Display device

Abstract

To provide a display device capable of generating a sound in the front surface and side surface directions of a display module.SOLUTION: The display device includes a display module 100 which includes a display panel configured so as to display a vide, a first vibration generating module 300-1 which is arranged in the end area EA1 of the first rear surface of the display module, and a second vibration generating module 300-2 which is arranged in the end area EA2 of the second rear surface of the display module. Each of the first vibration generating module and the second vibration generating module has a vibration generator 330 for outputting the sound to the rear surface of the display module. A first support member 500 is arranged on the rear surface side of the display module and outputs the sound outputted from the vibration generator to one side of the display module.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] This specification relates to a display device, and more specifically, to a display device having a display panel that outputs sound.

Background Art

[0002] A display device is mounted on electronic products or home appliances such as televisions, monitors, notebook computers, smartphones, tablet computers, electronic pads, wearable devices, watch phones, portable information devices, navigation devices, or vehicle control display devices, and is used as a screen for displaying images.

[0003] A display device can include a display panel that displays an image and an audio device for outputting sound related to the image.

[0004] However, since the sound output from the audio device of the display device travels behind or below the display panel, there is a problem that the sound quality deteriorates due to interference between the sounds reflected from the wall or the floor, and thus it is difficult to accurately transmit the sound, resulting in a problem that the immersion feeling of the viewer decreases.

Summary of the Invention

[0005] The inventors of this specification recognized the problems with the above-described display device, and when viewing an image from in front of the display panel, they conducted several experiments to make the traveling direction of the sound be in the front direction of the display panel, and to improve the sound quality or sound pressure. After multiple experiments, they invented a new-structured display device that can generate sound that can travel in front of the display panel and improve the sound quality.

[0006] The problem according to the embodiments of this specification is to provide a display device that can improve the sound quality and enhance the immersion feeling of the viewer as a technical problem.

[0007] The problem according to the embodiments of this specification is to provide a display device capable of generating sound in the front direction and the side direction of a display module.

[0008] In addition to the technical problems of the present invention described above, other features and advantages of the present invention will be clearly understood by those of ordinary skill in the technical field to which the present invention pertains from the following description and such description and explanation.

[0009] A display device according to some embodiments of this specification can include a display module including a display panel configured to display an image, a structure disposed on the back side of the display module, and a vibration generator disposed on the structure so as not to be parallel to the back of the display module.

[0010] A display device according to some embodiments of this specification includes a display module including a display panel configured to display an image, a first vibration generation module disposed in a first back region of the display module, and a second vibration generation module disposed in a second back region of the display module. Each of the first and second vibration generation modules can include a vibration generator configured to output sound toward the back of the display module, and a structure disposed on the back side of the display module and configured to output the sound output from the vibration generator to one side of the display module.

[0011] Specific matters according to various forms of this specification other than the solutions to the problems mentioned above are included in the following description and drawings.

[0012] A display device according to some embodiments of this specification can output sound in the front direction and the side direction of the display module.

[0013] The display device according to some embodiments of the present specification can improve the sound in the bass range to the treble range.

[0014] The display device according to some embodiments of the present specification can reduce the thickness of the end of the display device.

[0015] The problems to be solved, the means for solving the problems, and the content of the effects mentioned above do not specify the essential features of the claims, and the scope of rights of the claims is not limited by the embodiments described in this specification.

Brief Description of the Drawings

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Embodiments for Carrying Out the Invention

[0017] The advantages and features of the present specification, and the methods for achieving them, will become clear by referring to an example described in detail below together with the accompanying drawings. However, the present specification is not limited to the embodiments disclosed below, but is realized in various different forms. Merely, the present embodiments are provided to complete the disclosure of the present specification and to fully inform those having ordinary knowledge in the technical field to which the present specification belongs of the scope of the invention. The present specification is defined only by the scope of the claims.

[0018] For the purpose of explaining an example of the present specification, the shapes, sizes, ratios, angles, numbers, etc. shown in the figures are exemplary, and the present specification is not limited to the matters shown in the figures. The same reference numerals throughout the specification refer to the same components. Also, in the explanation of the present specification, when it is determined that a specific explanation of a related known technology makes the gist of the present invention unnecessarily ambiguous, the detailed explanation thereof is omitted.

[0019] When terms such as "including", "having", and "consisting of" mentioned in this specification are used, other parts can be added unless "only" is used. When expressing a component in the singular, it includes the case of including a plurality unless there is a particularly explicit description.

[0020] When interpreting a component, it is interpreted as including the range of error even without a separate explicit description.

[0021] When it is an explanation about the positional relationship, for example, when the positional relationship between two parts is described by "on ~", "above ~", "below ~", "beside ~", etc., one or more other parts can also be located between the two parts unless "immediately" or "directly" is used.

[0022] When it is an explanation about the relationship of time, for example, when the temporal front-back relationship is described by "after ~", "subsequent to ~", "next to ~", "before ~", etc., it can include the case where it is not continuous unless "immediately" or "directly" is used.

[0023] The first, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, the first component mentioned below may be the second component within the technical idea of the present invention.

[0024] The term "at least one" must be understood to include all combinations that can be presented from one or more related items. For example, the meaning of "at least one of the first item, the second item, and the third item" can be considered to include not only each of the first item, the second item, or the third item alone, but also all combinations of two or more items presented from among the first item, the second item, and the third item.

[0025] The features of each of several embodiments of this specification can be partially or wholly combined or combined with each other, enabling various technical linkages and drives, and each example can be implemented independently of each other or together in a related relationship.

[0026] Hereinafter, an example of a display device according to an embodiment of this specification will be described in detail with reference to the attached drawings. When adding reference numerals to the components of each figure, for the same components, even if they are shown on other figures, they can have the same numerals as much as possible. And the scale of the components shown in the attached drawings may have a scale different from the actual one for convenience of explanation and is not limited to the scale shown in the figure.

[0027] The display device according to an embodiment of this specification can include a vibration generation module. When configured with an acoustic generation device as the vibration generation module, there is a problem that it is difficult to ensure the acoustic in the high-frequency band due to the complex structure in the display device. To solve this, it can further include a piezoelectric vibration device made of a piezoelectric element or a piezoelectric material having a strong piezoelectric effect (or inverse piezoelectric characteristic) in the high-frequency band. When configuring a piezoelectric vibration device in the display device for acoustic output, there is a problem that the cost of the display device increases and a separate configuration for realizing an acoustic signal in the piezoelectric vibration device is required, resulting in an increase in cost. Therefore, the inventors of this specification conducted several experiments to realize the acoustic in the high-frequency band without configuring a piezoelectric vibration device in the display device. Through a plurality of experiments, a display device with a new structure was invented. This will be described below.

[0028] FIG. 1 is a diagram showing a display device according to an embodiment of this specification, and FIG. 2 is a cross-sectional view taken along line I-I' shown in FIG. 1.

[0029] Referring to FIGS. 1 and 2, the display device according to the embodiments of the present specification can output sound (S1) by the vibration of the display module 100 for displaying an image. For example, the image can include an electronic image or a digital image, etc. For example, in the display device, the display module 100 can vibrate by a vibration generating device (or a sound generating device) to generate sound (S1). The sound (S1) generated by the vibration of the display module 100 can be output in front of the screen (FD) of the display device. Therefore, the display device according to the embodiments of the present specification uses the display module 100 as a diaphragm for sound generation or sound output, and outputs sound (S1) in front of the screen (FD) of the display module 100, so that more accurate sound transmission is possible, the sound quality is improved, and the immersion feeling of the viewer can be enhanced.

[0030] The display device according to the embodiments of the present specification can include a display module 100 and a vibration generating device 300.

[0031] The display module 100 can be configured to display an image. The display module 100 can be configured to display an image and output sound in response to the vibration of the vibration generating device 300. The display module 100 can be configured to output sound in response to the vibration of the vibration generating device 300 when no image is being displayed.

[0032] The display module 100 can be a liquid crystal display module, but is not limited thereto. For example, the display module 100 can be a display module such as a light emitting display module, an electrophoretic display module, a micro light emitting diode display module, an electronic wetting display module, or a quantum dot light emitting display module.

[0033] The display module 100 according to the embodiments of this specification may include a display panel configured to display images. The display panel may be, but is not limited to, a liquid crystal display panel. For example, the display panel may be a light-emitting display panel, an electrophoretic display panel, a micro light-emitting diode display panel, an electronic wetting display panel, or a quantum dot light-emitting display panel.

[0034] The back surface (or rear surface) of the display module 100 according to the embodiments of this specification may include an intermediate region (MA) and an edge region (EA). For example, the back surface region of the display module 100 may be divided into an intermediate region (MA) (or back intermediate region) and an edge region (EA) (or back frame region).

[0035] The vibration generating device 300 may be configured on the back surface (or back surface region) of the display module 100. For example, the vibration generating device 300 may be arranged along the edge region (EA) of the back surface of the display module 100. The vibration generating device 300 may output sound or sound pressure to the back surface region of the display module 100. The vibration generating device 300 according to the embodiments of this specification can vibrate according to an externally input acoustic signal (or voice signal) to generate sound, and output the sound in the front direction and the side direction of the display module 100. For example, the vibration generating device 300 can generate sound pressure by vibrating the edge region (EA) of the display module 100 in response to an acoustic signal, and generate sound (S1) by vibrating the edge region (EA) of the display module 100 through this sound pressure. In addition, the sound generated by the vibration of the vibration generating device 300 can be output in the front direction of the display module 100 after being reflected (or diffracted) along the side direction of the display module 100. For example, the sound due to the sound pressure output from the vibration generating device 300 can be output in the front direction and the side direction of the display module 100.

[0036] The vibration generating device 300 according to an embodiment of the present specification may include at least one vibration generating module 300-1, 300-2 disposed along an end region (EA) of the back surface of the display module 100. The vibration generating device 300 according to an example may include a first vibration generating module 300-1 and a second vibration generating module 300-2 disposed along the end region (EA) of the display module 100.

[0037] The first and second vibration generating modules 300-1, 300-2 may be arranged symmetrically or asymmetrically about the center of the display module 100 with respect to the first direction (X) (or horizontal direction) of the display module 100. For example, the first vibration generating module 300-1 may be disposed in a first back end region (EA1) of the end region (EA) of the back surface of the display module 100, and the second vibration generating module 300-2 may be disposed in a second back end region (EA2) parallel to the first back end region (EA1) of the end region (EA) of the back surface of the display module 100. For example, when viewed from the front of the display module 100, the first back end region (EA1) may be a left end region (or right end region) of the display module 100, and the second back end region (EA2) may be a right end region (or left end region) of the display module 100, but is not necessarily limited thereto.

[0038] The display device according to an embodiment of the present specification may further include a first support member 500 disposed on the back surface of the display module 100.

[0039] The first support member 500 may include any one or more of a plastic material, a metal material, or a glass material, but is not limited thereto. For example, the first support member 500 may be represented by a back cover, a system back cover, a system housing, a set cover, a rear reset cover, an outermost set cover, a product cover, or an outermost product cover, etc., but is not limited thereto.

[0040] The first support member 500 can be configured to house the display module 100 in which the vibration generating device 300 is disposed, or to cover the back surface of the display module 100 in which the vibration generating device 300 is disposed. Further, the first support member 500 can be configured to surround at least one or more side surfaces of the display module 100. For example, the first support member 500 can include an acoustic guide structure that guides the sound or sound pressure generated by the vibration of the vibration generating device 300 in the front direction (FD) or the side direction of the display module 100.

[0041] The first support member 500 according to the embodiment of the present specification can include a first portion 510 and a second portion 530. The first portion 510 can be a back cover portion. The second portion 530 can be a side cover portion.

[0042] The first portion 510 can cover the back surface (or the back region) of the display module 100. The first portion 510 can be configured to cover the entire back surface (or the back region) of the display module 100. For example, the first portion 510 can be spaced apart from the back surface of the display module 100 so as to have a preset interval (or distance). An air gap (AG) can be disposed between the first portion 510 and the back surface of the display module 100. The air gap (AG) can be a first gap.

[0043] The second part 530 can be configured to surround the side surface of the display module 100. The second part 530 can be connected to the first part 510. The second part 530 can be separated from one side or side surface of the display module 100 so as to have a preset interval (or distance) and not be in direct contact with one side or side surface of the display module 100. The second part 530 can be an acoustic guide structure embodied to guide the sound or sound pressure generated by the vibration of the vibration generating device 300 in the front direction (FD) of the display module 100. For example, the second part 530 can be bent from the first part 510 in the thickness direction (Z) of the display module 100. For example, the second part 530 can be represented by an acoustic guide or an acoustic guide member, etc., and is not limited thereto.

[0044] The first support member 500 according to the embodiment of the present specification can further include a third part 550 between the first part 510 and the second part 530. The third part 550 can be an inclined part. The third part 550 can be inclined or tilt from the first part 510 overlapping the end of the vibration generating device 300 toward the second part 530. For example, the angle between the first part 510 and the third part 550 can be 45 degrees or less. Therefore, by including the third part 550 overlapping the end of the vibration generating device 300, the first support member 500 can reduce the thickness of the end part of the vibration generating device 300 and the overlapping display device.

[0045] The display device according to the embodiment of the present specification can further include a frame gap (EG) embodied between one side or side surface of the display module 100 and the first support member 500. The frame gap (EG) can be a border gap, a border space, a second gap, an acoustic space, or a second space, etc., and is not limited to the terms.

[0046] The frame gap (EG) can be configured between the side surface of the display module 100 and the second portion 530 of the first support member 500. The distance (or the shortest distance) between one side or the side surface of the display module 100 and the second portion 530 of the first support member 500 for the frame gap (EG) can be 1 to 3 mm, but is not limited thereto. When the frame gap (EG) exceeds 3 mm, the bezel width of the display device may increase. The frame gap (EG) is generated along with the vibration of the vibration generating device 300, and can be an acoustic emission space (or an acoustic output portion) where the sound output in the side direction of the vibration generating device 300 is output in the front direction of the display module 100. For example, the sound generated by the vibration of the vibration generating device 300 can be output to the frame gap (EG) through the direction (or the diagonal direction) between the side direction of the vibration generating device 300 and the front direction of the display module 100 while being repeatedly reflected (or diffracted) between the back surface of the display module 100 and the vibration generating device 300. The sound output to the frame gap (EG) can be output in the front direction of the display module 100 through the frame gap (EG), or can be output in the front direction of the display module 100 after being reflected (or diffracted) at least once or more between one side or the side surface of the display module 100 and the second portion 530 of the first support member 500. For example, the sound output through the frame gap (EG) can be expressed as frame sound, edge sound, or reinforcing sound, etc., but is not limited thereto.

[0047] Therefore, the display device according to the embodiments of the present specification can output the sound (S1) generated by the vibration of the display module 100 due to the sound from the vibration generating device 300 disposed in the end region (EA) on the back surface of the display module 100. In the display device according to the embodiments of the present specification, at least a part of the sound in the high frequency band among the sounds output from the vibration generating device 300 is reflected (or diffracted) in the side direction of the display module 100 between the display module 100 and the vibration generating device 300, and can be output in the front direction (FD) of the display module 100 through the frame gap (EG). Therefore, the display device according to the embodiments of the present specification can improve the sound characteristics in the high frequency band by the sound output in the front direction (FD) of the display module 100 through the frame gap (EG).

[0048] FIG. 3 is an exploded view of the display device according to the embodiments of the present specification, FIG. 4 is a view showing the vibration generating device disposed on the second support member shown in FIG. 3, and FIG. 5 is a cross-sectional view taken along line II-II' shown in FIG. 3.

[0049] Referring to FIGS. 3 to 5, the display device according to the embodiments of the present specification may include a display module 100, a display panel 110, a panel guide 130, and a second support member 150.

[0050] The display panel 110 may be, but is not limited to, a liquid crystal display panel. For example, the display panel 110 may be a display panel such as a light emitting display panel, an electrophoretic display panel, a micro light emitting diode display panel, an electronic wetting display panel, or a quantum dot light emitting display panel.

[0051] When the display panel 110 is a liquid crystal display panel, the display module 100 may further include a backlight module 120 disposed between the display panel 110 and the second support member 150.

[0052] The display panel 110 according to the embodiments of this specification may include a first substrate 111, a second substrate 113, a second polarizing member 115, and a first partial polarizing member 117.

[0053] The first substrate 111 may be an upper substrate or an array substrate of thin film transistors, and may include a pixel array (or display unit or display area) having a plurality of pixels formed in pixel regions intersected by a plurality of gate lines and / or a plurality of data lines. Each of the plurality of pixels may include a thin film transistor connected to a gate line and / or a data line, a pixel electrode connected to the thin film transistor, and a common electrode formed adjacent to the pixel electrode to which a common voltage is supplied.

[0054] The first substrate 111 may further include a pad portion provided at a first end (or a first non-display portion) and a gate driving circuit provided at a second end (or a second non-display portion).

[0055] The pad portion can supply signals supplied from the outside to the pixel array and / or the gate driving circuit. For example, the pad portion may include a plurality of data pads connected to a plurality of data lines via a plurality of data link lines and / or a plurality of gate input pads connected to the gate driving circuit via a gate control signal line. As an example, the first end of the first substrate 111 including the pad portion may protrude from one side or surface corresponding to the first end of the second substrate 113, and the pad portion may be exposed in the back direction toward the second support member 150. For example, the size of the first substrate 111 may have a size larger than that of the second substrate 113, but is not limited thereto.

[0056] The gate driving circuit according to the embodiments of the present specification can be built-in (or integrated) at the second end of the first substrate 111 so as to be connected to a plurality of gate lines. For example, the gate driving circuit can be composed of a shift register including transistors formed by the same process as the thin film transistors provided in the pixel region. The gate driving circuit according to another example can be embodied in the form of an integrated circuit without being built into the first substrate 111 and can also be included in the panel driving circuit.

[0057] The second substrate 113 is a lower substrate or a color filter array substrate, and can include a pixel pattern including an opening region overlapping the pixel region formed on the first substrate 111, and a color filter layer formed in the opening region. The second substrate 113 according to the embodiments of the present specification can have a size smaller than that of the first substrate 111, but is not limited thereto. For example, the second substrate 113 can overlap the remaining portion of the first substrate 111 except the first end. The second substrate 113 can be joined or attached to the remaining portion of the first substrate 111 except the first end with a liquid crystal layer sandwiched by a sealant.

[0058] The liquid crystal layer can be composed of liquid crystal in which the alignment direction of liquid crystal molecules changes due to an electric field formed by a data voltage applied to the pixel electrode and a common voltage for each pixel by being interposed between the first substrate 111 and the second substrate 113.

[0059] The second polarizing member 115 is a lower polarizing member, and can be attached to the lower surface of the second substrate 113 to polarize the light incident from the backlight module 120 and traveling through the liquid crystal layer.

[0060] The first polarizing member 117 is an upper polarizing member, and can be attached to the upper surface of the first substrate 111 to polarize the light transmitted through the first substrate 111 and emitted to the outside.

[0061] The display panel 110 according to the embodiments of this specification can display an image by the light transmitted through the liquid crystal layer by driving the liquid crystal layer by an electric field formed for each pixel by a data voltage and a common voltage applied to each pixel.

[0062] Since the first substrate 111 which consists of an array substrate of thin film transistors constitutes the video display surface in the display panel 110 according to the embodiments of this specification, the entire front surface can be exposed to the outside without being blocked by a separate mechanism.

[0063] In the display panel 110 according to other embodiments of this specification, the first substrate 111 can consist of a color filter array substrate, and the second substrate 113 can consist of an array substrate of thin film transistors. For example, the display panel 110 according to another example can have a form in which the display panel 110 according to one example is inverted upside down. In this case, the pad portion of the display panel 110 according to another example can be blocked by a separate mechanism.

[0064] The display module 100 according to the embodiments of this specification can further include a buffer member 119. The buffer member 119 can be formed to surround at least one or more side surfaces of the display panel 110. The buffer member 119 can be formed to cover each side surface and each corner of the display panel 110. The buffer member 119 can serve to protect the side surface of the display panel 110 from an external impact or to prevent light leakage from the side surface of the display panel 110. The buffer member 119 according to one example can be made of a silicone-based or ultraviolet (UV) curable sealing agent (or resin). For example, the buffer member 119 can be made of a colored resin or a light-blocking resin for preventing light leakage from the side surface.

[0065] A part of the upper surface of the buffer member 119 according to the embodiment of the present specification can be covered by the first polarizing member 117. The joint surface between the buffer member 119 and the first substrate 111 or the boundary between the buffer member 119 and the first substrate 111 can be hidden by the extension of the first polarizing member 117 so as not to be exposed in front of the display device where the viewer is located. For example, the extension of the first polarizing member 117 extends long from the surface corresponding to the outer surface of the first substrate 111 so as to cover a part of the front surface of the buffer member 119 and is attached to a part of the front surface of the buffer member 119. If the buffer member 119 is not formed, the front surface of the display panel 110 is directly exposed in front of the display device without being blocked by a separate mechanism, so that a light leakage phenomenon may occur on the side surface of the display panel 110. Therefore, the buffer member 119 can be configured to prevent the light leakage phenomenon on the side surface of the display panel 110 and protect the side surface of the display panel 110 in a display device having a structure that exposes the front surface or the entire front surface of the display panel 110 forward in order to eliminate or minimize the bezel width of the display device. Not limited to this, the buffer member 119 can also be omitted.

[0066] The backlight module 120 is disposed on the back surface of the display panel 110 and can irradiate light on the back surface of the display panel 110. The backlight module 120 according to the embodiment of the present specification can include a light guide plate 121, a light source unit, a reflective sheet 123, and an optical sheet unit 125.

[0067] The light guide plate (or light guide member) 121 is disposed on the second support member 150 so as to overlap the display panel 110 and can include a light incident surface provided on at least one side. The light guide plate 121 can include a light transmissive plastic or glass material. The light guide plate 121 can cause the light incident from the light source unit through the light incident surface to travel (or emit light) toward the display panel 110.

[0068] The light source unit can irradiate light onto the light incident surface provided on the light guide plate 121. The light source unit can be arranged on the second support member 150 so as to overlap with the first end of the display panel 110. The light source unit according to the embodiment of the present specification can include a plurality of light emitting diode elements mounted on a printed circuit board for the light source to irradiate light onto the light incident surface of the light guide plate 121.

[0069] The reflective sheet 123 can be arranged on the second support member 150 so as to cover the back surface of the light guide plate 121. The reflective sheet 123 can minimize light loss by reflecting the light incident from the light guide plate 121 back toward the light guide plate 121.

[0070] The optical sheet unit 125 can be arranged on the front surface of the light guide plate 121 to improve the luminance characteristics of the light emitted from the light guide plate 121. The optical sheet unit 125 according to the embodiment of the present specification can include a diffusion sheet, a first prism sheet, and a second prism sheet. For example, the optical sheet unit 125 can be configured as a single layer including a diffusion sheet, a first prism sheet, and a second prism sheet. It is not limited thereto, and can be composed of a combination of laminations of one or more of a diffusion sheet, a prism sheet, a double brightness enhancement film, and a lenticular sheet, or a single composite sheet having light diffusion and light condensing functions.

[0071] The panel guide (or panel support portion) 130 can be arranged in the end region (EA) on the back surface of the display panel 110. The panel guide 130 can support the end region (EA) on the back surface of the display panel 110. The panel guide 130 can be supported or housed on the second support member 150 so as to overlap with the end region (EA) on the back surface of the display panel 110. The panel guide 130 can be arranged under the back surface of the display panel 110 so as not to protrude outside each side surface of the display panel 110.

[0072] The panel guide 130 according to the embodiments of this specification may include a guide frame (or panel support frame) 131 and guide side portions 133. For example, the panel guide 130 may have a cross-sectional structure in the shape of "┓" or "┏" due to the coupling structure of the guide frame 131 and the guide side portions 133, and is not limited to the shape.

[0073] The guide frame 131 can be connected or coupled to the end region (EA) of the back surface of the display panel 110 and supported by the second support member 150. For example, the guide frame 131 may have a rectangular belt (or perimeter or belt) form having an opening that overlaps the remaining intermediate region (MA) excluding the end region (EA) of the back surface of the display panel 110, and is not limited to the shape. The guide frame 131 may have a size equal to or smaller than the size of the display panel 110 so as not to protrude outside each side surface of the display panel 110. For example, the opening of the guide frame 131 may have the same size as or a larger size than the pixel array (or display portion) provided on the display panel 110.

[0074] The guide frame 131 can be in direct contact with the uppermost surface of the backlight module 120, for example, the uppermost surface of the optical sheet portion 125, or can be spaced apart from the uppermost surface of the optical sheet portion 125 by a certain distance.

[0075] The guide side portions 133 can be connected to the guide frame 131 to wrap one side or side surface of the second support member 150. For example, the guide side portions 133 can be bent from the guide frame 131 toward the side surface of the second support member 150 to surround the side surface of the second support member 150 or be surrounded by the side surface of the second support member 150. The guide side portions 133 can be surrounded by the first support member 500. For example, the guide side portions 133 can be surrounded by the second portion 530 of the first support member 500.

[0076] The panel guide 130 according to the embodiments of the present specification can be made of a plastic material, a metal material, or a mixed material of a plastic material and a metal material, and is not limited thereto. For example, the panel guide 130 can serve as a vibration transmission member that transmits the vibration of the sound wave generated by the vibration generating device 300 to the end region (EA) of the display panel 110. Therefore, the panel guide 130 can transmit the vibration of the sound wave generated by the vibration generating device 300 to the display panel 110 without loss while maintaining the rigidity of the display panel 110. For example, the panel guide 130 can include a metal material, and is not limited thereto, in order to transmit the vibration of the sound wave generated by the vibration generating device 300 to the display panel 110 while maintaining the rigidity of the display panel 110.

[0077] The panel guide 130 according to the embodiments of the present specification can be disposed in the end region (EA) on the back surface of the display panel 110. For example, the panel guide 130 can be connected or coupled to the end region (EA) on the back surface of the display panel 110 via the first connecting member 140.

[0078] The first connecting member 140 can be disposed between the end region (EA) on the back surface of the display panel 110 and the guide frame 131 of the panel guide 130 to dispose or couple the display panel 110 to the panel guide 130. The first connecting member 140 according to the embodiments of the present specification can include an acrylic-based or urethane-based adhesive member, and is not limited thereto. For example, the first connecting member 140 can include an acrylic-based adhesive member having relatively excellent adhesive strength and high hardness so that the vibration of the panel guide 130 is well transmitted to the display panel 110. In this case, the first connecting member 140 can include a double-sided foam adhesive pad having an acrylic-based adhesive layer or an acrylic-based adhesive resin cured layer.

[0079] The front surface of the first connecting member 140 according to the embodiment of the present specification can be disposed on the second substrate 113 or the second polarizing member 115 of the display panel 110. The first connecting member 140 can be directly coupled to the end region (EA) of the back surface of the second substrate 113 in order to improve the adhesive force with the display panel 110. In this case, the first connecting member 140 is disposed in the end region (EA) of the back surface of the second substrate 113 and surrounds the side surface of the second polarizing member 115, thereby preventing side light leakage generated by the second polarizing member 115.

[0080] The first connecting member 140 can have a certain thickness (or height). Thereby, a sound transmission space (STS) can be provided between the display panel 110 and the backlight module 120. The first connecting member 140 according to the embodiment of the present specification can be formed in a four-sided sealed or closed loop form on the guide frame 131 of the panel guide 130, but is not limited thereto. In this case, the first connecting member 140 provides a sealed sound transmission space (STS) between the rearmost surface of the display panel 110 and the uppermost surface of the backlight module 120 facing each other across the opening of the panel guide 130, thereby preventing (or minimizing) leakage (or loss) of the sound pressure transmitted to the sound transmission space (STS). The sound transmission space (STS) can be a sound pressure generation space where sound pressure is generated by the vibration of the backlight module 120 or a panel vibration space that smooths the vibration of the display panel 110 due to the sound pressure.

[0081] The second support member 150 can be disposed on the back surface of the display module 100. The second support member 150 can be configured to be disposed on the rearmost surface of the display module 100 while supporting the panel guide 130. Also, the second support member 150 can support the panel guide 130 and can support the backlight module 120. And the second support member 150 can support the vibration generating device 300. For example, the second support member 150 can be a support cover, a bottom cover, a cover bottom, or an inner cover, etc., but is not limited thereto.

[0082] The second support member 150 according to the embodiment of the present specification can serve as a diaphragm and can include, but is not limited to, a metal material, a metal alloy material, or a non-ferrous metal material.

[0083] According to the embodiment of the present specification, the second support member 150 can be made of one or more materials among iron (Fe), aluminum (Al), magnesium (Mg) alloy, magnesium lithium (Li) alloy, aluminum (Al) alloy, and electrolytically galvanized steel sheet, but is not limited thereto. For example, the electrolytically galvanized steel sheet can be an electrolytically galvanized steel sheet (Electrolytically Galvanized Steel Sheet or ElectroGalvanized Coil or ElectroGalvanized Iron) obtained by electrolytically plating zinc (Zn).

[0084] According to the embodiment of the present specification, when the second support member 150 is made of a material including a non-ferrous metal, the acoustics in the low frequency band of the vibration generating device 300 can be further improved. For example, when the second support member 150 is made of an iron metal, vibration loss may occur due to the magnetic field of the vibration generating device 300, so the acoustic characteristics of the vibration generating device 300 may deteriorate. For example, the low frequency band may be 200 Hz or less, but is not limited thereto.

[0085] The second support member 150 according to the embodiment of the present specification can include a first portion 151 that realizes the back surface of the display module 100 and a second portion 153 disposed in an end region of the first portion 151. The second portion 153 can support the panel guide 130.

[0086] The first part 151 can be arranged to cover the back surface of the backlight module 120 of the display module 100. The first part 151 can support the backlight module 120. The first part 151 can be configured to include a plate-like structure. The first part 151 can support the backlight module 120 of the display module 100 and support the vibration generating device 300. For example, the first part 151 can be configured to transmit the sound vibration generated by the vibration of the vibration generating device 300 to the reflection sheet 123 of the backlight module 120 by contacting the back surface of the reflection sheet 123.

[0087] The first part 151 can include an intermediate region (MA) corresponding (or overlapping) with the intermediate region of the display module 100 and an end region (EA) corresponding (or overlapping) with the end region (EA) of the display module 100. For example, the first part 151 can be expressed as, but not limited to, a bottom, a lower part, a rear surface part, a support plate, a flat plate, a plate structure, or a cover plate.

[0088] The second part 153 can be bent from the end of the first part 151 to support the panel guide 130. The second part 153 can provide a backlight storage space on the first part 151 and surround one or more of the side surfaces of the backlight module 120 stored (or supported) in the backlight storage space. The second part 153 can transmit the sound vibration generated in the first part 151 by the vibration generating device 300 to the panel guide 130. For example, the second part 153 can be expressed as, but not limited to, a side part, a side surface part, a side wall part, a support side wall, a side wall structure, or a cover side wall.

[0089] The second part 153 can be surrounded by the panel guide 130. For example, the second part 153 can be surrounded by the guide side part 133 of the panel guide 130.

[0090] The second support member 150 according to an embodiment of the present specification may further include a third portion 155. The third portion 155 can reinforce the rigidity of the second support member 150, and thus may be a reinforcing portion or a rigidity reinforcing portion, but is not limited thereto.

[0091] The third portion 155 according to an embodiment of the present specification can be disposed between the first portion 151 and the second portion 153. For example, the third portion 155 can be formed in a region (or a connection region) where the first portion 151 and the second portion 153 intersect. As an example, the third portion 155 can be formed along an end region (EA) of the first portion 151. For example, the third portion 155 can protrude in a rear direction so as to have an inclined surface that is inclined from one side or the tip of the first portion 151. When the second support member 150 includes the third portion 155, the second portion 153 can be connected to the tip of the third portion 155. For example, the second portion 153 can be connected to one side of the third portion 155.

[0092] The first portion 151 of the second support member 150 according to another example can include a cross-sectional structure having a concave curved surface shape. The second support member 150 can support the backlight module 120 and the panel guide 130 in a form of a concave curved surface. The display panel 110 can be bent into a concave curved surface shape and supported by the panel guide 130. Therefore, when the first portion 151 of the second support member 150 has a cross-sectional structure having a concave curved surface shape, an internal air gap is provided between the light guide plate 121 and the reflection sheet 123 of the backlight module 120, and the internal air gap will serve as a resonance chamber. Thereby, the acoustic characteristics in the low frequency band generated in the display module 100 can be improved by the vibration of the vibration generating device 300. For example, the second support member 150 including the first portion 151 having a cross-sectional structure having a concave curved surface shape can be applied to a curved surface type display device.

[0093] The vibration generating device 300 according to the embodiment of this specification may include first and second vibration generating modules 300-1 and 300-2 respectively arranged in the back region of the display module 100.

[0094] The first vibration generating module 300-1 can be arranged in the end region (EA1) of the first back surface of the display module 100. For example, the first vibration generating module 300-1 can be arranged or coupled to the end region (EA1) of the first back surface of the second support member 150 corresponding to or overlapping the end region (EA1) of the first back surface of the display module 100.

[0095] The first vibration generating module 300-1 can be configured to vibrate by an acoustic signal and output an acoustic (or sound wave) to the end region (EA1) (or the left end region) of the first back surface among the end regions (EA) of the display module 100. The acoustic generated by the first vibration generating module 300-1 is propagated (or transmitted) to the end region (EA1) of the first back surface of the display module 100, and by vibrating the end region (EA1) of the first back surface of the display module 100, an acoustic (S1) can be generated and output in front of the display panel 110. Also, at least a part (S2) of the acoustic in the high-frequency band among the acoustic generated by the first vibration generating module 300-1 can be reflected in the side direction of the display module 100 in the space between the end region (EA1) of the first back surface of the display module 100 and the first vibration generating module 300-1, and output in the front direction of the display module 100. For example, the first vibration generating module 300-1 can implement the left acoustic (or the first acoustic) of the display device, but is not limited thereto.

[0096] The second vibration generating module 300-2 can be disposed in the second back end region (EA2) of the display module 100. For example, the second vibration generating module 300-2 can be disposed or coupled to the second back end region (EA2) of the second support member 150 corresponding to or overlapping with the second back end region (EA2) of the display module 100.

[0097] The second vibration generating module 300-2 can be configured to vibrate by an acoustic signal and output an acoustic (or sound wave) to the second back end region (EA2) (or the right end region) of the end region (EA) of the display module 100. The acoustic generated by the second vibration generating module 300-2 is propagated (or transmitted) to the second back end region (EA2) of the end region (EA) of the display module 100, and vibrates the second back end region (EA2) of the display module 100, thereby generating an acoustic (S1) output in front of the display panel 110. Also, at least a part (S2) of the high-frequency band acoustic among the acoustic generated by the second vibration generating module 300-2 can be reflected (or diffracted) in the side direction of the display module 100 in the space between the second back end region (EA2) of the display module 100 and the second vibration generating module 300-2, and output in the front direction of the display module 100. For example, the second vibration generating module 300-2 can implement the right acoustic (or the second acoustic) of the display device, but is not limited thereto.

[0098] Each of the first and second vibration generating modules 300-1 and 300-2 can include a structure 310 and a vibration generator 330.

[0099] The structure 310 is disposed on the back of the display module 100 and can be configured to output the acoustic output from the vibration generator 330 in the side direction of the display module 100.

[0100] The structure 310 according to the embodiments of this specification can be expressed as, but is not limited to, a sound emission supporter, an acoustic emission supporter, an acoustic guide frame, a sound emission guide frame, or an acoustic support frame, etc.

[0101] The structure 310 is disposed in the end region (EA) of the back surface of the display module 100 and can support the vibration generator 330. For example, the structure 310 can be disposed in the end region (EA) of the back surface of the second support member 150.

[0102] The structure 310 according to the embodiments of this specification can be disposed in the end region (EA) of the back surface of the display module 100. For example, the structure 310 can be supported or connected to the end region (EA) of the back surface of the display module 100 via the second connecting member 400. For example, the structure 310 can be supported or connected to the end region (EA) of the back surface of the first portion 151 of the second support member 150 via the second connecting member 400.

[0103] The second connecting member 400 can be disposed between the first portion 151 of the second support member 150 and the structure 310. The second connecting member 400 can dispose or couple the structure 310 to the first portion 151 of the second support member 150. The second connecting member 400 can include an adhesive resin or a double-sided tape, a double-sided foam tape, a double-sided foam pad, or a double-sided foam pad tape having an adhesive layer, and is not limited thereto. The adhesive resin or adhesive layer of the second connecting member 400 according to the embodiments of this specification can include, but is not limited to, an acrylic-based or urethane-based adhesive substance. For example, the adhesive resin or adhesive layer of the second connecting member 400 can include a urethane-based adhesive substance having relatively soft properties compared to an acrylic-based adhesive substance having relatively high hardness properties in order to prevent or minimize the transmission of the vibration of the display module 100 to the structure 310.

[0104] The second connecting member 400 can be configured to have an opening or an open area in order to solve the problem that the sound generated by the vibration generating device 300 is trapped between the second support member 150 and the structure 310 and not output. For example, the second connecting member 400 can include a side surface having an opening or an open area. For example, the second connecting member 400 can have a structure with an open side surface. For example, the sound generated by the vibrator 330 can be output in the side surface direction of the display module 100 through the surface on one side of the second connecting member 400, thereby solving the problem that the sound in the high frequency band cannot be output, and thus the acoustic characteristics in the high frequency band of the display device can be improved. For example, the high frequency band can be 3 kHz or more, and is not necessarily limited thereto, and can be 5 kHz or more.

[0105] The structure 310 of the first vibration generating module 300-1 can be arranged or coupled to the end region (EA1) of the first back surface of the second support member 150. The structure 310 of the second vibration generating module 300-2 can be arranged or coupled to the end region (EA2) of the second back surface of the second support member 150. For example, the structure 310 of the first vibration generating module 300-1 can be a first structure or a first acoustic structure, and the structure 310 of the second vibration generating module 300-2 can be a second structure or a second acoustic structure.

[0106] The structure 310 can provide a first gap space (GS1) between the back surface of the display module 100 and the vibrator 330. For example, the structure 310 can provide a first gap space (GS1) between the end region (EA) of the back surface of the second support member 150 and the vibrator 330. The first gap space (GS1) can be expressed as a sound generation space, a sound pressure space, a sound emission space, an acoustic emission space, or a resonance cavity, etc., and is not limited thereto.

[0107] The structure 310 can support the vibration generator 330. The structure 310 can be configured such that part of the sound (S2) generated by the vibration generator 330 is repeatedly reflected (or diffracted) in the first gap space (GS1) and output in the lateral direction of the display module 100. For example, the structure 310 can be arranged such that the vibration generator 330 is non-parallel to the back surface of the display module 100 or the back surface of the second support member 150. For example, the structure 310 can support the vibration generator 330 such that the vibration generator 330 is non-parallel to the back surface of the display module 100 or the back surface of the second support member 150. For example, the structure 310 can support the vibration generator 330 while tilting it from the back surface of the display module 100.

[0108] The structure 310 according to the embodiments of the present specification can include a support part 311, an acoustic guide part 313, and an acoustic emission part 315.

[0109] The support part 311 can be arranged on the back surface of the display module 100. For example, the support part 311 can be arranged between the back surface of the display module 100 and the vibration generating device 300. The support part 311 can be configured to support the vibration generator 330. The support part 311 according to the embodiments of the present specification can support the vibration generator 330 so as to tilt from the back surface of the display module 100 by including a support surface (or an inclined surface) inclined so as to be non-parallel to the back surface of the second support member 150.

[0110] The support surface (or inclined surface) of the support part 311 can be inclined at an angle of 5 degrees or less with respect to the back surface of the second support member 150, or can be tilted. Thereby, the support surface (or inclined surface) of the support part 311 can support the vibration generator 330 so as to be non-parallel to the back surface of the display module 100 or the back surface of the second support member 150.

[0111] The support part 311 can include an opening that overlaps with the vibration generator 330. For example, the opening of the support part 311 can be configured to overlap with the remaining area excluding the end area of the vibration generator 330.

[0112] The acoustic guide part 313 can extend from the support part 311 to one side or the side surface of the display module 100 along the first direction (X). The acoustic guide part 313 can extend from the support part 311 along the first direction (X) and be arranged in the peripheral area of the back surface of the second support member 150. The acoustic guide part 313 according to the embodiment of the present specification can guide the sound (S2) generated by the vibration of the vibration generator 330 supported by the support part 311 to travel in the side surface direction of the display module 100. According to the embodiment of the present specification, based on the thickness direction (Z) of the display module 100, the thickness of the acoustic guide part 313 can gradually increase from the acoustic emission part 315 towards the support part 311 along the first direction (X).

[0113] The acoustic emission part 315 can be configured at one end of the acoustic guide part 313 to be parallel to the second direction (Y) (or the longitudinal direction) that intersects the first direction (X). The acoustic emission part 315 can be configured to output the sound (S2) traveling through the acoustic guide part 313 in the front surface direction of the display module 100.

[0114] The acoustic emission part 315 according to the embodiment of the present specification can include an acoustic emission guide 315a and an acoustic emission port 315b.

[0115] The sound emission guide 315a can be configured to protrude from one side or the tip of the sound guide part 313 along the thickness direction (Z) of the display module 100. The sound emission guide 315a can include an inclined surface that reflects the sound (S2) traveling through the sound guide part 313 toward the sound emission port 315b. For example, the sound emission guide 315a can have a triangular cross-sectional structure, but is not limited thereto. The apex of the sound emission guide 315a having a triangular cross-sectional structure can be spaced apart from one side or the side surface of the display module 100 for the output of the sound (S2). For example, the sound emission guide 3155a can be expressed as a protruding part, a triangular protruding chip, or a sound emission chip, etc., but is not limited thereto.

[0116] The sound emission port 315b can be arranged between the sound emission guide 315a and the display module 100 along the second direction (Y). For example, the sound emission port 315b can include a slit or a slot form that extends long along the second direction (Y) between the sound emission guide 315a and the side surface of the display module 100.

[0117] Each of the vibrators 330 of the first and second vibration generation modules 300-1 and 300-2 can be arranged non-parallel to the back surface of the display module 100. For example, each of the vibrators 330 of the first and second vibration generation modules 300-1 and 300-2 can be configured to be supported or coupled to the corresponding structure 310.

[0118] The vibrator 330 according to the embodiment of the present specification can be arranged or coupled to the structure 310 so as to be non-parallel to the back surface region of the display module 100. For example, the vibrator 330 can be arranged or coupled to the structure 310 so as to be non-parallel to the back surface region of the second support member 150. For example, the distance between the back surface region of the second support member 150 and the vibrator 330 can increase along the first direction (X) toward one side or the side surface of the display module 100.

[0119] The vibration generator 330 according to the embodiments of the present specification can be disposed on or coupled to the structure 310, vibrate by an acoustic signal, and output sound pressure or sound to the display module 100. For example, the vibration generator 330 is inclined with respect to the rear region of the second support member 150 or vibrates by an acoustic signal in an inclined state, so that sound can be output to the first gap space (GS1) between the rear surface of the second support member 150 and the structure 310, or sound pressure can be generated. Thereby, the sound output from the vibration generator 330 inclined with respect to the rear region of the second support member 150 can be repeatedly reflected (or diffracted) within the first gap space (GS1) between the rear surface of the second support member 150 and the structure 310 and travel in the lateral direction of the display module 100. Thereby, the sound due to the sound pressure output from the vibration generator 330 can be output in the front direction and the lateral direction of the display module 100. For example, at least a part of the high-frequency band sound in the sound generated by the vibration generator 330 is repeatedly reflected (or diffracted) within the first gap space (GS1) and is output in the lateral direction of the display module 100 through one side surface of the second connecting member 400 and the sound outlet 315b, so that the acoustic characteristics of the high-frequency band of the display device can be improved.

[0120] The vibration generator 330 can include, but is not limited to, a sound actuator or a sound exciter, and can include an acoustic generator that uses a coil (or voice coil) and a magnet.

[0121] Each vibration generator 330 of the first and second vibration generation modules 300-1 and 300-2 according to the embodiments of the present specification can include a module frame 331, a bobbin 332, a magnet member 333, and a coil 334. And each vibration generator 330 of the first and second vibration generation modules 300-1 and 300-2 according to the embodiments of the present specification can further include a center pole 335 and a damper 336.

[0122] The module frame 331 (or base plate) can be arranged on the back surface of the display module 100. The module frame 331 (or base plate) can be supported by the structure 310. For example, the module frame 331 can be supported on or coupled to the support portion 311 of the structure 310. The module frame 331 according to the embodiments of the present specification can include a first plate 331a, a second plate 331b, and a bracket 331c.

[0123] The first plate 331a can support the magnet member 333 and can be a lower plate. The first plate 331a can be a frame body and is not limited to the terms.

[0124] The second plate 331b can have a cylindrical form with a hollow portion and can be arranged at the end of the front surface of the first plate 331a. The first plate 331a and the second plate 331b can form one housing having a "U" shape. For example, the first plate 331a and the second plate 331b are not limited to the terms and can be expressed by other terms such as a yoke.

[0125] The bracket (or fixed bracket) 331c can protrude from one side or side surface of the second plate 331b. The bracket 331c can be supported on or coupled to the support portion 311 of the structure 310 by a connecting member of the module. Thereby, the module frame 331 can be supported on or coupled to the support portion 311 of the structure 310.

[0126] The connecting member of the module according to the embodiment of this specification can be a screw or a bolt that passes through the bracket 331c and is fastened to the support portion 311 of the structure 310. In this case, an elastic member such as a buffer pad can be disposed between the support portion 311 of the structure 310 and the bracket 331c. The elastic member can prevent or minimize the vibration of the display module 100 from being transmitted to the module frame 331.

[0127] The connecting member of the module according to the embodiment of this specification can support or couple the bracket 331c or the module frame 331 to the support portion 311 of the structure 310. For example, the connecting member of the module can include an adhesive member disposed between the support portion 311 of the structure 310 and the bracket 331c. For example, the adhesive member can include, but is not limited to, a double-sided tape, a double-sided foam tape, a double-sided foam pad, a double-sided foam pad tape, a double-sided adhesive pad, a double-sided adhesive gap pad, or a double-sided adhesive foam pad.

[0128] The bobbin 332 is disposed on the module frame 331 and can vibrate the display module 100. For example, the bobbin 332 can vibrate the display module 100 by outputting sound or generating sound pressure in the first gap space (GS1) between the back surface of the second support member 150 and the structure 310. For example, the bobbin 332 can vibrate the first portion 151 of the second support member 150.

[0129] The bobbin 332 according to the embodiments of this specification can be arranged so as to be separated from the back surface of the display module 100. The bobbin 332 can include a cylindrical shape having a hollow portion 332a. For example, the bobbin 332 can be composed of an annular structure made of a material processed from pulp or paper, aluminum, magnesium or their alloys, synthetic resins such as polypropylene, or polyamide-based fibers, etc., and is not limited thereto. The bobbin 332 can output sound or generate sound pressure in the first gap space (GS1) and vibrate the second support member 150 by vibrating, for example, reciprocating up and down, by magnetic force.

[0130] The bobbin 332 according to the embodiments of this specification can have a circular form or an elliptical form (ellipse or oval), but is not limited thereto. The bobbin 332 in an elliptical form can include an ellipse, a rectangle with rounded corners, or a non-circular curved shape having a width different from its height, but is not limited thereto. For example, for the bobbin 332 in an elliptical form, the ratio of the major axis diameter to the minor axis diameter can be configured to be 1.3:1 to 2:1. The bobbin 332 in an elliptical form can improve the sound in a higher frequency band than a bobbin in a circular form, and may have less heat generation due to vibration, so it can have excellent heat dissipation characteristics.

[0131] The magnet member 333 can be arranged on the module frame 331 so as to be accommodated in the hollow portion 332a of the bobbin 332. The magnet member 333 can be a permanent magnet inserted into the hollow portion 332a of the bobbin 332, but is not limited thereto.

[0132] The coil 334 is wound around the outer peripheral surface of the bobbin 332 and can receive an external acoustic signal (or voice signal). The coil 334 can move up and down together with the bobbin 332. When an acoustic signal (or current) is applied to the coil 334, the entire bobbin 332 can vibrate, for example, reciprocate up and down along the third direction (Z), based on Fleming's left-hand rule based on the applied magnetic field formed around the coil 334 and the external magnetic field formed around the magnet member 333. For example, the coil 334 can be represented by a voice coil or the like, but is not limited to the term.

[0133] The center pole 335 can be disposed on the magnet member 333 to guide the vibration of the bobbin 332. For example, the center pole 335 can be surrounded by the bobbin 332 by being inserted or housed in the hollow portion 332a of the bobbin 332. For example, the center pole 335 can be represented by an elevation guide or pole pieces or the like, but is not limited to the term.

[0134] The damper 336 can be disposed between the module frame 331 and the bobbin 332. The damper 336 according to the embodiment of the present specification can be disposed between the first plate 331a of the module frame 331 and the upper outer peripheral surface of the bobbin 332. The damper 336 can contract and relax by the vibration of the bobbin 332 by having a bellows (or wrinkled) structure between one end and the other end. The damper 336 can limit the vibration distance (or vertical movement distance) of the bobbin 332 through the restoring force. As an example, when the bobbin 332 vibrates more than a certain distance or vibrates less than a certain distance, the bobbin 332 can return to its original position by the restoring force of the damper 336. For example, the damper 336 can be represented by other terms such as a spider, a suspension, or an edge, but is not limited to the term.

[0135] The vibrator 330 according to the embodiments of this specification can be represented by an inner magnet type (or micro type) in which the magnet member 333 is inserted into the hollow portion 332a of the bobbin 332.

[0136] The vibrator 330 according to the embodiments of this specification can be represented by an outer magnet type (or dynamic type) in which the magnet member 333 is arranged to surround the outside of the bobbin 332. The outer magnet type vibrator 330 is the same as the inner magnet type vibrator 330 except that the magnet member 333 is provided between the first plate 331a and the second plate 331b and the center pole 335 is provided on the first plate 331a so as to be inserted (or accommodated) into the hollow portion 332a of the bobbin 332. Therefore, the description thereof will be omitted.

[0137] The vibrator 330 according to the embodiments of this specification can further include a bobbin protection member 337 disposed between the upper portion of the bobbin 332 and the first portion 151 of the second support member 150.

[0138] The bobbin protection member 337 according to the embodiments of this specification can protect the bobbin 332 by being disposed on the upper portion of the bobbin 332 so as to cover the hollow portion 332a of the bobbin 332, thereby preventing deformation of the bobbin 332 due to an external impact. By embodying the bobbin protection member 337 so as to cover the hollow portion 332a of the bobbin 332, the sound pressure generated in the first gap space (GS1) can be increased due to the vibration of the bobbin 332.

[0139] The bobbin protection member 337 according to the embodiments of the present specification can be configured in the form of an injection molded product or a metal mold product. For example, the bobbin protection member 337 can be made of a fiber reinforcement, a composite resin containing a fiber reinforcement, or a metal, and in this case, it can also serve as a heat dissipation function for releasing heat generated when the vibrator 330 is driven. The fiber reinforcement can be any one of a carbon fiber reinforcement (Carbon Fiber Reinforced Plastics, CFRP), a glass fiber reinforcement (Glass Fiber Reinforced Plastics, GFRP), and a graphite fiber reinforcement (Graphite Fiber Reinforced Plastics, GFRP), or a combination thereof, etc., and is not limited thereto.

[0140] As another example, a heat dissipation member can be included between the display module 100 and the structure 310. The heat dissipation member can be made of metal. For example, the heat dissipation member can be made of aluminum (Al), copper (Cu), silver (Ag), or an alloy thereof, etc., and is not limited thereto. The heat dissipation member can be embodied as a metal plate, a heat dissipation sheet, or a heat dissipation tape. The heat dissipation member can be arranged in the same size as or larger than the vibration generator 300. As another example, the heat dissipation member can be arranged in the same size as or smaller than the second support member 150.

[0141] As shown in FIGS. 3 and 4, the vibrator 330 according to an example of the present specification can be configured in a twin type structure. The twin type structure can also be expressed as a 2 - array structure. The vibrator 330 having a twin type structure can include two sub - vibration parts 330a and 330b arranged on the module frame 331. The vibrator 330 including two sub - vibration parts 330a and 330b can be expressed as a twin type vibration device, and is not limited to the term.

[0142] The vibration generator 330 according to an example of this specification is not limited to the twin - type structure shown in FIGS. 3 and 4, and can be implemented in a single - type structure or configured in a structure of two or more arrays. For example, the vibration generator 330 can be configured in a 4 - array structure or a 6 - array structure.

[0143] The vibration generator 330 of the first vibration generation module 300 - 1 vibrates by an acoustic signal and outputs an acoustic (or sound wave) to the end region (EA1) of the first back surface of the display module 100, thereby vibrating the end region (EA1) of the first back surface of the display module 100 and outputting an acoustic (S1) in front of the display panel 110. At least a part of the high - frequency band acoustic among the acoustics output from the vibration generator 330 of the first vibration generation module 300 - 1 to the end region (EA1) of the first back surface of the display module 100 can be reflected (or diffracted) in the side direction of the display module 100 by the structure 310 of the first vibration generation module 300 - 1 and output in the side direction and the front direction of the display module 100.

[0144] The vibration generator 330 of the second vibration generation module 300 - 2 vibrates by an acoustic signal and outputs an acoustic to the end region (EA2) of the second back surface of the display module 100, thereby vibrating the end region (EA2) of the second back surface of the display module 100 and outputting an acoustic (S1) in front of the display panel 110. At least a part of the high - frequency band acoustic among the acoustics output from the vibration generator 330 of the second vibration generation module 300 - 2 to the end region (EA2) of the second back surface of the display module 100 can be reflected (or diffracted) in the side direction of the display module 100 by the structure 310 of the second vibration generation module 300 - 2 and output in the side direction and the front direction of the display module 100.

[0145] For example, when the respective oscillators 330 of the first and second vibration generation modules 300-1 and 300-2 vibrate due to an acoustic signal, the sound (or sound wave) generated by the vibration of the oscillator 330 is output to the first gap space (GS1), and the sound generated by the vibration of the backlight module 120 due to the sound in the first gap space (GS1) is output to the sound transmission space (STS). The sound (S1) generated by the vibration of the end regions (EA1, EA2) of the display panel 110 due to the sound in the sound transmission space (STS) can be output in front of the display panel 110. At least a part of the high-frequency band sound among the sounds output from the oscillator 330 to the first gap space (GS1) can be reflected (or diffracted) by the structure 310 in the side direction of the display module 100 and output in the side direction and the front direction of the display module 100.

[0146] Therefore, according to this specification, at least a part of the high-frequency band sound among the sounds generated from the respective oscillators 330 of the first and second vibration generation modules 300-1 and 300-2 is output in the side direction of the display module 100, thereby improving the acoustic characteristics of the high-frequency band of the display device. Also, according to this specification, due to the inclined oscillator 330, the reflection region (or reflection space) of the sound generated between the display module 100 and the vibration generation modules 300-1 and 300-2 increases, and the high-frequency band sound reflected (or diffracted) in the reflection region increases, so that the reflection characteristics (or diffraction characteristics) of the high-frequency band sound output in the side direction of the display module 100 can be improved. Thereby, by improving the acoustic output characteristics output in the side direction of the display module 100, the acoustic characteristics of the high-frequency band of the display device can be further improved.

[0147] Therefore, the display device according to the embodiments of the present specification can output the sound (S1) generated by the vibration of the display module 100 due to the sound from the vibrator 330 of the vibration generating device 300 disposed in the end region (EA) on the back surface of the display module 100. At least a part of the sound in the high frequency band among the sounds output from the vibrator 330 of the vibration generating device 300 can be guided in the side direction of the display module 100 by the structure 310 of the vibration generating device 300 and output in the side direction and the front direction of the display module 100. Therefore, the display device according to the embodiments of the present specification can improve the sound characteristics in the high frequency band by the sound (S2) output in the side direction of the display module 100.

[0148] In addition, in the display device according to the embodiments of the present specification, the vibrator 330 of the vibration generating device 300 is disposed non-parallel to or inclined with respect to the back surface of the display module 100, so that the reflection region of the sound (S2) reflected (or diffracted) between the display module 100 and the vibration generating device 300 increases, and the sound in the high frequency band reflected (or diffracted) in the reflection region increases, thereby improving the reflection characteristics (or diffraction characteristics) of the sound in the high frequency band output in the side direction of the display module 100. As a result, the sound output characteristics in the side direction of the display module 100 are improved, and the sound characteristics in the high frequency band of the display device can be further improved.

[0149] FIG. 6 is a diagram showing the structure of the vibration generating module according to the embodiments of the present specification, and FIG. 7 is a cross-sectional view taken along line III-III' shown in FIG. 6.

[0150] Referring to FIGS. 4 to 7, the structure 310 of the vibration generating modules 300-1 and 300-2 according to the embodiments of the present specification can include a support portion 311, an acoustic guiding portion 313, and an acoustic emitting portion 315.

[0151] The support part 311 can be disposed in the back region of the second support member 150. The support part 311 can be supported or connected to the back region of the second support member 150 via the second connection member 400.

[0152] The support part 311 according to the embodiments of this specification can include first to third support parts 311a, 311b, 311c, and an opening part 311d.

[0153] The first support part 311a can be disposed along the first direction (X) and configured to support the first side of the vibration generator 330. The second support part 311b can be disposed in parallel with the first support part 311a and configured to support the second side of the vibration generator 330.

[0154] Each of the first and second support parts 311a, 311b according to the embodiments of this specification can have a first length parallel to the first direction (X), a second length parallel to the second direction (Y), and a thickness parallel to the third direction (Z). The thickness of each of the first and second support parts 311a, 311b can become gradually thicker or increase towards one side or the side surface of the display module 100 along the first direction (X).

[0155] Each of the first and second support parts 311a, 311b according to the embodiments of this specification can include a first surface and a second surface. The first surface can be adjacent to the back region of the display module 100. The second surface can support the vibration generator 330 and be implemented non-parallel to the back region of the display module 100. The second surface can support the vibration generator 330.

[0156] The first surface of each of the first and second support parts 311a, 311b can be parallel to the back of the display module 100.

[0157] The second surface of each of the first and second support parts 311a and 311b can be inclined or tilted from the back region of the display module 100, opposite to the first surface. The second surface of each of the first and second support parts 311a and 311b can be an upper surface, a support surface, or an inclined surface.

[0158] The second surface of each of the first and second support parts 311a and 311b can be inclined or tilted at an angle (θ1) of 5 degrees or less with respect to the back surface of the display module 100. Thereby, the second surface of each of the first and second support parts 311a and 311b can arrange the vibration generator 330 non-parallel to the back surface of the display module 100 or the back surface of the second support member 150. For example, in each of the first and second support parts 311a and 311b, the angle (θ1) between the first surface and the second surface can be 1 to 5 degrees, but is not limited thereto.

[0159] In each of the first and second support parts 311a and 311b, the thickness between the first surface and the second surface can gradually become thicker or increase as it goes to one side or the side surface of the display module 100 along the first direction (X). For example, in each of the first and second support parts 311a and 311b, the distance between the first surface and the second surface can gradually increase as it goes from the third support part 311c toward the acoustic guide part 313 along the first direction (X).

[0160] The third support part 311c is arranged along the second direction (Y) and can be arranged between one side of the first support part 311a and one side of the second support part 311b. The third support part 311c can be configured to support the third side of the vibration generator 330.

[0161] The third support part 311c according to the embodiment of the present specification can have a first length parallel to the first direction (X), a second length parallel to the second direction (Y), and a thickness parallel to the third direction (Z). The thickness of the third support part 311c can gradually become thicker or increase as it goes to one side or the side surface of the display module 100 along the first direction (X).

[0162] The third support portion 311c can include a first surface adjacent to the rear region of the display module 100 and a second surface non-parallel to the rear region of the display module 100. The second surface can support the third side of the vibration generator 330. For example, in the third support portion 311c, the distance between the first surface and the second surface can gradually increase along the first direction (X) from the third support portion 311c toward the acoustic guide portion 313.

[0163] The connecting portion between the first support portion 311a and the third support portion 311c can have a curved form. The connecting portion between the second support portion 311b and the third support portion 311c can have a curved form. The first surface of each of the first to third support portions 311a, 311b, 311c can be disposed on the rear surface of the display module 100 or the rear surface of the second support member 150. The first surface of each of the first to third support portions 311a, 311b, 311c can be supported or connected to the rear surface of the display module 100 or the rear surface of the second support member 150 via the second connecting member 400. The second surface of each of the first to third support portions 311a, 311b, 311c can be disposed at the rear ends of the first to third sides of the vibration generator 330. The second surface of each of the first to third support portions 311a, 311b, 311c can form the rear ends of the first to third sides of the vibration generator 330. Thereby, the vibration generator 330 can be non-parallel to the rear surface of the display module 100 or the rear surface of the second support member 150.

[0164] The opening 311d can overlap with the vibration generator 330 and be surrounded by the first to third support portions 311a, 311b, 311c. The opening 311d can overlap with the remaining portion of the vibration generator 330 excluding the rear ends of the first to third sides. For example, the opening 311d can provide a first gap space (GS1) between the inclined vibration generator 330 and the rear surface (or the rear surface of the second support member 150) of the display module 100.

[0165] The support portion 311 according to the embodiment of the present specification may further include a first stopper 311e disposed on the third support portion 311c.

[0166] The first stopper 311e can be disposed on the third support portion 311c and configured to define the arrangement region of the vibration generator 330 supported by the first to third support portions 311a, 311b, 311c. The first stopper 311e according to the embodiment of the present specification can be configured to protrude vertically from the end portion of the third support portion 311c. The first stopper 311e can prevent the flow of the vibration generator 330 by wrapping the side surface on the third side of the vibration generator 330 supported to be inclined with respect to the first to third support portions 311a, 311b, 311c. For example, both end portions of the first stopper 311e can include curved surface portions corresponding to the corner portions of the curved surface of the vibration generator 330.

[0167] The vibration generator 330 supported by the support portion 311 is inclined from the back surface of the display module 100 (or the back surface of the second support member 150), so that the distance between the vibration generator 330 and the back surface of the display module 100 gradually increases along the first direction (X) towards one side or the side surface of the display module 100, or gradually increases along the first direction (X) towards the acoustic guide portion 313 from the third support portion 311c.

[0168] The acoustic guide portion 313 can be configured to extend from the support portion 311 along the first direction (X) and be disposed in the peripheral region of the back surface of the second support member 150.

[0169] The acoustic guide portion 313 can have a first length parallel to the first direction (X), a second length parallel to the second direction (Y), and a thickness parallel to the third direction (Z).

[0170] According to the embodiments of the present specification, the first length of the acoustic guide part 313 can be 3 mm or more and less than or equal to half of the length of the vibration generator 330. When the first length of the acoustic guide part 313 is less than 3 mm, it may not be possible to obtain the reflection characteristics for the acoustic waves in the high frequency band due to the decrease in the length of the reflection region (or reflection space) of the acoustic waves traveling in the side direction of the display module 100.

[0171] According to the embodiments of the present specification, the uppermost surface of the acoustic guide part 313 can be located on the same plane as the uppermost surface of the module frame 331 of the vibration generator 330. For example, the uppermost surface of the acoustic guide part 313 does not protrude above the uppermost surface of the module frame 331 of the vibration generator 330 supported by the support part 311, and can coincide with the uppermost surface of the module frame 331 or be located below the uppermost surface of the module frame 331.

[0172] According to the embodiments of the present specification, the thickness of the acoustic guide part 313 can gradually increase from the acoustic emission part 315 towards the support part 311 along the first direction (X) in order to reduce the thickness of the end of the display device. For example, when the thickness of the acoustic guide part 313 is the same along the first direction (X) and the uppermost surface of the acoustic guide part 313 coincides with the uppermost surface of the module frame 331, the thickness of the end of the display device can increase depending on the thickness of the end region of the display module 100. For example, the thickness of the acoustic guide part 313 is the same along the first direction (X) and is configured to become gradually thinner towards one side or the side surface of the display module 100. As a result, the thickness of the end of the first support member 500 covering the end region (EA) of the display module 100 can be reduced. Thereby, the thickness of the end portion of the display device overlapping the end region (EA) of the display module 100 can be reduced. For example, the end of the back surface of the first support member 500 overlapping the acoustic guide part 313 can be configured to include an inclined third part 550 between the first part 510 and the second part 530. Thereby, the thickness of the end portion of the display device can be reduced.

[0173] The acoustic guide part 313 according to the embodiment of this specification can include a first extension part 313a, a second extension part 313b, and a cover part 313c.

[0174] The first extension part 313a can extend from the first support part 311a of the support part 311 along the first direction (X). The second extension part 313b can extend from the second support part 311b of the support part 311 in parallel with the first extension part 313a. For example, each of the first and second extension parts 313a, 313b can extend from one side or the tip of the support part 311 so as to have a length of 3 mm or more and less than half of the length of the vibration generator 330 along the first direction (X).

[0175] Each of the first and second extension parts 313a, 313b can include a first surface adjacent to the back region of the display module 100 and a second surface that supports the cover part 313c and is non-parallel to the back region of the display module 100.

[0176] The first surface of each of the first and second extension parts 313a, 313b can be parallel to the back of the display module 100. The second surface of each of the first and second extension parts 313a, 313b can be inclined or tilted non-parallel to the back of the display module 100, opposite to the first surface. In each of the first and second extension parts 313a, 313b, the thickness between the first surface and the second surface can gradually increase along the first direction (X) as it goes to one side or the side surface of the display module 100.

[0177] The cover part 313c can be disposed on the first extension part 313a and the second extension part 313b to cover the space between the first extension part 313a and the second extension part 313b. The space provided between the first extension part 313a and the second extension part 313b on the back surface of the display module 100 (or the back surface of the second support member 150) while being covered by the cover part 313c can be a second gap space (GS2) connected (or communicated) with a first gap space (GS1) between the back surface of the display module 100 and the vibration generator 330. The sound output from the vibration generator 330 to the first gap space (GS1) can travel (or propagate) toward the sound emission part 315 while being reflected (or diffracted) at least once or more in each of the first gap space (GS1) and the second gap space (GS2).

[0178] The cover part 313c according to the embodiment of the present specification can have a first length parallel to the first direction (X), a second length parallel to the second direction (Y), and a thickness parallel to the third direction (Z).

[0179] The first length of the cover part 313c can be 3 mm or more and less than or equal to half of the length of the vibration generator 330. The thickness of the cover part 313c is embodied such that it gradually decreases as it goes to one side or side surface of the display module 100 along the first direction (X), thereby reducing the thickness of the end portion of the first support member 500 that covers the end region (EA) of the display module 100. As a result, the thickness of the end portion of the display device that overlaps with the end region (EA) of the display module 100 can be reduced. For example, the end of the back surface of the first support member 500 that overlaps with the cover part 313c can be configured to include a third portion 550 inclined between the first portion 510 and the second portion 530. Thereby, the thickness of the end portion of the display device can be reduced.

[0180] The cover part 313c can include a second stopper 313c1, a first surface 313c2, and a second surface 313c3. The first surface 313c2 can be an outer inclined surface or an inclined surface. The second surface 313c3 can be a ceiling surface.

[0181] The second stopper 313c1 can be configured to define an arrangement region of the vibration generator 330 that is arranged on the first and second extension parts 313a and 313b along the second direction (Y) and supported by the support part 311. For example, the arrangement region of the vibration generator 330 can be defined by the first stopper 311e of the support part 311 and the second stopper 313c1 of the acoustic guide part 313.

[0182] The second stopper 313c1 according to the embodiment of the present specification can prevent the flow of the vibration generator 330 by wrapping the side surface on the fourth side of the vibration generator 330 that is supported so as to incline to the support part 311. For example, both end portions of the second stopper 313c1 can include curved surface portions corresponding to the corner portions of the curved surface of the vibration generator 330.

[0183] The first surface 313c2 can be configured to incline from the uppermost surface of the second stopper 313c1 toward the second surfaces of the first and second extension parts 313a and 313b, or to be inclined. For example, the distance between the first surface 313c2 and the back surface of the display module 100 (or the back surface of the second support member 150) can gradually decrease along the first direction (X) toward one side or side surface of the display module 100. For example, the angle between the first surface 313c2 and the back surface of the display module 100 (or the back surface of the second support member 150) can be 45 degrees or less. When the angle between the first surface 313c2 and the back surface of the display module 100 (or the back surface of the second support member 150) exceeds 45 degrees, the thickness of the end portion of the display device can increase due to the increase in the thickness of the cover part 313c.

[0184] The second surface 313c3 is the lower surface of the cover part 313c and can be separated from the back surface of the display module 100 (or the back surface of the second support member 150). The second surface 313c3 can provide a second gap space (GS2) between the back surface of the display module 100 (or the back surface of the second support member 150) and the cover part 313c.

[0185] According to the embodiments of this specification, the second surface 313c3 can be configured to be parallel to the back surface of the display module 100 (or the back surface of the second support member 150), or non-parallel to the back surface of the display module 100 (or the back surface of the second support member 150). For example, the angle between the second surface 313c3 and the back surface of the display module 100 (or the back surface of the second support member 150) can be 1 to 5 degrees. For example, the angle between the second surface 313c3 and the back surface of the display module 100 (or the back surface of the second support member 150) can be the same as the angle between the back surface of the display module 100 (or the back surface of the second support member 150) and the vibration generator 330.

[0186] The sound emitting portion 315 can be configured to protrude from one side of the sound guiding portion 313, for example, from the tip, along the third direction (Z). The sound emitting portion 315 can be configured to reflect (or diffract) in the first gap space (GS1) and the second gap space (GS2) and output the sound (S2) traveling in the side surface direction of the display module 100 in the front surface direction of the display module 100. For example, the sound emitting portion 315 can be configured to reflect the sound (S2) traveling through the first and second gap spaces (GS1, GS2) in the front surface direction of the display module 100. For example, the sound emitting portion 315 can include a reflecting surface or an inclined surface that reflects the sound (S2) traveling through the first and second gap spaces (GS1, GS2) in the front surface direction of the display module 100.

[0187] The sound emitting portion 315 protrudes from one side of the sound guiding portion 313 along the third direction (Z) in parallel with the second direction (Y), for example, from the tip to the back surface side of the display module 100, so as to cover a part of the space between the back surface of the display module 100 and one side or the tip of the sound guiding portion 313. The sound (S2) traveling through the first and second gap spaces (GS1, GS2) can be output in the front surface direction of the display module 100 through the space between the back surface of the display module 100 and the sound emitting portion 315.

[0188] The acoustic emission unit 315 according to the embodiment of the present specification can include an acoustic emission guide 315a and an acoustic emission port 315b.

[0189] The acoustic emission guide 315a can protrude from one side or the tip of the acoustic guiding part 313 along the third direction (Z) in parallel with the second direction (Y) toward the back surface of the display module 100. For example, the acoustic emission guide 315a can protrude from the ceiling surface 313c3 of the cover part 313c of the acoustic guiding part 313 that overlaps with one side or the side surface of the display module 100. The acoustic emission guide 315a can be configured to cover a part of the space between the back surface of the display module 100 and one side or the tip of the acoustic guiding part 313. The acoustic emission guide 315a can be separated from one side or the side surface of the display module 100.

[0190] The acoustic emission guide 315a according to the embodiment of the present specification can include a first surface (OW) exposed outside one side or the side surface of the display module 100, and a second surface (IS) inclined from one side or the tip of the first surface (OW) adjacent to the display module 100. The first surface (OW) can be parallel to the third direction (Z). For example, the acoustic emission guide 315a can include a triangular cross-sectional structure with the second surface (IS) as an inclined surface. According to the embodiment of the present specification, the angle (θ2) between the first surface (OW) and the second surface (IS) of the acoustic emission guide 315a can be set between 45 degrees and 75 degrees so that the sound (S2) traveling through the acoustic guiding part 313 is smoothly output in the front direction of the display module 100 through the acoustic emission port 315b. For example, the angle (θ2) between the first surface (OW) and the second surface (IS) of the acoustic emission guide 315a can be set between 55 degrees and 65 degrees. For example, the acoustic emission guide 315a can include a protruding part having an angle between 45 degrees and 75 degrees. The protruding part can include a triangular protruding part (or a triangular protruding chip or a sound emission chip).

[0191] According to the embodiments of this specification, the distance (D1) between the first surface (OW) of the acoustic emission guide 315a and one side or side surface of the display module 100 may be 1 ± 0.5 mm with respect to the first direction (X) so that the sound (S2) traveling through the acoustic guide portion 313 is smoothly output in the front direction of the display module 100 through the acoustic emission port 315b. For example, with respect to the first direction (X), the distance (D1) between the first surface (OW) of the acoustic emission guide 315a and one side or side surface of the panel guide 130 may be 1 ± 0.5 mm.

[0192] According to the embodiments of this specification, the shortest distance between the first surface (OW) of the acoustic emission guide 315a and the display module 100 may be ±0.5 mm with respect to the third direction (Z) so that the sound (S2) traveling through the acoustic guide portion 313 is smoothly output in the front direction of the display module 100 through the acoustic emission port 315b. For example, with respect to the third direction (Z), the shortest distance between the first surface (OW) of the acoustic emission guide 315a and one side or side surface of the panel guide 130 may be ±0.5 mm.

[0193] The acoustic emission port 315b can be configured between the acoustic emission guide 315a and the display module 100 along the second direction (Y). For example, the acoustic emission port 315b can be a spaced-apart space between the acoustic emission guide 315a and the display module 100. For example, the acoustic emission port 315b can include a slit or slot form that extends long along the second direction (Y) between the acoustic emission guide 315a and the display module 100.

[0194] The structures 310 of the vibration generation modules 300-1 and 300-2 according to the embodiments of this specification can further include protrusions 317 and recesses 318. The protrusions 317 can be a pair. The protrusions 317 can be corner protrusions.

[0195] The pair of protruding portions 317 can protrude from the corner portions on both sides of the acoustic guide portion 313 along the third direction (Z). For example, the protruding portions 317 can protrude from the corner portions at both ends of the acoustic guide portion 313 along the third direction (Z). Based on the third direction (Z), the length of the pair of protruding portions 317 can be longer than the length of the acoustic emission guide 315a. The pair of protruding portions 317 can wrap a part of the side surface of the display module 100. For example, the inner side surfaces of the pair of protruding portions 317 can be in contact with, separated from, or spaced apart from the side surface of the display module 100. For example, the inner side surfaces of the pair of protruding portions 317 can be in contact with, separated from, or spaced apart from one side or the side surface of the panel guide 130. The pair of protruding portions 317 can block the acoustic (S2) output through the acoustic outlet 315b from being output in the second direction (Y). The pair of protruding portions 317 can define the length of the acoustic outlet 315b based on the second direction (Y).

[0196] The recess 318 can be formed concave between each of the pair of protruding portions 317 and each of the first extension portion 313a and the second extension portion 313b of the acoustic guide portion 313. By accommodating the guide side portion 133 of the panel guide 130, the recess 318 can prevent physical contact between the panel guide 130 flowing along the third direction (Z) and the structure 310. Thereby, it is possible to prevent the structure 310 from being lifted by the flow of the panel guide 130.

[0197] The structure 310 of the vibration generation modules 300-1 and 300-2 according to the embodiments of the present specification can further include an acoustic reflection prevention member 319.

[0198] The sound reflection prevention member 319 can be disposed on the third surfaces 311f and 313d of the support portion 311 and the acoustic guide portion 313, respectively, which are parallel to the first direction (X). The third surfaces 311f and 313d can be inner surfaces. For example, the sound reflection prevention member 319 can be disposed on the third surfaces 311f and 313d of the support portion 311 and the acoustic guide portion 313, respectively. The sound reflection prevention member 319 can prevent the sound in the first and second gap spaces (GS1, GS2) from being reflected by the third surfaces 311f and 313d of the support portion 311 and the acoustic guide portion 313, respectively, thereby improving the deep phenomenon of the sound. For example, the sound reflection prevention member 319 can be a sound absorption member. For example, the sound reflection prevention member 319 can be a pad, a tape, a foam tape, or a foam pad.

[0199] According to an embodiment of the present specification, the sound reflection prevention member 319 can be configured to cover any one or all of the third surfaces 311f of the first and second support portions 311a and 311b of the support portion 311 and the third surfaces 313d of the first and second extension portions 313a and 313b of the acoustic guide portion 313. For example, the sound reflection prevention member 319 can be configured in a form corresponding to the third surface 311f of the first support portion 311a and the third surface 313d of the first extension portion 313a. The sound reflection prevention member 319 can adhere to one or more or the whole of the third surface 311f of the first support portion 311a and the third surface 313d of the first extension portion 313a. Also, the sound reflection prevention member 319 can be configured in a form corresponding to the third surface 311f of the second support portion 311b and the third surface 313d of the second extension portion 313b. The sound reflection prevention member 319 can adhere to any one or more or the whole of the third surface 311f of the second support portion 311b and the third surface 313d of the second extension portion 313b.

[0200] FIG. 8 is a diagram showing a display device according to another embodiment of the present specification, FIG. 9 is an enlarged view of part A shown in FIG. 8, and FIG. 10 is a cross-sectional view taken along line IV-IV' shown in FIG. 8. This is a display device shown in FIGS. 1 to 7 with the structure of the second support member changed. Accordingly, in the following description, the second support member will be described in detail, and the remaining components will be given the same reference numerals as in FIGS. 3 to 7, and duplicate descriptions thereof will be omitted or briefly described.

[0201] Referring to FIGS. 8 to 10, in the display device according to another embodiment of the present specification, the second support member 150 may further include at least one hole 157 that overlaps with the vibration generating device 300. For example, the second support member 150 may be made of a material containing the above-described ferrous metal.

[0202] The hole 157 may be formed in the first portion 151 so as to overlap with the vibration generating device 300.

[0203] The hole 157 according to the embodiment of the present specification may be formed in the first portion 151 so as to overlap with the magnetic field region of the vibration generating device 300. The second support member 150 can support the remaining portion excluding the magnetic field region of the vibration generating device 300. The hole 157 can overlap with the magnetic field regions of the first and second vibration generating modules 300-1 and 300-2 of the vibration generating device 300. For example, the hole 157 may be configured to have a size larger than the magnetic field regions of the first and second vibration generating modules 300-1 and 300-2, respectively. Thereby, by preventing or minimizing the phenomenon that the magnetic field formed in the vibration generating device 300 is distorted by the first portion 151 of the second support member 150, the acoustic output characteristics of the vibration generating device 300, for example, the acoustic output characteristics of the first and second vibration generating modules 300-1 and 300-2, can be improved.

[0204] The hole 157 according to the embodiment of the present specification can be configured in the first part 151 so as to overlap with each of the first and second vibration generating modules 300-1 and 300-2 of the vibration generating device 300. For example, the hole 157 can overlap with the vibrators 330 respectively configured in the first and second vibration generating modules 300-1 and 300-2. For example, the hole 157 can overlap with the bobbin 332 or the magnet member 333 of the vibrator 330.

[0205] The hole 157 according to the embodiment of the present specification can have a size larger than that of the bobbin 332 or the magnet member 333 of the vibrator 330. For example, the hole 157 can have a polygonal form, a circular form, or an elliptical form having a size larger than that of the bobbin 332 or the magnet member 333, and is not limited thereto. For example, the hole 157 can be formed by a patterning process or a perforation process on the second support member 150, and is not limited thereto. For example, the hole 157 can be expressed as a first hole, a cover hole, a pattern hole, a hole pattern, a through hole, a perforated hole, etc., and is not limited thereto.

[0206] According to the embodiment of the present specification, the hole 157 can include a square form in which the corner portions are rounded into a curved form. According to an example, the hole 157 can include a main hole 157a and a sub-hole 157b. The main hole 157a can have its corner portions rounded into a curved form. The sub-hole 157b can be connected (or communicated) to each of the first and second sides of the main hole 157a along the second direction (Y). For example, the sub-hole 157b can have a semi-circular form or a semi-elliptical form having a relatively smaller size than the main hole 157a, and is not limited thereto.

[0207] The sound output by each of the first and second vibration generating modules 300-1 and 300-2 of the vibration generating device 300 can be output in the front direction of the display module 100 through the hole 157. At least a part (S2) of the sound in the high-frequency band among the sounds output by each of the first and second vibration generating modules 300-1 and 300-2 can be output in the side direction of the display module 100.

[0208] Therefore, in the display device according to another embodiment of the present specification, at least a part of the sound in the high-frequency band among the sounds generated by the vibration of the vibration generating device 300 is guided in the side direction of the display module 100 by the structure 310 of the vibration generating device 300 and output in the side direction and the front direction of the display module 100, so that the sound (S2) output in the side direction of the display module 100 can improve the acoustic characteristics of the high-frequency band. Further, the display device according to another embodiment of the present specification includes the second support member 150 having the hole 157 overlapping the magnetic field region of the vibration generating device 300, thereby preventing or minimizing the magnetic field distortion phenomenon of the vibration generating device 300 by the second support member 150, so that the acoustic output characteristics of the vibration generating device 300 can be improved. Thereby, the acoustic output characteristics due to the vibration of the vibration generating device 300 can be improved.

[0209] FIG. 11 is a diagram showing a display device according to another embodiment of the present specification, FIG. 12 is a diagram showing the hole and the plate shown in FIG. 11, and FIG. 13 is a cross-sectional view taken along line V-V' shown in FIG. 11, which is a configuration obtained by adding a plate to the display device shown in FIGS. 8 to 10. Therefore, in the following description, the plate will be described in detail, and the same reference numerals as those in FIGS. 3 to 10 will be given to the remaining configurations, and the overlapping description thereof will be omitted or briefly described.

[0210] Referring to FIGS. 11 to 13, the display device according to another embodiment of the present specification may further include a plate 700 disposed between the display module 100 and the vibration generating device 300.

[0211] The plate 700 can be disposed between each of the first and second vibration generating modules 300-1 and 300-2 of the vibration generating device 300 and the back surface of the display module 100. For example, the plate 700 can be disposed between the respective structures 310 of the first and second vibration generating modules 300-1 and 300-2 and the back surface of the display module 100. For example, the plate 700 can be disposed between the second support member 150 and the vibration generating device 300. For example, the plate 700 can be respectively disposed between the respective structures 310 of the first and second vibration generating modules 300-1 and 300-2 and the first portion 151 of the second support member 150. The plate 700 can support the respective structures 310 of the first and second vibration generating modules 300-1 and 300-2.

[0212] The plate 700 according to the embodiments of the present specification can be connected or coupled to the first portion 151 of the second support member 150 that overlaps the vibration generating device 300 to support the vibration generating device 300. For example, the plate 700 can be connected or coupled to the first portion 151 of the second support member 150 so as to cover the hole 157 of the second support member 150.

[0213] The plate 700 according to the embodiments of the present specification can be configured to have a size larger than the hole 157 of the second support member 150. For example, the plate 700 can be configured to have the same or a larger size as each of the first and second vibration generating modules 300-1 and 300-2 of the vibration generating device 300.

[0214] The plate 700 can be made of a material different from that of the second support member 150. The plate 700 according to the embodiment of this specification can be made of a non-ferrous metal. For example, when the plate 700 is made of a ferrous metal material, a magnetic field distortion phenomenon may occur in the vibration generator 300. In order to prevent or reduce the magnetic field distortion phenomenon of the vibration generator 300 caused by the plate 700, the plate 700 can be made of a non-ferrous metal material. For example, the plate 700 can be made of a material that is not an iron (Fe)-based material included in the magnet member 333 of the vibration generator 330. For example, the plate 700 can be made of one or more materials among aluminum (Al), magnesium (Mg), magnesium (Mg) alloy, magnesium lithium (Li) alloy, and aluminum (Al) alloy, and is not limited thereto. If it is a material that does not contain iron (Fe), it is possible. Therefore, by preventing or minimizing the phenomenon that the magnetic field formed in the vibration generator 300 is distorted by the second support member 150 or the plate 700, the acoustic output characteristics of the vibration generator 300, for example, the acoustic output characteristics of the first and second vibration generation modules 300-1 and 300-2 can be improved.

[0215] The plate 700 according to the embodiment of this specification can further include a communication hole 710.

[0216] The communication hole 710 can overlap with the hole 157 disposed in the second support member 150. The communication hole 710 can communicate with the hole 157 disposed in the second support member 150 and the first gap space (GS1). The communication hole 710 can be an acoustic transmission region where the sound (or sound wave) output from the vibration generator 300 is transmitted (or propagated) to the back surface of the display module 100.

[0217] The communication hole 710 according to an embodiment of the present specification may have a size relatively smaller than the hole 157 disposed in the second support member 150. The communication hole 710 according to an example may include a first length parallel to the first direction (X) and a second length longer than the first length parallel to the second direction (Y). The communication hole 710 may be configured to extend along the second direction (Y).

[0218] The communication hole 710 according to an embodiment of the present specification may have a different form from the hole 157 disposed in the second support member 150. The communication hole 710 may have a polygonal form, a circular form, or an elliptical form, and is not limited thereto. For example, the communication hole 710 may have a slit form that overlaps with the main hole 157a of the hole 157 disposed in the second support member 150, and both end portions of the communication hole 710 that overlap with the sub-hole 157b may include rounded portions in a curved surface form. According to an example, the communication hole 710 may be formed by a patterning process or a perforation process on the plate 700, and is not limited thereto. For example, the communication hole 710 may be expressed as a second hole, a connecting hole, an air hole, a pattern hole, a hole pattern, a through hole, or a perforated hole, and is not limited thereto.

[0219] The plate 700 including the communication hole 710 according to an embodiment of the present specification may be an acoustic balance member. The plate 700 may be configured to maintain a balance between the front acoustic (or transmitted acoustic) traveling in the front direction of the display module 100 and the side acoustic (or reflected acoustic) traveling in the side direction of the display module 100 among the acoustics generated from the vibration generating device 300. For example, the plate 700 may maintain the high-frequency band output (or radiation) characteristics output in the side direction of the display module 100 according to the acoustics generated by the vibration generating device 300, and maintain a balance between the acoustics transmitted (or propagated) to the display module 100 and the acoustics reflected (or diffracted) in the first gap space (GS1).

[0220] According to the embodiments of the present specification, in order to maintain the balance of the sound generated by the vibration generator 300, the communication hole 710 can overlap only a part of the magnetic field region formed in the vibration generator 300. The communication hole 710 can overlap with less than half of the magnetic field region formed in the vibration generator 300. The communication hole 710 can overlap with a part of the bobbin 332 or the magnet member 333 of the vibrator 330 configured in each of the first and second vibration generation modules 300-1 and 300-2 of the vibration generator 300. The communication hole 710 can be configured to have a size smaller than that of the bobbin 332 or the magnet member 333 of the vibrator 330 configured in each of the first and second vibration generation modules 300-1 and 300-2 of the vibration generator 300. For example, based on the length of the cross-section of the vibrator 330 along the first direction (X), the length of the cross-section of the communication hole 710 can be 40% or less of the length of the cross-section of the bobbin 332 or the magnet member 333. When the length of the cross-section of the communication hole 710 exceeds 40%, the balance between the sound transmitted (or propagated) to the display module 100 and the sound reflected (or diffracted) in the first gap space (GS1) is not maintained, and the acoustic output characteristics of the vibration generator 300 may deteriorate.

[0221] The plate 700 according to the embodiments of the present specification can be connected or coupled to the first portion 151 of the second support member 150 so as to cover the hole 157 of the second support member 150 via the third connecting member 600.

[0222] The third connecting member 600 can be disposed between the first portion 151 of the second support member 150 and the end portion of the plate 700. The third connecting member 600 can dispose or couple the plate 700 to the first portion 151 of the second support member 150. The third connecting member 600 can include, but is not limited to, a double-sided tape having an adhesive resin or an adhesive layer, a double-sided foam tape, a double-sided foam pad, or a double-sided foam pad tape. The adhesive resin or the adhesive layer of the third connecting member 600 according to the embodiments of the present specification can include, but is not limited to, an acrylic-based or urethane-based adhesive substance. For example, the adhesive resin or the adhesive layer of the third connecting member 600 can include a urethane-based adhesive substance having relatively soft characteristics compared to an acrylic-based adhesive substance having relatively high hardness characteristics in order to prevent or minimize the transmission of vibrations of the display module 100 to the vibration generator 300.

[0223] The vibration generator 300 is substantially the same as the vibration generator 300 shown in FIGS. 3 to 10 except that it is supported or connected to the plate 700 via the second connecting member 400, and thus redundant descriptions thereof are omitted or simplified.

[0224] In the vibration generator 300, the respective structures 310 of the first and second vibration generation modules 300-1 and 300-2 can be disposed on the plate 700 via the second connecting member 400. For example, the respective structures 310 of the first and second vibration generation modules 300-1 and 300-2 can be supported or connected to the plate 700 via the second connecting member 400.

[0225] In the vibration generating device 300, each of the vibrators 330 of the first and second vibration generating modules 300-1 and 300-2 can be arranged on the corresponding structure 310 to output sound toward the plate 700 and the communication hole 710 of the plate 700. A part of the sound output from the vibrator 330 is transmitted to the back surface of the display module 100 through the communication hole 710 of the plate 700 and the hole 157 of the second support member 150 respectively, and the rest of the sound output from the vibrator 330 is in the first gap space (GS1) between the plate 700 and the vibrator 330 and the second gap space (GS2) between the plate 700 and the acoustic guide portion 313 of the structure 310, and can be reflected (or diffracted) in the side direction of the display module 100 and output in the front direction of the display module 100 through the acoustic emission portion 315 of the structure 310.

[0226] The second connecting member 400 can be arranged between the plate 700 and the structure 310 to arrange or couple the structure 310 to the plate 700. The second connecting member 400 can include an adhesive resin or a double-sided tape, a double-sided foam tape, a double-sided foam pad, or a double-sided foam pad tape having an adhesive layer, and is not limited thereto.

[0227] Therefore, the display device according to other embodiments of the present specification can have the same or similar effects as the display device shown in FIGS. 8 to 10. Further, the display device according to other embodiments of the present specification includes a second support member 150 having a hole 157 that overlaps with the magnetic field region of the vibration generating device 300, and a plate 700 disposed between the second support member 150 and the vibration generating device 300, thereby preventing or minimizing the distortion phenomenon of the magnetic field of the vibration generating device 300 by the second support member 150, and improving the acoustic output characteristics of the vibration generating device 300. As a result, the acoustic output characteristics due to the vibration of the vibration generating device 300 can be improved. Further, the display device according to other embodiments of the present specification further includes a communication hole 710 disposed in the plate 700 so as to overlap with the hole 157 of the second support member 150 and overlap with less than half of the magnetic field region formed in the vibration generating device 300, thereby maintaining the acoustic balance between the front acoustic traveling in the front direction of the display module 100 and the side acoustic traveling in the side direction of the display module 100 among the sounds generated from the vibration generating device 300, so that the acoustic output characteristics of the vibration generating device 300 can be further improved. As a result, the acoustic output characteristics due to the vibration of the vibration generating device 300 can be further improved.

[0228] FIG. 14 is a view showing the back surface of a display device according to another embodiment of the present specification, FIG. 15 is a view showing a vibration generating device disposed on the second support member shown in FIG. 14, and FIG. 16 is a cross-sectional view taken along line VI-VI' shown in FIG. 14, which is a modification of the structure of the vibration generating device of the display device shown in FIGS. 3 to 7. Accordingly, in the following description, the vibration generating device will be described in detail, and the remaining configurations will be given the same reference numerals as those in FIGS. 3 to 5, and the overlapping description thereof will be omitted or briefly described.

[0229] Referring to FIGS. 14 to 16, in the display device according to another embodiment of the present specification, the vibration generating device 300 may include first and second vibration generating modules 300-1 and 300-2 respectively disposed in the back region of the display module 100.

[0230] The first vibration generating module 300-1 can be disposed in the end region (EA1) of the first back surface of the display module 100, and the second vibration generating module 300-2 can be disposed in the end region (EA2) of the second back surface of the display module 100.

[0231] Each of the first and second vibration generating modules 300-1 and 300-2 can include a structure 1310 and a vibrator 330.

[0232] The structure 1310 can be disposed in the end region (EA) of the back surface of the display module 100. The structure 1310 can be supported or connected to the end region (EA) of the back surface of the display module 100 via the second connecting member 400.

[0233] The structure 1310 can include a support portion 311, an acoustic guide portion 1313, and an acoustic emission portion 315.

[0234] The support portion 311 can be configured to support the vibrator 330. The support portion 311 according to the embodiments of the present specification can support the vibrator 330 so as to incline from the back surface of the display module 100 by including a support surface (or an inclined surface) inclined non-parallel to the back surface of the second support member 150.

[0235] The acoustic guide part 1313 can be configured to extend from the support part 311 along the first direction (X) and be arranged in the peripheral area of the back surface of the second support member 150. The acoustic guide part 1313 according to the embodiment of the present specification can guide the sound (S2) generated by the vibration of the vibration generator 330 supported by the support part 311 to travel in the side direction of the display module 100. According to an example, based on the thickness direction (Z) of the display module 100, the thickness of the acoustic guide part 1313 can gradually increase from the acoustic emission part 315 towards the support part 311 along the first direction (X). The acoustic guide part 1313 can be configured to have a length of 3 mm or more and 1.2 times or less the overall length of the vibration generator 330 along the first direction (X). Based on the first direction (X), the shortest distance (D2) between one side or the side surface of the display module 100 (or one side or the side surface of the panel guide) and the vibration generator 330 can be set to 30 to 60 mm. When the shortest distance (D2) between one side or the side surface of the display module 100 (or one side or the side surface of the panel guide) and the vibration generator 330 is 60 mm or more based on the first direction (X), the reflection characteristics of the high-frequency band sound generated between the display module 100 and the vibration generating device 300 may deteriorate. The acoustic guide part 1313 according to the embodiment of the present specification can have a thickness thinner than that of the acoustic guide part 313 described in FIGS. 3 to 5 by expanding the length along the first direction (X) compared to the acoustic guide part 313 described in FIGS. 3 to 5. Thereby, the thickness of the end portion of the display device overlapping with the end region (EA) of the display module 100 can be further reduced.

[0236] The acoustic emission part 315 can be configured on one side or the tip of the acoustic guide part 1313 to be parallel to the second direction (Y). The acoustic emission part 315 can be configured to output the sound (S2) traveling through the acoustic guide part 1313 in the front direction of the display module 100. The acoustic emission part 315 can include an acoustic emission guide 315a and an acoustic emission port 315b, which are the same as those described in FIGS. 3 to 5, so the repeated description thereof is omitted.

[0237] Each of the oscillators 330 of the first and second vibration generation modules 300-1 and 300-2 can be configured to be supported or coupled to the structure 1310 corresponding to the first and second vibration generation modules 300-1 and 300-2. The oscillator 330 can be supported or arranged by the support portion 311 so as to be inclined or tilted at an angle of 5 degrees or less with respect to the back surface of the second support member 150. For example, the oscillator 330 can be tilted at an angle of 1 to 5 degrees with respect to the back surface of the second support member 150.

[0238] The oscillator 330 can be configured to include a module frame 331, a bobbin 332, a magnet member 333, a coil 334, a center pole 335, and a damper 336. Since these are the same as those described in FIGS. 3 to 5, redundant descriptions thereof are omitted.

[0239] The oscillator 330 is not limited to the twin-type structure shown in FIGS. 3 and 4, and can be implemented in a single-type structure or configured in a structure of two or more arrays. For example, the oscillator 330 can be configured in a 4-array structure or a 6-array structure.

[0240] Therefore, in the display device according to another embodiment of the present specification, at least a part of the sound in the mid-high frequency band generated by the vibration of the vibration generating device 300 is guided in the side direction of the display module 100 by the structure 1310 of the vibration generating device 300 and output in the side direction and the front direction of the display module 100, so that the acoustic characteristics in the high frequency band can be further improved by the sound (S2) output in the side direction of the display module 100. Further, in the display device according to another embodiment of the present specification, the thickness of the end portion overlapping with the end region (EA) of the display module 100 can be further reduced by reducing the thickness of the sound guide portion 1313 of the structure 1310 configured in the vibration generating device 300.

[0241] FIG. 17 is a diagram showing the structure of the vibration generator shown in FIGS. 14 to 16, and FIG. 18 is a cross-sectional view taken along line VII-VII' shown in FIG. 17.

[0242] Referring to FIGS. 15 to 18, the structure 1310 according to another embodiment of the present specification may include a support portion 311, an acoustic guide portion 1313, and an acoustic emission portion 315.

[0243] The support portion 311 can be supported or connected to the rear region of the second support member 150 via the second connecting member 400. The support portion 311 can be configured to include the first to third support portions 311a, 311b, 311c, and the opening 311d described in FIGS. 4 to 8, which are the same as those described in FIGS. 3 to 8, so redundant descriptions thereof are omitted. Further, the support portion 311 can be further configured to include a first stopper 311e, which is the same as that described in FIGS. 3 to 8, so redundant descriptions thereof are omitted.

[0244] The acoustic guide portion 1313 can extend from the support portion 311 along the first direction (X). The acoustic guide portion 1313 can be configured to be disposed in the peripheral region of the rear surface of the second support member 150.

[0245] The acoustic guide portion 1313 can have a first length parallel to the first direction (X), a second length parallel to the second direction (Y), and a thickness parallel to the third direction (Z).

[0246] According to an embodiment of the present specification, the first length of the acoustic guide portion 1313 can be a length of 3 mm or more and 1.2 times or less the entire length of the vibration generator 330. When the first length of the acoustic guide portion 1313 is less than 3 mm, the length of the reflection region (or reflection space) of the sound traveling in the side direction of the display module 100 may decrease, and the reflection characteristics for the sound in the high frequency band may not be obtained.

[0247] The acoustic guide part 1313 according to the embodiment of this specification can include a first extension part 1313a, a second extension part 1313b, and a cover part 1313c.

[0248] The first extension part 1313a can extend from the first support part 311a of the support part 311 along the first direction (X). The second extension part 1313b can extend from the second support part 311b of the support part 311 in parallel with the first extension part 1313a.

[0249] Each of the first and second extension parts 1313a and 1313b can have a length of 3 mm or more and 1.2 times or less the overall length of the vibration generator 330 along the first direction (X).

[0250] Each of the first and second extension parts 1313a and 1313b can include a first surface and a second surface. The first surface can be adjacent to the back region of the display module 100. The second surface can be non-parallel to the back region of the display module 100. The second surface can support the cover part 1313c. The first surface of each of the first and second extension parts 1313a and 1313b can be parallel to the back of the display module 100. The second surface of each of the first and second extension parts 1313a and 1313b, contrary to the first surface, can be parallel to the back of the display module 100.

[0251] The cover part 1313c can be disposed on the first extension part 1313a and the second extension part 1313b to cover the space between the first extension part 1313a and the second extension part 1313b. The space provided between the first extension part 1313a and the second extension part 1313b above the back surface of the display module 100 (or the back surface of the second support member 150) while being covered by the cover part 1313c can be a second gap space (GS2) connected (or communicating) with a first gap space (GS1) between the back surface of the display module 100 and the vibration generator 330. The sound output from the vibration generator 330 to the first gap space (GS1) can be reflected (or diffracted) at least once or more in each of the first gap space (GS1) and the second gap space (GS2) and travel (or propagate) toward the sound emitting part 315.

[0252] The cover part 1313c according to the embodiment of the present specification can have a first length parallel to the first direction (X), a second length parallel to the second direction (Y), and a thickness parallel to the third direction (Z).

[0253] The thickness of the cover part 1313c can be embodied to gradually decrease along the first direction (X) toward one side or side surface of the display module 100. Thereby, the thickness of the end region (EA) of the display module 100 can be decreased, and the thickness of the end portion of the display device can be decreased.

[0254] The cover part 1313c can include a second stopper 1313c1, a first surface 1313c2, and a second surface 1313c3.

[0255] The second stopper 1313c1 can be configured to define an arrangement region of the vibration generator 330 disposed on the first and second extension parts 1313a and 1313b and supported by the support part 311 along the second direction (Y). For example, the arrangement region of the vibration generator 330 can be defined by the first stopper 311e of the support part 311 and the second stopper 1313c1 of the sound guide part 1313.

[0256] The second stopper 1313c1 according to the embodiment of this specification can prevent the flow of the vibration generator 330 by wrapping the side surface on the fourth side of the vibration generator 330 supported to incline on the support part 311. For example, both end portions of the second stopper 1313c1 can include curved surface portions corresponding to the corner portions of the curved surface of the vibration generator 330.

[0257] The first surface 1313c2 can be configured to incline or slope from the uppermost surface of the second stopper 1313c1 toward the second surfaces of the first and second extension parts 1313a and 1313b, respectively. For example, the distance between the first surface 1313c2 and the back surface of the display module 100 (or the back surface of the second support member 150) can gradually decrease along the first direction (X) toward one side or side surface of the display module 100. For example, the angle between the first surface 1313c2 and the back surface of the display module 100 (or the back surface of the second support member 150) can be 45 degrees or less, and for example, can be 30 degrees or less. When the angle between the first surface 1313c2 and the back surface of the display module 100 exceeds 45 degrees, the thickness of the end of the display device can increase due to the increase in the thickness of the cover part 1313c. The first surface 1313c2 can be an outer inclined surface or an inclined surface, and is not limited to the terms.

[0258] The second surface 1313c3 is the lower surface of the cover part 1313c and can be separated from the back surface of the display module 100 (or the back surface of the second support member 150). The second surface 1313c3 can provide a second gap space (GS2) between the back surface of the display module 100 (or the back surface of the second support member 150) and the cover part 1313c.

[0259] According to the embodiment of this specification, the second surface 1313c3 can be parallel to the back surface of the display module 100 (or the back surface of the second support member 150). The second surface 1313c3 can be a ceiling surface and is not limited to the terms.

[0260] The sound emitting unit 315 can be configured to protrude from one side of the sound guiding unit 1313. For example, the sound emitting unit 315 can be configured to protrude from the tip of the sound guiding unit 1313 along the third direction (Z). The sound emitting unit 315 can be configured to output the sound (S2) that travels in the side direction of the display module 100 to the front direction of the display module 100 by being reflected (or diffracted) in the first gap space (GS1) and the second gap space (GS2). The sound emitting unit 315 can include a sound emission guide 315a and a sound emission port 315b, and since these are the same as those described in FIGS. 3 to 8, redundant descriptions thereof are omitted.

[0261] The structure 1310 of the vibration generating modules 300-1 and 300-2 according to other embodiments of the present specification can further include a protrusion 317 and a recess 318. The protrusions can be a pair. The protrusion 317 can be a corner protrusion or a corner bump, and is not limited to the terms. The protrusion 317 can protrude from the corner portions on both sides of the sound guiding unit 1313. The protrusion 317 can protrude from the corner portions at both ends of the sound guiding unit 1313 along the third direction (Z). The recess 318 can be configured to be concave between each of the pair of protrusions 317 and each of the first extension 1313a and the second extension 1313b of the sound guiding unit 1313. Since the description thereof is the same as that described in FIGS. 3 to 8, redundant descriptions thereof are omitted.

[0262] The structure 1310 of the vibration generating modules 300-1 and 300-2 according to other embodiments of the present specification can further include a support portion 311 parallel to the first direction (X) and a sound reflection preventing member 319 disposed on the third surfaces 311f and 1313d of the sound guiding unit 1313, respectively. Since this is the same as that described in FIGS. 3 to 8, redundant descriptions thereof are omitted.

[0263] FIG. 19 is another cross-sectional view taken along line VI-VI' shown in FIG. 14, which shows a modified structure of the second support member in the display device shown in FIGS. 14 to 18. Accordingly, in the following description, the second support member will be described in detail, and the remaining components will be given the same reference numerals as in FIGS. 14 to 18, and duplicate descriptions thereof will be omitted or briefly described.

[0264] Referring to FIGS. 14 and 19, in the display device according to another embodiment of the present specification, the second support member 150 may further include at least one hole 157 that overlaps with the vibration generator 300. For example, the second support member 150 may be made of a material containing the above-described ferrous metal.

[0265] According to an embodiment of the present specification, the hole 157 may be formed in the first portion 151 so as to overlap with the magnetic field region of the vibration generator 300. The hole 157 may be formed in the first portion 151 of the second support member 150 so as to overlap with the bobbin 332 or the magnet member 333 of the vibrator 330 in order to prevent or minimize the phenomenon in which the magnetic field formed by the vibration generator 300 is distorted by the second support member 150 having a metallic material. The hole 157 is substantially the same except that it has a size corresponding to the extended length of the acoustic guide portion 1313 of the structure 1310 as compared with the hole described in FIGS. 8 to 10, and thus duplicate description thereof will be omitted.

[0266] According to another example, the hole 157 may have a size larger than that of the bobbin 332 or the magnet member 333 of the vibration generator 330 and may have a size smaller than the overall size of the vibration generator 330. For example, the hole 157 may be the same as or larger than the opening 311d disposed in the support portion 311 of the structure 1310 shown in FIG. 17 and may have a size smaller than the support portion 311 of the structure 1310. For example, the first portion 151 of the second support member 150 may be configured to overlap with the acoustic guide portion 1313 of the structure 1310, whereby the high-frequency sound waves reflected (or diffracted) in the second gap space (GS2) between the first portion 151 of the second support member 150 having a metallic material and the acoustic guide portion 1313 of the structure 1310 increase, thereby improving the acoustic output characteristics in the lateral direction of the display module 100.

[0267] Therefore, in the display device according to another embodiment of the present specification, at least a part of the high-frequency sound waves among the sounds generated by the vibration of the vibration generating device 300 are guided by the structure 310 of the vibration generating device 300 in the lateral direction of the display module 100 and output in the lateral direction and the front direction of the display module 100, so that the acoustic characteristics in the high-frequency band can be improved by the sound (S2) output in the lateral direction of the display module 100. Further, the display device according to another embodiment of the present specification includes the second support member 150 having the hole 157 overlapping with the magnetic field region of the vibration generating device 300, thereby preventing or minimizing the magnetic field distortion phenomenon of the vibration generating device 300 by the second support member 150, and improving the acoustic output characteristics of the vibration generating device 300, whereby the acoustic output characteristics due to the vibration of the vibration generating device 300 can be improved.

[0268] FIG. 20 is another cross-sectional view taken along line VI-VI' shown in FIG. 14, which is obtained by adding a plate to the display device shown in FIG. 19. Accordingly, in the following description, the plate will be described in detail, and the remaining components will be given the same reference numerals as those in FIGS. 14 to 19, and the overlapping description thereof will be omitted or briefly described.

[0269] Referring to FIGS. 14 and 20, the display device according to other embodiments of the present specification may further include a plate 700 disposed between the display module 100 and the vibration generator 300.

[0270] The plate 700 can be disposed between the second support member 150 and the vibration generator 300. For example, the plate 700 can be respectively disposed between each of the first and second vibration generation modules 300-1 and 300-2 of the vibration generator 300 and the first portion 151 of the second support member 150. The plate 700 can be made of a material different from that of the second support member 150. The plate 700 according to the embodiments of the present specification can be made of a non-ferrous metal. For example, when the plate 700 is made of a ferrous metal material, a magnetic field distortion phenomenon may occur in the vibration generator 300. In order to prevent or reduce the magnetic field distortion phenomenon of the vibration generator 300 caused by the plate 700, the plate 700 can be made of a non-ferrous metal material. The plate 700 is substantially the same except that it has a size corresponding to the extended length of the acoustic guide portion 1313 of the structure 1310 compared to the plate described in FIGS. 11 to 13, and thus duplicate description thereof is omitted.

[0271] The plate 700 according to the embodiments of the present specification may further include communication holes 710.

[0272] The communication hole 710 can overlap with the hole 157 disposed in the second support member 150. The communication hole 710 can communicate with the hole 157 disposed in the second support member 150 and the first gap space (GS1). According to the embodiments of the present specification, in order to maintain the balance of the sound generated by the vibration generating device 300, the communication hole 710 can overlap with only a part of the magnetic field region formed in the vibration generating device 300. The communication hole 710 can overlap with less than half of the magnetic field region formed in the vibration generating device 300. For example, based on the length of the cross section of the vibrator 330 along the first direction (X), the length of the cross section of the communication hole 710 can be 40% or less of the length of the cross section of the bobbin 332 or the magnet member 333. Since the communication hole 710 is substantially the same as the communication hole described in FIGS. 11 to 13, duplicate description thereof will be omitted.

[0273] Therefore, the display device according to other embodiments of the present specification can have the same effects as the display device shown in FIG. 19. In addition, the display device according to other embodiments of the present specification includes a second support member 150 having a hole 157 that overlaps with the magnetic field region of the vibration generating device 300, and a plate 700 disposed between the second support member 150 and the vibration generating device 300, thereby preventing or minimizing the magnetic field distortion phenomenon of the vibration generating device 300 by the second support member 150, and improving the acoustic output characteristics of the vibration generating device 300. Thereby, the acoustic output characteristics due to the vibration of the vibration generating device 300 can be improved. Further, the display device according to other embodiments of the present specification further includes a communication hole 710 disposed in the plate 700 so as to overlap with the hole 157 of the second support member 150 and overlap with less than half of the magnetic field region formed in the vibration generating device 300, thereby maintaining the acoustic balance between the front acoustic traveling in the front direction of the display module 100 and the side acoustic traveling in the side direction of the display module 100 of the sound generated from the vibration generating device 300, so that the acoustic output characteristics of the vibration generating device 300 can be further improved. Thereby, the acoustic output characteristics due to the vibration of the vibration generating device 300 can be further improved.

[0274] FIG. 21 is a graph showing the acoustic output characteristics of the display device according to the embodiment of the present specification and the acoustic output characteristics of the display device according to the comparative example. In FIG. 21, the thick solid line indicates the frequency-sound pressure characteristics of the display device according to the embodiment shown in FIG. 5, and the dotted line indicates that the display device (or the display device of the comparative example) includes a vibration generator arranged in parallel with the back surface of the second support member while being adjacent to one side or side surface of the second support member via a connecting member without a structure according to the present specification and less than 3 mm. In FIG. 21, the horizontal axis represents frequency (Frequency, Hz), and the vertical axis represents sound pressure (Sound Pressure Level, dB). The sound pressure level in FIG. 21 was measured using an APX525 Audio Analyzer (FFT Analyzer) from Audio Precision, with an applied voltage of 3 Vrms, a sine sweep applied from 20 Hz to 20 kHz, and the sound pressure level measured at a location 0.5 m away from the display panel. The sine sweep can be a method of sweeping in a short time and is not limited to this method.

[0275] Referring to FIG. 21, it can be seen that the display device according to the embodiment of the present specification has an improved sound pressure at 3 kHz or higher in the high-frequency band compared to the display device of the comparative example. For example, it can be seen that the display device according to the embodiment of the present specification has an improved sound pressure of about 10 dB or more in the sound frequency band of 3 kHz to 10 kHz compared to the display device of the comparative example. Also, it can be seen that the display device according to the embodiment of the present specification has an improved sound pressure below 1 kHz compared to the display device of the comparative example. Therefore, it can be seen that the display device of FIG. 5 has improved sound pressure characteristics and acoustic characteristics in the high-frequency band compared to the display device of the comparative example.

[0276] Then, based on a sound pressure of about 70 dB or more, since the display device according to the embodiments of this specification has a frequency band of 150 Hz to 20 kHz, it can be seen that the frequency band is extended by about 30 Hz compared to the display device of the comparative example having a frequency band of 180 Hz to 20 kHz. Therefore, it can be seen that the sound pressure characteristics and acoustic characteristics in the low-frequency band of the display device in FIG. 5 are improved compared to the display device of the comparative example.

[0277] Therefore, it can be seen that the acoustics in the high-frequency band of the display device according to the embodiments of this specification are improved. For example, this specification can provide a device or a display device including a vibration generating device that can output acoustics in the high-frequency band without configuring a piezoelectric vibration device with a strong output in the high-frequency band. Therefore, in this specification, a device or a display device including a vibration generating device that can improve the acoustics in the low-frequency band to the high-frequency band can be provided.

[0278] The vibration device according to the embodiments of this specification can be applied to a vibration device disposed in a display device. The display device according to the embodiments of this specification can be applied to mobile devices, video phones, smart watches, watch phones, wearable apparatuses, foldable apparatuses, rollable apparatuses, bendable apparatuses, flexible devices, curved apparatuses, electronic notebooks, electronic books, PMPs (portable multimedia players), PDAs (personal digital assistants), MP3 players, mobile medical devices, desktop PCs, laptop PCs, netbook computers, workstations, navigations, vehicle navigations, vehicle display devices, theater devices, theater display devices, TVs, wallpaper devices, signage devices, game devices, notebook computers, monitors, cameras, video cameras, and home appliances, etc. In addition, the vibration generating device of this specification can be applied to an organic light-emitting lighting device or an inorganic light-emitting lighting device. When the vibration generating device of this specification is applied to a lighting device, the vibration generating device can serve as lighting and a speaker. Further, when the vibration generating device of this specification is applied to a mobile device or the like, the vibration generating device can serve as one or more of a speaker, a receiver, and a haptic, but is not limited thereto.

[0279] The display device according to the embodiments of this specification can be described as follows.

[0280] The display device according to some embodiments of the present specification may include a display module including a display panel configured to display an image, a structure disposed on the back side of the display module, and a vibration generator disposed on the structure so as not to be parallel to the back of the display module.

[0281] According to some embodiments of the present specification, the structure may include a support portion configured to support the vibration generator, an acoustic guide portion extending from the support portion to one side of the display module, and an acoustic emission portion protruding from one side of the acoustic guide portion. For example, the acoustic guide portion may extend from the support portion to the side surface of the display module along the first direction. For example, the acoustic emission portion may protrude from the tip of the acoustic guide portion along the thickness direction of the display module.

[0282] According to some embodiments of the present specification, the support portion may include an opening overlapping the vibration generator.

[0283] The display device according to some embodiments of the present specification may include a display module including a display panel configured to display an image, a first vibration generation module disposed in a first back region of the display module, and a second vibration generation module disposed in a second back region of the display module. Each of the first and second vibration generation modules may include a vibration generator configured to output sound toward the back of the display module, and a structure disposed on the back side of the display module and configured to output the sound output from the vibration generator to one side of the display module. For example, the structure may support the vibration generator. For example, the structure may output the sound output from the vibration generator in the side direction of the display module.

[0284] According to some embodiments of this specification, the vibration generator can be arranged non-parallel to the back surface of the display module. For example, the structure can be arranged on the back side of the display module via a connecting member.

[0285] According to some embodiments of this specification, the sound generated by the sound pressure output from the vibration generator can be output in the front direction and the side direction of the display module.

[0286] According to some embodiments of this specification, the structure can include a support portion configured to support the vibration generator, an acoustic guide portion extending from the support portion toward the side surface of the display module, and an acoustic emission portion protruding from one side of the acoustic guide portion. For example, the acoustic guide portion can extend from the support portion to the side surface of the display module along the first direction. For example, the acoustic emission portion can protrude from the tip of the acoustic guide portion along the thickness direction of the display module.

[0287] According to some embodiments of this specification, the distance between the back surface of the display module and the vibration generator can increase as it goes to one side of the display module along the first direction. For example, the distance between the back surface of the display module and the vibration generator can increase as it goes to the side surface of the display module along the first direction.

[0288] According to some embodiments of this specification, based on the first direction, the length of the acoustic guide portion can be 3 mm or more and 1.2 times or less the overall length of the vibration generator.

[0289] According to some embodiments of this specification, the thickness of the acoustic guide portion can gradually increase as it goes from the acoustic emission portion to the support portion along the first direction.

[0290] According to some embodiments of this specification, the acoustic emission portion can include a protruding portion. For example, the acoustic emission portion can include a triangular protruding chip or a triangular protruding portion.

[0291] According to some embodiments of the present specification, the sound emitting portion may further include a concave portion.

[0292] According to some embodiments of the present specification, the sound emitting portion protrudes from one side of the sound guiding portion along the thickness direction of the display module, and includes a first surface exposed outside one side of the display module, and a second surface inclined from one side of the first surface adjacent to the display module.

[0293] According to some embodiments of the present specification, the support portion includes a first support portion arranged along a first direction and configured to support a first side of the vibration generator, a second support portion parallel to the first support portion and configured to support a second side of the vibration generator, a third support portion arranged between one side of the first support portion and one side of the second support portion and configured to support a third side of the vibration generator, and an opening surrounded by the first support portion, the second support portion, and the third support portion. For example, the third support portion can be arranged along a second direction intersecting the first direction. For example, the opening can overlap with the vibration generator.

[0294] According to some embodiments of the present specification, the support portion can further include a first stopper arranged on the third support portion and defining an arrangement region of the vibration generator.

[0295] According to some embodiments of the present specification, each of the first support portion and the second support portion can include a first surface adjacent to the back surface of the display module and a second surface non-parallel to the back surface of the display module. For example, the second surface can support the vibration generator.

[0296] According to some embodiments of the present specification, in each of the first support portion and the second support portion, the distance between the first surface and the second surface can gradually increase from the third support portion towards the sound guiding portion along the first direction.

[0297] According to some embodiments of this specification, the angle between the first surface and the second surface can be 5 degrees or less.

[0298] According to some embodiments of this specification, the acoustic guide part can include a first extension part extending from the first support part to one side of the display module along the first direction, a second extension part extending from the second support part to one side of the display module, and a cover part covering the space between the first extension part and the second extension part. For example, the second extension part can be parallel to the first extension part.

[0299] According to some embodiments of this specification, the cover part can include a second stopper arranged on the first and second extension parts to define the arrangement area of the vibration generator, a first surface which is an outer inclined surface or an inclined surface, and a second surface which is a ceiling surface.

[0300] According to some embodiments of this specification, the cover part can include a surface (or an outer inclined surface) non-parallel to the back surface of the display module. For example, the angle between the surface of the cover part and the back surface of the display module can be 45 degrees or less.

[0301] According to some embodiments of this specification, the structure can further include pads respectively arranged on the third surfaces (or inner surfaces) of the first and second support parts and the third surfaces (or inner surfaces) of the first and second extension parts.

[0302] According to some embodiments of this specification, the sound emitting part can include a sound emitting guide protruding from one side of the acoustic guide part, and a sound emitting port arranged between the sound emitting guide and the display module. For example, the sound emitting guide can protrude from the tip of the acoustic guide part along the thickness direction of the display module. For example, the sound emitting port can be arranged along the second direction.

[0303] According to some embodiments of this specification, an acoustic emission guide projects from one side of an acoustic guide portion along the thickness direction of a display module, and includes a first surface (or outer surface) exposed on one side of the display module and a second surface (or inner surface) inclined from the first surface adjacent to the display module. For example, the first surface can project from the tip of the acoustic guide portion along the thickness direction of the display module. For example, the first surface can be exposed outside the side surface of the display module. For example, the second surface can be inclined from the tip of the first surface.

[0304] According to some embodiments of this specification, in the acoustic emission guide, the angle between the first surface and the second surface can be between 45 degrees and 75 degrees.

[0305] According to some embodiments of this specification, based on the first direction, the distance between the first surface of the acoustic emission guide and one side of the display module is 1±0.5 mm or less, or based on the thickness direction of the display module, the shortest distance between the first surface of the acoustic emission guide and the display module can be ±0.5 mm.

[0306] According to some embodiments of this specification, the display module is disposed on the back side of the display panel and further includes a second support member configured to support a structure, and the second support member can include a first hole. For example, the first hole of the second support member can overlap with the vibration generator.

[0307] According to some embodiments of this specification, the second support member can include a non-ferrous metal.

[0308] According to some embodiments of this specification, a connecting member including an opening can be further included and disposed between the first portion of the second support member and the structure.

[0309] The display device according to some embodiments of the present specification may further include a plate disposed between the second support member and the structure and configured to cover the first hole of the second support member. For example, the plate can support the structure.

[0310] According to some embodiments of the present specification, the plate can be made of a material different from that of the second support member.

[0311] According to some embodiments of the present specification, the plate can be formed from a non-ferrous metal.

[0312] According to some embodiments of the present specification, the plate can further include a second hole that overlaps with the first hole of the second support member.

[0313] According to some embodiments of the present specification, the second hole can have a shape different from that of the first hole or a size smaller than that of the first hole.

[0314] According to some embodiments of the present specification, the vibration generator can include a bobbin disposed on a module frame disposed on the structure, a magnet provided inside or outside the bobbin, a coil wound around the bobbin, and a damper between the module frame and the bobbin.

[0315] According to some embodiments of the present specification, the display module may further include a second support member disposed on the back side of the display panel, and the second support member can include a hole having a size larger than the size of the bobbin. For example, the vibration generator can overlap with the hole of the second support member.

[0316] The display device according to some embodiments of the present specification further includes a plate disposed between the back surface of the display module and the structure, and the display module further includes a second support member disposed on the back side of the display panel, and the second support member can include holes. For example, the holes of the second support member can overlap with the vibrator.

[0317] According to some embodiments of the present specification, the plate can include second holes that overlap with a part of the bobbin. For example, the second holes of the plate can overlap with the holes of the second support member.

[0318] According to some embodiments of the present specification, it can further include a first support member including a first part configured to cover the back surface of the display module, a second part configured to surround the side surface of the display module, and a third part inclined or configured to incline from the first part to the second part so as to overlap with the ends of the first and second vibration generating modules.

[0319] According to some embodiments of the present specification, based on the length of the cross-section along the first direction, the length of the cross-section of the second hole can be 40% or less of the length of the cross-section of the bobbin.

[0320] In the present specification described above, it is not limited to the foregoing embodiments and the attached drawings, and it will be apparent to those of ordinary skill in the art to which the present specification belongs that a plurality of substitutions, modifications, and changes are possible without departing from the technical idea of the present specification. Therefore, the scope of the present specification is indicated by the claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present specification.

Description of Reference Numerals

[0321] 100: Display module 110: Display panel 120: Backlight module 130: Panel guide 140: First connecting member 150: Second support member 151: First part 153: Second part 157: Hole 300: Vibration generator 300-1: First vibration generation module 300-2: Second vibration generation module 310, 1310: Structure 311: Support part 313, 1313: Acoustic guide part 315: Acoustic emission part 330: Vibration generator 332: Bobbin 333: Magnet member 400: Second connecting member 500: First support member 510: First part 530: Second part 600: Third connecting member 700: Plate 710: Communication hole

Claims

1. A display module including a display panel configured to display an image, a vibration generator having a sound wave output toward the back surface of the display module, and a vibration generating device disposed in a back region of the display module, a back cover configured to surround one or more side surfaces of the display module and cover the vibration generating device, a frame gap between the back cover and the one or more side surfaces of the display module, and a connecting member disposed between the back surface of the display module and the vibration generating device and including an opening region, wherein the vibration generator is non-parallel to the back surface of the display module or inclined from the back surface of the display module, the display module vibrates by the sound wave output from the vibration generator and outputs sound forward, and at least a part of the sound output from the vibration generator is output forward of the display module through the opening region of the connecting member and the frame gap. A display device.

2. The back cover includes a first part configured to cover the back surface of the display module and the vibration generating device, a second part configured to surround the one or more side surfaces of the display module, and a third part between the first part and the second part and overlapping an edge part of the vibration generating device, wherein the frame gap is between the second part and the one or more side surfaces of the display module. The display device according to claim 1.

3. The third part is configured to be inclined in a direction from the first part to the second part. The display device according to claim 2.

4. The vibration generating device includes a sound emitting part communicated with the frame gap, and at least a part of the sound output from the vibration generating device is output forward of the display module through the opening region of the connecting member, the sound emitting part, and the frame gap. The display device according to claim 1.

5. The vibration generating device includes a structure disposed on the back surface side of the display module by the connecting member, and the vibration generator is disposed on the structure, The display device according to claim 1, wherein the structure is configured to output the sound output from the vibration generator to the frame gap.

6. The vibration generating device is including a structure disposed on the back side of the display module by the connecting member, wherein the structure is a support portion including a first surface and a second surface opposite to the first surface, an acoustic guide portion extending from the support portion in the direction of the side surface of the display module, and an acoustic emission portion protruding from a part of the acoustic guide portion in the direction of the frame gap, the display device according to claim 1.

7. The thickness between the first surface and the second surface of the structure gradually increases or increases toward one side surface of the display module along a first direction which is the side surface direction of the display panel, the display device according to claim 6.

8. The distance between the back surface of the display module and the vibration generator gradually increases toward one side surface of the display module along a first direction which is the side surface direction of the display panel, the display device according to claim 6.

9. Based on a first direction which is the side surface direction of the display panel, the length of the acoustic guide portion is 3 mm or more and 1.2 times or less the overall length of the vibration generator, the display device according to claim 6.

10. The thickness of the acoustic guide portion gradually increases from the acoustic emission portion toward the support portion along a first direction which is the side surface direction of the display panel, the display device according to claim 6.

11. The acoustic emission portion includes a protruding portion protruding from the acoustic guide portion in the direction of the frame gap along the direction of the display panel, the display device according to claim 6.

12. The acoustic emission portion further includes a concave portion recessed in a direction opposite to the direction of the display panel from the acoustic guide portion, the display device according to claim 11.

13. The support portion is a first support portion disposed along a first direction which is the side surface direction of the display panel so as to include the second surface and configured to support a first side of the vibration generator, a second support portion parallel to the first support portion and disposed along the first direction which is the side surface direction of the display panel so as to include the second surface and configured to support a second side of the vibration generator, A third support portion that is between one side of the first support portion and one side of the second support portion and is configured to support a third side of the vibration generator, and The display device according to claim 6, comprising an opening surrounded by the first support portion, the second support portion, and the third support portion.

14. The display device according to claim 13, wherein the support portion further includes a first stopper disposed on the third support portion and configured to define an arrangement region of the vibration generator.

15. In each of the first support portion and the second support portion, a distance between the first surface and the second surface gradually increases from the third support portion toward the acoustic guide portion along the first direction. The display device according to claim 13.

16. The acoustic guide portion is A first extension portion extending from the first support portion in the first direction toward one side surface of the display module, A second extension portion extending from the second support portion to one side surface of the display module, The display device according to claim 13, comprising a cover portion covering a space between the first extension portion and the second extension portion.

17. The cover portion is A second stopper disposed on the first and second extension portions and configured to define an arrangement region of the vibration generator, A first surface that is an outer inclined surface or an inclined surface, A second surface that is a ceiling surface. The display device according to claim 16.

18. The display device according to claim 16, wherein the cover portion includes a surface non-parallel to the back surface of the display module.

19. The display device according to claim 16, wherein the structure further includes pads respectively disposed on third surfaces of the first and second support portions and third surfaces of the first and second extension portions.

20. The acoustic emission portion is An acoustic emission guide protruding from one side of the acoustic guide portion, and The display device according to claim 6, including an acoustic emission port between the acoustic emission guide and the display module.

21. The acoustic emission guide is A first protruding surface protruding from one side of the acoustic guide portion along the thickness direction of the display module and exposed on one side of the display module, and The display device according to claim 20, comprising a second protruding surface inclined from the first protruding surface adjacent to the display module.

22. The display device according to claim 21, wherein, in the acoustic emission guide, the angle between the first protruding surface and the second protruding surface is within a range of 45 degrees to 75 degrees.

23. Based on the first direction which is the side direction of the display panel, the distance between the first protruding surface of the acoustic emission guide and one side surface of the display module is 1 ± 0.5 mm or less, or The display device according to claim 21, wherein the shortest distance between the first protruding surface of the acoustic emission guide and the display module is ± 0.5 mm based on the thickness direction of the display module.

24. The display module is on the back side of the display panel and further includes a support cover configured to support the structure. The display device according to any one of claims 5 to 23, wherein the support cover further includes a first hole overlapping with the vibration generator.

25. The display device according to claim 24, wherein the support cover includes a metal material, a metal alloy material, or a non-ferrous metal material.

26. The display device according to claim 24, wherein the opening region of the connecting member is disposed between a first portion of the support cover and the structure.

27. The display device according to claim 24, further including a plate disposed between the support cover and the structure and configured to cover the first hole of the support cover.

28. The display device according to claim 27, wherein the plate is formed of one or more of aluminum (Al), magnesium (Mg), magnesium (Mg) alloy, magnesium lithium (Mg-Li) alloy, and aluminum (Al) alloy, or a non-ferrous metal.

29. The display device according to claim 27, wherein the plate further includes a second hole overlapping with the first hole of the support cover.

30. The display device according to claim 29, wherein the shape of the second hole is different from that of the first hole, or The size of the second hole is smaller than that of the first hole.

31. The vibration generator is a module frame disposed on the structure, A bobbin disposed on the module frame, a magnet provided inside or outside the bobbin, a coil wound around the bobbin, and a damper between the module frame and the bobbin, the display device according to any one of claims 5 to 23.

32. The display module further includes a support cover disposed on the back side of the display panel, the support cover includes holes, the size of the holes is larger than the size of the bobbin, the display device according to claim 31.

33. The display module further includes a plate disposed between the back surface of the display module and the structure, the display module further includes a support cover disposed on the back side of the display panel, the support cover includes holes, the display device according to claim 31.

34. The plate further includes a second hole overlapping a part of the bobbin, the display device according to claim 33.

35. Based on the length of the cross-section along the first direction which is the side direction of the display panel, the length of the cross-section of the second hole is 40% or less of the length of the cross-section of the bobbin, the display device according to claim 34.

36. The vibration generating device is a first vibration generating module disposed in a first back region of the display module and including the structure and the vibration generator, and a second vibration generating module disposed in a second back region of the display module and including the structure and the vibration generator, the display device according to any one of claims 5 to 23.

37. The first and second vibration generating modules are arranged to be symmetric or asymmetric with respect to the first direction which is the side direction of the display panel, the display device according to claim 36.

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