Electronic devices

Abstract

An electronic device, the electronic device comprising: a display module having a display panel configured to display an image; a sound generating device, the sound generating device being on the rear surface of the display panel and comprising a first side and a second side perpendicular to the first side; and an adhesive member, the adhesive member being smaller in size than one of the first side and the second side of the sound generating device in a partial area of ​​the sound generating device, wherein the display panel comprises a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side, and wherein a distance from a center of the sound generating device to an end of the first short side of the display panel is 1 / 4 to 1 / 3 of the long side of the display panel.

Description

[0001] This application is a divisional application of the original invention patent application with application number 201911119089.2 (application date: November 15, 2019, invention name: display device). Technical Field

[0002] The present disclosure relates to a display device. Background Art

[0003] The display device can be installed in an electronic product or home appliance (such as a television, a monitor, a notebook computer, a smart phone, a tablet computer, an electronic tablet, a wearable device, a watch phone, a portable information device, a navigation device, a vehicle control display equipment, etc.) and used as a screen for displaying an image. The display device may include a display panel that displays an image and a sound device that outputs sound related to the image.

[0004] Recently, the demand for lighter and thinner display devices has increased, and their screens tend to be enlarged. However, since the display device must have enough space to install sound devices such as speakers for outputting sound, it is difficult to reduce the weight and size of the display device. In addition, since the sound generated by the sound device built into the display device is output in the direction toward the rear surface or side surface of the body of the display device (rather than the front surface of the display panel), the sound does not travel toward the user or viewer who is watching the image in front of the display panel, and the immersion of the viewer watching the image may be disturbed. Summary of the invention

[0005] Therefore, the inventors of the present disclosure recognized the above-mentioned problems and conducted several experiments to examine whether the traveling direction of the sound when viewing an image from the front surface of the display can be the front surface of the display panel and whether the sound quality of the sound can be enhanced. Through multiple experiments, the inventors invented a display device with a novel structure that can generate sound toward the front surface of the display panel and improve the sound.

[0006] 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.

[0007] An aspect of the present disclosure is to provide a display apparatus capable of outputting sound toward the front of a display panel and improving the sound through vibration of the display panel.

[0008] Additional features and aspects will be described in the following description, and in part will be apparent from the description, or may be learned by the practice of the inventive concept provided herein. Other features and aspects of the inventive concept may be realized and obtained by the structures specifically pointed out in the written description or derived therefrom, as well as the claims and the accompanying drawings.

[0009] To achieve these and other aspects of the inventive concept, as implemented and broadly described, a display device includes: a display module having a display panel configured to display an image; a sound generating device on a rear surface of the display panel and including a first side and a second side perpendicular to the first side; and an adhesive member, wherein in a partial area of ​​the sound generating device, a size of the adhesive member is smaller than a size of one of the first side and the second side of the sound generating device.

[0010] On the other hand, a display device includes: a display module having a display panel configured to display an image; a sound generating device, which is on a rear surface of the display panel and includes a first side and a second side perpendicular to the first side; and an adhesive member between the display panel and the sound generating device, the adhesive member including a first side and a second side perpendicular to the first side, wherein a length of the first side of the adhesive member is less than or equal to a length of the first side of the sound generating device, and a length of the second side of the adhesive member is less than or equal to a length of the second side of the sound generating device.

[0011] The display device according to an embodiment of the present disclosure may include a sound generating device that generates sound by vibrating the display panel, thereby generating sound whose traveling direction in the display device is the front side of the display panel. Therefore, the immersion of the viewer viewing the image of the display device can be enhanced.

[0012] The display apparatus according to the embodiment of the present disclosure may provide a sound generating device having improved vibration characteristics by configuring an adhesive member in a partial region of the sound generating device.

[0013] After reviewing the following figures and detailed description, other systems, methods, features and advantages will be or will become apparent to those skilled in the art. All of these additional systems, methods, features and advantages are intended to be included in this specification, within the scope of the present disclosure, and protected by the appended claims. Nothing in this section should be construed as limiting these claims. Other aspects and advantages are discussed below in conjunction with the embodiments of the present disclosure. It should be understood that the foregoing general description and the following detailed description are exemplary and illustrative, and are intended to provide further explanation of the disclosure claimed.

[0014] Note 1. A display device, comprising:

[0015] A display module having a display panel configured to display an image;

[0016] a sound generating device on a rear surface of the display panel and including a first side and a second side perpendicular to the first side; and

[0017] An adhesive member having a size smaller than a size of one of the first side and the second side of the sound generating device in a partial region of the sound generating device.

[0018] Supplement 2. The display device according to Supplement 1, wherein:

[0019] The bonding member is in a central region of the sound generating device.

[0020] Supplement 3. The display device according to Supplement 1, wherein:

[0021] The bonding member has a first side and a second side perpendicular to the first side; and

[0022] The length of the first side of the adhesive member is 0.2 to 1 times the length of the first side of the sound generating device.

[0023] Supplement 4. The display device according to Supplement 1, wherein:

[0024] The bonding member has a first side and a second side perpendicular to the first side; and

[0025] The length of the second side of the adhesive member is 0.2 to 1 times the length of the second side of the sound generating device.

[0026] Supplement 5. The display device according to Supplement 1, wherein:

[0027] The bonding member has a first side and a second side perpendicular to the first side;

[0028] The length of the first side of the bonding member is 0.2 to 1 times the length of the first side of the sound generating device; and

[0029] The length of the second side of the adhesive member is equal to the length of the second side of the sound generating device.

[0030] Supplement 6. The display device according to Supplement 1, further comprising:

[0031] A third bonding member is located at a periphery of the bonding member.

[0032] Supplementary note 7. The display device according to Supplementary note 6, wherein the third adhesive member is provided to surround the adhesive member.

[0033] Supplement 8. The display device according to Supplement 1, further comprising:

[0034] A structure is configured to support the side surfaces and the lower surface of the sound generating device.

[0035] Supplement 9. The display device according to Supplement 8, wherein the structure is formed of a rigid material.

[0036] Supplementary note 10. The display device according to Supplementary note 8, wherein the structure is provided in a partial area of ​​the sound generating device.

[0037] Supplement 11. The display device according to Supplement 8, further comprising:

[0038] A fourth bonding member is between the structure and the sound generating device.

[0039] Supplement 12. The display device according to Supplement 1, wherein:

[0040] The display panel includes a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side; and

[0041] A distance from a center of the sound generating device to an end of the first short side of the display panel is 1 / 4 to 1 / 3 of the long side of the display panel.

[0042] Supplement 13. The display device according to Supplement 1, further comprising:

[0043] a second sound generating device, the second sound generating device being on a rear surface of the display panel and including a first side and a second side perpendicular to the first side; and

[0044] A second adhesive member is between the display panel and the second sound generating device and includes a first side and a second side perpendicular to the first side.

[0045] Note 14. The display device according to Note 13, further comprising:

[0046] A partition is on the rear surface of the display panel and is configured to separate the sounds respectively generated by the sound generating device and the second sound generating device from each other.

[0047] Note 15. The display device according to Note 13, wherein:

[0048] a length of the first side of the second bonding member is 0.2 to 1 times the length of the first side of the second sound generating device; and

[0049] The length of the second side of the second adhesive member is equal to the length of the second side of the second sound generating device.

[0050] Supplement 16. The display device according to Supplement 13, wherein:

[0051] The display panel includes a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side; and

[0052] A distance from a center of the second sound generating device to an end of the second short side of the display panel is 1 / 4 to 1 / 3 of the long side of the display panel.

[0053] Note 17. The display device according to Note 13, wherein:

[0054] The sound generating device is disposed symmetrically to the second sound generating device with respect to a middle portion of the display module.

[0055] Note 18. A display device, comprising:

[0056] A display module having a display panel configured to display an image;

[0057] a sound generating device on a rear surface of the display panel and including a first side and a second side perpendicular to the first side; and

[0058] an adhesive member between the display panel and the sound generating device, the adhesive member comprising a first side and a second side perpendicular to the first side,

[0059] The length of the first side of the adhesive member is less than or equal to the length of the first side of the sound generating device, and the length of the second side of the adhesive member is less than or equal to the length of the second side of the sound generating device.

[0060] Supplement 19. The display device according to Supplement 18, wherein:

[0061] The length of the first side of the bonding member is 0.2 to 1 times the length of the first side of the sound generating device; and

[0062] The length of the second side of the adhesive member is 0.2 to 1 times the length of the second side of the sound generating device.

[0063] Supplement 20. The display device according to Supplement 18, wherein:

[0064] The length of the first side of the bonding member is 0.2 to 1 times the length of the first side of the sound generating device; and

[0065] The length of the second side of the adhesive member is equal to the length of the second side of the sound generating device.

[0066] Note 21. The display device according to Note 18, further comprising:

[0067] A third bonding member is located at a periphery of the bonding member.

[0068] Supplementary note 22. The display device according to Supplementary note 21, wherein the third adhesive member is provided to surround the adhesive member.

[0069] Note 23. The display device according to Note 18, further comprising:

[0070] A structure is configured to support the side surfaces and the lower surface of the sound generating device.

[0071] Supplementary note 24. The display device according to Supplementary note 23, wherein the structure is formed of a rigid material.

[0072] Supplementary note 25. The display device according to Supplementary note 23, wherein the structure is provided in a partial area of ​​the sound generating device.

[0073] Note 26. The display device according to Note 23, further comprising:

[0074] A fourth bonding member is between the structure and the sound generating device.

[0075] Supplement 27. The display device according to Supplement 18, wherein:

[0076] The display panel includes a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side; and

[0077] A distance from a center of the sound generating device to an end of the first short side of the display panel is 1 / 4 to 1 / 3 of the long side of the display panel.

[0078] Supplement 28. The display device according to Supplement 18, further comprising:

[0079] a second sound generating device, the second sound generating device being on a rear surface of the display panel and including a first side and a second side perpendicular to the first side; and

[0080] A second adhesive member is between the display panel and the second sound generating device and includes a first side and a second side perpendicular to the first side.

[0081] Note 29. The display device according to Note 28, further comprising:

[0082] A partition is on the rear surface of the display panel and is configured to separate the sounds respectively generated by the sound generating device and the second sound generating device from each other.

[0083] Note 30. The display device according to Note 28, wherein:

[0084] a length of the first side of the second bonding member is 0.2 to 1 times the length of the first side of the second sound generating device; and

[0085] The length of the second side of the second adhesive member is equal to the length of the second side of the second sound generating device.

[0086] Note 31. The display device according to Note 28, wherein:

[0087] The display panel includes a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side; and

[0088] A distance from a center of the second sound generating device to an end of the second short side of the display panel is 1 / 4 to 1 / 3 of the long side of the display panel.

[0089] Note 32. The display device according to Note 28, wherein:

[0090] The sound generating device is disposed symmetrically to the second sound generating device with respect to a middle portion of the display module. BRIEF DESCRIPTION OF THE DRAWINGS

[0091] The accompanying drawings, which may be included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this application, illustrate embodiments of the disclosure and together with the description serve to explain various principles of the disclosure.

[0092] Figure 1 A display device according to an embodiment of the present disclosure is illustrated.

[0093] Figure 2 is along Figure 1 A cross-sectional view taken along line II' shown in FIG.

[0094] Figure 3 yes Figure 1 Rear view of the display panel shown in .

[0095] Figure 4A and Figure 4BVibration of the sound generating device according to the embodiment of the present disclosure is illustrated.

[0096] FIG. 5A to FIG. 5C The sound generating device and the bonding member according to the embodiment of the present disclosure are illustrated.

[0097] Figure 6 A display device according to an embodiment of the present disclosure is illustrated.

[0098] Figure 7 is along Figure 6 A cross-sectional view taken along line II-II' shown in FIG.

[0099] Figure 8 yes Figure 6 Rear view of the display panel shown in .

[0100] Fig. 9 is a rear view of a display panel according to an embodiment of the present disclosure.

[0101] Fig. 10A and Fig. 10B The sound generating device and the bonding member according to the embodiment of the present disclosure are illustrated.

[0102] Fig.11A and Fig. 11B A sound generating device and structure according to an embodiment of the present disclosure are illustrated.

[0103] Fig. 12A and Fig. 12B A sound generating device and structure according to an embodiment of the present disclosure are illustrated.

[0104] FIG. 13A to FIG. 13C A sound generating device and structure according to an embodiment of the present disclosure are illustrated.

[0105] Fig.14 The sound output characteristics of the sound generating device according to the embodiment of the present disclosure are illustrated.

[0106] Throughout the drawings and detailed description, unless otherwise described, the same drawing reference numerals should be understood to refer to the same elements, features, and structures. The relative sizes and descriptions of these elements may be exaggerated for clarity, illustration, and convenience. DETAILED DESCRIPTION

[0107] Reference will now be made in detail to embodiments of the present disclosure, examples of which are shown in the accompanying drawings. In the following description, when it is determined that a detailed description of a known function or configuration associated with this document unnecessarily obscures the main points of the inventive concept, its detailed description will be omitted. The described progression of processing steps and / or operations is an example; however, the order of steps and / or operations is not limited to the order set forth herein, and may be changed as known in the art, except for steps and / or operations that must occur in a particular order. Similar reference numerals always represent similar elements. The names of the various elements used in the following description are selected only for ease of writing the specification and may therefore be different from the names of those elements used in the actual product.

[0108] The advantages and features of the present disclosure and methods for implementing the same will become clear through the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments are provided to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. In addition, the present disclosure is limited only by the scope of the claims.

[0109] The shapes, sizes, ratios, angles and quantities disclosed in the drawings used to describe the embodiments of the present disclosure are merely examples, and therefore the present disclosure is not limited to the illustrated details. In the following description, when a detailed description of a related known function or configuration is determined to be unnecessary to obscure the main points of the present disclosure, the detailed description of such known function or configuration may be omitted. When the terms "including", "having" and "comprising" described in this specification are used, another component may be added unless a more restrictive term such as "only" is used. Unless otherwise specified, a term in the singular may include a plural form.

[0110] When explaining an element, the element is interpreted as including an error or tolerance range even in the case where there is no explicit description of such error or tolerance range.

[0111] When describing a positional relationship, when the positional relationship between two components is described as, for example, "on," "above," "below," and "next to," one or more other components may be disposed between the two components, unless more restrictive terms such as "just" or "directly" are used.

[0112] When describing temporal relationships, for example, when the time order is described as "after," "subsequently," "next," and "before," discontinuous situations may be included unless more restrictive terms such as "just," "immediately," or "directly" are used.

[0113] It should be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element without departing from the scope of the present disclosure.

[0114] When describing the elements of the present disclosure, terms such as "first", "second", "A", "B", "(a)", "(b)" and the like may be used. These terms are used only to distinguish the corresponding elements from other elements, and the nature, order, or preference level of the corresponding elements should not be limited by these terms. It should be understood that when an element or layer is referred to as being "on" or "connected to" another element or layer, it can be directly on or directly connected to another element or layer, or there can be intermediate elements or layers. In addition, it should be understood that when one element is disposed above or below another element, this can indicate a situation where the elements are disposed in direct contact with each other, but can indicate that the elements are disposed not in direct contact with each other.

[0115] The term "at least one" should be understood to include any and all combinations of one or more of the associated listed items. For example, the meaning of "at least one of the first, second, and third items" means the combination of all items proposed from two or more of the first, second, and third items as well as the first, second, or third item.

[0116] In the description of the embodiments, when a structure is described as being located "on or over" or "under or below" another structure, this description should be interpreted as including a case where the structures are in contact with each other and a case where a third structure is disposed therebetween. The size and thickness of each element shown in the drawings are given only for the convenience of description, and the embodiments of the present disclosure are not limited thereto unless otherwise specified.

[0117] The features of the various embodiments of the present disclosure may be partially or entirely connected or combined with each other, and may interoperate and be driven technically differently from each other as can be fully understood by those skilled in the art. The embodiments of the present disclosure may be performed independently of each other, or may be performed together in a mutually dependent relationship.

[0118] In the present disclosure, examples of display devices may include narrow sense display devices including a display panel and a driver for driving the display panel, such as an organic light emitting display (OLED) module or a liquid crystal module (LCM). In addition, as a complete product (or final product) including an LCM or an OLED module, examples of display devices may include complete sets (or complete sets of equipment) or complete sets of electronic devices such as notebook computers, TVs, computer monitors, equipment including automotive equipment or another type of equipment for vehicles, or mobile electronic devices such as smart phones or electronic tablets.

[0119] Therefore, in the present disclosure, examples of the display device may include a narrow-sense display device itself such as an LCM or an OLED module, and a complete device as a final consumer device or an application product including the LCM or the OLED module.

[0120] In some embodiments, an LCM or OLED module including a display panel and a driver may be referred to as a narrow display device, and an electronic device as a final product including the LCM or OLED module may be referred to as a complete set of equipment. For example, a narrow display device may include a display panel such as an LCD or an OLED and a source printed circuit board (PCB) as a controller for driving the display panel. The complete set of equipment may also include a complete set of PCBs, which are complete set of controllers electrically connected to the source PCBs to control the complete set of equipment as a whole.

[0121] The display panel applied to the embodiment of the present disclosure may 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 a specific display panel that is vibrated by the sound generating device according to the embodiment of the present disclosure to output sound. In addition, the shape or size of the display panel applied to the display device according to the embodiment of the present disclosure is not limited.

[0122] 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 in a plurality of pixel areas respectively defined by the intersection of the gate lines and the data lines. In addition, the display panel may include an array substrate including a thin film transistor (TFT) as a switching element for adjusting the light 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 between the array substrate and the upper substrate.

[0123] 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 areas defined by the intersection of the gate lines and the data lines. In addition, the display panel may include an array substrate, an organic light emitting device layer on the array substrate, and an encapsulation substrate arranged on the array substrate to cover the organic light emitting device layer, the array substrate including a TFT, which is an element for selectively applying a voltage to each pixel. The encapsulation substrate may protect the TFT and the organic light emitting device layer from external impacts, and may prevent water or oxygen from penetrating into the organic light emitting device layer. In addition, the layer arranged on the array substrate may include an inorganic light emitting layer (e.g., a nano-sized material layer, quantum dots, etc.). As another example, the layer arranged on the array substrate may include a micro light emitting diode.

[0124] The display panel may further include a backing such as a metal plate attached to the display panel. However, the embodiment is not limited to the metal plate, and the display panel may include another structure.

[0125] In the present disclosure, a display panel may be applied to a vehicle as a user interface module such as a central control panel of a car. For example, the display panel may be disposed between passengers sitting on two front seats so that vibrations of the display panel are transmitted to the interior of the vehicle. Thus, the audio experience in the vehicle is improved compared to a case where a speaker is disposed on the inner side of the vehicle.

[0126] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings. In the following description, when a detailed description of a related known function or configuration is determined to be unnecessary to obscure the present disclosure, the detailed description may be omitted. In addition, for ease of description, the scale of each element shown in the accompanying drawings is different from the actual scale, and therefore, is not limited to the scale shown in the accompanying drawings.

[0127] Figure 1 A display device according to an embodiment of the present disclosure is illustrated. Figure 2 is along Figure 1 A cross-sectional view taken along line II' shown in FIG. Figure 3 yes Figure 1 Rear view of the display panel shown in .

[0128] Reference Figures 1 to 3 , the display apparatus 10 according to an embodiment of the present disclosure may include a display module 100 , a supporting member 300 , and a sound generating device 400 .

[0129] The display module 100 may include a display panel 110. The display panel 110 that displays an image (e.g., an electronic image or a digital image) may be implemented as any type of display panel, such as a liquid crystal display panel, an organic light emitting diode (OLED) display panel, an electroluminescent display panel, etc. The display panel 110 may vibrate according to the vibration of the sound generating device 400, and output sound in a direction toward the front of the display panel 110. The sound generating device 400 may use the display panel 110 as a vibrating diaphragm to generate sound. The sound generating device may be represented as an actuator, an exciter, or a transducer, but is not limited thereto. For example, the sound generating device 400 may be a sound device that outputs sound according to an electrical signal.

[0130] For example, the display panel 110 may be a light-emitting display panel or a flexible light-emitting display panel, but is not limited thereto. The display panel 110 may include a pixel array substrate having a pixel array layer including a plurality of pixels and an encapsulation layer for encapsulating the pixel array.

[0131] For example, depending on the structure of the pixel array layer including the anode, the cathode and the organic compound layer, the display panel 110 may display an image according to a top emission type, a bottom emission type, or a bidirectional emission type. The top emission type may display an image by emitting visible light generated in the pixel array layer to the front side of the base substrate, and the bottom emission type may display an image by emitting visible light generated in the pixel array layer to the rear side of the base substrate. The bidirectional emission type may display an image by emitting visible light generated in the pixel array layer to the front and rear sides of the base substrate.

[0132] A plurality of pixels may be respectively arranged in a pixel area set by a pixel driving line. Each of the plurality of pixels may include a pixel circuit having at least two thin film transistors (TFTs) and at least one capacitor and a light emitting device that emits light by a current provided from the pixel circuit. For example, the light emitting device may include an organic light emitting layer or a quantum dot light emitting layer, but is not limited thereto. As another example, the light emitting device may include a micro light emitting diode (LED), but is not limited thereto.

[0133] The encapsulation layer can protect the TFT, the light-emitting device, etc. from external impact and prevent moisture from penetrating into the light-emitting device. The encapsulation layer can be replaced by an encapsulation substrate attached to the pixel array substrate via a filler surrounding the pixel array. When the filler is formed as a transparent filler, the encapsulation substrate can be a transparent encapsulation substrate.

[0134] The display module 100 according to an embodiment of the present disclosure may further include a touch panel 130. The touch panel 130 may include a touch electrode layer on the display panel 110 and having touch electrodes for sensing a user's touch on the display module 100. The touch electrode layer may sense a change in capacitance of the touch electrodes according to the user's touch. For example, a mutual capacitance type in which a plurality of touch drive electrodes and a plurality of touch sensing electrodes cross each other or a self-capacitance type in which only a plurality of touch sensing electrodes are arranged may be applied, and an adhesive layer may be provided on an upper surface or a lower surface of the touch electrode layer to adhere and fix the touch electrode layer to an upper component or a lower component.

[0135] The display module 100 according to an embodiment of the present disclosure may further include a polarizing film 150 on the touch panel 130. The polarizing film 150 may be attached to the upper surface of the touch panel 130 via a film attaching member. The polarizing film may change external light reflected by a TFT and / or a pixel driving line disposed on a pixel array substrate into a circular polarization state, thereby improving visibility and contrast of the display panel 110. The polarizing film 150 may be between an encapsulation layer of the display panel 110 and the touch panel 130.

[0136] The display module 100 may further include a barrier layer interposed between the encapsulation layer of the display panel 110 and the touch panel 130. The barrier layer may prevent moisture or the like from penetrating toward the pixel array.

[0137] The display module 100 may further include a color filter layer on an upper surface of the encapsulation layer of the display panel 110. The color filter layer may overlap each of the plurality of pixels and include a wavelength that allows only a color set in each of the plurality of pixels to be transmitted therethrough.

[0138] The support member 300 may accommodate the display module 100. Here, in the present disclosure, the support member 300 may be expressed as a "cover bottom", "board bottom", "back cover", "base frame", "metal frame", "middle frame", "metal chassis", "chassis base", "m chassis", "housing", etc. Therefore, the support member 300 may include any type of frame or plate-like structure on the rear surface of the display device as a support structure for supporting the display panel 110.

[0139] For example, the support member 300 may include a support member rear surface portion 310 and a support member side surface portion 330. The support member rear surface portion 310 may be on the rear surface of the display module 100 to cover the rear surface of the display module 100. For example, the support member rear surface portion 310 may cover the circuit accommodating space in the rear surface of the display module 100. For example, the support member rear surface portion 310 of the support member may be formed of the same material as the cover window 700 or may be formed of a glass material different from the cover window 700. For example, the support member rear surface portion 310 may be a rear surface cover, but is not limited thereto. For example, the support member rear surface portion 310 may be constructed separately from the support member side surface portion 330.

[0140] The support member side surface portion 330 may surround each side surface of the display module 100 to have a display accommodating space in which the display module 100 is accommodated. The support member side surface portion 330 may be formed in a frame shape or a rounded shape, but is not limited thereto. For example, each side surface of the support member may be rounded to have a constant radius of curvature, thereby improving the aesthetics of the display device.

[0141] The supporting member side surface portion 330 may include a first side surface 331, a second side surface 332, a third side surface 333, and a fourth side surface 334 of the supporting member 300. The first side surface 331, the second side surface 332, the third side surface 333, and the fourth side surface 334 of the supporting member 300 may provide an accommodation space for accommodating the display module 100. For example, the first side surface 331, the second side surface 332, the third side surface 333, and the fourth side surface 334 of the supporting member 300 may provide a circuit receiving space for accommodating a peripheral circuit (including a circuit component of a driving circuit unit, a battery, etc.) of an electronic device.

[0142] The first side surface 331 of the support member may be parallel to the first length direction X of the display device. For example, the first side surface 331 of the support member may be disposed perpendicular to the first side surface or the first long side of the support member rear surface portion 310. The first side surface 331 of the support member may wrap or surround the first side surface or one horizontal side of the display module 100.

[0143] The second side surface 332 of the support member may be parallel to the first side surface 331 of the support member. For example, the second side surface 332 of the support member may be disposed perpendicular to the second side surface or the second long side of the support member rear surface portion 310. The second side surface 332 of the support member may wrap or surround the second side surface or another horizontal side of the display module 100.

[0144] The third side surface 333 of the support member may be parallel to the second length direction Y of the display device intersecting the first length direction X. For example, the third side surface 333 of the support member may be disposed perpendicular to the third side surface or the first short side of the support member rear surface portion 310. The third side surface 333 of the support member may wrap or surround the third side surface or one vertical side of the display module 100.

[0145] The fourth side surface 334 of the support member may be parallel to the third side surface 333 of the support member. For example, the fourth side surface 334 of the support member may be disposed perpendicular to the fourth side surface or the second short side of the support member rear surface portion 310 of the support member. The fourth side surface 334 of the support member may wrap or surround the fourth side surface or another vertical side of the display module 100.

[0146] The sound generating device 400 may be on the rear surface of the display module 100 (for example, on the rear surface of the display panel 110), and may vibrate the display module 100 according to the vibration driving signal. Therefore, the sound generating device 400 may output sound in the front direction Z of the display panel 110 according to the vibration of the display panel 110.

[0147] The support member 300 according to an embodiment of the present disclosure may further include a vibration element exposure portion on a support member side surface portion 330 (e.g., a third side surface 333) of the support member. For example, the vibration element exposure portion may protrude from the support member side surface portion 330 of the support member and may serve as the periphery of the sound generating device 400. Therefore, the sound generating device 400 attached to the rear surface of the display module 100 may be exposed to the outside through the vibration element exposure portion. A portion of the lower portion of the sound generating device 400 may be inserted or accommodated in the vibration element exposure portion. The vibration element exposure portion may ensure a vibration space for the sound generating device 400 to vibrate on the display module 100, so as to make the display device thinner and assist in the arrangement of the sound generating device 400. If the distance between the support member rear surface portion 310 and the rear surface of the display module 100 is greater than the vibration space, the vibration element exposure portion may be omitted.

[0148] The vibration generating element of the sound generating device 400 may include a piezoelectric material layer having a piezoelectric effect and an electrode located at the edge or periphery of the piezoelectric material layer. In another example, the electrode may be on the upper surface and / or lower surface of the piezoelectric material layer. The electrode may be formed of an opaque metal material having relatively low resistance and excellent heat dissipation characteristics. However, the present disclosure is not limited thereto, and depending on the circumstances, the electrode may be formed of a transparent conductive material or a conductive polymer material. Since the vibration generating element includes a piezoelectric material layer, it may be expressed as a "piezoelectric element".

[0149] The piezoelectric material layer may include a piezoelectric material that generates vibrations by an electric field. The piezoelectric material may have such characteristics that when pressure or distortion is applied to the crystal structure due to an external force, a potential difference is caused due to dielectric polarization based on a change in the relative positions of positive (+) ions and negative (-) ions, and vibrations are generated by an electric field according to a reversely applied voltage.

[0150] The vibration generating element of the sound generating device 400 may include a piezoelectric material of a polymer material, a piezoelectric material of a thin film material, a piezoelectric material of a composite material, or a piezoelectric material of a single crystal ceramic or a polycrystalline ceramic. The piezoelectric material of a polymer material may include polyvinylidene fluoride (PVDF), P (VDF-TrFe) or P (VDFTeFE). The piezoelectric material of a thin film material may include zinc oxide (ZnO), cadmium sulfide (CdS) or aluminum nitride (AlN). The piezoelectric material of a composite material may include lead zirconate titanate (PZT)-PVDF, PZT-silicone rubber, PZT-epoxy resin, PZT-foam polymer, or PZT-foam polyurethane. The piezoelectric material of a single crystal ceramic may include α-aluminum phosphate (α-AlPO4), α-silicon oxide (α-SiO2), lithium niobate (LiNbO3), terbium molybdate (Tb2(MoO4)3), lithium borate (or lithium tetraborate) (Li2B4O7) or zinc oxide (ZnO). The piezoelectric material of the polycrystalline ceramic may include PZT, PT, PZT composite perovskite, or barium titanate oxide (BaTiO 3 ). The embodiments of the present disclosure are not limited to these materials.

[0151] The vibration generating element of the sound generating device 400 may have a shape such as a rectangle, a square, a rhombus, and a parallelogram, but is not limited thereto. For example, the vibration generating element may be formed of a circular shape, an oval shape, or any other shape. The oval shape may include an elliptical shape, a rectangular shape with rounded corners, or a non-circular curved shape having a width different from its height, but is not limited thereto.

[0152] In order to protect the vibration generating element of the sound generating device 400, a protective member may be further provided. The protective member may be formed to have a size larger than or the same size as the size of the sound generating device as the vibration generating element, and may be attached to the rear surface of the sound generating device as the vibration generating element. The protective member may prevent damage to the sound generating device due to electrical shock and / or physical shock such as static electricity. For example, the sound generating device 400 may be damaged by static electricity generated in the display module 100 such as a panel driving circuit or introduced from the outside, and may be damaged by physical contact with the display module 100 due to pressing on the display module 100. Therefore, the protective member may be on the rear surface of the sound generating device 400, thereby protecting the sound generating device 400 from static electricity by blocking the static electricity transmitted to the sound generating device 400 through the display module 100 and protecting the sound generating device 400 from physical shocks applied to the sound generating device 400 from the display module 100. The protective member may include, but is not limited to, a single-sided insulating tape or an insulating single-sided foam tape having an adhesive layer attached to the rear surface of the sound generating device 400. For example, the protection member may be a polyethylene terephthalate (PET) insulation tape or a polyvinyl chloride (PVC) insulation tape, but is not limited thereto.

[0153] The display device according to the embodiment of the present disclosure may further include a driving circuit unit 600 and a cover window 700 .

[0154] The driving circuit unit 600 may be in the circuit accommodating space in the support member 300, and may be connected to the display panel 110 and the sound generating device 400. The driving circuit unit 600 may include a panel driving circuit and a sound processing circuit.

[0155] The panel driving circuit may be mounted on the display panel 110 or the circuit board to display an image on the display panel 110. The panel driving circuit may be connected to a pad portion on a pixel array substrate of the display panel 110 and provide a driving signal and a data signal to a pixel driving line, thereby displaying an image on each pixel.

[0156] The sound processing circuit may generate an audio signal based on an audio source, and amplify the audio signal to generate a vibration driving signal. The sound generating device 400 may be vibrated according to the generated vibration driving signal.

[0157] The cover window 700 may be coupled or connected to the support member 300 to support the display module 100. The cover window 700 may be formed of a glass or reinforced glass material. For example, the cover window 700 may have sapphire glass or gorilla glass or a combination thereof. The cover window 700 may be attached to the front surface of the display module 100 via an adhesive member. The adhesive member may be, but is not limited to, an optically clear adhesive (OCA), an optically clear resin (OCR), or a pressure sensitive adhesive (PSA).

[0158] The cover window 700 may cover the non-display area except the display area of ​​the display module 100. For example, the cover window 700 may include a transparent area overlapping with the display area of ​​the display module 100, a light shielding area overlapping with the non-display area of ​​the display module 100, and a design layer disposed in the light shielding area to cover the non-display area of ​​the display module 100. The cover window 700 may be a support member, a window cover, etc., but is not limited thereto.

[0159] The sound generating device 400 may be attached or coupled to the rear surface of the display panel 110 via the adhesive member 403. If the adhesive member 403 is on the entire surface of the sound generating device 400, the compressive tensile force at the central portion of the vibration generating element constituting the sound generating device 400 and the compressive tensile force at the edge portion are opposite to each other, making it difficult to achieve the desired sound characteristics. This will refer to Figure 4A and Figure 4B to describe.

[0160] Figure 4A and Figure 4B Vibration of the sound generating device according to the embodiment of the present disclosure is illustrated.

[0161] The sound generating device 400 may include a unimorph vibration generating element or a bimorph vibration generating element. The unimorph vibration generating element or the bimorph vibration generating element may include, for example, two layers, four layers, eight layers, or sixteen layers, but is not limited thereto. Figure 4A and Figure 4B , the sound generating device 400 is a bimorph vibration generating element including an upper layer and a lower layer, and a case where the sound generating device 400 is attached to the entire surface of the display panel by an adhesive member will be described as an example. Figure 4A The upper layer is shown, and Figure 4B The lower layer is shown. Figure 4A and Figure 4B, when the upper layer is stretched (C1), the lower layer is compressed (C4), and conversely when the upper layer is compressed (C2), the lower layer moves in the tension C3 direction. The sound generating device can vibrate according to the repetition of stretching and compression. It can be seen that when the upper layer is stretched (C1) and the lower layer is compressed (C4) relative to the initial position of the vibration generating element of the sound generating device that does not move or vibrates (for example, relative to the center line CL or the neutral plane), the central area of ​​the vibration generating element rises in the upward direction, and the edge area of ​​the vibration generating element falls in the downward direction. Therefore, when the adhesive member is attached to the entire surface of the sound generating device, the vibration force that pushes the central area of ​​the vibration generating element upward is opposite to the vibration force of the edge area of ​​the vibration generating element, and therefore, the thrust that pushes the central area of ​​the vibration generating element is disturbed by the vibration force of the edge area of ​​the vibration generating element. As a result, it is recognized that the vibration transmission characteristics of the sound generating device deteriorate because the central area of ​​the vibration generating element that significantly generates vibration is affected by the vibration. Therefore, the inventors of the present disclosure conducted various experiments to realize a sound generating device in which the vibration characteristics will not deteriorate. The inventors of the present disclosure have invented a sound generating device having a novel structure in which the vibration characteristics are not deteriorated through various experiments. Figures 1 to 3 to describe.

[0162] Reference Figures 1 to 3 , the sound generating device 400 may be attached or coupled to the rear surface of the display panel 110 via an adhesive member 403. The adhesive member 403 may be in an area where the vibration of the sound generating device 400 occurs significantly. For example, the adhesive member 403 may be located in a partial area of ​​the sound generating device 400. For example, the adhesive member 403 may be located in an area that vibrates in the same direction as the sound generating device 400 or in a central area of ​​the sound generating device 400. Therefore, since the adhesive member 403 is located in a partial area of ​​the sound generating device 400, the vibration at the central area of ​​the sound generating device 400 may be less affected by the vibration at the edge or peripheral area of ​​the sound generating device 400. For example, since the adhesive member is provided in the central area of ​​the sound generating device 400, the influence of the vibration caused by the edge of the sound generating device can be reduced and the vibration of the central area of ​​the sound generating device can be enhanced, so that the vibration characteristics of the sound generating device can be improved. The height of the adhesive member 403 may be set so as not to contact the display panel 110 when the sound generating device 400 vibrates.

[0163] The adhesive member 403 may include a double-sided tape, a double-sided foam tape, a thermosetting adhesive, a light-curable adhesive, and a natural curable adhesive, but is not limited thereto. For example, the thermosetting adhesive may be an epoxy resin, but is not limited thereto. For example, the adhesive member 403 may be formed of polyurethane, polyolefin, and polyethylene, but is not limited thereto. The adhesive member 403 may be an adhesive member or an adhesive, but is not limited thereto.

[0164] Therefore, in order to improve the vibration characteristics of the sound generating device 400, the size of the bonding member 403 may be smaller than the size of the sound generating device 400. The sound generating device 400 may have a first side and a second side perpendicular to the first side. The bonding member 403 may have a first side and a second side perpendicular to the first side. The first side of the sound generating device may correspond to the first side of the bonding member, and the second side of the sound generating device may correspond to the second side of the bonding member. For example, the bonding member and the first side of the sound generating device may be in the width direction, and the bonding member and the second side of the sound generating device may be in the length direction. The width direction and the length direction may be mixed in any combination or interchangeable manner. As another example, the vibration generating element of the sound generating device 400 may have a shape such as a rectangle (e.g., a quadrilateral), a square, a rhombus, and a parallelogram, but is not limited thereto. The bonding member 403 may be arranged corresponding to the shape of the sound generating device. For example, the sound generating device 400 may be a rectangle (e.g., a quadrilateral), and may include a first side and a second side, the second side being arranged adjacent to the first side and bent at a 90-degree angle for arrangement. The angle of the second side does not limit the embodiments of the present disclosure. For example, the adhesive member 403 may be rectangular and may include a first side and a second side, the second side being disposed adjacent to the first side and being bent at an angle of 90 degrees for disposition. The angle of the second side does not limit the embodiments of the present disclosure.

[0165] For example, the length A1 of the first side of the adhesive member 403 may be 0.2 to 1 times the length P1 of the first side of the sound generating device 400. For example, the length A1 of the first side of the adhesive member 403 may be greater than 0.2 to 1 times the length P1 of the first side of the sound generating device 400. For example, the length A2 of the second side of the adhesive member 403 may be 0.2 to 1 times the length P2 of the second side of the sound generating device 400. For example, the length A2 of the second side of the adhesive member 403 may be greater than 0.2 to 1 times the length P2 of the second side of the sound generating device 400.

[0166] For example, the size of the adhesive member 403 may vary according to the length P1 of the first side and the length P2 of the second side of the sound generating device 400, but is not limited thereto. For example, when the length P1 of the first side of the sound generating device 400 is greater than the length P2 of the second side of the sound generating device 400, the length A1 of the first side of the adhesive member 403 may be greater than 0.2 times to less than 0.5 times of the length P1 of the first side of the sound generating device 400. For example, when the length P1 of the first side of the sound generating device 400 is greater than the length P1 of the second side of the sound generating device 400, the length A2 of the second side of the adhesive member 403 may be greater than 0.5 times to 1 times of the length P2 of the second side of the sound generating device 400. For example, when the length P1 of the first side of the sound generating device 400 is less than the length P2 of the second side of the sound generating device 400, the length A1 of the first side of the adhesive member 403 may be greater than 0.5 times to 1 times of the length P1 of the first side of the sound generating device 400. For example, when the length P1 of the first side of the sound generating device 400 is less than the length P2 of the second side of the sound generating device 400, the length A2 of the second side of the adhesive member 403 may be greater than 0.2 times to less than 0.5 times the length P2 of the second side of the sound generating device 400. For example, when the length P1 of the first side of the sound generating device 400 is equal to the length P2 of the second side of the sound generating device 400, the length A1 of the first side of the adhesive member 403 may be greater than 0.4 times to 1 times the length P1 of the first side of the sound generating device 400. For example, when the length P1 of the first side of the sound generating device 400 is equal to the length P2 of the second side of the sound generating device 400, the length A2 of the second side of the adhesive member 403 may be greater than 0.4 times to 1 times the length P2 of the second side of the sound generating device 400.

[0167] The sound generating device 400 may be located at the upper portion of the rear surface of the display panel 110. The display panel 110 may include a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side. For example, the first short side and the second short side may be in the width direction of the display panel 110, and the long side may be in the length direction of the display panel 110. The width direction and the length direction may be mixed in any combination or in an interchangeable manner. For example, the distance d1 between the center of the sound generating device 400 and the end of the first short side of the display panel 110 may be 1 / 4 to 1 / 3 of the long side of the display panel 110. When the sound generating device 400 is disposed on the upper side of the rear surface of the display panel 110, the sound pressure may be further improved compared to when the sound generating device 400 is disposed at the center of the display panel 110.

[0168] FIG. 5A to FIG. 5C The sound generating device and the bonding member according to the embodiment of the present disclosure are illustrated.

[0169] FIG. 5A to FIG. 5C An embodiment in which the adhesive member is attached to the sound generating device is illustrated, but the present disclosure is not limited thereto.

[0170] Reference Figure 5A , illustrates an example in which a length A1 of a first side of the bonding member 403 is 0.3 times a length P1 of a first side of the sound generating device 400 and a length A2 of a second side of the bonding member 403 is 0.5 times a length P2 of a second side of the sound generating device 400 .

[0171] Reference Figure 5B , illustrates an example in which a length A1 of a first side of the bonding member 403 is 0.5 times a length P1 of a first side of the sound generating device 400 and a length A2 of a second side of the bonding member 403 is 1 times a length P2 of a second side of the sound generating device 400 .

[0172] Reference Figure 5C , illustrates an example in which the length A1 of the first side of the adhesive member 403 is 0.25 times the length P1 of the first side of the sound generating device 400 and the length A2 of the second side of the adhesive member 403 is 1 times the length P2 of the second side of the sound generating device 400. Fig.14 Describe the sound output characteristics of these examples.

[0173] Figure 6 A display device according to another embodiment of the present disclosure is illustrated. Figure 7 is along Figure 6 A cross-sectional view taken along line II-II' shown in FIG. Figure 8 yes Figure 6 Rear view of the display panel shown in .

[0174] Reference Figures 6 to 8 The display device 20 according to an embodiment of the present disclosure may include a display module 100, a support member 300, a first sound generating device 400, and a second sound generating device 500. The display module 100 may include a display panel 110. The display module 100, the display panel 110, and the support member 300 are similar to those described above. Figures 1 to 3 Those described are the same, so their descriptions may be omitted or simplified.

[0175] Reference Figures 6 to 8 According to the embodiment of the present disclosure, the display device 20 may further include a second sound generating device 500. Figures 1 to 3 The described sound generating device 400 may be a first sound generating device, and the adhesive member 403 may be a first adhesive member.

[0176] The second sound generating device 500 may be attached or coupled to the rear surface of the display panel 110 via a second adhesive member 503. The second adhesive member 503 may be disposed at a partial region of the second sound generating device 500. For example, since the second adhesive member 503 is in a region vibrating in the same direction as the second sound generating device 500 or in a central region of the second sound generating device 500, the vibration characteristics of the second sound generating device 500 may be improved. The height of the second adhesive member 503 may be set so as not to contact the display panel 110 when the second sound generating device 500 vibrates. The second adhesive member 503 may include a double-sided tape, a double-sided foam tape, a thermosetting adhesive, a light curable adhesive, and a natural curable adhesive, but is not limited thereto. For example, the thermosetting adhesive may be an epoxy resin, but is not limited thereto. For example, the second adhesive member 503 may be formed of polyurethane, polyolefin, and polyethylene, but is not limited thereto. The second adhesive member 503 may be an adhesive member or an adhesive, but is not limited to the term.

[0177] In order to improve the vibration characteristics of the second sound generating device 500, the size of the second bonding member 503 may be smaller than the size of the second sound generating device 500. The second sound generating device 500 may have a first side and a second side perpendicular to the first side. The second bonding member 503 may have a first side and a second side perpendicular to the first side. The first side of the sound generating device may correspond to the first side of the bonding member, and the second side of the sound generating device may correspond to the second side of the bonding member. For example, the bonding member and the first side of the sound generating device may be in the width direction, and the bonding member and the second side of the sound generating device may be in the length direction. The width direction and the length direction may be mixed in any combination or in an interchangeable manner.

[0178] As another example, the vibration generating element of the second sound generating device 500 may have a shape such as a rectangle (e.g., a quadrilateral), a square, a rhombus, and a parallelogram, but is not limited thereto. The second bonding member 503 may be arranged corresponding to the shape of the sound generating device. For example, the second sound generating device 500 may be rectangular and may include a first side and a second side, the second side being disposed adjacent to the first side and being bent at a 90-degree angle for arrangement. For example, the second bonding member 503 may be rectangular and may include a first side and a second side, the second side being disposed adjacent to the first side and being bent at a 90-degree angle for arrangement. The angle of the second side does not limit the embodiments of the present disclosure.

[0179] For example, the length A1 of the first side of the second bonding member 503 may be 0.2 to 1 times the length P1 of the first side of the second sound generating device 500. For example, the length A1 of the first side of the second bonding member 503 may be greater than 0.2 to 1 times the length P1 of the first side of the second sound generating device 500. For example, the length A2 of the second side of the second bonding member 503 may be 0.2 to 1 times the length P2 of the second side of the second sound generating device 500. For example, the length A2 of the second side of the second bonding member 503 may be greater than 0.2 to 1 times the length P2 of the second side of the second sound generating device 500.

[0180] For example, the size of the second adhesive member 503 may vary according to the length P1 of the first side and the length P2 of the second side of the second sound generating device 500, but is not limited thereto. For example, when the length P1 of the first side of the second sound generating device 500 is greater than the length P2 of the second side of the second sound generating device 500, the length A1 of the first side of the second adhesive member 503 may be greater than 0.2 times to less than 0.5 times of the length P1 of the first side of the second sound generating device 500. For example, when the length P1 of the first side of the second sound generating device 500 is greater than the length P2 of the second side of the second sound generating device 500, the length A2 of the second side of the second adhesive member 503 may be greater than 0.5 times to 1 times of the length P2 of the second side of the second sound generating device 500. For example, when the length P1 of the first side of the second sound generating device 500 is less than the length P2 of the second side of the second sound generating device 500, the length A1 of the first side of the second adhesive member 503 may be greater than 0.5 times to less than 1 times of the length P1 of the first side of the second sound generating device 500. For example, when the length P1 of the first side of the second sound generating device 500 is less than the length P2 of the second side of the second sound generating device 500, the length A2 of the second side of the second bonding member 503 may be greater than 0.2 times to less than 0.5 times the length P2 of the second side of the second sound generating device 500. For example, when the length P1 of the first side of the second sound generating device 500 is equal to the length P2 of the second side of the second sound generating device 500, the length A1 of the first side of the second bonding member 503 may be greater than 0.4 times to less than 1 times the length P1 of the first side of the second sound generating device 500. For example, when the length P1 of the first side of the second sound generating device 500 is equal to the length P2 of the second side of the second sound generating device 500, the length A2 of the second side of the second bonding member 503 may be greater than 0.4 times to 1 times the length P2 of the second side of the second sound generating device 500.

[0181] Reference Figure 8, the first sound generating device 400 may be located at the upper portion of the rear surface of the display panel 110. The display panel 110 may include a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side. For example, the first short side and the second short side may be in the width direction of the display panel 110, and the long side may be in the length direction of the display panel 110. The width direction and the length direction may be mixed in any combination or in an interchangeable manner. For example, the distance d1 between the center of the first sound generating device 400 and the end of the first short side of the display panel 110 may be 1 / 4 to 1 / 3 of the long side of the display panel 110. When the first sound generating device 400 is disposed on the upper side of the rear surface of the display panel 110, the sound pressure may be further improved compared to when the first sound generating device 400 is disposed in the center of the display panel 110. The second sound generating device 500 may be located at the lower portion of the rear surface of the display panel 110. For example, a distance d2 between the center of the second sound generating device 500 and the end of the second short side of the display panel 110 may be 1 / 4 to 1 / 3 of the long side of the display panel 110. The second sound generating device 500 may be disposed symmetrically with the first sound generating device 400. For example, the second sound generating device 500 may be disposed symmetrically with the first sound generating device 400 with respect to the middle portion CL1 of the display module 100.

[0182] Fig. 9 is a rear view of a display panel according to another embodiment of the present disclosure.

[0183] Reference Fig. 9 , the display device 30 according to an embodiment of the present disclosure may include a first sound generating device 400 and a second sound generating device 500. The first sound generating device 400 may vibrate the first rear area B1 of the display module 100 according to the vibration driving signal provided from the driving circuit unit 600. The first rear area B1 may be an area between the middle portion CL1 or the rear middle portion of the display module 100 and one end 110a of the display module 100 relative to the first length direction or the long side direction X of the display module 100, or a right rear area. For example, the first rear area B1 may be an edge or peripheral area of ​​the display module 100, or the upper right / left portion of the edge or peripheral area of ​​the display module 100 relative to the length direction or the long side direction X of the display module 100.

[0184] The second sound generating device 500 may vibrate the second rear area B2 of the display module 100 according to the vibration driving signal provided from the driving circuit unit 600. The second rear area B2 may be an area between the middle portion CL1 of the display module 100 and the other end of the display module 100 relative to the first length direction or the long side direction X of the display module 100, or a left rear area. For example, the second rear area B2 may be another edge or peripheral area of ​​the display module 100 or an edge or peripheral area of ​​the left / right portion of the display module 100 relative to the length direction or the long side direction X of the display module 100. The second sound generating device 500 may be disposed symmetrically with the first sound generating device 400. For example, the second sound generating device 500 may be disposed symmetrically with the first sound generating device 400 relative to the middle portion CL1 of the display module 100.

[0185] The display device 30 according to an embodiment of the present disclosure may further include a partition 900. The partition 900 may be located in the rear middle portion CL1 of the display module 100. For example, the partition 900 may be located between the first sound generating device 400 and the second sound generating device 500. For example, the partition 900 may spatially separate or divide the first rear surface area B1 overlapping with the first sound generating device 400 on the rear surface of the display panel 110 from the second rear surface area B2 overlapping with the second sound generating device 500 on the rear surface of the display panel 110, thereby reducing or preventing interference between sounds generated from the first rear area B1 and the second rear area B2, respectively. The partition 900 may spatially separate or divide the first rear surface area B1 and the second rear surface area B2 on the rear surface of the display module 100 (e.g., the display panel 110), thereby preventing interference between sounds generated from each of the first rear surface area B1 and the second rear area B2. For example, with Figure 8 Therefore, the partition 900 can separate the sounds respectively generated by the first sound generating device 400 and the second sound generating device 500, thereby reducing or preventing interference between the sounds, thereby outputting, for example, a 2.0 channel type of sound to the front of the display module 100 according to the vibration of the display module 100.

[0186] The partition 900 may be located between the rear surface of the display module 100 and the support member bottom 310 of the support member 300. The rear surface of the partition 900 may be adhered to the support member rear surface portion 310 of the support member 300 and the front surface of the partition 900 may be adhered to the rear surface of the display module 100, or may be in contact with the rear surface of the display module 100 in a non-contact manner. For example, the partition 900 may include, but is not limited to, single-sided tape, foam pad, double-sided tape, double-sided foam tape, adhesive, and adhesive resin. The partition 900 may be referred to as a "housing" or a "baffle", and is not limited thereto.

[0187] Reference above Figures 6 to 9 The described sound generating device can be applied to the receiver and speaker of the electronic device, but is not limited thereto. The receiver can send the call sound from the electronic device to the ear of the user. For example, when operating as a receiver of an electronic device, etc., the first sound generating device 400 can receive a vibration drive signal from a sound processing circuit. For example, when the first sound generating device is applied to a receiver of an electronic device, etc., the sound can be delivered to the user or the user can receive the sound through the first sound generating device, and therefore, a display device capable of providing an enhanced call sound or sound to the user can be provided. For example, when operating as a speaker of an electronic device, etc., the first sound generating device 400 and the second sound generating device 500 can receive a vibration drive signal from each sound processing circuit. Therefore, the sound can be delivered to the user through the first sound generating device and the second sound generating device. For example, surround sound can be delivered to the user through the first sound generating device and the second sound generating device.

[0188] Fig. 10A and Fig. 10B A sound generating device and an adhesive member according to an embodiment of the present disclosure are shown.

[0189] Fig. 10A is a side view, Fig. 10B is the front view. Figures 1 to 3 describe Fig. 10A and Fig. 10B , and the same can be applied to Figures 6 to 9 .

[0190] Reference Fig. 10A and Fig. 10B , the sound generating device 400 according to the embodiment of the present disclosure may further include a third adhesive member 405 . Figures 1 to 3 Figure 5 to Fig. 9The adhesive member 403 described in the embodiment may be a first adhesive member. Since the first adhesive member 403 of the sound generating device 400 is not attached to the entire surface of the sound generating device 400, the detachment of the sound generating device 400 caused by the reduction of the adhesion area of ​​the sound generating device 400 can be prevented by the third adhesive member 405. For example, the third adhesive member 405 may be located at the periphery of the first adhesive member 403. For example, the third adhesive member 405 may surround the first adhesive member 403. The third adhesive member 405 may assist the attachment of the first adhesive member 403 and may not affect the vibration of the sound generating device 400. The third adhesive member 405 may include a double-sided tape, a double-sided foam tape, a thermosetting adhesive, a light curable adhesive, and a natural curable adhesive, but is not limited thereto. For example, the thermosetting adhesive may be an epoxy resin, but is not limited thereto. For example, the third adhesive member 405 may be formed by polyurethane, polyolefin, and polyethylene, but is not limited thereto.

[0191] As the attachment area or contact area of ​​the sound generating device increases, the firmness or rigidity of the attachment of the sound generating device can be ensured. Since the adhesive member is not attached to the entire surface of the sound generating device, the attachment area or contact area of ​​the sound generating device is reduced, and the sound generating device may be detached due to vibration of the sound generating device or external impact. In order to prevent this, the sound generating device can be fixed to the display panel by tightening bolts, welding, etc., but it has been recognized that there are problems such as process difficulties or increased costs. Therefore, the inventors of the present disclosure have realized a sound generating device with a novel structure, in which a structure is provided to prevent the sound generating device from detaching. This will be described with reference to Figures 11 to 13. This structure can be applied to Figures 1 to 3 and Figure 6 to Figure 1 0.

[0192] Fig.11A and Fig. 11B A sound generating device and structure according to an embodiment of the present disclosure are illustrated.

[0193] Fig.11A is a side view, Fig. 11B This is the front view. Fig.11A and Fig. 11B, the structure 810 may be further located in a partial area of ​​the sound generating device 400. For example, the structure 810 may be on the lower surface and the side surface of the sound generating device 400. For example. The structure 810 may support the lower surface and the side surface of the sound generating device 400. For example, the structure 810 may surround the lower surface and the side surface of the sound generating device 400. The structure 810 may be formed of a material having high rigidity. For example, the structure 810 may be formed of stainless steel, polyethylene terephthalate (PET) and foam tape, but is not limited thereto. The fourth adhesive member 407 may be located between the structure 810 and the sound generating device 400 and between the structure 810 and the display panel 110. The fourth adhesive member 407 may be formed of a double-sided tape, a double-sided foam tape, a thermosetting adhesive, a light curable adhesive and a natural curable adhesive, but is not limited thereto. For example, the thermosetting adhesive may be an epoxy resin, but is not limited thereto. For example, the fourth adhesive member 407 may be formed of polyurethane, polyolefin and polyethylene, but is not limited thereto. Therefore, by further constructing a structure in a partial area of ​​the sound generating device, the bonding area of ​​the sound generating device relative to the display panel can be enhanced, thereby improving the durability of the sound generating device against vibration or external impact and improving the durability of the sound generating device to prevent detachment.

[0194] Fig. 12A and Fig. 12B A sound generating device and structure according to an embodiment of the present disclosure are illustrated.

[0195] Fig. 12A is a side view, Fig. 12B is the front view. For example, Fig. 12A and Fig. 12B The sound generating device is a cantilever beam type sound generating device 430. Fig. 12A and Fig. 12B, the sound generating device 430 may include an anchor 431 and a beam 432. The structure 830 may also be disposed in a partial area of ​​the sound generating device 430. For example, the anchor 431 of the sound generating device 430 and the structure 830 may be further disposed at a partial area of ​​the beam 432. For example, the structure 830 may be further disposed on the lower surface and the side surface of the sound generating device 430. For example, the structure 830 may support the lower surface and the side surface of the sound generating device 430. For example, the structure 830 may surround the lower surface and the side surface of the sound generating device 430. The structure 830 may be formed of a material having high rigidity. For example, the structure 830 may be formed of stainless steel, polyethylene terephthalate (PET) and foam tape, but is not limited thereto. The fourth adhesive member 407 may be disposed between the structure 830 and the sound generating device 430 and between the structure 830 and the display panel 110. The fourth adhesive member 407 may include a double-sided tape, a double-sided foam tape, a thermosetting adhesive, a light-curable adhesive and a natural curable adhesive, but is not limited thereto. For example, the thermosetting adhesive may be epoxy resin, but is not limited thereto. For example, the fourth adhesive member 407 may be formed of polyurethane, polyolefin, and polyethylene, but is not limited thereto. Therefore, by further constructing a structure at a partial area of ​​the sound generating device, the bonding area of ​​the sound generating device relative to the display panel may be enhanced, thereby improving the durability of the sound generating device against vibration or external impact and improving the durability of the sound generating device against detachment.

[0196] FIG. 13A to FIG. 13C A sound generating device and structure according to an embodiment of the present disclosure are illustrated.

[0197] Fig.13A is a side view, Fig. 13B and Fig. 13C is the front view. For example, FIG. 13A to FIG. 13C The sound generating device is a two-end clamped beam type sound generating device 450. FIG. 13A to FIG. 13C , the sound generating device 450 may include an anchor 451 and a beam 452. The anchor 451 may be formed of the same material as the double-sided tape or the beam 452, but is not limited thereto. The structure 850 may be further disposed at a partial area of ​​the sound generating device 450. For example, the anchor 451 and the structure 850 of the sound generating device 450 may be further disposed at a partial area of ​​the beam 452. For example, the structure 850 may be further located on the lower surface and the side surface of the sound generating device 450. For example, the structure 850 may support the lower surface and the side surface of the sound generating device 450. For example, the structure 850 may surround the lower surface and the side surface of the sound generating device 450. Referring to Fig. 13B , two structures 850 may be provided relative to the sound generating device 450. For example, the two structures 850 may be provided to correspond to the anchors 451 of the sound generating device 450. Fig. 13C , the structure 850 may be disposed in a partial area of ​​the sound generating device 450. For example, the structure 850 may cover the anchor 451 and the beam 452 of the sound generating device 450. FIG. 13A to FIG. 13C , the structure 850 can be formed of a material having high rigidity. For example, the structure 850 can be formed of stainless steel, polyethylene terephthalate (PET) and foam tape, but is not limited thereto. The fourth adhesive member 450 can be arranged between the structure 850 and the sound generating device 450 and between the structure 850 and the display panel 110. The fourth adhesive member 407 may include double-sided tape, double-sided foam tape, thermosetting adhesive, photocurable adhesive and natural curable adhesive, but is not limited thereto. For example, the thermosetting adhesive may be an epoxy resin, but is not limited thereto. For example, the fourth adhesive member 407 may be formed of polyurethane, polyolefin and polyethylene, but is not limited thereto. Therefore, by further constructing the structure at a partial area of ​​the sound generating device, the bonding area of ​​the sound generating device can be enhanced, thereby improving the durability of the sound generating device against vibration or external impact and improving the durability of the sound generating device to prevent detachment. Referring to the above Figure 3 and Figures 6 to 9 The described contents can also be applied to FIGS. 11 to 13 in the same manner.

[0198] Fig.14 The sound output characteristics of the sound generating device according to the embodiment of the present disclosure are illustrated.

[0199] exist Fig.14 In the figure, the dotted line represents the sound output characteristics when the adhesive member is attached to the entire surface of the sound generating device, and the alternating long and short dash lines represent Figure 5B The sound output characteristics, and the solid line represents Figure 5C The horizontal axis represents the frequency in Hertz (Hz), and the vertical axis represents the sound pressure level (SPL) in decibels (dB).

[0200] The sound output characteristics may be measured by a sound analysis device. The sound analysis device may include a sound card that transmits and receives sound to and from the control PC, an amplifier that amplifies the sound generated from the sound card to the sound generating device, and a microphone that collects the sound generated from the display panel by the sound generating device. The sound collected by the microphone is input to the control PC through the sound card, and the control program checks the sound to analyze the sound of the sound generating device.

[0201] The sound output characteristics are measured relative to an anechoic chamber closed on all sides, and the measuring device is an APx525 device manufactured by Audio Precision. The sound pressure measurement value is measured at a distance of about 10 mm from the display panel. The applied frequency signal is a sine sweep from 20 Hz to 20 kHz, and the measurement result is subjected to 1 / 3 octave smoothing. However, the measurement method is not limited to this example.

[0202] Reference Fig.14 ,exist Figure 5B In the case of (which is a display device according to an embodiment of the present disclosure), it can be seen that the sound pressure is improved by about 5dB to 10dB or more in the entire surface at about 400Hz or more, compared with the dotted line corresponding to the case where the bonding agent is formed on the entire surface of the sound generating device. Figure 5C In the case of (which is a display device according to an embodiment of the present disclosure), it can be seen that the sound pressure is improved by about 5dB to 10dB or more in the entire surface at about 400Hz or more compared to the dotted line corresponding to the case where the bonding agent is formed on the entire surface of the sound generating device. Therefore, it can be seen that when the bonding member is formed on a partial area of ​​the sound generating device, the sound pressure is improved compared to the case where the bonding member is formed on the entire surface of the sound generating device.

[0203] The sound generating device according to the embodiment of the present disclosure can be applied to the sound generating device set in the display device. The display device according to the embodiment of the present disclosure can be applied to mobile devices, video phones, smart watches, watch phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, bending devices, electronic notebooks, e-books, portable multimedia players (PMP), personal digital assistants (PDA), MP3 players, mobile medical devices, desktop PCs, laptop PCs, notebook computers, workstations, navigation devices, car navigation devices, car display devices, TVs, wallpaper devices, signage devices, gaming devices, notebooks, monitors, cameras, camcorders and household appliances. The sound generating device of the present disclosure can be applied to organic light emitting lighting equipment or inorganic light emitting lighting equipment. When the sound generating device is applied to lighting equipment, it can be used as lighting and speakers. The sound generating device of the present disclosure can be applied to receivers and / or speakers of electronic devices, etc.

[0204] A display device according to an embodiment of the present disclosure may be described as follows.

[0205] According to an embodiment of the present disclosure, a display device includes: a display module having a display panel configured to display an image; a sound generating device, which is on a rear surface of the display panel and includes a first side and a second side perpendicular to the first side; and an adhesive member, wherein in a partial area of ​​the sound generating device, the size of the adhesive member is smaller than the size of one of the first side and the second side of the sound generating device.

[0206] For example, in the display apparatus according to the embodiment of the present disclosure, the adhesive member may be in the central region of the sound generating device.

[0207] For example, in the display device according to an embodiment of the present disclosure, the adhesive member may have a first side and a second side perpendicular to the first side, and the length of the first side of the adhesive member may be 0.2 to 1 times the length of the first side of the sound generating device.

[0208] For example, in the display device according to an embodiment of the present disclosure, the adhesive member may have a first side and a second side perpendicular to the first side, and the length of the second side of the adhesive member may be 0.2 to 1 times the length of the second side of the sound generating device.

[0209] For example, in a display device according to an embodiment of the present disclosure, the bonding member may have a first side and a second side perpendicular to the first side, the length of the first side of the bonding member may be 0.2 times to 1 times the length of the first side of the sound generating device, and the length of the second side of the bonding member may be equal to the length of the second side of the sound generating device.

[0210] For example, the display device according to the embodiment of the present disclosure may further include a third adhesive member at the periphery of the adhesive member.

[0211] For example, in the display device according to the embodiment of the present disclosure, the third adhesive member may be provided to surround the adhesive member.

[0212] For example, the display apparatus according to an embodiment of the present disclosure may further include a structure configured to support the side surface and the lower surface of the sound generating device.

[0213] For example, in the display device according to the embodiment of the present disclosure, the structure may be formed of a rigid material.

[0214] For example, in the display apparatus according to the embodiment of the present disclosure, the structure may be provided at a partial region of the sound generating device.

[0215] For example, the display apparatus according to the embodiment of the present disclosure may further include a fourth adhesive member between the structure and the sound generating device.

[0216] For example, in a display device according to an embodiment of the present disclosure, the display panel may include a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side, and the distance from the center of the sound generating device to the end of the first short side of the display panel may be 1 / 4 to 1 / 3 relative to the long side of the display panel.

[0217] For example, a display device according to an embodiment of the present disclosure may further include: a second sound generating device, which is on the rear surface of the display panel and includes a first side and a second side perpendicular to the first side; and a second adhesive member, which is between the display panel and the second sound generating device and includes a first side and a second side perpendicular to the first side.

[0218] For example, the display apparatus according to an embodiment of the present disclosure may further include a partition on the rear surface of the display panel and configured to separate sounds respectively generated by the sound generating device and the second sound generating device from each other.

[0219] For example, in a display device according to an embodiment of the present disclosure, the length of the first side of the second adhesive member may be 0.2 to 1 times the length of the first side of the second sound generating device, and the length of the second side of the second adhesive member may be equal to the length of the second side of the second sound generating device.

[0220] For example, in a display device according to an embodiment of the present disclosure, the display panel may include a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side, and the distance from the center of the second sound generating device to the end of the second short side of the display panel may be 1 / 4 to 1 / 3 relative to the long side of the display panel.

[0221] For example, in the display apparatus according to an embodiment of the present disclosure, the sound generating device may be disposed symmetrically to the second sound generating device with respect to a middle portion of the display module.

[0222] According to an embodiment of the present disclosure, a display device includes: a display module having a display panel configured to display an image; a sound generating device, which is on a rear surface of the display panel and includes a first side and a second side perpendicular to the first side; and an adhesive member between the display panel and the sound generating device, the adhesive member including a first side and a second side perpendicular to the first side, wherein the length of the first side of the adhesive member is less than or equal to the length of the first side of the sound generating device, and the length of the second side of the adhesive member is less than or equal to the length of the second side of the sound generating device.

[0223] For example, in a display device according to an embodiment of the present disclosure, the length of the first side of the adhesive member may be 0.2 to 1 times the length of the first side of the sound generating device, and the length of the second side of the adhesive member may be 0.2 to 1 times the length of the second side of the sound generating device.

[0224] For example, in a display device according to an embodiment of the present disclosure, the length of the first side of the adhesive member may be 0.2 to 1 times the length of the first side of the sound generating device, and the thickness of the second side of the adhesive member may be equal to the length of the second side of the sound generating device.

[0225] For example, the display device according to the embodiment of the present disclosure may further include: a third adhesive member at the periphery of the adhesive member.

[0226] For example, in the display device according to the embodiment of the present disclosure, the third adhesive member may be provided to surround the adhesive member.

[0227] For example, the display apparatus according to an embodiment of the present disclosure may further include a structure configured to support a side surface and a lower surface of the sound generating device.

[0228] For example, in the display device according to the embodiment of the present disclosure, the structure may be formed of a rigid material.

[0229] For example, in the display apparatus according to the embodiment of the present disclosure, the structure may be provided at a partial region of the sound generating device.

[0230] For example, the display apparatus according to the embodiment of the present disclosure may further include a fourth adhesive member between the structure and the sound generating device.

[0231] For example, in a display device according to an embodiment of the present disclosure, the display panel may include a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side, and the distance from the center of the sound generating device to the end of the first short side of the display panel may be 1 / 4 to 1 / 3 relative to the long side of the display panel.

[0232] For example, a display device according to an embodiment of the present disclosure may further include: a second sound generating device, which is on the rear surface of the display panel and includes a first side and a second side perpendicular to the first side; and a second adhesive member, which is between the display panel and the second sound generating device and includes a first side and a second side perpendicular to the first side.

[0233] For example, the display apparatus according to an embodiment of the present disclosure may further include a partition on the rear surface of the display panel and configured to separate sounds respectively generated by the sound generating device and the second sound generating device from each other.

[0234] For example, in a display device according to an embodiment of the present disclosure, the length of the first side of the second adhesive member may be 0.2 to 1 times the length of the first side of the second sound generating device, and the length of the second side of the second adhesive member may be equal to the length of the second side of the second sound generating device.

[0235] For example, in a display device according to an embodiment of the present disclosure, the display panel may include a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side, and the distance from the center of the second sound generating device to the end of the second short side of the display panel may be 1 / 4 to 1 / 3 relative to the long side of the display panel.

[0236] For example, in the display apparatus according to an embodiment of the present disclosure, the sound generating device may be disposed symmetrically to the second sound generating device with respect to a middle portion of the display module.

[0237] It will be apparent to those skilled in the art that various modifications and changes may be made to the display device of the present disclosure without departing from the technical concept or scope of the present disclosure. Therefore, the embodiments of the present disclosure are intended to cover modifications and changes of the present disclosure as long as they fall within the scope of the attached claims and their equivalents.

[0238] CROSS-REFERENCE TO RELATED APPLICATIONS

[0239] This application claims the benefit of and priority to Korean Patent Application No. 10-2018-0154762, filed on Dec. 4, 2018, which is hereby incorporated by reference herein in its entirety.

Claims

1. An electronic device, comprising: A display module having a display panel configured to display an image; a sound generating device on a rear surface of the display panel and including a first side and a second side perpendicular to the first side; as well as an adhesive member, the adhesive member in a partial region of the sound generating device, wherein a peripheral portion of the sound generating device is spaced apart from the rear surface of the display panel, and a space is provided between the peripheral portion of the sound generating device and the rear surface of the display panel, The display panel includes a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side. wherein a distance from the center of the sound generating device to an end of the first short side of the display panel is 1 / 4 to 1 / 3 of the long side of the display panel, wherein the bonding member has a first side and a second side perpendicular to the first side, wherein the length of the first side of the bonding member is smaller than the length of the first side of the sound generating device, wherein the length of the second side of the adhesive member is less than or equal to the length of the second side of the sound generating device, and Wherein, a length of the first side of the bonding member is different from a length of the second side of the bonding member.

2. The electronic device according to claim 1, wherein: The bonding member is in a central region of the sound generating device, or wherein the sound generating device includes a central portion connected to the adhesive member and the peripheral portion surrounding the central portion.

3. The electronic device according to claim 1, wherein: The length of the first side of the bonding member is 0.25 to 0.5 times the length of the first side of the sound generating device.

4. The electronic device according to claim 1, wherein: The length of the second side of the adhesive member is 0.25 to 0.5 times the length of the second side of the sound generating device.

5. An electronic device, comprising: A display module having a display panel configured to display an image; a sound generating device on a rear surface of the display panel and including a first side and a second side perpendicular to the first side; as well as an adhesive member between the display panel and the sound generating device, the adhesive member comprising a first side and a second side perpendicular to the first side, wherein the length of the first side of the bonding member is less than the length of the first side of the sound generating device, and the length of the second side of the bonding member is less than or equal to the length of the second side of the sound generating device, and wherein a peripheral portion of the sound generating device is spaced apart from the rear surface of the display panel, with a space between the peripheral portion of the sound generating device and the rear surface of the display panel, and Wherein, a length of the first side of the bonding member is different from a length of the second side of the bonding member.

6. The electronic device according to claim 5, wherein: The length of the first side of the bonding member is 0.25 to 0.5 times the length of the first side of the sound generating device; and The length of the second side of the adhesive member is 0.25 to 0.5 times the length of the second side of the sound generating device.

7. The electronic device according to claim 5, wherein: The display panel includes a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side; and A distance from a center of the sound generating device to an end of the first short side of the display panel is 1 / 4 to 1 / 3 of the long side of the display panel.

8. The electronic device according to any one of claims 1 to 7, further comprising: a housing at a rear surface of the display module, and Wherein, the sound generating device is arranged between the display panel and the housing.

9. The electronic device according to claim 8, in, The sound generating device is connected to the rear surface of the display panel, and Wherein, the sound generating device is spaced apart from the housing.

10. An electronic device, comprising: A display module having a display panel configured to display an image; a sound generating device on a rear surface of the display panel and including a first side and a second side perpendicular to the first side; an adhesive member in a partial region of the sound generating device; as well as a housing at a rear surface of the display module, Wherein, the sound generating device is arranged between the display panel and the housing, wherein a peripheral portion of the sound generating device is spaced apart from the rear surface of the display panel, and a space is provided between the peripheral portion of the sound generating device and the rear surface of the display panel, wherein the bonding member has a first side and a second side perpendicular to the first side, wherein the length of the first side of the bonding member is smaller than the length of the first side of the sound generating device, wherein the length of the second side of the adhesive member is less than or equal to the length of the second side of the sound generating device, and Wherein, a length of the first side of the bonding member is different from a length of the second side of the bonding member.

11. The electronic device according to claim 10, in, The sound generating device is connected to the rear surface of the display panel, and Wherein, the sound generating device is spaced apart from the housing.

12. The electronic device according to claim 10, wherein: The bonding member is in a central region of the sound generating device.

13. The electronic device according to claim 10, wherein: The length of the first side of the bonding member is 0.25 to 0.5 times the length of the first side of the sound generating device.

14. The electronic device according to any one of claims 1 to 7 and 10 to 13, further comprising: A third bonding member is located at a periphery of the bonding member.

15. The electronic device according to claim 14, wherein: the third adhesive member is disposed to surround the adhesive member between the sound generating device and the rear surface of the display panel, and / or wherein the adhesive member and the third adhesive member are composed of different materials from each other, Wherein, the adhesive member comprises a double-sided tape, and Wherein, the third adhesive member comprises a double-sided foam tape.

16. The electronic device according to any one of claims 1 to 7 and 10 to 13, further comprising: A structure is configured to support the side surfaces and the lower surface of the sound generating device.

17. The electronic device according to claim 16, wherein: The structure is formed from a rigid material.

18. The electronic device according to claim 16, wherein: The structure is disposed in a partial region of the sound generating device.

19. The electronic device according to claim 16, further comprising: A fourth bonding member is between the structure and the sound generating device.

20. The electronic device according to any one of claims 1 to 7 and 10 to 13, further comprising: a second sound generating device, the second sound generating device being on the rear surface of the display panel and comprising a first side and a second side perpendicular to the first side; as well as A second adhesive member is between the display panel and the second sound generating device and includes a first side and a second side perpendicular to the first side.

21. The electronic device according to claim 20, further comprising: A partition is on the rear surface of the display panel and is configured to separate the sounds respectively generated by the sound generating device and the second sound generating device from each other.

22. The electronic device according to claim 20, wherein: a length of the first side of the second bonding member is 0.2 to 1 times the length of the first side of the second sound generating device; and The length of the second side of the second adhesive member is equal to the length of the second side of the second sound generating device.

23. The electronic device according to claim 20, wherein: The display panel includes a first short side, a second short side facing the first short side, and a long side perpendicular to the first short side or the second short side; and A distance from a center of the second sound generating device to an end of the second short side of the display panel is 1 / 4 to 1 / 3 of the long side of the display panel.

24. The electronic device according to claim 20, wherein: The sound generating device is disposed symmetrically to the second sound generating device with respect to a middle portion of the display module.

25. The electronic device according to any one of claims 1 to 7 and 10 to 13, wherein: The adhesive member is directly attached to the rear surface of the display panel and the sound generating device.

26. The electronic device according to any one of claims 1 to 7 and 10 to 13, further comprising a structure configured to support the sound generating device, and in: an upper surface of the sound generating device is attached to a rear surface of the display panel via the adhesive member, The structure is configured to support a lower surface of the sound generating device and at least a portion of a side surface of the sound generating device, and A portion of the structure is attached to a portion of the rear surface of the display panel.

Images