Display device

Abstract

To realize high-pitched sound without configuring a piezoelectric vibration device in a display device.SOLUTION: A display device disclosed herein comprises a display module including a display panel configured to display an image, a structure provided on a back surface of the display module, and a vibration generator provided on the structure. The structure may include a nonlinear portion covering a periphery of the back surface of the display module and a sound emission port spaced apart from the back surface of the display module.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present specification relates to a display device, and more particularly to a display device having a display panel that outputs sound. [Background technology]

[0002] Display devices are used as screens for displaying images in electronic products and home appliances such as televisions, monitors, laptops, smartphones, tablet computers, electronic pads, wearable devices, watch phones, mobile information devices, navigation systems, or vehicle control display devices.

[0003] The display device may include a display panel for displaying images and an audio device for outputting audio associated with the images.

[0004] However, in a display device, the sound output from the sound device travels behind or below the display panel, and the sound quality deteriorates due to interference between the sound reflected from the walls and floor, which makes it difficult to transmit the sound accurately and reduces the viewer's sense of immersion. Summary of the Invention [Problem to be solved by the invention]

[0005] The inventors of the present specification recognized the problems with the display device described above and conducted several experiments to improve sound quality or sound pressure by directing the sound to the front of the display panel when viewing an image from the front of the display panel. Through the multiple experiments, they invented a display device with a new structure that can generate sound that travels forward from the display panel and improve sound quality.

[0006] The technical objective of the embodiments of the present specification is to provide a display device that can improve sound quality and enhance the sense of immersion of the viewer.

[0007] An object of the embodiments of the present specification is to provide a display device that can generate sound in the front and side directions of the 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 skilled in the art from the following description and explanations. [Means for solving the problem]

[0009] A 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 arranged on the rear surface of the display module, and a vibration generator arranged on the structure, wherein the structure has a nonlinear portion covering the rear end of the display module and may include an acoustic emission port spaced apart from the rear surface of the display module.

[0010] A display device according to some embodiments of the present specification includes a display module including a display panel configured to display images, a first vibration generating module arranged in a first rear region of the display module, and a second vibration generating module arranged in a second rear region of the display module, each of the first and second vibration generating modules including a vibration generator that outputs sound to the rear of the display module and a structure that supports the vibration generator, the structure having a nonlinear portion that guides the sound output from the vibration generator to one side of the display module and including an acoustic outlet spaced apart from the rear of the display module.

[0011] Specific details relating to various aspects of the present specification other than the means for solving the problems mentioned above are included in the following description and drawings. [Effects of the Invention]

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

[0013] A display device according to some embodiments of the present specification can improve the sound in the low to high frequency ranges.

[0014] A display device according to some embodiments of the present disclosure can reduce the thickness of the edges of the display device.

[0015] The above-mentioned problems to be solved, means for solving the problems, and effects do not specify essential features of the claims, and the scope of the claims is not limited by the matters described in the contents of the invention. [Brief explanation of the drawings]

[0016] [Figure 1] 1 illustrates a display device according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a cross-sectional view taken along line II' shown in FIG. [Figure 3] 1 is an exploded view of a display device according to an embodiment of the present disclosure. [Figure 4] 4 is a diagram showing a vibration generator disposed on the second support member shown in FIG. 3. FIG. [Figure 5] FIG. 4 is a cross-sectional view taken along line BB' shown in FIG. [Figure 6] 1A and 1B are diagrams illustrating the structure of a vibration generating module according to an embodiment of the present specification. [Figure 7] FIG. 7 is a cross-sectional view taken along line CC' shown in FIG. [Figure 8] FIG. 10 illustrates a display device according to another embodiment of the present specification. [Figure 9] FIG. 9 is a cross-sectional view taken along line DD' shown in FIG. [Figure 10] FIG. 10 illustrates a display device according to another embodiment of the present specification. [Figure 11] FIG. 11 is a cross-sectional view taken along line EE' shown in FIG. [Figure 12] FIG. 10 is a diagram showing the rear surface of a display device according to another embodiment of the present specification. [Figure 13] FIG. 13 is a cross-sectional view taken along line FF' shown in FIG. [Figure 14] FIG. 14 is a diagram showing the structure shown in FIGS. 12 and 13. [Figure 15] FIG. 15 is a cross-sectional view taken along line GG' shown in FIG. [Figure 16] 13 is another cross-sectional view taken along the line FF' shown in FIG. 12. FIG. [Figure 17] 13 is another cross-sectional view taken along the line FF' shown in FIG. 12. FIG. [Figure 18] 1 is a graph showing the acoustic output characteristics of a display device according to an example of the present specification and the acoustic output characteristics of display devices according to first and second comparative examples. DETAILED DESCRIPTION OF THE INVENTION

[0017] The advantages and features of the present invention, and methods for achieving them, will become clearer with reference to the following examples, which are described in detail with reference to the accompanying drawings. However, the present invention is not limited to the examples disclosed below, and may be realized in various different forms. The examples are provided solely to complete the disclosure of the present invention and to fully convey the scope of the invention to those skilled in the art to which the present invention pertains. The present invention is defined solely by the scope of the claims.

[0018] The shapes, sizes, ratios, angles, numbers, etc. shown in the drawings are for illustrative purposes only and are not intended to limit the scope of the present specification. The same reference numerals refer to the same components throughout the specification. Furthermore, in describing the present specification, if a detailed description of related prior art is deemed to unnecessarily obscure the gist of the present invention, that detailed description will be omitted.

[0019] When the terms "comprise," "have," "consist of," etc. are used as mentioned in this specification, other parts can be added unless "only" is used. When an element is expressed in the singular, it also includes plural unless otherwise expressly stated.

[0020] When interpreting elements, they are interpreted as including a margin of error even if there is no other explicit description.

[0021] When describing a positional relationship, for example when the positional relationship of two parts is described using "above," "on top," "below," or "beside," one or more other parts may be located between the two parts, unless "immediately" or "directly" is used.

[0022] When describing a temporal relationship, for example, when the temporal sequence is described using "after," "following," "next," or "before," it can also include cases where the sequence is not consecutive, as long as "immediately" or "directly" is not used.

[0023] Although terms such as "first" and "second" are used to describe various components, these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, a first component referred to below may also be a second component within the technical concept of the present invention.

[0024] The term "at least one" should be understood to include all possible combinations of one or more associated items. For example, "at least one of the first, second, and third items" may mean not only the first, second, or third item individually, but also all possible combinations of the first, second, and third items that can be present in two or more of the first, second, and third items.

[0025] The features of the various embodiments of this specification may be partially or fully combined or combined with each other, and various technical interlocking and driving mechanisms may be possible, and each embodiment may be implemented independently of the other, or may be implemented together in a related relationship.

[0026] Hereinafter, examples of display devices according to embodiments of the present specification will be described in detail with reference to the accompanying drawings. When assigning reference numerals to components in each drawing, identical components may be assigned the same numerals as much as possible even if they are displayed in different drawings. Furthermore, the scales of the components shown in the accompanying drawings may be different from the actual scales for convenience of explanation, but are not limited to the scales shown in the drawings.

[0027] A display device according to an embodiment of the present specification may include a vibration generating module. When the vibration generating module is configured as an acoustic generating device, it is difficult to ensure high-frequency sound due to the complex structure of the display device. To solve this problem, a piezoelectric vibration device made of a piezoelectric element or piezoelectric material having a piezoelectric effect (or inverse piezoelectric characteristics) that produces a strong high-frequency output may be further included. When a piezoelectric vibration device is configured in a display device for acoustic output, the cost of the display device increases, and a separate configuration is required to generate an acoustic signal from the piezoelectric vibration device, which increases the cost. Therefore, the inventors of the present specification conducted several experiments to realize high-frequency sound without configuring a piezoelectric vibration device in the display device. Through these experiments, they invented a display device with a new structure, which will be described below.

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

[0029] 1 and 2, a display device according to an embodiment of the present specification may output sound (S1) by vibrating a display module 100 for displaying an image. For example, the image may include an electronic image or a digital image. For example, in the display device, the display module 100 may be vibrated by a vibration generator (or a sound generator) to generate sound (S1). The sound (S1) generated by the vibration of the display module 100 may be output to the front face (FD) of the display device. Therefore, the display device according to an embodiment of the present specification may use the display module 100 as a diaphragm for generating or outputting sound and output sound (S1) to the front face (FD) of the display module 100, thereby enabling more accurate sound transmission, improving sound quality, and enhancing a viewer's immersive experience.

[0030] A display device according to an embodiment of the present specification may include a display module 100 and a vibration generating device 300 .

[0031] The display module 100 may be configured to display an image. The display module 100 may be configured to display an image and output a sound in response to the vibration of the vibration generator 300. The display module 100 may be configured to output a sound in response to the vibration of the vibration generator 300 when not displaying an image.

[0032] The display module 100 may be, but is not limited to, a liquid crystal display module. For example, the display module 100 may be an emissive display module, an electrophoretic display module, a micro-light-emitting diode display module, an electrowetting display module, or a quantum dot emissive display module.

[0033] The display module 100 according to the embodiments of the present disclosure may include a display panel configured to display an image. The display panel may be, but is not limited to, a liquid crystal display panel. For example, the display panel may be an emissive display panel, an electrophoretic display panel, a micro light-emitting diode display panel, an electrowetting display panel, or a quantum dot emissive display panel.

[0034] The rear surface (or back surface) of the display module 100 according to the embodiments of the present specification may include a middle area (MA) and an edge area (or end area) (EA). For example, the rear surface area of ​​the display module 100 may be divided into a middle area (MA) (or rear middle area) and an edge area (EA) (or rear frame area).

[0035] The vibration generator 300 may be configured on the rear surface (or rear surface region) of the display module 100. For example, the vibration generator 300 may be disposed along the edge area (EA) of the rear surface of the display module 100. The vibration generator 300 may output sound to the rear surface region of the display module 100 or output sound pressure to the rear surface region of the display module 100. The vibration generator 300 according to the embodiments of the present specification may vibrate in response to an externally input sound signal (or voice signal) to generate sound and output the sound in the front and side directions of the display module 100. For example, the vibration generator 300 may vibrate the edge area (EA) of the display module 100 in response to the sound signal to generate sound pressure, and may vibrate the edge area (EA) of the display module 100 via this sound pressure to generate sound (S1). In addition, the sound generated by the vibration of the vibration generator 300 may be reflected (or diffracted) along the side direction of the display module 100 and then output toward the front surface of the display module 100. For example, the sound generated by the sound pressure output from the vibration generator 300 can be output in the front and side directions of the display module 100 .

[0036] According to an embodiment of the present specification, the vibration generator 300 may include a nonlinear section (NLP) and an acoustic outlet 2316. The nonlinear section (NLP) may guide the sound generated by the acoustic signal toward one side or a lateral direction of the display module 100. The acoustic outlet 2316 may be spaced apart from the rear surface of the display module 100. The sound output from the vibration generator 300 to the rear surface of the display module 100 may be guided toward one side or a lateral direction of the display module 100 by the rear surface of the display module 100 and the nonlinear section (NLP), and may be output toward the lateral direction and the front direction of the display module 100 through the acoustic outlet 2316.

[0037] The vibration generating device 300 according to the embodiment of the present specification may include at least one vibration generating module 300-1, 300-2 arranged along the edge area (EA) of the rear 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 arranged along the edge area (EA) of the display module 100.

[0038] The first and second vibration generating modules 300-1 and 300-2 may be arranged symmetrically or asymmetrically around the center of the display module 100 based on the first direction (X) (or horizontal direction) of the display module 100. For example, the first vibration generating module 300-1 may be arranged in a first rear edge region (EA1) among the rear edge regions (EA) of the display module 100, and the second vibration generating module 300-2 may be arranged in a second rear edge region (EA2) parallel to the first rear edge region (EA1) among the rear edge regions (EA) of the display module 100. For example, when viewed from the front of the display module 100, the first rear edge region (EA1) may be the left edge region (or right edge region) of the display module 100, and the second rear edge region (EA2) may be the right edge region (or left edge region) of the display module 100, but are not necessarily limited thereto.

[0039] Each of the first and second vibration generating modules 300-1 and 300-2 may be configured to include a structure having a nonlinear portion (NLP) covering the rear edge of the display module 100 and an acoustic outlet 2316 spaced apart from the rear surface of the display module 100. Each of the first and second vibration generating modules 300-1 and 300-2 vibrates in response to an acoustic signal to output sound to the rear surface of the display module 100, and then output sound in the side and front directions of the display module 100 through the nonlinear portion (NLP) and the acoustic outlet 2316 of the structure. For example, the sound generated in each of the first and second vibration generating modules 300-1, 300-2 can be reflected (or diffracted) toward the side of the display module 100 between the back of the display module 100 of each of the first and second vibration generating modules 300-1, 300-2, and between the back of the display module 100 and the nonlinear section (NLP), and can be output toward the side and front of the display module 100 through the sound emission port 2316.

[0040] The display device according to the embodiment of the present specification may further include a first support member 500 disposed on the rear surface of the display module 100 .

[0041] The first support member 500 may be made of, but is not limited to, any one of a plastic material, a metal material, or a glass material. For example, the first support member 500 may be expressed as, but is not limited to, a rear cover, a system rear cover, a system housing, a set cover, a rear set cover, an outermost set cover, a product cover, or an outermost product cover.

[0042] The first support member 500 may be configured to house the display module 100 in which the vibration generator 300 is disposed, or to cover the rear surface of the display module 100 in which the vibration generator 300 is disposed. The first support member 500 may also be configured to surround at least one side surface of the display module 100. For example, the first support member 500 may include an acoustic guide structure that guides sound or sound pressure generated by vibration of the vibration generator 300 toward the front (FD) or side surface of the display module 100.

[0043] The first support member 500 according to the embodiment of the present specification may include a first portion 510 and a second portion 530. The first portion 510 may be a rear cover portion, and the second portion 530 may be a side cover portion.

[0044] The first portion 510 may cover a portion of the rear surface (or rear surface area) of the display module 100. The first portion 510 may be configured to cover the entire rear surface (or rear surface area) of the display module 100. For example, the first portion 510 may be spaced apart from the rear surface of the display module 100 by a predetermined interval (or distance). An air gap (AG) may be disposed between the first portion 510 and the rear surface of the display module 100. The air gap (AG) may be a first gap or a first space.

[0045] The second portion 530 may be connected to the first portion 510. The second portion 530 may be configured to surround at least one side of the display module 100. The second portion 530 may be spaced apart from one side or side of the display module 100 by a predetermined distance so as not to be in direct contact with the one side or side of the display module 100. The second portion 530 may be an acoustic guide structure embodied to guide sound or sound pressure generated by vibration of the vibration generating device 300 toward the front direction (FD) of the display module 100. For example, the second portion 530 may be bent from the first portion 510 in the thickness direction (Z) of the display module 100. For example, the second portion 530 may be represented by, but is not limited to, an acoustic guide or an acoustic guide member.

[0046] The first support member 500 according to the embodiment of the present specification may further include a third portion 550 between the first portion 510 and the second portion 530. The third portion 550 may be an inclined portion or slope. The third portion 550 may be inclined or sloped from the first portion 510 overlapping the nonlinear portion (NLP) of the vibration generator 300 toward the second portion 530. For example, the angle between the first portion 510 and the third portion 550 may be, but is not limited to, 45 degrees or less. Therefore, by including the third portion 550 overlapping the nonlinear portion (NLP) of the vibration generator 300, the first support member 500 can reduce the thickness of the edge portion of the display device overlapping the vibration generator 300.

[0047] The display device according to the embodiments of the present specification may further include an edge gap (EG) formed between one side or lateral surface of the display module 100 and the first support member 500. The edge gap (EG) may be a border gap, a border space, a second gap, an acoustic space, or a second space, and is not limited to the terms.

[0048] An edge gap (EG) may be formed between one side or lateral surface of the display module 100 and the second portion 530 of the first support member 500. The edge gap (EG) may be in communication (or connected) with the sound output port 2316 formed in the vibration generator 300. The edge gap (EG) may be 1 to 3 mm, but is not limited thereto. For example, the edge gap (EG) may be the distance (or shortest distance) between the side surface of the display module 100 and the second portion 530 of the first support member 500, but is not limited thereto. When the edge gap (EG) exceeds 3 mm, the bezel width of the display device may increase. The edge gap (EG) may be an acoustic output space (or acoustic output portion) through which sound generated by vibration of the vibration generator 300 and output toward the side of the display module 100 is output toward the front of the display module 100 through the sound output port 2316 of the vibration generator 300. For example, the sound generated by the vibration of the vibration generating device 300 can be repeatedly reflected (or diffracted) between the rear surface of the display module 100 and the vibration generating device 300, and output to the edge gap (EG) through the acoustic emission port 2316 of the vibration generating device 300.

[0049] The sound output toward the edge gap (EG) may be output toward the front surface of the display module 100 through the edge gap (EG), or may be reflected (or diffracted) at least one time between one side or lateral surface of the display module 100 and the second portion 530 of the first support member 500 and then output toward the front surface of the display module 100. For example, the sound output through the edge gap (EG) may be expressed as edge sound, edge sound, reinforced sound, or the like, but is not limited to these.

[0050] Therefore, the display device according to the embodiment of the present specification can output sound (S1) generated by vibration of the display module 100 due to sound output from the vibration generator 300 disposed in the edge area (EA) on the rear surface of the display module 100. In the display device according to the embodiment of the present specification, at least a portion of the high-frequency sound output from the vibration generator 300 is reflected (or diffracted) toward the side of the display module 100 by the nonlinear section (NLP) of the vibration generator 300 and output toward the front direction (FD) of the display module 100 through the sound outlet 2316 of the vibration generator 300 and the edge gap (EG). Therefore, the display device according to the embodiment of the present specification can improve the acoustic characteristics of the high-frequency sound by outputting toward the front direction (FD) of the display module 100 through the edge gap (EG).

[0051] FIG. 3 is an exploded view of a display device according to an embodiment of the present specification, FIG. 4 is a view showing a vibration generating device arranged on the second support member shown in FIG. 3, and FIG. 5 is a cross-sectional view of line B-B' shown in FIG. 3.

[0052] 3 to 5, a display device according to an embodiment of the present specification may include a display module 100, a display panel 110, a panel guide 130, and a second support member 150.

[0053] The display panel 110 may be, but is not limited to, a liquid crystal display panel. For example, the display panel 110 may be an organic light-emitting display panel, an emissive display panel, an electrophoretic display panel, a micro-light-emitting diode display panel, an electrowetting display panel, or a quantum dot light-emitting display panel.

[0054] 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 .

[0055] The display panel 110 according to the embodiment of the present specification may include a first substrate 111 , a second substrate 113 , a second polarizing member 115 , and a first polarizing member 117 .

[0056] The first substrate 111 may be an upper substrate or a thin film transistor array substrate, and may include a pixel array (or display unit or display area) having a plurality of pixels formed in a pixel area 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 the gate line and / or the data line, a pixel electrode connected to the thin film transistor, and a common electrode formed adjacent to the pixel electrode and to which a common voltage is supplied.

[0057] The first substrate 111 may further include a pad section provided at the first end (or the first non-display section) and a gate driving circuit provided at the second end (or the second non-display section).

[0058] The pad portion may supply external signals 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 a gate driving circuit via a gate control signal line. As an example, a first end of the first substrate 111 including the pad portion may protrude from or pass through one side or lateral surface corresponding to the first end of the second substrate 113, and the pad portion may be exposed in a rear direction toward the second support member 150. For example, the size of the first substrate 111 may be larger than that of the second substrate 113, but is not limited thereto.

[0059] The gate driving circuit according to the embodiment of the present specification may 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 may be configured as a shift register including transistors formed by the same process as the thin film transistors provided in the pixel region. In other examples, the gate driving circuit may be implemented in the form of an integrated circuit and included in the panel driving circuit, rather than being built in the first substrate 111.

[0060] The second substrate 113 is a lower substrate or a color filter array substrate, and may include a pixel pattern that may include opening regions overlapping pixel regions formed on the first substrate 111, and a color filter layer formed in the opening regions. The second substrate 113 according to the embodiment of the present specification may have a size smaller than the first substrate 111, but is not limited thereto. For example, the second substrate 113 may overlap the remaining portion of the first substrate 111 excluding a first end. The second substrate 113 may be bonded or attached to the remaining portion of the first substrate 111 excluding a first end, with a liquid crystal layer sandwiched between them using a sealant.

[0061] The liquid crystal layer is interposed between the first substrate 111 and the second substrate 113, and may be made of liquid crystal in which the alignment direction of liquid crystal molecules changes depending on the electric field formed by the data voltage and common voltage applied to the pixel electrode for each pixel.

[0062] The second polarizing member 115 is a lower polarizing member attached to the lower surface of the second substrate 113 and can polarize the light incident from the backlight module 120 and traveling to the liquid crystal layer.

[0063] The first polarizing member 117 is an upper polarizing member that is attached to the upper surface of the first substrate 111 and can polarize light that passes through the first substrate 111 and is emitted to the outside.

[0064] The display panel 110 according to the embodiment of the present specification can display an image by light passing 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.

[0065] In the display panel 110 according to the embodiment of the present specification, the first substrate 111, which is a thin film transistor array substrate, forms the image display surface, so that the entire front surface can be exposed to the outside without being blocked by any separate mechanism.

[0066] In the display panel 110 according to another embodiment of the present specification, the first substrate 111 may be a color filter array substrate, and the second substrate 113 may be a thin film transistor array substrate. For example, the display panel 110 according to the other embodiment may have a shape obtained by inverting the display panel 110 according to the one embodiment upside down. In this case, the pad portion of the display panel 110 according to the other embodiment may be blocked by a separate mechanism.

[0067] The display module 100 according to the embodiments of the present specification may further include a buffer member 119. The buffer member 119 may be formed to surround at least one side of the display panel 110. The buffer member 119 may be formed to cover each side and each corner of the display panel 110. The buffer member 119 may protect the side of the display panel 110 from external impact and may also serve to prevent light leakage from the side of the display panel 110. The buffer member 119 according to an example may be made of a silicone-based or ultraviolet (UV) curable sealant (or resin). For example, the buffer member 119 may be made of a colored resin or a light-blocking resin to prevent light leakage from the side.

[0068] According to an embodiment of the present disclosure, a portion of the upper surface of the buffer member 119 may be covered by the first polarizing member 117. The bonding surface between the buffer member 119 and the first substrate 111 or the boundary between the buffer member 119 and the first substrate 111 may be concealed by an extension of the first polarizing member 117 and may not be exposed to the front of the display device where a viewer is positioned. If the buffer member 119 is not formed, the front surface of the display panel 110 is exposed to the front of the display device without being blocked by a separate mechanism, which may cause light leakage from the side of the display panel 110. Therefore, the buffer member 119 may be configured to prevent light leakage from the side of the display panel 110 and protect the side of the display panel 110 in a display device having a structure in which the front surface or the entire front surface of the display panel 110 is exposed to the front in order to eliminate or minimize the bezel width of the display device. Alternatively, the buffer member 119 may be omitted.

[0069] The backlight module 120 is disposed on the rear surface of the display panel 110 and can irradiate light onto the rear surface of the display panel 110. The backlight module 120 according to the embodiment of the present specification may include a light guide plate 121, a light source unit, a reflective sheet 123, and an optical sheet unit 125.

[0070] 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 may include a light incident surface provided on at least one side. The light guide plate 121 may include a light-transmitting plastic or glass material. The light guide plate 121 can transmit (or output) light incident from the light source through the light incident surface toward the display panel 110.

[0071] The light source unit may irradiate light onto a light incident surface provided on the light guide plate 121. The light source unit may be disposed 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 embodiments of the present specification may include a plurality of light emitting diode elements mounted on a light source printed circuit board to irradiate light onto the light incident surface of the light guide plate 121.

[0072] The reflective sheet 123 may be disposed on the second support member 150 so as to cover the rear surface of the light guide plate 121. The reflective sheet 123 may reduce or minimize light loss by reflecting light incident from the light guide plate 121 back toward the light guide plate 121.

[0073] The optical sheet unit 125 is disposed on the front surface of the light guide plate 121 to improve the brightness characteristics of light output from the light guide plate 121. The optical sheet unit 125 according to the embodiment of the present specification may include a diffusion sheet, a first prism sheet, and a second prism sheet. For example, the optical sheet unit 125 may be configured as a single layer including the diffusion sheet, the first prism sheet, and the second prism sheet. However, the optical sheet unit 125 may be configured as a laminated combination of one or more of a diffusion sheet, a prism sheet, a dual brightness enhancement film, and a lenticular sheet, or as a single composite sheet having light diffusion and light collection functions.

[0074] The panel guide (or panel support portion) 130 may be disposed in the edge area (EA) on the rear surface of the display panel 110. The panel guide 130 may support the edge area (EA) on the rear surface of the display panel 110. The panel guide 130 may be supported or housed in the second support member 150 so as to overlap the edge area (EA) on the rear surface of the display panel 110. The panel guide 130 may be disposed below the rear surface of the display panel 110 so as not to protrude outside of each side of the display panel 110.

[0075] The panel guide 130 according to the embodiment of the present specification may include a guide frame (or panel support frame) 131 and a guide side portion 133. For example, the panel guide 130 may have a cross-sectional structure in the shape of a square or a square depending on the combined structure of the guide frame 131 and the guide side portion 133, and is not limited to this shape.

[0076] The guide frame 131 may be connected to or coupled to an edge area (EA) on the rear surface of the display panel 110 and may be supported by the second support member 150. For example, the guide frame 131 may have a rectangular band (or a perimeter or a belt) shape having an opening that overlaps with the remaining middle area (MA) excluding the edge area (EA) on the rear surface of the display panel 110, and is not limited to any particular 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 of the display panel 110. For example, the opening of the guide frame 131 may have a size equal to or larger than the pixel array (or display unit) provided on the display panel 110.

[0077] The guide frame 131 may be in direct contact with the top surface of the backlight module 120 , for example, the top surface of the optical sheet unit 125 , or may be spaced apart from the top surface of the optical sheet unit 125 by a certain distance.

[0078] The guide side portion 133 may be connected to the guide frame 131 and may wrap around one side or a lateral surface of the second support member 150. For example, the guide side portion 133 may be bent from the guide frame 131 toward the lateral surface of the second support member 150 and may surround the lateral surface of the second support member 150 or may be surrounded by the lateral surface of the second support member 150. The guide side portion 133 may be surrounded by the first support member 500. For example, the guide side portion 133 may be surrounded by the second portion 530 of the first support member 500.

[0079] The panel guide 130 according to the embodiments of the present specification may be made of, but is not limited to, a plastic material, a metal material, or a mixture of a plastic material and a metal material. For example, the panel guide 130 may serve as a vibration transmission member that transmits the acoustic vibrations generated by the vibration generator 300 to the rear edge area (EA) of the display panel 110. Therefore, the panel guide 130 can transmit the acoustic vibrations generated by the vibration generator 300 to the display panel 110 without loss while maintaining the rigidity of the display panel 110. For example, the panel guide 130 may include, but is not limited to, a metal material in order to transmit the acoustic vibrations generated by the vibration generator 300 to the display panel 110 while maintaining the rigidity of the display panel 110.

[0080] The panel guide 130 according to the embodiment of the present specification may be disposed in the rear edge area (EA) of the display panel 110. For example, the panel guide 130 may be connected or coupled to the rear edge area (EA) of the display panel 110 via a first connecting member 140.

[0081] The first connecting member 140 may be disposed between the rear edge area (EA) of the display panel 110 and the guide frame 131 of the panel guide 130 to position or connect the display panel 110 to the panel guide 130. The first connecting member 140 according to the embodiment of the present specification may include, but is not limited to, an acrylic or urethane adhesive material. For example, the first connecting member 140 may include an acrylic adhesive material having relatively excellent adhesive strength and high hardness so that vibrations of the panel guide 130 can be efficiently transmitted to the display panel 110. In this case, the first connecting member 140 may include a double-sided foam adhesive pad having an acrylic adhesive layer or a hardened acrylic adhesive resin layer.

[0082] The front surface of the first connecting member 140 according to the embodiment of the present specification may be coupled to the second substrate 113 or the second polarizing member 115 of the display panel 110. The first connecting member 140 may be directly coupled to or connected to the rear edge area (EA) of the second substrate 113 to improve adhesion to the display panel 110. In this case, the first connecting member 140 is disposed in the rear edge area (EA) of the second substrate 113 and surrounds the side of the second polarizing member 115, thereby preventing side light leakage from the second polarizing member 115.

[0083] The first connecting member 140 may have a certain thickness (or height). This allows a sound transmission space (STS) to be formed between the display panel 110 and the backlight module 120. The first connecting member 140 according to the embodiments of the present specification may be formed in a four-sided sealed or closed loop shape 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 topmost surface of the backlight module 120, which face each other across the opening of the panel guide 130, thereby preventing or minimizing leakage (or loss) of sound pressure transmitted to the sound transmission space (STS). The sound transmission space (STS) may be a sound pressure generation space where sound pressure is generated by vibration of the backlight module 120, or a panel vibration space that smooths vibration of the display panel 110 due to sound pressure.

[0084] The second support member 150 may be disposed on the rear surface of the display module 100. The second support member 150 may be configured to be disposed on the rearmost surface of the display module 100. The second support member 150 may support the panel guide 130 and the backlight module 120. The second support member 150 may also support the vibration generator 300. For example, the second support member 150 may be, but is not limited to, a support cover, a support member, a bottom cover, a cover bottom, or an inner cover.

[0085] The second support member 150 according to the embodiment of the present specification may function as a vibration plate. For example, the second support member 150 may include, but is not limited to, a metal material, a metal alloy material, or a non-ferrous metal material.

[0086] According to an embodiment of the present specification, the second support member 150 may be made of one or more materials selected from the group consisting of iron (Fe), aluminum (Al), magnesium (Mg) alloy, magnesium-lithium (Li) alloy, aluminum (Al) alloy, and electroplated steel sheet, but is not limited thereto. For example, the electroplated steel sheet may be an electrolytically galvanized steel sheet (also referred to as an electrogalvanized coil or electrogalvanized iron) that is electroplated with zinc (Zn).

[0087] According to the embodiments of the present specification, when the second support member 150 is made of a material containing a non-ferrous metal, it is possible to further improve the low-frequency sound of the vibration generator 300. For example, when the second support member 150 is made of a ferrous metal, vibration loss occurs due to the magnetic field of the vibration generator 300, which may degrade the acoustic characteristics of the vibration generator 300. For example, the low-frequency sound may be, but is not limited to, 200 Hz or less.

[0088] The second support member 150 according to the embodiment of the present specification may include a first portion 151 that implements the rear surface of the display module 100 and a second portion 153 that is disposed in an edge region of the first portion 151. The second portion 153 may support the panel guide 130.

[0089] The first portion 151 may be disposed on the rear surface of the backlight module 120 of the display module 100. For example, the first portion 151 may be disposed so as to cover the rear surface of the backlight module 120 of the display module 100. The first portion 151 may support the backlight module 120. The first portion 151 may be configured to include a plate-like structure. The first portion 151 may support the backlight module 120 of the display module 100 and the vibration generating device 300. For example, the first portion 151 may be configured to contact the rear surface of the reflective sheet 123, thereby transmitting sound vibrations generated by vibrations of the vibration generating device 300 to the reflective sheet 123 of the backlight module 120.

[0090] The first portion 151 may include a middle area (MA) corresponding to (or overlapping with) a middle area of ​​the display module 100 and an edge area (EA) corresponding to (or overlapping with) an edge area (EA) of the display module 100. For example, the first portion 151 may be expressed as, but is not limited to, a lower portion, a bottom portion, a rear portion, a support plate, a flat plate, a plate structure, or a cover plate.

[0091] The second portion 153 may be bent from an end of the first portion 151 to support the panel guide 130. The second portion 153 may provide a backlight receiving space on the first portion 151 and surround one or more sides of the backlight module 120 received (or supported) in the backlight receiving space. The second portion 153 may transmit sound vibrations generated in the first portion 151 by the vibration generator 300 to the panel guide 130. For example, the second portion 153 may be expressed as, but is not limited to, a side portion, a lateral portion, a sidewall portion, a supporting sidewall, a sidewall structure, or a cover sidewall.

[0092] The second portion 153 can be surrounded by the panel guide 130. For example, the second portion 153 can be surrounded by the guide side 133 of the panel guide 130.

[0093] The second support member 150 according to the 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 may be, but is not limited to, a reinforcing portion or a rigidity reinforcing portion.

[0094] The third portion 155 according to the embodiments of the present specification may be disposed between the first portion 151 and the second portion 153. For example, the third portion 155 may be formed in a region (or a connecting region) where the first portion 151 and the second portion 153 intersect. As an example, the third portion 155 may be formed along an edge region (EA) of the first portion 151. For example, the third portion 155 may protrude toward the rear surface from one side or tip of the first portion 151 to have an inclined surface. When the second support member 150 includes the third portion 155, the second portion 153 may be connected to one side of the third portion 155. For example, the second portion 153 may be connected to one tip of the third portion 155.

[0095] According to another example, the first portion 151 of the second support member 150 may have a cross-sectional structure with a concave curve. The second support member 150 may support the backlight module 120 and the panel guide 130 in a concave curved shape. The display panel 110 may be supported by the panel guide 130 in a concave curved shape. Therefore, when the first portion 151 of the second support member 150 has a cross-sectional structure with a concave curve, an internal air gap is provided between the light guide plate 121 and the reflective sheet 123 of the backlight module 120, and the internal air gap acts as a sound box to improve the acoustic characteristics of the low-frequency range generated in the display module 100 by vibration of the vibration generator 300. For example, the second support member 150 including the first portion 151 with a cross-sectional structure with a concave curved shape may be applied to a curved display device.

[0096] The vibration generating device 300 according to the embodiment of the present specification may include first and second vibration generating modules 300-1 and 300-2 respectively arranged in the rear region of the display module 100.

[0097] The first vibration generating module 300-1 may be disposed in an edge region (EA1) of a first rear surface of the display module 100. For example, the first vibration generating module 300-1 may be disposed in or coupled to an edge region (EA1) of a first rear surface of the second support member 150 that corresponds to or overlaps with the edge region (EA1) of the first rear surface of the display module 100.

[0098] The first vibration generating module 300-1 can be configured to vibrate in response to an acoustic signal and output sound (or sound waves) to a first rear edge region (EA1) (or a left edge region) of the edge region (EA) of the display module 100. The sound generated by the first vibration generating module 300-1 is propagated (or transmitted) to the first rear edge region (EA1) of the edge region (EA) of the display module 100, causing the first rear edge region (EA1) of the display module 100 to vibrate, thereby generating sound (S1) that is output toward the front of the display panel 110. In addition, at least a portion (S2) of the high-frequency sound generated by the first vibration generating module 300-1 can be reflected (or diffracted) toward the side of the display module 100 in the space between the first rear edge region (EA1) of the display module 100 and the first vibration generating module 300-1, and output toward the front of the display module 100. For example, the first vibration generating module 300-1 may implement a left sound (or a first sound) of the display device, but is not limited thereto.

[0099] The second vibration generating module 300-2 may be disposed in an edge region (EA2) of the second rear surface of the display module 100. For example, the second vibration generating module 300-2 may be disposed in or coupled to an edge region (EA2) of the second rear surface of the second support member 150 that corresponds to or overlaps with the edge region (EA2) of the second rear surface of the display module 100.

[0100] The second vibration generating module 300-2 can be configured to vibrate in response to an acoustic signal and output sound (or sound waves) to a second rear edge region (EA2) (or a right edge region) of the edge region (EA) of the display module 100. The sound generated by the second vibration generating module 300-2 is propagated (or transmitted) to the second rear edge region (EA2) of the edge region (EA) of the display module 100, causing the second rear edge region (EA2) of the display module 100 to vibrate, thereby generating sound (S1) that is output toward the front of the display panel 110. In addition, at least a portion (S2) of the high-frequency sound generated by the second vibration generating module 300-2 can be reflected (or diffracted) toward the side of the display module 100 in the space between the second rear edge region (EA2) of the display module 100 and the second vibration generating module 300-2, and output toward the front of the display module 100. For example, the second vibration generating module 300-2 may implement a right sound (or a second sound) of the display device, but is not limited thereto.

[0101] Each of the first and second vibration generating modules 300 - 1 , 300 - 2 may include a structure 2310 and a vibration generator 2330 .

[0102] The structure 2310 is arranged on the rear surface of the display module 100 and can be configured to output the sound output from the vibration generator 300 in the lateral direction of the display module 100 .

[0103] The structure 2310 according to the embodiments of the present specification may be expressed as a sound emission supporter, an acoustic emission supporter, an acoustic guide frame, a sound emission guide frame, or an acoustic support frame, but is not limited thereto.

[0104] The structure 2310 can be disposed in the edge area (EA) on the rear surface of the display module 100 and can support the vibration generator 2330. For example, the structure 2310 can be disposed in the edge area (EA) on the rear surface of the second support member 150.

[0105] The structure 2310 according to the embodiments of the present specification may be disposed in the edge area (EA) of the rear surface of the display module 100. For example, the structure 2310 may be supported or connected to the edge area (EA) of the rear surface of the display module 100 via the second connecting member 400. For example, the structure 2310 may be supported or connected to the edge area (EA) of the rear surface of the first portion 151 of the second support member 150 via the second connecting member 400.

[0106] The second connecting member 400 may be disposed between the first portion 151 of the second support member 150 and the structure 2310. The second connecting member 400 may dispose or couple the structure 2310 to the first portion 151 of the second support member 150. The second connecting member 400 may include, but is not limited to, a double-sided tape containing an adhesive resin or having an adhesive layer, a double-sided foam tape, a double-sided foam pad, or a double-sided foam pad tape. The adhesive resin or adhesive layer of the second connecting member 400 according to the embodiments of the present specification may include, but is not limited to, an acrylic-based or urethane-based adhesive material. For example, the adhesive resin or adhesive layer of the second connecting member 400 may include a urethane-based adhesive material that has relatively soft properties compared to an acrylic-based adhesive material that has relatively hard properties in order to prevent or minimize transmission of vibrations of the display module 100 to the structure 2310.

[0107] The second connecting member 400 may be configured with an opening or an open area to solve the problem of sound generated by the vibration generator 300 being trapped between the second support member 150 and the structure 2310 and not being output. For example, the second connecting member 400 may include a side surface having an opening or an open area. For example, the second connecting member 400 may have an open side surface. For example, sound generated by the vibration generator 2330 may be output toward the side of the display module 100 through one side surface of the second connecting member 400, thereby solving the problem of not being able to output high-frequency sound and improving the high-frequency acoustic characteristics of the display device. For example, the high-frequency range may be 3 kHz or higher, but is not limited to this and may be 5 kHz or higher.

[0108] The structure 2310 of the first vibration generating module 300-1 may be disposed on or coupled to an edge area (EA1) of the first rear surface of the second support member 150. The structure 2310 of the second vibration generating module 300-2 may be disposed on or coupled to an edge area (EA2) of the second rear surface of the second support member 150. For example, the structure 2310 of the first vibration generating module 300-1 may be a first structure or a first acoustic structure, and the structure 2310 of the second vibration generating module 300-2 may be a second structure or a second acoustic structure.

[0109] The structure 2310 may provide a first gap space (GS1) between the rear surface of the display module 100 and the vibration generator 2330. For example, the structure 2310 may provide the first gap space (GS1) between the rear edge area (EA) of the second support member 150 and the vibration generator 2330. The first gap space (GS1) may be expressed as a sound generation space, a sound pressure space, a sound emission space, an acoustic emission space, a sound box, or the like, but is not limited thereto.

[0110] The structure 2310 can support the vibration generator 2330. The structure 2310 can be configured so that a portion of the sound (S2) generated by the vibration generator 2330 is repeatedly reflected (or diffracted) in the first gap space (GS1) and output in a lateral direction of the display module 100. For example, the structure 2310 can be disposed so that the vibration generator 2330 is non-parallel to the rear surface of the display module 100 or the rear surface of the second support member 150. For example, the structure 2310 can support the vibration generator 2330 so that the vibration generator 2330 is non-parallel to the rear surface of the display module 100 or the rear surface of the second support member 150. For example, the structure 2310 can support the vibration generator 2330 at an angle from the rear surface of the display module 100.

[0111] The structure 2310 may include a nonlinear portion (NLP) and an acoustic emission port 2316. The nonlinear portion (NLP) may cover an edge of the rear surface of the display module 100. The acoustic emission port 2316 may be spaced apart from the rear surface of the display module 100. The structure 2310 according to an example may include a support portion 2311 and an acoustic guide portion 2313.

[0112] The support part 2311 can be disposed on the rear surface of the display module 100. For example, the support part 2311 can be disposed between the rear surface of the display module 100 and the vibration generating device 300. The support part 2311 can be configured to support the vibration generator 2330. According to an example, the support part 2311 can include a support surface (or an inclined inclined surface) that is inclined non-parallel to the rear surface of the second support member 150, thereby supporting the vibration generator 2330 so that it is inclined from the rear surface of the display module 100.

[0113] The support surface (or inclined surface) of the support portion 2311 may be inclined or tilted at an angle of 5 degrees or less with respect to the rear surface of the second support member 150, but is not limited to this. This allows the support surface (or inclined surface) of the support portion 2311 to support the vibration generator 2330 non-parallel to the rear surface of the display module 100 or the rear surface of the second support member 150.

[0114] The support 2311 may include an opening. For example, the support 2311 may include an opening overlapping the vibration generator 2330. For example, the opening of the support 2311 may be configured to overlap the remaining area of ​​the vibration generator 2330 except for the edge area. The sound guide 2313 may extend from the support 2311 to one side of the display module 100. For example, the sound guide 2313 may extend from the support 2311 toward the side of the display module 100 along the first direction (X) so as to cover the rear edge area (EA) of the display module 100. The sound guide 2313 may be configured to include a nonlinear portion (NLP). The sound guide 2313 may guide a portion of the sound (S2) generated by vibration of the vibration generator 2330 supported by the support 2311 toward the side of the display module 100 via the nonlinear portion (NLP). For example, a portion of the sound (S2) generated by the vibration of the vibration generator 2330 can be reflected (or diffracted) at the second gap space (GS2) between the back surface of the display module 100 and the nonlinear section (NLP) and travel toward the side of the display module 100.

[0115] The nonlinear portion (NLP) can be configured to cover an edge area (EA) on the back surface of the display module 100, which is disposed between the side surface of the display module 100 and the vibration generator 2330. The nonlinear portion (NLP) can guide the sound reflected (or diffracted) at the first gap space (GS1) toward the side surface of the display module 100 or toward the sound outlet 2316. For example, a portion of the sound (S2) generated by the vibration of the vibration generator 2330 can be reflected (or diffracted) at the second gap space (GS2) between the back surface of the display module 100 and the nonlinear portion (NLP) and travel toward the side surface of the display module 100 or toward the sound outlet 2316.

[0116] The nonlinear portion (NLP) according to embodiments of the present specification may be configured to include a cross-sectional structure having a curved shape. For example, the nonlinear portion (NLP) may include a cross-sectional structure that is bent into a curved shape (or a curved shape) between one side adjacent to the vibration generator 2330 and the other side adjacent to one side or lateral surface of the display module 100.

[0117] According to an embodiment of the present specification, the distance between the rear surface of the display module 100 and the nonlinear portion (NLP) may decrease along the first direction (X) toward one side or lateral surface of the display module 100. According to one example, the nonlinear portion (NLP) may include a plurality of curved portions having different radii of curvature. The radii of curvature of each of the plurality of curved portions may be smaller as they approach one side of the display module 100. For example, the radii of curvature of each of the plurality of curved portions may be smaller as they approach the lateral surface of the display module 100. For example, the radii of curvature of the curved portion adjacent to the vibration generator 2330 may be the largest, and the radii of curvature of the curved portion adjacent to one side or lateral surface of the display module 100 may be the smallest.

[0118] The acoustic emission outlet 2316 may be disposed between one side of the nonlinear portion (NLP) and the rear surface of the display module 100. For example, the acoustic emission outlet 2316 may be disposed between an end of the nonlinear portion (NLP) and the rear surface of the display module 100. For example, the acoustic emission outlet 2316 may include, but is not limited to, a slit or slot extending long along the second direction (Y) between the end of the nonlinear portion (NLP) and the display module 100. The acoustic emission outlet 2316 may output the sound (S2) reflected (or diffracted) at a second gap space (GS2) between the rear surface of the display module 100 and the nonlinear portion (NLP) to a side or edge gap (EG; see FIG. 2 ) of the display module 100.

[0119] The vibration generators 2330 of each of the first and second vibration generating modules 300-1, 300-2 can be disposed on the respective structure 2310. For example, the vibration generators 2330 of each of the first and second vibration generating modules 300-1, 300-2 can be configured to be supported or coupled to the respective structure 2310.

[0120] The vibration generator 2330 according to the embodiments of the present specification may be disposed on or coupled to the structure 2310 non-parallel to the rear region of the display module 100. For example, the vibration generator 2330 may be disposed on or coupled to the structure 2310 non-parallel to the rear region of the second support member 150. For example, the vibration generator 2330 may be disposed on or coupled to the structure 2310 non-parallel to the rear region of the second support member 150. For example, the distance between the rear region of the second support member 150 and the vibration generator 2330 may increase toward the side of the display module 100 along the first direction (X).

[0121] The vibration generator 2330 according to the embodiments of the present specification may be disposed on or coupled to the structure 2310 and vibrate in response to an acoustic signal to output sound pressure or sound to the display module 100. For example, the vibration generator 2330 may be inclined or tilted relative to the rear surface region of the second support member 150 and vibrate in response to an acoustic signal, thereby outputting sound or generating sound pressure in the first gap space (GS1) between the rear surface of the second support member 150 and the structure 2310. As a result, sound output from the vibration generator 2330 inclined relative to the rear surface region of the second support member 150 may be repeatedly reflected (or diffracted) within the first gap space (GS1) between the rear surface of the second support member 150 and the structure 2310, and may travel in the lateral direction of the display module 100. As a result, sound generated by sound pressure output from the vibration generator 2330 may be output in the front and lateral directions of the display module 100. For example, at least a portion of the high-frequency sound generated by the vibration generator 2330 is repeatedly reflected (or diffracted) within the first gap space (GS1) and output toward the side of the display module 100 through one side surface of the second connecting member 400 and the sound emission port 2316, thereby improving the high-frequency sound characteristics of the display device.

[0122] The vibration generator 2330 may include a sound actuator or sound exciter, but is not limited to, a sound generator that utilizes a coil (or voice coil) and a magnet.

[0123] Each of the vibration generators 2330 of the first and second vibration generating modules 300-1 and 300-2 according to an embodiment of the present specification may include a module frame 331, a bobbin 332, a magnet member 333, and a coil 334. Each of the vibration generators 2330 of the first and second vibration generating modules 300-1 and 300-2 according to an embodiment of the present specification may further include a center pole 335 and a damper 336.

[0124] The module frame 331 (or base plate) may be disposed on the rear surface of the display module 100. The module frame 331 (or base plate) may be supported by the structure 2310. For example, the module frame 331 may be supported by or coupled to a support portion 2311 of the structure 2310. The module frame 331 according to the embodiment of the present specification may include a first plate 331a, a second plate 331b, and a bracket 331c.

[0125] 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 term.

[0126] The second plate 331b may have a cylindrical shape with a hollow portion and may be disposed at the front end of the first plate 331a. The first plate 331a and the second plate 331b may be formed into a single housing having a "U" shape. For example, the first plate 331a and the second plate 331b are not limited to the term "yoke" and may be expressed by other terms such as "yoke."

[0127] The bracket (or fixed bracket) 331c may protrude from one side or lateral surface of the second plate 331b. The bracket 331c may be supported or coupled to the support portion 2311 of the structure 2310 by a connecting member of the module. This allows the module frame 331 to be supported or coupled to the support portion 2311 of the structure 2310.

[0128] The connecting member of the module according to the embodiment of the present specification may be a screw or a bolt that passes through the bracket 331c and is fastened to the support 2311 of the structure 2310. In this case, an elastic member such as a shock-absorbing pad may be disposed between the support 2311 of the structure 2310 and the bracket 331c. The elastic member may prevent or minimize vibration of the display module 100 from being transmitted to the module frame 331.

[0129] The connecting member of the module according to the embodiment of the present specification can support or connect the bracket 331c or the module frame 331 to the support portion 2311 of the structure 2310. For example, the connecting member of the module can include an adhesive member disposed between the support portion 2311 of the structure 2310 and the bracket 331c. For example, the adhesive member can include, but is not limited to, double-sided tape, double-sided foam tape, double-sided foam pad, double-sided foam pad tape, double-sided adhesive pad, double-sided adhesive gap pad, or double-sided adhesive foam pad.

[0130] 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 rear surface of the second support member 150 and the structure 2310. For example, the bobbin 332 can vibrate the first portion 151 of the second support member 150.

[0131] The bobbin 332 according to the embodiment of the present disclosure may be disposed at a distance from the rear surface of the display module 100. The bobbin 332 may have a cylindrical shape having a hollow portion 332a. For example, the bobbin 332 may be formed of a ring-shaped structure made of a material such as processed pulp or paper, aluminum, magnesium, or an alloy thereof, a synthetic resin such as polypropylene, or a polyamide fiber, but is not limited thereto. The bobbin 332 vibrates, for example, moves up and down due to a magnetic force, thereby outputting sound or generating sound pressure in the first gap space GS1 and vibrating the second support member 150.

[0132] The bobbin 332 according to the embodiments of the present specification may have, but is not limited to, a circular or elliptical shape. The oval-shaped bobbin 332 may include, but is not limited to, an elliptical shape, a rectangular shape with rounded corners, or a non-circular curved shape having a width different from its height. For example, the ratio of the diameter of the major axis to the diameter of the minor axis of the elliptical-shaped bobbin 332 may be 1.3:1 to 2:1. The elliptical-shaped bobbin 332 may improve high-frequency sound compared to a circular-shaped bobbin and may have excellent heat dissipation properties due to less heat generation due to vibration.

[0133] The magnet member 333 can be disposed on the module frame 331 so as to be housed in the hollow portion 332a of the bobbin 332. The magnet member 333 can be, but is not limited to, a permanent magnet inserted into the hollow portion 332a of the bobbin 332.

[0134] The coil 334 is wound around the outer circumferential 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, which is 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 expressed as a voice coil or the like, but is not limited to such a term.

[0135] 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 inserted or housed in the hollow portion 332a of the bobbin 332, thereby being surrounded by the bobbin 332. For example, the center pole 335 can be expressed as an elevation guide or pole pieces, but is not limited to these terms.

[0136] The damper 336 may be disposed between the module frame 331 and the bobbin 332. According to an embodiment of the present specification, the damper 336 may be disposed between the second plate 331b of the module frame 331 and the upper outer periphery of the bobbin 332. The damper 336 has a bellows (or wrinkled) structure between its two sides, allowing it to contract and relax due to the vibration of the bobbin 332. The damper 336 may limit the vibration distance (or vertical movement distance) of the bobbin 332 through its restoring force. For example, if the bobbin 332 vibrates more than or less than a certain distance, the bobbin 332 may return to its original position due to the restoring force of the damper 336. For example, the damper 336 may be expressed by other terms, such as a spider, a suspension, or an edge, but is not limited to these terms.

[0137] The vibration generator 2330 according to the embodiment of the present specification can be expressed as an internal magnet type (or micro type) in which the magnet member 333 is inserted into the hollow portion 332 a of the bobbin 332 .

[0138] The vibration generator 2330 according to the embodiments of the present specification can be expressed as an external magnetic type (or dynamic type) in which the magnet member 333 is disposed so as to surround the outside of the bobbin 332. The external magnetic type vibration generator 2330 is similar to the internal magnetic type vibration generator 2330 except that the magnet member 333 is disposed between the first plate 331a and the second plate 331b, and the center pole 335 is disposed on the first plate 331a so as to be inserted (or housed) in the hollow portion 332a of the bobbin 332, and therefore a description thereof will be omitted.

[0139] The vibration generator 2330 according to the embodiment of the present specification may further include a bobbin protection member 337.

[0140] The bobbin protection member 337 according to the embodiment of the present specification may be disposed between the top of the bobbin 332 and the first portion 151 of the second support member 150. The bobbin protection member 337 is disposed on the top of the bobbin 332 so as to cover the hollow portion 332a of the bobbin 332, thereby protecting the bobbin 332 and preventing deformation of the bobbin 332 due to external impact. The bobbin protection member 337 is embodied so as to cover the hollow portion 332a of the bobbin 332, thereby increasing the sound pressure generated in the first gap space GS1 due to vibration of the bobbin 332.

[0141] The bobbin protection member 337 according to the embodiments of the present specification may be formed in the form of an injection molded product or a metal molded product. For example, the bobbin protection member 337 may be formed of a fiber reinforced material, a composite resin containing a fiber reinforced material, or a metal. In this case, the bobbin protection member 337 may also have a heat dissipation function for dissipating heat generated when the vibration generator 2330 is operated. The fiber reinforced material may be any one of, or a combination of, carbon fiber reinforced plastics (CFRP), glass fiber reinforced plastics (GFRP), and graphite fiber reinforced plastics (GFRP), but is not limited to these.

[0142] As another example, a heat dissipation member may be further included between the display module 100 and the structure 2310. The heat dissipation member may be made of metal. For example, the heat dissipation member may be made of, but is not limited to, aluminum (Al), copper (Cu), silver (Ag), or an alloy thereof. The heat dissipation member may be implemented as a metal plate, a heat dissipation sheet, or a heat dissipation tape. The heat dissipation member may be disposed with the same size as or larger than the vibration generator 300. As another example, the heat dissipation member may be disposed with the same size as or smaller than the second support member 150.

[0143] The vibration generator 2330 according to the embodiments of the present specification may be configured with a twin type structure as shown in Figures 3 and 4. The twin type structure may also be expressed as a two-array structure. The vibration generator 2330 with the twin type structure may include two sub-vibration units 2330a and 2330b arranged on a module frame 331. The vibration generator 2330 including the two sub-vibration units 2330a and 2330b may be expressed as a twin type vibration device, and is not limited to this term.

[0144] The vibration generator 2330 according to the embodiments of the present specification is not limited to the twin type structure shown in Figures 3 and 4, but may be implemented as a single type structure or configured as a structure with two or more arrays. For example, the vibration generator 2330 may be configured as a four-array structure or a six-array structure.

[0145] The vibration generator 2330 of the first vibration generating module 300-1 vibrates in response to an acoustic signal and outputs sound (or sound waves) to the edge region (EA1) of the first rear surface of the display module 100, thereby vibrating the edge region (EA1) of the first rear surface of the display module 100 and outputting sound (S1) in front of the display panel 110. At least a portion of the high-frequency sound output from the vibration generator 2330 of the first vibration generating module 300-1 to the edge region (EA1) of the first rear surface of the display module 100 is reflected (or diffracted) toward the side of the display module 100 by the structure 2310 of the first vibration generating module 300-1 and can be output toward the side and front of the display module 100.

[0146] The vibration generator 2330 of the second vibration generating module 300-2 vibrates in response to an acoustic signal and outputs sound to the edge region (EA2) of the second rear surface of the display module 100, thereby vibrating the edge region (EA2) of the second rear surface of the display module 100 and outputting sound (S1) in front of the display panel 110. At least a portion of the high-frequency sound output from the vibration generator 2330 of the second vibration generating module 300-2 to the edge region (EA2) of the second rear surface of the display module 100 is reflected (or diffracted) by the structure 2310 of the second vibration generating module 300-2 toward the side of the display module 100 and can be output toward the side and front of the display module 100.

[0147] For example, when each vibration generator 2330 of the first and second vibration generating modules 300-1, 300-2 vibrates in response to an acoustic signal, sound (or sound waves) generated by the vibration of the vibration generator 2330 is output to the first gap space (GS1), 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), and sound (S1) generated by the vibration of the edge regions (EA1, EA2) of the display panel 110 due to the sound in the sound transmission space (STS) can be output to the front of the display panel 110, and at least a portion of the high-frequency sound output from the vibration generator 2330 to the first gap space (GS1) can be reflected (or diffracted) by the structure 2310 toward the side of the display module 100 and output toward the side and front of the display module 100.

[0148] Therefore, according to the present specification, at least a portion of high-frequency sound generated by each of the vibration generators 2330 of the first and second vibration generating modules 300-1 and 300-2 is output in a lateral direction of the display module 100, thereby improving the acoustic characteristics of the high-frequency range of the display device. Furthermore, according to the present specification, the inclined vibration generators 2330 increase the reflection area (or reflection space) of the sound generated between the display module 100 and the vibration generating modules 300-1 and 300-2, and the high-frequency sound diffracted in the reflection area increases, thereby improving the reflection characteristics (or diffraction characteristics) of the high-frequency sound output in a lateral direction of the display module 100. As a result, the improvement in the output characteristics of the sound output in the lateral direction of the display module 100 can further improve the acoustic characteristics of the high-frequency range of the display device.

[0149] Therefore, the display device according to the embodiments of the present specification can output sound (S1) generated by vibration of the display module 100 due to sound output from the vibration generator 2330 of the vibration generator 300 disposed in the rear edge area (EA) of the display module 100, and at least a portion of the high-frequency sound output from the vibration generator 2330 of the vibration generator 300 can be guided by the structure 2310 of the vibration generator 300 toward the side of the display module 100 and output toward the side and front of the display module 100. Therefore, the display device according to the embodiments of the present specification can improve the acoustic characteristics of the high-frequency sound by the sound (S2) output toward the side of the display module 100.

[0150] Furthermore, in the display device according to the embodiments of the present specification, the vibration generator 2330 of the vibration generator 300 is disposed non-parallel or tilted to the rear surface of the display module 100, thereby increasing the reflection area of ​​the sound (S2) reflected (or diffracted) between the display module 100 and the vibration generator 300, and increasing the amount of high-frequency sound diffracted in the reflection area, thereby improving the reflection characteristics (or diffraction characteristics) of the high-frequency sound output toward the side of the display module 100. As a result, the sound output characteristics output toward the side of the display module 100 are improved, and the high-frequency sound characteristics of the display device can be further improved.

[0151] FIG. 6 is a diagram showing the structure of a vibration generating module according to an embodiment of the present specification, and FIG. 7 is a cross-sectional view taken along line CC' shown in FIG.

[0152] 4 to 7, the structure 2310 of the vibration generating modules 300-1 and 300-2 according to the embodiment of the present specification may include a support portion 2311, an acoustic guide portion 2313, and an acoustic outlet 2316.

[0153] The support portion 2311 can be disposed in a rear region of the second support member 150. The support portion 2311 can be supported or connected to the rear region of the second support member 150 via a second connecting member 400.

[0154] The support portion 2311 according to the embodiment of the present specification may include first to third support portions 2311a, 2311b, 2311c, and an opening 2311d.

[0155] The first support portion 2311a can be arranged along the first direction (X) and configured to support a first side of the vibration generator 2330. The second support portion 2311b can be configured to support a second side of the vibration generator 2330 in parallel with the first support portion 2311a.

[0156] Each of the first and second support parts 2311a and 2311b according to the embodiments of the present specification may 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 2311a and 2311b may gradually increase or become thicker toward one side or lateral surface of the display module 100 along the first direction (X).

[0157] Each of the first and second support parts 2311a and 2311b according to the embodiment of the present specification may include a first surface and a second surface. The first surface may be adjacent to the rear region of the display module 100. The second surface may be embodied non-parallel to the rear region of the display module 100. The second surface may support the vibration generator 2330.

[0158] The first surfaces of the first and second support portions 2311 a and 2311 b can be parallel to the rear surface of the display module 100 .

[0159] The second surfaces of the first and second support portions 2311 a, 2311 b may be inclined or tilted away from the rear surface of the display module 100, opposite to the first surfaces. The second surfaces of the first and second support portions 2311 a, 2311 b may be, but are not limited to, top surfaces, support surfaces, or inclined surfaces.

[0160] The second surfaces of the first and second support parts 2311a and 2311b may be inclined or tilted at an angle (θ1) of 5 degrees or less with respect to the rear surface of the display module 100. As a result, the second surfaces of the first and second support parts 2311a and 2311b may position the vibration generator 2330 non-parallel to the rear surface of the display module 100 or the rear surface of the second support member 150. For example, the angle (θ1) between the first surface and the second surface of each of the first and second support parts 2311a and 2311b may be, but is not limited to, 1 to 5 degrees.

[0161] In each of the first and second support parts 2311a and 2311b, the thickness between the first and second surfaces may gradually increase or become thicker as it goes toward one side or a lateral surface of the display module 100 along the first direction (X). For example, in each of the first and second support parts 2311a and 2311b, the distance between the first and second surfaces may increase as it goes from the third support part 2311c toward the sound guide part 2313 along the first direction (X).

[0162] The third support portion 2311c may be disposed along the second direction (Y) and may be disposed between one side of the first support portion 2311a and one side of the second support portion 2311b. The third support portion 2311c may be configured to support a third side of the vibration generator 2330.

[0163] The third support portion 2311c according to the embodiment of the present specification may 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 portion 2311c may gradually increase or become thicker toward one side or lateral surface of the display module 100 along the first direction (X).

[0164] The third support portion 2311c may 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 may support a third side of the vibration generator 2330. For example, in the third support portion 2311c, the distance between the first surface and the second surface may increase from the third support portion 2311c toward the sound guide portion 2313 along the first direction (X).

[0165] The first surfaces of the first to third support portions 2311a, 2311b, and 2311c can be disposed on the rear surface of the display module 100 or the rear surface of the second support member 150. The first surfaces of the first to third support portions 2311a, 2311b, and 2311c can be supported by 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 surfaces of the first to third support portions 2311a, 2311b, and 2311c can be disposed at the edges of the rear surface of the vibration generator 2330 on the first to third sides. The second surfaces of the first to third support portions 2311a, 2311b, and 2311c can support the edges of the rear surface of the vibration generator 2330 on the first to third sides. This allows the vibration generator 2330 to be non-parallel to the rear surface of the display module 100 or the rear surface of the second support member 150 .

[0166] The opening 2311d can be surrounded by the first to third support portions 2311a, 2311b, and 2311c. The opening 2311d can overlap the vibration generator 2330. The opening 2311d can overlap the remaining portion of the vibration generator 2330 excluding the first to third edge portions. For example, the opening 2311d can provide a first gap space (GS1) between the inclined vibration generator 2330 and the rear surface of the display module 100 (or the rear surface of the second support member 150).

[0167] The vibration generator 2330 supported by the support part 2311 is inclined from the rear surface of the display module 100 (or the rear surface of the second support member 150), so that the distance between the vibration generator 2330 and the rear surface of the display module 100 gradually increases along the first direction (X) toward one side or lateral surface of the display module 100, or may increase along the first direction (X) from the third support part 2311c toward the acoustic guide part 2313.

[0168] The sound guide portion 2313 may be configured to extend from the support portion 2311 along the first direction (X) and be disposed in the peripheral region of the rear surface of the second support member 150.

[0169] The sound guide portion 2313 may have a first length parallel to a first direction (X), a second length parallel to a second direction (Y), and a thickness parallel to a third direction (Z).

[0170] According to an embodiment of the present specification, the first length of the sound guide unit 2313 may be set to be 3 mm or more and equal to or less than the entire length of the vibration generator 2330 in order to increase a reflection area (or reflection space) of sound traveling in a lateral direction of the display module 100. For example, if the first length of the sound guide unit 2313 is less than 3 mm, the length of the reflection area (or reflection space) of sound traveling in a lateral direction of the display module 100 is reduced, which may result in a problem in that reflection characteristics of high-frequency sound cannot be obtained. For example, the first length of the sound guide unit 2313 may be longer than half the length of the vibration generator 2330 and shorter than the entire length of the vibration generator 2330 based on the first direction (X).

[0171] The sound guide portion 2313 according to the embodiment of the present specification may include a first extension portion 2313a, a second extension portion 2313b, and a cover portion 2313c.

[0172] The first extension portion 2313a can extend from the first support portion 2311a of the support portion 2311 along the first direction (X). The second extension portion 2313b can extend from the second support portion 2311b of the support portion 2311 parallel to the first extension portion 2313a. For example, each of the first and second extension portions 2313a, 2313b can extend from one side, for example, the tip, of the support portion 2311 so as to have a length along the first direction (X) of 3 mm or more and half or less of the vibration generator 2330.

[0173] Each of the first and second extension portions 2313a, 2313b may include a first surface and a second surface. The first surface may be adjacent to the rear region of the display module 100. The second surface may support the cover portion 2313c and may be non-parallel to the rear region of the display module 100.

[0174] A first surface of each of the first and second extensions 2313a, 2313b can be parallel to the rear surface of the display module 100. A second surface of each of the first and second extensions 2313a, 2313b can be non-parallel to the rear surface of the display module 100, opposite to the first surface.

[0175] According to an embodiment of the present specification, the second surface of each of the first and second extension portions 2313a and 2313b may include a second surface 2-1 extending from the second surface of the support portion 2311 along the first direction (X) and a second surface 2-2 extending in a curved shape from an end of the second surface 2-1 along the first direction (X). For example, in each of the first and second extension portions 2313a and 2313b, the distance (or thickness) between the first surface and the second surface 2-1 may be the same. In each of the first and second extension portions 2313a and 2313b, the distance (or thickness) between the first surface and the second surface 2-2 may gradually decrease toward one side or lateral sides of the display module 100 along the first direction (X).

[0176] The cover portion 2313c can be configured to cover an edge area (EA) on the back of the display module 100 that is disposed between one side or lateral surface of the display module 100 and the vibration generator 2330. The cover portion 2313c can be disposed on the first extension portion 2313a and the second extension portion 2313b and cover the space between the first extension portion 2313a and the second extension portion 2313b.

[0177] The space covered by the cover portion 2313c and provided between the first extension portion 2313a and the second extension portion 2313b on the rear surface of the display module 100 (or the rear surface of the second support member 150) may be a second gap space (GS2) connected (or communicating) with the first gap space (GS1) between the rear surface of the display module 100 and the vibration generator 2330. The sound output from the vibration generator 2330 to the first gap space (GS1) may travel (or propagate) toward the sound emission port 2316 while being reflected (or diffracted) at least once in each of the first gap space (GS1) and the second gap space (GS2).

[0178] The cover portion 2313c according to the embodiments of the present specification may 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 cover portion 2313c may extend from one side, for example, the tip, of the support portion 2311 to have a first length that is 3 mm or more and less than the entire length of the vibration generator 2330. For example, the first length of the cover portion 2313c may be longer than half the length of the vibration generator 2330 and shorter than the entire length of the vibration generator 2330.

[0180] The distance between the rear surface of the display module 100 (or the rear surface of the second support member 150) and the cover portion 2313c is gradually reduced toward one side or lateral surface of the display module 100 along the first direction (X), thereby reducing the thickness of the edge portion of the first support member 500 covering the edge area (EA) of the display module 100. This reduces the thickness of the edge portion of the display device overlapping the edge area (EA) of the display module 100. For example, the edge portion of the rear surface of the first support member 500 overlapping the cover portion 2313c may be configured to include a sloped third portion 550 between the first portion 510 and the second portion 530, thereby reducing the thickness of the edge portion of the display device.

[0181] The cover portion 2313c according to the embodiment of the present specification may include a linear portion (LP) and a nonlinear portion (NLP). For example, the cover portion 2313c may be a plate structure, a plate structure, or a three-dimensional plate having a linear portion (LP) and a nonlinear portion (NLP).

[0182] The linear portion (LP) may be disposed adjacent to the support portion 2311. For example, the linear portion (LP) may be disposed on the first and second extension portions 2313a and 2313b. The linear portion (LP) may cover the space between the first and second extension portions 2313a and 2313b. The linear portion (LP) may be configured to be disposed on the 2-1 surface of each of the first and second extension portions 2313a and 2313b. According to an example, the distance (or thickness) between the rear surface of the display module 100 (or the rear surface of the second support member 150) and the linear portion (LP) may be the same along the first direction (X). For example, the linear portion (LP) may have a plate-like structure having a rectangular shape. For example, the linear portion (LP) may be a planar portion, a flat portion, a planar structure, or a planar cover.

[0183] The nonlinear portion (NLP) may extend to one side of the display module 100. For example, the nonlinear portion (NLP) may extend to a side of the display module 100. It may extend from one side, e.g., the tip, of the linear portion (LP) along the first direction (X) to one side, e.g., the side, of the display module 100 to have a curved (or curved) cross-sectional structure. According to an example, the nonlinear portion (NLP) may be disposed on the 2-2 surface of each of the first and second extension portions 2313a and 2313b to have a curved (or curved) cross-sectional structure. For example, the nonlinear portion (NLP) may include a curved (or curved) cross-sectional structure between one side adjacent to the linear portion (LP) and the other side adjacent to one side or side of the display module 100. For example, the nonlinear portion (NLP) may be a curved portion, a curved structure, or a curved cover. For example, the nonlinear portion (NLP) may be a round-shaped acoustic guide, and is not limited to the term. For example, the acoustic guide portion 2313 may be a round-shaped acoustic guide, and is not limited to the term.

[0184] According to an embodiment of the present specification, the distance (or thickness) between the rear surface of the display module 100 (or the rear surface of the second support member 150) and the nonlinear portion (NLP) may gradually decrease toward one side or lateral surface of the display module 100 along the first direction (X).

[0185] The nonlinear portion (NLP) according to the embodiments of the present specification may include a plurality of curved portions (P1, P2, P3, P4). According to one example, at least one of the plurality of curved portions (P1, P2, P3, P4) may have a different radius of curvature. According to another example, the plurality of curved portions (P1, P2, P3, P4) may have a different radius of curvature from each other. For example, among the plurality of curved portions (P1, P2, P3, P4), the radius of curvature of the curved portion (P1) adjacent to the vibration generator 2330 may be the largest, and the radius of curvature of the curved portion (P4) adjacent to a side of the display module 100 may be the smallest. For example, the radius of curvature of each of the plurality of curved portions (P1, P2, P3, P4) may gradually decrease from the vibration generator 2330 to one side or side of the display module 100 along the first direction (X). As a result, the distance (or thickness) between the rear surface of the display module 100 (or the rear surface of the second support member 150) and the nonlinear portion (NLP) can gradually decrease toward one side or lateral surface of the display module 100 along the first direction (X).

[0186] According to an embodiment of the present specification, the curved portions (P1, P2, P3, P4) may have the same or different lengths in the first direction (X). For example, the lengths of the curved portions (P1, P2, P3, P4) in the first direction (X) may be the same or may gradually increase or decrease toward one side or lateral sides of the display module 100.

[0187] According to an embodiment of the present specification, the linear portion (LP) and the nonlinear portion (NLP) may have the same or different lengths in the first direction (X). For example, the nonlinear portion (NLP) may have a longer length than the linear portion (LP) in the first direction (X), but is not limited thereto.

[0188] The cover portion 2313c according to the embodiment of the present specification may further include a first surface (OW1) and a second surface (OW2). The first surface (OW1) may be a first sidewall. The second surface (OW2) may be a second sidewall.

[0189] The first surface (OW1) may be the outer surface (or outer wall) of the linear portion (LP) parallel to the second direction (Y). The first surface (OW1) can prevent the vibration generator 2330 from moving by wrapping around the side surface of the fourth side of the vibration generator 2330 so as to be inclined toward the support portion 2311. For example, both edge portions of the first surface (OW1) may include curved portions corresponding to the corner portions of the curved surface of the vibration generator 2330. For example, the first surface (OW1) may be disposed parallel to the second direction (Y) so as to be adjacent to the support portion 2311 and directly contact one side or side of the fourth side of the vibration generator 2330.

[0190] The second surface (OW2) may be an outer surface (or outer wall) of the nonlinear portion (NLP) parallel to the second direction (Y). The second surface (OW2) may be configured parallel to the third direction (Z). For example, the second surface (OW2) may be a cut surface of the nonlinear portion (NLP) cut along the third direction (Z).

[0191] 5, the second surface (OW2) may be in direct contact with the second portion 530 of the first support member 500. For example, the second surface (OW2) may be in direct contact with the first surface or inner surface of the second portion 530, thereby preventing sound output to the edge gap (EG) through the sound outlet 2316 from leaking between the display module 100 and the first portion 510 of the first support member 500 through the space between the second sidewall (OW2) and the second portion 530.

[0192] The sound emission opening 2316 may be disposed along the third direction (Z) parallel to the second direction (Y) between the second surface (OW2) of the sound guide unit 2313 and the rear surface of the display module 100. For example, the sound emission opening 2316 may be a space between the second surface (OW2) of the sound guide unit 2313 and the display module 100. In one example, the sound emission opening 2316 may have the form of a slit or slot extending long along the second direction (Y) between the second surface (OW2) of the sound guide unit 2313 and the display module 100.

[0193] According to an embodiment of the present specification, the distance (D1) between the second surface (OW2) of the tip (or nonlinear portion (NLP)) of the sound guide unit 2313 and one side or lateral surface of the display module 100 may be 1±0.5 mm based on the first direction (X) so that the sound (S2) traveling through the sound guide unit 2313 is smoothly output toward the front of the display module 100 through the sound outlet 2316. For example, the distance (D1) between the second surface (OW2) of the sound guide unit 2313 and one side or lateral surface of the panel guide 130 may be 1±0.5 mm based on the first direction (X).

[0194] According to an embodiment of the present specification, the shortest distance between the second surface (OW2) of the sound guide unit 2313 and the display module 100 may be ±0.5 mm based on the third direction (Z) so that the sound (S2) traveling through the sound guide unit 2313 is smoothly output toward the front surface of the display module 100 through the sound outlet 2316. For example, the shortest distance between the second surface (OW2) of the sound guide unit 2313 and one side or lateral surface of the panel guide 130 may be ±0.5 mm based on the third direction (Z).

[0195] According to an embodiment of the present specification, the shortest distance (D2) between one side or lateral surface of the display module 100 (or one side or lateral surface of the panel guide) and the vibration generator 2330 in the first direction (X) may be set to, but is not limited to, 30 to 60 mm. If the shortest distance (D2) between one side or lateral surface of the display module 100 (or one side or lateral surface of the panel guide) and the vibration generator 2330 in the first direction (X) is 60 mm or more, the reflection characteristics of high-frequency sound generated between the display module 100 and the vibration generator 300 may be reduced.

[0196] For example, taking into consideration the acoustic reflection characteristics of the high-frequency range and the thickness of the edges of the display device, the shortest distance (D2) between the side of the panel guide 130 and the vibration generator 2330 can be set to 30 to 35 mm, but is not limited to this.

[0197] The structure 2310 of the vibration generating modules 300-1 and 300-2 according to the embodiment of the present specification may further include a protrusion 2317 and a recess 2318.

[0198] The protrusions 2317 may be a pair. The protrusions 2317 may be corner protrusions or corner bumps. The pair of protrusions 2317 may protrude from corner portions on both sides of the sound guide 2313 along the third direction (Z). For example, the protrusions 2317 may protrude from corner portions of both edges of the sound guide 2313 along the third direction (Z). The pair of protrusions 2317 may surround a portion of a side surface of the display module 100. For example, the inner surfaces of each of the pair of protrusions 2317 may be in contact with or spaced apart from the side surface of the display module 100. For example, the inner surfaces of each of the pair of protrusions 2317 may be in contact with or spaced apart from one side or side surface of the panel guide 130. The pair of protrusions 2317 may block the sound (S2) output through the sound emission port 2316 from being output in the second direction (Y). The pair of protrusions 2317 can define the length of the sound emission port 2316 with respect to the second direction (Y).

[0199] The recess 2318 can be configured as a recess between the first extension portion 2313a and the second extension portion 2313b of each acoustic guide portion 2313 of the pair of protrusions 2317. The recess 2318 can accommodate the guide side portion 133 of the panel guide 130, thereby preventing physical contact between the panel guide 130 and the structure 2310, which are moving along the third direction (Z). This can prevent the structure 2310 from floating up due to the movement of the panel guide 130.

[0200] The structure 2310 of the vibration generating modules 300-1 and 300-2 according to the embodiment of the present specification may further include a sound reflection preventing member 2319.

[0201] The sound reflection prevention member 2319 may be disposed on the third surfaces 2311e and 2313d of the support member 2311 and the sound guide member 2313, which are parallel to the first direction (X). The third surfaces 2311e and 2313d may be inner surfaces. For example, the sound reflection prevention member 2319 may be disposed on the third surfaces 2311e and 2313d of the support member 2311 and the sound guide member 2313. The sound reflection prevention member 2319 can improve the deep sound phenomenon by preventing sound in the first and second gap spaces (GS1 and GS2) from being reflected by the third surfaces 2311e and 2313d of the support member 2311 and the sound guide member 2313. For example, the sound reflection prevention member 2319 may be a sound absorbing member. For example, the sound reflection prevention member 2319 may be, but is not limited to, a pad, tape, foam tape, sponge, or foam pad.

[0202] According to an embodiment of the present specification, the sound reflection preventing member 2319 may be configured to cover one or all of the third surfaces 2311e of the first and second support portions 2311a and 2311b of the support portion 2311 and the third surfaces 2313d of the first and second extension portions 2313a and 2313b of the sound guiding portion 2313. For example, the sound reflection preventing member 2319 may be configured in a shape corresponding to the third surface 2311e of the first support portion 2311a and the third surface 2313d of the first extension portion 2313a. The sound reflection preventing member 2319 may be attached to one or more of the third surface 2311e of the first support portion 2311a and the third surface 2313d of the first extension portion 2313a, or to the entirety of both. In addition, the sound reflection preventing member 2319 may be configured in a shape corresponding to the third surface 2311e of the second supporting portion 2311b and the third surface 2313d of the second extending portion 2313b. The sound reflection preventing member 2319 may be attached to one or more of the third surface 2311e of the second supporting portion 2311b and the third surface 2313d of the second extending portion 2313b, or to the entire surface.

[0203] Figure 8 is a diagram showing a display device according to another embodiment of the present specification, and Figure 9 is a cross-sectional view taken along line D-D' in Figure 8, which shows a display device in which the structure of the second support member is modified from the display device shown in Figures 1 to 7. Therefore, 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 Figures 3 to 7, and redundant description thereof will be omitted or will be described briefly.

[0204] 8 and 9, in a display device according to another embodiment of the present specification, the second support member 150 may further include at least one hole 157 overlapping with the vibration generator 300. For example, the second support member 150 may be made of a material containing the above-mentioned iron metal.

[0205] The hole 157 may be formed in the first portion 151. For example, the hole 157 may be formed in the first portion 151 so as to overlap with the vibration generator 300.

[0206] The hole 157 according to the embodiment of the present specification may be configured in the first portion 151 to overlap with the magnetic field region of the vibration generator 300. The second support member 150 may support the remaining portion of the vibration generator 300 excluding the magnetic field region. The hole 157 may overlap with the magnetic field regions of the first and second vibration generating modules 300-1 and 300-2 of the vibration generator 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. This prevents or minimizes distortion of the magnetic field formed in the vibration generator 300 by the first portion 151 of the second support member 150, thereby improving the acoustic output characteristics of the vibration generator 300, for example, the acoustic output characteristics of each of the first and second vibration generating modules 300-1 and 300-2.

[0207] The hole 157 according to the embodiment of the present specification may 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 may overlap with the vibration generator 2330 configured in each of the first and second vibration generating modules 300-1 and 300-2. For example, the hole 157 may overlap with the bobbin 332 or the magnet member 333 of the vibration generator 2330.

[0208] The hole 157 according to the embodiment of the present specification may have a size larger than the bobbin 332 or the magnet member 333 of the vibration generator 2330. For example, the hole 157 may have a polygonal, circular, or elliptical shape larger than the bobbin 332 or the magnet member 333, but is not limited thereto. For example, the hole 157 may be formed by a patterning process or a drilling process on the second support member 150, but is not limited thereto. For example, the hole 157 may be expressed as a first hole, a cover hole, a pattern hole, a hole pattern, a through hole, a drilled hole, or the like, but is not limited thereto.

[0209] The sound output from each of the first and second vibration generating modules 300-1 and 300-2 of the vibration generating device 300 can be output toward the front of the display module 100 through the hole 157. At least a portion (S2) of the high-frequency sound output from each of the first and second vibration generating modules 300-1 and 300-2 can be output toward the side of the display module 100.

[0210] Therefore, in the display device according to another embodiment of the present specification, at least a portion of high-frequency sound generated by vibration of the vibration generator 300 is guided toward the side of the display module 100 by the structure 2310 of the vibration generator 300 and output toward the side and front of the display module 100, thereby improving the acoustic characteristics of the high-frequency sound by the sound (S2) output toward the side of the display module 100. In addition, 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 generator 300, thereby preventing or minimizing the magnetic field distortion phenomenon of the vibration generator 300 due to the second support member 150, thereby improving the acoustic output characteristics of the vibration generator 300. As a result, the acoustic output characteristics due to the vibration of the vibration generator 300 can be improved.

[0211] Figure 10 is a diagram showing a display device according to another embodiment of the present specification, and Figure 11 is a cross-sectional view taken along line E-E' in Figure 10, which shows the display device shown in Figures 8 and 9 with a plate added. Therefore, in the following description, the plate will be described in detail, and the remaining components will be given the same reference numerals as in Figures 3 to 9, and redundant description thereof will be omitted or will be described briefly.

[0212] 10 and 11, a display device according to another embodiment of the present disclosure may further include a plate 700 disposed between the display module 100 and the vibration generating device 300.

[0213] The plate 700 may 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 rear surface of the display module 100. For example, the plate 700 may be disposed between each of the structures 2310 of the first and second vibration generating modules 300-1 and 300-2 and the rear surface of the display module 100. For example, the plate 700 may be disposed between the second support member 150 and the vibration generating device 300. For example, the plate 700 may be disposed between each of the structures 2310 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 may support each of the structures 2310 of the first and second vibration generating modules 300-1 and 300-2.

[0214] The plate 700 according to the embodiment of the present specification may be connected or coupled to the first part 151 of the second support member 150 overlapping the vibration generator 300 to support the vibration generator 300. For example, the plate 700 may be connected or disposed on the first part 151 of the second support member 150 so as to cover the hole 157 of the second support member 150.

[0215] The plate 700 according to the embodiment of the present specification may be configured to have a size larger than the hole 157 of the second support member 150. For example, the plate 700 may be configured to be the same size as or larger than the first and second vibration generating modules 300-1 and 300-2 of the vibration generating device 300, respectively.

[0216] The plate 700 may be made of a different material from the second support member 150. The plate 700 according to the embodiments of the present specification may be made of a non-ferrous metal. For example, if the plate 700 is made of a ferrous metal, distortion of the magnetic field generated in the vibration generator 300 may occur. To prevent or reduce the magnetic field distortion of the vibration generator 300 due to the plate 700, the plate 700 may be made of a non-ferrous metal. For example, the plate 700 may be made of a material other than the iron (Fe)-based material contained in the magnet member 333 of the vibration generator 2330. For example, the plate 700 may be made of one or more materials selected from the group consisting of aluminum (Al), magnesium (Mg), magnesium (Mg) alloy, magnesium-lithium (Li) alloy, and aluminum (Al) alloy, but is not limited thereto. For example, the plate 700 may be made of a material that does not contain iron (Fe). Therefore, by preventing or minimizing the phenomenon in which the magnetic field formed in the vibration generating device 300 is distorted by the second support member 150 or the plate 700, the acoustic output characteristics of the vibration generating device 300, for example, the acoustic output characteristics of each of the first and second vibration generating modules 300-1 and 300-2, can be improved.

[0217] The plate 700 according to the embodiment of the present specification may further include a communication hole 710.

[0218] The communication hole 710 may overlap with the hole 157 disposed in the second support member 150. The communication hole 710 may communicate the first gap space (GS1) with the hole 157 disposed in the second support member 150. The communication hole 710 may be an acoustically transparent area through which sound (or sound waves) output from the vibration generating device 300 is transmitted (or propagated) to the rear surface of the display module 100.

[0219] The communication hole 710 according to the embodiment of the present specification may have a size relatively smaller than that of the hole 157 disposed in the second support member 150. According to an example, the communication hole 710 may include a first length parallel to the first direction (X) and a second length parallel to the second direction (Y) that is longer than the first length. The communication hole 710 may be configured to extend along the second direction (Y).

[0220] The communication holes 710 according to the embodiments of the present disclosure may have a different shape from the holes 157 disposed in the second support member 150. The communication holes 710 may have, but are not limited to, a polygonal, circular, or elliptical shape. For example, the communication holes 710 may have a slit shape overlapping the holes 157 disposed in the second support member 150, and both side edges of the communication holes 710 may include rounded portions having a curved surface shape. According to an example, the communication holes 710 may be formed by a patterning process or a drilling process on the plate 700, but are not limited to these. For example, the communication holes 710 may be expressed as, but are not limited to, second holes, connecting holes, air holes, pattern holes, hole patterns, through holes, or drilled holes.

[0221] The plate 700 including the communication holes 710 according to the embodiment of the present specification may be an acoustic balance member. The plate 700 may be configured to maintain a balance between front sound (or transmitted sound) traveling in a front direction of the display module 100 and side sound (or reflected sound) traveling in a side direction of the display module 100, among the sounds generated from the vibration generator 300. For example, the plate 700 may be configured to maintain a balance between sound transmitted (or propagated) to the display module 100 and sound reflected in the first gap space (GS1) while maintaining output (or emission) characteristics of a high-frequency band output in a side direction of the display module 100 according to the sound generated by the vibration generator 300.

[0222] According to an embodiment of the present specification, in order to maintain a balance of the sounds generated by the vibration generator 300, the communication hole 710 may overlap only a portion of the magnetic field region formed in the vibration generator 300. The communication hole 710 may overlap less than half of the magnetic field region formed in the vibration generator 300. The communication hole 710 may overlap a portion of the bobbin 332 or the magnet member 333 of the vibration generator 2330 configured in each of the first and second vibration generating modules 300-1 and 300-2 of the vibration generator 300. The communication hole 710 may be configured to have a smaller size than the bobbin 332 or the magnet member 333 of the vibration generator 2330 configured in each of the first and second vibration generating modules 300-1 and 300-2 of the vibration generator 300. For example, based on the cross-sectional length of the vibration generator 2330 along the first direction (X), the cross-sectional length of the communication hole 710 may be 40% or less of the cross-sectional length of the bobbin 332 or the magnet member 333. If the cross-sectional length of the communication hole 710 exceeds 40%, the balance between the sound transmitted (or propagated) to the display module 100 and the sound reflected by the first gap space (GS1) may not be maintained, and the sound output characteristics of the vibration generator 300 may be reduced. For example, the communication hole 710 may be omitted.

[0223] The plate 700 according to the embodiment of the present specification may be connected or coupled to the first portion 151 of the second support member 150 via the third connection member 600 so as to cover the hole 157 of the second support member 150 .

[0224] The third connecting member 600 may be disposed between the first portion 151 of the second support member 150 and an edge of the plate 700. The third connecting member 600 may dispose or connect the plate 700 to the first portion 151 of the second support member 150. The third connecting member 600 may include, but is not limited to, a double-sided tape, a double-sided foam tape, a double-sided foam pad, or a double-sided foam pad tape having an adhesive resin or an adhesive layer. The adhesive resin or adhesive layer of the third connecting member 600 according to the embodiment of the present specification may include, but is not limited to, an acrylic-based or urethane-based adhesive material. For example, the adhesive resin or adhesive layer of the third connecting member 600 may include a urethane-based adhesive material that has relatively soft properties compared to an acrylic-based adhesive material that has relatively hard properties, in order to prevent or minimize transmission of vibrations of the display module 100 to the vibration generating device 300.

[0225] The vibration generator 300 is substantially the same as the vibration generator 300 shown in Figures 3 to 10 except that it is supported or connected to the plate 700 via the second connecting member 400, so redundant explanations regarding this will be omitted or simplified.

[0226] In the vibration generating device 300, the structures 2310 of the first and second vibration generating modules 300-1 and 300-2 can be disposed on the plate 700 via the second connecting members 400. For example, the structures 2310 of the first and second vibration generating modules 300-1 and 300-2 can be supported or connected to the plate 700 via the second connecting members 400.

[0227] In the vibration generating device 300, the vibration generators 2330 of the first and second vibration generating modules 300-1 and 300-2 are disposed in the corresponding structure 2310 and can output sound toward the plate 700 and the communication holes 710 of the plate 700. A portion of the sound output from the vibration generators 2330 is transmitted to the rear surface of the display module 100 through the communication holes 710 of the plate 700 and the holes 157 of the second support member 150, respectively, and the remaining sound output from the vibration generators 2330 is reflected toward the side of the display module 100 by a first gap space GS1 between the plate 700 and the vibration generator 2330 and a second gap space GS2 between the plate 700 and the sound guide part 2313 of the structure 2310, and can be output toward the front surface of the display module 100 through the sound outlet 2316 of the structure 2310.

[0228] The second connecting member 400 may be disposed between the plate 700 and the structure 2310 to position or join the structure 2310 to the plate 700. The second connecting member 400 may include, but is not limited to, a double-sided tape containing an adhesive resin or having an adhesive layer, a double-sided foam tape, a double-sided foam pad, or a double-sided foam pad tape.

[0229] Therefore, the display device according to another embodiment of the present specification may have the same or similar effects as the display device shown in Figures 8 and 9. In addition, 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 generator 300, and the plate 700 disposed between the second support member 150 and the vibration generator 300, thereby preventing or minimizing the magnetic field distortion phenomenon of the vibration generator 300 due to the second support member 150, thereby improving the acoustic output characteristics of the vibration generator 300. As a result, the acoustic output characteristics due to the vibration of the vibration generator 300 may be improved. Furthermore, a display device according to another embodiment of the present specification further includes a communication hole 710 arranged 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 by the vibration generator 300. This makes it possible to maintain an acoustic balance between the front sound generated by the vibration generator 300, which travels in the front direction of the display module 100, and the side sound, which travels in the side direction of the display module 100, thereby further improving the acoustic output characteristics of the vibration generator 300. As a result, the acoustic output characteristics due to the vibration of the vibration generator 300 can be further improved.

[0230] Figure 12 is a view showing the rear of a display device according to another embodiment of the present specification, and Figure 13 is a cross-sectional view taken along line F-F' in Figure 12, which shows a modified structure of the structure of the display device shown in Figures 3 to 5. Therefore, in the following description, the structure will be described in detail, and the remaining components will be given the same reference numerals as in Figures 3 to 5, and redundant description thereof will be omitted or will be described briefly.

[0231] 12 and 13, in a display device according to another embodiment of the present disclosure, the structure 2310 may further include a sound emitting portion 2315.

[0232] The sound emitting unit 2315 may be configured at the tip of the sound guiding unit 2313 to be parallel to the second direction (Y). The sound emitting unit 2315 may be configured to output the sound (S2) traveling through the sound guiding unit 2313 toward the front of the display module 100.

[0233] The sound emitting portion 2315 according to the embodiments of the present specification may be configured to protrude from one side of the sound guiding portion 2313. For example, the sound emitting portion 2315 may be configured to protrude from the leading end of the sound guiding portion 2313 along the thickness direction (Z) of the display module. The sound emitting portion 2315 may include an inclined surface that reflects the sound (S2) traveling through the sound guiding portion 2313 toward the sound emitting opening 2316. For example, the sound emitting portion 2315 may have a triangular cross-sectional structure. The apex of the sound emitting portion 2315 having a triangular cross-sectional structure may be spaced apart from the side of the display module 100 to output the sound (S2). For example, the sound emitting portion 2315 may be expressed as, but is not limited to, a protrusion, a triangular protruding portion, a sound emitting portion, a triangular protruding tip, or a sound emitting tip. The sound emission part 2315 can increase the sound (S2) output toward the side of the display module 100 or increase the output efficiency of the sound (S2) by reflecting the sound (S2) traveling through the sound guide part 2313 toward the sound emission port 2316 via the inclined surface or triangular protrusion part.

[0234] The sound emission opening 2316 of the structure may be disposed between the sound emission unit 2315 and the display module 100 along the second direction (Y). For example, the sound emission opening 2316 may have the shape of a slit or slot extending long along the second direction (Y) between the sound emission unit 2315 and the display module 100.

[0235] Therefore, in the display device according to another embodiment of the present specification, at least a portion of high-frequency sound generated by vibration of the vibration generator 300 is guided toward the side of the display module 100 by the structure 2310 of the vibration generator 300 and output toward the side and front of the display module 100, thereby further improving the acoustic characteristics of the high-frequency range due to an increase in the sound (S2) output toward the side of the display module 100 by the sound output unit 2315. Also, in the display device according to another embodiment of the present specification, the thickness of the edge portion overlapping the edge area (EA) of the display module 100 can be further reduced by reducing the thickness of the sound guide unit 2313 of the structure 2310 formed in the vibration generator 300. For example, in the display device according to an embodiment of the present specification, the thickness of the edge area (EA) of the display module 100 can be reduced by the structure 2310 including a round shape.

[0236] FIG. 14 is a diagram showing the structure shown in FIGS. 12 and 13, and FIG. 15 is a cross-sectional view taken along line GG' shown in FIG.

[0237] 13 to 15, a structure 2310 according to another embodiment of the present disclosure may include a support portion 2311, a sound guide portion 2313, a sound emitting portion 2315, and a sound emitting port 2316.

[0238] The support part 2311 and the sound guide part 2313 are substantially the same as the support part 2311 and the sound guide part 2313 described with reference to FIGS. 6 and 7, respectively, and therefore, a duplicated description thereof will be omitted.

[0239] The sound emitting portion 2315 may be configured to protrude from the tip of the sound guiding portion 2313 in the third direction (Z). As described above, the sound emitting portion 2315 may be configured to output the sound (S2) that is reflected by the first gap space (GS1) and the second gap space (GS2) and travels toward the side of the display module 100 toward the front of the display module 100.

[0240] The sound-emitting portion 2315 according to the embodiments of the present specification may protrude from the tip of the sound-guiding portion 2313 toward the rear surface of the display module 100 along the third direction (Z) parallel to the second direction (Y). For example, the sound-emitting portion 2315 may protrude from the inner surface of the cover portion 2313c of the sound-guiding portion 2313 overlapping the side surface of the display module 100. The sound-emitting portion 2315 may be configured to cover a part of the space between the rear surface of the display module 100 and the tip of the sound-guiding portion 2313. The sound-emitting portion 2315 may be spaced apart from the side surface of the display module 100.

[0241] The sound emitting portion 2315 according to the embodiment of the present specification may include a second surface (OW2) exposed to the outside of a side surface of the display module 100 and a third surface (IS) inclined from an end of the second surface (OW2) adjacent to the display module 100. The second surface (OW2) may be parallel to the third direction (Z). The second surface (OW2) of the sound emitting portion 2315 may extend from the second surface (OW2) of the cover portion 2313c along the third direction (Z). For example, the second surface (OW2) may be an outer wall. For example, the third surface (IS) may be an inner surface.

[0242] According to an embodiment of the present specification, the sound emitting unit 2315 may have a triangular cross-sectional structure with the third surface (IS) as an inclined surface. The angle (θ2) between the second surface (OW2) and the third surface (IS) of the sound emitting unit 2315 may be configured between 45 degrees and 75 degrees so that the sound (S2) traveling through the sound guide unit 2313 is smoothly output toward the front surface of the display module 100 through the sound output port 2316. For example, the angle (θ2) between the second surface (OW2) and the third surface (IS) of the sound emitting unit 2315 may be configured between 55 degrees and 65 degrees. For example, the sound emitting unit 2315 may include a protruding portion having an angle between 45 degrees and 75 degrees. The protruding portion may include, but is not limited to, a triangular protruding portion, a triangular protruding tip, a sound protruding portion, a sound emitting tip, or the like.

[0243] According to an embodiment of the present specification, the distance D1 between the second surface OW2 of the sound emitting unit 2315 and one side or lateral surface of the display module 100 based on the first direction (X) may be 1±0.5 mm so that the sound S2 traveling through the sound guiding unit 2313 can be smoothly output toward the front of the display module 100 through the sound emitting port 2316. For example, the distance D1 between the second surface OW2 of the sound emitting unit 2315 and one side or lateral surface of the panel guide 130 based on the first direction (X) may be 1±0.5 mm.

[0244] According to an embodiment of the present specification, the shortest distance between the second surface (OW2) of the sound emitting unit 2315 and the display module 100 may be ±0.5 mm based on the third direction (Z) so that the sound (S2) traveling through the sound guiding unit 2313 is smoothly output toward the front surface of the display module 100 through the sound emitting port 2316. For example, the shortest distance between the second surface (OW2) of the sound emitting unit 2315 and one side or lateral surface of the panel guide 130 may be ±0.5 mm based on the third direction (Z).

[0245] The sound emitting opening 2316 may be formed between the sound emitting unit 2315 and the display module 100 along the second direction (Y). For example, the sound emitting opening 2316 may be a space between the sound emitting unit 2315 and the panel guide 130. For example, the sound emitting opening 2316 may have the shape of a slit or slot extending long along the second direction (Y) between the sound emitting unit 2315 and the panel guide 130, but is not limited thereto.

[0246] The structure 2310 according to another embodiment of the present specification may further include a pair of protrusions 2317 protruding from the corners of both ends or both corners of the acoustic guide portion 2313 along the third direction (Z), and recesses 2318 recessed between each of the pair of protrusions 2317 and each of the first extension portion 2313a and the second extension portion 2313b of the acoustic guide portion 2313. These are the same as the configurations described in Figures 4 to 7, so repeated explanations will be omitted.

[0247] The structure 2310 according to another embodiment of the present specification may further include a sound reflection prevention member 2319 arranged on the third surfaces (inner surfaces) 2311e and 2313d of the support portion 2311 and the sound guide portion 2313, which are parallel to the first direction (X). This is the same as the configuration described in Figures 4 to 7, so a repeated description will be omitted.

[0248] Therefore, the structure 2310 according to another embodiment of the present specification can increase the amount of sound (S2) output in the lateral direction of the display module 100 or increase the output efficiency of sound (S2) by reflecting the sound (S2) traveling through the sound guide portion 2313 toward the sound emission port 2316 via the sound emission portion 2315 having an inclined surface or a protruding portion (or a triangular protruding portion).

[0249] Figure 16 is another cross-sectional view taken along line F-F' in Figure 12, in which the structure of the second support member is modified from the display device shown in Figures 12 to 15. Therefore, 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 Figures 12 to 15, and redundant description thereof will be omitted or will be described briefly.

[0250] 12 and 16, in a display device according to another embodiment of the present specification, the second support member 150 may further include at least one hole 157 overlapping with the vibration generator 300. For example, the second support member 150 may be made of a material containing the above-mentioned iron metal.

[0251] According to an embodiment of the present specification, the hole 157 may be configured in the first part 151 to overlap with the magnetic field region of the vibration generator 300. The hole 157 may be configured in the first part 151 of the second support member 150 to overlap with the bobbin 332 or the magnet member 333 of the vibration generator 2330 in order to prevent or minimize distortion of the magnetic field formed in the vibration generator 300 by the second support member 150 made of a metallic material. The hole 157 is substantially the same as the hole 157 described in FIGS. 8 and 9, and therefore a repeated description thereof will be omitted.

[0252] According to another embodiment of the present disclosure, the hole 157 may be larger than the bobbin 332 or the magnet member 333 of the vibration generator 2330. For example, the hole 157 may be smaller than the overall size of the vibration generator 2330. For example, the hole 157 may be the same as or larger than the opening 2311d disposed in the support portion 2311 of the structure 2310 shown in FIG. 14, but smaller than the support portion 2311 of the structure 2310. For example, the first portion 151 of the second support member 150 may be configured to overlap with the sound guide portion 2313 of the structure 2310. As a result, high-frequency sound reflected (or diffracted) at the second gap space GS2 between the first portion 151 of the second support member 150 made of a metal material and the sound guide portion 2313 of the structure 2310 increases, thereby improving the sound output characteristics output in the lateral direction of the display module 100.

[0253] Therefore, in the display device according to another embodiment of the present specification, at least a portion of high-frequency sound generated by vibration of the vibration generator 300 is guided by the structure 2310 of the vibration generator 300 toward the side of the display module 100 and output toward the side and front of the display module 100, thereby improving the acoustic characteristics of the high-frequency sound by the sound (S2) output toward the side of the display module 100. In addition, 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 generator 300, thereby preventing or minimizing distortion of the magnetic field of the vibration generator 300 due to the second support member 150, thereby improving the acoustic output characteristics of the vibration generator 300, and thereby improving the acoustic output characteristics due to the vibration of the vibration generator 300.

[0254] Figure 17 is another cross-sectional view taken along line F-F' in Figure 12, in which a plate is added to the display device shown in Figure 16. Therefore, in the following description, the plate will be described in detail, and the remaining components will be given the same reference numerals as in Figures 12 to 16, and redundant description thereof will be omitted or will be described briefly.

[0255] 12 and 17, a display device according to another embodiment of the present disclosure may further include a plate 700 disposed between the display module 100 and the vibration generating device 300.

[0256] The plate 700 may be disposed between the second support member 150 and the vibration generator 300. For example, the plate 700 may be disposed between each of the first and second vibration generating 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 may be made of a different material from that of the second support member 150. The plate 700 according to the embodiments of the present specification may be made of a non-ferrous metal. For example, if the plate 700 is made of a ferrous metal, distortion of the magnetic field generated in the vibration generator 300 may occur. To prevent or reduce distortion of the magnetic field of the vibration generator 300 due to the plate 700, the plate 700 may be made of a non-ferrous metal. The plate 700 is substantially the same as the plate described with reference to FIGS. 10 and 11 , and therefore, a repeated description thereof will be omitted.

[0257] The plate 700 according to the embodiment of the present specification may further include a communication hole 710.

[0258] The communication hole 710 may overlap the hole 157 disposed in the second support member 150. The communication hole 710 may communicate the first gap space (GS1) with the hole 157 disposed in the second support member 150. According to an embodiment of the present specification, in order to maintain a balance of the sound generated by the vibration generator 300, the communication hole 710 may overlap only a portion of the magnetic field region formed in the vibration generator 300. The communication hole 710 may overlap less than half of the magnetic field region formed in the vibration generator 300. For example, based on the cross-sectional length of the vibration generator 2330 along the first direction (X), the cross-sectional length of the communication hole 710 may be 40% or less of the cross-sectional length of the bobbin 332 or the magnet member 333. The communication hole 710 is substantially the same as the communication hole described in FIGS. 10 and 11 , and therefore, a repeated description thereof will be omitted.

[0259] Therefore, the display device according to another embodiment of the present specification may have the same or similar effects as the display device shown in Fig. 16. In addition, the display device according to another embodiment of the present specification may include the second support member 150 having the hole 157 overlapping with the magnetic field region of the vibration generator 300, and the plate 700 disposed between the second support member 150 and the vibration generator 300, thereby preventing or minimizing distortion of the magnetic field of the vibration generator 300 due to the second support member 150, thereby improving the acoustic output characteristics of the vibration generator 300. As a result, the acoustic output characteristics due to vibration of the vibration generator 300 may be improved. Furthermore, a display device according to another embodiment of the present specification further includes a communication hole 710 arranged 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 by the vibration generator 300. This makes it possible to maintain an acoustic balance between the front sound generated by the vibration generator 300 proceeding in the front direction of the display module 100 and the side sound proceeding in the side direction of the display module 100, thereby further improving the acoustic output characteristics of the vibration generator 300. As a result, the acoustic output characteristics due to the vibration of the vibration generator 300 can be further improved.

[0260] Fig. 18 is a graph showing the acoustic output characteristics of a display device according to an embodiment of the present specification and the acoustic output characteristics of display devices according to first and second comparative examples. In Fig. 18, the thick solid line shows the frequency-sound pressure characteristics of the display device according to the embodiment shown in Fig. 10, in which a plate without a through hole is applied, the dotted line shows the frequency-sound pressure characteristics of a display device (or the display device of the first comparative example) that includes a vibration generator arranged adjacent to the side of the second support member by less than 3 mm and parallel to the rear surface of the second support member without a structure according to the present specification, and the thin solid line shows the frequency-sound pressure characteristics of a display device (or the display device of the second comparative example) that uses a structure having an acoustic guide portion consisting only of straight portions without a nonlinear portion.

[0261] In Fig. 18, the horizontal axis represents frequency (Hz) and the vertical axis represents sound pressure level (dB). The sound pressure level in Fig. 18 was measured using an Audio Precision APX525 Audio Analyzer (FFT Analyzer) at an applied voltage of 3 Vrms, applying a sine sweep of 20 Hz to 20 kHz, and standing 0.5 m away from the display panel. The sine sweep can be any method of sweeping in a short period of time, and is not limited to this method.

[0262] 18, the display device according to the example exhibits a slightly reduced sound pressure characteristic in the 200 Hz to 20 kHz frequency band compared to the display device of the first comparative example, but the display device according to the example can have a sound pressure characteristic of about 68 dB or more in the 200 Hz to 5 kHz frequency band and a sound pressure characteristic of about 63 dB or more in the 5 kHz to 20 kHz frequency band. Furthermore, it can be seen that the display device according to the example has superior sound pressure characteristics compared to the display device of the second comparative example, for example, the sound pressure is improved in the 400 Hz to 1 kHz frequency band and the frequency band of 3 kHz or more. Therefore, the display device according to the example can output sound having a sound pressure characteristic of about 63 dB or more in the 200 Hz to 20 kHz frequency band.

[0263] Therefore, it can be seen that the display device according to the embodiments of the present specification has improved sound in the high frequency range. For example, the present specification may provide a device or a display device including a vibration generator that can output sound in the high frequency range without configuring a piezoelectric vibration device that has a strong output in the high frequency range. Therefore, the present specification may provide a device or a display device including a vibration generator that can improve sound in the low frequency range or high frequency range.

[0264] The vibration device according to the embodiments of the present specification may be applied to a display device. The display device according to the embodiments of the present specification may be applied to a mobile device, a video phone, a smart watch, a watch phone, a wearable device, a foldable device, a rollable device, a bendable device, a flexible device, a curved device, an electronic organizer, an electronic book, a portable multimedia player (PMP), a personal digital assistant (PDA), an MP3 player, a mobile medical device, a desktop PC, a laptop PC, a netbook computer, a workstation, a navigation system, a vehicle navigation system, a vehicle display device, a theater device, a theater display device, a television, a wallpaper device, a signage device, a game device, a notebook computer, a monitor, a camera, a video camera, and a home appliance. Furthermore, the vibration generating device of the present specification may be applied to an organic light-emitting lighting device or an inorganic light-emitting lighting device. When the vibration generating device is applied to a lighting device, the vibration generating device may function as a light and a speaker. When the vibration generating device of the present specification is applied to a mobile device, the vibration generating device may function as one or more of a speaker, a receiver, and a haptic, but is not limited thereto.

[0265] The display device according to this specification can be described as follows.

[0266] A display device according to an embodiment of the present specification may include a display module including a display panel configured to display an image, a structure arranged on a rear surface of the display module, and a vibration generator arranged on the structure, wherein the structure has a nonlinear portion covering an edge of the rear surface of the display module along a first direction and includes an acoustic emission port spaced apart from the rear surface of the display module.

[0267] According to some embodiments herein, the vibration generator may be positioned non-parallel to the rear surface of the display module, for example, the vibration generator may be supported on a structure non-parallel to the rear surface of the display module.

[0268] According to some embodiments of the present disclosure, the structure may include a support that supports the vibration generator and an acoustic guide that extends from the support to one side of the display module and has a nonlinear portion, the acoustic guide being disposed between the one side of the nonlinear portion and a rear surface of the display module. For example, the acoustic guide may extend from the support to a side surface of the display module along a first direction so as to cover an edge of the rear surface of the display module. For example, the acoustic outlet may be disposed between a tip of the nonlinear portion and the rear surface of the display module.

[0269] According to some embodiments of the present disclosure, the support may include an opening overlapping the vibration generator. For example, the structure may be disposed on the rear surface of the display module via a connecting member.

[0270] According to some embodiments herein, the nonlinear section may include a cross-sectional structure having a curved surface configuration.

[0271] According to some embodiments of the present specification, the structure provides a first gap space between the rear surface of the display module and the vibration generator, and a second gap space between the nonlinear section and the rear surface of the display module, and the first gap space and the second gap space can be connected to an acoustic emission port.

[0272] According to some embodiments of the present specification, at least a portion of the sound output from the vibration generator can be reflected by the nonlinear portion toward the side of the display module and output to the front of the display module through the sound outlet.

[0273] A display device according to some embodiments of the present specification includes a display module including a display panel configured to display images, a first vibration generating module arranged in a first rear region of the display module, and a second vibration generating module arranged in a second rear region of the display module, each of the first and second vibration generating modules including a vibration generator that outputs sound to the rear of the display module and a structure that supports the vibration generator, the structure having a nonlinear portion that guides sound output from the vibration generator to one side of the display module along a first direction, and including an acoustic outlet spaced from the rear of the display module.

[0274] According to some embodiments herein, the structure may be disposed on a rear surface of the display module, and the vibration generator may be disposed non-parallel to the rear surface of the display module. For example, the vibration generator may be disposed on the structure non-parallel to the rear surface of the display module.

[0275] According to some embodiments of the present disclosure, the structure may include a support that supports a vibration generator and an acoustic guide that extends from the support to one side of the display module along a first direction to cover an edge of a rear surface of the display module and has a nonlinear portion, and the acoustic outlet may be disposed between the one side of the nonlinear portion and the rear surface of the display module. For example, the acoustic guide may extend from the support to a side of the display module along the first direction to cover the edge of the rear surface of the display module. For example, the acoustic outlet may be disposed between a tip of the nonlinear portion and the rear surface of the display module.

[0276] According to some embodiments of the present disclosure, the structure may further include an acoustic emission portion protruding from one side of the nonlinear portion, and the acoustic emission opening may be disposed between the acoustic emission portion and a side surface of the display module. For example, the structure may be disposed along the thickness direction of the display module. For example, the acoustic emission portion may protrude from an end of the nonlinear portion. For example, the acoustic emission opening may be disposed between an end of the acoustic emission portion and a rear surface of the display module.

[0277] According to some embodiments herein, the acoustic emitter may include a protruding portion, for example, the acoustic emitter may include a triangular protruding tip.

[0278] According to some embodiments of the present specification, the sound emitting portion may protrude from one side of the sound guiding portion along the thickness direction of the display module and may include a first surface exposed to the outside of one side of the display module, and a second surface inclined from one side of the first surface adjacent to the display module.

[0279] According to some embodiments herein, in the sound emitting portion, the angle between the first surface and the second surface may be between 45 degrees and 75 degrees.

[0280] According to some embodiments of the present specification, the distance between the first surface of the sound emitting portion and one side of the display module based on the first direction may be 1±0.5 mm or less, or the shortest distance between the first surface of the sound emitting portion and the display module based on the thickness direction of the display module may be ±0.5 mm.

[0281] According to some embodiments of the present disclosure, the distance between the rear surface of the display module and the vibration generator may increase along the first direction toward one side of the display module adjacent to the vibration generator. For example, the distance between the rear surface of the display module and the vibration generator may increase along the first direction toward a side of the display module.

[0282] According to some embodiments herein, a distance between a rear surface of the display module and the nonlinear portion of the structure may decrease toward one side of the display module adjacent to the structure along the first direction. For example, a distance between the rear surface of the display module and the nonlinear portion of the structure may decrease toward a side of the display module along the first direction.

[0283] According to some embodiments herein, the nonlinear portion of the structure may include a plurality of curved portions having different radii of curvature.

[0284] According to some embodiments herein, the nonlinear portion of the structure may include a plurality of curved portions, and the radius of curvature of each of the plurality of curved portions may be smaller adjacent to one side of the display module adjacent to the structure. For example, the radius of curvature of each of the plurality of curved portions may be smaller adjacent to a side of the display module.

[0285] According to some embodiments of the present specification, the length of the acoustic guide portion, relative to the first direction, may be longer than half the length of the vibration generator and shorter than the entire length of the vibration generator.

[0286] According to some embodiments of the present specification, the acoustic guide portion further includes a linear portion between the support portion and the nonlinear portion, and the length of the nonlinear portion and the length of the linear portion can be the same or different based on the first direction.

[0287] According to some embodiments of the present specification, the support may include a first support arranged along a first direction and supporting a first side of the vibration generator, a second support arranged parallel to the first support and supporting a second side of the vibration generator, a third support arranged between one side of the first support and one side of the second support and supporting a third side of the vibration generator, and an opening surrounded by the first to third support parts. For example, the third support part may be arranged along a second direction intersecting the first direction. For example, the opening may overlap the vibration generator.

[0288] According to some embodiments herein, each of the first support and the second support may include a first surface adjacent to and / or parallel to the rear surface of the display module and a second surface non-parallel to the rear surface of the display module, for example, the second surface may support a vibration generator.

[0289] According to some embodiments of the present specification, in each of the first support part and the second support part, the distance between the first surface and the second surface may increase along the first direction from the third support part toward the acoustic guide part.

[0290] According to some embodiments of the present disclosure, the acoustic guide may include a first extension extending from the first support to one side of the display module along the first direction, a second extension extending from the second support to one side of the display module, and a cover covering a space between the first extension and the second extension. For example, the second extension may be disposed parallel to the first extension. For example, the cover may include a nonlinear portion.

[0291] According to some embodiments of the present specification, the structure may further include pads (or sound-absorbing members) disposed on the third surfaces (or inner surfaces) of the first and second support portions and the third surfaces (or inner surfaces) of the first and second extension portions, respectively.

[0292] According to some embodiments of the present disclosure, the display module may further include a support member disposed on a rear surface of the display panel, the structure may be disposed on the rear surface of the support member, and the support member may include a first hole. For example, the first hole of the support member may overlap with the vibration generator.

[0293] A display device according to some embodiments of the present disclosure may further include a plate disposed between the support member and the structure and configured to cover at least a portion of the first hole of the support member. For example, the plate may support the structure.

[0294] According to some embodiments herein, the plate may be made of a non-ferrous metal.

[0295] According to some embodiments of the present disclosure, the plate may further include a second hole overlapping the first hole of the support member. For example, the second hole may have a different shape from the first hole or may be smaller than the first hole.

[0296] According to some embodiments herein, the plate can be constructed of a different material than the support member.

[0297] According to some embodiments herein, the size of the second hole may be smaller than the size of the first hole.

[0298] According to some embodiments of the present specification, the vibration generator may include a module frame disposed on a structure, a bobbin disposed on the module frame, a magnet disposed inside or outside the bobbin, a coil wound on the bobbin, and a damper connected between the module frame and the bobbin.

[0299] According to some embodiments of the present disclosure, the display module may further include a support member disposed on a rear surface of the display panel, and the structure may be disposed on the rear surface of the support member. The support member may include a first hole. The first hole may overlap with the bobbin.

[0300] According to some embodiments of the present disclosure, the size of the first hole can be larger than the size of the bobbin. For example, the vibration generator can overlap the hole of the support member.

[0301] A display device according to some embodiments of the present disclosure may further include a plate disposed between a rear surface of the display module and the structure and configured to cover at least a portion of the first hole. For example, the display module may further include a support member disposed on a rear surface of the display panel to support the plate, and the support member may include the first hole overlapping with the vibration generator.

[0302] According to some embodiments herein, the plate can include a second hole overlapping a portion of the bobbin. For example, the second hole in the plate can overlap the first hole in the support member and a portion of the bobbin.

[0303] According to some embodiments of the present disclosure, the length of the second hole may be 40% or less of the length of the bobbin in the first direction. For example, the cross-sectional length of the second hole may be 40% or less of the cross-sectional length of the bobbin in the first direction.

[0304] The present specification described above is not limited to the above-mentioned examples and the attached drawings, and it will be apparent to those skilled in the art that multiple substitutions, modifications, and changes are possible within the scope of the technical idea of ​​the present specification. Therefore, the scope of the present specification is defined by the claims set forth below, and all modifications and variations derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present specification. [Explanation of symbols]

[0305] 100: Display module 110: Display panel 120: Backlight module 130: Panel guide 140: First connecting member 150: Second support member 151: Part 1 153:Second part 157: Hall 300: Vibration generator 300-1: First vibration generation module 300-2: Second vibration generation module 2310: Structure 2311: Support part 2313: Acoustic guide section 2315: Sound emission part 2316: Sound emission port 2330: Vibration generator 332: Bobbin 333: Magnet parts 400: Second connecting member 500: First support member 510: Part 1 530:Second part 550: 3rd part 600: Third connecting member 700: Plate 710: Connecting hole

Claims

1. a display module configured to display video; a structure on the back surface of the display module; a vibration generator in the structure; The structure is a support including a first surface parallel to the rear surface of the display module and a second surface opposite to the first surface and non-parallel to the rear surface of the display module, the second surface supporting the vibration generator; a sound guide portion extending from the support portion to one side of the display module and configured to cover an edge of the rear surface of the display module along a first direction; an acoustic emission port spaced from the rear surface of the display module; the structure provides a first gap space between the rear surface of the display module and the vibration generator, and a second gap space between the acoustic guide and the rear surface of the display module; A display device, wherein the second gap space is in communication with the first gap space, and the acoustic emission port is in communication with the second gap space.

2. The display device according to claim 1 , wherein the support includes an opening overlapping the vibration generator.

3. The display device according to claim 1 , wherein the acoustic guide is disposed non-parallel to the rear surface of the display module.

4. The display device according to claim 3 , wherein the acoustic guide portion includes a non-linear portion configured to be non-parallel to the rear surface of the display module.

5. The display device according to claim 4 , wherein the acoustic outlet is between one side of the nonlinear portion and the rear surface of the display module.

6. The display device according to claim 1 , wherein the acoustic guide portion includes a cross-sectional structure having a curved surface shape.

7. The display device according to claim 1 , wherein at least a portion of the sound output from the vibration generator is reflected by the sound guide toward the side of the display module and output toward the front of the display module through the sound outlet.

8. The display device according to claim 1 , wherein at least a portion of the sound output from the vibration generator is reflected by the sound guide toward a front direction of the display module.

9. a display module configured to display video; a first vibration generating module located in a first region on the back surface of the display module; a second vibration generating module located in a second region of the rear surface of the display module; Each of the first and second vibration generating modules comprises: a vibration generator configured to output sound to the back surface of the display module; a structure configured to support the vibration generator; The structure is a support portion that supports the vibration generator so as to be non-parallel to the rear surface of the display module; a sound guide portion extending from the support portion to one side of the display module and configured to cover an edge of the rear surface of the display module along a first direction; an acoustic emission port spaced from the rear surface of the display module; the structure provides a first gap space between the rear surface of the display module and the vibration generator, and a second gap space between the acoustic guide and the rear surface of the display module; A display device, wherein the second gap space is in communication with the first gap space, and the acoustic emission port is in communication with the second gap space.

10. The display device according to claim 9 , wherein the support includes an opening overlapping the vibration generator.

11. The display device according to claim 9 , wherein the acoustic guide is disposed non-parallel to the rear surface of the display module.

12. The display device of claim 11 , wherein the acoustic guide includes a non-linear portion configured to be non-parallel to the rear surface of the display module.

13. The display device of claim 12 , wherein the acoustic outlet is between one side of the nonlinear portion and the rear surface of the display module.

14. The structure further includes a sound emission part protruding from one side of the sound guide part, The display device according to any one of claims 1 to 13, wherein the sound emission port is located between the sound emission portion and a side surface of the display module.

15. The display device of claim 14 , wherein the acoustic emission portion includes a protruding portion.

16. The display device of any one of claims 1 to 13, wherein a distance between the rear surface of the display module and the vibration generator increases along the first direction toward a side of the display module adjacent to the vibration generator.

17. The display device of any one of claims 1 to 13, wherein the distance between the rear surface of the display module and the acoustic guide portion of the structure decreases along the first direction toward one side of the display module adjacent to the structure.

18. The display device according to any one of claims 1 to 13, wherein the acoustic guide portion of the structure includes a plurality of curved surface portions having different radii of curvature.

19. the acoustic guide portion of the structure includes a plurality of curved surface portions; The display device of claim 1 , wherein the radius of curvature of each of the curved portions decreases toward one side of the display module adjacent to the structure.

20. A display device according to any one of claims 1 to 13, wherein the length of the acoustic guide section is longer than half the length of the vibration generator and shorter than the entire length of the vibration generator, based on the first direction.

21. 14. The display device according to claim 4, wherein the length of the acoustic guide portion is longer than half the length of the vibration generator and shorter than the entire length of the vibration generator, based on the first direction.

22. the acoustic guide portion further includes a linear portion between the support portion and the nonlinear portion; The display device of claim 21 , wherein a length of the nonlinear portion and a length of the linear portion in the first direction are the same or different.

23. The support portion is a first support portion disposed along the first direction and configured to support a first side of the vibration generator; a second support portion disposed parallel to the first support portion and configured to support a second side of the vibration generator; a third support portion disposed 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; 14. The display device according to claim 1, further comprising an opening surrounded by the first to third support portions.

24. Each of the first support portion and the second support portion is a first surface adjacent and / or parallel to the back surface of the display module; 24. The display device of claim 23, including a second surface non-parallel to the rear surface of the display module.

25. 25. The display device of claim 24, wherein in each of the first support and the second support, a distance between the first surface and the second surface increases from the third support toward the acoustic guide along the first direction.

26. The acoustic guidance unit a first extension extending from the first support to one side of the display module along the first direction; a second extension portion extending from the second support portion to one side of the display module; 24. The display device according to claim 23, further comprising a cover portion that covers a space between the first extension portion and the second extension portion.

27. 27. The display device according to claim 26, wherein the structure further includes sound absorbing members disposed on inner surfaces of the first and second support portions and on inner surfaces of the first and second extension portions.

28. The display module includes: a display panel configured to display the video; further comprising a support member on the rear surface of the display panel; the structure is disposed on the rear surface of the support member; the support member includes a first hole; The display device of claim 1, wherein the first hole overlaps the vibration generator.

29. 30. The display device of claim 28, further comprising a plate between the support member and the structure, the plate being configured to cover at least a portion of the first hole in the support member.

30. 30. The display device of claim 29, wherein the plate is made of a non-ferrous metal.

31. 30. The display device of claim 29, wherein the plate further comprises a second hole overlapping the first hole of the support member.

32. The display device of claim 31 , wherein the second holes are smaller in size than the first holes.

33. The vibration generator includes: a modular frame in the structure; a bobbin on the module frame; a magnet inside or outside the bobbin; a coil wound on the bobbin; The display device according to any one of claims 1 to 13, further comprising a damper coupled between the module frame and the bobbin.

34. The display module includes: a display panel configured to display the video; further comprising a support member on the rear surface of the display panel; the structure is disposed on the rear surface of the support member; the support member includes a first hole; The display device of claim 33, wherein the first hole overlaps the bobbin.

35. The display device of claim 34, wherein the size of the first hole is larger than the size of the bobbin.

36. 35. The display device of claim 34, further comprising a plate between the back surface of the display module and the structure.

37. 37. The display device of claim 36, wherein the plate includes a second hole overlapping a portion of the bobbin and the first hole.

38. The display device of claim 37, wherein the length of the second hole in the first direction is equal to or less than 40% of the length of the bobbin.

Images