplary embodiment of the present specification.

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

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

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

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

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

In order to reduce or reduce heat generated when the sound generator 1300 vibrates, a heat 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 via the second adhesive member. For example, the heat dissipation member may be disposed between the first adhesive member and the rear surface of the display panel 100. The heat dissipation member may have a size larger than the size of the sound generating device 1300 or may be configured to cover the sound generating device 1300, and may have a polygonal plate shape or a disk shape having a predetermined thickness, and is limited thereto. no. For example, the heat dissipation member may be a heat dissipation sheet or a heat dissipation tape made of a metal material having high thermal conductivity, such as aluminum (Al), copper (Cu), silver (Ag), and alloys thereof, but is not limited thereto. Accordingly, since the heat dissipation member is configured, the effect on the image quality of the display panel due to heat generated when the sound generating device vibrates can be reduced.

As described in FIG. 5, since the support member and the plate are connected with screws, it has been recognized that the plate must have 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 generator 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 several experiments, it was recognized that the plate should not be fixed by the support member and screw, and that the sound generating device should be a structure that can be fixed to the support member. For example, the plate may be disposed to be spaced apart from the support member, and a structure may be formed between the support member and the sound generating device so that the sound generating device is fixed to the support member. 6A and 6B, the plate 1210 and the support member 300 of the sound generating device 1300 may be spaced apart from each other, and the structure disposed between the plate 1210 and the support member 300 is , For example, it may be the connection unit 1280. The connection part 1280 may be made of metal or plastic, but is not limited thereto. For example, the connection part 1280 may give elasticity to the plate 1210 to reduce rigidity, and may reduce the resonant frequency to improve the low-pitched sound of the sound generating device 1300. This will be described with reference to Equation 1 below. The resonance frequency f ₀ of the vibration generated by the sound generating device 1300 may be determined by Equation 1 below.

[Equation 1]

In Equation 1, k may be the stiffness of the object and m may be the mass of the object. For example, the sound generator 1300 can reduce the resonant 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 frequency range. . Since the connection part 1280 can lower the resonant frequency by lowering the rigidity of the sound generating device 1300, it is possible to improve the sound of the low-pitched range of the sound generating device 1300. As another example, the sound generator 1300 may reduce the mass m of the object and at the same time reduce the stiffness k of the object more than an increase rate of the mass m, thereby lowering the resonance frequency.

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 a self-clinching nut may be a PEM® nut, and embodiments are not limited thereto. The nut 1330 may be fastened to the support member 300 in a press-fitting manner, but is not limited thereto. The sound generating device 1300 and the support member 300 may be coupled by a coupling member 1310. The connection part 1280 may be connected to the screw 1320.

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

The frame 1240 may have a circle, a square, and a square with rounded corners, and the shape is not limited thereto. When the frame 1240 is a square or a square with rounded corners, the lower end of the frame 1240 may have a square with four corners or a square with rounded corners, and the connection portion 1280 includes a screw 1320 and a frame 1240 ) May be disposed between each of the corners. For example, the connection part 1280 may be disposed between each of the four corners of the frame 1240 and the screw 1320. The connection part 1280 may be disposed around the frame 1240 according to the shape of the frame 1240, and the connection part 1280 disposed around the frame 1240 includes screws 1320 of the frame 1240. Can be placed between. For example, when the frame 1240 is a square or a square with rounded corners, the connection part 1280 may be disposed around the frame 1240 along a square of the frame 1240 or a square with rounded corners. 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 part 1280 may be disposed on the outer side of the frame 1240 according to the shape of the frame 1240, and the connection part 1280 disposed on the outer side of the frame 1240 includes screws 1320 of the frame 1240. Can be placed between. For example, when the frame 1240 is a square or a square with rounded corners, the connection part 1280 may be disposed on the outer side of the frame 1240 along the square or rounded square of the frame 1240, and The connection part 1280 disposed outside the 1240 may be disposed between the screws 1320 at each of the four corners of the frame 1240. The embodiment is not limited thereto, and the connection part 1280 may be disposed at a portion other than the corner of the frame 1240. . For example, when the frame 1240 is a square or a square with rounded corners, the connection portion 1280 may be disposed between the frame 1240 and the coupling member 1310, and the connection portion 1280 is the frame 1240 and Any position between the coupling members 1310 may be possible. For example, when the frame 1240 is circular, the connection portion 1280 may be disposed between the frame 1240 and the coupling member 1310, and the connection portion 1280 is the frame 1240 and the coupling member 1310 Any position in between can be possible. The connection part 1280 disposed between each of the four corners of the frame 1240 and the screw 1320 and the connection part 1280 disposed outside the frame 1240 may be integrally configured. For example, the connection part 1280 disposed between each of the four corners of the frame 1240 and the screw 1320 and the connection part 1280 disposed outside the frame 1240 may be integrally formed through a laser process. have. The present invention is not limited thereto, and the connection part 1280 may be configured in a form of punching using a laser, etching, and a mold. Therefore, by having a plurality of connecting portions 1280, the support force for the frame 1240 can be complemented, and the plate 1210 surrounded by the frame 1240 is stably supported, and the plate 1210 is resilient. And lowering the rigidity of the sound generating device 1300.

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

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

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

Referring to FIG. 7, it can be seen that the sound pressure in the sound generating apparatus according to the exemplary embodiment of the present specification is improved in a region of 200 Hz or less, which is a low frequency band, rather than the case of the dotted line. For example, at a frequency of 100 Hz, the sound pressure of the dotted line is 60 dB, and since the sound pressure of the sound generating device according to the embodiment of the present specification is 75 dB, it can be seen that the sound pressure of about 15 dB is improved. Accordingly, it can be seen that the sound pressure in the low-pitched range is improved in the sound generating apparatus according to the exemplary embodiment of the present specification. It can be seen that the sound pressure of the sound generating apparatus according to the exemplary embodiment of the present specification is improved in a range of 200 Hz to 3 kHz or less, which is a mid-range. The mid-range may be 200 Hz to 3 kHz, the high-frequency 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 diagrams illustrating an example of a sound generating device and a partition according to an embodiment of the present specification.

8A to 8C, the display panel 100 may include a first region L, a second region R, and a third region C. The first area L is a left area of the rear surface of the display panel 100, the second area R is a right area of the rear surface of the display panel 100, and the third area C is the display panel 100. It may be the central area of the back. The left area and the right area may be compatible with each other, and will be described with the contents indicated in the drawings for convenience. 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 ′ is the rear surface of the display panel 100. It may be disposed in the second region R of. At least one sound generating device may include one of a circular shape and an elliptical shape, or may include a pair of sound generating devices. At least one sound generating device may generate sound by vibrating the display panel. For example, at least one sound generating device may generate sound by directly vibrating the display panel. For example, it is possible to generate sound in a low, medium and high frequency range, and to output a stereo sound.

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

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

In FIG. 8A, the first sound generating device 1300 and the second sound generating device 1300 ′ may be configured as a circular sound generating device. Since the circular sound generating device is the same as that described in FIGS. 6A and 6B, a description thereof will be omitted. In FIG. 8B, the first sound generating device 1900 and the second sound generating device 1900 ′ may be configured as an elliptical sound generating device. As for the oval-shaped sound generating device, the sound generating device described in FIGS. 6A and 6B may be applied, and the shape of the bobbin may be formed in an elliptical shape. When the oval-shaped sound generator is applied, the sound output characteristics of the middle and high frequencies can be further improved. As for the coupling structure between the first and second sound generating devices 1900 and 1900' and the support member, the contents described in FIGS. 6A and 6B may be applied.

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

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

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

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

When the display panel 100 vibrates by the first and second sound generating devices 1300 and 1300', the first partition 1700, the second partition 1700', and the third partition 1700' The air gap or space that generates sound or transmits sound may be referred to as a partition, and the partition is referred to as an enclosure or a baffle. The first partition 1700, the second partition 1700', and the third partition 1700" may be formed in a sealed structure or may be formed in an unsealed structure. May be.

Each of the first partition 1700, the second partition 1700 ′, and the third partition 1700 ″ prevents sound leakage through each side of the display panel 100, thereby preventing the first and second sound Since sound from the generators 1300 and 1300' can be output only to the front of the display panel 100, sound output characteristics can be improved.

The first partition 1700, the second partition 1700 ′, and the third partition 1700 ″ may be disposed between the display panel and the support member. For example, the first partition 1700 and the third partition 1700 ′ may be disposed between the display panel and the support member. 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 And the third partition 1700" may be disposed on the display panel 100. In FIGS. 8A to 11C, the first partition 1700, the second partition 1700 ′, and the third partition 1700 ″ will be described as being disposed on the support member 300.

The second partition 1700 ′ and the third partition 1700 ″ may separate left and right sounds generated by the first sound generating device 1300 and the second sound generating device 1300 ′. The second partition 1700 ') and the third partition 1700", the vibration of the display panel 100 in a space or air gap is attenuated or absorbed at the center of the display panel 100, It is possible to block the transmission of sound from the area to the space on 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. And, The first sound generating device 1300 and the second sound generating device 1300' may output different low, medium and high-pitched sounds, stereo sound may be output by separation of left and right sound, and sound output in the form of 2.1 channels. A display device having characteristics can be provided.

A first sound generating device 1300 is formed in the first area L, which is the left area, and a second sound generating device 1300 ′, is formed in the second area R, which is the right area. ), the sound generating device may not be configured. Accordingly, deterioration of sound quality due to interference in the left and right areas can be reduced. In addition, there is an effect that can further improve the acoustic characteristics of the middle and high frequencies. 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 low-frequency sound. In addition, the third region C may reduce deterioration of sound quality due to interference in the first region L and the second region R. Therefore, it is possible to improve the sound in the low, medium and high frequency range. In addition, descriptions of the first partition 1700, the second partition 1700', and the third partition 1700" may be equally applied to FIGS. 8B to 11C.

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

8A to 11C show that the sound generating device is not located in the center of the left area, which is the first area L, or the right area, which is the second area R, of the display panel 100, but is skewed toward the left area or the right area. It shows what has been done. The present invention is not limited thereto, and the sound generating device may be disposed in 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 asymmetrically disposed in the first region L and the second region R of the display panel. When the sound generating device is located in the left area or the right area than the center of the left area of the first area (L) or the center of the right area of the second area (R) of the display panel 100, stereo 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 dual structure including two or more partitions. For example, when implementing a mono sound that outputs the same sound in the left and right regions, since the left and right regions of the display panel have the same vibration characteristics, a problem of reducing sound pressure may occur due to maximizing resonance or interference in a certain frequency band. have. Therefore, the difference between the resonant frequencies of the middle and high sounds generated by the first sound generating device 1300 in the first area L, which is the left area, and the second sound generating device 1300 ′ in the second area R, the right area. In order to reduce the effect of the acoustic characteristics due to this, it can be configured as a structure including two or more partitions. When the first sound generating device 1300 and the second sound generating device 1300 ′ are composed of three or more partitions, a reduction in sound pressure can be prevented even if the sound interference in the left and right regions becomes severe, It is possible to prevent the phenomenon that the output characteristics are recognized discontinuously.

Accordingly, by configuring two or more partitions in the center area of the display panel, it is possible to reduce the influence of acoustic characteristics due to the difference in the resonance frequencies of the middle and high sounds in the left and right areas of the display panel. In addition, by configuring a partition between the two sound generating devices, the left and right separation of sound is possible, so that stereo characteristics of sound may be improved. In addition, different low, medium and high-pitched sounds may be output by the 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 can be made thin. For example, a display device may be implemented to be thinner by using a substrate whose thickness of the glass substrate is reduced from 0.7mm to 0.5mm. When the thickness of the substrate decreases and the partition is implemented on the rear surface of the display panel or the upper surface of the support member, the display panel itself is not flat due to the partition when the display panel and the support member are attached, and the level difference in the display panel is not A problem occurred. For example, there has been a problem in that the screen of the display panel is not flat and is perceived unevenly. Such a phenomenon may be referred to as an uneven phenomenon or a wave phenomenon (hereinafter referred to as "wave phenomenon") of the display panel, and is not limited to terms. The partition is disposed on the support member as an example, and a wave phenomenon may occur even when disposed on the rear surface of the display panel. Accordingly, 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 rectangular shape, but is not limited thereto and may be changed according to the shape of the display panel. In addition, when the display panel is a curved display panel including a curved shape, the first partition may have a curved shape or a curved shape. Accordingly, since the first partition 1700 is arranged in the shape of the display panel, the pull of the display panel 100 can be reduced when the display panel 100 and the support member are attached, so that a wave phenomenon can be prevented. .

A sound wave generated by vibrating the display panel by the sound generating device may proceed while spreading radially from the center of the sound generating device. This sound wave may be referred to as a progressive wave. The traveling wave is reflected from one side of the partition to form a reflected wave, and the reflected wave can travel in a direction opposite to the traveling wave. The reflected wave overlaps and interferes with the traveling wave to prevent it from traveling, and a standing wave that is stagnant 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.

When the first partition 1700 is configured, the peak or dip phenomenon caused by the standing wave cannot be controlled. Therefore, a structure for controlling the peak or dip phenomenon caused by the standing wave is configured in the first partition 1700 I recognized that I should do it. Here, the peak is a phenomenon in which the sound pressure bounces at a specific frequency, and the dip is a phenomenon in which the generation of the characteristic frequency is suppressed and a low sound pressure is generated. The sound output characteristics of the display device may be deteriorated due to a peak or dip phenomenon. This structure should be constructed so that wave phenomenon can be prevented and it is easy to control peak or dip phenomenon caused by standing wave. Therefore, in order to reduce peaks and dips caused by standing waves generated in the vertical direction of the first and second sound generating devices 1300 and 1300', a pad can be formed in the first partition 1700. have. Accordingly, it is possible to reduce the sound pressure reduction phenomenon caused by the standing wave caused by interference between the reflected wave and the traveling wave. In addition, standing waves causing a decrease in sound pressure may be generated at a point where the sizes of the traveling waves and the reflected waves are large. Accordingly, the pad may be disposed at a position in which sound waves arriving from the sound generating device are greatest. For example, a pad may be formed on one or more sides of the first partition 1700. The pad may be formed on one or more sides of the first partition 1700 to which the strongest sound waves arrive, and may be configured to face the first and second sound generating devices 1300 and 1300'. In FIGS. 8A to 11C, the partitions and pads disposed on the support member will be described, but the present disclosure is not limited thereto, and the same contents may be applied even when the partitions and pads are disposed on the rear surface of the display panel.

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

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

At least one second pad 812 may be disposed facing the at least one first pad 811. For example, at least one second pad 812 may be disposed on a side facing the at least one first pad 811. At least one second pad 812 may be disposed in the first region L. At least one second pad 812 may constitute at least one or more.

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

A second pad 812 and an eighth pad 822 may be further formed on a side of the first partition 1700 facing the first side. The second pad 812 is disposed on a side facing the first side of the first partition 1700 in the first area L, and the first side of the first partition 1700 and the first side in the second area R The 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 second pad 812 and an eighth pad 822 may be configured.

At least one first pad 811 and at least one second pad 812 may be configured to face the first sound generating device 1300. At least one seventh pad 821 and at least one eighth pad 822 may be configured to face the second sound generating device 1300 ′. For example, a first pad 811 and a second pad 812 are disposed in the first area L to face the first sound generating device 1300, and a 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, 822 can reduce peaks or dips caused by standing waves generated in the vertical direction of the first and second sound generating devices 1300, 1300', and vibrations are transmitted to the left and right. Therefore, the sound output characteristics can be improved.

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

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

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

One of the second partition 1700 ′ and the third partition 1700 ″ may be made of the same material as the first partition 1700. For example, it may be composed of a double-sided tape or a double-sided foam pad. The tape or double-sided foam pad may be a foam material capable of absorbing an impact upon contact with the display panel 100. If it is not a foam material, unwanted abnormal noise due to contact with the display panel 100 For example, it may be made of polyurethane, polyolefin, and polyethylene, but is not limited thereto. The second partition 1700 ′, and the third partition 1700" may be formed of the same material as the first partition 1700. When the display panel 100 and the support member 300 are made of the same material, adhesion can be improved when the display panel 100 and the support member 300 are attached.

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

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

The first to fourth pads 811, 812, 813, and 814 and the seventh to tenth pads 821, 822, 823, and 824 may be formed of a material different from that of the first partition 1700. The first to fourth pads 811, 812, 813, and 814 and the seventh to tenth pads 821, 822, 823, and 824 are formed with the second partition 1700' or the third partition 1700". For example, the first to fourth pads 811, 812, 813, and 814 and the seventh to tenth pads 821, 822, 823, 824 are composed of a single-sided tape. The single-sided tape may be made of a foam material capable of absorbing an impact upon contact with the display panel 100. If it is not made of a foam material, an abnormality that is not desired due to contact with the display panel 100 may be used. The single-sided tape may be made of, for example, polyurethane, polyolefin, and polyethylene, but is not limited thereto. When the first to fourth pads 811, 812, 813, and 814 and the seventh to tenth pads 821, 822, 823, and 824 are made of different materials, they may be the same material and have different adhesive strengths. Or, it may be a different material and a material having a different adhesive strength, but is not limited thereto. In this configuration, the first to fourth pads 811, 812, 813, and 814 in the first partition 1700 When the seventh to tenth pads 821, 822, 823, and 824 are attached to the display panel 100 and the support member 300, the pull of the display panel 100 may be reduced, so that a wave phenomenon can be prevented. have.

Accordingly, by configuring one or more pads on at least one side of the partition and configuring the material of the partition and the pad 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 without the description of the same contents as those described in FIGS. 8A to 8C. For example, a description of the sound generating device and the pad may be omitted or briefly described. A description of the partition and the pad will be described using FIG. 9A as an example, and the description may be equally applied to FIGS. 9B and 9C.

9A to 9C, pads may be formed on at least one side of the first partition 1700 in order to reduce peaks or dips 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 a first pad 811 and a seventh pad 821 are formed on the first side. I can. A second pad 812 and an eighth pad 822 may be further formed on a side of the first partition 1700 facing the first side. A third pad 813, a fourth pad 814, a ninth pad 823, and a tenth pad 824 may be formed on the second side of the first partition 1700. 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 in FIGS. 8A to 8C, so detailed description here Can be omitted or briefly described.

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

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

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

At least one seventh pad 821 or at least one eighth pad 822 may be formed of a material different from that of the first partition 1700. The at least one seventh pad 821 or the at least one eighth pad 822 is made of a material different from at least one of the first partition 1700, the second partition 1700 ′, and the third partition 1700 ″. At least one seventh pad 821 or at least one eighth pad 822 may be made of the same material as the at least one first pad 811. At least one eighth pad. The 822 may be formed 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 a material different from the first partition 1700 The at least one ninth pad 823 or at least one tenth pad 824 is one of the first partition 1700, the second partition 1700 ′, and the third partition 1700 ″. It can be made of at least one and a different material. The at least one ninth pad 823 or the at least one tenth pad 824 may be formed 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 formed of the same material as the at least one seventh pad 821. The at least one eleventh pad 825 or the at least one twelfth pad 826 may be formed of a material different 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 formed 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 are the second partition 1700' or It may be formed of a material different from the third partition 1700". For example, the first to sixth pads 811, 812, 813, 814, 815, 816, and the seventh to twelfth pads 821 , 822, 823, 824, 825, and 826 may be formed of a single-sided tape, which may be a foam material capable of absorbing an impact upon contact with the display panel 100. Foam material Otherwise, unwanted abnormal noise may appear due to contact with the display panel 100. The single-sided tape may be made of, for example, polyurethane, polyolefin, and polyethylene. The first partition 1700, the first to sixth pads 811, 812, 813, 814, 815, and 816, and the seventh to twelfth pads 821, 822, 823, When 824, 825, and 826 are made of different materials, they may be the same material and may have different adhesion strength, or may be different materials and may have different adhesion strength, but are not limited thereto. The first to sixth pads 811, 812, 813, 814, 815, 816, and the first partition 1700 and the third partition 1700" in the first partition 1700 and the second partition 1700'. ), when 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 pull of the display panel 100 may be reduced. , Wave phenomenon can be prevented.

The fifth pad 815, the sixth pad 816, the eleventh pad 825, and the twelfth pad 826 can further reduce a peak or dip phenomenon caused by a standing wave caused by interference between a reflected wave and a traveling wave. , It is possible to further prevent degradation of sound quality caused by standing waves or reflected waves. Accordingly, by configuring the material of the partition and the pad differently, the wave phenomenon can be reduced, and the peak and dip phenomenon caused by the standing wave can be further reduced by the pad, thereby further improving the sound output characteristics.

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

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

10A to 10C, in order to reduce peaks or dips caused by standing waves generated in the vertical direction of the first and second sound generating devices, a pad may be formed on at least one side of the first partition 1700. I can. For example, the first partition 1700 is composed of a first side and a second side perpendicular to the first side, and a first pad 811 and a seventh pad 821 are formed on the first side. I can. A second pad 812 and an eighth pad 822 may be further formed on a side of the first partition 1700 facing the first side. A third pad 813, a fourth pad 814, a ninth pad 823, and a tenth pad 824 may be formed on the second side of the first partition 1700. 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 in FIGS. 8A to 8C, so detailed description here Can be omitted or briefly described.

Referring to FIG. 10A, at least one first member 911 and at least one second member 912 may be further disposed on one or more sides of the second partition 1700 ′. At least one third member 913 and at least one fourth member 914 may be further disposed on one or more sides of the third partition 1700". At least one first member 911 and at least one The second member 912 of may be disposed in the third area C, and may be disposed between the third pad 813 and the fourth pad 814. At least one third member 913 and At least one fourth member 914 may be disposed in the third region C, and may be disposed between the ninth pad 823 and the tenth pad 824. The first member 911 and the 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 ). The first member 911 and the second member 912 prevent the vibration generated by the first sound generating device 1300 from passing through the second partition 1700'. The third member 913 and the fourth member 914 may prevent the vibration generated by the second sound generating device 1300' from passing over the third partition 1700". . Accordingly, in the first member 911 to the fourth member 914, the wave or vibration between the second partition 1700 ′ and the third partition 1700 ″ is not affected by the first region L and/or the second region. Since what is transmitted to (R) can be adjusted, a display device having more improved sound output characteristics can be provided.

The first member 911 and the second member 912 may be disposed symmetrically with respect to the first sound generating device 1300, or may be disposed asymmetrically. For example, the first member 911 or the second member 912 may be disposed above or below the third member 913 or the fourth member 914 based on the first sound generating device 1300. have. In FIG. 10A, it is illustrated 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. The present invention is not limited thereto, and one or more of the first member 911 and the third member 913 may be configured. For example, only one of the first member 911 and the second member 912 may be configured, or one of the third member 913 and the fourth member 914 may be configured. When the first member 911 and the second member 912 are configured as one or the third member 913 and the fourth member 914 are configured as one, the first member 911 and the third member 913 are It may be disposed symmetrically with respect to the first sound generating device 1300. For example, the first member 911 and the third member 913 may be disposed on the same line as the first sound generating device 1300 based on the first sound generating device 1300. As another example, the first member 911 and the third member 913 may be disposed on the same line as the second sound generating device 1300 ′ based on the second sound generating device 1300 ′. When the first member 911 and the second member 912 are configured as one or the third member 913 and the fourth member 914 are configured as one, the first member 911 and the third member 913 are It may be arranged asymmetrically with respect to the first sound generating device 1300. For example, based on the first sound generating device 1300, the first member 911 is disposed above the first sound generating device 1300, and the third member 913 is the first sound generating device 1300. Can be placed under the. As another example, the first member 911 is disposed above the second sound generating device 1300 ′, and the third member 913 is a second sound generating device ( 1300') can be placed below.

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

The shapes of the first pad 811 to fourth pad 814, the shape of the seventh pad 821 to the tenth pad 824, and the shape of the first member 911 to fourth member 914 are square Alternatively, it may be a square with a rounded end, but 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, wave phenomenon can be reduced, and peak and dip phenomena caused by standing waves can be reduced, thereby improving sound output characteristics. I can make it. Further, by configuring the material of the partition and the pad differently, the wave phenomenon can be reduced and the generation of abnormal sounds can be prevented, so that the sound output characteristics can be improved. And, by further configuring the member, 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 without the description of the same contents as those described in FIGS. 8A to 10C. For example, a description of the sound generating device and the pad may be omitted or briefly described. A description of the partition, the pad, and the member will be described using FIG. 11A as an example, and the description may be equally applied to FIGS. 11B and 11C.

11A to 11C, in order to reduce a peak or dip phenomenon caused by standing waves generated in the vertical direction of the first and second sound generating devices, a pad may be formed on at least one side of the first partition 1700. I can. For example, the first partition 1700 is composed of a first side and a second side perpendicular to the first side, and a first pad 811 and a seventh pad 821 are formed on the first side. I can. A second pad 812 and an eighth pad 822 may be further formed on a side of the first partition 1700 facing the first side. A third pad 813, a fourth pad 814, a ninth pad 823, and a tenth pad 824 may be formed on the second side of the first partition 1700. 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 in FIGS. 8A to 8C, so detailed description here Can be omitted or briefly described.

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

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

The at least one eleventh pad 825 or the at least one twelfth pad 826 may be formed of a material different 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 formed 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 are the second partition 1700' or It may be formed of a material different from the third partition 1700". For example, the first to sixth pads 811, 812, 813, 814, 815, 816, and the seventh to twelfth pads 821 , 822, 823, 824, 825, and 826 may be formed of a single-sided tape, which may be a foam material capable of absorbing an impact upon contact with the display panel 100. Foam material Otherwise, unwanted abnormal noise may appear due to contact with the display panel 100. The single-sided tape may be made of, for example, polyurethane, polyolefin, and polyethylene. The first partition 1700, the first to sixth pads 811, 812, 813, 814, 815, and 816, and the seventh to twelfth pads 821, 822, 823, When 824, 825, and 826 are made of different materials, they may be the same material and may have different adhesion strength, or may be different materials and may have different adhesion strength, but are not limited thereto. The first to sixth pads 811, 812, 813, 814, 815, 816, and the first partition 1700 and the third partition 1700" in the first partition 1700 and the second partition 1700'. ), when 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 pull of the display panel 100 may be reduced. , Wave phenomenon can be prevented.

At least one first member 911 or at least one second member 912 may be further disposed on one or more sides of the second partition 1700 ′. At least one third member 913 or at least one fourth member 914 may be further disposed on one or more sides of the third partition 1700". A description of the first to fourth members is provided in FIG. 10A. To 10c, the detailed description is 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, wave phenomenon can be reduced, and peak and dip phenomena caused by standing waves can be reduced, thereby improving sound output characteristics. I can make it. Further, by configuring the material of the partition and the pad differently, the wave phenomenon can be reduced and the generation of abnormal sounds can be prevented, so that the sound output characteristics can be improved. And, by further configuring the member, the sound output characteristics can be further improved.

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

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

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

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

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

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

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

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

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

According to some embodiments of the present specification, at least one sound generating device may include one or more of a circle, an ellipse, 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 including a first region, a second region, and a third region, a first region, a second region, and a third region. At least one sound generating device disposed in the area, a support member disposed on the rear surface of the display panel, disposed on the rear surface of the display panel, and spaced apart from at least one sound generating device, 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, a coupling member for coupling the at least one sound generating device and the support member may be further included, and the connection portion may be between the plate and the coupling member.

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

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

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

According to some embodiments of the present specification, at least one seventh pad disposed on the second area and disposed on the first side, and at least one eighth pad disposed on the side facing the at least one eighth pad. And at least one seventh pad or at least one eighth pad may be made of the same material as at least one first pad.

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

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

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

According to some embodiments of the present specification, at least one is disposed in the third area and disposed on one side of the second partition. A first member or at least one second member may be further included, and at least one first member or at least one second member may be formed of the same material as at least one first pad.

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

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

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

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

Claims (30)

A display panel that displays an image;
A support member disposed on a rear surface of the display panel;
At least one sound generating device disposed on a rear surface of the display panel;
A connection part connected to the at least one sound generating device; And
And a coupling member disposed on the rear surface of the support member and connected to the connection portion,
The connection part,
A plurality of first connecting portions connected to the at least one sound generating device; And
And a second connection part disposed on the rear surface of the support member by the coupling member and connected to the plurality of first connection parts. The method of claim 1,
The connection part vibrates together with the at least one sound generating device. The method of claim 1,
The plurality of first connecting portions are spaced apart from each other with an air gap therebetween between the support member and the at least one sound generating device. The method of claim 1,
The plurality of first connecting portions are disposed on the same plane between the at least one sound generating device and the second connecting portion. The method of claim 1,
At least one of the plurality of first connection parts and the second connection part is made of a metal material or a plastic material that is deformable according to vibration of the at least one sound generating device. The method of claim 1,
The second connecting portion is disposed on a rear surface of the support member to surround the at least one sound generating device. A display panel that displays an image and includes a first area, a second area, and a third area;
At least one sound generating device disposed on a rear surface of at least one of the first region, the second region, and the third region of the display panel;
A support member disposed on a rear surface of the display panel;
A connection part connected to the at least one sound generating device; And
And a coupling member connecting the connection part to the rear surface of the support member,
The at least one sound generating device vibrates the display panel to generate sound,
The connection part,
A plurality of first connecting portions connected to the at least one sound generating device; And
And a second connecting portion disposed on a rear surface of the support member by the coupling member and connected to the plurality of first connecting portions. The method of claim 7,
At least one of the plurality of first connection parts and the second connection part is made of a metal material or a plastic material that is deformable according to vibration of the at least one sound generating device. The method of claim 7,
The plurality of first connecting portions are spaced apart from each other with an air gap therebetween between the coupling member and the at least one sound generating device. The method of claim 7,
The plurality of first connecting portions are disposed on the same plane between the at least one sound generating device and the second connecting portion. 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 disposed on the plate;
A bobbin around the magnet; And
Including a coil outside the bobbin,
The plurality of first connecting portions extend from the frame to the second connecting portions. The method of claim 11,
The plurality of first connecting portions vibrate together with the plate, the magnet, the bobbin, the coil, and the frame. The method of claim 11,
The coupling member includes a nut and a screw, and the plurality of first connecting portions are between the screw and the frame. The method of claim 11,
The second connecting portion is integrally formed with the plurality of first connecting portions. The method of claim 11,
The plurality of first connecting portions are disposed between the frame and the second connecting portion to be spaced apart from each other along the periphery of the frame. The method of claim 11,
The display device of claim 1, wherein the plurality of first connecting portions have a curved shape spaced apart from each other between the frame and the second connecting portion. The method of claim 11,
The second connector is disposed on a rear surface of the support member to surround the frame. A display panel that displays an image;
A support member disposed on a rear surface of the display panel;
At least one sound generating device disposed on a rear surface of the display panel; And
And a coupling member disposed on the rear surface of the support member and connected to the at least one sound generating device,
The at least one sound generating device,
A plurality of first connecting portions connected to the frame; And
And a second connecting portion disposed on a rear surface of the support member by the coupling member and connected to the plurality of first connecting portions. The method according to any one of claims 1 to 10, and 18,
A first partition disposed between the display panel and the support member and including a first side and a second side perpendicular to the first side;
A second partition between the first area and the third area; And
The display device further comprising a third partition between the second area and the third area. The method of claim 19,
At least one first pad disposed on at least one of the first partition and the second partition in the first area, and at least one first pad disposed on at least one of the first partition and the third partition in the second area The display device further comprising at least one of the second pads. The method of claim 20,
The at least one first pad or the at least one second pad is formed of a material different from at least one of the first to third partitions. The method of claim 20,
In the third area, further comprising at least one member disposed in at least one of the second partition and the third partition,
The at least one member is formed of the same material as the first pad or the second pad. plate;
A frame on the outside of the plate;
A magnet disposed on the plate;
A bobbin around the magnet;
A coil outside the bobbin;
A plurality of first connecting portions around the frame; And
A sound generating device comprising a second connection part connected to the plurality of first connection parts. The method of claim 23,
The plurality of first connecting portions extending from the frame to the second connecting portion, the sound generating device. The method of claim 23,
The plurality of first connecting portions and the second connecting portion and disposed on the same plane, the sound generating device. The method of claim 23,
The plurality of first connecting portions are arranged to be spaced apart from each other along the periphery of the frame between the frame and the second connecting portion. The method of claim 23,
The plurality of first connection portions including a curved shape spaced apart from each other between the frame and the second connection portion, the sound generating device. The method of claim 23,
The second connecting portion is configured integrally with the plurality of first connecting portion, the sound generating device. The method of claim 23,
The second connection portion is arranged to surround the frame, the sound generating device. The method of claim 23,
At least one of the plurality of first connection parts and the second connection parts is made of a deformable metal material or plastic material.

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