Sound generating modules and devices

Abstract

A sound generating module and device. A sound generating module, comprising: a vibration member; a sound generator, the sound generator being located on the vibration member; a vibration transfer member, the vibration transfer member being located on the sound generator; and at least one vibration adjustment member, the at least one vibration adjustment member being located below the vibration member, wherein the vibration transfer member is located at the center of the sound generator, and each of the at least one first vibration adjustment member is located at both side edges of the sound generator, and wherein the vibration member is located between the at least one first vibration adjustment member and the sound generator.

Description

[0001] This application is a divisional application of the invention patent application with application number 201811390716.1 (filing date is November 21, 2018, and the invention name is "display device"). Technical Field

[0002] The present disclosure relates to a display device, and more particularly, to a display device including a sound generating module. Background Art

[0003] As the information-oriented society develops, various demands on the display field that expresses information based on electrical information signals are increasing. Therefore, various display devices that are thin, light, and have low power consumption are being studied.

[0004] For example, the display device includes a liquid crystal display (LCD) device, a field emission display (FED) device, an organic light emitting display device, and the like.

[0005] In the above-mentioned display device, the LCD device may include: an array substrate including a thin film transistor (TFT); an upper substrate including a color filter and / or a black matrix; and a liquid crystal layer located between the array substrate and the upper substrate. The orientation state of the liquid crystal layer is controlled based on an electric field applied between two electrodes in a pixel area, thereby adjusting the transmittance based on the orientation state of the liquid crystal layer, thereby displaying an image.

[0006] Compared with other display devices, organic light emitting display devices, which are self-luminous display devices, may have advantages such as fast response speed, high light emission efficiency, high brightness, and wide viewing angle. Therefore, organic light emitting display devices have attracted much attention.

[0007] The display device may include a display panel image, and may generally have to provide an additional speaker for providing sound. If a speaker is provided in the display device, the sound generated in the speaker proceeds toward the lower portion or rear portion of the display panel rather than toward the front portion of the display panel. Therefore, the sound does not proceed toward the front portion of the display panel, for example, toward a user viewing an image displayed on the display panel, which may disrupt the user's immersive experience.

[0008] If the speaker is included in a set of equipment such as a television, the speaker occupies a space that may impose restrictions on the design and spatial arrangement of the set of equipment. In addition, if the speaker is applied to a display device, the display device may become thick. Summary of the invention

[0009] Accordingly, embodiments of the present disclosure are directed to a display device that substantially obviates one or more problems due to limitations and disadvantages of the related art.

[0010] The inventor has recognized the above-mentioned problem and has conducted several experiments to develop a sound generator that can allow the sound to proceed toward the front surface of the display panel when the user views the image on the front surface of the display panel, can make the display device smaller than the device of the related art, and can improve the sound quality. The inventor has invented a new display device including a sound generator through several experiments, which can generate sound that allows the sound to proceed toward the front of the display panel, can improve the sound quality, and can reduce the size of the display device.

[0011] Additional features and aspects will be described in the following description, and some will become clear from the description, or can be learned by practicing the inventive concepts provided herein. Other advantages and aspects of the inventive concepts can be realized and obtained by the structures specifically pointed out in the specification and its claims and the drawings or derived therefrom.

[0012] To achieve these and other aspects, in accordance with the inventive principles embodied and broadly described herein, a display device is provided, comprising: a display panel configured to display an image, a supporting member located on a rear surface of the display panel, a sound generator disposed between the display panel and the supporting member, and a vibration member located between the sound generator and the supporting member, wherein a diameter of the vibration member is greater than or equal to a size of the sound generator.

[0013] On the other hand, a display device is provided, comprising: a display panel configured to display an image, a supporting member located on a rear surface of the display panel, a sound generator located between the display panel and the supporting member, a vibration member located on a rear surface of the sound generator, and at least one first vibration adjusting member located between the vibration member and the supporting member.

[0014] On the other hand, a display device is provided, comprising: a display panel configured to display an image; and a sound generating module, comprising: a supporting member located on a rear surface of the display panel, and a sound generator, a vibration member located between the sound generator and the supporting member, and at least one first vibration adjusting member located between the vibration member and the supporting member.

[0015] Other systems, methods, features, and advantages will be or will become apparent to one skilled in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features, and advantages be included within this specification, be within the scope of the present disclosure, and be protected by the appended claims. Nothing in this section should be construed as a limitation on those claims. Other aspects and advantages are discussed below in conjunction with embodiments of the present disclosure.

[0016] It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the invention as claimed.

[0017] Note 1. A display device, comprising:

[0018] a display panel configured to display an image;

[0019] a supporting member located on a rear surface of the display panel and configured to support the rear surface of the display panel;

[0020] a sound generator located between the display panel and the support member; and

[0021] A vibration member is located between the sound generator and the supporting member, and a diameter of the vibration member is greater than or equal to a diameter of the sound generator.

[0022] Note 2. The display device according to Note 1, further comprising:

[0023] a vibration transmitting member located between the display panel and the sound generator; and

[0024] At least one first vibration adjusting member is located between the vibration member and the support member.

[0025] Supplementary note 3. The display device according to Supplementary note 2, wherein the vibration transmitting member and the at least one first vibration adjusting member include different materials.

[0026] Supplement 4. The display device according to Supplement 2, wherein the vibration transmitting member is located at the center of the sound generator, and each vibration adjusting member of the at least one first vibration adjusting member is located at both side edges of the sound generator.

[0027] Note 5. A display device according to Note 2, wherein the vibration transmitting member is configured to transmit the sound of the high-pitched vocal cords of the sound generator to the display panel, and the at least one first vibration adjusting member is configured to adjust the sound of the low-pitched vocal cords of the sound generator.

[0028] Supplement 6. The display device according to Supplement 1, further comprising:

[0029] at least one first vibration adjusting member located between the vibration member and the support member; and

[0030] At least one second vibration adjusting member is located between the display panel and the vibration member.

[0031] Supplementary note 7. The display device according to Supplementary note 6, wherein the at least one first vibration adjusting member and the at least one second vibration adjusting member include the same material.

[0032] Supplement 8. The display device according to Supplement 6, wherein each of the at least one first vibration adjusting member and the at least one second vibration adjusting member is located at both side edges of the sound generator, respectively.

[0033] Supplementary note 9. The display device according to Supplementary note 6, wherein the at least one first vibration adjusting member and the at least one second vibration adjusting member are configured to adjust the sound of a low-pitched vocal band of the sound generator.

[0034] Supplementary note 10. The display device according to Supplementary note 1, wherein the sound generator includes a piezoelectric sound generator.

[0035] Note 11. A display device, comprising:

[0036] a display panel configured to display an image;

[0037] a supporting member located on a rear surface of the display panel and configured to support the rear surface of the display panel;

[0038] a sound generator, located between the display panel and the support member;

[0039] a vibration member located on a rear surface of the sound generator; and

[0040] At least one first vibration adjusting member is located between the vibration member and the support member.

[0041] Supplementary note 12. The display device according to Supplementary note 11, wherein a diameter of the vibration member is greater than or equal to a diameter of the sound generator.

[0042] Supplement 13. The display device according to Supplement 11, wherein the at least one first vibration adjusting member is configured to adjust a low-pitched vocal band of the sound generator.

[0043] Supplement 14. The display device according to Supplement 11, further comprising a vibration transmitting member located between the display panel and the sound generator.

[0044] Supplementary note 15. The display device according to Supplementary note 14, wherein the vibration transmitting member is located at the center of the sound generator, and the at least one first vibration adjusting member is located at both side edges of the sound generator.

[0045] Supplement 16. The display device according to Supplement 14, wherein:

[0046] The vibration transmitting member is configured to transmit the high pitched vocal cords of the sound generator, and

[0047] The at least one first vibration modulating member is configured to modulate a low pitch vocal range of the sound generator.

[0048] Supplementary note 17. The display device according to Supplementary note 14, wherein the vibration transmitting member and the at least one first vibration adjusting member include different materials.

[0049] Supplementary note 18. The display device according to Supplementary note 11, further comprising at least one second vibration adjustment member located between the display panel and the vibration member.

[0050] Supplementary note 19. The display device according to Supplementary note 18, wherein each of the at least one first vibration adjusting member and the at least one second vibration adjusting member is located at both side edges of the sound generator, respectively.

[0051] Supplementary note 20. The display device according to Supplementary note 18, wherein the at least one first vibration adjusting member and the at least one second vibration adjusting member include the same material.

[0052] Supplementary note 21. The display device according to Supplementary note 18, wherein the at least one first vibration adjusting member and the at least one second vibration adjusting member are configured to adjust a low-pitched vocal range of the sound generator.

[0053] Note 22. A display device, comprising:

[0054] A display panel configured to display an image; and

[0055] A sound generation module, comprising:

[0056] a supporting member located on a rear surface of the display panel and configured to support the rear surface of the display panel;

[0057] a sound generator, located between the display panel and the support member;

[0058] a vibration member located between the sound generator and the support member; and

[0059] At least one first vibration adjusting member is located between the vibration member and the support member.

[0060] Supplement 23. The display device according to Supplement 22, wherein the sound generator further comprises:

[0061] a first sound generating module including a vibration transmitting member located between the display panel and the sound generator; and

[0062] The second sound generating module includes at least one second vibration adjusting member located between the display panel and the vibration member.

[0063] Note 24. The display device according to Note 23, wherein:

[0064] The rear surface of the display panel includes a first area, a second area, and a third area, the first area being a left area of ​​the display panel, the second area being a right area of ​​the display panel, and the third area being a central area of ​​the display panel; and

[0065] One of the first sound generating module and the second sound generating module is located in each of the first area and the second area.

[0066] Note 25. The display device according to Note 24, further comprising:

[0067] a first spacer located at an edge of the rear surface of the display panel; and

[0068] A second partition is located between the first area and the second area.

[0069] Note 26. The display device according to Note 24, further comprising:

[0070] a first spacer located at an edge of the rear surface of the display panel;

[0071] a second partition located between the first region and the second region; and

[0072] At least one bent portion is located on at least one side of the first partition and extends toward the first sound generating module or the second sound generating module.

[0073] Note 27. The display device according to Note 24, further comprising:

[0074] a first spacer located at an edge of the rear surface of the display panel;

[0075] a second partition located between the first region and the second region;

[0076] at least one bent portion, the at least one bent portion being located on a first side of the first partition and extending toward the first sound generating module or the second sound generating module; and

[0077] At least one pad portion is located on a second side of the first separator that is perpendicular to the first side, or on the second side of the first separator and at least one side of the second separator.

[0078] Note 28. The display device according to Note 24, further comprising:

[0079] a first spacer located at an edge of the rear surface of the display panel;

[0080] a second partition located between the first region and the second region; and

[0081] At least one pad portion is located on a second side of the first separator that is perpendicular to the first side, or on the second side of the first separator and at least one side of the second separator.

[0082] Note 29. The display device according to Note 23, wherein:

[0083] The rear surface of the display panel includes a first area, a second area and a third area, the first area is a left area of ​​the display panel, the second area is a right area of ​​the display panel, and the third area is a central area of ​​the display panel;

[0084] The first sound generating module is located in each of the first area and the second area, and the second sound generating module is located in the third area; or

[0085] The first sound generating module is located in each of the first area and the second area.

[0086] Note 30. The display device according to Note 23, wherein:

[0087] The rear surface of the display panel includes a first area, a second area and a third area, the first area is a left area of ​​the display panel, the second area is a right area of ​​the display panel, and the third area is a central area of ​​the display panel;

[0088] The second sound generating module is located in each of the first area and the second area, and the first sound generating module is located in the third area, or

[0089] The second sound generating module is located in each of the first area and the second area.

[0090] Note 31. The display device according to Note 29 or 30, further comprising:

[0091] a first spacer located at an edge of the rear surface of the display panel;

[0092] a second partition located between the first region and the third region; and

[0093] A third partition is located between the second area and the third area.

[0094] Note 32. The display device according to Note 29 or 30, further comprising:

[0095] a first spacer located at an edge of the rear surface of the display panel;

[0096] a second partition located between the first region and the third region;

[0097] a third partition located between the second region and the third region; and

[0098] At least one bent portion is located on at least one side of the first partition and extends toward the first sound generating module or the second sound generating module.

[0099] Note 33. The display device according to Note 29 or 30, further comprising:

[0100] a first spacer located at an edge of the rear surface of the display panel;

[0101] a second partition located between the first region and the third region;

[0102] a third partition, located between the second region and the third region;

[0103] at least one bent portion, the at least one bent portion being located on a first side of the first partition and extending toward the first sound generating module or the second sound generating module; and

[0104] At least one pad portion is located on a second side of the first separator that is perpendicular to the first side, or on the second side of the first separator and at least one side of the second separator and the third separator.

[0105] Supplementary note 34. The display device according to Supplementary note 33, further comprising at least one member, the at least one member being on at least one side of the second partition and the third partition and in the third region.

[0106] Note 35. The display device according to Note 29 or 30, further comprising:

[0107] a first spacer located at an edge of the rear surface of the display panel;

[0108] a second partition located between the first region and the third region;

[0109] a third partition located between the second region and the third region; and

[0110] At least one pad portion is located on a second side perpendicular to the first side of the first separator, or on the second side of the first separator and at least one side of the second separator and the third separator.

[0111] Supplementary note 36. The display device according to Supplementary note 35, further comprising at least one member, the at least one member being on at least one side of the second partition and the third partition and in the third region. BRIEF DESCRIPTION OF THE DRAWINGS

[0112] The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain various principles of the invention.

[0113] Figure 1 A display device according to an exemplary embodiment of the present disclosure is shown.

[0114] Figure 2 is along Figure 1 : is a cross-sectional view taken along line II′ in FIG. 1 and illustrates a display device according to a first exemplary embodiment of the present disclosure.

[0115] Figure 3A and Figure 3B A sound generating method of a sound generator according to an exemplary embodiment of the present disclosure is illustrated.

[0116] Figure 4 A display device according to a second exemplary embodiment of the present disclosure is shown.

[0117] Figure 5 Sound output characteristics according to an exemplary embodiment of the present disclosure are shown.

[0118] Figure 6 A display device according to a third exemplary embodiment of the present disclosure is shown.

[0119] Figure 7 Sound output characteristics according to an exemplary embodiment of the present disclosure are shown.

[0120] FIG. 8A to FIG. 8C An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0121] 9A to 9C An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0122] FIG. 10A to FIG. 10C An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0123] FIG. 11A to FIG. 11C An example of a sound generating module and a partition in a display device according to an embodiment of the present disclosure is shown.

[0124] FIG. 12A to FIG. 12J An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0125] FIG. 13A to FIG. 13J An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0126] FIG. 14A to FIG. 14J An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0127] FIG. 15A to FIG. 15J An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown. DETAILED DESCRIPTION

[0128] Embodiments of the present disclosure will now be described in detail, and examples of embodiments of the present disclosure are illustrated in the accompanying drawings. In the following description, when it is determined that a detailed description of a known function or configuration related to this document would unnecessarily obscure the spirit of the inventive concept, its detailed description will be omitted. The process of processing steps and / or operations described is exemplary; however, the order of these steps and / or operations is not limited to the order proposed herein, but can be changed as known to those skilled in the art, unless these steps and / or operations must occur in a specific order. Throughout the text, similar reference numerals refer to similar parts. The names of the components used in the following explanations are selected only for the convenience of writing the specification, and therefore may be different from the names of the components used in the actual product.

[0129] The advantages and features of the present disclosure and their implementation methods will be described by the exemplary embodiments described below with reference to the accompanying drawings. However, the present disclosure can be implemented in different forms and should not be interpreted as being limited to the exemplary embodiments described herein. On the contrary, these exemplary embodiments are provided so that the present disclosure can be fully comprehensive and complete to help those skilled in the art fully understand the scope of the present disclosure. In addition, the present disclosure is limited only by the scope of the claims.

[0130] The shapes, sizes, ratios, angles and quantities disclosed in the drawings used to describe the embodiments of the present disclosure are merely examples. Therefore, the present disclosure is not limited to the illustrated details. In the following description, when it is determined that the detailed description of the relevant known functions or structures will inevitably obscure the key points of the present disclosure, the detailed description of these known functions or structures will be omitted. When "including" and "having" described in the present disclosure are used, another part may be added unless more restrictive terms such as "only" are used. Unless otherwise specified to the contrary, terms in the singular may include plural forms.

[0131] When explaining a component, the component is interpreted as including an error or tolerance range, even if there is no explicit description of such an error or tolerance range. When describing a positional relationship, for example, when the positional relationship between components is described as "upper," "above," "lower," or "next," one or more other parts may be located between the two parts unless more restrictive terms such as "only" or "directly" are used. When describing a temporal relationship, for example, when the temporal sequence is described as, for example, "after," "subsequently," "next," or "before," discontinuities may be included unless more restrictive terms such as "just," "immediately," or "directly" are used.

[0132] It should be understood that although the terms "first", "second", etc. may be used herein to describe various components, these components should not be limited by these terms, and these terms are not used to define a specific order. These terms may only be used to distinguish one component from another component. For example, a first component can be referred to as a second component, and similarly, a second component can be referred to as a first component without departing from the scope of the present disclosure.

[0133] When describing the components of the present invention, the terms “first”, “second”, “A”, “B”, “(a)” and “(b)” may be used. These terms are only used to distinguish one component from another, and the nature, number, order or sequence of the corresponding components should not be limited by these terms. In addition, when a component or layer is described as being “connected”, “coupled” or “bonded” to another component or layer, the component or layer can not only be directly connected or bonded to the other component or layer, but also, unless otherwise specified, may be indirectly connected or bonded to the other component or layer by one or more intermediate components or layers that are “disposed” or “provided” between the components or layers.

[0134] The term "at least one" should be understood to include any and all combinations of one or more of the corresponding listed items. For example, the meaning of "at least one of the first item, the second item, and the third item" means the combination of all items proposed from two or more of the first item, the second item, and the third item, as well as the first item, the second item, or the third item.

[0135] In the description of the embodiments, when a structure is described as being "above or above" or "below or below" another structure, the description should be interpreted as including a case where these structures are in contact with each other and a case where a third structure is sandwiched therebetween. The sizes and thicknesses of the components shown in the drawings are given only for ease of description, and the embodiments of the present disclosure are not limited thereto.

[0136] As those skilled in the art can fully understand, the features of the various embodiments of the present disclosure can be combined or combined with each other in part or in whole, and can interoperate and technically drive each other in various ways. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a dependent relationship.

[0137] In the present disclosure, examples of display devices are used to cover display devices including display panels and drive units for driving display panels, such as liquid crystal modules (LCMs), organic light emitting display modules (OLEDs), and OLED lighting devices. "Display devices" are also used to further cover complete sets of electronic devices or complete sets of equipment (or complete sets of devices) as final products that may include LCMs or OLED modules, such as notebook computers or laptop computers, televisions, computer monitors, equipment devices (e.g., display devices in automotive equipment or other types of vehicle devices), or mobile electronic devices as complete products or final products (e.g., smart phones or electronic tablets, etc.). Therefore, in the present disclosure, "display devices" are used for display devices themselves, such as LCMs, or OLED modules and OLED lighting devices, as well as complete sets of equipment as final consumer products or application products including LCMs and OLED modules.

[0138] In some exemplary embodiments, an LCM or OLED module and an OLED lighting device including a display panel and a driving unit thereof may be referred to as a "display device", and an electronic device as a final product including the LCM or OLED module and the OLED lighting device may be referred to as a "set". For example, a display device may include a display panel such as an LCD or an OLED and a source printed circuit board (PCB) as a controller driving the same, and the set may further include a set PCB as a controller group electrically connected to the source PCB and controlling the overall operation of the set or the set.

[0139] The display panel applied to the embodiment can use any type of display panel, such as a liquid crystal display panel, an organic light emitting diode (OLED) display panel, and an electroluminescent display panel, but is not limited to these specific types. For example, the display panel can be any panel that can be vibrated by the sound generating device according to the embodiment of the present disclosure to output sound. The shape or size of the display panel applied to the display device according to the embodiment of the present disclosure is not limited.

[0140] For example, if the display panel is a liquid crystal display panel, the display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels respectively arranged in a plurality of pixel regions where the gate lines and the data lines intersect. Furthermore, the display panel may include: an array substrate including a thin film transistor (TFT), which is a switch component for adjusting the transmittance of each of the plurality of pixels; an upper substrate including a color filter and / or a black matrix; and a liquid crystal layer located between the array substrate and the upper substrate.

[0141] In addition, if the display panel is an organic light-emitting display panel, the display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels respectively arranged in a plurality of pixel regions of the gate lines and the data lines. The display panel may include: an array substrate including a TFT, which is a component for selectively applying a voltage to each pixel; an organic light-emitting device layer on the array substrate; and an encapsulation substrate located on the array substrate to cover the organic light-emitting device layer. The encapsulation substrate may protect the TFT and the organic light-emitting device layer from external influences, and may prevent moisture or oxygen from penetrating into the organic light-emitting device layer. The layer arranged on the array substrate may include an inorganic light-emitting layer (e.g., a nano-sized material layer or quantum dots, etc.). The display panel may also include a backing attached to the rear surface of the display panel, such as a metal plate, but the embodiment is not limited to the metal plate and may include other structures.

[0142] In the present disclosure, a display panel including a sound generator may be implemented as a user interface module in a vehicle, such as a central control panel area in a car. For example, such a display panel may be constructed between two front seats so that the sound generated by the vibration of the display panel is propagated toward the interior of the vehicle. In this way, the audio experience within the vehicle can be improved compared to having a speaker on the inside or edge of the vehicle.

[0143] Hereinafter, a display device according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings.

[0144] Figure 1 shows a display device according to an exemplary embodiment of the present disclosure, Figure 2 is along Figure 1 : is a cross-sectional view taken along line II′ in FIG. 1 and illustrates a display device according to a first exemplary embodiment of the present disclosure.

[0145] Reference Figure 1 and Figure 2 In the example of FIG. 1 , the display device 1000 may include a display panel 100, and a support member 400 located on the rear surface of the display panel 100. The sound generator 300 may be located on the rear surface of the display panel 100. The display panel 100 may be a light-emitting display panel or a flexible light-emitting display panel, and will be described below.

[0146] A display panel according to an exemplary embodiment of the present disclosure may include: a pixel array substrate including a pixel array having a plurality of pixels; an encapsulation layer for encapsulating the pixel array; and a polarizing film attached to the upper portion of the encapsulation layer. Each of the plurality of pixels may be provided in a plurality of pixel regions that may be defined by a plurality of pixel drive lines. Each of the plurality of pixels may include: a pixel circuit including at least two transistors (TFTs) and at least one capacitor, and a light-emitting device layer that can emit light using a current provided from the pixel circuit. As an example, the light-emitting device layer may include an organic light-emitting layer or a quantum dot light-emitting layer. As another example, the light-emitting device layer may include a micro light-emitting diode (micro-LED).

[0147] The encapsulation layer can protect the thin film transistor and the light emitting device layer from external influences, and can reduce or prevent moisture or oxygen from penetrating into the light emitting device layer. The polarizing film can be attached to the upper portion of the encapsulation layer using a film attachment member. The polarizing film can circularly polarize external light reflected by the TFT and / or pixel drive line provided on the pixel array substrate, thereby improving the visibility and contrast of the display panel 100.

[0148] The display panel 100 may further include a barrier layer and a touch electrode layer sandwiched between the encapsulation layer and the polarizing film. The display panel 100 may further include a color filter layer disposed on the upper portion of the encapsulation layer. Alternatively, the encapsulation layer may be replaced or supplemented by an encapsulation substrate attached to the pixel array substrate by a filler surrounding the pixel array. When the filler is a transparent filler, the encapsulation substrate may be a transparent encapsulation substrate. The drive circuit may be connected to a pad portion disposed on the pixel array substrate of the display panel 100, and may provide a drive signal and a data signal to the pixel drive line so that each pixel displays an image.

[0149] Alternatively, the display panel 100 may be a liquid crystal display panel. This will be described below as an example.

[0150] The display panel 100 may include a first substrate, a second substrate, and a liquid crystal layer. The first substrate may include a pixel electrode or a common electrode for controlling the orientation of liquid crystals of the liquid crystal layer, and may include a TFT connected to the pixel electrode. The second substrate may include a color filter layer to provide a display showing a color image.

[0151] The display panel 100 can drive the liquid crystal layer using an electric field generated according to data and a common voltage applied to each pixel to control the transmittance of the liquid crystal layer to display an image. The liquid crystal layer can be driven in various driving modes, such as a twisted nematic (TN) mode, a vertical alignment (VA) mode, an in-plane switching (IPS) mode, and a fringe field switching (FFS) mode.

[0152] For example, the first substrate may be a TFT substrate and may include a plurality of pixels defined by a plurality of gate lines and data lines that cross each other. Each pixel may include a TFT connecting a corresponding gate line and a corresponding data line, a pixel electrode connected to the TFT, and a common electrode adjacent to the pixel electrode and provided with a common voltage. Based on the driving mode of the liquid crystal layer, the common electrode may be arranged on the second substrate. A driving circuit unit for driving the display panel and a pad portion connected to the driving circuit unit may be located on one side of the first substrate. The second substrate may be a color filter array substrate and may include a color filter layer. When the display panel 100 is driven in a color filter on TFT (COT) mode or a TFT on color filter (TOC) mode, the color filter layer may be arranged on the first substrate.

[0153] The backlight unit may be located under the display panel 100 and may irradiate light onto the display panel 100. The display panel 100 may control transmittance of light emitted from the backlight unit to display an image.

[0154] The display device 1000 may be a display module that may include a display panel 100 and a driving circuit unit for driving the display panel 100. For example, the driving circuit unit may include an integrated circuit chip (IC chip) and / or a flexible printed circuit board (FPCB). A driving circuit unit for applying a voltage, such as a driving integrated circuit (IC), may be mounted on the FPCB. Alternatively, the driving circuit unit may be implemented in a different type, such as a chip on film (COF) type.

[0155] The gate line and the data line of the display panel 100 may be connected to the FPCB. When an electrical signal is applied from the FPCB, the electrical signal may be applied to the source electrode and the drain electrode of the TFT. The FPCB may receive an image signal from outside the display panel 100 to apply a driving signal to the gate line and the data line of the display panel 100.

[0156] The FPCB may generate a gate signal and a data signal for driving the display panel 100, and a plurality of timing signals allowing the gate signal and the data signal to be applied at an appropriate time. The FPCB may apply the gate signal and the data signal to the gate line and the data line of the display panel 100. In addition, the FPCB may include an amplifier. A cover window may be provided on the display module. The cover window may be attached to the entire surface of the display module or the entire surface of the polarizing film.

[0157] The support member 400 may be a plate-like member provided on the rear surface or the entire surface of the display panel 100. As an example, the support member 400 may be referred to as a "cover bottom", "board bottom", "back cover", "base frame", "metal frame", "metal frame", "frame seat", or "m frame". Therefore, the support member 400 may include any type of frame or plate-like structure on the rear surface of the display device 1000.

[0158] The sound generator 300 may include a piezoelectric sound generator. The sound generator may be referred to as an "actuator," "stimulator," or "transducer," but the embodiments are not limited to those terms.

[0159] When the sound generator 300 includes a piezoelectric sound generator, a display device having a thickness less than that of a magnetic type speaker can be manufactured. For example, a magnetic type speaker may include a magnet and a center pole on a board, a bobbin surrounding the center pole, and a coil wound on the bobbin.

[0160] Figure 3A and Figure 3B A sound generating method of a sound generator according to an exemplary embodiment of the present disclosure is illustrated.

[0161] A piezoelectric element may be an element having a characteristic (e.g., piezoelectric effect) of causing a potential difference due to electric polarization caused by an external force. When a voltage is applied, deformation or stress may occur. According to one embodiment, for example, the piezoelectric element may include, for example, quartz, tourmaline, tartrate tetrahydrate (or Rochelle salt) (Rochelle salt tartratetetraphydrate (or Rochelle salt)), barium titanate (BaTiO3), ammonium dihydrogen phosphate (or ammonium phosphate) (NH4H2PO4), piezoelectric ceramics, etc.

[0162] The sound generator may include: a piezoelectric material layer having a piezoelectric effect, a first electrode located on the front surface of the piezoelectric material layer, and a second electrode located on the rear surface of the piezoelectric material layer. When the sound generator includes a piezoelectric material layer, the sound generator may be referred to as a "piezoelectric element". The piezoelectric material layer may include a piezoelectric material that generates vibrations through an electric field. For example, the first electrode and the second electrode may overlap each other by sandwiching a piezoelectric material layer therebetween. The first electrode and the second electrode may include an opaque metal material having relatively low resistance and excellent radiation performance, and may be formed of a transparent conductive material or a conductive polymer material, without being limited to an opaque metal material. The embodiments are not limited to these examples.

[0163] Piezoelectric elements can be formed by sintering materials having a piezoelectric effect. The piezoelectric material layer can be characterized in that, while applying pressure or distortion to the crystal structure by an external force, a potential difference is generated by dielectric polarization based on the relative position change of positive (+) ions and negative (-) ions. Therefore, depending on the voltage that can be applied, vibration can be generated by the electric field.

[0164] The piezoelectric material layer may include one or more of the following: a polymer piezoelectric material, a thin film piezoelectric material, a piezoelectric material of a composite material, and a piezoelectric material of a single crystal ceramic or a polycrystalline ceramic. For example, the piezoelectric material layer may include an insulating elastic material, such as silicon, acrylic acid and / or polyurethane. The polymer piezoelectric material may include one or more of the following: polyvinylidene fluoride (PVDF), polyvinylidene fluoride-trifluoroethylene copolymer (P(VDF-TrFe)) or P(VDFTeFE). The polymer piezoelectric material may be realized by a piezoelectric polymer material such as PVDF or PZT (for example, a general term for a solid solution of lead zirconate (PbZrO3) and lead titanate (PbTiO3)), and PVDF may include polyvinylidene fluoride trifluoroethylene (PVDF-TrFE), and may be characterized in that it can be easily made into the form of a flexible film.

[0165] For example, the piezoelectric material of the thin film may include one or more of the following: zinc oxide (ZnO), cadmium sulfide (CdS) and aluminum nitride (AlN). For example, the piezoelectric material of the composite material includes one or more of the following: lead zirconate titanate (PZT)-PVDF, PZT-silicone rubber, PZT-epoxy resin, PZT-foamed polymer or PZT-foamed polyurethane. For example, the piezoelectric material of the single crystal ceramic may include one or more of the following: alpha aluminum phosphate (α-AlPO4), alpha silicon dioxide (α-SiO2), lithium niobate (LiNbO3), terbium permanganate (Tb2(MoO4)3), lithium tetraborate (Li2B4O7), or ZnO. The piezoelectric material of the polycrystalline ceramic may include one or more of the following: PZT-based materials, PT-based materials, PZT-composite perovskite-based ceramic materials and BaTiO3 materials.

[0166] Therefore, the piezoelectric element may have a structure in which the piezoelectric element including electrodes may be attached to both sides of a metal vibration plate or a polymer, such as using an adhesive. The shape of the piezoelectric element may be deformed by applying an alternating current (AC) voltage to both sides of the piezoelectric element, and sound may be generated by transferring the shape deformation of the piezoelectric element to the vibration plate.

[0167] Piezoelectric speakers using piezoelectric elements can be divided into thin film type piezoelectric speakers and laminated (or stacked) type piezoelectric speakers. Thin film type piezoelectric speakers can use the following principle: electrodes can be formed of piezoelectric thin film materials in each of the lower and upper parts, and sound can be generated by applying voltage.

[0168] A laminated (or stacked) type piezoelectric speaker may include a plurality of layers of a piezoelectric element between two electrodes. An AC voltage may be applied between the two electrodes, and the laminated type piezoelectric speaker may bend up and down according to the AC voltage. The piezoelectric element may use the above-mentioned materials, but the embodiment is not limited thereto. Here, an example is described in which the sound generator includes a laminated type piezoelectric speaker, but the embodiment of the present disclosure is not limited thereto. For example, a thin film type piezoelectric speaker may also be included. This will be referred to below. Figure 3A and Figure 3B .

[0169] Figure 3A and Figure 3B A sound generating method of a sound generator according to an embodiment of the present disclosure is shown.

[0170] Figure 3A FIG. 2 shows a side structure of a sound generator according to an exemplary embodiment of the present disclosure. Figure 3AIn the example of FIG. 1 , a positive (+) voltage and a negative (-) voltage are applied to the first electrode E1 and the second electrode E2, respectively. When a voltage having a direction opposite to the polarization direction (shown as a solid line) is applied (the direction of the electric field is shown as a dotted line), stress can be generated based on the piezoelectric effect, and deformation based on contraction or expansion in the displacement direction (shown as a thick solid line) can be generated. Therefore, as Figure 3B As shown in the example of , deformation caused by AC voltage can occur in the piezoelectric sound generator, and the piezoelectric sound generator can be changed to a vertical motion mode or an up-and-down motion mode, or can be bent in a displacement direction (illustrated as a thick solid line). Vibration can be generated based on the vertical motion mode or the up-and-down motion mode, and sound can be generated based on the vibration.

[0171] The inventors of the present disclosure have recognized the problem that when the piezoelectric sound generator is attached to the entire display panel, the entire area of ​​the sound generator may be fixed to reduce vibration and the frequency band may be narrowed due to the rigidity of the display panel. The inventors have recognized that because the frequency band of the low-pitched sound band is determined according to the material and structure of the display panel, it may be difficult to change the playback frequency band by design. In addition, the inventors of the present disclosure have recognized the problem that the frequency band is upgraded to the high-pitched sound band because the entire area of ​​the sound generator is fixed. In addition, the inventors of the present disclosure have recognized that when the piezoelectric sound generator has been first attached to the display panel, it may be difficult to couple the supporting member to the display panel.

[0172] In this regard, the inventors of the present disclosure have performed several experiments to output the sound of the low-pitched vocal range, and invented a display device including a new sound generator that can improve the sound output characteristics of the low-pitched vocal range. Figures 4 to 7 The display device is described by way of example.

[0173] Figure 4 A display device according to an exemplary second embodiment of the present disclosure is shown.

[0174] Reference Figure 4 In the example of FIG. 1 , the display device 2000 may include a display panel 100, a support member 400, and a sound generating module 1200. The sound generating module 1200 may be located between the display panel 100 and the support member 400. The sound generating module 1200 may include: a sound generator 300, a vibration member 600, a vibration adjusting member 501, and a vibration transmitting member 502.

[0175] The support member 400 and the sound generator 300 may be located on the rear surface of the display panel 100. The sound generator 300 may be located between the display panel 100 and the support member 400. The vibration member 600 may be located between the sound generator 300 and the support member 400 to generate a low-pitched vocal cord. For example, the vibration member 600 may be located on the rear surface of the sound generator 300. The low-pitched vocal cord may be transmitted to the display panel 100 through the air gap between the vibration member 600 and the display panel 100. The vibration member 600 may include stainless steel, but the embodiment is not limited thereto.

[0176] The vibration member 600 may have a size, such as a diameter, an area, or a volume, greater than or equal to that of the sound generator 300. When the size of the vibration member 600 is greater than that of the sound generator 300, low-pitched vocal cords may be more improved than when the size of the vibration member 600 is smaller than that of the sound generator 300.

[0177] At least one first vibration adjusting member 501 may be located between the vibration member 600 and the support member 400 to generate good resonance from the vibration member 600. The support member 400 may be located on the rear surface of the vibration member 600. At least one first vibration adjusting member 501 may be located at the periphery of the display panel 100. At least one first vibration adjusting member 501 may be located at the edge of the sound generator 300. For example, at least one first vibration adjusting member 501 may be relatively located at each of two edges of the sound generator 300.

[0178] When at least one first vibration adjusting member 501 includes a soft material, the resonant frequency can be reduced. The soft material can be a rubber-based material or a pad-lined material, but the embodiment is not limited thereto. For example, the rubber-based material can be silicon or polyurethane, but the embodiment is not limited thereto. This will be described with reference to the following formula 1.

[0179] Formula 1:

[0180]

[0181] Assuming that the damping strength of the sound generator is s (stiffness) and the weight is m (mass), the resonant frequency f0 of the sound wave generated by the vibration of the sound generator can be determined by Equation 1.

[0182] When the vibration adjusting member 501 includes a soft material, the strength of the sound generator may be reduced according to Formula 1 to reduce the resonance frequency, so that the sound characteristics of the lower vocal cords may be improved.

[0183] The vibration adjusting member 501 may function as a spring and may reduce the resonance frequency by providing flexibility to the vibration of the sound generator 300. Therefore, the vibration adjusting member 501 may be a suspension, a shock absorber, a cross frame, or a flange. However, the embodiment is not limited thereto.

[0184] Therefore, the at least one first vibration adjusting member 501 can help the sound generator 300 to produce a low-pitched vocal range. For example, the at least one first vibration adjusting member 501 can adjust the low-pitched vocal range of the sound generator 300 by reducing the frequency band.

[0185] Since the vibration adjusting member 501 can perform an alignment function during the bonding process of the display panel 100 and the supporting member 400, the position of the sound generator 300 can be fixed. For example, when the vibration adjusting member 501 has been previously attached to the supporting member 400 to perform the alignment function, the position of the sound generator 300 can be set, and the assembly of the display panel 100 and the supporting member 400 can be improved.

[0186] The vibration transfer member 502 may be located between the display panel 100 and the sound generator 300. The vibration transfer member 502 may include a material and an adhesive. For example, the adhesive may be a double-sided tape, a single-sided tape, an adhesive and / or a bonding agent, but the embodiment is not limited thereto. The vibration transfer member 502 and the at least one first vibration adjustment member 501 may include respective materials that are different from each other. For example, the vibration transfer member 502 may be a material that is stronger than the material of the vibration adjustment member 501 and may be formed of a hard material. For example, the hard material may be one or more of metal, plastic, paper, silicon, and carbon fiber, but the embodiment is not limited thereto.

[0187] The vibration transfer member 502 can transmit the high-pitched sound of the sound generator 300 to the display panel 100. The vibration transfer member 502 can be located between the display panel 100 and the sound generator 300, so that the sound generator 300 may not be attached to the entire area of ​​the display panel 100. Thus, the vibration transfer member 502 contacts the display panel 100 at its rear side and contacts the sound generator at one side facing the rear side of the display panel 100. Therefore, because the contact area between the sound generator 300 and the display panel 100 may be only a part of the display panel 100, rather than the entire area of ​​the display panel 100, the sound output from the sound generator 300 may not achieve a high-pitched sound. Because the position area where the sound generator 300 is fixed to the display panel 100 can be reduced or minimized, unnecessary vibration or movement of the sound generator 300 can be avoided to be favorable to vibration, thereby improving the flatness of the sound. The term "flatness" refers to the difference between the maximum point and the minimum point of the sound level pressure in the frequency characteristic. If the difference between the maximum point and the minimum point of the sound level pressure becomes smaller, the sound characteristics can be excellent. In addition, if the number of peak points and valley points that produce the difference becomes smaller, the sound characteristics can be excellent. The term "peak point" means that the sound pressure soars at a specific frequency, and the term "valley point" means that a specific frequency is suppressed and thus a low sound pressure is generated.

[0188] Therefore, the display device according to the exemplary embodiment of the present disclosure can play the sound of the low vocal range through the vibration member 600, the sound of the low vocal range can be output from the sound generator 300 through the vibration adjustment member 501, and the sound of the high vocal range can be output through the vibration transfer member 502. Therefore, the sound generation module 1200 can output the low-pitched vocal range to the high-pitched vocal range, which can be improved from the sound of the low-pitched vocal range, and the overall sound flatness can be improved.

[0189] Figure 5 Sound output characteristics according to an exemplary embodiment of the present disclosure are shown.

[0190] exist Figure 5 , the horizontal axis (x-axis) represents frequency in Hertz (Hz), and the vertical axis (y-axis) represents sound pressure level in decibels (dB).

[0191] The sound output characteristics may be measured by a sound analysis device. The sound analysis device may include: a sound card for sending sound to or receiving sound from the control PC, an amplifier for amplifying a signal generated from the sound card and transmitting the amplified signal to the sound generation module, and a microphone for collecting the sound generated by the sound generation module in the display panel. The sound collected by the microphone may be input to the control PC through the sound card, and a control program may be used to check the input sound to analyze the sound of the sound generation module.

[0192] exist Figure 5 In the figure, it is noted that the minimum low sound playback frequency of the dotted line (marked with a circle "B") is about 550Hz. Moreover, it is noted that the minimum low sound playback frequency of the solid line (marked with a circle "A") is about 350Hz. Therefore, if the display panel includes a sound generator, a vibration member, a vibration adjustment member, and a vibration transfer member, it is noted that the low sound playback frequency is reduced. In an exemplary embodiment of the present disclosure, it is noted that the flatness of the sound above about 350Hz can be further improved than the dotted line. For example, it is noted that in the case of the dotted line, a peak or a valley is generated at about 1kHz or less, while in the exemplary embodiment of the present disclosure corresponding to the solid line, no peak or valley is generated below about 1kHz. For example, based on a sound pressure level of about 80dB, more peaks are generated above about 1kHz in the case of the dotted line, while in the exemplary embodiment of the present disclosure corresponding to the solid line, the sound is flattened slowly above about 1kHz. Therefore, it should be noted that the sound flattening can be further improved than the control dotted line in the exemplary embodiment of the present disclosure.

[0193] Figure 6 A display device according to an exemplary third embodiment of the present disclosure is shown.

[0194] Reference Figure 6 In the example of FIG. 3 , the display device 3000 may include a display panel 100, a support member 400, and a sound generating module 1400. The sound generating module 1400 may be located between the display panel 100 and the support member 400. The sound generating module 1400 may include: a sound generator 300, a vibration member 600, a vibration adjusting member 501, and a second vibration adjusting member 505.

[0195] The support member 400 and the sound generator 300 may be located on the rear surface of the display panel 100. The sound generator 300 may be located between the display panel 100 and the support member 400. The vibration member 600 may be located between the sound generator 300 and the support member 400 to generate a low-pitched vocal cord. For example, the vibration member 600 may be located on the rear surface of the sound generator 300. The sound of the low-pitched vocal cord may be transmitted to the display panel 100 through the air gap between the vibration member 600 and the display panel 100. The vibration member 600 may include stainless steel, but the embodiment is not limited thereto.

[0196] The vibration member 600 may have a size, for example, a diameter, an area, or a volume, greater than or equal to that of the sound generator 300. If the size of the vibration member 600 is greater than that of the sound generator 300, the sound of the low-pitched vocal cords may be more improved than when the size of the vibration member 600 is smaller than that of the sound generator 300.

[0197] At least one first vibration adjusting member 501 may be located between the vibration member 600 and the support member 400 to generate good resonance from the vibration member 600. At least one first vibration adjusting member 501 may be located at an edge of the display panel 100. At least one first vibration adjusting member 501 may be located at an edge of the sound generator 300. For example, at least one first vibration adjusting member 501 may be located at each of both side edges of the sound generator 300, respectively. At least one first vibration adjusting member 501 may be located at each of both side edges of the vibration member 600, respectively.

[0198] When at least one first vibration adjusting member 501 may include a soft material, the resonant frequency may be reduced. The soft material may be a rubber-based material or a pad-lined material, but embodiments are not limited thereto. For example, the rubber-based material may be silicon or polyurethane, but embodiments are not limited thereto. Since the description of the vibration adjusting member is substantially similar to that of Formula 1, a detailed description will be omitted here.

[0199] The vibration adjusting member 501 may function as a spring and may reduce a resonance frequency by providing flexibility to the vibration of the sound generator 300. Therefore, the vibration adjusting member 501 may be a suspension, a shock absorber, a cross bracket, or a flange, but the embodiments are not limited to these terms or structures.

[0200] Therefore, the at least one first vibration adjusting member 501 can help the sound generator 300 to generate the sound of the low-pitched vocal range. For example, the at least one first vibration adjusting member 501 can adjust the sound of the low-pitched vocal range of the sound generator 300 by reducing the frequency band.

[0201] Since the vibration adjusting member 501 can perform an alignment function during the bonding process of the display panel 100 and the supporting member 400, the position of the sound generator 300 can be fixed. For example, when the vibration adjusting member 501 has been previously attached to the supporting member 400 to perform the alignment function, the position of the sound generator 300 can be set, and the assembly of the display panel 100 and the supporting member 400 can be improved.

[0202] At least one second vibration adjusting member 505 may be located between the display panel 100 and the vibration member 600. At least one second vibration adjusting member 505 may be located at an edge of the display panel 100. At least one second vibration adjusting member 505 is disposed at an edge of the sound generator 300. For example, at least one second vibration adjusting member 505 may be located at both side edges of the sound generator 300, respectively. At least one second vibration adjusting member 505 may be located at both side edges of the vibration member 600, respectively.

[0203] The at least one second vibration adjusting member 505 may include the same material as the at least one first vibration adjusting member 501, but the embodiment is not limited thereto. For example, the second vibration adjusting member 505 may include a rubber-based material or a pad-backing material, but the embodiment is not limited thereto. For example, the rubber-based material may be silicon or polyurethane, but the embodiment is not limited thereto.

[0204] The second vibration adjusting member 505 can enhance the low vocal cord sound, or the low and middle vocal cord sound of the sound generator 300 together with the vibration member 600. For example, at least one first vibration adjusting member 501 and at least one second vibration adjusting member 505 can adjust the sound of the low-pitched vocal cord of the sound generator 300, or the sound of the low-pitched and middle-pitched vocal cord.

[0205] Therefore, the display device according to the third exemplary embodiment of the present disclosure can generate the sound of the low vocal cords through the vibration member 600, and the sound of the low-pitched vocal cords of the sound generator 300, or the sound of the low-pitched and middle-pitched vocal cords, can be improved through the vibration adjustment member 501 and the second vibration adjustment member 505. Therefore, the sound generation module 1400 can output the sound of the low-pitched vocal cords to the high-pitched vocal cords, which can be improved from the low vocal cords sound or the sound of the low-pitched and middle-pitched vocal cords, and the overall sound flatness can be improved.

[0206] Figure 7 Sound output characteristics according to an exemplary embodiment of the present disclosure are shown.

[0207] exist Figure 7 , the horizontal axis (x-axis) represents frequency in Hertz (Hz), and the vertical axis (y-axis) represents sound pressure level in decibels (dB).

[0208] The sound output characteristics may be measured by a sound analysis device. The sound analysis device may include: a sound card for sending and receiving sounds to and from a control PC, an amplifier for amplifying a signal generated from the sound card and transferring the amplified signal to a sound generation module, and a microphone for collecting sounds generated by the sound generation module in the display panel. The sounds collected by the microphone may be input to the control PC through the sound card, and a control program may be used to check the input sounds to analyze the sounds of the sound generation module. Figure 7 In the middle, the dotted line is measured Figure 2 The example shows the device and the solid line measures Figure 6 Display device in the example.

[0209] Notice, Figure 7 The minimum bass playback frequency of the middle dashed line (marked by a circle "B") is about 550 Hz. Also, it should be noted that Figure 7The minimum low sound playback frequency (marked with a circle "A") of the solid line is about 350 Hz. Therefore, if the display panel may include a sound generator, a vibration member, a vibration adjustment member, and a second vibration adjustment member, it is noted that the low sound generation frequency is reduced. In an embodiment of the present disclosure, it is noted that the flattening of sounds above about 350 Hz can be further improved than the control dotted line. For example, it is noted that peaks or valleys are generated below 1 kHz in the case of the dotted line, while in the embodiment of the present disclosure corresponding to the solid line, no peaks or valleys are generated below about 1 kHz. For example, based on a sound pressure level of about 80 dB, more peaks are generated above about 1 kHz in the case of the control dotted line, while in the embodiment of the present disclosure corresponding to the solid line, sound flattening is slow above about 1 kHz. Therefore, it is noted that sound flattening can be further improved than the control dotted line in an embodiment of the present disclosure.

[0210] FIG. 8A to FIG. 8C An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0211] Reference FIG. 8A to FIG. 8C For example, the rear surface of the display panel 100 may include a first area L, a second area R, and a third area C. The first area L may be a left area of ​​the rear surface of the display panel 100, the second area R may be a right area of ​​the rear surface of the display panel 100, and the third area C may be a central area of ​​the rear surface of the display panel 100. As will be understood by those skilled in the art, it should be appreciated that the "left" and "right" used herein are interchangeable. The terms are used herein for ease of explanation.

[0212] Reference Fig. 8A and Figure 8B In the example of FIG. 1-1, the 1-2 sound generating module 1200 and the 1-3 sound generating module 1200′ may be located on the first area L and the second area R, respectively. For example, the 1-1 sound generating module 1200 may be located at the first area L of the rear surface of the display panel 100, and the 1-2 sound generating module 1200′ may be located at the second area R of the rear surface of the display panel 100. Because the 1-1 sound generating module 1200 and the 1-3 sound generating module 1200′ are the same as those described above, Figure 4 The sound generating module is described in the example, so its detailed description will be omitted.

[0213] Reference Figure 8C For example, the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' may be located at the first area L and the second area R, respectively. The second sound generating module 1400 may be located at the third area C. Since the second sound generating module 1400 is a reference Figure 6The sound generating module is described in the example, so its detailed description will be omitted.

[0214] Reference FIG. 8A to FIG. 8C In an example, the first spacer 1700 may be located at an edge of the rear surface of the display panel 100. The first spacer 1700 may be located at an edge of the supporting member or an edge of the upper surface of the supporting member. Moreover, the first spacer 1700 may be located between the display panel and the supporting member. For example, the first spacer 1700 may be located between the rear surface of the display panel and the upper surface of the supporting member. The first spacer 1700 may be the entire area of ​​the four sides outside the rear surface of the display panel 100. The first spacer 1700 may be arranged along the shape of the display panel 100. For example, the first spacer 1700 may have a rectangular shape and may be changed according to the shape of the display panel without being limited to the rectangular shape.

[0215] Reference Fig. 8A For example, the second partition 1700 ′ may be located between the 1-1th sound generating module 1200 and the 1-2nd sound generating module 1200 ′. For example, the second partition 1700 ′ may be located between the first region L and the second region R.

[0216] Reference Figure 8B and Figure 8C In an example, at least two partitions, a second partition 1700' and a third partition 1700", may be located between the first sound generating module 1200 and the second sound generating module 1200'. For example, the second partition 1700' may be located between the first region L and the third region C, and the third partition 1700" may be located between the second region R and the third region C.

[0217] The first spacer 1700, the second spacer 1700' and the third spacer 1700" may be located on the rear surface of the display panel 100. The first spacer 1700, the second spacer 1700' and the third spacer 1700" may be located between the display panel and the supporting member. The first spacer 1700, the second spacer 1700' and the third spacer 1700" may be located on the rear surface or the upper surface of the supporting member.

[0218] The first partition 1700, the second partition 1700' and the third partition 1700" may include double-sided tape, single-sided tape, adhesive and / or bonding agent, but the embodiment is not limited thereto. The first partition 1700, the second partition 1700' and the third partition 1700" may be air gaps or spaces that can generate sound when the display panel 100 is vibrated by the sound generating modules 1200, 1200' and 1400'. That is, the first partition 1700, the second partition 1700' and the third partition 1700" may be air gaps or spaces for generating or transmitting sound. The partition may be an enclosure or a baffle, and the embodiment is not limited to these terms. The first partition 1700, the second partition 1700' and the third partition 1700" may have a sealed structure or a non-sealed structure. Therefore, each of the first spacer 1700, the second spacer 1700', and the third spacer 1700" may reduce or prevent sound from leaking through the sides of the display panel 100 to output the sound to the front of the display panel, thereby improving sound output characteristics.

[0219] The second partition 1700' and the third partition 1700" can separate the left sound and the right sound generated from the 1-1 sound generating module 1200 and the 1-2 sound generating module 1200'. When the vibration of the display panel 100 at the space or air gap which can be defined as the second partition 1700' and the third partition 1700" is attenuated or absorbed at the center of the display panel, the sound at the first area L corresponding to the left area can be reduced or prevented from being transmitted to the space of the second area R corresponding to the right area, and the sound at the second area R corresponding to the right area can be reduced or prevented from being transmitted to the first area L corresponding to the left area. Therefore, when the second partition 1700' and the third partition 1700" are configured, the left sound and the right sound can be separated, and the sound output characteristics can be improved. The 1-1 sound generating module 1200 and the 1-2 sound generating module 1200' can output sounds of different low, middle and high pitch sound bands, output stereo sound by left and right sound separation, and can provide a display device with a 2.1 channel type sound output characteristic. For example, the middle pitch sound band can be about 200Hz to 3kHz, the high pitch sound band can be about 3kHz or more, and the low pitch sound band can be about 200Hz or less. The embodiment is not limited thereto.

[0220] A double-structured partition including two or more partitions may be provided between the 1-1 sound generating module 1200 and the 1-2 sound generating module 1200'. For example, when the left and right regions of the display panel have the same vibration characteristics when the left and right regions output the same sound to achieve monophonic sound, resonance or interference may be maximized at a certain frequency band, so that the problem that the sound pressure level may be reduced may occur. Therefore, two or more partitions may be provided to reduce the influence of the difference in the resonant vibration time of the low, medium and high-pitched sounds generated by the first sound generating module corresponding to the first region L of the left region and the 1-2 sound generating module corresponding to the second region R of the right region on the sound characteristics. If three or more partitions are provided between the 1-1 sound generating module and the 1-2 sound generating module, even if severe sound interference of the left and right regions may occur, the sound pressure level reduction may be reduced, so that the recognition of discontinuous sound output characteristics may be reduced or prevented.

[0221] Therefore, when two or more partitions are provided in the central area of ​​the display panel, the influence of the difference in the resonant vibration time of low, medium and high pitch sounds at the left and right side areas of the display panel on the sound characteristics can be reduced. When a partition is provided between two sound generating modules so that the sound can be separated left and right, the stereo characteristics of the sound can be improved. The sounds of the low, medium and high pitch sound bands can be output through the two sound generating modules.

[0222] Reference Fig. 8A For example, the 1-1st sound generating module 1200 may be located at the first area L corresponding to the left area, and the 1-2nd sound generating module 1200' may be located at the second area R corresponding to the right area. Since the left sound and the right sound may be separated by the second partition 1700', the sound quality degradation caused by the interference at the first area L and the second area R may be reduced. Therefore, the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' may output sounds of different low, middle, and high pitch vocal ranges with improved sounds of the low vocal range.

[0223] Reference Figure 8BIn the example of, the 1-1 sound generating module 1200 may be located at the first area L corresponding to the left area, and the 1-2 sound generating module 1200' may be located at the second area R corresponding to the right area. There may be no sound generating module at the third area C corresponding to the center area. Therefore, the sound quality degradation caused by the interference at the first area L and the second area R can be reduced. Therefore, the sound characteristics of the low, medium and high pitch vocal cords can be further improved. The area of ​​the third area C may be smaller than the area of ​​the first area L and the second area R. The third area C can reduce the sound quality degradation caused by the interference at the first area L and the second area R. In this case, the sound of the low-pitched vocal cords can be improved. Therefore, the sound of the low, medium and high pitch vocal cords in which the sound of the low-pitched vocal cords can be improved can be output, and stereo sound can be output.

[0224] Reference Figure 8C In the example of, the 1-1 sound generating module 1200 may be located in the first area L corresponding to the left area, the 1-2 sound generating module 1200' may be located in the second area R corresponding to the right area, and the second sound generating module 1400 may be located in the third area C corresponding to the center area. The second sound generating module 1400 may improve the sound of the low-pitched vocal cords, or the sound of the low-pitched and middle-pitched vocal cords. For example, the second sound generating module 1400 may be a woofer. Therefore, the sound of the low-medium-high-pitched vocal cords may be improved, wherein the sound of the low-pitched vocal cords, or the sound of the low-pitched and middle-pitched vocal cords is improved. Therefore, a display device that can output stereo and may have a 2.1-channel type sound output characteristic may be provided.

[0225] FIG. 8A to FIG. 15J It is shown that the sound generating module is located at the center of the first area L which may be the left area of ​​the display panel 100 or the second area R which may be the right area of ​​the display panel 100. Without being limited to this example, the sound generating module may be inclined toward the first area L which may be the left area of ​​the display panel 100 or the second area R which may be the right area of ​​the display panel 100. Alternatively, if the sound generating module is more inclined toward the outside of the first area L and the second area than the first area L and the second area R, the stereo sound characteristics may be further improved.

[0226] 9A to 9C An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0227] refer to Figures 8A to 8C The first separator 1700, the second separator 1700' and the third separator 1700" described in the example of 9A to 9C Therefore, the detailed description may be omitted.

[0228] Reference 9A to 9C For example, the rear surface of the display panel 100 may include a first area L, a second area R, and a third area C. The first area L may be a left area of ​​the rear surface of the display panel 100, the second area R may be a right area of ​​the rear surface of the display panel 100, and the third area C may be a central area of ​​the rear surface of the display panel 100.

[0229] Reference Fig. 9A and Fig. 9B , the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400′ may be located in the first area L and the second area R, respectively. For example, the 2-1st sound generating module 1400 may be located at the first area L of the rear surface of the display panel 100, and the 2-2nd sound generating module 1400′ may be located at the second area R of the rear surface of the display panel 100. Because the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400′ are reference Figure 6 The sound generating module is described in the example, so its detailed description will be omitted.

[0230] Reference Fig. 9C For example, the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400' may be located in the first area L and the second area R, respectively. The first sound generating module 1200 may be located in the third area C. Since the first sound generating module 1200 is a reference Figure 4 The sound generating module is described in the example, so its detailed description will be omitted.

[0231] Reference 9A to 9C In an example, the first spacer 1700 may be located at an edge of the rear surface of the display panel 100. The first spacer 1700 may be located at an edge of the supporting member or an edge of the upper surface of the supporting member. Moreover, the first spacer 1700 may be located between the display panel and the supporting member. For example, the first spacer 1700 may be located between the rear surface of the display panel and the upper surface of the supporting member. The first spacer 1700 may be the entire area of ​​the four edges outside the rear surface of the display panel 100. The first spacer 1700 may be arranged along the shape of the display panel 100. For example, the first spacer 1700 may have a rectangular shape and may be changed according to the shape of the display panel without being limited to the rectangular shape.

[0232] Reference Fig. 9A For example, the second partition 1700 ′ may be located between the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400 ′. For example, the second partition 1700 ′ may be located between the first region L and the second region R.

[0233] Reference Fig. 9Band Fig. 9C In the example, at least two partitions, a second partition 1700' and a third partition 1700", may be located between the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400'. For example, the second partition 1700' may be located between the first region L and the third region C, and the third partition 1700" may be located between the second region R and the third region C.

[0234] The first spacer 1700, the second spacer 1700' and the third spacer 1700" may be located on the rear surface of the display panel 100. The first spacer 1700, the second spacer 1700' and the third spacer 1700" may be located between the display panel and the supporting member. The first spacer 1700, the second spacer 1700' and the third spacer 1700" may be located on the rear surface or the upper surface of the supporting member.

[0235] The first spacer 1700 , the second spacer 1700 ′, and the third spacer 1700 ″ may be one of a double-sided tape, a single-sided tape, an adhesive, and / or a bonding agent, but the embodiment is not limited thereto.

[0236] Reference Fig. 9A In the example of the present invention, the 2-1st sound generating module 1400 may be located at the first area L corresponding to the left area, and the 2-2nd sound generating module 1400' may be located at the second area R corresponding to the right area. When the left sound and the right sound are separated by the second partition 1700', the sound quality degradation caused by the interference at the first area L and the second area R may be reduced. Therefore, the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400' may output the sound of the low-pitched vocal range or the sound of the low-pitched vocal range in which the sound of the low-pitched vocal range is improved.

[0237] Reference Fig. 9B In the example of, the 2-1st sound generating module 1400 may be located in the first area L corresponding to the left area, and the 2-2nd sound generating module 1400' may be located in the second area R corresponding to the right area. There may be no sound generating module at the third area C corresponding to the center area. Therefore, the sound quality degradation caused by the interference at the left area and the right area can be reduced. Therefore, the sound characteristics of the low-pitched vocal band can be improved more. The area of ​​the third area C may be smaller than the areas of the first area L and the second area R. In this case, the sound of the low-pitched vocal band can be improved. The third area C can reduce the sound quality degradation caused by the interference at the first area L and the second area R. Therefore, the sound of the low-middle-high pitch vocal band with improved sound of the low-pitched vocal band can be output, and stereo sound can be output.

[0238] Reference Fig. 9C In the example of, the 2-1st sound generating module 1400 may be located in the first area L corresponding to the left area, the 2-2nd sound generating module 1400' may be located in the second area R corresponding to the right area, and the first sound generating module 1200 may be located in the third area C corresponding to the center area. The first sound generating module 1200 may output the sound of the low-medium-high pitch vocal band in which the sound of the middle and high pitch vocal bands may be improved. Therefore, the sound of the low-medium-high pitch vocal band may be improved, wherein the sound of the low-medium-high pitch vocal band or the sound of the middle-high pitch vocal band may be improved. Therefore, a display device that can output stereo sound and has a 2.1 channel type sound output characteristic may be provided.

[0239] FIG. 10A to FIG. 10C An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0240] Reference Figures 8A to 8C The first separator 1700, the second separator 1700' and the third separator 1700" described in the example can be basically similarly applied to Figures 10A to 10C Therefore, the detailed description may be omitted.

[0241] Reference FIG. 10A to FIG. 10C , the rear surface of the display panel 100 may include a first area L, a second area R, and a third area C. The first area L may be a left area of ​​the rear surface of the display panel 100, the second area R may be a right area of ​​the rear surface of the display panel 100, and the third area C may be a central area of ​​the rear surface of the display panel 100. FIG. 10A to FIG. 10C For example, the bent portion 712 may be located on at least one side of the first separator 1700 .

[0242] The sound waves generated by vibrating the display panel 100 using the sound generating modules 1200 and 1200' can advance radially from the center of the sound generating modules 1200 and 1200'. These sound waves can be called "forward waves". If the forward wave is reflected on one edge of the partition 1700 and advances in the opposite direction, it is called a "reflected wave". If the reflected wave overlaps and interferes with the forward wave, the wave does not advance, and it is in a stationary state, which is called a "standing wave". Standing waves cause a decrease in sound pressure, which can deteriorate the sound output characteristics. Therefore, in order to avoid or prevent the standing waves generated due to interference between the reflected wave and the forward wave from causing a decrease in sound pressure, a curved portion can be formed in the partition. Standing waves that cause a decrease in sound pressure level can be generated at points where the forward wave is large and the reflected wave is large.

[0243] Therefore, the bent portion 712 may be located at a point where a sound wave approaching from the sound generating module is the largest. According to an exemplary embodiment of the present disclosure, the bent portion 712 may be bent toward the sound generating modules 1200 and 1200 ′.

[0244] Among the four sides of the first partition 1700, the curved portion 712 may be located in at least one side to which the maximum sound wave can approach. The curved portion 712 may face the sound generating modules 1200 and 1200' or extend toward the sound generating modules 1200 and 1200'. For example, the curved portion 712 may face the center of the 1-1st sound generating module 1200 and the center of the 1-2nd sound generating module 1200' or extend toward the center of the 1-1st sound generating module 1200 and the center of the 1-2nd sound generating module 1200', so that the reduction in the sound pressure level caused by the standing wave can be avoided or prevented. Therefore, at least one curved portion 712 may be located on at least one side of the first partition 1700, and may face the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' or extend toward the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200'.

[0245] The rear surface of the display panel 100 may include four sides, and the curved portion 712 may be located on at least one first side of the four sides. Therefore, the curved portion 712 may be formed in such a manner that two sides corresponding to the lower side and the upper side of the four sides may have a specific tilt angle relative to the horizontal direction (or length direction, lateral direction or transverse direction) of the display panel 100. The curved portion 712 may be provided as two straight line portions, and the curved portion 712 may be formed at a point where the two straight line portions intersect. The curved portion 712 may be formed in a straight line shape, a curved line shape or a circular shape, but the embodiment is not limited to these exemplary shapes.

[0246] The inclination angle (θ) of the bend 712 can be changed based on the requirements for limiting standing waves, and the inclination angle (θ) of the bend 712 can be set in a range of, for example, from 10° to 30°. For example, in an example where the sound output range for a low-pitched vocal cord or the output of a sound generating module is large, the inclination angle (θ) of the bend 712 can be increased. In an example where the sound output range for a high-pitched vocal cord or the output of a sound generating module is small, the inclination angle (θ) of the bend 712 can be reduced. In one example, the inclination angle (θ) of the bend 712 can be an angle obtained by one side of the first partition 1700 relative to the horizontal direction (or length direction) of the display panel 100. As used herein, the horizontal direction or the lateral direction corresponds to the long side direction of the display device, and the vertical direction or the longitudinal direction corresponds to the short side direction of the display device.

[0247] Reference Fig. 10B and Fig. 10C For example, the second bend 713 may be located between the second partition 1700' and the third partition 1700". The shape of the second bend 713 may be the same as the shape of the bend 712, but the embodiment is not limited thereto. For example, the second bend 713 may face a direction different from the direction of the bend 712, or extend in a direction different from the direction of the bend 712, or extend outward in a direction different from the direction of the bend 712. The second bend 713 may not be provided, or the second bend 713 may be arranged in a straight line shape between the second partition 1700' and the third partition 1700". The bend 712 and the second bend 713 may have a sealed structure or a non-sealed structure.

[0248] Reference Fig. 10A In the example of the display panel 100, the 1-1 sound generating module 1200 and the 1-2 sound generating module 1200' may be located in the first area L and the second area R, respectively. For example, the 1-1 sound generating module 1200 may be located in the first area L on the rear surface of the display panel 100, and the 1-2 sound generating module 1200' may be located in the second area R on the rear surface of the display panel 100. When the left sound and the right sound can be separated by the second partition 1700', the sound quality degradation caused by the interference at the first area L and the second area R can be reduced. Therefore, the 1-1 sound generating module 1200 and the 1-2 sound generating module 1200' can output the sound of the different low-middle-high vocal cords in which the sound of the low-pitched vocal cord can be improved. Because the curved portion 712 can reduce the reduction in the sound pressure level caused by the standing wave, a display device in which the sound of the low-pitched vocal cord can be further improved and the sound of the different low-middle-high vocal cords can be further improved can be provided.

[0249] Reference Fig. 10BIn the example of, the 1-1 sound generating module 1200 may be located in the first area L corresponding to the left area, and the 1-2 sound generating module 1200' may be located in the second area R corresponding to the right area. There may be no sound generating module at the third area C corresponding to the center area. Thus, the sound quality degradation caused by the interference at the left area and the right area can be reduced. Moreover, the sound characteristics of the low-middle-high tone vocal cords can be further improved. The size (e.g., area) of the third area C can be relatively smaller than the size of the first area L and the second area R. In this case, the sound of the low-middle-high tone vocal cords can be improved. For example, the third area C can make it possible to reduce the sound quality degradation caused by the interference of the first area L and the second area R. Therefore, the sound of the low-middle-high tone vocal cords in which the sound of the low-middle-high tone vocal cords can be improved can be output. Because the curved portion 712 can reduce the reduction in the sound pressure level caused by the standing wave, a display device can be provided in which the sound of the low-middle-high tone vocal cords can be further improved and the sound of the low-middle-high tone vocal cords can be further improved.

[0250] Reference Fig. 10C In the example of , the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' may be located in the first area L and the second area R, respectively. The second sound generating module 1400 may be located in the third area C. The sound generating module 1400 may improve the sound of the low-pitched vocal cord or the sound of the low-middle-pitched vocal cord. For example, the second sound generating module 1400 may be a woofer. Because the curved portion 712 may reduce the reduction in the sound pressure level caused by the standing wave, a display device in which the sound of the low-pitched vocal cord may be further improved and the sound of the low-middle-high-pitched vocal cord may be further improved may be provided.

[0251] FIG. 11A to FIG. 11C An example of a sound generating module and a partition in a display device of the present disclosure is shown.

[0252] Reference 9A to 9C The first separator 1700, the second separator 1700' and the third separator 1700" described in the example of FIG. 11A to FIG. 11C The examples of may be substantially similar. Therefore, repeated description may be omitted.

[0253] Reference FIG. 11A to FIG. 11C For example, the rear surface of the display panel 100 may include a first area L, a second area R, and a third area C. The first area L may be a left area of ​​the rear surface of the display panel 100, the second area R may be a right area of ​​the rear surface of the display panel 100, and the third area C may be a central area of ​​the rear surface of the display panel 100.

[0254] Reference Fig.11A and Fig. 11BFor example, the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400′ may be located in the first area L and the second area R, respectively. For example, the 2-1st sound generating module 1400 may be located in the first area L of the rear surface of the display panel 100, and the 2-2nd sound generating module 1400′ may be located in the second area R of the rear surface of the display panel 100.

[0255] Reference Fig. 11C For example, the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400' may be located in the first region L and the second region R, respectively. The first sound generating module 1200 may be located in the third region C.

[0256] Reference FIG. 11A to FIG. 11C For example, the bend 712 may be located on at least one side of the first partition 1700. The bend 712 may be located in at least one side of the four sides of the first partition 1700 to which the maximum sound wave can approach. The bend 712 may face the sound generating modules 1400 and 1400' or extend toward the sound generating modules 1400 and 1400'. For example, the bend 712 may face the center of the 2-1st sound generating module 1400 and the center of the 2-2nd sound generating module 1400' or extend toward the center of the 2-1st sound generating module 1400 and the center of the 2-2nd sound generating module 1400', so that the reduction in sound pressure level caused by standing waves can be avoided or prevented. Therefore, at least one bent portion 712 may be located on at least one side of the first partition 1700 and may face or extend toward the 2-1st and 2-2nd sound generating modules 1400 and 1400 ′.

[0257] The rear surface of the display panel 100 may include four sides, and the curved portion 712 may be located on at least one of the four sides. Therefore, the curved portion 712 may be formed in such a manner that two sides corresponding to the lower side and the upper side of the four sides may have a specific inclination angle relative to the horizontal direction (or length direction, lateral direction or transverse direction) of the display panel 100. The curved portion 712 may be provided as two straight line portions, and the curved portion 712 may be formed at a point where the two straight line portions intersect. The curved portion 712 may be formed in a straight line shape, a curved line shape or a circular shape, but the embodiment is not limited to these exemplary shapes.

[0258] The inclination angle (θ) of the bend 712 can be changed based on the requirements for limiting standing waves, and the inclination angle (θ) of the bend 712 can be set in a range of, for example, 10° to 30°. For example, in an example where the sound output range for a low-pitched sound range or the output of a sound generating module is large, the inclination angle (θ) of the bend 712 can be increased. In an example where the sound output range for a high-pitched sound range or the output of a sound generating module is small, the inclination angle (θ) of the bend 712 can be reduced. In one example, the inclination angle (θ) of the bend 712 can be an angle obtained by an edge of the first partition 1700 relative to the horizontal direction (or length direction) of the display panel 100. As used herein, the horizontal direction or lateral direction corresponds to the long side direction of the display device, and the vertical direction or longitudinal direction corresponds to the short side direction of the display device.

[0259] Reference Fig. 11B and Fig. 11C For example, the second bend 713 may be located between the second partition 1700' and the third partition 1700". The shape of the second bend 713 may be the same as that of the bend 712, but the embodiment is not limited thereto. For example, the second bend 713 may face a direction different from that of the bend 712 or extend in a direction different from that of the bend 712. The second bend 713 may not be provided, or the second bend 713 may have a straight line shape. The bend 712 and the second bend 713 may have a sealed structure or a non-sealed structure.

[0260] Reference Fig.11A In the example of , the 2-1st sound generating module 1400 may be located in the first area L corresponding to the left area, and the 2-2nd sound generating module 1400' may be located in the second area R corresponding to the right area. When the left sound and the right sound are separated by the second partition 1700', the sound quality degradation caused by the interference at the first area L and the second area R can be reduced. Therefore, the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400' can output the sound of the low-pitched vocal cord or the sound of the low-medium pitch vocal cord can be improved and the sound of the different low-medium-high pitch vocal cords can be further improved. Because the curved portion 712 can reduce the reduction in the sound pressure level caused by the standing wave, a display device can be provided in which the sound of the low-pitched vocal cord or the sound of the low-medium pitch vocal cord can be further improved and the sound of the different low-medium-high pitch vocal cords can be further improved.

[0261] Reference Fig. 11BIn the example of, the 2-1st sound generating module 1400 may be located in the first area L corresponding to the left area, and the 2-2nd sound generating module 1400' may be located in the second area R corresponding to the right area. There may be no sound generating module at the third area C corresponding to the center area. Thus, the sound quality degradation caused by the interference at the left area and the right area can be reduced. Moreover, the sound characteristics of the low-pitched vocal cords can be further improved. The size (e.g., area) of the third area C can be relatively smaller than the size of the first area L and the second area R. In this case, the sound of the low-pitched vocal cords can be improved. For example, the third area C can make it possible to reduce the sound quality degradation caused by the interference of the first area L and the second area R. Therefore, the sound of the low-medium-high tone vocal cords with improved sound of the low-pitched vocal cords can be output. Because the curved portion 712 can reduce the reduction in sound pressure level caused by the standing wave, a display device can be provided in which the sound of the low-pitched vocal cords can be further improved and the sound of the low-medium-high vocal cords can be further improved.

[0262] Reference Fig. 11C In the example of , the 2-1st sound generating module 1400 may be located in the first area L corresponding to the left area, and the 2-2nd sound generating module 1400' may be located in the second area R corresponding to the right area. The first sound generating module 1200 may be located in the third area C corresponding to the center area. The first sound generating module 1200 may output the sound of the low-pitched vocal cords or the sound of the low-medium-high pitched vocal cords in which the sound of the medium-high pitched vocal cords may be improved. Because the curved portion 712 may reduce the reduction in the sound pressure level caused by the standing wave, a display device in which the sound of the low-pitched vocal cords and the sound of the medium-high pitched vocal cords may be further improved and the sound of the low-medium-high pitched vocal cords may be further improved may be provided.

[0263] FIG. 12A to FIG. 12J An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0264] Reference FIG. 8A to FIG. 8C The first separator 1700, the second separator 1700' and the third separator 1700" described in the example of FIG. 12A to FIG. 12J The examples of are basically similar. Therefore, repeated description can be omitted.

[0265] Reference FIG. 12A to FIG. 12I For example, the rear surface of the display panel 100 may include a first area L, a second area R, and a third area C. The first area L may be a left area of ​​the rear surface of the display panel 100, the second area R may be a right area of ​​the rear surface of the display panel 100, and the third area C may be a central area of ​​the rear surface of the display panel 100.

[0266] Reference Fig. 12A , Fig. 12B , Fig.12D , Fig.12E , Figure 12G and Fig.12I For example, the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200 ′ may be located in the first area L and the second area R, respectively. For example, the 1-1st sound generating module 1200 may be located in the first area L of the rear surface of the display panel 100, and the 1-2nd sound generating module 1200 ′ may be located in the second area R of the rear surface of the display panel 100.

[0267] Reference Fig. 12C , Fig.12F , Fig.12H and Fig.12J For example, the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' may be located in the first region L and the second region R, respectively. The second sound generating module 1400 may be located in the third region C.

[0268] Reference FIG. 12A to FIG. 12J In an example, the pad portion may be located on at least one of the first separator 1700 to reduce the reduction in sound pressure level caused by the standing waves generated in the vertical direction of the sound generating modules 1200 and 1200'. For example, the first separator 1700 may include a first side and a second side perpendicular to the first side, and the pad portion may be located on the second side. At least one or more pad portions may be provided. The first side may be the horizontal direction of the display panel 100, and the second side may be the vertical direction of the display panel 100. Therefore, at least one pad portion may be located on the second side of the first separator 1700 perpendicular to the first side, or may be provided on the second side of the first separator and at least one side of the second separator or the third separator.

[0269] Reference Fig. 12A , Fig. 12B and Fig. 12CIn an example of the present invention, the pad portion 821 may be located on a first side of the first separator 1700. The second pad portion 822 may be located on a second side of the first separator 1700. For example, the pad portion 821 may face the 1-2nd sound generating module 1200' or extend toward the 1-2nd sound generating module 1200', and the second pad portion 822 may face the 1-1st sound generating module 1200 or extend toward the 1-1st sound generating module 1200. The pad portion 821 may be located in the second region R, and the second pad portion 822 may be located in the first region L. At least one pad portion 821 and at least one second pad portion 822 may be located on one or more sides of the first separator 1700. The pad portion 821 and the second pad portion 822 may be symmetrically arranged with respect to the sound generating module. Therefore, the pad part 821 and the second pad part 822 may reduce a decrease in sound pressure level caused by standing waves generated in a vertical direction of the sound generating modules 1200 and 1200 ′, and vibration may be transferred to both sides, thereby improving sound output characteristics.

[0270] exist FIG. 12A to FIG. 12J In the example of FIG. 1 , one or more pad portions 821 and one or more second pad portions 822 may be located on a second side perpendicular to the first side among the four sides of the display panel 100. Two or more pad portions 821 and second pad portions 822 may be provided, but are not limited to FIG. 12A to FIG. 12J .

[0271] Reference Fig. 12A In the example of the embodiment of the present invention, the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' may be located in the first area L and the second area R, respectively. For example, the 1-1st sound generating module 1200 may be located in the first area L on the rear surface of the display panel 100, and the 1-2nd sound generating module 1200' may be located in the second area R on the rear surface of the display panel 100. Since the left sound and the right sound may be separated by the second partition 1700', the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' may output the sound of the different low-middle-high tone sound bands in which the sound of the low-pitched sound band may be improved. Since the pad portion 821 and the second pad portion 822 may reduce the reduction in the sound pressure level caused by the standing wave, a display device in which the sound of the low-pitched sound band may be further improved and the sound of the different low-middle-high tone bands may be further improved may be provided.

[0272] Reference Fig. 12BIn the example of , the 1-1st sound generating module 1200 may be located in the first area L corresponding to the left area, and the 1-2nd sound generating module 1200' may be located in the second area R corresponding to the right area. There may be no sound generating module at the third area C corresponding to the center area. Therefore, the sound of the low-mid-high tone band can be outputted, and the sound of the low-pitched vocal band can be improved. The pad portion 821 and the second pad portion 822 can reduce the reduction in sound pressure level caused by the standing wave. Therefore, the sound of the low-pitched vocal band can be further improved and the sound of the low-mid-high tone vocal band can be further improved.

[0273] Reference Fig. 12C In the example of, the 1-1 sound generating module 1200 may be located in the first area L corresponding to the left area, and the 1-2 sound generating module 1200' may be located in the second area R corresponding to the right area. The second sound generating module 1400 may be located in the third area C corresponding to the center area. For example, the second sound generating module 1400 may be a woofer. The second sound generating module 1400 may improve the sound of the low-pitched vocal cord or the sound of the low-middle pitch vocal cord. Therefore, the sound of the low-pitched vocal cord or the sound of the low-middle pitch vocal cord in which the sound of the low-middle pitch vocal cord can be improved may be output. The pad portion 821 and the second pad portion 822 may reduce the reduction in the sound pressure level caused by the standing wave. Therefore, a display device in which the sound of the low-pitched vocal cord or the low-middle pitch vocal cord can be further improved and the sound of the low-middle-high pitch vocal cord can be further improved may be provided.

[0274] Reference Fig.12DFor example, the third pad portion 823 may be located on the side facing the second side of the first separator 1700. At least one or more third pad portions 823 may be provided. The fourth pad portion 824 may be located on the side facing the second side of the first separator 1700. At least one or more fourth pad portions 824 may be provided. For example, the third pad portion 823 may face the 1-2nd sound generating module 1200' or extend toward the 1-2nd sound generating module 1200', and the fourth pad portion 824 may face the 1-1st sound generating module 1200 or extend toward the 1-1st sound generating module 1200. The third pad portion 823 may be located in the second region R, and the fourth pad portion 824 may be located in the first region L. For example, the third pad portion 823 may face the pad portion 821, and the fourth pad portion 824 may face the second pad portion 822. The third pad portion 823 and the fourth pad portion 824 may be symmetrically arranged with respect to the second separator 1700'. Since the third pad portion 823 and the fourth pad portion 824 can capture the reflected waves from the sound generating modules 1200 and 1200', the reduction in sound pressure level caused by the standing waves can be reduced. Therefore, a display device can be provided in which the sound of the low-pitched vocal cords can be further improved and the sound of the different low-middle-high-pitched vocal cords can be further improved.

[0275] Reference Fig.12E For example, the pad portion 821 may be located on the second side of the first separator 1700. The second pad portion 822 may be located on the second side of the first separator 1700. For example, the pad portion 821 may face the 1-2nd sound generating module 1200' or extend toward the 1-2nd sound generating module 1200', and the second pad portion 822 may face the 1-1st sound generating module 1200 or extend toward the 1-1st sound generating module 1200. The pad portion 821 may be disposed in the second region R, and the second pad portion 822 may be located in the first region L.

[0276] The third pad portion 823 may be located on an edge facing the second side of the first separator 1700. At least one or more third pad portions 823 may be provided. The fourth pad portion 824 may be located on an edge facing the second side of the first separator 1700. At least one or more fourth pad portions 824 may be provided. For example, the third pad portion 823 may face the 1-2nd sound generating module 1200' or extend toward the 1-2nd sound generating module 1200', and the fourth pad portion 824 may face the 1-1st sound generating module 1200 or extend toward the 1-1st sound generating module 1200. The third pad portion 823 may be provided in the second region R, and the fourth pad portion 824 may be located in the first region L. For example, the third pad portion 823 may face the pad portion 821, and the fourth pad portion 824 may face the second pad portion 822. The third pad portion 823 may be located on a second side of the third partition 1700″ and may face the 1-2nd sound generating module 1200′ or extend toward the 1-2nd sound generating module 1200′. The fourth pad portion 824 may be located on a second side of the second partition 1700′ and may face the 1-1st sound generating module 1200 or extend toward the 1-1st sound generating module 1200. Therefore, because the pad portion 821, the second pad portion 822, the third pad portion 823, and the fourth pad portion 824 may reduce a reduction in sound pressure level caused by standing waves generated in a vertical direction of the sound generating modules 1200 and 1200′, and vibration may be transmitted to both sides, sound output characteristics may be improved. Therefore, a display device in which the sound of a low-pitched vocal cord may be further improved and the sound of a low-middle-high-pitched vocal cord may be further improved may be provided.

[0277] Reference Fig.12F , references will be omitted Fig.12E The second sound generating module 1400 may be located in the third region C of the display panel 100. For example, the second sound generating module 1400 may be a woofer. The pad portion may be provided to reduce the reduction in sound pressure level caused by standing waves. Therefore, a display device in which the sound of a low-pitched vocal cord or a low-medium-pitched vocal cord can be further improved and the sound of a low-medium-high-pitched vocal cord can be further improved can be provided.

[0278] Reference Figure 12G , references will be omitted Fig.12EThe description of the pad portion to the fourth pad portion described in the example of the embodiment is repeated. At least one first member 825 and at least one second member 827 may be located in a third area corresponding to the central area of ​​the display panel 100. For example, at least one or more members may be located on at least one side of the second spacer 1700' and the third spacer 1700" and may be located in the third area C. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically or asymmetrically arranged relative to the 1-1 sound generating module 1200. For example, the first member 825 may be located above or below the second member 827 relative to the 1-1 sound generating module 1200. The first member 825 and the second member 827 may control the transmission of waves or vibrations between the second spacer 1700' and the third spacer 1700" to the first area L and / or the second area R. Therefore, it is possible to provide a display device in which the sound of the low-pitched vocal range can be further improved and the sound of the low-middle-high-pitched vocal range can be further improved.

[0279] Reference Fig.12H For example, the second sound generating module 1400 may be located in the third region C. At least one first member 825 and at least one second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically or asymmetrically arranged relative to the second sound generating module 1400. For example, the first member 825 may be located above or below the second member 827 relative to the second sound generating module 1400. Therefore, because the first member 825 and the second member 827 may control the transmission of waves or vibrations to the first region L and / or the second region R, the sound of the middle-high pitch vocal cords may be improved. Moreover, the sound of the low-pitched vocal cords or the low-medium pitch vocal cords may be improved by the second sound generating module 1400. For example, the second sound generating module 1400 may be a woofer. Therefore, a display device can be provided in which the sound of the low-pitched vocal band or the low-middle-pitched vocal band can be further improved and the sound of the low-middle-high-pitched vocal band can be further improved.

[0280] Reference Fig.12I , references will be omitted Fig.12EThe first member 825 and the second member 827 may be located in the central area of ​​the display panel 100. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically arranged relative to the sound generating modules 1200 and 1200'. For example, the first member 825 and the second member 827 may be located on the same line as the 1-1 sound generating module 1200 relative to the 1-1 sound generating module 1200. The first member 825 and the second member 827 may be asymmetrically arranged relative to the sound generating modules 1200 and 1200'. For example, relative to the 1-1 sound generating module 1200, the first member 825 may be located above the 1-1 sound generating module 1200, and the second member 827 may be located below the 1-1 sound generating module 1200. The first member 825 and the second member 827 may control the transmission of waves or vibrations between the second partition 1700' and the third partition 1700" to the first region L and / or the second region R. Therefore, a display device in which the sound of the low-pitched vocal cords may be further improved and the sound of the low-middle-high-pitched vocal cords may be further improved may be provided.

[0281] Reference Fig.12J In the example of, the second sound generating module 1400 may be located in the third area C. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically or asymmetrically arranged relative to the second sound generating module 1400. For example, the first member 825 may be located above or below the second member 827 relative to the second sound generating module 1400. Therefore, because the first member 825 and the second member 827 can control the transmission of waves or vibrations to the first area L and / or the second area R, the sound of the middle-high tone vocal cords can be improved. Moreover, the sound of the low-tone vocal cords or the low-middle tone vocal cords can be improved by the second sound generating module 1400. For example, the second sound generating module 1400 may be a woofer. Therefore, a display device in which the sound of the low-tone vocal cords or the low-middle tone vocal cords can be further improved and the sound of the low-middle-high tone vocal cords can be further improved can be provided.

[0282] FIG. 13A to FIG. 13J An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0283] Reference 9A to 9CThe first separator 1700, the second separator 1700' and the third separator 1700" described in the example of FIG. 13A to FIG. 13J The examples of are basically similar. Therefore, repeated description can be omitted.

[0284] Reference FIG. 13A to FIG. 13J For example, the rear surface of the display panel 100 may include a first area L, a second area R, and a third area C. The first area L may be a left area of ​​the rear surface of the display panel 100, the second area R may be a right area of ​​the rear surface of the display panel 100, and the third area C may be a central area of ​​the rear surface of the display panel 100.

[0285] Reference Fig.13A , Fig. 13B , Fig.13D , Fig.13E , Figure 13G and Fig.13I For example, the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400' may be located in the first area L and the second area R, respectively. For example, the 2-1st sound generating module 1400 may be located in the first area L of the rear surface of the display panel 100, and the 2-2nd sound generating module 1400' may be located in the second area R of the rear surface of the display panel 100.

[0286] Reference Fig. 13C , Fig.13F , Fig.13H and Fig.13J For example, the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400' may be located in the first region L and the second region R, respectively. The first sound generating module 1200 may be located in the third region C.

[0287] Reference Fig.13A In the example of the present invention, the pad portion 821 and the second pad portion 822 can reduce the reduction in sound pressure level caused by the standing waves generated in the vertical direction of the sound generating modules 1400 and 1400'. Therefore, a display device can be provided in which the sound of the low-pitched vocal cord or the low-middle-pitched vocal cord can be further improved and the sound of the different low-middle-high-pitched vocal cords can be further improved.

[0288] Reference Fig. 13B In the example of the present invention, the pad portion 821 and the second pad portion 822 can reduce the reduction in sound pressure level caused by the standing waves generated in the vertical direction of the sound generating modules 1400 and 1400'. Therefore, a display device in which the sound of the low-pitched vocal cords can be further improved and the sound of the low-middle-high-pitched vocal cords can be further improved can be provided.

[0289] Reference Fig. 13CIn the example of the first sound generating module 1200, the sound of the low-medium-high tone vocal cords can be improved. The pad portion 821 and the second pad portion 822 can reduce the reduction in sound pressure level caused by the standing waves generated in the vertical direction of the sound generating modules 1400 and 1400'. Therefore, a display device can be provided in which the sound of the medium-high tone vocal cords can be further improved and the sound of the low-medium-high tone vocal cords can be further improved.

[0290] Reference Fig.13D and Fig.13E In the example of FIG. 1 , the pad portion 821, the second pad portion 822, the third pad portion 823, and the fourth pad portion 824 can reduce the reduction in sound pressure level caused by the standing wave generated in the vertical direction of the sound generating module 1400, and can transfer vibration to both sides, thereby improving the sound output characteristics. Fig.13D In the example of , a display device can be provided in which the sound of a low-pitched vocal band or a low-middle-pitched vocal band can be further improved and the sound of a different low-middle-high-pitched vocal band can be further improved. Fig.13E In the example, a display device can be provided in which the sound of the low-pitched vocal range can be further improved and the sound of the low-middle-high-pitched vocal range can be further improved.

[0291] Reference Fig.13F , the pad portion 821, the second pad portion 822, the third pad portion 823, and the fourth pad portion 824 can reduce the reduction in sound pressure level caused by the standing waves generated in the vertical direction of the sound generating modules 1400 and 1400. Therefore, a display device in which the sound of the low-pitched vocal cords and the middle-high-pitched vocal cords can be further improved and the sound of the low-medium-high-pitched vocal cords can be further improved can be provided.

[0292] Reference Figure 13GIn the example of FIG. 8 , at least one first member 825 and at least one second member 827 may be located in a third area corresponding to a central area of ​​the display panel 100 . For example, at least one or more members may be located on at least one side of the second partition 1700' and the third partition 1700", and may be located in the third area C. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrical or asymmetrical relative to the 2-1st sound generating module 1400. For example, the first member 825 may be located above or below the second member 827 relative to the 2-1st sound generating module 1400. The first member 825 and the second member 827 may control the transmission of waves or vibrations between the second partition 1700' and the second partition 1700' to the first area L and / or the second area R. Therefore, a display device in which the sound of the low-pitched vocal cords can be further improved and the sound of the low-middle-high-pitched vocal cords can be further improved can be provided.

[0293] Reference Fig.13H In the example of, the first sound generating module 1200 may be located in the third area C. At least one first member 825 and at least one second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrical or asymmetrical relative to the first sound generating module 1200. For example, the first member 825 may be located above or below the second member 827 relative to the first sound generating module 1200. Therefore, when the first member 825 and the second member 827 can control the transmission of waves or vibrations to the first area L and / or the second area R, the sound of the low-pitched vocal cord or the low-medium-pitched vocal cord can be improved. Moreover, the sound of the low-pitched vocal cord and the medium-high-pitched vocal cord can be improved by the first sound generating module 1200. Therefore, a display device in which the sound of the low-pitched vocal cord and the medium-high-pitched vocal cord can be further improved and the sound of the low-medium-high-pitched vocal cord can be further improved can be provided.

[0294] Reference Fig.13I , references will be omitted Fig.13EThe first member 825 and the second member 827 may be located in the third region C, which may be the central region of the display panel 100. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrical with respect to the sound generating modules 1400 and 1400'. For example, the first member 825 and the second member 827 may be located on the same line as the 2-1st sound generating module 1400 with respect to the 2-1st sound generating module 1400. The first member 825 and the second member 827 may be asymmetrical with respect to the sound generating modules 1400 and 1400'. For example, with respect to the 2-1st sound generating module 1400, the first member 825 may be located above the 2-1st sound generating module 1400, and the second member 827 may be located below the 2-1st sound generating module 1400. The first member 825 and the second member 827 may control the transmission of waves or vibrations between the second partition 1700' and the third partition 1700" to the first region L and / or the second region R. Therefore, a display device in which the sound of the low-pitched vocal cords may be further improved and the sound of the low-middle-high-pitched vocal cords may be further improved may be provided.

[0295] Reference Fig.13J In the example of the first sound generating module 1200, the first sound generating module 1200 may be located in the third area C. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 and the second pad portion 822. The first member 825 and the second member 827 may be symmetrical or asymmetrical relative to the first sound generating module 1200. For example, the first member 825 may be located above or below the second member 827 relative to the first sound generating module 1200. Therefore, because the first member 825 and the second member 827 may control the transmission of waves or vibrations to the first area L and / or the second area R, the sound of the low-pitched vocal cord or the middle-high-pitched vocal cord may be improved. Moreover, the sound of the low-pitched vocal cord and the middle-high-pitched vocal cord may be improved by the first sound generating module 1200. Therefore, a display device in which the sound of the low-pitched vocal cord and the middle-high-pitched vocal cord may be further improved and the sound of the low-medium-high-pitched vocal cord may be further improved may be provided.

[0296] FIG. 14A to FIG. 14J An example of a sound generating module and a partition in a display device according to an embodiment of the present disclosure is shown.

[0297] Reference FIG. 8A to FIG. 8CThe first separator 1700, the second separator 1700' and the third separator 1700" described in the example of the present invention can be basically similarly applied to FIG. 14A to FIG. 14J Duplicate descriptions may be omitted.

[0298] Reference FIG. 14A to FIG. 14J For example, the rear surface of the display panel 100 may include a first area L, a second area R, and a third area. The first area L may be a left area of ​​the rear surface of the display panel 100, the second area R may be a right area of ​​the rear surface of the display panel 100, and the third area C may be a central area of ​​the rear surface of the display panel 100.

[0299] Reference Fig.14A , Fig. 14B , Fig.14D , 14E , 14G, and 14I, the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' may be located in the first area L and the second area R, respectively. For example, the 1-1st sound generating module 1200 may be located in the first area L of the rear surface of the display panel 100, and the 1-2nd sound generating module 1200' may be located in the second area R of the rear surface of the display panel 100.

[0300] Reference Fig. 14C , Fig.14F , Fig.14H and Fig.14J For example, the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' may be located in the first region L and the second region R, respectively. The second sound generating module 1400 may be located in the third region C.

[0301] Reference FIG. 14A to FIG. 14J For example, the bend 712 may be located in at least one side of the first partition 1700. The bend 712 may be located in at least one side of the four sides of the first partition 1700 to which the maximum sound wave can approach. The bend 712 may face the sound generating modules 1200 and 1200' or extend toward the sound generating modules 1200 and 1200'. For example, the bend 712 may face the center of the 1-1st sound generating module 1200 and the center of the 1-2nd sound generating module 1200' or extend toward the center of the 1-1st sound generating module 1200 and the center of the 1-2nd sound generating module 1200', so that the reduction in sound pressure level caused by standing waves can be avoided or prevented.

[0302] Reference Fig. 14B , Fig. 14C and Fig.14E , Fig.14F , Figure 14G , Fig.14H , Fig.14I and Fig.14J For example, the second bend 713 may be located between the second partition 1700' and the third partition 1700". The shape of the second bend 713 may be the same as that of the bend 712, but the embodiment is not limited thereto. For example, the second bend 713 may face a direction different from that of the bend 712 or extend in a direction different from that of the bend 712. The second bend 713 may not be provided, or the second bend 713 may be located in a straight line shape between the second partition 1700' and the third partition 1700". The bend 712 and the second bend 713 may have a sealed structure or a non-sealed structure.

[0303] Reference FIG. 14A to FIG. 14J In the example of FIG. 14 , the pad portion may be located on at least one side of the first spacer 1700 to reduce the reduction in sound pressure level caused by standing waves generated in the vertical direction of the sound generating modules 1200 and 1200 '. For example, the first spacer 1700 may include a first side and a second side perpendicular to the first side, and the pad portion may be located in the second side. At least one or more pad portions may be provided. The first side may be the horizontal direction of the display panel 100, and the second side may be the vertical direction of the display panel 100. Therefore, in the example of FIG. 14 , since the pad portion and the bent portion are provided to reduce the reduction in sound pressure level caused by standing waves, a display device in which sound output characteristics can be further improved can be provided.

[0304] Reference Fig.14A , Fig. 14B and Fig. 14C In an example of the present invention, the pad portion 821 may be located on the second side of the first separator 1700. The second pad portion 822 may be located on the second side of the first separator 1700. For example, the pad portion 821 may face the 1-2nd sound generating module 1200' or extend toward the 1-2nd sound generating module 1200', and the second pad portion 822 may face the 1-1st sound generating module 1200 or extend toward the 1-1st sound generating module 1200. The pad portion 821 may be located in the second region R, and the second pad portion 822 may be located in the first region L. At least one pad portion 821 and at least one second pad portion 822 may be located on one or more sides of the first separator 1700. The pad portion 821 and the second pad portion 822 may be symmetrically arranged with respect to the sound generating module. Therefore, the pad part 821 and the second pad part 822 may reduce a reduction in sound pressure level caused by standing waves generated in a vertical direction of the sound generating modules 1200 and 1200 ′, and vibration may be transferred to both sides, thereby improving sound output characteristics.

[0305] 14, one or more pad portions 821 and one or more second pad portions 822 may be located on a second side perpendicular to the first side among four sides of the display panel 100. Two or more pad portions 821 and second pad portions 822 may be provided, but are not limited to the example of FIG.

[0306] Reference Fig.14A In the example of the embodiment of the present invention, the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' may be located in the first area L and the second area R, respectively. For example, the 1-1st sound generating module 1200 may be located in the first area L on the rear surface of the display panel 100, and the 1-2nd sound generating module 1200' may be located in the second area R on the rear surface of the display panel 100. Since the left sound and the right sound may be separated by the second partition 1700', the 1-1st sound generating module 1200 and the 1-2nd sound generating module 1200' may output the sound of the low-pitched vocal cords and the sound of the different middle-high pitched vocal cords which are improved. Since the pad portion 821, the second pad portion 822 and the bent portion 712 may reduce the reduction in the sound pressure level caused by the standing wave, a display device in which the sound of the low-pitched vocal cords may be further improved and the sound of the different low-medium-high pitched vocal cords may be further improved may be provided.

[0307] Reference Fig. 14B In the example of, the 1-1st sound generating module 1200 may be located in the first area L corresponding to the left area, and the 1-2nd sound generating module 1200' may be located in the second area R corresponding to the right area. There may be no sound generating module at the third area C corresponding to the center area. Therefore, the sound of the low-medium-high tone vocal cords can be outputted, and the sound of the low-pitched vocal cords can be improved. The pad portion 821, the second pad portion 822, and the bent portions 712 and 713 can reduce the reduction in the sound pressure level caused by the standing wave. Therefore, a display device can be provided in which the sound of the low-pitched vocal cords can be further improved and the sound of the low-medium-high tone vocal cords can be further improved.

[0308] Reference Fig. 14CIn the example of, the 1-1st sound generating module 1200 may be located in the first area L corresponding to the left area, and the 1-2nd sound generating module 1200' may be located in the second area R corresponding to the right area. The second sound generating module 1400 may be located in the third area C corresponding to the center area. The second sound generating module 1400 may improve the sound of the low-pitched vocal range or the sound of the low-middle pitch vocal range. For example, the second sound generating module 1400 may be a woofer. Therefore, the sound of the low-pitched vocal range or the sound of the low-middle-high pitch vocal range in which the sound of the low-pitched vocal range or the sound of the low-middle-high pitch vocal range may be improved may be output. The pad portion 821, the second pad portion 822, and the bent portions 712 and 713 may reduce the reduction in the sound pressure level caused by the standing wave. Therefore, a display device in which the sound of the low-pitched vocal range or the low-middle pitch sound range may be further improved and the sound of the low-middle-high pitch vocal range may be further improved may be provided.

[0309] Reference Fig.14D In an example of the present invention, the third pad portion 823 may be further located on the side facing the second side of the first separator 1700. At least one or more third pad portions 823 may be provided. The fourth pad portion 824 may be located on the side facing the second side of the first separator 1700. At least one or more fourth pad portions 824 may be provided. For example, the third pad portion 823 may face the 1-2nd sound generating module 1200' or extend toward the 1-2nd sound generating module 1200', and the fourth pad portion 824 may face the 1-1st sound generating module 1200 or extend toward the 1-1st sound generating module 1200. The third pad portion 823 may be disposed in the second region R, and the fourth pad portion 824 may be located in the first region L. For example, the third pad portion 823 may face the pad portion 821, and the fourth pad portion 824 may face the second pad portion 822. The third pad portion 823 and the fourth pad portion 824 may be disposed relative to the second separator 1700'. Since the third pad portion 823 and the fourth pad portion 824 can have the ability to capture the reflected waves from the sound generating modules 1200 and 1200', the reduction in sound pressure level caused by the standing waves can be reduced. Therefore, a display device can be provided in which the sound of the low-pitched vocal cords can be further improved and the sound of the different low-middle-high-pitched vocal cords can be further improved.

[0310] Reference Fig.14EFor example, the pad portion 821 may be located on the second side of the first separator 1700. The second pad portion 822 may be located on the second side of the first separator 1700. For example, the pad portion 821 may face the 1-2nd sound generating module 1200' or extend toward the 1-2nd sound generating module 1200', and the second pad portion 822 may face the 1-1st sound generating module 1200 or extend toward the 1-1st sound generating module 1200. The pad portion 821 may be located in the second region R, and the second pad portion 822 may be located in the first region L.

[0311] The third pad portion 823 may be located on an edge facing the second side of the first separator 1700. At least one or more third pad portions 823 may be provided. The fourth pad portion 824 may be located on an edge facing the second side of the first separator 1700. At least one or more fourth pad portions 824 may be provided. For example, the third pad portion 823 may face the 1-2nd sound generating module 1200' or extend toward the 1-2nd sound generating module 1200', and the fourth pad portion 824 may face the 1-1st sound generating module 1200 or extend toward the 1-1st sound generating module 1200. The third pad portion 823 may be provided in the second region R, and the fourth pad portion 824 may be located in the first region L. For example, the third pad portion 823 may face the pad portion 821, and the fourth pad portion 824 may face the second pad portion 822. The third pad portion 823 may be located on a second side of the third partition 1700″ and may face the 1-2nd sound generating module 1200′ or extend toward the 1-2nd sound generating module 1200′. The fourth pad portion 824 may be located on a second side of the second partition 1700′ and may face the 1-1st sound generating module 1200 or extend toward the 1-1st sound generating module 1200. Therefore, because the pad portion 821, the second pad portion 822, the third pad portion 823, and the fourth pad portion 824 may reduce a reduction in sound pressure level caused by standing waves generated in a vertical direction of the sound generating modules 1200 and 1200′, and vibration may be transmitted to both sides, sound output characteristics may be improved. Therefore, a display device in which the sound of a low-pitched vocal cord may be further improved and the sound of a low-middle-high-pitched vocal cord may be further improved may be provided.

[0312] Reference Fig.14F , references will be omitted Fig.14EThe second sound generating module 1400 may be located in the third region C of the display panel 100. For example, the second sound generating module 1400 may be a woofer. Since the pad portion may be provided to reduce the reduction in the sound pressure level caused by the standing wave, the sound output characteristics may be improved. Therefore, a display device in which the sound of the low-pitched vocal cord or the low-medium-pitched vocal cord may be further improved and the sound of the low-medium-high-pitched vocal cord may be further improved may be provided.

[0313] Reference Figure 14G , references will be omitted Fig.14E The description of the pad portion to the fourth pad portion described in the example of the display panel 100 is repeated. At least one first member 825 and at least one second member 827 may be located in a third area corresponding to the central area of ​​the display panel 100. For example, at least one or more members may be located on at least one side of the second spacer 1700' and the third spacer 1700", and may be located in the third area C. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically or asymmetrically arranged relative to the second sound generating module 1400. For example, the first member 825 may be located above or below the second member 827 relative to the second sound generating module 1400. The first member 825 and the second member 827 may control the transmission of waves or vibrations between the second spacer 1700' and the third spacer 1700" to the first area L and / or the second area R. Therefore, it is possible to provide a display device in which the sound of the low-pitched vocal range can be further improved and the sound of the low-middle-high-pitched vocal range can be further improved.

[0314] Reference Fig.14HIn the example of, the second sound generating module 1400 may be located in the third area C. At least one first member 825 and at least one second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically or asymmetrically arranged relative to the second sound generating module 1400. For example, the first member 825 may be located above or below the second member 827 relative to the second sound generating module 1400. Since the first member 825 and the second member 827 may control the transmission of waves or vibrations to the first area L and / or the second area R, the sound of the middle vocal cords and the high vocal cords may be improved. Moreover, the sound of the low vocal cords or the sound of the low-middle vocal cords may be improved by the second sound generating module 1400. For example, the second sound generating module 1400 may be a woofer. Therefore, a display device in which the sound of the low-pitched vocal cords or the low-middle pitch vocal cords may be further improved and the sound of the low-middle-high pitch vocal cords may be further improved may be provided.

[0315] Reference Fig.14I , references will be omitted Fig.14E The first member 825 and the second member 827 may be located in the third area C corresponding to the central area of ​​the display panel 100. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically arranged relative to the sound generating modules 1200 and 1200'. For example, the first member 825 and the second member 827 may be located on the same line as the 1-1 sound generating module 1200 relative to the 1-1 sound generating module 1200. The first member 825 and the second member 827 may be asymmetrically arranged relative to the sound generating modules 1200 and 1200'. For example, relative to the 1-1 sound generating module 1200, the first member 825 may be located above the 1-1 sound generating module 1200, and the second member 827 may be located below the 1-1 sound generating module 1200. The first member 825 and the second member 827 may control the transmission of waves or vibrations between the second partition 1700' and the third partition 1700" to the first region L and / or the second region R. Therefore, a display device in which the sound of the low-pitched vocal cords may be further improved and the sound of the low-middle-high-pitched vocal cords may be further improved may be provided.

[0316] Reference Fig.14JIn the example of, the second sound generating module 1400 may be located in the third area C. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically or asymmetrically arranged relative to the second sound generating module 1400. For example, the first member 825 may be located above or below the second member 827 relative to the second sound generating module 1400. Therefore, since the first member 825 and the second member 827 may control the transmission of waves or vibrations to the first area L and / or the second area R, the sound of the middle-high pitch vocal cords may be improved. Moreover, the sound of the low-pitched vocal cords or the low-middle pitch vocal cords may be improved by the second sound generating module 1400. For example, the second sound generating module 1400 may be a woofer. Therefore, a display device in which the sound of the low-pitched vocal cords or the low-middle pitch vocal cords may be further improved and the sound of the low-middle-high pitch vocal cords may be further improved may be provided.

[0317] FIG. 15A to FIG. 15J An example of a sound generating module and a partition in a display device according to an exemplary embodiment of the present disclosure is shown.

[0318] Reference 9A to 9C The first separator 1700, the second separator 1700' and the third separator 1700" described in the example of FIG. 15A to FIG. 15J The example is basically similar to that of FIG. 1 , and repeated description may be omitted. FIG. 14A to FIG. 14J The examples are the same as those described, so repeated descriptions will be omitted or provided briefly.

[0319] Reference FIG. 15A to FIG. 15J For example, the rear surface of the display panel 100 may include a first area L, a second area R, and a third area C. The first area L may be a left area of ​​the rear surface of the display panel 100, the second area R may be a right area of ​​the rear surface of the display panel 100, and the third area C may be a central area of ​​the rear surface of the display panel 100.

[0320] Reference Fig.15A , Fig. 15B , Fig.15D , Fig.15E , Figure 15G and Fig.15I For example, the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400' may be located in the first area L and the second area R, respectively. For example, the 2-1st sound generating module 1400 may be located in the first area L of the rear surface of the display panel 100, and the 2-2nd sound generating module 1400' may be located in the second area R of the rear surface of the display panel 100.

[0321] Reference Fig. 15C , Fig.15F , Fig.15H and Fig.15J For example, the 2-1st sound generating module 1400 and the 2-2nd sound generating module 1400' may be located in the first region L and the second region R, respectively. The first sound generating module 1200 may be located in the third region C.

[0322] Reference Fig.15A In the example of the present invention, the pad portion 821, the second pad portion 822, and the bent portions 712 and 713 can reduce the reduction in sound pressure level caused by the standing waves generated in the vertical direction of the sound generating modules 1400 and 1400'. Therefore, a display device can be provided in which the sound of the low-pitched vocal cord or the low-middle-pitched vocal cord can be further improved and the sound of the different low-middle-high-pitched vocal cords can be further improved.

[0323] Reference Fig. 15B In the example of the present invention, the pad portion 821, the second pad portion 822, and the bent portions 712 and 713 can reduce the reduction in sound pressure level caused by the standing waves generated in the vertical direction of the sound generating modules 1400 and 1400'. Therefore, a display device in which the sound of the low-pitched vocal cords can be further improved and the sound of the low-middle-high-pitched vocal cords can be further improved can be provided.

[0324] Reference Fig. 15C In the example of the present invention, the pad portion 821, the second pad portion 822, and the bent portions 712 and 713 can reduce the reduction in sound pressure level caused by the standing waves generated in the vertical direction of the sound generating modules 1400 and 1400'. Therefore, a display device in which the sound of the middle-high tone vocal cords can be further improved and the sound of the low-middle-high tone vocal cords can be further improved can be provided.

[0325] Reference Fig.15D and Fig.15E In the example of , the pad portion 821, the second pad portion 822, the third pad portion 823, the fourth pad portion 824 and the bent portions 712 and 713 can reduce the reduction in sound pressure level caused by the standing wave generated in the vertical direction of the sound generating modules 1400 and 1400', and the vibration can be transmitted to both sides, so that the sound output characteristics can be improved. Fig.15D In the example of , a display device can be provided in which the sound of a low-pitched vocal band or a low-middle-pitched vocal band can be further improved and the sound of a different low-middle-high-pitched vocal band can be further improved. Fig.15E In the example, a display device can be provided in which the sound of the low-pitched vocal range can be further improved and the sound of the low-middle-high-pitched vocal range can be further improved.

[0326] Reference Fig.15F In the example of the present invention, the pad portion 821, the second pad portion 822, the third pad portion 823, the fourth pad portion 824 and the bent portions 712 and 713 can reduce the reduction in sound pressure level caused by the standing waves generated in the vertical direction of the sound generating modules 1400 and 1400'. Therefore, a display device can be provided in which the sound of the low-pitched vocal cord and the middle-high-pitched vocal cord can be further improved and the sound of the low-medium-high-pitched vocal cord can be further improved.

[0327] Reference Figure 15G For example, at least one first member 825 and at least one second member 827 may be located in the third area C corresponding to the central area of ​​the display panel 100 . For example, at least one or more members may be located on at least one side of the second partition 1700' and the third partition 1700", and may be located in the third area C. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically or asymmetrically arranged relative to the 2-1st sound generating module 1400. For example, the first member 825 may be located above or below the second member 827 relative to the 2-1st sound generating module 1400. The first member 825 and the second member 827 may control the transmission of waves or vibrations between the second partition 1700' and the second partition 1700' to the first area L and / or the second area R. Therefore, a display device in which the sound of the low-pitched vocal cords can be further improved and the sound of the low-middle-high-pitched vocal cords can be further improved can be provided.

[0328] Reference Fig.15H In the example of, the first sound generating module 1200 may be located in the third area C. At least one first member 825 and at least one second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically or asymmetrically arranged relative to the first sound generating module 1200. For example, the first member 825 may be located above or below the second member 827 relative to the first sound generating module 1200. Therefore, because the first member 825 and the second member 827 may control the transmission of waves or vibrations to the first area L and / or the second area R of the display panel 100, the sound of the low-pitched vocal cord or the low-medium-pitched vocal cord may be improved. Moreover, the sound of the low-pitched vocal cord and the medium-high-pitched vocal cord may be improved by the first sound generating module 1200. Therefore, a display device in which the sound of the low-pitched vocal cord and the medium-high-pitched vocal cord may be further improved and the sound of the low-medium-high-pitched vocal cord may be further improved may be provided.

[0329] Reference Fig.15I , references will be omitted Fig.15E The first member 825 and the second member 827 may be located in the third region C, which may be the central region of the display panel 100. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically arranged with respect to the sound generating modules 1400 and 1400'. For example, the first member 825 and the second member 827 may be located on the same line as the 2-1st sound generating module 1400 with respect to the 2-1st sound generating module 1400. The first member 825 and the second member 827 may be asymmetrically arranged with respect to the sound generating modules 1400 and 1400'. For example, with respect to the 2-1st sound generating module 1400, the first member 825 may be located above the 2-1st sound generating module 1400, and the second member 827 may be located below the 2-1st sound generating module 1400. The first member 825 and the second member 827 may control the transmission of waves or vibrations between the second partition 1700' and the third partition 1700" to the first area L and / or the second area R. Therefore, a display device in which the sound of the low-pitched vocal cords can be further improved and the sound of the low-middle-high-pitched vocal cords can be further improved can be provided.

[0330] Reference Fig.15J In the example of, the first sound generating module 1200 may be located in the third area C. The first member 825 and the second member 827 may be located between the third pad portion 823 or the fourth pad portion 824, or may be located between the pad portion 821 or the second pad portion 822. The first member 825 and the second member 827 may be symmetrically or asymmetrically arranged relative to the first sound generating module 1200. For example, the first member 825 may be located above or below the second member 827 relative to the first sound generating module 1200. Therefore, since the first member 825 and the second member 827 may control the transmission of waves or vibrations to the first area L and / or the second area R of the display panel 100, the sound of the low-pitched vocal cord or the middle-high-pitched vocal cord may be improved. Moreover, the sound of the low-pitched vocal cord and the middle-high-pitched vocal cord may be improved by the first sound generating module 1200. Therefore, a display device in which the sound of the low-pitched vocal cord and the middle-high-pitched vocal cord may be further improved and the sound of the low-medium-high-pitched vocal cord may be further improved may be provided.

[0331] The sound generator according to the exemplary embodiment of the present disclosure can be applied to the sound generator arranged in the display device.For example, the display device according to the exemplary embodiment of the present disclosure can be applied to mobile devices, video phones, smart watches, table phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, curved devices, electronic organizers, e-books, portable multimedia players (PMP), personal digital assistants (PDA), MP3 players, mobile medical devices, desktop personal computers (PC), laptop PCs, notebook computers, workstations, navigators, car navigators, signage devices (signage apparatus), game devices, TVs, notebook computers, monitors, cameras, video cameras, car displays and household appliances.If the display device of the present disclosure is applied to mobile devices, a smaller sound generator can be provided, and the sound of the low vocal band to the high vocal band can be output by the piezoelectric sound generator.The sound generator of the present disclosure can be applied to organic light emitting lighting equipment or inorganic light emitting lighting equipment.If the sound generator is applied to lighting equipment, the sound generator can be used as a lamp or lighting device and a speaker.

[0332] The display device according to the exemplary embodiment of the present disclosure can be described as follows.

[0333] According to an embodiment of the present disclosure, a display device may include: a display panel configured to display an image; a supporting member located on a rear surface of the display panel; a sound generator located between the display panel and the supporting member; and a vibration member located between the sound generator and the supporting member, the diameter of the vibration member being greater than or equal to the diameter of the sound generator.

[0334] For example, in the display device according to the embodiment of the present disclosure, it may further include: a vibration transmitting member located between the display panel and the sound generator; and at least one first vibration adjusting member located between the vibration member and the supporting member.

[0335] For example, in the display apparatus according to the embodiment of the present disclosure, the vibration transferring member and the at least one first vibration adjusting member may include different materials.

[0336] For example, in the display device according to the embodiment of the present disclosure, the vibration transmitting member may be located at the center of the sound generator, and a corresponding one of the at least one first vibration adjusting member may be located at both side edges of the sound generator.

[0337] For example, in a display device according to an embodiment of the present disclosure, the vibration transmitting member may be configured to transmit the sound of the high-pitched vocal cords of the sound generator to the display panel, and at least one first vibration adjusting member may be configured to adjust the sound of the low-pitched vocal cords of the sound generator.

[0338] For example, in the display device according to the embodiment of the present disclosure, it may further include: at least one first vibration adjusting member located between the vibration member and the supporting member; and at least one second vibration adjusting member located between the display panel and the vibration member.

[0339] For example, in the display device according to the embodiment of the present disclosure, at least one first adjustment transmission member and at least one second vibration adjustment member may include the same material.

[0340] For example, in the display device according to the embodiment of the present disclosure, a corresponding one of the at least one vibration adjusting member and the at least one second vibration adjusting member may be located at each of both side edges of the sound generator.

[0341] For example, in the display device according to the embodiment of the present disclosure, at least one vibration transmitting member and at least one second vibration adjusting member may be configured to adjust the sound of a low-pitched vocal range of the sound generator.

[0342] For example, in the display device according to the embodiment of the present disclosure, the sound generator may include a piezoelectric sound generator.

[0343] According to an embodiment of the present invention, a display device may include: a display panel configured to display an image; a supporting member located on a rear surface of the display panel; a sound generator located between the display panel and the supporting member; a vibration member located on a rear surface of the sound generator; and at least one first vibration adjustment member located between the vibration member and the supporting member.

[0344] For example, in the display device according to the embodiment of the present disclosure, the diameter of the vibration member may be greater than or equal to the diameter of the sound generator.

[0345] For example, in the display device according to the embodiment of the present disclosure, at least one first vibration adjusting member may be configured to adjust a low-pitched vocal range of the sound generator.

[0346] For example, in the display device according to the embodiment of the present disclosure, a vibration transfer member located between the display panel and the sound generator may be further included.

[0347] For example, in the display device according to the embodiment of the present disclosure, the vibration transfer member may be located at the center of the sound generator, and at least one first vibration adjusting member may be located at both side edges of the sound generator.

[0348] For example, in the display device according to the embodiment of the present disclosure, the vibration transmitting member may be configured as a high-pitched vocal cord of the sound generator, and the at least one first vibration adjusting member may be configured to adjust a low-pitched vocal cord of the sound generator.

[0349] For example, in the display apparatus according to the embodiment of the present disclosure, the vibration transferring member and the at least one first vibration adjusting member may include different materials.

[0350] For example, in the display device according to the embodiment of the present disclosure, at least one second vibration transmitting member located between the display panel and the vibration member may be further included.

[0351] For example, in the display device according to the embodiment of the present disclosure, a corresponding one of at least one first vibration adjusting member and at least one second vibration adjusting member may be located at each of both side edges of the sound generator.

[0352] For example, in the display apparatus according to the embodiment of the present disclosure, at least one first vibration adjusting member and at least one second vibration adjusting member may include the same material.

[0353] For example, in the display device according to the embodiment of the present disclosure, at least one first vibration adjusting member and at least one second vibration adjusting member may be configured to adjust the sound of a low-pitched vocal range of the sound generator.

[0354] According to an embodiment of the present disclosure, a display device may include: a display panel configured to display an image; a supporting member located on a rear surface of the display panel; and a sound generating module, which includes a sound generator, a vibration member located between the sound generator and the supporting member, and at least one first vibration adjusting member located between the vibration member and the supporting member.

[0355] For example, in a display device according to an embodiment of the present disclosure, the sound generating module may include a first sound generating module, which includes a vibration transmitting member located between the display panel and the sound generator; and a second sound generating module, which includes at least one second vibration adjusting member located between the display panel and the vibration member.

[0356] For example, in the display device according to an embodiment of the present disclosure, the rear surface of the display panel may include first, second and third areas, and the first sound generating module or the second sound generating module may be located at each of the first and second areas.

[0357] For example, in the display device according to the embodiment of the present disclosure, it may further include: a first spacer located at an edge of the rear surface of the display panel; and a second spacer located between the first area and the second area.

[0358] For example, in a display device according to an embodiment of the present disclosure, it may also include: a first partition located at the edge of the rear surface of the display panel; a second partition located between the first area and the second area; and at least one bent portion located on at least one edge of the first partition and extending toward the first sound generating module or the second sound generating module.

[0359] For example, in a display device according to an embodiment of the present disclosure, it may also include: a first partition located at the edge of the rear surface of the display panel; a second partition located between the first area and the second area; at least one bent portion located on a first side of the first partition and extending toward the first sound generating module or the second sound generating module; and at least one pad portion located on a second side of the first partition that is perpendicular to the first side or on the second side of the first partition and at least one side of the second partition.

[0360] For example, in a display device according to an embodiment of the present disclosure, it may also include: a first separator located at the edge of the rear surface of the display panel; a second separator located between the first area and the second area; and at least one pad portion located on a second side of the first separator that is perpendicular to the first side or on the second side of the first separator and at least one side of the second separator.

[0361] For example, in a display device according to an embodiment of the present disclosure, the rear surface of the display panel may include a first area, a second area, and a third area, and the first sound generating module may be located in each of the first area and the second area, or the second sound generating module may be located in the third area, or the first sound generating module may be located in each of the first area and the second area.

[0362] For example, in the display device according to an embodiment of the present disclosure, it may further include: a first spacer located at the edge of the rear surface of the display panel; a second spacer located between the first area and the third area; and a third spacer located between the second area and the third area.

[0363] For example, in a display device according to an embodiment of the present disclosure, it may also include: a first partition at the edge of the rear surface of the display panel; a second partition located between the first area and the third area; a third partition located between the second area and the third area; and at least one bent portion located on at least one edge of the first partition and extending toward the first sound generating module or the second sound generating module.

[0364] For example, in a display device according to an embodiment of the present disclosure, it may also include: a first partition located at the edge of the rear surface of the display panel; a second partition located between the first area and the third area; a third partition located between the second area and the third area; at least one bent portion located on a first side of the first partition and extending toward the first sound generating module or the second sound generating module; and at least one pad portion located on a second side perpendicular to the first side of the first partition or on a second side of the first partition and at least one side of the second partition and the third partition.

[0365] For example, in the display device according to the embodiment of the present disclosure, at least one member located on at least one side of the second spacer and the third spacer and located in the third region may be further included.

[0366] For example, in a display device according to an embodiment of the present disclosure, it may also include: a first separator located at the edge of the rear surface of the display panel; a second separator located between the first area and the third area; a third separator located between the second area and the third area; and at least one pad portion located on a second side of the first separator that is perpendicular to the first side or on a second side of the first separator and at least one side of the second separator and the third separator.

[0367] For example, in the display device according to the embodiment of the present disclosure, at least one member located on at least one side of the second spacer and the third spacer and located in the third region may be further included.

[0368] For example, in a display device according to an embodiment of the present disclosure, the rear surface of the display panel may include a first area, a second area, and a third area, the second sound generating module may be located in each of the first area and the second area, and the first sound generating module may be located in the third area, or the second sound generating module may be located in each of the first area and the second area.

[0369] For example, in the display device according to an embodiment of the present disclosure, it may further include: a first spacer located at the edge of the rear surface of the display panel; a second spacer located between the first area and the third area; and a third spacer located between the second area and the third area.

[0370] For example, in a display device according to an embodiment of the present disclosure, it may also include: a first partition located at the edge of the rear surface of the display panel; a second partition located between the first area and the third area; a third partition located between the second area and the third area; and at least one bent portion located on at least one edge of the first partition and extending toward the first sound generating module or the second sound generating module.

[0371] For example, in a display device according to an embodiment of the present disclosure, it may also include: a first partition located at the edge of the rear surface of the display panel; a second partition located between the first area and the third area; a third partition located between the second area and the third area; at least one bent portion located on a first side of the first partition and extending toward the first sound generating module or the second sound generating module; and at least one pad portion located on a second side of the first partition that is perpendicular to the first side or on a second side of the first partition and at least one side of the second partition and the third partition.

[0372] For example, in the display device according to the embodiment of the present disclosure, at least one member located on at least one of the second spacer and the third spacer and located in the third region may be further included.

[0373] For example, in a display device according to an embodiment of the present disclosure, it may also include: a first separator located at the edge of the rear surface of the display panel; a second separator located between the first area and the third area; a third separator located between the second area and the third area; and at least one pad portion located on a second side perpendicular to the first side of the first separator or on the second side of the first separator and at least one side of the second separator and the third separator.

[0374] For example, in the display device according to the embodiment of the present disclosure, at least one member located on at least one side of the second spacer and the third spacer and in the third region may be further included.

[0375] As described above, the display device according to the exemplary embodiment of the present disclosure has at least the following advantages.

[0376] When the display device according to an exemplary embodiment of the present disclosure includes a sound generator for vibrating the display panel to generate sound, the sound can be generated so that the sound can travel toward the front surface of the display panel. Therefore, the immersive experience of the viewer who can watch the image of the display device can be improved.

[0377] When the display device according to the exemplary embodiment of the present disclosure includes a sound generator for generating sound by vibrating the display panel, a speaker may not be required. Thus, the design of the complete set and the degree of freedom of speaker arrangement can be improved. When the display device according to the exemplary embodiment of the present disclosure includes a sound generator with a small size, the thickness of the display device can be reduced.

[0378] When the display device according to an exemplary embodiment of the present disclosure includes a sound generator and a vibration member, the sound quality of the sound can be improved, thereby providing a display device with improved sound from low-pitched vocal range to high-pitched vocal range.

[0379] When the display device according to the exemplary embodiment of the present disclosure includes a vibration adjustment member capable of performing an alignment function, the assembly of the display panel and the support member can be improved. When the display device according to the exemplary embodiment of the present disclosure includes a sound generator and at least one vibration transfer member, unnecessary vibration or movement of the sound generator can be avoided, and the flatness of the sound can be improved.

[0380] When the display device according to the exemplary embodiment of the present disclosure includes a sound generator or a vibration transfer member or a vibration adjustment member, a display device with improved sound of a low-pitched vocal band can be provided to output sounds from a low-pitched vocal band to a high-pitched vocal band. When the display device according to the exemplary embodiment of the present disclosure includes a partition between at least one or more sound generating modules on a display panel, the sound can be separated by the partition, and stereo sound can be achieved. Thus, a display device with improved sound output characteristics can be provided.

[0381] When the display device according to an exemplary embodiment of the present disclosure includes a partition between at least one or more sound generating modules on the display panel, at least one or more pad parts may be located on at least one side of the partition. Thus, a display device having improved sound output characteristics can be provided.

[0382] When the display device according to the exemplary embodiment of the present disclosure includes a partition located between at least one or more sound generating modules on the display panel, at least one or more bent portions may be located on at least one side of the partition. Thus, a display device having improved sound output characteristics may be provided.

[0383] When the display device according to an exemplary embodiment of the present disclosure includes a partition located between at least one or more sound generating modules on the display panel, at least one or more pad portions and the bent portion may be located on at least one side of the partition. Thus, a display device having improved sound output characteristics can be provided.

[0384] When the display device according to the exemplary embodiment of the present disclosure includes a partition located between at least one or more sound generating modules on the display panel, at least one or more pad portions may be located on at least one side of the partition, and at least one or more members may be located on at least one side of the partition. Thus, a display device having improved sound output characteristics can be provided.

[0385] Since the display device according to the exemplary embodiment of the present disclosure includes a partition located between at least one or more sound generating modules on the display panel, at least one or more pad portions and bent portions may be located on at least one side of the partition and at least one or more members may be located on at least one side of the partition, thereby providing a display device having improved sound output characteristics.

[0386] It is obvious to those skilled in the art that various modifications and variations can be made to the present disclosure without departing from the technical concept or scope of the present disclosure. Therefore, it is intended that the embodiments of the present disclosure cover modifications and variations of the present disclosure that fall within the scope of the appended claims and their equivalents.

[0387] CROSS-REFERENCE TO RELATED APPLICATIONS

[0388] This application claims priority from Korean Patent Application No. 10-2017-0168632, filed on Dec. 8, 2017, which is hereby incorporated by reference in its entirety.

Claims

1. A sound generation module, the sound generation module comprising: Vibration plate; Vibrating components; a sound generator, the sound generator being located on the vibration member; a vibration transfer member located on the sound generator, the entire front surface of the vibration transfer member being attached to the rear surface of the vibration plate; as well as at least one vibration adjusting member, the at least one vibration adjusting member being located below the vibration member, wherein the vibration transmitting member is located at the center of the sound generator, and each of the at least one vibration regulating member is located at both side edges of the sound generator, and Wherein, the vibration component is located between the at least one vibration adjusting component and the sound generator.

2. The sound generating module according to claim 1, wherein: The vibration transferring member and the at least one vibration adjusting member include different materials.

3. The sound generating module according to claim 1, wherein: The vibration transmitting member is configured to output the sound of the high-pitched vocal range of the sound generator, and the at least one vibration adjusting member is configured to adjust the sound of the low-pitched vocal range of the sound generator.

4. The sound generating module according to claim 1, wherein: The sound generator includes a piezoelectric sound generator.

5. The sound generating module according to claim 1, wherein: The vibration member has a size greater than or equal to that of the sound generator.

6. A sound generation module, the sound generation module comprising: Vibration plate; Vibrating components; a sound generator, the sound generator being located on the vibration member; at least one first vibration regulating member, the at least one first vibration regulating member being located below an edge of the vibration member; as well as at least one second vibration adjusting member, the at least one second vibration adjusting member being located on an edge of the vibration member, Wherein, each of the at least one first vibration regulating component and the at least one second vibration regulating component is located at two side edges of the vibration component, respectively. wherein the at least one first vibration adjusting member and the at least one second vibration adjusting member are disposed on opposite sides of the vibration member, and Wherein, the sound generator is located between the vibration plate and the vibration member, and is separated from the vibration plate by the at least one second vibration adjusting member.

7. The sound generating module according to claim 6, wherein: The at least one first vibration adjusting member and the at least one second vibration adjusting member include a same material.

8. The sound generating module according to claim 6, wherein: The at least one first vibration adjusting member and the at least one second vibration adjusting member are configured to adjust the sound of a low-pitched vocal range of the sound generator.

9. The sound generating module according to claim 6, wherein: The sound generator includes a piezoelectric sound generator.

10. A sound generating device, comprising: Vibration plate; a sound generator, the sound generator being located below the vibration plate; a vibration transfer member located between the sound generator and the vibration plate, the entire front surface of the vibration transfer member being attached to the rear surface of the vibration plate; at least one vibration adjustment member, the at least one vibration adjustment member being located below the sound generator; as well as a vibration member located between the at least one vibration adjusting member and the sound generator, wherein the vibration transmitting member is located at the center of the sound generator, and each of the at least one vibration regulating member is located at both side edges of the sound generator, and Wherein, the at least one vibration adjusting member and the vibration transmitting member are arranged on opposite sides of the sound generator.

11. The sound generating device according to claim 10, wherein: The vibration transferring member and the at least one vibration adjusting member include different materials.

12. The sound generating device according to claim 10, wherein: The at least one vibration adjusting member is located at two edges of the vibration member.

13. The sound generating device according to claim 10, wherein: The vibration member has a size greater than or equal to that of the sound generator.

14. The sound generating device according to claim 10, wherein: The vibration transmitting member is configured to output the sound of the high-pitched vocal range of the sound generator, and the at least one vibration adjusting member is configured to adjust the sound of the low-pitched vocal range of the sound generator.

15. The sound generating device according to claim 10, wherein: The at least one vibration modulating member is configured to modulate a low pitch vocal range of the sound generator.

16. The sound generating device according to claim 10, wherein: The sound generator includes a piezoelectric sound generator.

17. A sound generating device, comprising: Vibration plate; a sound generator, the sound generator being located below the vibration plate; a vibration member located on a rear surface of the sound generator; at least one first vibration regulating member, the at least one first vibration regulating member being located below an edge of the vibration member; as well as at least one second vibration adjusting member, the at least one second vibration adjusting member being on an edge of the vibration member, Wherein, each of the at least one first vibration regulating component and the at least one second vibration regulating component is located at two side edges of the vibration component, respectively. wherein the at least one first vibration adjusting member and the at least one second vibration adjusting member are disposed on opposite sides of the vibration member, and Wherein, the sound generator is located between the vibration plate and the vibration member, and is separated from the vibration plate by the at least one second vibration adjusting member.

18. The sound generating device according to claim 17, wherein: The vibration member has a size greater than or equal to that of the sound generator.

19. The sound generating device according to claim 17, wherein: The at least one first vibration adjusting member and the at least one second vibration adjusting member include a same material.

20. The sound generating device according to claim 17, wherein: The at least one first vibration adjusting member and the at least one second vibration adjusting member are configured to adjust a low pitch vocal range of the sound generator.

21. A sound generating device, the sound generating device comprising: a vibration plate having a first region, a second region, and a third region; at least one of a first sound generating module and a second sound generating module located on a rear surface of the vibration plate, The first sound generating module comprises: Vibrating components; a first sound generator, the first sound generator being located on the vibration member; a vibration transfer member located on the first sound generator, the entire front surface of the vibration transfer member being attached to the rear surface of the vibration plate; and at least one vibration adjusting member, the at least one vibration adjusting member being located below the vibration member, The second sound generating module comprises: a second sound generator; a vibration member located on a rear surface of the second sound generator; at least one first vibration adjusting member, the at least one first vibration adjusting member being located below an edge of the vibration member; and At least one second vibration adjusting member is located on an edge of the vibration member.

22. The sound generating device according to claim 21, wherein: One of the first sound generating module and the second sound generating module is located in each of the first area and the second area.

23. The sound generating device according to claim 21, wherein: The first sound generating module is located in each of the first area and the second area, and the second sound generating module is located in the third area.

24. The sound generating device according to claim 21, further comprising: a first partition, the first partition surrounding the first sound generating module and the second sound generating module; a second partition, the second partition being located between the first area and the third area; as well as A third separator is located between the second area and the third area.

25. The sound generating device according to claim 21, further comprising: a first partition, the first partition surrounding the first sound generating module and the second sound generating module; a second partition, the second partition being located between the first area and the third area; a third partition, the third partition being located between the second area and the third area; as well as At least one bent portion, wherein the at least one bent portion is located on at least one side of the first partition.

26. The sound generating device according to claim 21, further comprising: a first partition, the first partition surrounding the first sound generating module and the second sound generating module; a second partition, the second partition being located between the first area and the third area; a third partition, the third partition being located between the second area and the third area; at least one curved portion, the at least one curved portion being located on a first side of the first partition; as well as At least one pad portion is located on a second side of the first separator that is perpendicular to the first side, or on the second side of the first separator and at least one side of the second separator and the third separator.

27. The sound generating device according to claim 21, further comprising: a first partition, the first partition surrounding the first sound generating module and the second sound generating module; a second partition, the second partition being located between the first area and the third area; a third partition, the third partition being located between the second area and the third area; as well as At least one pad portion is located on one side of the first spacer or on at least one side of the second spacer and the third spacer.

28. The sound generating device according to claim 21, further comprising: a first partition, the first partition surrounding the first sound generating module and the second sound generating module; a second partition, the second partition being located between the first area and the third area; a third partition, the third partition being located between the second area and the third area; at least one first pad portion, the at least one first pad portion being located in the second region and on a first side of the first separator; at least one second pad portion, the at least one second pad portion being located in the first region and on the first side of the first separator; at least one third pad portion, the at least one third pad portion being located on one side of the third separator; as well as At least one fourth pad portion is located on one side of the second separator.

29. The sound generating device according to claim 21, further comprising: a first partition, the first partition surrounding the first sound generating module and the second sound generating module; a second partition, the second partition being located between the first area and the third area; a third partition, the third partition being located between the second area and the third area; at least one first pad portion, the at least one first pad portion being located in the second region and on a first side of the first separator; at least one second pad portion, the at least one second pad portion being located in the first region and on the first side of the first separator; at least one third pad portion, the at least one third pad portion being located on one side of the third separator; at least one fourth pad portion, the at least one fourth pad portion being located on one side of the second separator; at least one first member, the at least one first member being located on one side of the second partition; as well as At least one second member is located on one side of the third partition.

30. The sound generating device according to claim 21, further comprising: a first partition, the first partition surrounding the first sound generating module and the second sound generating module; as well as A second partition is located between the first area and the second area.

31. The sound generating device according to claim 21, further comprising: a first partition, the first partition surrounding the first sound generating module and the second sound generating module; a second partition, the second partition being located between the first region and the second region; as well as At least one bent portion, wherein the at least one bent portion is located on at least one side of the first partition.

32. The sound generating device according to claim 21, further comprising: a first partition, the first partition surrounding the first sound generating module and the second sound generating module; a second partition, the second partition being located between the first region and the second region; at least one curved portion, the at least one curved portion being located on a first side of the first partition; as well as At least one pad portion is located on a second side of the first separator that is perpendicular to the first side, or on the second side of the first separator and at least one side of the second separator.

33. The sound generating device according to claim 21, further comprising: a first partition, the first partition surrounding the first sound generating module and the second sound generating module; a second partition, the second partition being located between the first region and the second region; as well as At least one pad portion is located on a second side of the first separator that is perpendicular to the first side, or on the second side of the first separator and at least one side of the second separator.

34. The sound generating device of claim 21, wherein: The vibration member is configured to transmit the sound of the high-pitched vocal cord of the sound generator to the vibration plate, and At least one or more of the at least one first vibration adjusting member and the at least one second vibration adjusting member is configured to transfer the sound of the low-pitched vocal band of the sound generator to the vibration plate.

Images