Electronic device and vibration generating device

Abstract

Electronic equipment and vibration generating equipment. The electronic equipment includes: a vibrating member; a first cover disposed on the rear surface of the vibrating member; a vibrating device disposed on the rear surface of the first cover; a first member disposed on the rear surface of the first cover and on the rear surface of the vibrating member; and a rear vibrating member disposed on the first member.

Description

[0001] This application is a divisional application of the original invention patent application No. 202111641951.3 (filed on December 29, 2021, invention title: electronic device and vibration generating device). Technical Field

[0002] This disclosure relates to electronic devices and vibration-generating devices. Background Technology

[0003] A device (or electronic device), such as a display device, may include a display panel for displaying images and speakers for providing sound. When a separate speaker is located within the display device, the speaker occupies space. Therefore, the design and spatial arrangement of the display device may be limited.

[0004] Furthermore, because sound output from speakers can propagate backward or downward from the display device, sound quality may degrade due to interference between sound waves reflected from walls and the floor. This can make it difficult to deliver accurate sound and may reduce the viewer's immersion. Summary of the Invention

[0005] The inventors have recognized the aforementioned problems and have conducted various experiments to realize electronic devices for improving sound quality and sound pressure characteristics. Therefore, through various experiments, the inventors have invented electronic devices and vibration generating devices with novel structures for improving sound quality and sound pressure characteristics. Thus, exemplary embodiments of this disclosure propose an electronic device and vibration generating device that substantially eliminates one or more problems caused by the limitations and disadvantages of the prior art.

[0006] One aspect of this disclosure is to provide an electronic device and a vibration generating device that can cause a vibrating member to vibrate to generate sound in the forward direction of the device, and can enhance one or both of the sound characteristics and / or sound pressure level characteristics.

[0007] Another aspect of this disclosure is to provide an electronic device and a vibration generating device that can cause a display component (or a vibrating component) to vibrate to generate tactile feedback, and can enhance the vibration characteristics, intensity, and response time of the tactile feedback.

[0008] Additional features and aspects will be set forth in part in the description which follows, and will also become apparent in part from that description, or may be learned by practicing the inventive concept provided herein. Other features and aspects of the inventive concept may be realized and obtained by means of structures particularly pointed out in the written description or from which they may be derived, the claims, and the drawings.

[0009] In order to achieve these and other aspects of the inventive concept, and for the purposes of this disclosure, as embodied and broadly described herein, an electronic device according to an embodiment of this disclosure includes: a vibrating member; a first cover disposed on a rear surface of the vibrating member; a vibrating device disposed on the rear surface of the first cover; a first member disposed on both the rear surface of the first cover and the rear surface of the vibrating member; and a rear vibrating member disposed on the first member.

[0010] In another aspect, a vibration generating device includes: a first member including a first hole and a second hole; a first vibration device disposed at the first hole; a second vibration device disposed at the second hole; a second member connected to the rear surface of the vibration member to cover the first member, the first vibration device and the second vibration device; and a rear vibration member disposed at the second member.

[0011] An electronic device according to an exemplary embodiment of this disclosure can output sound in the forward direction of a display panel or a vibrating member, and can output sound with improved sound quality, sound performance and / or sound pressure level characteristics, thereby increasing the immersion of the viewer (or user).

[0012] An electronic device according to an exemplary embodiment of the present disclosure can generate tactile feedback based on the vibration of a display panel or a vibrating component, and can enhance the vibration characteristics, intensity, and response time of the tactile feedback.

[0013] The vibration generating device according to an exemplary embodiment of this disclosure can output sound in the forward direction of a vibrating member (or vibrating object), and can output sound with improved sound quality and sound performance and / or sound pressure level characteristics.

[0014] The vibration generating device according to an exemplary embodiment of this disclosure can generate tactile feedback based on the vibration of a vibrating component (or vibrating object).

[0015] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon viewing the following drawings and detailed description. All such additional systems, methods, features, and advantages are intended to be included within this specification, within the scope of this 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 embodiments of this disclosure.

[0016] It should be understood that the above summary and the following detailed description of this disclosure are exemplary and illustrative, and are intended to provide further explanation of the claimed inventive concept.

[0017] Appendix 1. An electronic device comprising:

[0018] Vibrating components;

[0019] A first cover is disposed on the rear surface of the vibrating member;

[0020] A vibration device is disposed on the rear surface of the first cover;

[0021] A first component, disposed on the rear surface of the first cover and on the rear surface of the vibrating component; and

[0022] A rear vibration member is disposed at the first member.

[0023] Appendix 2. The electronic device according to Appendix 1, wherein the vibration device comprises:

[0024] A plate, disposed on the rear surface of the first cover and configured as a cover hole; and

[0025] A vibration generator is disposed on the rear surface of the plate.

[0026] Note 3. The electronic device according to Note 2, wherein the plate has a second thickness that is thinner than the first thickness of the rear portion of the first cover.

[0027] Note 4. The electronic device according to Note 2, wherein the plate has a shape that bends toward the vibrating device, or has a shape that bends in the opposite direction to the vibrating device.

[0028] Note 5. The electronic device according to Note 1, wherein the rear vibration member is disposed on the front surface of the first member opposite to the first cover, or disposed on the rear surface of the first member opposite to the front surface of the first member.

[0029] Note 6. The electronic device according to Note 1,

[0030] The first component includes a receiving portion, and

[0031] The rear vibration member is disposed in the receiving portion.

[0032] Note 7. The electronic device according to Note 6, wherein the receiving portion is a portion of the first member that protrudes toward the first cover or in a direction opposite to the first cover.

[0033] Note 8. The electronic device according to Note 6, wherein the receiving portion is a groove formed on a portion of the front surface of the first member or a groove formed on a portion of the rear surface of the first member.

[0034] Note 9. The electronic device according to Note 6, wherein the receiving portion includes a hole or slit overlapping the rear vibration member.

[0035] Note 10. The electronic device according to Note 1,

[0036] The first cover includes a first peripheral region and a second peripheral region relative to a first centerline in the width direction, and

[0037] The first component is disposed at at least one or more locations in the first peripheral region and the second peripheral region of the first cover.

[0038] Note 11. The electronic device according to Note 10,

[0039] The first cover includes a first region and a second region relative to a second centerline in the length direction, and

[0040] The first component is disposed above the first and second regions of the first cover.

[0041] Note 12. The electronic device according to Note 11,

[0042] The first component includes a first portion corresponding to a first region of the first cover and a second portion corresponding to a second region of the first cover.

[0043] The vibration device is installed at the first or second part of the first component, and

[0044] The rear vibration component is disposed at the first part or the second part of the first component.

[0045] Note 13. The electronic device according to Note 11,

[0046] The first component includes a first (1-1) component disposed on the rear surface of the first peripheral region of the first cover and a first (1-2) component disposed on the rear surface of the second peripheral region of the first cover.

[0047] Each of the (1-1)th component and the (1-2)th component includes a first portion corresponding to a first region of the first cover and a second portion corresponding to a second region of the first cover.

[0048] The rear vibration component includes:

[0049] A first rear vibration member is disposed at a first or second portion of the (1-1) member; and

[0050] The second rear vibration member is disposed at the first or second part of the (1-2) member.

[0051] Note 14. The electronic device according to Note 13, wherein the (1-1) member has a structure that is symmetrical with respect to the center line of the vibrating member and the (1-2) member.

[0052] Appendix 15. The electronic device according to Appendix 13, wherein the first (1-1) component includes a bottom portion disposed on and covering the rear surface of the first vibration device, and a lateral portion disposed on and covering the lateral surface of the first vibration device, the lateral portion of the first (1-1) component being connected to one side of the bottom portion of the first (1-1) component and disposed along the periphery of the bottom portion of the first (1-1) component, and

[0053] The first (1-2) component includes a bottom portion disposed on and covering the rear surface of the second vibration device, and a lateral portion disposed on and covering the lateral surface of the second vibration device. The lateral portion of the first (1-2) component is connected to one side of the bottom portion of the first (1-2) component and is disposed along the periphery of the bottom portion of the first (1-2) component.

[0054] Appendix 16. The electronic device according to Appendix 13, wherein the first rear vibration member includes a first vibrating plate and a first connecting member inserted between the (1-1) member and the first vibrating plate, and

[0055] The second rear vibration member includes a second vibration plate and a second connecting member inserted between the (1-2) member and the second vibration plate.

[0056] Note 17. The electronic device according to Note 13,

[0057] The vibration device includes a first vibration device disposed on the rear surface of the first peripheral region of the first cover.

[0058] Wherein, the first vibration device is disposed at the first or second part of the (1-1)th component, and

[0059] The first rear vibration member is disposed at the first or second part of the (1-1) member.

[0060] Note 18. The electronic device according to Note 13,

[0061] The vibration device includes a second vibration device disposed on the rear surface of the second peripheral region of the first cover.

[0062] The second vibration device is disposed at the first or second part of the (1-2) component, and

[0063] The second rear vibration member is disposed at the first part of the (1-2) member or the second part of the (1-2) member.

[0064] Note 19. The electronic device according to Note 13, wherein the vibration device includes a first vibration device disposed on the rear surface of a first peripheral region of the first cover, and a second vibration device disposed on the rear surface of a second peripheral region of the first cover.

[0065] Note 20. The electronic device according to Note 19, wherein the first distance between the first vibrating device and the first rear vibrating member is the same as or different from the second distance between the second vibrating device and the second rear vibrating member.

[0066] Note 21. The electronic device according to Note 19,

[0067] The first cover includes a first hole (1-1) disposed in the first peripheral region and a second hole (1-2) disposed in the second peripheral region.

[0068] Wherein, the first vibration device covers the (1-1)th hole, and

[0069] The second vibration device covers the (1-2)th hole.

[0070] Note 22. The electronic device according to Note 21,

[0071] The first vibration device includes a first (1-1) vibration device disposed on the rear surface of the first peripheral region of the first cover, and a second (1-2) vibration device disposed adjacent to the first (1-1) vibration device to cover the first (1-1) hole.

[0072] The second vibration device includes a (2-1) vibration device disposed on the rear surface of the second peripheral region of the first cover, and a (2-2) vibration device disposed adjacent to the (2-1) vibration device to cover the (1-2) hole.

[0073] Note 23. The electronic device according to Note 22,

[0074] Each of the (1-1)th vibration device and the (2-1)th vibration device includes a diaphragm vibration device, and

[0075] Each of the (1-2) vibration devices and the (2-2) vibration devices includes a coil-type vibration device.

[0076] Appendix 24. The electronic device according to Appendix 22, wherein each of the (1-1) vibration device and the (2-1) vibration device comprises:

[0077] The vibrating component includes a piezoelectric material;

[0078] A first electrode layer is disposed on a first surface of the vibrating portion; and

[0079] A second electrode layer is disposed on a second surface of the vibrating portion that is different from the first surface of the vibrating portion.

[0080] Note 25. The electronic device according to Note 24, wherein each of the (1-1) vibration device and the (2-1) vibration device further comprises:

[0081] A first protective member, wherein the first protective member is disposed above and covers the first electrode layer; and

[0082] A second protective member is disposed below and covers the second electrode layer.

[0083] Note 26. The electronic device according to Note 25, wherein each of the (1-1) vibration device and the (2-1) vibration device further comprises:

[0084] A first power line is disposed on the rear surface of the first protective member facing the vibrating portion and is electrically connected to the first electrode layer.

[0085] A second power supply line is disposed on the front surface of the second protective member facing the vibrating portion and is electrically connected to the second electrode layer; and

[0086] The pad portion is electrically connected to the first power line and the second power line.

[0087] Note 27. The electronic device according to Note 22,

[0088] The (1-1)th vibration device includes a first vibration generator and a first plate disposed on the rear surface of the first peripheral region of the first cover.

[0089] The (2-1) vibration device includes a second vibration generator and a second plate disposed on the rear surface of the second peripheral region of the first cover.

[0090] Note 28. The electronic device according to Note 27,

[0091] Wherein, the first plate includes a second hole (2-1) that overlaps with the first hole (1-1), and

[0092] The second plate includes a second hole (2-2) that overlaps with the first hole (1-2).

[0093] Note 29. The electronic device according to Note 28,

[0094] The first cover includes a (3-1)th hole located in a first region of the first cover and a (3-2)th hole located in a second region of the first cover.

[0095] The first vibration device is disposed in the first region of the first cover and covers the (3-1) hole, and the second vibration device is disposed in the second region of the first cover and covers the (3-2) hole.

[0096] Note 30. The electronic device according to Note 27,

[0097] The first plate has a shape that bends toward the first (1-1) hole or has a shape that bends in the opposite direction to the first (1-1) hole.

[0098] The second plate has a shape that bends toward the first (1-2) hole or has a shape that bends in the opposite direction to the first (1-2) hole.

[0099] Note 31. The electronic device according to Note 27,

[0100] The first plate is disposed on the rear surface of the first peripheral region of the first cover.

[0101] The first vibration generator is disposed on the rear surface of the first plate or on the rear surface of the first peripheral area of ​​the first cover.

[0102] The first plate is disposed on the rear surface of the first vibration generator.

[0103] Note 32. The electronic device according to Note 27,

[0104] The second plate is disposed on the rear surface of the second peripheral region of the first cover.

[0105] The second vibration generator is disposed on the rear surface of the second plate or on the rear surface of the second peripheral region of the first cover.

[0106] The second plate is disposed on the rear surface of the second vibration generator.

[0107] Note 33. The electronic device according to Note 27, wherein each of the first vibration generator and the second vibration generator comprises:

[0108] The vibrating part includes a plurality of first parts and a plurality of second parts, the plurality of first parts comprising inorganic materials, and the plurality of second parts disposed between the plurality of first parts and comprising organic materials;

[0109] A first electrode layer is disposed on a first surface of the vibrating portion; and

[0110] A second electrode layer is disposed on a second surface of the vibrating portion that is different from the first surface of the vibrating portion.

[0111] Note 34. The electronic device according to Note 27, wherein each of the first vibration generator and the second vibration generator comprises:

[0112] The vibrating component includes a piezoelectric material;

[0113] A first electrode layer is disposed on a first surface of the vibrating portion; and

[0114] A second electrode layer is disposed on a second surface of the vibrating portion that is different from the first surface of the vibrating portion.

[0115] Note 35. The electronic device according to Note 22,

[0116] The first vibration device includes a second component disposed on the rear surface of the first peripheral region of the first cover, and

[0117] The second vibration device includes a third component disposed on the rear surface of the second peripheral region of the first cover.

[0118] Note 36. The electronic device according to Note 35,

[0119] The (1-1)th vibration device and the (1-2)th vibration device are disposed on the rear surface of the second component, and

[0120] The (2-1) vibration device and the (2-2) vibration device are disposed on the rear surface of the third component.

[0121] Note 37. The electronic device according to Note 36,

[0122] The second component includes a fourth hole corresponding to the first (1-1) vibration device and a fourth hole corresponding to the first (1-2) vibration device.

[0123] The third component includes a (5-1) hole corresponding to the (2-1) vibration device and a (5-2) hole corresponding to the (2-2) vibration device.

[0124] Note 38. The electronic device according to Note 37, wherein the third component further includes a portion disposed between the (5-1) hole and the (5-2) hole, the portion being used to acoustically separate the space where the (2-1) vibrating device is disposed from the space where the (2-2) vibrating device is disposed.

[0125] Note 39. The electronic device according to Note 37,

[0126] Wherein, the (4-2)th hole corresponds to the (1-1)th hole, and

[0127] Wherein, the (5-2)th hole corresponds to the (1-2)th hole.

[0128] Note 40. The electronic device according to any one of Notes 1 to 39, wherein the vibrating member comprises one or more of a display panel, a light-emitting diode illumination panel, an organic light-emitting illumination panel, and an inorganic light-emitting illumination panel comprising a plurality of pixels configured to display an image.

[0129] Note 41. The electronic device according to any one of Notes 1 to 39, wherein the vibrating component comprises one or more materials selected from metal, wood, rubber, plastic, glass, fiber, cloth, paper, and leather.

[0130] Note 42. The electronic device according to any one of Notes 1 to 39, wherein the vibrating member comprises one or more of the following: a display panel including a plurality of pixels configured to display an image; a screen panel projecting an image from a display device; a lighting panel; a sign panel; vehicle interior material; vehicle window; vehicle exterior material; building ceiling material; building interior material; building window; aircraft interior material; aircraft window; and a reflector.

[0131] Note 43. The electronic device according to any one of Notes 1 to 39, further comprising a display component including a display panel configured to display an image,

[0132] The display component includes a backlight component disposed on the rear surface of the display panel and a guide component located between the display panel and the backlight component.

[0133] Note 44. The electronic device according to Note 43, wherein the display panel is further configured to sense a touch applied to the display member, or to output sound according to the vibration of the vibrating device, or to generate tactile feedback in response to a touch.

[0134] Note 45. The electronic device according to any one of Notes 1 to 39, further comprising:

[0135] The display component includes a display panel configured to display an image;

[0136] A front member, which is disposed on the front surface of the display member; and

[0137] A second cover is disposed on the rear surface of the first cover to accommodate the display component, the first cover, the vibration device, and the first component on which the rear vibration component is disposed.

[0138] Note 46. The electronic device according to Note 45, wherein the second cover includes a cover housing for providing an enclosed space between the rear portion of the first cover and the rear structure of the second cover.

[0139] Note 47. The electronic device according to Note 1, wherein the vibration device is a diaphragm vibration device.

[0140] Note 48. The electronic device according to Note 1 further includes an air gap disposed between the first cover and the vibration device.

[0141] Appendix 49. A vibration generating device, the vibration generating device comprising:

[0142] A first component, the first component including a first hole and a second hole;

[0143] A first vibration device is disposed at the first hole;

[0144] A second vibration device is installed at the second hole;

[0145] A second component, connected to the rear surface of the vibrating component, and configured to cover the first component, the first vibrating device, and the second vibrating device; and

[0146] A rear vibration member is disposed at the second member.

[0147] Note 50. The vibration generating device according to Note 49, wherein the rear vibration member vibrates based on the vibration of at least one or more of the first vibration device and the second vibration device.

[0148] Note 51. The vibration generating device according to Note 49,

[0149] The second component includes a receiving portion, and

[0150] The rear vibration member is disposed in the receiving portion.

[0151] Note 52. The vibration generating device according to Note 51, wherein the receiving portion includes a groove formed on a portion of the front surface of the second member or a groove formed on a portion of the rear surface of the second member.

[0152] Note 53. The vibration generating device according to Note 51, wherein the receiving portion includes a hole overlapping the rear vibrating member.

[0153] Note 54. The vibration generating device according to any one of Notes 51 to 53, wherein the rear vibrating member further includes a vibrating plate disposed at the receiving portion, and

[0154] The vibrating plate is configured to vibrate by vibrations of the second component based on at least one or more of the vibrations of the first vibration device and the second vibration device.

[0155] Note 55. The vibration generating device according to any one of Notes 49 to 53,

[0156] The first vibration device outputs a first sound pressure level to the vibration component through the first hole.

[0157] The second vibration device outputs a second sound pressure level, different from the first sound pressure level, to the vibrating component through the second hole, and

[0158] The rear vibration component outputs tactile vibrations based on the vibrations of at least one or more of the first vibration device and the second vibration device.

[0159] Note 56. The vibration generating device according to any one of Notes 49 to 53,

[0160] The first vibration device includes a vibration generator containing piezoelectric elements, and

[0161] The second vibration device includes a coil-type vibration generator.

[0162] Note 57. The vibration generating device according to any one of Notes 49 to 53,

[0163] The first vibration device is disposed between the first component and the second component and covers the first hole.

[0164] The second vibration device is disposed between the first component and the second component and covers the second hole.

[0165] Note 58. The vibration generating device according to Note 49, wherein the second component comprises:

[0166] The bottom portion covers the rear surface of each of the first component, the first vibration device, and the second vibration device; and

[0167] A lateral portion, which is connected to the vibrating member and disposed around the periphery of the bottom portion to cover the lateral surfaces of each of the first member, the first vibrating device, and the second vibrating device.

[0168] Note 59. The vibration generating device according to Note 58, wherein the second component further includes a through hole disposed at the bottom portion and overlapping with the first vibration device.

[0169] Note 60. The vibration generating device according to Note 56,

[0170] The first vibration device further includes a plate covering the first hole, and

[0171] The vibration generator is disposed between the plate and the second component.

[0172] Note 61. The vibration generating device according to Note 55, wherein the plate has a shape that bends toward the first hole or has a shape that bends in the opposite direction to the first hole.

[0173] Note 62. The vibration generating device according to Note 49, wherein the first vibration device is a diaphragm vibration device. Attached Figure Description

[0174] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this application. The drawings illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0175] Figure 1 An apparatus according to an exemplary embodiment of the present disclosure is shown.

[0176] Figure 2 yes Figure 1 An exploded perspective view of the device shown.

[0177] Figure 3 It is along Figure 1 The cross-sectional view shown is taken by line I-I'.

[0178] Figure 4 yes Figure 3 An enlarged view of region "A" shown in the image.

[0179] Figure 5 yes Figure 3 An enlarged view of region "B" shown in the image.

[0180] Figure 6 yes Figure 3 An enlarged view of region "C" shown in the diagram.

[0181] Figure 7 A vibration generator according to an exemplary embodiment of the present disclosure is shown.

[0182] Figure 8 It is along Figure 7 The cross-sectional view taken by line II-II' shown.

[0183] Figures 9A to 9F The vibration portion of a vibration generator according to an exemplary embodiment of this disclosure is shown.

[0184] Figure 10 yes Figure 3 Another enlarged view of region "B" shown.

[0185] Figure 11 yes Figure 3 Another enlarged view of region "B" shown.

[0186] Figure 12 yes Figure 3 Another enlarged view of region "B" shown.

[0187] Figure 13 yes Figure 3 Another enlarged view of region "C" shown.

[0188] Figure 14 This is an exploded view of a device according to another exemplary embodiment of the present disclosure.

[0189] Figure 15 It is relative to Figure 14 The connection structure of the device shown follows Figure 1 An exemplary cross-sectional view taken by line I-I' as shown.

[0190] Figure 16 yes Figure 15 An enlarged view of region "D" shown.

[0191] Figure 17 It shows Figure 14 The exemplary vibration generator shown.

[0192] Figure 18 It is relative to Figure 14 The connection structure of the device shown follows Figure 1 Another exemplary cross-sectional view taken by line I-I' shown.

[0193] Figure 19 yes Figure 18 An enlarged view of region "E" shown.

[0194] Figure 20 It is a graph showing the sound pressure level characteristics of a device according to an exemplary embodiment of the present disclosure.

[0195] Figure 21 This is a graph illustrating another sound pressure level characteristic of the device according to an exemplary embodiment of this disclosure.

[0196] Figure 22 The rear surface of a device according to another exemplary embodiment of this disclosure is shown.

[0197] Figure 23 yes Figure 22 An exploded perspective view of the device shown.

[0198] Figure 24 Measurement points in a display component for measuring vibration acceleration in a device according to an exemplary embodiment of the present disclosure are shown.

[0199] Throughout the accompanying drawings and detailed description, unless otherwise stated, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and convenience, the relative dimensions and depictions of these elements may be exaggerated. Detailed Implementation

[0200] Exemplary embodiments of this disclosure will now be described in detail, examples of which can be illustrated in the accompanying drawings.

[0201] In the following description, the progress of the processing steps or operations described herein is not limited to those set forth herein and may be varied as is known in the art, unless otherwise specified. The same reference numerals throughout this document denote the same elements unless otherwise specified. The names of the corresponding elements used in the following description are chosen solely for ease of writing and may therefore differ from those used in actual products.

[0202] The advantages and features of this disclosure and its implementation methods will be illustrated by the following exemplary embodiments described with reference to the accompanying drawings. However, this disclosure may be implemented in various forms and should not be construed as limited to the exemplary embodiments described herein. Rather, these exemplary embodiments are provided so that this disclosure may be thorough and complete enough to assist those skilled in the art in fully understanding its scope. Furthermore, the scope of protection of this disclosure is defined by the claims and their equivalents.

[0203] The shapes, sizes, ratios, angles, and quantities shown in the accompanying drawings to illustrate various exemplary embodiments of this disclosure are given by way of example only. Therefore, this disclosure is not limited to what is shown in the drawings.

[0204] In the following description, detailed descriptions of relevant known functions or configurations may be omitted where such descriptions would unnecessarily obscure the focus of this disclosure.

[0205] When terms such as “including,” “having,” or “contains” are used, one or more additional elements may be added, unless a term such as “only” is used. Elements described in the singular form are intended to include multiple elements, and vice versa, unless the context clearly indicates otherwise.

[0206] When interpreting a component, it should be interpreted as including a range of errors or tolerances, even if no explicit description of that range of errors or tolerances is provided.

[0207] When describing positional relationships, for example, when using terms such as "above," "over," "below," "over," "beside," "near" to describe the positional relationship between two components, one or more other components may be located between these two components, unless more restrictive terms such as "immediately adjacent," "directly," or "right next to" are used. For example, when an element and a layer are placed "on" another element or layer, a third element or layer may be inserted between them.

[0208] When describing temporal relationships, when the temporal sequence is described as such as “after,” “following,” “next,” or “before,” discontinuous situations may be included unless more restrictive terms such as “only,” “immediately,” or “directly” are used.

[0209] Although the terms “first,” “second,” “1-1,” “1-2,” “2-1,” “2-2,” “A,” “B,” “(a),” “(b),” etc., may be used herein to describe various elements, these elements should not be construed as being limited by these terms because they are not used to define a particular order or priority. These terms are used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0210] Unless otherwise specified, the expression “connected,” “joined,” or “attached” to another element or layer indicates that the element or layer may be directly connected or attached to another element or layer, or indirectly connected or attached to another element or layer, and that one or more intermediate elements or layers are “placed” or “inserted” between these elements or layers.

[0211] When a component or layer is referred to as being "on" or "connected to" another component or layer, it should be understood that this means the component or layer may be directly on or directly connected to the other component or layer, or that there may be intermediate components or layers. Furthermore, when a component is referred to as being "on" or "below" another component, it should be understood that this means the component may be positioned such that it is in direct contact with another component, or it may be positioned such that it is not in direct contact with another component.

[0212] The term “at least one” should be understood to include any and all combinations of one or more of the related listed items. For example, “at least one of the first element, the second element, and the third element” means a combination of all three listed elements, a combination of any two of the three elements, and each of the first, second, or third elements individually.

[0213] In this disclosure, the device may include a display device, such as an organic light-emitting display (OLED) module or a liquid crystal module (LCM) including a display panel and a driver for driving the display panel. Additionally, the device may include: assemblies (or assemblies of equipment) or assemblies of electronic devices such as notebook computers, laptops or portable computers, televisions, computer monitors, including automotive equipment for vehicles or equipment for other types of devices, or mobile electronic devices such as smartphones or electronic pads, which are finished products (or final products) including LCM or OLED modules.

[0214] Therefore, in this disclosure, examples of devices may include the display device itself, such as an LCM or OLED module, as well as a complete set of devices that include an LCM or OLED module as an end consumer device or application product.

[0215] In some implementations, an LCM or OLED module including a display panel and a driver may be referred to as a display device, and an electronic device that is a final product including the LCM or OLED module may be referred to as an assembly. For example, a display device may include a display panel such as an LCD panel or an OLED panel and a source printed circuit board (PCB) as a controller for driving the display panel. An assembly may also include an assembly PCB, which is an assembly controller electrically connected to the source PCB to control the overall operation of the assembly.

[0216] In some embodiments of this disclosure, the device including the vibration apparatus can be applied to a vehicle as a user interface module, such as for a car's central control panel. For example, the device can be positioned between occupants seated in the two front seats to transmit the device's vibrations into the vehicle interior. Therefore, the audio experience in the vehicle can be improved compared to a speaker positioned inside the vehicle.

[0217] Features of the various embodiments of this disclosure may be linked or combined with each other in part or in whole, and, as will be fully understood by those skilled in the art, may interoperate with each other and be technically driven in various ways. Exemplary embodiments of this disclosure may be performed independently of each other or may be performed together in an interdependent relationship.

[0218] The accompanying drawings are included to provide a further understanding of this disclosure and are incorporated in and constitute a part of this application. The drawings illustrate exemplary embodiments of this disclosure and, together with the description, serve to explain the principles of this disclosure. However, the technical features of this disclosure are not limited to the specific drawings, and the features disclosed in the drawings can be combined with each other to form new embodiments.

[0219] Hereinafter, exemplary embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Furthermore, for ease of description, the scale of each element shown in the drawings may differ from the actual scale. Therefore, the elements shown are not limited to the specific scale shown in the drawings.

[0220] Figure 1 An apparatus according to an exemplary embodiment of the present disclosure is shown.

[0221] Reference Figure 1 The device according to an exemplary embodiment of this disclosure may include a display member 200. For example, the display member 200 may display images, such as electronic images, digital images, still images, or video images. The device may generate sound and / or tactile feedback (or tactile vibration) based on vibrations of the display member 200. For example, the device may generate a first sound and / or a first tactile feedback in one area and a second sound and / or a second tactile feedback in another area.

[0222] According to an exemplary embodiment of this disclosure, the device can output sounds S1 and S2 (or vibration sounds or display vibration sounds) based on the vibration of a display member 200 configured to display an image. For example, in this device, the display member 200 can be vibrated by a vibration device to generate sounds S1 and S2. Therefore, the device according to an exemplary embodiment of this disclosure can use the display member 200 as a vibrating plate for generating sound and / or haptic feedback.

[0223] The device according to an exemplary embodiment of this disclosure can output sounds S1 and S2 in the forward direction FD of the screen by using the display member 200 as a vibrating plate for generating sound. Therefore, sound can be transmitted accurately, sound quality can be improved, and the immersion of the viewer or user can be enhanced. For example, the display member 200 can be a vibrating member, a passive vibrating member, a vibrating object, a display panel, or a vibrating plate, but the exemplary embodiments of this disclosure are not limited thereto.

[0224] Figure 2 yes Figure 1 An exploded perspective view of the device shown. Figure 3 It is along Figure 1 The cross-sectional view shown is taken by line I-I'. Figure 4 yes Figure 3 An enlarged view of region "A" shown in the image.

[0225] Reference Figures 1 to 4 The device according to an exemplary embodiment of this disclosure may include a front component 100, a display component 200, a guide component 300, a first cover 400, one or more vibration devices 500, a first component 600, and a second cover 700. The construction of the device is not limited to the example shown.

[0226] The front member 100 can form the frontmost structure of the device. For example, the front member 100 can be disposed on the front surface of the display member 200 and can protect the screen of the display member 200. For example, the front member 100 can cover the front surface of the display member 200 to protect the display member 200 from external impacts. In addition, the front member 100 can vibrate together with the vibration of the display member 200 to generate sound S and / or tactile feedback. For example, the front member 100 can generate different sound S1 and S2 and / or tactile feedback in different areas.

[0227] For example, the front component 100 may include a transparent plastic material, a glass material, or a tempered glass material. According to an exemplary embodiment of this disclosure, the front component 100 may include one of sapphire glass and tempered glass, or a stacked structure thereof. According to another exemplary embodiment of this disclosure, the front component 100 may include a transparent plastic material, such as polyethylene terephthalate (PET). The front component 100 may include tempered glass that is scratch-resistant and transparent. For example, the front component 100 may be a front structure, a front window, a cover window, a glass window, a cover screen, a screen cover, a window glass, etc., but the exemplary embodiments of this disclosure are not limited thereto.

[0228] For example, the front member 100 may cover non-display areas other than the display area of ​​the display member 200. For example, the front member 100 may include a transparent area overlapping the display area of ​​the display member 200 and a non-transparent area (or light-blocking area) overlapping the non-display area of ​​the display member 200. For example, the non-transparent area may cover not only the non-display area of ​​the display member 200, but also non-display areas in the device where no image is displayed.

[0229] The front member 100 may have a shape corresponding to the outer shape or outer periphery of the display member 200 or the display panel 210. For example, the front member 100 may have a polygonal shape, including a rectangular shape or a square shape, or it may have a non-polygonal shape including at least one side with a curved shape, but the exemplary embodiments of this disclosure are not limited thereto.

[0230] The device according to an exemplary embodiment of this disclosure may further include a first connecting member 110.

[0231] The first connecting member 110 may be disposed on a side surface of the front member 100. For example, the first connecting member 110 may be disposed around the side surface of the front member 100. The first connecting member 110 may be disposed to cover at least one or more of the side surfaces and corners of the front member 100. The first connecting member 110 may be disposed between the front member 100 and the second cover 700. The first connecting member 110 may be disposed along the region between the upper inner surfaces of the front member 100 and the second cover 700. The first connecting member 110 may connect or attach the front member 100 to the second cover 700 and may fill the space between the front member 100 and the second cover 700, thereby preventing light leakage into the region between the front member 100 and the second cover 700 (lateral light leakage).

[0232] According to an exemplary embodiment of this disclosure, the first connecting member 110 may include a silicone-based or UV-curable sealant (or resin). Considering the process interval (or time gap), the first connecting member 110 may include a UV-curable sealant. The first connecting member 110 may have a color (e.g., blue, red, cyan, or black), but the exemplary embodiments of this disclosure are not limited thereto. For example, the first connecting member 110 may include a colored resin or a light-shielding resin for preventing lateral light leakage.

[0233] The display component 200 can be disposed on the rear surface (or back surface) of the front component 100 and can be configured to display an image. For example, the image may include an electronic image, a digital image, etc. For example, the display component 200 may be a liquid crystal display device, but the type of display component 200 is not limited to this. For example, the display component 200 may be another type of display device such as a light-emitting display device, an electrophoretic display device, a micro light-emitting diode display device, an electrowetting display device, or a quantum dot light-emitting display device.

[0234] According to an exemplary embodiment of this disclosure, the rear surface (or back surface) of the display member 200 may include a central portion CP and peripheral portions EP. For example, the rear surface of the display member 200 may be divided into a central portion CP and two peripheral portions EP that are parallel to each other, with the central portion CP located therebetween.

[0235] The central portion CP of the display component 200 can be divided into a first central portion CP1 and a second central portion CP2. For example, the first central portion CP1 can be the left portion (or left central portion) of the central portion CP, and the second central portion CP2 can be the right portion (or right central portion) of the central portion CP. With respect to the first direction X (or width direction) of the display component 200, the first central portion CP1 and the second central portion CP2 can be symmetrical about left and right (or horizontally symmetrical) with respect to the center line (or width direction center line) CL1 of the display component 200.

[0236] The first central portion CP1 and the first peripheral portion EP1 can constitute the first part (or left part) P1 of the display member 200. The second central portion CP2 and the second peripheral portion EP2 can constitute the second part (or right part) P2 of the display member 200.

[0237] The display component 200 according to an exemplary embodiment of the present disclosure may include a display panel 210 and a backlight component 230. The construction of the display component 200 is not limited thereto.

[0238] The display panel 210 can be disposed on the rear surface of the front member 100 and can be configured to display images. For example, the images may include electronic images, digital images, still images, video images, etc.

[0239] The display panel 210 according to an exemplary embodiment of the present disclosure can be configured to display images using light irradiated from the backlight member 230. Furthermore, the display panel 210 can function as a touch sensor for sensing touches applied to the front member 100 (e.g., by a user). The display panel 210 can output sound S based on vibrations from the vibration device 500, or can generate tactile feedback (or tactile vibration) in response to a touch. The display panel 210 can be disposed on the rear surface of the front member 100 using a bonding process employing panel bonding members (or adhesive members). The panel bonding members may include pressure-sensitive adhesive (PSA), optically clear adhesive (OCA), or optically clear resin (OCR), but the exemplary embodiments of the present disclosure are not limited thereto.

[0240] The display panel 210 according to an exemplary embodiment of this disclosure may have a polygonal shape, including a rectangular or square shape, or it may have a non-polygonal shape including at least one side with a curved shape, but the exemplary embodiments of this disclosure are not limited thereto. The display panel 210 may have the same or different shape as the front member 100. For example, the front member 100 may have a rectangular shape, and the display panel 210 may have a rectangular shape with a size smaller than that of the front member 100. As another example, the front member 100 may have a non-polygonal shape, and the display panel 210 may have a non-polygonal shape or a rectangular shape with a size smaller than that of the front member 100.

[0241] The display panel 210 can be used as a vibrating plate, vibrating based on the vibration (or drive) of the vibrating device 500 to output sounds S1 and S2 in the forward direction FD. For example, the display panel 210 can output the first sound S1 of the first tone vocal cords and the second sound S2 of the second tone vocal cords simultaneously or sequentially in its forward direction FD based on the vibrating device 500. According to an exemplary embodiment of this disclosure, the first tone vocal cords may be the same as or different from the second tone vocal cords. For example, the first sound S1 with the first tone vocal cords can be output from the first portion (or left portion) P1 of the display panel 210 in the forward direction FD, and the second sound S2 with the second tone vocal cords can be output from the second portion (or right portion) P2 of the display panel 210 in the forward direction FD.

[0242] The display panel 210 may be a vibrating plate that vibrates based on the vibration of the vibrating device 500 to generate tactile feedback. For example, the display panel 210 may generate first tactile feedback at a first portion (or left portion) P1 based on the vibration of the vibrating device 500, and may generate second tactile feedback at a second portion (or right portion) P2. For example, the display panel 210 may generate first tactile feedback at a first peripheral portion EP1, and may generate second tactile feedback at a second peripheral portion EP2.

[0243] Reference Figure 4 The display panel 210 according to an exemplary embodiment of the present disclosure may include a first substrate 211, a second substrate 213, a first polarizing member 215, and a second polarizing member 217. The structure of the display panel 210 is not limited thereto.

[0244] The first substrate 211 may be a lower substrate or a thin-film transistor (TFT) array substrate. The first substrate 211 may include a pixel array, which includes multiple pixels respectively disposed in multiple pixel regions formed at the intersections between multiple gate lines and multiple data lines. Each of the multiple pixels may include a TFT connected to the gate lines and data lines, a pixel electrode connected to the TFT, and a common electrode disposed adjacent to the pixel electrode and provided with a common voltage.

[0245] The first substrate 211 may further include a pad portion disposed at its first periphery and a gating drive circuit disposed at its second periphery. The pad portion can transmit signals provided from an external source to the pixel array and the gating drive circuit. For example, the pad portion may include multiple data pads connected to multiple data lines via multiple data link lines, and may also include multiple gating input pads connected to the gating drive circuit via gating control signal lines.

[0246] The gating drive circuit according to an exemplary embodiment of this disclosure can be embedded (or integrated) into the second periphery of the first substrate 211 and can be connected to multiple gating lines in a one-to-one relationship. For example, the gating drive circuit can be implemented using a shift register including a transistor formed by the same process as that used for TFTs disposed in the pixel region. Alternatively, the gating drive circuit can be implemented as an integrated circuit (IC) and can be disposed at the drive circuit components without being embedded in the first substrate 211.

[0247] The second substrate 213 may be an upper substrate or a color filter array substrate. For example, the second substrate 213 may include a pixel pattern, the pixel pattern including an opening region overlapping each pixel region formed on the first substrate 211, and may include a color filter layer formed at the opening region. The size of the second substrate 213 may be smaller than that of the first substrate 211, but the exemplary embodiments of this disclosure are not limited thereto. For example, the second substrate 213 may overlap with the remainder of the first substrate 211 except for the first periphery. A sealant may be used to bond the second substrate 213 to the remainder of the first substrate 211 except for the first periphery, with a liquid crystal layer located between the second substrate 213 and the first substrate 211.

[0248] The liquid crystal layer can be disposed between the first substrate 211 and the second substrate 213. For example, the liquid crystal layer may include a liquid crystal containing liquid crystal molecules, wherein the alignment orientation of the liquid crystal molecules is changed based on an electric field generated by a common voltage and a data voltage applied to the pixel electrode of each pixel.

[0249] The first polarizing member 215 can be attached to the rear surface of the first substrate 211 and can polarize the light incident from the backlight member 230 and propagating to the liquid crystal layer. The second polarizing member 217 can be attached to the top surface of the second substrate 213 and can polarize the light passing through the second substrate 213 and incident on the second substrate 213 to release polarized light to the front surface of the device.

[0250] The display panel 210 can drive the liquid crystal layer based on the electric field generated in each pixel by the data voltage applied to each pixel and the common voltage. Therefore, the display panel 210 can display images based on light passing through the liquid crystal layer.

[0251] The display panel 210 according to an exemplary embodiment of the present disclosure may also include a touch electrode layer for sensing touches applied to the front member 100 (e.g., by a user).

[0252] The touch electrode layer may include multiple touch electrodes for sensing touch. Each of the multiple touch electrodes can serve as a touch sensor for sensing touch based on mutual capacitance or self-capacitance. For example, the touch electrode layer may be implemented as a touch panel including multiple touch electrodes. For example, the touch panel may be an add-on touch panel or an in-cell touch panel.

[0253] In a display panel 210 according to another exemplary embodiment of the present disclosure, the first substrate 211 can be implemented as a color filter array substrate, and the second substrate 213 can be implemented as a TFT array substrate. For example, the display panel 210 according to another exemplary embodiment of the present disclosure may have a type in which the upper and lower portions are reversed relative to the display panel 210 of the above exemplary embodiment. For example, the pad portion of the display panel 210 according to another exemplary embodiment of the present disclosure may be covered by a separate mechanism or structure.

[0254] According to another exemplary embodiment of the present disclosure, the display panel 210 may include a curved portion that can be bent or flexed to have a curved shape or a specific radius of curvature.

[0255] The curved portion of the display panel 210 can be implemented as at least one of a first periphery and a second periphery of the display panel 210 that are parallel to each other. The first periphery and / or the second periphery of the display panel 210 (when implementing the curved portion) may include only the non-display area, or alternatively may include the periphery of the display area and the non-display area. The display panel 210 including the curved portion implemented by bending the non-display area may have a single-sided bezel curved structure or a double-sided bezel curved structure. Furthermore, the display panel 210 including the curved portion implemented by bending the periphery of the display area and the non-display area may have a single-sided active curved structure or a double-sided active curved structure.

[0256] The backlight component 230 can be disposed on the rear surface of the display panel 210 and can illuminate the rear surface of the display panel 210. For example, the backlight component 230 can be disposed between the display panel 210 and the first cover 400 and can be supported by the first cover 400.

[0257] The backlight component 230 according to an exemplary embodiment of this disclosure may include a light guide plate 231, a light source component 233, a reflector 235, and an optical component 237. The structure of the backlight component 230 is not limited thereto.

[0258] The light guide plate 231 may include a light incident surface disposed at the first cover 400 to overlap with the display panel 210, and the light incident surface is disposed in at least one sidewall of the light guide plate 231. For example, the light guide plate 231 may include a light-transmitting plastic or glass material. The light guide plate 231 can transmit (or output) light incident from the light source component 233 onto the light incident surface to the display panel 210. For example, the light guide plate 231 may be referred to as a light guide member or a planar light source, etc., but the exemplary embodiments of this disclosure are not limited thereto.

[0259] The light source component 233 can illuminate light onto the light incident surface disposed at the light guide plate 231. The light source component 233 can be disposed on a side surface of the light guide plate 231 to overlap with a first periphery of the display panel 210. For example, the light source component 233 can be disposed between the guide member 300 and the first cover 400. For example, the light source component 233 can be disposed between the support portion 310 of the guide member 300 and the first cover 400. For example, the light source component 233 may include a plurality of light-emitting diode (LED) devices mounted on the light source printed circuit board and illuminating light onto the light incident surface of the light guide plate 231. For example, the guide member 300 may be a panel guide or a guide panel, but the exemplary embodiments of this disclosure are not limited thereto.

[0260] The reflector 235 can be disposed on the rear surface of the light guide plate 231. For example, the reflector 235 can be disposed between the first cover 400 and the rear surface of the light guide plate 231. The reflector 235 can reflect light incident from the light guide plate 231 back to the light guide plate 231, thereby minimizing or reducing light loss.

[0261] Optical sheet component 237 may be disposed on the front surface of light guide plate 231. For example, optical sheet component 237 may enhance the brightness characteristics of light output from light guide plate 231. For example, optical sheet component 237 may include a lower diffuser sheet, a lower prism sheet, and an upper first prism sheet, but the exemplary embodiments of this disclosure are not limited thereto. For example, optical sheet component 237 may be composed of a stacked combination of one or more sheets selected from diffuser sheet, prism sheet, dual brightness enhancement film (DBEF), and biconvex lens sheet, or it may be composed of a composite sheet having light diffusion and light convergence functions.

[0262] The display component 200 according to an exemplary embodiment of this disclosure may also include a driving circuit component.

[0263] The driving circuit components can be connected to pads disposed on a first peripheral portion of the display panel 210 and can be configured to display an image corresponding to video data provided from the display host system on each pixel of the display panel 210. For example, the driving circuit components can be connected to pads disposed on a first peripheral portion of a first substrate 211 of the display panel 210. For example, the driving circuit components can sense touch (e.g., by a user) through a plurality of touch electrodes disposed on a touch electrode layer of the display panel 210.

[0264] According to an exemplary embodiment of this disclosure, a driving circuit component may be disposed at the first cover 400. For example, the driving circuit component may extend from a first periphery of the display panel 210 along the side and rear surfaces of the first cover 400. For example, the driving circuit component may be fixed to or connected to the rear surface of the first cover 400. For example, the driving circuit component may include at least one flexible circuit film, at least one data driver integrated circuit (IC), a printed circuit board (PCB), control circuitry, and a connector, but the construction of the driving circuit component is not limited thereto. The connector may be a user connector, but the exemplary embodiment of this disclosure is not limited thereto.

[0265] Each of at least one flexible circuit film can be attached to a pad portion disposed at a first periphery of a first substrate 211 of a display panel 210 using a film attachment process. Each of at least one flexible circuit film can be bent to surround a side surface (or a first side surface) of one or both of the display panel 210 and the backlight component 230, and can be attached to a PCB at a periphery (or a first rear periphery) of the rear surface of the first cover 400.

[0266] At least one data driver IC can be individually mounted at each of the at least one flexible circuit film. The data driver IC can receive pixel data and data control signals provided from a control circuit, convert the pixel data into pixel-based analog data signals based on the data control signals, and provide analog data voltages to the corresponding data lines. Optionally, each of the at least one data driver IC can be directly mounted on the first periphery of the first substrate 211 via a chip bonding process and can be connected to multiple data lines. In this exemplary configuration, at least one flexible circuit film can be omitted.

[0267] The PCB can be jointly connected to at least one flexible circuit film. For example, the PCB can be connected to the display panel 210 via at least one flexible circuit film. For example, the PCB can be electrically connected to the other side of at least one flexible circuit film using a film attachment process with anisotropic conductive film, and can be positioned at the first rear periphery of the first cover 400 based on the curvature of at least one flexible circuit film.

[0268] The control circuitry can be located (or mounted) on the PCB. For example, the control circuitry can receive timing synchronization signals and video data provided from the display host system via a connector. For example, the timing synchronization signals may include vertical synchronization signals, horizontal synchronization signals, data enable signals, and master clock signals, but the exemplary embodiments of this disclosure are not limited thereto.

[0269] The control circuit can generate gating control signals for controlling the drive timing of the gating drive circuit and data control signals for controlling the drive timing of at least one data driver IC, based on a timing synchronization signal. For example, the gating control signals may include at least one gating start signal and multiple gating shift clocks. The data control signals may include source start signals, source shift clocks, and source output enable signals.

[0270] The connector can receive various signals, including audio signals, from the display host system and can provide the received signals to the control circuit.

[0271] According to an exemplary embodiment of this disclosure, the driving circuit component may further include a touch driving circuit connected to the touch electrode layer of the display panel 210.

[0272] The touch driving circuit can sense touch (e.g., by a user) through each of a plurality of touch electrodes disposed on the touch electrode layer to generate raw touch data, and can send coordinate information about the user's touch to the display host system based on the generated raw touch data.

[0273] The display host system (or host system) may include a motherboard, various circuits mounted on the motherboard, various storage media, peripheral devices, a keyboard, and a power supply. The various circuits mounted on the motherboard may include a central control circuit for processing various information, an image processing circuit for processing data according to the control of the central control circuit, and a sound processing circuit for processing sound according to the control of the central control circuit. The display host system can process various information, generate timing synchronization signals and video data and provide them to the control board, and generate drive signals including sound signals or haptic feedback signals and provide them to the control board. For example, the sound signal may or may not be synchronized with the video data.

[0274] The display host system can execute an application associated with touch coordinates corresponding to touch coordinate information provided from the touch driver circuitry, or it can execute a user interface based on user touch input. Furthermore, the display host system can generate drive signals that include haptic feedback signals corresponding to the touch coordinate information provided from the touch driver circuitry.

[0275] According to an exemplary embodiment of this disclosure, the guide member 300 can be disposed between the display panel 210 and the backlight member 230. For example, the guide member 300 can be disposed between the rear peripheral portion EP of the display panel 210 and the front peripheral portion of the backlight member 230. For example, the guide member 300 can support the rear peripheral portion EP of the display panel 210. For example, the guide member 300 can cover one or both of the front peripheral portion and the side surface (or lateral surface) of the backlight member 230. For example, the guide member 300 can cover and support the side surface of the first cover 400.

[0276] According to an exemplary embodiment of this disclosure, the guide member 300 can maintain the spacing between the display panel 210 and the backlight member 230, and can provide a sound transmission space (STS) between the display panel 210 and the backlight member 230.

[0277] According to an exemplary embodiment of this disclosure, the guide member 300 may have a quadrilateral frame shape, the quadrilateral frame shape including an opening that overlaps with the central portion CP of the display panel 210, excluding the rear peripheral portion EP. The construction of the guide member 300 is not limited thereto.

[0278] According to an exemplary embodiment of this disclosure, because the guide member 300 has a quadrilateral frame shape including an opening, the guide member 300 can provide a sound transmission space STS between the rearmost surface of the display panel 210 and the frontmost surface of the backlight member 230, which face each other, wherein an opening is provided between the rearmost surface of the display panel 210 and the uppermost surface of the backlight member 230, thereby preventing or minimizing leakage (or loss) of the sound pressure level transmitted to the sound transmission space STS. The sound transmission space STS may function as a sound pressure generation space in which sound pressure is generated based on the vibration of the backlight member 230. The sound transmission space STS may additionally or optionally function as a panel vibration space that enables the vibration of the display panel 210 to vibrate smoothly based on the sound pressure level.

[0279] Reference Figure 3 and Figure 4 According to an exemplary embodiment of this disclosure, the second connecting member 350 may be disposed between the peripheral portion EP of the rear surface of the display panel 210 and the guide member 300. The third connecting member 370 may be disposed between the peripheral portion of the front surface of the backlight member 230 and the guide member 300.

[0280] According to an exemplary embodiment of this disclosure, the guide member 300 can be disposed or positioned at the rear peripheral portion EP of the display panel 210 via the second connecting member 350. For example, the guide member 300 can be disposed at the front peripheral portion of the backlight member 230 via the third connecting member 370.

[0281] According to an exemplary embodiment of this disclosure, the front surface of the second connecting member 350 may be disposed at or connected to the rear peripheral portion EP of the first substrate 211 of the display panel 210, and the rear surface of the second connecting member 350 may be disposed on or connected to the front surface of the guide member 300. Therefore, the display panel 210 and the guide member 300 can be connected to the second connecting member 350. Thus, the display panel 210 can be fixed or connected to the guide member 300 using the second connecting member 350.

[0282] The second connecting member 350 may be disposed at the rear peripheral portion EP of the first substrate 211 to surround the lateral surface of the first polarizing member 215, thereby preventing lateral light leakage in the first polarizing member 215. The second connecting member 350 may provide a sound transmission space STS between the display panel 210 and the guide member 300. For example, the sound transmission space STS may be formed as a four-sided sealed type or a closed loop type by one or both of the guide member 300 and the second connecting member 350, but the exemplary embodiments of this disclosure are not limited thereto.

[0283] According to an exemplary embodiment of this disclosure, the front surface of the third connecting member 370 may be disposed on or connected to the rear surface of the guide member 300. The rear surface of the third connecting member 370 may be disposed on the front surface of the backlight member 230; therefore, the guide member 300 and the backlight member 230 may be connected to the third connecting member 370. Thus, the backlight member 230 can be fixed or connected to the guide member 300 via the third connecting member 370.

[0284] According to an exemplary embodiment of this disclosure, the guide member 300 may further include a groove 390 into which a third connecting member 370 may be inserted (or received), and the third connecting member 370 may be inserted (or received) in the groove 390. For example, the groove 390 may be formed at the rear surface of the guide member 300 overlapping the front surface of the backlight member 230. For example, the third connecting member 370 may have a thickness (or height) that allows the backlight member 230 to be connected to the guide member (panel guide) 300, regardless of whether the third connecting member 370 is inserted (or received) in the groove 390. For example, within tolerance, the third connecting member 370 may be configured to have a thickness (or height) equal to or greater than the thickness (or height) of the groove 390. According to embodiments of this disclosure, because the third connecting member 370 may be inserted or received in the groove 390, the increase in device thickness caused by the third connecting member 370 may be reduced or minimized. Furthermore, by adjusting the height of the sound transmission space STS, the thickness or height of the third connecting member 370 can be excluded. Therefore, the height of the sound transmission space STS can be adjusted to a combination of the thickness or height of the guide member 300 and the second connecting member 350. Thus, the height of the sound transmission space STS can be controlled, thereby providing a device for outputting the desired sound.

[0285] According to exemplary embodiments of this disclosure, the second connecting member 350 and the third connecting member 370 may include acrylic-based or polyurethane-based adhesive members, but the exemplary embodiments of this disclosure are not limited thereto. For example, the second connecting member 350 and the third connecting member 370 may include acrylic-based adhesive members having relatively strong adhesive force and relatively high hardness, thereby guiding the vibration of member 300 to be sufficiently transmitted to display panel 210. In this case, the second connecting member 350 and the third connecting member 370 may include an acrylic-based adhesive layer, a double-sided foam adhesive pad, or an acrylic-based adhesive resin cured layer. However, the embodiments of this disclosure are not limited to such examples.

[0286] According to exemplary embodiments of this disclosure, the guide member 300 may include a plastic material, a metal material, or a combination of plastic and metal materials, but the material of the guide member 300 is not limited thereto. For example, the guide member 300 may be used as a vibration transmission member to transmit vibrations generated by the vibration device 500 to the rear peripheral portion EP of the display panel 210. Therefore, while maintaining the rigidity of the display panel 210, vibrations generated by the vibration device 500 can be transmitted from the guide member 300 to the display panel 210 without loss. For example, the guide member 300 may include a metal material for transmitting vibrations generated by the vibration device 500 to the display panel 210 while maintaining the rigidity of the display panel 210, but exemplary embodiments of this disclosure are not limited thereto.

[0287] The guide member 300 according to an exemplary embodiment of this disclosure may include a support portion 310 and a lateral portion 330. For example, the guide member 300 may have a cross-sectional structure with a gamma shape (┓) or a rotated L shape (┏) based on the connection structure of the support portion 310 and the lateral portion 330.

[0288] According to an exemplary embodiment of this disclosure, the support portion 310 can be disposed between the display panel 210 and the backlight component 230. For example, the support portion 310 can be disposed between the rear peripheral portion EP of the display panel 210 and the front peripheral portion of the backlight component 230, and can support the rear peripheral portion EP of the display panel 210.

[0289] According to an exemplary embodiment of this disclosure, the support portion 310 can maintain the spacing between the display panel 210 and the backlight component 230. For example, the support portion 310 can provide a sound transmission space (STS) between the display panel 210 and the backlight component 230. For example, the support portion 310 can have a quadrilateral frame shape, which includes an opening that overlaps with the central portion CP of the display panel 210, excluding the rear peripheral portion EP, and the construction of the support portion 310 is not limited to this particular example.

[0290] According to an exemplary embodiment of this disclosure, the second connecting member 350 may be disposed on the front surface of the support portion 310, and the third connecting member 370 may be disposed on the rear surface of the support portion 310. For example, a groove 390 may be disposed on the rear surface of the support portion 310.

[0291] According to an exemplary embodiment of this disclosure, the lateral portion (or guide sidewall) 330 can be connected to the support portion 310 and can cover the side surface (or lateral surface) of the backlight member 230. For example, the lateral portion 330 can cover the side surface (or lateral surface) of the first cover 400. For example, the lateral portion 330 can be bent from the support portion 310 to the side surface of the first cover 400 and can cover and support the side surface of the first cover 400.

[0292] The first cover 400 can be configured to support the display member 200 and can be configured to cover the rear surface of the display member 200. Furthermore, the first cover 400 can be configured to support the vibration device 500. The first cover 400 can serve as a vibrating plate. The first cover 400 can comprise a metallic material or a metallic alloy material. For example, the first cover 400 can comprise any one or more of aluminum (Al), magnesium (Mg), magnesium (Mg) alloy, magnesium-lithium (Mg-Li) alloy, and aluminum (Al) alloy materials, but the exemplary embodiments disclosed herein are not limited to this specific example.

[0293] The first cover 400 may be configured to include a rear portion 410 and a side portion 430. The rear portion 410 may be configured to support the rear surface of the display member 200. The side portion 430 may be connected to a peripheral portion of the rear portion 410 and may cover the side surface of the display member 200, but the construction of the first cover 400 is not limited thereto.

[0294] The rear portion 410 can be configured to cover the rear surface of the display member 200 and to support the display member 200. For example, the rear portion 410 can be formed as a plate structure. For example, the rear portion 410 can be configured to support the backlight member 230 of the display member 200 and can support the vibration device 500. For example, the rear portion 410 can directly contact the rear surface of the backlight member 230. For example, the rear portion 410 can directly contact the rear surface of the reflective sheet 235 of the backlight member 230. For example, the rear portion 410 can directly contact the rear surface of the backlight member 230, and thus can transmit vibrations generated by the vibration of the vibration device 500 to the backlight member 230.

[0295] The rear portion 410 (or the first cover 400) may include a central region (or first cover area) MA and a peripheral region (or second cover area) EA. For example, the central region (or first cover area) MA of the rear portion 410 (or the first cover 400) may correspond to (or overlap with) the central portion CP of the display member 200. For example, the peripheral region (or second cover area) EA of the rear portion 410 (or the first cover 400) may correspond to (or overlap with) the peripheral portion EP of the display member 200.

[0296] The middle region MA of the rear portion 410 (or the first cover 400) may include a first middle region (or left middle region) MA1 and a second middle region (or right middle region) MA2. For example, the first middle region (or left middle region) MA1 of the rear portion 410 (or the first cover 400) may correspond to (or overlap with) the first central portion CP1 of the display member 200. For example, the second middle region (or right middle region) MA2 of the rear portion 410 (or the first cover 400) may correspond to (or overlap with) the second central portion CP2 of the display member 200.

[0297] The peripheral region EA of the rear portion 410 (or the first cover 400) may include a first peripheral region (or left peripheral region) EA1 and a second peripheral region (or right peripheral region) EA2. For example, the first peripheral region (or left peripheral region) EA1 of the rear portion 410 (or the first cover 400) may correspond to (or overlap with) the first peripheral portion EP1 of the display member 200. For example, the second peripheral region (or right peripheral region) EA2 of the rear portion 410 (or the first cover 400) may correspond to (or overlap with) the second peripheral portion EP2 of the display member 200.

[0298] According to an exemplary embodiment of this disclosure, a first intermediate region MA1 and a first peripheral region EA1 may constitute a first region (or left region) A1 of the rear portion 410 (or the first cover 400). For example, a second intermediate region MA2 and a second peripheral region EA2 may constitute a second region (or right region) A2 of the rear portion 410 (or the first cover 400). For example, the first region A1 may correspond to (or overlap with) the first portion P1 of the display member 200, and the second region A2 may correspond to (or overlap with) the second portion P2 of the display member 200.

[0299] The lateral portion 430 may be disposed between the backlight component 230 and the guide member 300. For example, the lateral portion 430 may be disposed between the lateral surface of the backlight component 230 and the lateral portion 330 of the guide member 300.

[0300] According to an exemplary embodiment of this disclosure, the lateral portion 430 can be connected to the backlight component 230 via a fourth connecting member 430a. For example, the fourth connecting member 430a can be disposed between the lateral portion 430 and the backlight component 230. For example, the lateral portion 430 can be connected to the guide member 300 via a fifth connecting member 430b. For example, the fifth connecting member 430b can be disposed between the lateral portion 430 of the first cover 400 and the lateral portion 330 of the guide member 300.

[0301] According to exemplary embodiments of this disclosure, the fourth connecting member 430a and the fifth connecting member 430b may include acrylic-based or polyurethane-based adhesive members, but the exemplary embodiments of this disclosure are not limited thereto. For example, the fourth connecting member 430a and the fifth connecting member 430b may include an acrylic-based adhesive material having relatively strong adhesion and relatively high hardness, so that vibrations of the guide member 300 can be adequately transmitted to the display panel 210.

[0302] Reference Figures 2 to 4 The first cover 400 according to an exemplary embodiment of the present disclosure may further include a first hole 411. For example, the first hole 411 may be provided at the rear portion 410 of the first cover 400.

[0303] The first hole 411 may be provided at the first cover 400 overlapping with the vibration device 500, and the rear surface of the backlight component 230 may be exposed through the first hole 411. For example, the first hole 411 may ensure a vibration space for the first cover 400 through which sound generated by the vibration of the vibration device 500 propagates toward the front surface of the device. For example, the reflector 235 of the backlight component 230 may be exposed through the first hole 411 toward the rear surface of the first cover 400. For example, the first hole 411 may be provided at each of the first region A1 and the second region A2 of the rear portion 410. For example, the first hole 411 may include a first (1-1) hole 411-1 provided at the first region A1 and a second (1-2) hole 411-2 provided at the second region A2. In this embodiment of the present disclosure, the first (1-1) hole 411-1 may be a first hole, and the second (1-2) hole 411-2 may be a second hole, but this embodiment of the present disclosure is not limited to these designations.

[0304] According to an exemplary embodiment of this disclosure, the (1-1) hole 411-1 in or through the first cover 400 can be located at the first intermediate region MA1 or the first peripheral region EA1, or it can be located above the first intermediate region MA1 or the first peripheral region EA1. For example, the (1-2) hole 411-2 in or through the first cover 400 can be located at the second intermediate region MA2 or the second peripheral region EA2, or it can be located above the second intermediate region MA2 or the second peripheral region EA2.

[0305] The first hole 411 can provide a first gap space between the display component 200 and the vibration device 500. For example, the first hole 411 can provide a first gap space between the backlight component 230 of the display component 200 and the vibration device 500. For example, the first hole 411 can provide a first gap space between the reflector 235 of the backlight component 230 and the vibration device 500. For example, the first gap space can be a vibration space based on the drive of the vibration device 500, a sound pressure level space (or sound portion) based on the vibration of the vibration device 500, or a sound wave propagation path (or sound energy incident portion), through which the sound waves generated by the vibration of the vibration device 500 can directly propagate to the display component 200, but the exemplary embodiments of this disclosure are not limited thereto.

[0306] According to an exemplary embodiment of this disclosure, the size (or width) of the first hole 411 can be smaller than the size (or width) of the vibration device 500. When the total size (or total width) of the first hole 411 is larger than the total size of the corresponding vibration device 500, the vibration device 500 can be inserted into (or accommodated) the first hole 411. Therefore, the vibration device 500 does not need to be located at the rear portion 410, eliminating the need for a separate mechanism. Thus, even without a separate mechanism, when the total size (total width) of the first hole 411 is smaller than the total size of the corresponding vibration device 500, the vibration device 500 can be located at the rear portion 410 to overlap with the first hole 411. For example, the first hole 411 according to an exemplary embodiment of this disclosure can have the same shape as the vibration device 500, or it can have a square or circular shape, but the exemplary embodiment of this disclosure is not limited to these.

[0307] Reference Figure 3 and Figure 4 According to an exemplary embodiment of this disclosure, the first cover 400 may further include a reinforcing portion 450. The reinforcing portion 450 may increase or supplement the rigidity of the first cover 400. For example, the reinforcing portion 450 may protrude rearward from the rear portion 410 by a certain height, thereby increasing or supplementing the rigidity of the first cover 400. For example, the reinforcing portion 450 may be a forming portion of the first cover 400.

[0308] According to an exemplary embodiment of this disclosure, the reinforcing portion 450 may be formed along the peripheral region EA of the rear portion 410. For example, the reinforcing portion 450 may be formed in the region where the rear portion 410 connects to the lateral portion 430. For example, the reinforcing portion 450 may project rearwardly from the rear surface of the rear portion 410 to include an inclined surface sloping from an end or side of the rear portion 410. The lateral portion 430 may be connected to an end or side of the reinforcing portion 450.

[0309] According to an exemplary embodiment of this disclosure, the reinforcing portion 450 may include a first reinforcing portion (or inclined surface) 451 or a second reinforcing portion (or flat surface) 453. For example, the first reinforcing portion (or inclined surface) 451 may be configured (or extended) to be inclined in a rearward direction from one end or side of the rear portion 410. For example, the second reinforcing portion (or flat surface) 453 may be configured (or extended) horizontally from an end or side of the first reinforcing portion 451 in a first direction X toward the lateral portion 430. For example, an end or side of the second reinforcing portion 453 may be connected to the lateral portion 430.

[0310] The vibration device 500 can be disposed on the rear surface of the first cover 400 and can cause the display component 200 to vibrate. For example, the vibration device 500 can be supported by the first cover 400. For example, the vibration device 500 can be disposed at the rear portion 410 to cover the first hole 411 disposed at the rear portion 410 of the first cover 400.

[0311] The vibration device 500 according to the exemplary embodiments of this disclosure may be a diaphragm vibration device. For example, the vibration device 500 may be referred to as a piezoelectric device, a flexible sound generator, a flexible actuator, a flexible loudspeaker, a flexible piezoelectric loudspeaker, a diaphragm actuator, a diaphragm-piezoelectric composite actuator, a diaphragm loudspeaker, a diaphragm-piezoelectric loudspeaker, or a diaphragm-piezoelectric composite loudspeaker, etc., but the exemplary embodiments of this disclosure are not limited thereto.

[0312] According to an exemplary embodiment of this disclosure, the vibration device 500 may vibrate to cause the display member 200 to vibrate based on a drive signal including a tactile feedback signal and / or a sound signal. Therefore, the vibration device 500 may generate sound S based on the vibration of the display member 200, or may generate tactile feedback (or tactile vibration) in response to touch (e.g., by a user).

[0313] According to exemplary embodiments of this disclosure, the vibration device 500 can cause a first portion P1 of the display member 200 to vibrate, thereby generating a first sound S1 based on the vibration of the first portion P1, or it can generate a first tactile feedback (or tactile vibration) in response to touch. For example, the vibration device 500 can cause a second portion P2 of the display member 200 to vibrate, thereby generating a second sound S2 based on the vibration of the second portion P2, or it can generate a second tactile feedback (or tactile vibration) in response to touch.

[0314] The vibration device 500 according to the exemplary embodiments of this disclosure may include a plurality of vibration devices, such as a first vibration device 510 and a second vibration device 530, but the exemplary embodiments of this disclosure are not limited thereto.

[0315] The first vibration device 510 may include at least one or more first (1-1) vibration devices 510-1. For example, the first vibration device 510 may include one first (1-1) vibration device 510-1. The first (1-1) vibration device 510-1 according to an exemplary embodiment of the present disclosure may be substantially the same as the first vibration device 510.

[0316] The second vibration device 530 may include at least one or more first (2-1) vibration devices 530-1. For example, the second vibration device 530 may include one first (2-1) vibration device 530-1. The first (2-1) vibration device 530-1 according to the exemplary embodiments of this disclosure may be substantially the same as the second vibration device 530. Each of the first (1-1) vibration device 510-1, the first (1-2) vibration device 510-2, the first (2-1) vibration device 530-1, and the second (2-2) vibration device 530-2 in the embodiments of this disclosure may be a first vibration device, a third vibration device, a second vibration device, and a fourth vibration device, but the embodiments of this disclosure are not limited to these numbers.

[0317] According to an exemplary embodiment of this disclosure, the (1-1) vibration device 510-1 may include a plate 511 and a vibration generator 513, and the (2-1) vibration device 530-1 may include a plate 531 and a vibration generator 533. The construction of each of the (1-1) vibration device 510-1 and the (2-1) vibration device 530-1 is not limited thereto. The plate 511 in this embodiment may be a first plate, and the plate 531 in this embodiment may be a second plate, but this embodiment is not limited to these designations.

[0318] The first vibration device 510 can be set in the first region A1 of the first cover 400 (or the rear part 410) and can cover the (1-1) hole 411-1 set in the first region A1.

[0319] The first vibration device 510 can vibrate a first region A1 of the first cover 400 based on a first drive signal including a tactile feedback signal and / or an audio signal, so as to vibrate a first portion P1 of the display member 200. Therefore, the first vibration device 510 can generate a first sound S1 of a first tone vocal cord based on the vibration of the first portion P1 of the display member 200, or it can generate first tactile feedback (or tactile vibration) in response to touch (e.g., by a user).

[0320] According to an exemplary embodiment of this disclosure, the first vibration device 510 can vibrate a first region A1 of the first cover 400 in response to a first drive signal to generate a sound pressure level in the internal region (or first gap space) of the (1-1) hole 411-1 located in or through the first cover 400. Therefore, the first vibration device 510 can cause a first portion P1 of the display member 200 to vibrate to generate a first sound S1 of the first tone vocal cords or to generate first tactile feedback.

[0321] According to an exemplary embodiment of this disclosure, when the first vibration device 510 vibrates based on a first drive signal, a sound pressure level can be generated in the internal region of the (1-1) hole 411-1 by the vibration of the first region A1 of the first cover 400 based on the vibration of the first vibration device 510. A sound pressure level can be generated in the sound transmission space STS by the vibration of the backlight component 230 based on the sound pressure level generated in the sound transmission space STS. Based on the vibration of the first portion P1 of the display panel 210 by the sound pressure level generated in the sound transmission space STS, a first sound S1 of the first tone vocal cords can be output in the forward direction FD of the display panel 210, or a first tactile feedback can be generated. For example, sound waves generated by the vibration of the first vibration device 510 can be transmitted (or propagated) to the display member 200 through the (1-1) hole 411-1. Therefore, the sound pressure level characteristics and / or sound quality of the first sound S1 can be enhanced. According to an exemplary embodiment of this disclosure, sound waves generated by the vibration of the first vibration device 510 can be directly transmitted (or propagated) to the display member 200 through the (1-1) hole 411-1. Therefore, the sound pressure level characteristics and / or sound quality of the first sound S1 can be enhanced.

[0322] The second vibration device 530 can vibrate the second region A2 of the first cover 400 based on a second drive signal including a tactile feedback signal and / or an audio signal, thereby causing the second portion P2 of the display member 200 to vibrate. Therefore, the second vibration device 530 can generate a second sound S2 of the second tone vocal cords based on the vibration of the second portion P2 of the display member 200, or it can generate second tactile feedback (or tactile vibration) in response to touch. For example, the second vibration device 530 can vibrate the second region A2 of the first cover 400 to directly vibrate the second portion P2 of the display member 200, thus generating a second sound S2 of the second tone vocal cords, or it can generate second tactile feedback (or tactile vibration) in response to touch (e.g., by a user).

[0323] According to an exemplary embodiment of this disclosure, the second vibration device 530 can vibrate a second region A2 of the first cover 400 in response to a second drive signal to generate a sound pressure level in the internal region (or first gap space) located in or through the (1-2) holes 411-2 of the first cover 400. Therefore, the second vibration device 530 can cause the second portion P2 of the display member 200 to vibrate to generate a second sound S2 from the second tone vocal cords or to generate second tactile feedback.

[0324] According to an exemplary embodiment of this disclosure, when the second vibration device 530 vibrates based on a second drive signal, a sound pressure level can be generated in the internal region of the (1-2) holes 411-2 by the vibration of the second region A2 of the first cover 400 based on the vibration of the second vibration device 530. A sound pressure level can be generated in the sound transmission space STS by the vibration of the backlight component 230 based on the sound pressure level generated in the sound transmission space STS. Based on the vibration of the second portion P2 of the display panel 210 by the sound pressure level generated in the sound transmission space STS, a second sound S2 of the second tone vocal cords can be output in the forward direction FD of the display panel 210, or a second tactile feedback can be generated. For example, sound waves generated by the vibration of the second vibration device 530 can be transmitted (or propagated) to the display member 200 through the (1-2) holes 411-2. Therefore, the sound pressure level characteristics and / or sound quality of the second sound S2 can be enhanced. According to an exemplary embodiment of this disclosure, sound waves generated by the vibration of the second vibration device 530 can be directly transmitted (or propagated) to the display member 200 through the (1-2) holes 411-2. Therefore, the sound pressure level characteristics and / or sound quality of the second sound S2 can be enhanced.

[0325] According to exemplary embodiments of the present disclosure, plates 511 and 531 can be disposed at the rear portion 410 of the first cover 400 via sixth connecting members 515 and 535, respectively. For example, plates 511 and 531 can respectively cover or pass through the first holes 411-1 and 411-2 located in or through the rear portion 410 of the first cover 400. For example, the dimensions (widths) of plates 511 and 531 can be larger than the first holes 411-1 and 411-2, respectively. The sixth connecting member 515 of the present disclosure embodiments can be a sixth connecting member, and the sixth connecting member 535 of the present disclosure embodiments can be a seventh connecting member, but the present disclosure embodiments are not limited to these designations.

[0326] According to an exemplary embodiment of this disclosure, the plate (or first plate) 511 of the (1-1) vibration device 510-1 may be disposed at the rear portion 410 of the first cover 400. For example, the plate (or first plate) 511 of the (1-1) vibration device 510-1 may be disposed at the rear portion 410 of the first cover 400 via the (6-1) connecting member 515. For example, the plate (or first plate) 511 of the (1-1) vibration device 510-1 may cover the (1-1) hole 411-1 of the rear portion 410. For example, the size of the plate (or first plate) 511 of the (1-1) vibration device 510-1 may be greater than or equal to the size of the vibration generator 513.

[0327] According to an exemplary embodiment of this disclosure, the plate (or second plate) 531 of the (2-1) vibration device 530-1 may be disposed at the rear portion 410 of the first cover 400. For example, the plate (or second plate) 531 of the (2-1) vibration device 530-1 may be disposed at the rear portion 410 of the first cover 400 via the (6-2) connecting member 535. For example, the plate (or second plate) 531 of the (2-1) vibration device 530-1 may cover the (1-2) holes 411-2 of the rear portion 410. For example, the size of the plate (or second plate) 531 of the (2-1) vibration device 530-1 may be greater than or equal to the size of the vibration generator 533.

[0328] Plate (or first plate) 511 may be a vibrating plate that generates sound pressure levels in the internal region of the (1-1)th hole 411-1 of the rear portion 410 of the first cover 400. Plate (or second plate) 531 may be a vibrating plate that generates sound pressure levels in the internal region of the (1-2)th hole 411-2 of the rear portion 410. Plates 511 and 531 according to exemplary embodiments of this disclosure may include any one or more metallic materials such as stainless steel, aluminum (Al), magnesium (Mg), magnesium alloys, magnesium-lithium (Mg-Li) alloys, and aluminum alloys, but exemplary embodiments of this disclosure are not limited thereto.

[0329] The (6-1) connecting member 515 may be disposed near the (1-1) hole 411-1 between the plate 511 and the rear portion 410, and may connect (or fix) the vibration generator 513 to the rear portion 410. The (6-1) connecting member 515 may include double-sided adhesive tape or double-sided foam tape, which includes an adhesive layer. The adhesive layer of the (6-1) connecting member 515 according to an exemplary embodiment of the present disclosure may include an acrylic-based or polyurethane-based adhesive. For example, the adhesive layer of the (6-1) connecting member 515 may include a polyurethane-based adhesive material that has relatively ductile properties compared to an acrylic-based adhesive material with relatively high hardness, thereby minimizing the vibration transmitted from the vibration generator 513 to the rear portion 410, but the exemplary embodiments of the present disclosure are not limited thereto.

[0330] The (6-2) connecting member 535 may be disposed near the (1-2) holes 411-2 between the plate 531 and the rear portion 410. Therefore, the (6-2) connecting member 535 can connect (or fix) the vibration generator 533 to the rear portion 410. The (6-2) connecting member 535 may include double-sided tape or double-sided foam tape, which includes an adhesive layer. The adhesive layer of the (6-2) connecting member 535 according to an exemplary embodiment of this disclosure may include an acrylic-based or polyurethane-based adhesive. For example, the adhesive layer of the (6-2) connecting member 535 may include a polyurethane-based adhesive material that has relatively ductile properties compared to an acrylic-based adhesive material with relatively high hardness, thereby minimizing the vibration transmitted from the vibration generator 533 to the rear portion 410; however, the exemplary embodiments of this disclosure are not limited thereto.

[0331] Vibration generators 513 and 533 can be disposed on the rear surfaces of plates 511 and 531. Vibration generators 513 and 533 can be disposed on plates 511 and 531 and can cause plates 511 and 531 to vibrate. Vibration generators 513 and 533 can overlap with the first holes 411-1 and 411-2 of the rear portion 410. For example, vibration generators 513 and 533 can be disposed on the rear surfaces of plates 511 and 531 to overlap with the first holes 411-1 and 411-2 of the rear portion 410. For example, vibration generators 513 and 533 can be disposed on plates 511 and 531 by seventh connecting members 517 and 537. The seventh connecting member 517 in this embodiment can be an eighth connecting member, and the seventh connecting member 537 in this embodiment can be a ninth connecting member, but this embodiment is not limited to these designations.

[0332] According to an exemplary embodiment of this disclosure, the vibration generator (or first vibration generator) 513 of the (1-1) vibration device 510-1 can be disposed on the rear surface of the first plate 511. For example, the vibration generator (or first vibration generator) 513 of the (1-1) vibration device 510-1 can be disposed on the rear surface of the first plate 511 via the (7-1) connecting member 517. For example, the vibration generator (or first vibration generator) 513 of the (1-1) vibration device 510-1 can overlap with the (1-1) hole 411-1 of the rear portion 410 of the first cover 400. According to an exemplary embodiment of this disclosure, the vibration generator (or second vibration generator) 533 of the (2-1) vibration device 530-1 can be disposed on the rear surface of the second plate 531. For example, the vibration generator (or second vibration generator) 533 of the (2-1) vibration device 530-1 can be disposed on the rear surface of the second plate 531 via the (7-2) connecting member 537. For example, the vibration generator (or second vibration generator) 533 of the (2-1) vibration device 530-1 can overlap with the (1-2) hole 411-2 of the rear portion 410.

[0333] According to an exemplary embodiment of this disclosure, a second cover 700 may be disposed on the rear surface of the first cover 400. The second cover 700 may accommodate (or house) a display member 200 to which one or more vibration devices 500 are mounted (or connected), and may cover the rear surface of the first cover 400, the lateral surfaces of the first cover 400, and the lateral surfaces of the display member 200. For example, the second cover 700 may be referred to as a machine cover, rear machine cover, outermost cover, outermost machine cover, product cover, or outermost product cover, etc., but the exemplary embodiments of this disclosure are not limited thereto.

[0334] The second cover 700 according to an exemplary embodiment of the present disclosure may include a rear structure 710 and a side structure 730.

[0335] The rear structure 710 may be the outermost rear structure located on the rear surface of the device. For example, the rear structure 710 may support the display member 200 on which the vibration device 500 is installed and may cover the rear surface of the display member 200.

[0336] The lateral structure 730 may be the outermost lateral structure disposed on the lateral surface of the device. For example, the lateral structure 730 may be connected to the periphery of the rear structure 710 and may cover at least one or more of the rear surface of the first cover 400, the lateral surface of the second cover 700, and the lateral surface of the display member 200.

[0337] Reference Figure 2The second cover 700 according to an exemplary embodiment of this disclosure may further include a cover housing 750. For example, the cover housing 750 may completely accommodate (or house) the vibration device 500 and may be implemented at the rear structure 710 to completely cover the vibration device 500.

[0338] For example, the enclosure 750 can provide an enclosed space between the rear portion 410 of the first cover 400 and the rear structure 710, thereby enhancing the characteristics of the sound generated by the vibrating device 500. For example, the enclosed space provided by the enclosure 750 can be used as a space for resonance effects, and the sound pressure level generated by the vibrating device 500 can be amplified based on the resonance effects in the enclosure 750. For example, the enclosure 750 can be referred to as a speaker enclosure, sound component, or resonant section, etc., but the exemplary embodiments of this disclosure are not limited thereto.

[0339] According to exemplary embodiments of this disclosure, the device may include a first component 600. For example, the first component 600 may be disposed on the rear surface of the first cover 400. For example, the first component 600 may be disposed on the rear surface of the first cover 400 via an eighth connecting member 650. For example, the first component 600 may be disposed between the first cover 400 and the second cover 700. For example, the first component 600 may be configured to cover the entire vibrating device 500. For example, the first component 600 may cover the first hole 411 disposed on the first cover 400. For example, the first component 600 may acoustically seal or separate the space where the vibrating device 500 is disposed. For example, the first component 600 may acoustically seal or separate the space where the first vibrating device 510 is disposed and the space where the second vibrating device 530 is disposed. The first component 600 may prevent or reduce interference between the sound generated in the space where the first vibrating device 510 is disposed and the sound generated in the space where the second vibrating device 530 is disposed, thereby preventing or reducing the degradation of sound characteristics. The first component 600 may be referred to as a housing, rear housing, vibration module box, vibration module cover, vibration box, or speaker, but the exemplary embodiments of this disclosure are not limited thereto. For example, the first component 600 may be a module frame component or a second component, and may be commonly used, but the exemplary embodiments of this disclosure are not limited thereto.

[0340] According to an exemplary embodiment of this disclosure, the eighth connecting member 650 may include double-sided adhesive tape or double-sided foam tape, which includes an adhesive layer. The adhesive layer of the eighth connecting member 650 according to an exemplary embodiment of this disclosure may include an acrylic-based or polyurethane-based adhesive member.

[0341] The first component 600 may include a (1-1) component 610 and a (1-2) component 630. The (1-1) component 610 and the (1-2) component 630 may be disposed on the rear surface of the rear portion 410 of the first cover 400. In this embodiment of the present disclosure, the (1-1) component 610 may be a first component (a first outer shell component), and the (1-2) component 630 may be a second component (a second outer shell component), but this embodiment of the present disclosure is not limited to these designations.

[0342] According to an exemplary embodiment of this disclosure, the (1-1) member 610 may be disposed at a first region A1 of the rear portion 410 of the first cover 400. For example, the (1-1) member 610 may cover the first vibration device 510. For example, the (1-1) member 610 may cover the (1-1) hole 411-1 disposed at the rear portion 410 of the first cover 400.

[0343] According to an exemplary embodiment of this disclosure, the (1-1) member 610 may have a quadrilateral shape covering the first vibration device 510, but the exemplary embodiment of this disclosure is not limited thereto. For example, the (1-1) member 610 may have a shape that is the same as or different from the shape of the first vibration device 510. For example, when the first vibration device 510 has a square shape, the (1-1) member 610 may have a square shape with a size (width) larger than that of the first vibration device 510, or it may have a circular or elliptical shape. However, the embodiment of this disclosure is not limited thereto.

[0344] The (1-1) member 610 can limit (or define) the vibration area (or vibration zone) of the display member 200 based on the first vibration device 510. For example, in the first portion P1 of the display member 200, the vibration area of ​​the first portion P1 can increase as the size of the (1-1) member 610 increases. Therefore, the low-pitched vocal cord characteristics of the left sound can be enhanced. As another exemplary embodiment of this disclosure, in the first portion P1 of the display member 200, the vibration area of ​​the first portion P1 can decrease as the size of the (1-1) member 610 decreases. Therefore, the high-pitched vocal cord characteristics of the left sound can be enhanced. Therefore, the size of the (1-1) member 610 can be set according to the desired characteristics of the vibrating vocal cords of the display member 200 based on the vibration of the first vibration device 510.

[0345] According to an exemplary embodiment of this disclosure, the (1-2) member 630 may be disposed at the second region A2 of the rear portion 410 of the first cover 400. For example, the (1-2) member 630 may cover the second vibration device 530. For example, the (1-2) member 630 may cover the (1-2) hole 411-2 disposed at the rear portion 410 of the first cover 400.

[0346] According to an exemplary embodiment of this disclosure, the (1-2) component 630 may have a quadrilateral shape covering the second vibration device 530, but the exemplary embodiment of this disclosure is not limited thereto. For example, the (1-2) component 630 may have a shape that is the same as or different from the shape of the second vibration device 530. For example, when the second vibration device 530 has a square shape, the (1-2) component 630 may have a square shape with a size (width) larger than that of the second vibration device 530, or it may have a circular or elliptical shape. However, the embodiment of this disclosure is not limited thereto.

[0347] According to an exemplary embodiment of this disclosure, the (1-2) member 630 may have the same shape as the (1-1) member 610 for symmetry between the left and right sounds. The (1-2) member 630 may have a structure symmetrical with respect to the first center line CL1 of the display member 200 with respect to the (1-1) member 610.

[0348] The (1-2) member 630 can limit (or define) the vibration area (or vibration zone) of the display member 200 based on the second vibration device 530. For example, in the second portion P2 of the display member 200, as the size of the (1-2) member 630 increases, the vibration area of ​​the second portion P2 can increase. Therefore, the low-pitched vocal cord characteristics of the right sound can be enhanced. As another exemplary embodiment of this disclosure, in the second portion P2 of the display member 200, as the size of the (1-2) member 630 decreases, the vibration area of ​​the second portion P2 can decrease, thus enhancing the high-pitched vocal cord characteristics of the right sound. Therefore, the size of the (1-2) member 630 can be set according to the desired characteristics of the vibrating vocal cords of the display member 200 based on the vibration of the second vibration device 530.

[0349] The (1-1) component 610 and the (1-2) component 630 can limit the vibration area (or vibration zone) of the first vibration device 510 and the vibration area (or vibration zone) of the second vibration device 530. Therefore, the horizontal symmetry between the left and right sounds generated based on the vibration of the display component 200 can be enhanced, and the sound pressure level characteristics and / or reproducing tone vocal cords of each of the left and right sounds can be optimized.

[0350] According to exemplary embodiments of this disclosure, plates 511 and 531, vibration generators 513 and 533, and first components 610 and 630 can constitute a vibration generating device. For example, the first plate 511, the first vibration generator 513, and the (1-1)th component 610 can constitute a first vibration generating device. For example, the second plate 531, the second vibration generator 533, and the (1-2)th component 630 can constitute a second vibration generating device.

[0351] According to an exemplary embodiment of this disclosure, because the first component 600 is provided, the air impedance of the corresponding vibrating device 500 can be controlled, thereby providing a device that allows the vocal cords to extend. Furthermore, the device according to an exemplary embodiment of this disclosure may include a diaphragm-type vibrating device, providing sound characteristics with enhanced sound pressure level and / or including high-pitched vocal cords. Additionally, the thickness of the device can be reduced, thereby providing a device with a compact structure.

[0352] Figure 5 yes Figure 3 An enlarged view of region "B" shown in the image. Figure 6 yes Figure 3 An enlarged view of region "C" shown in the diagram.

[0353] Reference Figure 5 and Figure 6 Plates 511 and 531 may have a second thickness T2 that is smaller than the first thickness T1 of the rear portion 410 of the first cover 400. Therefore, the vibration devices 510 and 530 can enhance the sound S of the mid-to-high pitch vocal bands in which the sound pressure level characteristics and / or sound quality can at least be suitable. When the second thickness T2 of plates 511 and 531 is thicker than the first thickness T1 of the rear portion 410, the vibration of vibration generators 513 and 533 may not propagate sufficiently into the internal regions of the first holes 411-1 and 411-2 of the rear portion 410 of the first cover 400. Plates 511 and 531 may vibrate based on the vibration of vibration generators 513 and 533 to generate the sound (or sound pressure level) of the mid-to-high pitch vocal bands at 3 kHz or higher, and the generated sound can propagate into the internal regions of the first holes 411-1 and 411-2.

[0354] According to an exemplary embodiment of this disclosure, the (1-1)th component 610 can individually cover the first vibration device 510. Figure 5 In the first cover 400, the (1-1) vibration device 510-1 can cover the (1-1) hole 411-1 located at the rear portion 410 of the first cover 400. Therefore, the first air gap AG1 can be located at the (1-1) member 610. For example, the internal portion of the (1-2) member 630 can include a single space and can include two or more divided spaces. In the case where the (1-2) member 630 includes two or more divided spaces, the internal area of ​​the device can be used. In the case where the (1-2) member 630 includes two or more divided spaces, the two or more spaces can be connected (or communicate) with each other through channels. For example, the (1-2) member 630 can have a sealing structure or a structure including ventilation holes (e.g., a ventilation structure).

[0355] According to an exemplary embodiment of this disclosure, the (1-1) member 610 may be disposed on the rear surface of the rear portion 410 of the first cover 400. For example, the (1-1) member 610 may be disposed on the rear surface of the rear portion 410 of the first cover 400 by means of the (8-1) connecting member 651.

[0356] The (1-1) component 610 according to an exemplary embodiment of the present disclosure may include a bottom portion 611 and a side portion 613.

[0357] According to an exemplary embodiment of this disclosure, the bottom portion 611 of the (1-1)th component 610 may be disposed in the first vibration device 510. Figure 5 In the first cover 400, the rear surface of the (1-1) vibration device 510-1 is located at the rear surface of the first vibration device 510, and may cover the rear surface of the first vibration device 510. For example, the lateral portion 613 of the (1-1) member 610 may be located at the lateral surface of the first vibration device 510, and may cover the lateral surface of the first vibration device 510. For example, the lateral portion 613 may be connected to one side (or end) of the bottom portion 611, and may be located along the periphery of the bottom portion 611. For example, one side (or one end) of the lateral portion 613 may be located at the rear surface of the rear portion 410 of the first cover 400 via the (8-1) connecting member 651. For example, the bottom portion 611 of the (1-1) member 610 may be referred to as the first bottom frame or the first bottom member, but the exemplary embodiments of this disclosure are not limited thereto. For example, the lateral portion 613 of the (1-1) member 610 may be referred to as the sidewall portion, the first lateral frame, the first sidewall frame, or the first sidewall member, but the exemplary embodiments of this disclosure are not limited thereto.

[0358] The (1-1) member 610 can limit (or define) the vibration area (or vibration zone) of the display member 200 based on the first vibration device 510. For example, in the first portion P1 of the display member 200, the vibration area of ​​the first portion P1 can increase as the size of the (1-1) member 610 increases. Therefore, the low-pitched vocal cord characteristics of the left sound can be enhanced. As another exemplary embodiment of this disclosure, in the first portion P1 of the display member 200, the vibration area of ​​the first portion P1 can decrease as the size of the (1-1) member 610 decreases. Therefore, the high-pitched vocal cord characteristics of the left sound can be enhanced. For example, the size of the (1-1) member 610 can be set according to the desired characteristics of the vibrating vocal cords of the display member 200 based on the vibration of the first vibration device 510.

[0359] According to an exemplary embodiment of this disclosure, the (1-2)th component 630 can separately cover the second vibration device 530. Figure 6In the first cover 400, the (2-1) vibration device 530-1 can cover the (1-2) hole 411-2 located at the rear portion 410 of the first cover 400. Therefore, the second air gap AG2 can be located at the (1-2) member 630. For example, the interior portion of the (1-2) member 630 can include a single space and can include two or more divided spaces. When the (1-2) member 630 includes two or more divided spaces, the interior area of ​​the device can be used. When the (1-2) member 630 includes two or more divided spaces, the two or more spaces can be connected (or communicate) with each other through channels. For example, the (1-2) member 630 can have a sealing structure or a structure including ventilation holes (e.g., a ventilation structure).

[0360] According to an exemplary embodiment of this disclosure, the (1-2) member 630 may be disposed on the rear surface of the rear portion 410 of the first cover 400. For example, the (1-2) member 630 may be disposed on the rear surface of the rear portion 410 of the first cover 400 by using the (8-2) connecting member 653.

[0361] According to an exemplary embodiment of this disclosure, the (1-2) component 630 may have the same shape as the (1-1) component 610 for symmetry between the left and right sounds, and may have a structure symmetrical with respect to the first center line CL1 of the display component 200 and the (1-1) component 610.

[0362] The (1-2) component 630 according to an exemplary embodiment of this disclosure may include a bottom portion 631 and a side portion 633.

[0363] According to an exemplary embodiment of this disclosure, the bottom portion 631 of the (1-2)th component 630 may be disposed in the second vibration device 530. Figure 6In the first cover 400, the rear surface of the (2-1) vibration device 530-1 can be located at the rear surface of the second vibration device 530, and can cover the rear surface of the second vibration device 530. For example, the lateral portion 633 of the (1-2) member 630 can be located at the lateral surface of the second vibration device 530, and can cover the lateral surface of the second vibration device 530. For example, the lateral portion 633 can be connected to one side (or end) of the bottom portion 631, and can be located along the periphery of the bottom portion 631. For example, one side (or end) of the lateral portion 633 can be located at the rear surface of the rear portion 410 of the first cover 400 via the (8-2) connecting member 653. For example, the bottom portion 631 of the (1-2) member 630 can be referred to as the second bottom frame or the second bottom member, but the exemplary embodiments of this disclosure are not limited thereto. For example, the lateral portion 633 of the (1-2) member 630 can be referred to as the sidewall portion, the second lateral frame, the second sidewall frame, or the second sidewall member, but the exemplary embodiments of this disclosure are not limited thereto.

[0364] The (1-2) component 630 can be based on the second vibration device 530. Figure 6 In this embodiment, the (2-1) vibration device 530-1 limits (or defines) the vibration area (or vibration zone) of the display member 200. For example, in the second portion P2 of the display member 200, as the size of the (1-2) member 630 increases, the vibration area of ​​the first portion P1 can increase. Therefore, the low-pitched vocal cord characteristics of the right sound can be enhanced. As another exemplary embodiment of this disclosure, in the second portion P2 of the display member 200, as the size of the (1-2) member 630 decreases, the vibration area of ​​the second portion P2 can decrease. Therefore, the high-pitched vocal cord characteristics of the right sound can be enhanced. For example, the size of the (1-2) member 630 can be set according to the desired characteristics of the vibrating vocal cords based on the vibration of the display member 200 and the vibration of the second vibration device 530.

[0365] The (1-1) component 610 and the (1-2) component 630 can limit the vibration area (or vibration zone) of the first vibration device 510 and the vibration area (or vibration zone) of the second vibration device 530. Therefore, the horizontal symmetry between the left and right sounds generated based on the vibration of the display component 200 can be enhanced, and the sound pressure level characteristics and / or reproducing tone vocal cords of each of the left and right sounds can be optimized.

[0366] According to exemplary embodiments of this disclosure, plates 511 and 531, vibration generators 513 and 533, and first components 610 and 630 can constitute a vibration generating device. For example, the first plate 511, the first vibration generator 513, and the (1-1)th component 610 can constitute a first vibration generating device. For example, the second plate 531, the second vibration generator 533, and the (1-2)th component 630 can constitute a second vibration generating device.

[0367] Figure 7 A vibration generator according to an exemplary embodiment of the present disclosure is shown. Figure 8 It is along Figure 7 The cross-sectional view taken by line II-II' shown.

[0368] Reference Figure 7 and Figure 8 Each of the vibration generators 513 and 533 according to exemplary embodiments of the present disclosure may alternately and / or repeatedly contract and expand to vibrate based on the piezoelectric effect (or piezoelectric properties). For example, each of the vibration generators 513 and 533 may alternately and / or repeatedly contract and expand based on the inverse piezoelectric effect to vibrate in the thickness direction Z, thereby directly causing the display member 200 to vibrate. For example, each of the vibration generators 513 and 533 may have a quadrilateral shape or a square shape, but exemplary embodiments of the present disclosure are not limited thereto.

[0369] Each of the vibration generators 513 and 533 according to exemplary embodiments of this disclosure may include a vibration portion (or vibration layer) PCL, a first electrode layer E1, and a second electrode layer E2. For example, a structure including a vibration portion PCL, a first electrode layer E1, and a second electrode layer E2 may be referred to as a vibration device (or vibrator) PCM.

[0370] The vibrating portion PCL may include a piezoelectric material, a composite piezoelectric material, or an electroactive material, and the piezoelectric material, composite piezoelectric material, and electroactive material may have a piezoelectric effect. The vibrating portion PCL may be referred to as a vibrating layer, a piezoelectric material layer, a piezoelectric composite layer, an electroactive layer, a piezoelectric material portion, a piezoelectric composite material layer, an electroactive portion, a piezoelectric structure, a piezoelectric composite, or a piezoelectric ceramic composite, but the exemplary embodiments disclosed herein are not limited thereto.

[0371] The vibrating portion PCL according to exemplary embodiments of this disclosure may include a ceramic matrix material capable of achieving relatively high vibration. For example, the vibrating portion PCL may include a 1-3 composite structure or a 2-2 composite structure. For example, the piezoelectric deformation coefficient "d" of the vibrating portion PCL in the thickness direction Z... 33 "It can have 1000 pC / N or greater, but the exemplary embodiments disclosed herein are not limited thereto."

[0372] The first electrode layer E1 may be disposed on the first surface (or upper or front surface) of the vibrating portion PCL and may be electrically connected to the first surface of the vibrating portion PCL. For example, the first electrode layer E1 may have a single electrode shape (or a common electrode shape) disposed on the entire first surface of the vibrating portion PCL. The first electrode layer E1 according to an exemplary embodiment of this disclosure may include a transparent conductive material, a semi-transparent (or semi-bright) conductive material, or an opaque conductive material. For example, examples of transparent or semi-transparent conductive materials may include indium tin oxide (ITO) or indium zinc oxide (IZO), but the exemplary embodiments of this disclosure are not limited thereto. Opaque conductive materials may include aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), magnesium (Mg), etc., or any alloy of these materials, but the exemplary embodiments of this disclosure are not limited thereto.

[0373] The second electrode layer E2 may be located on a second surface (or lower or rear surface) opposite to the first surface of the vibrating portion PCL, and may be electrically connected to the second surface of the vibrating portion PCL. For example, the second electrode layer E2 may have a single electrode shape (or a common electrode shape or a single electrode shape) disposed across the entire second surface of the vibrating portion PCL. According to exemplary embodiments of this disclosure, the second electrode layer E2 may include a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode layer E2 may include the same material as the first electrode layer E1, but exemplary embodiments of this disclosure are not limited thereto. As another exemplary embodiment of this disclosure, the second electrode layer E2 may include a material different from the first electrode layer E1.

[0374] The vibrating portion PCL can be polarized (or polarized) in a gas at a specific temperature or in a gas at a temperature that can be changed from high temperature to room temperature by applying a specific voltage to the first electrode layer E1 and the second electrode layer E2, but the exemplary embodiments disclosed herein are not limited thereto.

[0375] Each of the vibration generators 513 and 533 according to exemplary embodiments of the present disclosure may further include a first protective member 501 and a second protective member 502.

[0376] The first protective member 501 may be disposed on the first surface of the vibrating device PCM. For example, the first protective member 501 may cover the first electrode layer E1 disposed on the first surface of the vibrating device PCM. Therefore, the first protective member 501 may support the first surface of the vibrating device PCM and protect the first surface of the vibrating device PCM or the first electrode layer E1.

[0377] According to an exemplary embodiment of this disclosure, the first protective member 501 can be disposed on the first surface of the vibrating device PCM via a first adhesive layer 503. For example, the first protective member 501 can be connected or attached to the first surface of the vibrating device PCM via a film lamination process using the first adhesive layer 503.

[0378] The second protective member 502 may be disposed on the second surface of the vibrating device PCM. For example, the second protective member 502 may cover the second electrode layer E2 disposed on the second surface of the vibrating device PCM. Therefore, the second protective member 502 may support the second surface of the vibrating device PCM and protect the second surface of the vibrating device PCM or the second electrode layer E2.

[0379] The second protective member 502 can be disposed on the second surface of the vibrating device PCM via the second adhesive layer 504. For example, the second protective member 502 can be connected or attached to the second surface of the vibrating device PCM via a film lamination process using the second adhesive layer 504.

[0380] Each of the first protective member 501 and the second protective member 502 according to exemplary embodiments of the present disclosure may include a plastic film. For example, each of the first protective member 501 and the second protective member 502 may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but exemplary embodiments of the present disclosure are not limited thereto.

[0381] The first adhesive layer 503 may be disposed on the first surface of the vibrating device PCM. For example, the first adhesive layer 503 may be formed on the rear surface (or inner surface) of the first protective member 501 facing the first surface of the vibrating device PCM, and may be disposed on the first surface of the vibrating device PCM.

[0382] The second adhesive layer 504 may be disposed on the second surface of the vibrating device PCM. For example, the second adhesive layer 504 may be formed on the front surface (or inner surface) of the second protective member 502 facing the second surface of the vibrating device PCM, and may be disposed on the second surface of the vibrating device PCM.

[0383] The vibrating device PCM may be surrounded by a first adhesive layer 503 and a second adhesive layer 504. For example, the first adhesive layer 503 and the second adhesive layer 504 may completely surround the entire vibrating device PCM. For example, the first adhesive layer 503 and the second adhesive layer 504 may be referred to as cover members, etc., but the exemplary embodiments of this disclosure are not limited thereto. When each of the first adhesive layer 503 and the second adhesive layer 504 jointly forms a cover member, a first protective member 501 may be disposed at a first surface of the cover member, and a second protective member 502 may be disposed at a second surface of the cover member. For example, for ease of description, the first adhesive layer 503 and the second adhesive layer 504 are shown as first adhesive layer 503 and second adhesive layer 504, but the exemplary embodiments of this disclosure are not limited thereto, and they may be configured as a single adhesive layer.

[0384] Each of the first adhesive layer 503 and the second adhesive layer 504 according to exemplary embodiments of the present disclosure may include an electrically insulating material with adhesive properties, and may include a material capable of compression and decompression. For example, each of the first adhesive layer 503 and the second adhesive layer 504 may include an epoxy resin, an acrylic resin, a silicone resin, or a polyurethane resin, but exemplary embodiments of the present disclosure are not limited thereto.

[0385] Each of the vibration generators 513 and 533 according to exemplary embodiments of the present disclosure may further include a first power line PL1, a second power line PL2, and a pad portion 505.

[0386] A first power line PL1 may be disposed at the first protective member 501. For example, the first power line PL1 may be disposed on the rear surface of the first protective member 501 facing the first surface of the vibrating device PCM. The first power line PL1 may be electrically connected to the first electrode layer E1 of the vibrating device PCM. For example, the first power line PL1 may be directly electrically connected to the first electrode layer E1 of the vibrating device PCM. For example, the first power line PL1 may be electrically connected to the first electrode layer E1 of the vibrating device PCM through an anisotropic conductive film. As another exemplary embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode layer E1 of the vibrating device PCM through a conductive material (or particles) included in the first adhesive layer 503.

[0387] The second power line PL2 can be disposed at the second protective member 502. For example, the second power line PL2 can be disposed on the front surface of the second protective member 502 facing the second surface of the vibrating device PCM. The second power line PL2 can be electrically connected to the second electrode layer E2 of the vibrating device PCM. For example, the second power line PL2 can be directly electrically connected to the second electrode layer E2 of the vibrating device PCM. For example, the second power line PL2 can be electrically connected to the second electrode layer E2 of the vibrating device PCM through an anisotropic conductive film. As another exemplary embodiment of this disclosure, the second power line PL2 can be electrically connected to the second electrode layer E2 of the vibrating device PCM through a conductive material (or particles) included in the second adhesive layer 504.

[0388] The pad portion 505 can be electrically connected to the first power line PL1 and the second power line PL2. For example, the pad portion 505 can be provided at each of the vibration generators 513 and 533 to be electrically connected to a portion (or one end) of each of the first power line PL1 and the second power line PL2. The pad portion 505 according to an exemplary embodiment of this disclosure may include a first pad electrode and a second pad electrode. The first pad electrode can be electrically connected to a portion of the first power line PL1. The second pad electrode can be electrically connected to a portion of the second power line PL2.

[0389] Each of the vibration generators 513 and 533 according to exemplary embodiments of this disclosure may also include a flexible cable 506.

[0390] The flexible cable 506 can be electrically connected to the pad portion 505 disposed at the vibration generators 513 and 533, and can provide a drive signal (or sound signal) from the sound processing circuit to the vibrating device PCM. The flexible cable 506 according to an exemplary embodiment of this disclosure may include a first terminal and a second terminal. The first terminal can be electrically connected to a first pad electrode of the pad portion 505. The second terminal can be electrically connected to a second pad electrode of the pad portion 505. For example, the flexible cable 506 can be configured as a flexible printed circuit cable or a flexible flat cable, but the exemplary embodiments of this disclosure are not limited thereto.

[0391] The sound processing circuit (or vibration driving circuit) can generate an alternating current (AC) vibration driving signal based on a sound source, including a first polarity driving signal and a second polarity driving signal. The first polarity driving signal can be one of a positive (+) driving signal and a negative (-) driving signal, and the second polarity driving signal can also be one of a positive (+) driving signal and a negative (-) driving signal. For example, the first polarity driving signal can be provided to the first electrode layer E1 of each of the vibration generators 513 and 533 via the first terminal of the flexible cable 506, the first pad electrode of the pad portion 505, and the first power line PL1. The second polarity driving signal can be provided to the second electrode layer E2 of each of the vibration generators 513 and 533 via the second terminal of the flexible cable 506, the second pad electrode of the pad portion 505, and the second power line PL2.

[0392] Figures 9A to 9F The vibration portion of a vibration generator according to an exemplary embodiment of this disclosure is shown.

[0393] The vibrating portion PCL according to an exemplary embodiment of this disclosure may include a plurality of first portions PCLa and a plurality of second portions PCLb located between the plurality of first portions PCLa. The first portions PCLa may include inorganic materials, and the second portions PCLb may include organic materials. The first portions PCLa and the second portions PCLb may be connected to each other in a plane, so that the first vibration device 510 and the second vibration device 530 can be implemented as a single membrane. Based on this configuration, since the vibration devices 510 and 530 can be implemented as a single membrane, vibration devices 510 and 530 with a smaller thickness can be achieved compared to a structure with multiple stacked piezoelectric elements. Therefore, the increase in display device thickness caused by the arrangement of vibration devices 510 and 530 can be reduced.

[0394] Each of the plurality of first portions PCLa according to exemplary embodiments of the present disclosure may include an inorganic material or a piezoelectric material, and may vibrate based on the piezoelectric effect (or piezoelectric properties) induced by an electric field. For example, each of the plurality of first portions PCLa may be referred to as an electroactive portion, an inorganic material portion, a piezoelectric material portion, or a vibrating portion, etc., but exemplary embodiments of the present disclosure are not limited thereto.

[0395] According to exemplary embodiments of this disclosure, each of the plurality of first portions PCLa may include a ceramic matrix material configured to generate relatively high vibrations, or may include a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure may have both piezoelectric and inverse piezoelectric effects, and may be a directional structure. The perovskite crystal structure may be represented by the chemical formula "ABO3". In the chemical formula, "A" may include a divalent metal element, and "B" may include a tetravalent metal element. For example, in the chemical formula "ABO3", "A" and "B" may be cations, and "O" may be an anion. For example, the chemical formula "ABO3" may include at least one or more of lead(II) titanate (PbTiO3), lead zirconate (PbZrO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3), but exemplary embodiments of this disclosure are not limited thereto.

[0396] In perovskite crystal structures including a central ion (e.g., PbTiO3, such as lead(II) titanate, lead titanate oxide, or lead titanate with a perovskite structure), the position of the titanium (Ti) ion can be altered by external stress or a magnetic field. Therefore, polarization can change, resulting in a piezoelectric effect. For example, in a perovskite crystal structure, a cubic shape corresponding to a symmetrical structure can be transformed into a tetragonal (or quadrilateral), cubic, or rhombohedral structure corresponding to an asymmetrical structure. Thus, a piezoelectric effect can occur. In tetragonal, cubic, or rhombohedral structures corresponding to asymmetrical structures, the polarizability at the morphological phase boundaries can be relatively high, and the polarizability can be rearranged relatively easily; therefore, the perovskite crystal structure can possess high piezoelectric properties.

[0397] For example, the inorganic material included in each of the plurality of first portions PCLa may include one or more materials selected from lead (Pb), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), niobium (Nb), magnesium (Mg), manganese (Mn), and indium (In), but the exemplary embodiments of this disclosure are not limited thereto. As another example, the inorganic material included in each of the plurality of first portions PCLa may include a material based on lead zirconate titanate (PZT), which includes lead (Pb), zirconium (Zr), and titanium (Ti), or may include a material based on lead zirconate nickel niobate (PZNN), which includes lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but the exemplary embodiments of this disclosure are not limited thereto. According to another exemplary embodiment of this disclosure, the inorganic material included in each of the plurality of first portions PCLa may include a material based on magnesium lead niobate (PMN), a material based on nickel lead niobate (PNN), a material based on lead zirconate niobate (PZN), or a material based on indium lead niobate (PIN), but the exemplary embodiments of this disclosure are not limited thereto. Materials based on PMN may include Pb, Mg, and Nb, and may include, for example, Pb(Mg,Nb)O3. Materials based on PNN may include Pb, Ni, and Nb, and may include, for example, Pb(Ni,Nb)O3. Materials based on PIN may include Pb, In, and Nb, and may include, for example, Pb(In,Nb)O3. According to another exemplary embodiment of this disclosure, the inorganic material may include at least one or more of calcium titanate (CaTiO3), BaTiO3, and SrTiO3, which do not contain Pb, but the exemplary embodiments of this disclosure are not limited thereto.

[0398] According to exemplary embodiments of this disclosure, the plurality of second PCLb portions may have modulus (or Young's modulus) and viscoelasticity lower than those of the first PCLa portion. Therefore, the second PCLb portions can enhance the reliability of the first PCLa portion, which is susceptible to impact due to its brittle nature. To provide the first vibration device 510 and the second vibration device 530 with impact resistance and high stiffness, each of the plurality of second PCLb portions may comprise a material having a relatively high damping factor (tanδ) and relatively high stiffness. For example, each of the plurality of second PCLb portions may comprise a material having a damping factor (tanδ) of about 0.1 GPa to about 1 GPa and a relatively high stiffness of about 0 GPa to about 10 GPa. Furthermore, the damping factor (tanδ) and stiffness characteristics may be described based on the correlation between the loss coefficient and the modulus. For example, multiple second-part PCLb may include materials having a loss factor of about 0.01 to about 1.0 and a modulus of about 0.1 GPa to about 10 GPa.

[0399] The organic material in each of the plurality of second portions PCLb may include an organic material or an organic polymer, which has flexible properties compared to the inorganic material in each of the first portions PCLa. For example, each of the plurality of second portions PCLb may include an organic material, an organic polymer, an organic piezoelectric material, or an organic non-piezoelectric material. For example, each of the plurality of second portions PCLb may be referred to as a flexible adhesive portion, an elastic portion, a bending portion, a damping portion, or a flexible portion, but the exemplary embodiments of this disclosure are not limited thereto.

[0400] Organic materials according to exemplary embodiments of this disclosure may include at least one of organic piezoelectric materials and organic non-piezoelectric materials.

[0401] Organic materials, including organic piezoelectric materials, can absorb impacts applied to inorganic materials (or the first portion PCLa). Therefore, the organic material portion can enhance the overall durability of the first vibration device 510 and the second vibration device 530, and can provide piezoelectric properties corresponding to a certain level or higher. The organic piezoelectric material according to an exemplary embodiment of this disclosure can be an organic material with electroactive properties. Organic materials, including organic non-piezoelectric materials, can be configured to include a curable resin composition and an adhesive including the curable resin composition. Therefore, the organic material can absorb impacts applied to inorganic materials (or the first portion PCLa), thereby enhancing the overall durability of the first vibration device 510 and the second vibration device 530. The organic non-piezoelectric material according to an exemplary embodiment of this disclosure can include at least one or more of epoxy polymers, propylene polymers, and silicone polymers, but the exemplary embodiments of this disclosure are not limited thereto.

[0402] According to exemplary embodiments of this disclosure, the organic material, including the organic non-piezoelectric material, may include an adhesion promoter or adhesion enhancer for adhesion between the epoxy resin and the inorganic material portion, for the high stiffness characteristics of the first vibration device 510 and the second vibration device 530. For example, the adhesion promoter may be a phosphate, etc., but the exemplary embodiments of this disclosure are not limited thereto. The organic material may be cured by at least one of a thermosetting process and a photocuring process. In the process of curing the organic material, a solvent-free epoxy resin may be used to avoid or prevent the thickness uniformity of the first vibration device 510 and the second vibration device 530 from being reduced due to the shrinkage of the organic material caused by the evaporation of the solvent.

[0403] According to another exemplary embodiment of this disclosure, in addition to the high stiffness of the first vibration device 510 and the second vibration device 530, the organic material including the organic non-piezoelectric material may also include, for example, a reinforcing agent for damping properties. For example, the reinforcing agent may be a core-shell type methyl methacrylate-butadiene-styrene (MBS), and its content may be from about 5 wt% to about 40 wt%. The reinforcing agent may be a core-shell type elastomer, and the shell portion may have high bonding strength with an epoxy resin (e.g., an acrylic polymer). Therefore, the reinforcing agent can enhance the impact resistance or damping properties of the first vibration device 510 and the second vibration device 530.

[0404] According to exemplary embodiments of the present disclosure, a plurality of first portions PCLa and a plurality of second portions PCLb of the vibrating portion PCL can be arranged alternately and repeatedly in a first direction X (or a second direction Y). For example, the first direction X may be the width direction of the vibrating portion PCL, and the second direction Y may be the length direction of the vibrating portion PCL, but the exemplary embodiments of the present disclosure are not limited thereto. For example, the first direction X may be the length direction of the vibrating portion PCL, and the second direction Y may be the width direction of the vibrating portion PCL.

[0405] Reference Figure 9A and Figure 9B Each of the plurality of first portions PCLa can be positioned between two adjacent second portions PCLb. For example, each of the plurality of first portions PCLa can have a first width parallel to a first direction X and a length parallel to a second direction Y. Each of the plurality of second portions PCLb can have a second width parallel to the first direction X and a length parallel to the second direction Y. For example, the first width can be greater than the second width. For example, the plurality of first portions PCLa and the plurality of second portions PCLb can have the same size (or width) or different sizes (or widths), can be arranged alternately and repeatedly in the first direction X (or the second direction Y), and can have a line shape or a stripe shape. Therefore, Figure 9A and Figure 9B The vibrating portion PCL shown may have a 2-2 composite structure, and therefore may have a resonant frequency of 20 kHz or lower. However, the exemplary embodiments of this disclosure are not limited thereto, and the resonant frequency of the vibrating portion PCL may vary based on at least one or more of the shape, length, and thickness of the vibrating portion PCL.

[0406] According to an exemplary embodiment of this disclosure, a plurality of first portions PCLa may be spaced apart from each other along a first direction X and a second direction Y, and each of a plurality of second portions PCLb may be configured to fill the gap between adjacent first portions PCLa or surround each of the plurality of first portions PCLa (see, for example, Figure 9C , Figure 9D , Figure 9E and Figure 9F For example, multiple first-part PCLa can be configured with a lattice shape to have the same size. Figure 9C For example, multiple first parts PCLa can have a planar structure containing a circular shape. Figure 9D For example, the plurality of first portions PCLa may have a circular shape, but the exemplary embodiments of this disclosure are not limited thereto. For example, the plurality of first portions PCLa may have a planar structure containing an elliptical shape, a polygonal shape, or a ring shape. For example, the plurality of first portions PCLa may have a planar structure containing a triangular shape. Figure 9E and Figure 9F ).

[0407] Multiple first portions PCLa and multiple second portions PCLb can be disposed (or connected) in the same plane. Therefore, the vibrating portion PCL according to various embodiments of the present disclosure can have a single film type. For example, the vibrating portion PCL can vibrate in the vertical direction (or up-down or thickness direction) by means of the first portion PCLa having vibratory characteristics, and can be bent into a curved shape by means of the second portions PCLb having flexibility or ductility. Furthermore, in the vibrating portion PCL according to various embodiments of the present disclosure, the dimensions of the first portion PCLa and the second portion PCLb can be adjusted based on the required piezoelectric properties and flexibility of the vibrating portion PCL. For example, if the vibrating portion PCL requires more piezoelectric properties than flexibility, the dimensions of the first portion PCLa can be adjusted to be larger than the dimensions of the second portion PCLb. As another exemplary embodiment of the present disclosure, if the vibrating portion PCL requires more flexibility than piezoelectric properties, the dimensions of the second portion PCLb can be adjusted to be larger than the first portion PCLa. Therefore, the size of the vibrating portion PCL can be adjusted based on the required properties. Therefore, the design of the vibrating portion PCL can be easily adjusted based on specific needs or applications.

[0408] Figure 10 and Figure 11 yes Figure 3 Another enlarged view of region "B" shown.

[0409] Figure 10 and Figure 11 It shows Figure 3The first plate 511 of the first vibration device 510 shown is a modified exemplary embodiment. The following description will focus more on the modified and related elements, and may briefly give or omit redundant descriptions of the same or similar elements described above. (Referring to the above...) Figure 10 and Figure 11 The description of the first plate 511 given can be applied equally or similarly to the second plate 531 of the second vibration device 530.

[0410] Reference Figure 10 and Figure 11 According to another exemplary embodiment of this disclosure, the first plate 511 may have a convex-concave curved shape. The bending direction of the first plate 511 may be one or more of the major axis direction, the minor axis direction, and the diagonal direction. For example, the portion of the first plate 511 corresponding to (or overlapping) the (1-1)th hole 411-1 may have a convex shape or a concave shape. For example, as Figure 10 As shown, the portion of the first plate 511 corresponding to (or overlapping) the (1-1) hole 411-1 can be bent toward the (1-1) hole 411-1. Alternatively, as Figure 11 As shown, the portion of the first plate 511 corresponding to (or overlapping) the (1-1) hole 411-1 can be bent away from the (1-1) hole 411-1 or be bent in the opposite direction to the (1-1) hole 411-1.

[0411] According to another exemplary embodiment of this disclosure, the second plate 531 may have the same shape as the first plate 511. For example, similar to the first plate 511, the second plate 531 may have a convex-concave curved shape. For example, the bending direction of the second plate 531 may be one or more of the major axis direction, the minor axis direction, and the diagonal direction. For example, the portion of the second plate 531 corresponding to (or overlapping) the (1-2) holes 411-2 may have a convex shape or a concave shape. As another example, the portion of the second plate 531 corresponding to (or overlapping) the (1-2) holes 411-2 may be bent toward the (1-2) holes 411-2. For example, the portion of the second plate 531 corresponding to (or overlapping) the (1-2) holes 411-2 may be bent away from the (1-2) holes 411-2 or bent in the opposite direction to the (1-2) holes 411-2.

[0412] Figure 12 yes Figure 3 Another exemplary enlarged view of region "B" shown. Figure 13 yes Figure 3 Another exemplary enlarged view of region "C" shown. Figure 12 It shows Figure 3 An exemplary embodiment in which the first plate 511 of the first vibration device 510 is modified, and Figure 13It shows Figure 3 This is an exemplary embodiment of a modified first plate 511 of the second vibration device 530. The following description will focus more on the modifications and related elements, and may briefly give or omit redundant descriptions of the same or similar elements described above.

[0413] Reference Figure 12 and Figure 13 According to another exemplary embodiment of this disclosure, the first plate 511 and the second plate 531 may respectively include second holes 511a and 531a. For example, Figure 12 The second hole 511a of the first plate 511 shown can be applied to Figure 10 The first board in the middle is 511, and Figure 13 The second hole 531a of the first plate 531 shown can be applied to Figure 11 The second plate 531 shown.

[0414] According to an exemplary embodiment of this disclosure, second holes 511a and 531a can be provided at plates 511 and 531 corresponding to (or overlapping with) the first holes 411-1 and 411-2. For example, second holes 511a and 531a can increase the displacement of vibrating devices 510 and 530. For example, second holes 511a and 531a can be provided based on the desired sound characteristics of the first vibrating device 510 and the second vibrating device 530. For example, the number, shape, length, and width of second holes 511a and 531a can be changed based on the desired sound characteristics of the first vibrating device 510 and the second vibrating device 530. The second hole 511a in this embodiment of the disclosure can be a third hole, and the second hole 511a in this embodiment of the disclosure can be a fourth hole, but this embodiment of the disclosure is not limited to these designations.

[0415] According to an exemplary embodiment of this disclosure, the total area of ​​the second hole (or the (2-1) hole) 511a disposed at the first plate 511 of the first vibration device 510 may be the same as or different from the total area of ​​the second hole (or the (2-2) hole) 531a disposed at the second plate 531 of the second vibration device 530.

[0416] According to an exemplary embodiment of this disclosure, the number, shape, length, and width of the (2-1)th hole 511a disposed at the first plate 511 may be the same as the number, shape, length, and width of the (2-2)th hole 531a disposed at the second plate 531. For example, at least one or more of the number, shape, length, and width of the (2-1)th hole 511a may be different from the number, shape, length, and width of the (2-2)th hole 531a.

[0417] The second holes 511a and 531a can adjust the displacement of plates 511 and 531. Therefore, the second holes 511a and 531a can be set in plates 511 and 531 based on the desired sound characteristics of the first vibration device 510 and the second vibration device 530, so that the device can produce sound with the desired sound characteristics.

[0418] According to an exemplary embodiment of this disclosure, the seventh connecting members 517 and 537 may overlap with or not overlap with the second holes 511a and 531a.

[0419] Figure 14 This is an exploded view of a device according to another exemplary embodiment of the present disclosure. Figure 15 It is relative to Figure 14 The connection structure of the exemplary device shown follows Figure 1 Another cross-sectional view taken by line I-I' shown. Figure 16 yes Figure 15 An enlarged view of region "D" shown.

[0420] Figures 14 to 16 The device shown in another exemplary embodiment of this disclosure can be modified. Figures 1 to 13 The device shown in the exemplary embodiment of this disclosure includes a first cover, a vibration device, and a component. The following description will focus more on modified and related elements, and may briefly give or omit redundant descriptions of the same or similar elements described above.

[0421] Reference Figures 14 to 16 According to another exemplary embodiment of this disclosure, the first cover 400 may include a third hole 413 disposed at its rear portion 410. For example, the third hole 413 may increase the amount of sound generated and transmitted to the front surface of the device based on vibrations of the vibrating devices 510 and 530. For example, the third hole 413 may be disposed at the first cover 400 overlapping with the vibrating device 500, and the rear surface of the backlight component 230 may be exposed through the third hole 413. For example, the rear surface of the backlight component 230 may be exposed to the vibrating devices 510 and 530 through the third hole 413. For example, the reflective sheet 235 of the backlight component 230 may be exposed through the third hole 413 in a direction toward the rear surface of the first cover 400. For example, the reflective sheet 235 of the backlight component 230 may be exposed to the vibrating devices 510 and 530 through the third hole 413. For example, the third hole 413 may be disposed at or above each of the first region A1 and the second region A2 of the rear portion 410 of the first cover 400.

[0422] According to an exemplary embodiment of this disclosure, the third hole 413 may include a (3-1) hole 413-1 and a (3-2) hole 413-2. For example, the (3-1) hole 413-1 may be located in the first region A1. For example, the (3-2) hole 413-2 may be located in the second region A2. For example, the (3-1) hole 413-1 may be located in the first intermediate region MA1 or the first peripheral region EA1, or it may be located above the first intermediate region MA1 or the first peripheral region EA1. For example, the (3-2) hole 413-2 may be located in the second intermediate region MA2 or the second peripheral region EA2, or it may be located above the second intermediate region MA2 or the second peripheral region EA2. The (3-1) hole 413-1 of this disclosure embodiment may be a first hole, and the (3-2) hole 413-2 of this disclosure embodiment may be a second hole, but this disclosure embodiment is not limited to these designations.

[0423] The third hole 413 can provide a second gap space between the display component 200 and the corresponding vibration device 500. For example, the third hole 413 can provide a second gap space between the backlight component 230 of the display component 200 and the vibration device 500. For example, the second gap space can be referred to as a sound pressure level space (or sound portion) based on the vibration of the vibration device 500 to generate a sound pressure level, or a vibration space based on the drive of the vibration device 500 on the sound wave propagation path (or sound energy incident portion), where the sound waves generated by the vibration of the vibration device 500 propagate directly to the display component 200 through the sound wave propagation path (or sound energy incident portion), but the exemplary embodiments of this disclosure are not limited thereto.

[0424] The vibration device 500 according to another exemplary embodiment of the present disclosure may include a first vibration device 510 (including, for example, the (1-1) vibration device 510-1 in the first region A1) and a second vibration device 530 (including, for example, the (2-1) vibration device 530-1 in the second region A2), but the exemplary embodiments of the present disclosure are not limited thereto.

[0425] According to an exemplary embodiment of this disclosure, the first vibration device 510 may be disposed on the rear surface of the rear portion 410 of the first cover 400. For example, the first vibration device 510 may be disposed at a first region A1 of the first cover 400 and may vibrate the first region A1 of the first cover 400 in response to a first drive signal, thereby causing the first portion P1 of the display member 200 to vibrate. Therefore, the first vibration device 510 may generate a first sound S1 of the first tone vocal cords based on the vibration of the first portion P1 of the display member 200, or may generate a first tactile feedback (or a first tactile vibration) in response to touch (e.g., by a user).

[0426] The first vibration device 510 may include a (1-1) vibration device 510-1, a (1-2) vibration device 510-2, and a second component 510-3, but the exemplary embodiments of this disclosure are not limited thereto. For example, the (1-1) vibration device 510-1 and the (1-2) vibration device 510-2 may be arranged adjacent to each other. For example, the second component 510-3 may be a first support component, a first guide component, or a first component, and may be used in common. However, the exemplary embodiments of this disclosure are not limited thereto. According to another exemplary embodiment of this disclosure, the (1-1) vibration device 510-1 and the (1-2) vibration device 510-2 may be applied to be compatible with each other. For example, the (1-2) vibration device 510-2 may be disposed on the rear surface of the first cover 400.

[0427] The (1-1) vibration device 510-1 may be disposed on the rear surface of the first cover 400. For example, the (1-1) vibration device 510-1 may be disposed in a first region A1 of the rear portion 410 of the first cover 400. For example, the (1-1) vibration device 510-1 may vibrate the first region A1 of the first cover 400 based on a (1-1) drive signal including a tactile feedback signal and / or an audio signal, so as to vibrate the first portion P1 of the display member 200. Therefore, the (1-1) vibration device 510-1 may generate a first sound S1 of the first tone vocal cords based on the vibration of the first portion P1 of the display member 200, or may generate a first tactile feedback (or a first tactile vibration) in response to touch (e.g., by a user). For example, the (1-1) vibration device 510-1 can cause the first region A1 of the first cover 400 to vibrate so as to directly cause the first portion P1 of the display member 200 to vibrate. Therefore, the first sound S1 of the first tone vocal cord can be generated based on the vibration of the first portion P1 of the display member 200, or the first tactile feedback (or the first tactile vibration) can be generated in response to touch.

[0428] According to an exemplary embodiment of this disclosure, the (1-1) vibration device 510-1 may be a diaphragm vibration device. For example, the (1-1) vibration device 510-1 may be referred to as a flexible sound generator, a flexible actuator, a flexible loudspeaker, a flexible piezoelectric loudspeaker, a diaphragm actuator, a diaphragm-piezoelectric composite actuator, a diaphragm loudspeaker, a diaphragm-piezoelectric loudspeaker, or a diaphragm-piezoelectric composite loudspeaker, etc., but the exemplary embodiment of this disclosure is not limited thereto.

[0429] Compared to the first vibration device 510 according to an exemplary embodiment of the present disclosure, where the (1-1) vibration device 510-1 is configured to cover the (1-1) hole 411-1 disposed at the rear portion 410 of the first cover 400, the (1-1) vibration device 510-1 of the first vibration device 510 according to another exemplary embodiment of the present disclosure may have the same configuration as the (1-1) vibration device 510-1 of the first vibration device 510 according to the exemplary embodiment of the present disclosure, except that the (1-1) vibration device 510-1 disposed at the rear portion 410 of the first cover 400. Therefore, redundant repetitive descriptions may be omitted or briefly provided below.

[0430] According to exemplary embodiments of this disclosure, such as Figure 15 and Figure 16 As shown, the (1-1) vibration device 510-1 may include a first plate 511 and a first vibration generator 513. The first plate 511 is disposed on the rear surface of the rear portion 410 of the first cover 400 via a (6-1) connecting member 515, and the first vibration generator 513 is disposed on the rear surface of the first plate 511 via a (7-1) connecting member 517. For example, the positions of the first plate 511 and the first vibration generator 513 may be changed. For example, the (1-1) vibration device 510-1 may include a first vibration generator 513 disposed on the rear surface of the rear portion 410 of the first cover 400 via a (6-1) connecting member 515 and a first plate 511 disposed on the rear surface of the first vibration generator 513 via a (7-1) connecting member 517.

[0431] The (1-2) vibration device 510-2 can be disposed at the rear portion 410 of the first cover 400. For example, the (1-2) vibration device 510-2 can be disposed on the rear surface of the rear portion 410 of the first cover 400 to cover the (3-1) hole 413-1 (or the (1-1) hole). For example, when a second member 510-3 according to an exemplary embodiment of the present disclosure is configured, the (1-2) vibration device 510-2 can be disposed on the rear surface of the second member 510-3. For example, the (1-2) vibration device 510-2 can be disposed on the rear surface of the second member 510-3 via the (9-1) connecting member 510-3c. For example, the (1-2) vibration device 510-2 can be a coil-type vibration device (or vibration generator), and can be a vibration device (or vibration generator) including a magnet, a spool, and a coil wound on the spool. For example, the (9-1) connecting member 510-3c may be disposed between the rear surface of the second member 510-3 and the (1-2) vibrating device 510-2.

[0432] The coil-type vibration device according to an exemplary embodiment of this disclosure may further include a frame (or plate), a central rod, and a damper. A magnet (or permanent magnet) may be disposed at the frame to be accommodated in the hollow portion of the spool. A coil may be wound around the outer periphery of the spool. For example, an acoustic signal (or speech signal) from an external source may be supplied to the coil. The coil may rise and fall with the height of the spool. When an acoustic signal is applied to the coil, the spool may vibrate according to Fleming's left-hand rule (e.g., perform vertical reciprocating motion) based on the applied electric field generated around the coil and the external magnetic field formed around the magnet. The central rod may be disposed on the magnet and may guide the vibration of the spool. For example, the central rod may be inserted into (or accommodated) in the hollow portion of the spool and thus be surrounded by the spool. For example, the central rod may be disposed on the magnet to be accommodated in the hollow portion of the spool. For example, a damper may be disposed between the frame and the spool. The damper may have a creased structure between its one side and the other and may contract or relax based on the vibration of the spool. For example, a damper can use its restoring force to limit the vibration distance of a spool (e.g., vertical movement distance). For instance, if the spool vibrates a certain distance or more, or vibrates a certain distance or less, the spool can return to its original position through the restoring force of the damper. However, the construction of coil-type vibration devices is not limited to this.

[0433] According to an exemplary embodiment of this disclosure, the displacement of the (1-2) vibrating device 510-2 can be increased in a low-pitched sound; therefore, the third hole 413 can ensure vibration space between the vibrating device 510 and the optical sheet component 237. For example, to reduce the height of the device based on the (1-2) vibrating device 510-2, the first components 610 and 630 can be configured such that the spool of the (1-2) vibrating device 510-2 is exposed or inserted (or accommodated) into the third hole 413.

[0434] According to an exemplary embodiment of this disclosure, the (1-2) vibration device 510-2 can vibrate a first region A1 of the first cover 400 based on a (1-2) drive signal including a tactile feedback signal and / or an audio signal. Therefore, the (1-2) vibration device 510-2 can vibrate the first region A1 of the display member 200, causing a first portion P1 of the display member 200 to vibrate. Therefore, the (1-2) vibration device 510-2 can generate a first sound S1 from the first tone vocal cords based on the vibration of the first portion P1 of the display member 200, or can generate first tactile feedback (or tactile vibration) in response to touch (e.g., by a user).

[0435] According to an exemplary embodiment of this disclosure, the (1-2) vibration device 510-2 can vibrate the first region A1 of the first cover 400 in response to the (1-2) drive signal, thereby generating a sound pressure level in the internal region (or second gap space) of the (3-1) hole 413-1. Therefore, a first sound S1 of the first tone vocal cords can be generated by vibrating the first portion P1 of the display member 200.

[0436] According to an exemplary embodiment of this disclosure, when the (1-2) vibration device 510-2 vibrates based on the (1-2) drive signal, a sound pressure level can be generated in the internal region of the (3-1) hole 413-1 by the vibration of the first region A1 of the first cover 400 based on the vibration of the (1-2) vibration device 510-2. A sound pressure level can be generated in the sound transmission space STS by the vibration of the backlight component 230 based on the sound pressure level. Based on the sound pressure level generated in the sound transmission space STS, a first sound S1 generated by the vibration of the first portion P1 of the display panel 210 can be output in the forward direction FD of the display panel 210. Therefore, the sound wave generated by the vibration of the (1-2) vibration device 510-2 can be directly transmitted (or propagated) to the display component 200 through the (3-1) hole 413-1. Therefore, the sound pressure level characteristics and / or sound quality of the first sound S1 can be enhanced.

[0437] The second component 510-3 may be disposed between the rear portion 410 of the first cover 400 and the first vibration device 510. For example, the second component 510-3 may support the (1-2) vibration device 510-2. For example, the second component 510-3 may be disposed on the rear surface of the rear portion 410 of the first cover 400 via the (10-1) connecting component 510-3d. In this embodiment of the present disclosure, the (10-1) connecting component 510-3d may be the fourteenth connecting component, and the (10-2) connecting component 510-3d may be the fifteenth connecting component, but this embodiment of the present disclosure is not limited to these numbers.

[0438] The second component 510-3 according to an exemplary embodiment of this disclosure may include a (4-1) hole 510-3a and a (4-2) hole 510-3b. The (4-1) hole 510-3a in this embodiment of the disclosure may be the fifth hole, and the (4-2) hole 510-3b in this embodiment of the disclosure may be the sixth hole, but this embodiment of the disclosure is not limited to these numbers.

[0439] According to an exemplary embodiment of this disclosure, the (4-1) hole 510-3a may correspond to (or overlap with) the (1-1) vibration device 510-1. For example, the (4-1) hole 510-3a may have the same shape as the (1-1) vibration device 510-1, but the exemplary embodiment of this disclosure is not limited thereto. For example, the size (or width) of the (4-1) hole 510-3a may be the same as or larger than the size of the (1-1) vibration device 510-1. For example, the (4-1) hole 510-3a may provide displacement space for the (1-1) vibration device 510-1, thus increasing the displacement of the (1-1) vibration device 510-1. For example, the (4-1) hole 510-3a may be covered by the first plate 511 of the (1-1) vibration device 510-1. For example, the vibration generator 513 of the (1-1) vibration device 510-1 can be disposed at the first plate 511. For example, the vibration generator 513 of the (1-1) vibration device 510-1 can be disposed at the rear surface of the first plate 511.

[0440] According to an exemplary embodiment of this disclosure, the (4-2) hole 510-3b may correspond to (or overlap with) the (3-1) hole 413-1 of the first cover 400. For example, the (4-2) hole 510-3b may correspond to (or overlap with) the (1-2) vibration device 510-2. For example, the (4-2) hole 510-3b may have the same or similar shape as the (3-1) hole 413-1 of the first cover 400, but the exemplary embodiment of this disclosure is not limited thereto. For example, the size (or width) of the (4-2) hole 510-3b may be the same as or different from the size of the (3-1) hole 413-1 of the first cover 400. For example, the size of the (4-2) hole 510-3b may be smaller or larger than the size of the (3-1) hole 413-1.

[0441] According to an exemplary embodiment of this disclosure, the (4-2) hole 510-3b can be covered by the (1-2) vibration device 510-2. For example, the (1-2) vibration device 510-2 can be disposed on the rear surface of the second member 510-3 and can cover the (4-2) hole 510-3b. For example, the (1-2) vibration device 510-2 can output a second sound pressure level through the (4-2) hole 510-3b. For example, the (1-2) vibration device 510-2 can output a low-pitched sound through the (4-2) hole 510-3b, but the exemplary embodiment of this disclosure is not limited thereto.

[0442] According to an exemplary embodiment of this disclosure, the second component 510-3 can be accommodated (or housed) within the (1-1) component 610 and can support at least one or more of the (1-1) vibration device 510-1 and the (1-2) vibration device 510-2. For example, the second component 510-3 can be connected to or coupled to at least a portion of the (1-1) component 610. For example, the second component 510-3 can be referred to as a first support component, a first support frame, a first support panel, a first guide panel, or a first guide component, etc., but the exemplary embodiment of this disclosure is not limited thereto.

[0443] According to an exemplary embodiment of this disclosure, the portion of the second member 510-3 disposed between the (4-1) hole 510-3a and the (4-2) hole 510-3b can acoustically separate the space where the (1-1) vibrating device 510-1 is disposed and the space where the (1-2) vibrating device 510-2 is disposed. Therefore, interference between the first sound pressure level (or sound wave) generated based on the vibration of the (1-1) vibrating device 510-1 and the second sound pressure level (or sound wave) generated based on the vibration of the (1-2) vibrating device 510-2 and different from the first sound pressure level can be prevented or reduced, thereby preventing or reducing the degradation of sound characteristics.

[0444] According to an exemplary embodiment of this disclosure, a first vibration device 510 may be disposed on the rear surface of the rear portion 410 of the first cover 400. For example, a second vibration device 530 may be disposed at a second region A2 of the first cover 400 and may vibrate the second region A2 of the first cover 400 in response to a second drive signal, thereby causing the second portion P2 of the display member 200 to vibrate. Therefore, the second vibration device 530 may generate a second sound S2 of the second tone vocal cords based on the vibration of the second portion P2 of the display member 200, or may generate a second tactile feedback (or a second tactile vibration) in response to touch (e.g., by a user).

[0445] The second vibration device 530 may include a (2-1) vibration device 530-1, a (2-2) vibration device 530-2, and a third component 530-3, but the exemplary embodiments of this disclosure are not limited thereto. For example, the (2-1) vibration device 530-1 and the (2-2) vibration device 530-2 may be arranged adjacent to each other. For example, the third component 530-3 may be a second guide component or a first component, and may be used in common. However, the exemplary embodiments of this disclosure are not limited thereto.

[0446] The (2-1) vibration device 530-1 can be disposed on the rear surface of the first cover 400. For example, the (2-1) vibration device 530-1 can be disposed in the second region A2 of the rear portion 410 of the first cover 400. For example, the (2-1) vibration device 530-1 can vibrate the second region A2 of the first cover 400 based on a (2-1) drive signal including a tactile feedback signal and / or an audio signal, so as to vibrate the second portion P2 of the display member 200. Therefore, the (2-1) vibration device 530-1 can generate a second sound S2 of the second tone vocal cords based on the vibration of the second portion P2 of the display member 200, or can generate a second tactile feedback (or a second tactile vibration) in response to touch. For example, the (2-1) vibration device 530-1 can vibrate the second region A2 of the first cover 400 to directly vibrate the second portion P2 of the display member 200. Therefore, the (2-1) vibration device 530-1 can generate a second sound S2 of the second tone vocal cord based on the vibration of the second part P2 of the display member 200, or can generate a second tactile feedback (or a second tactile vibration) in response to touch.

[0447] The (2-1) vibration device 530-1 can be constructed to be substantially the same as the (1-1) vibration device 510-1.

[0448] According to exemplary embodiments of this disclosure, such as Figure 15 and Figure 16 As shown, the (2-1) vibration device 530-1 may include a second plate 531 and a second vibration generator 533. The second plate 531 is disposed on the rear surface of the rear portion 410 of the first cover 400 by means of a (6-2) connecting member 535, and the second vibration generator 533 is disposed on the rear surface of the second plate 511 by means of a (7-2) connecting member 537. For example, the positions of the second plate 531 and the second vibration generator 533 may be changed. For example, the (2-1) vibration device 530-1 may include a second vibration generator 533 disposed on the rear surface of the rear portion 410 of the first cover 400 by means of a (6-2) connecting member 535 and a second plate 531 disposed on the rear surface of the second vibration generator 533 by means of a (7-2) connecting member 537.

[0449] The (2-2) vibration device 530-2 may be disposed at the rear portion 410 of the first cover 400. For example, the (2-2) vibration device 530-2 may be disposed on the rear surface of the rear portion 410 of the first cover 400 to cover the (3-2) hole 413-2. For example, the third member 530-3 according to an exemplary embodiment of the present disclosure is configured such that the (2-2) vibration device 530-2 may be disposed on the rear surface of the third member 530-3. For example, the (2-2) vibration device 530-2 may be disposed on the rear surface of the third member 530-3 via the (9-2) connecting member 530-3c. For example, the (2-2) vibration device 530-2 may be a coil-type vibration device (or vibration generator) and may be a vibration device (or vibration generator) including a magnet, a spool, and a coil wound on the spool. For example, the (9-2) connecting member 530-3c may be disposed between the rear surface of the third member 530-3 and the (2-2) vibration device 530-2. The (9-1) connecting member 510-3c of this embodiment may be the twelfth connecting member, and the (9-2) connecting member 510-3c of this embodiment may be the thirteenth connecting member, but this embodiment is not limited to these numbers.

[0450] According to an exemplary embodiment of this disclosure, the (2-2) vibration device 530-2 can vibrate the second region A2 of the first cover 400 based on a (2-2) drive signal including a tactile feedback signal and / or an audio signal. Therefore, the (2-2) vibration device 530-2 can vibrate the first region A1 of the display member 200. Therefore, the (2-2) vibration device 530-2 can generate a second sound S2 of the second tone vocal cords based on the vibration of the second portion P2 of the display member 200, or can generate second tactile feedback (or tactile vibration) in response to touch (e.g., by a user). For example, the (2-2) vibration device 530-2 can directly vibrate the first portion P1 of the display member 200. Therefore, the (2-2) vibration device 530-2 can generate a second sound S2 of the second tone vocal cords based on the vibration of the second portion P2 of the display member 200, or can generate second tactile feedback (or tactile vibration) in response to touch.

[0451] According to an exemplary embodiment of this disclosure, the (2-2) vibration device 530-2 can vibrate the second region A2 of the first cover 400 in response to the (2-2) drive signal, thereby generating a sound pressure level in the internal region (or second gap space) of the (3-2) hole 413-2. Therefore, a second sound S2 of the second tone vocal cords can be generated by vibrating the second portion P2 of the display member 200.

[0452] According to an exemplary embodiment of this disclosure, when the (2-2) vibration device 530-2 vibrates based on the (2-2) drive signal, a sound pressure level can be generated in the internal region of the (3-2) hole 413-2 by the vibration of the second region A2 of the first cover 400 based on the vibration of the (2-2) vibration device 530-2. A sound pressure level can be generated in the sound transmission space STS by the vibration of the backlight component 230 based on the sound pressure level. Based on the sound pressure level generated in the sound transmission space STS, a second sound S2 generated by the vibration of the second portion P2 of the display panel 210 can be output in the forward direction FD of the display panel 210. Therefore, the sound wave generated by the vibration of the (2-2) vibration device 530-2 can be directly transmitted (or propagated) to the display component 200 through the (3-2) hole 413-2. Therefore, the sound pressure level characteristics and / or sound quality of the second sound S2 can be enhanced.

[0453] The third component 530-3 may be disposed between the rear portion 410 of the first cover 400 and the second vibration device 530. For example, the third component 530-3 may support the (2-2) vibration device 530-2. For example, the third component 530-3 may be disposed on the rear surface of the rear portion 410 of the first cover 400 by means of the (10-2) connecting component 530-3d.

[0454] According to an exemplary embodiment of this disclosure, the third component 530-3 may include a (5-1) hole 530-3a and a (5-2) hole 530-3b. In this embodiment of the disclosure, the (5-1) hole 530-3a may be the seventh hole, and the (5-2) hole 530-3b may be the eighth hole, but this embodiment of the disclosure is not limited to these numbers.

[0455] According to an exemplary embodiment of this disclosure, the (5-1) hole 530-3a may correspond to (or overlap with) the (2-1) vibration device 530-1. For example, the (5-1) hole 530-3a may have the same shape as the (2-1) vibration device 530-1, but the exemplary embodiment of this disclosure is not limited thereto. For example, the size of the (5-1) hole 530-3a may be the same as or larger than the size of the (2-1) vibration device 530-1. For example, the (5-1) hole 530-3a may provide displacement space for the (2-1) vibration device 530-1, thus increasing the displacement of the (2-1) vibration device 530-1. For example, the (5-1) hole 530-3a may be covered by the second plate 531 of the (2-1) vibration device 530-1. For example, the vibration generator 533 of the (2-1) vibration device 530-1 can be disposed at the second plate 531. For example, the vibration generator 533 of the (2-1) vibration device 530-1 can be disposed at the rear surface of the second plate 531.

[0456] According to an exemplary embodiment of this disclosure, the (5-2) hole 530-3b may correspond to (or overlap with) the (3-2) hole 413-2 of the first cover 400. For example, the (5-2) hole 530-3b may correspond to (or overlap with) the (2-2) vibration device 530-2. For example, the (5-2) hole 530-3b may have the same shape as the (3-2) hole 413-2 of the first cover 400, but the exemplary embodiment of this disclosure is not limited thereto. For example, the size of the (5-2) hole 530-3b may be the same as or different from the size of the (3-2) hole 413-2 of the first cover 400. For example, the size of the (5-2) hole 530-3b may be smaller or larger than the size of the (3-2) hole 413-2.

[0457] According to an exemplary embodiment of this disclosure, the (5-2) hole 530-3b can be covered by the (2-2) vibration device 530-2. For example, the (2-2) vibration device 530-2 can be disposed on the rear surface of the third member 530-3 and can cover the (5-2) hole 530-3b. For example, the (2-2) vibration device 530-2 can output a second sound pressure level through the (5-2) hole 530-3b. For example, the (2-2) vibration device 530-2 can output a low-pitched sound through the (5-2) hole 530-3b, but the exemplary embodiment of this disclosure is not limited thereto.

[0458] According to an exemplary embodiment of this disclosure, the third component 530-3 can be accommodated (or housed) within the (1-2) component 630 and can support one or more of the (2-1) vibration device 530-1 and the (2-2) vibration device 530-2. For example, the third component 530-3 can be connected to or coupled to at least a portion of the (1-2) component 630. For example, the third component 530-3 can be referred to as a second support component, a second support frame, a second support panel, a second guide panel, or a second guide component, but the exemplary embodiment of this disclosure is not limited thereto.

[0459] According to an exemplary embodiment of this disclosure, the portion 530-3e of the third component 530-3 disposed between the (5-1) hole 530-3a and the (5-2) hole 530-3b can acoustically separate the space where the (2-1) vibrating device 530-1 is disposed and the space where the (2-2) vibrating device 530-2 is disposed. Therefore, interference between the sound pressure level (or sound wave) generated by the vibration of the (2-1) vibrating device 530-1 and the sound pressure level (or sound wave) generated by the vibration of the (2-2) vibrating device 530-2 can be prevented or reduced, thereby preventing or reducing the degradation of sound quality or characteristics.

[0460] The first component 600 according to another exemplary embodiment of the present disclosure can be implemented by modifying the first component 600 according to the exemplary embodiment of the present disclosure. Except that the first component 600 according to another exemplary embodiment of the present disclosure includes a through hole 670, the first component 600 according to another exemplary embodiment of the present disclosure may be the same as or similar to the first component 600 of the above exemplary embodiments of the present disclosure. Therefore, redundant and repetitive descriptions may be omitted or briefly provided below.

[0461] According to another exemplary embodiment of the present disclosure, a first component 600 may be disposed on the rear surface of the first cover 400. For example, the first component 600 may overlap with each of the (4-1) holes 510-3a and (4-2) holes 510-3b, and may overlap with each of the (5-1) holes 530-3a and (5-2) holes 530-3b. According to another exemplary embodiment of the present disclosure, the first component 600 may include a (1-1) component 610 and a (1-2) component 630.

[0462] The (1-1) member 610 may cover all of the first vibration devices 510. For example, the (1-1) member 610 may cover the (1-1) vibration devices 510-1 and the (1-2) vibration devices 510-2. For example, the (1-1) member 610 may be provided at the first region A1 of the rear portion 410 of the first cover 400 by means of the (8-1) connecting member 651. For example, the (1-1) member 610 may cover the (3-1) hole 413-1 provided at the rear portion 410 of the first cover 400. The (8-1) connecting member 651 of this embodiment may be the tenth connecting member, and the (8-2) connecting member 653 of this embodiment may be the eleventh connecting member, but this embodiment is not limited to these numbers.

[0463] According to another exemplary embodiment of this disclosure, the (1-1) component 610 may include a bottom portion 611, a side portion 613, and a first through hole (or first hole) 671.

[0464] According to an exemplary embodiment of this disclosure, the bottom portion 611 may be disposed on the rear surface of the first vibration device 510. For example, the bottom portion 611 may overlap with each of the (4-1) holes 510-3a and (4-2) holes 510-3b. For example, the bottom portion 611 may cover the rear surface of the first vibration device 510. For example, the bottom portion 611 may be disposed on the rear surface of the (1-1) vibration device 510-1 and the (1-2) vibration device 510-2. For example, the bottom portion 611 may cover the rear surface of the (1-1) vibration device 510-1 and the (1-2) vibration device 510-2.

[0465] According to an exemplary embodiment of this disclosure, the lateral portion 613 may be disposed on the lateral surface of the first vibration device 510 and may cover the lateral surface of the first vibration device 510. For example, the lateral portion 613 may be connected to one side (or end) of the bottom portion 611. For example, the lateral portion 613 may be disposed along the periphery of the bottom portion 611. For example, one side (or one end) of the lateral portion 613 may be disposed on the rear surface of the rear portion 410 of the first cover 400 via the first (8-1) connecting member 651.

[0466] According to another exemplary embodiment of this disclosure, a first through hole 671 may be provided at the bottom portion 611. For example, the first through hole 671 may correspond to (or overlap with) the (1-2) vibration device 510-2. For example, the first through hole 671 may provide displacement space for the (1-2) vibration device 510-2, thereby increasing the displacement of the (1-2) vibration device 510-2. The first through hole 671 may be a path through which a portion of the (1-2) vibration device 510-2 can pass. For example, the central portion of the (1-2) vibration device 510-2 may be exposed to or protrude to the outside of the (1-1) member 610 through the first through hole 671. According to another exemplary embodiment of this disclosure, the first through hole 671 may correspond to (or overlap with) the (1-1) vibration device 510-1. For example, the first through hole 671 may be a path through which a portion of the (1-1) vibration device 510-1 can pass. For example, the central portion of the (1-1) vibration device 510-1 may be exposed to the outside of the (1-1) member 610 or protrude to the outside of the (1-1) member 610 through the first through hole 671.

[0467] The (1-2) member 630 can cover all of the second vibration devices 530. For example, the (1-2) member 630 can cover the (2-1) vibration devices 530-1 and the (2-2) vibration devices 530-2. For example, the (1-2) member 630 can be disposed at the second region A2 of the rear portion 410 of the first cover 400 by means of the (8-2) connecting member 653. For example, the (1-2) member 630 can cover the (3-2) hole 413-2 disposed at the rear portion 410 of the first cover 400.

[0468] According to another exemplary embodiment of this disclosure, the (1-2) component 630 may include a bottom portion 631, a side portion 633, and a second through hole (or second hole) 673.

[0469] According to an exemplary embodiment of this disclosure, the bottom portion 631 may be disposed on the rear surface of the second vibration device 530. For example, the bottom portion 631 may overlap with each of the (5-1) holes 530-3a and (5-2) holes 530-3b. For example, the bottom portion 631 may cover the rear surface of the first vibration device 530. For example, the bottom portion 611 may be disposed on the rear surface of the (2-1) vibration device 530-1 and the rear surface of the (2-2) vibration device 530-2. For example, the bottom portion 611 may cover the rear surface of the (2-1) vibration device 530-1 and the rear surface of the (2-2) vibration device 530-2.

[0470] According to an exemplary embodiment of this disclosure, the lateral portion 613 may be disposed on the lateral surface of the second vibration device 530 and may cover the lateral surface of the second vibration device 530. For example, the lateral portion 613 may be connected to one side (or end) of the bottom portion 611. For example, the lateral portion 613 may be disposed along the periphery of the bottom portion 611. For example, one side (or end) of the lateral portion 613 may be disposed on the rear surface of the rear portion 410 of the first cover 400 via the first (8-2) connecting member 653.

[0471] According to another exemplary embodiment of this disclosure, a second through hole 673 may be provided at the bottom portion 611. For example, the second through hole 673 may correspond to (or overlap with) the (2-2) vibration device 530-2. For example, the second through hole 673 may provide displacement space for the (1-2) vibration device 510-2, thereby increasing the displacement of the (1-2) vibration device 510-2. For example, the first through hole 671 may be a path through which a portion of the (2-2) vibration device 530-2 can pass. For example, the central portion of the (2-2) vibration device 530-2 may be exposed to the outside of the (1-2) member 630 or protrude to the outside of the (1-1) member 610 through the second through hole 673. According to another exemplary embodiment of this disclosure, the second through hole 673 may correspond to (or overlap with) the (2-1) vibration device 530-1. For example, the second through hole 673 may be a path through which a portion of the (2-1) vibration device 530-1 can pass. For example, the central portion of the (2-1) vibration device 530-1 may be exposed to the outside of the (1-2) member 630 or protrude to the outside of the (1-1) member 610 through the second through hole 673.

[0472] according to Figures 14 to 16 In the exemplary embodiment of this disclosure shown, the (1-1) vibration device 510-1, the (1-2) vibration device 510-2, the second component 510-3, and the (1-1) component 610 can constitute a first vibration generating device. The (2-1) vibration device 530-1, the (2-2) vibration device 530-2, the third component 530-3, and the (1-2) component 630 can constitute a second vibration generating device. The (3-1) hole can be the (1-1) hole, and the (3-2) hole can be the (1-2) hole.

[0473] According to exemplary embodiments of this disclosure, a vibration generating device corresponding to a first vibration generating device or / and a second vibration generating device can be connected to a vibrating object (or vibrating member) to cause the vibrating object (or vibrating member) to vibrate, thereby outputting sound. For example, the vibrating object may include a vibrating plate, and the vibrating plate may include one or more sheets or layers of metallic material or non-metallic or composite non-metallic materials, including wood, plastic, glass, cloth, fiber, paper, rubber, and leather. For example, the vibrating object may include a display panel comprising a plurality of pixels configured to display an image, or may include a non-display panel among light-emitting diode (LED) lighting panels, organic light-emitting lighting panels, and inorganic light-emitting lighting panels. For example, the vibrating object may include a display panel containing a plurality of pixels configured to display an image, a screen panel projecting an image from a display device, a lighting panel, a sign panel, vehicle exterior material, building ceiling material, building interior material, building windows, aircraft interior material, aircraft windows, metal, wood, rubber, plastic, glass, fiber, cloth, paper, leather, and a reflector, among others.

[0474] According to an exemplary embodiment of this disclosure, because a first component 600 is provided, the air impedance of the corresponding vibrating device 500 can be controlled, thereby providing a device that allows the vocal cords to extend. Furthermore, the device according to an exemplary embodiment of this disclosure may include a diaphragm-type vibrating device. A device with enhanced sound pressure level characteristics and / or sound characteristics including high-pitched vocal cords can be provided. Additionally, the thickness of the device can be reduced, thereby providing a device with a compact structure.

[0475] Figure 17 It shows Figure 14 An example of a vibration generator is shown.

[0476] Reference Figure 17 According to another exemplary embodiment of the present disclosure, the first vibration generator 513 of the device may include a vibrating portion (or vibrating layer) PE, a first electrode layer E1, and a second electrode layer E2. For example, the vibrating portion PE may be a piezoelectric device.

[0477] According to an exemplary embodiment of this disclosure, the first vibration generator 513 may be disposed on the plate 511. According to another exemplary embodiment of this disclosure, the first vibration generator 513 may be attached to the plate 511, which includes a metallic material.

[0478] The vibrating portion PE may include a piezoelectric material exhibiting a piezoelectric effect. For example, a piezoelectric material may possess the property that, when pressure or torsion is applied to a crystal structure by an external force, a potential difference arises due to dielectric polarization caused by changes in the relative positions of positive (+) and negative (-) ions, and vibration is generated by an electric field based on the voltage applied thereto. For example, the vibrating portion PE may be a vibrating layer, a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric vibrating portion, a piezoelectric material portion, an electroactive portion, a piezoelectric structure, an inorganic material layer, or an inorganic material portion, etc., but the exemplary embodiments of this disclosure are not limited thereto.

[0479] The vibrating portion PE can be formed of a transparent, translucent, or opaque piezoelectric material, and can be transparent, translucent, or opaque. The vibrating portion PE can include a ceramic matrix material configured to generate relatively high vibrations, or can include a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure can have both piezoelectric and inverse piezoelectric effects, and can be a directional plate-like structure. The perovskite crystal structure can be represented by the chemical formula "ABO3". In the chemical formula, "A" can include a divalent metal element, and "B" can include a tetravalent metal element. For example, in the chemical formula "ABO3", "A" and "B" can be cations, and "O" can be anion. For example, the chemical formula "ABO3" can include at least one or more of lead(II) titanate (PbTiO3), lead zirconate (PbZrO3), lead zirconate titanate (PbZrTiO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3), but the exemplary embodiments of this disclosure are not limited thereto.

[0480] The vibrating portion PE according to an exemplary embodiment of this disclosure may include one or more materials selected from lead (Pb), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), niobium (Nb), magnesium (Mg), manganese (Mn), and indium (In), but the exemplary embodiments of this disclosure are not limited thereto. The vibrating portion PE according to another exemplary embodiment of this disclosure may include a material based on lead zirconate titanate (PZT), which includes lead (Pb), zirconium (Zr), and titanium (Ti); or may include a material based on lead zirconate nickel niobate (PZNN), which includes lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but the exemplary embodiments of this disclosure are not limited thereto. According to another exemplary embodiment of this disclosure, the vibrating portion PE may include a material based on magnesium lead niobate (PMN), a material based on nickel lead niobate (PNN), a material based on lead zirconate niobate (PZN), or a material based on indium lead niobate (PIN), but the exemplary embodiments of this disclosure are not limited thereto. PMN-based materials may include Pb, Mg, and Nb, and may include, for example, Pb(Mg,Nb)O3. PNN-based materials may include Pb, Ni, and Nb, and may include, for example, Pb(Ni,Nb)O3. PIN-based materials may include Pb, In, and Nb, and may include, for example, Pb(In,Nb)O3. According to another exemplary embodiment of this disclosure, the vibrating portion PE may include at least one or more of CaTiO3, BaTiO3, and SrTiO3, which do not contain Pb, but the exemplary embodiments of this disclosure are not limited thereto.

[0481] The vibrating portion PE according to exemplary embodiments of this disclosure is not limited to... Figure 17 The quadrilateral shape shown can be constructed as a circle, an ellipse, a triangle or more polygons, or various other shapes.

[0482] The first electrode layer E1 can be disposed on the first surface (or upper surface) of the vibrating portion PE and can be electrically connected to the first surface of the vibrating portion PE. For example, the first electrode layer E1 can have a single electrode shape (or a common electrode shape) disposed on the entire first surface of the vibrating portion PE. The first electrode layer E1 according to an exemplary embodiment of this disclosure may include a transparent conductive material, a semi-transparent (semi-bright) conductive material, or an opaque conductive material. For example, examples of transparent or semi-transparent conductive materials may include indium tin oxide (ITO) or indium zinc oxide (IZO), but the exemplary embodiments of this disclosure are not limited thereto. Opaque conductive materials may include aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), magnesium (Mg), etc., or any alloy thereof, but the exemplary embodiments of this disclosure are not limited thereto.

[0483] The second electrode layer E2 may be located on a second surface (or rear surface) opposite to the first surface of the vibrating portion PE, and may be electrically connected to the second surface of the vibrating portion PE. For example, the second electrode layer E2 may have a single electrode shape (or a common electrode shape) disposed across the entire second surface of the vibrating portion PE. According to exemplary embodiments of this disclosure, the second electrode layer E2 may include a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode layer E2 may include the same material as the first electrode layer E1, but exemplary embodiments of this disclosure are not limited thereto. As another exemplary embodiment of this disclosure, the second electrode layer E2 may include a material different from the first electrode layer E1.

[0484] The vibrating portion PE can be polarized (or polarized) in a gas at a specific temperature or in a gas at a temperature that can be changed from high temperature to room temperature by applying a specific voltage to the first electrode layer E1 and the second electrode layer E2, but the embodiments disclosed herein are not limited thereto. For example, the vibrating portion PE can alternately and repeatedly contract and expand based on the inverse piezoelectric effect according to a driving signal (or sound signal or voice signal) applied to the first electrode layer E1 and the second electrode layer E2 from an external source. Thus, displacement or vibration (or driving) can be performed.

[0485] Figure 18 It is relative to Figure 14 The connection structure of the device shown follows Figure 1 Another cross-sectional view taken by line I-I' shown. Figure 19 yes Figure 18 An enlarged view of region "E" shown.

[0486] Figure 18 and Figure 19 The device shown in another exemplary embodiment of this disclosure can be used in Figures 14 to 16 The device shown in the exemplary embodiment of this disclosure is implemented by adding a connecting member. The following description will focus more on the modifications and related elements, and may give brief or omit redundant descriptions of the same or similar elements.

[0487] Reference Figure 18 and Figure 19According to another exemplary embodiment of the present disclosure, the (1-1) vibration device 510-1 may include a first plate 511 and a vibration generator 513. For example, the vibration generator (or first vibration generator) 513 of the (1-1) vibration device 510-1 may be disposed on the rear surface of the first plate 511 via the (7-1) connecting member 517. According to another exemplary embodiment of the present disclosure, the (2-1) vibration device 530-1 may include a second plate 531 and a vibration generator 533. For example, the vibration generator (or second vibration generator) 533 of the (2-1) vibration device 530-1 may be disposed on the rear surface of the second plate 531 via the (7-2) connecting member 537.

[0488] The device according to another exemplary embodiment of the present disclosure may further include eleventh connecting members 519 and 539. For example, the device according to another exemplary embodiment of the present disclosure may include a (11-1) connecting member 519 and a (11-2) connecting member 539. The (11-1) connecting member 519 of the present disclosure embodiment may be a sixteenth connecting member, and the (11-2) connecting member 539 of the present disclosure embodiment may be a seventeenth connecting member, but the present disclosure embodiment is not limited to these numbers.

[0489] The (11-1) connecting member 519 can be disposed between the second member 510-3 and the first plate 511. Therefore, the first plate 511 can be disposed at the second member 510-3 via the (11-1) connecting member 519. For example, the (11-1) connecting member 519 can be disposed on one side (or edge or periphery) of the second member 510-3. For example, the (11-1) connecting member 519 can overlap with one side (or edge or periphery) of the second member 510-3. For example, the (11-1) connecting member 519 can be disposed on one side (or edge or periphery) of the first plate 511. For example, the (11-1) connecting member 519 can overlap with one side (or edge or periphery) of the first plate 511. For example, the (11-1) connecting member 519 can be disposed between one side (or edge or periphery) of the second member 510-3 and one side (or edge or periphery) of the first plate 511. For example, the (11-1) connecting member 519 may overlap with the first member 600. For example, the (11-1) connecting member 519 may overlap with the (1-1) member 610. For example, the (11-1) connecting member 519 may overlap with the bottom portion 611 of the (1-1) member 610. For example, the (11-1) connecting member 519 may overlap with the (4-1) hole 510-3a, but the exemplary embodiments of this disclosure are not limited thereto. For example, the (11-1) connecting member 519 may not overlap with the (4-1) hole 510-3a.

[0490] The (11-2) connecting member 539 can be disposed between the third member 530-3 and the second plate 531. Therefore, the second plate 531 can be disposed at the third member 530-3 via the (11-2) connecting member 539. For example, the (11-2) connecting member 539 can be disposed on one side (or edge or periphery) of the third member 530-3. For example, the (11-2) connecting member 539 can overlap with one side (or edge or periphery) of the third member 530-3. For example, the (11-2) connecting member 539 can be disposed on one side (or edge or periphery) of the second plate 531. For example, the (11-2) connecting member 539 can overlap with one side (or edge or periphery) of the second plate 531. For example, the (11-2) connecting member 539 can be disposed between one side (or edge or periphery) of the third member 530-3 and one side (or edge or periphery) of the second plate 531. For example, the (11-2) connecting member 539 may overlap with the first member 600. For example, the (11-2) connecting member 539 may overlap with the (1-2) member 630. For example, the (11-2) connecting member 539 may overlap with the bottom portion 631 of the (1-2) member 630. For example, the (11-2) connecting member 539 may overlap with the (5-1) hole 530-3a, but the exemplary embodiments of this disclosure are not limited thereto. For example, the (11-2) connecting member 539 may not overlap with the (5-1) hole 530-3a.

[0491] The device according to another exemplary embodiment of this disclosure may further include a third air gap AG3.

[0492] A third air gap AG3 can be disposed between the first cover 400 and each of the (1-1) vibrating devices 510-1 and (2-1) vibrating devices 530-1. For example, the third air gap AG3 can be disposed between the rear portion 410 of the first cover 400 and each of the (1-1) vibrating devices 510-1 and (2-1) vibrating devices 530-1. For example, the third air gap AG3 can be disposed between the rear portion 410 of the first cover 400 and each of the first vibration generator 513 and the second vibration generator 533. The third air gap AG3 can transmit the sound generated by the (1-1) vibrating device 510-1 to the front surface of the device and can ensure the vibration space of the (1-1) vibrating device 510-1. In addition, the third air gap AG3 can transmit the sound generated by the (2-1) vibrating device 530-1 to the front surface of the device and can ensure the vibration space of the (2-1) vibrating device 530-1. According to the embodiments of this disclosure, the third air gap AG3 may include the (3-1) air gap AG3a and the (3-2) air gap AG3b. The (3-1) air gap AG3a of the embodiments of this disclosure may be the third air gap, and the (3-2) air gap AG3b of the embodiments of this disclosure may be the fourth air gap, but the embodiments of this disclosure are not limited to these designations.

[0493] The (3-1) air gap AG3a can be disposed between the (1-1) vibrating device 510-1 and the first cover 400. For example, the (3-1) air gap AG3a can be disposed between the (1-1) vibrating device 510-1 and the rear portion 410 of the first cover 400. For example, the (3-1) air gap AG3a can be disposed between the rear portion 410 of the first cover 400 and the first vibration generator 513. For example, the (3-1) air gap AG3a can transmit the sound generated by the first vibration generator 513 to the front surface of the device and can ensure the vibration space of the first vibration generator 513.

[0494] The (3-2) air gap AG3b can be disposed between the (2-1) vibrating device 530-1 and the first cover 400. For example, the (3-2) air gap AG3b can be disposed between the (2-1) vibrating device 530-1 and the rear portion 410 of the first cover 400. For example, the (3-2) air gap AG3b can be disposed between the rear portion 410 of the first cover 400 and the second vibration generator 533. For example, the (3-2) air gap AG3b can transmit the sound generated by the second vibration generator 533 to the front surface of the device and can ensure the vibration space of the (2-1) vibrating device (the (2-1) vibration generator) 530-1.

[0495] According to an exemplary embodiment of this disclosure, a third air gap AG3 may be disposed between the first cover 400 and the vibrating device 500, thereby providing a device with enhanced sound pressure level characteristics and / or acoustic characteristics. According to an exemplary embodiment of this disclosure, because the first component 600 is provided, the air impedance of the corresponding vibrating device 500 can be controlled, thereby providing a device that allows the vocal cords to extend. Furthermore, the device according to an exemplary embodiment of this disclosure may include a diaphragm-type vibrating device. A device with enhanced sound pressure level characteristics and / or acoustic characteristics including high-pitched vocal cords can be provided. Furthermore, the thickness of the device can be reduced, thereby providing a device with a compact structure.

[0496] Figure 20 It is a graph showing the sound pressure level characteristics of a device according to an exemplary embodiment of the present disclosure. Figure 21 This is a graph illustrating another sound pressure level characteristic of the device according to an exemplary embodiment of this disclosure.

[0497] exist Figure 20 and Figure 21 In this diagram, the horizontal axis represents frequency (Hz), and the vertical axis represents sound pressure level (dB). Figure 20 In the diagram, the dashed line represents the sound pressure level characteristics measured in a device excluding components, and the solid line represents the sound pressure level characteristics measured in a device including components. Figure 21 In the diagram, the dashed line represents the sound pressure level characteristics measured in a device including the component but excluding the second cover, and the solid line represents the sound pressure level characteristics measured in a device including the component and the second cover.

[0498] Reference Figure 20 As can be seen, the sound pressure level in the low-frequency band (approximately 300 Hz or less) measured with the first component 600 included (solid line) is higher than the sound pressure level measured without the first component 600 (dashed line). Therefore, as in the exemplary embodiment of this disclosure, the first component 600 can be provided in the device. Thus, the sound pressure level characteristics and sonic characteristics of the low-pitched vocal bands can be enhanced.

[0499] Reference Figure 21 Within the overall range of the measured frequency, it can be seen that the sound pressure level characteristics measured with the first component 600 and the second cover 700 included (solid line) are similar to those measured with the first component 600 included but not the second cover 700 included (dashed line). Therefore, as in the exemplary embodiment of this disclosure, the first component 600 can be provided in the device. Thus, a sound with a consistent sound pressure level can be generated regardless of whether the second cover 700 is incorporated.

[0500] Figure 22 The rear surface of an exemplary device according to another exemplary embodiment of this disclosure is shown. Figure 23 yes Figure 22 An exploded perspective view of the device shown.

[0501] Figure 22 and Figure 23 The device shown in another exemplary embodiment of this disclosure can be described above with reference to Figures 14 to 19 This is achieved by modifying one or more components 600 and adding a rear vibration component 800 in the described exemplary device. Applicable to... Figure 22 and Figure 23 The descriptions of the first component 600 and the rear vibration component 800 can be applied equally to the above references. Figures 1 to 13 The exemplary device described herein. The following description may focus more on modifications and related elements, and may briefly give or omit repeated descriptions of the same or similar elements.

[0502] Reference Figure 14 and Figure 15 (or Figure 18 and Figure 19 ), Figure 22 and Figure 23 The device according to another exemplary embodiment of this disclosure may further include one or more rear vibration members 800. For example, the rear vibration member 800 may be disposed on the rear surface of the first member 600. The first member 600 (e.g., the (1-1) member 610 or the (1-2) member 630) may include a receiving portion 690 on which the rear vibration member 800 may be disposed. For example, the receiving portion 690 may be implemented with a shape having a portion of the first member 600 protruding from the first member 600 toward the first cover 400 or protruding in the opposite direction away from the first cover 400. For example, the portion protruding from the first member 600 (the (1-1) member 610) may be implemented in the bottom portion (e.g., 611) or the lateral portion (e.g., 613) of the (1-1) member 610 of the first member 600. For example, the receiving portion 690 may be a groove formed on a portion of the front surface of the first member 600, or it may be a groove formed on a portion of the rear surface of the first member 600. For example, the grooved portion may be located at the bottom portion (611) or the lateral portion (613) of the member (e.g., member (1-1) 610). For example, the receiving portion 690 may include a hole or slit. For example, the receiving portion 690 may have a shape corresponding to the shape of the rear vibrating member 800. For example, the receiving portion 690 may include a hole or slit overlapping with the rear vibrating member 800.

[0503] The (1-1) component 610 may be disposed in the first region A1 of the rear portion 410 of the first cover 400, and may include one or more first receiving portions 691. The number and shape of the first receiving portions 691 may be determined or adjusted based on the desired acoustic or haptic feedback characteristics.

[0504] According to an exemplary embodiment of this disclosure, the first cover 400 may include a first peripheral region EA1 and a second peripheral region EA2 relative to a first centerline CL1 in a first direction X (or width direction). For example, a first member 600 may be disposed in one or more of the first peripheral regions EA1 and the second peripheral regions EA2 of the first cover 400. For example, a first (1-1) member 610 may be disposed in a first region A1 of the rear portion 410 of the first cover 400. For example, the first (1-1) member 610 may be formed in the first region A1 of the rear portion 410 of the first cover 400 along a second direction Y (or length direction) of the rear portion 410 of the first cover 400.

[0505] According to an exemplary embodiment of this disclosure, the first cover 400 may include a first region UA ​​and a second region LA relative to a second centerline CL2 in a second direction Y (or a length direction). For example, one or more first members 600 may be disposed above the first region UA ​​and the second region LA of the first cover 400.

[0506] For example, the (1-1) member 610 may be positioned above the first region UA ​​and the second region LA of the first cover 400 relative to the second center line (or length center line) CL2 in the second direction Y (or length direction) of the first cover 400.

[0507] According to an exemplary embodiment of this disclosure, the first component 600 may include a first portion (e.g., UA1 and UA2) and a second portion (e.g., LA1 and LA2). For example, the first portions UA1 and UA2 may correspond to or be located in a first region UA ​​of the first cover 400. For example, the second portions LA1 and LA2 may correspond to or be located in a second region LA of the first cover 400.

[0508] For example, the (1-1)th component 610 may include a first portion UA1 disposed at or overlapping with a first region UA ​​of the first cover 400, and a second portion LA1 disposed at or overlapping with a second region LA of the first cover 400. For example, the first region UA ​​may be an upper region, but this disclosure is not limited thereto. For example, the second region LA may be a lower region, but this disclosure is not limited thereto. For example, the first portion UA1 may be in the upper region, but this disclosure is not limited thereto. For example, the second portion LA1 may be in the lower region, but this disclosure is not limited thereto.

[0509] For example, the first vibration device 510 may be disposed at the first portion UA1 or UA2 or the second portion LA1 or LA2 of the first member 600. For example, the first vibration device 510 may be disposed between the first region UA ​​of the first peripheral region EA1 of the first cover 400 and the first portion UA1 of the (1-1) member 610. In this case, the first receiving portion 691 may be disposed at the second portion LA1 of the (1-1) member 610. For example, the first vibration device 510 may be disposed at the first portion UA1 of the (1-1) member 610, and the first receiving portion 691 may be disposed at the second portion LA1 of the (1-1) member 610. The first portion UA1 of the (1-1) member 610 may correspond to or be disposed at the first region UA ​​of the first peripheral region EA1 of the first cover 400. The second portion LA1 of the (1-1) member 610 may correspond to or be disposed at the second region LA of the first peripheral region EA1 of the first cover 400.

[0510] For example, the first vibration device 510 may be disposed between the second region LA of the first peripheral region EA1 of the first cover 400 and the second portion LA1 of the (1-1) member 610. In this case, the first receiving portion 691 may be disposed at the first portion UA1 of the (1-1) member 610. For example, the first vibration device 510 may be disposed at the second portion LA1 of the (1-1) member 610, and the first receiving portion 691 may be disposed at the first portion UA1 of the (1-1) member 610.

[0511] The (1-2) component 630 may be disposed in the second region A2 of the rear portion 410 of the first cover 400, and may include one or more second receiving portions 693. The number and shape of the second receiving portions 693 may be determined or adjusted based on the desired acoustic or haptic feedback characteristics.

[0512] For example, the (1-2) member 630 may be disposed at the second peripheral region EA2 of the rear portion 410 of the first cover 400. For example, the (1-2) member 630 may be formed in the second peripheral region EA2 of the rear portion 410 of the first cover 400 along the second direction Y (or length direction) of the rear portion 410. For example, the (1-2) member 630 may be disposed above the first region UA ​​and the second region LA of the first cover 400 relative to the second center line (or length center line) CL2 in the second direction Y (or length direction) of the first cover 400. For example, the (1-2) member 630 may include a first portion UA1 disposed at or overlapping with the first region UA ​​of the first cover 400, and a second portion LA1 disposed at or overlapping with the second region LA of the first cover 400. For example, the first region UA ​​may be an upper region, but this disclosure is not limited thereto. For example, the second region LA may be a lower region, but this disclosure is not limited thereto. For example, the first portion UA2 may be an upper region, but this disclosure is not limited thereto. For example, the second part LA2 may be in the lower region, but the embodiments disclosed herein are not limited thereto.

[0513] For example, the second vibration device 530 may be disposed between the first region UA ​​of the second peripheral region EA2 of the first cover 400 and the first portion UA2 of the (1-2) member 630. In this case, the second receiving portion 693 may be disposed at the second portion LA2 of the (1-2) member 630. For example, the second vibration device 530 may be disposed at the first portion UA2 of the (1-2) member 630, and the second receiving portion 693 may be disposed at the second portion LA2 of the (1-2) member 630. The first portion UA2 of the (1-2) member 630 may correspond to or be disposed at the first region UA ​​of the second peripheral region EA2 of the first cover 400. The second portion LA2 of the (1-2) member 630 may correspond to or be disposed at the second region LA of the second peripheral region EA2 of the first cover 400.

[0514] For example, the second vibration device 530 may be disposed between the second region LA of the second peripheral region EA2 of the first cover 400 and the second portion LA2 of the (1-2) member 630. In this case, the second receiving portion 693 may be disposed at the first portion UA2 of the (1-2) member 630. For example, the second vibration device 530 may be disposed at the second portion LA2 of the (1-2) member 630, and the second receiving portion 693 may be disposed at the first portion UA2 of the (1-2) member 630.

[0515] According to another embodiment of the device disclosed herein, a rear vibration member 800 may be disposed at the first member 600. For example, the rear vibration member 800 may be disposed in a receiving portion 690 formed at the first member 600. For example, the rear vibration member 800 may be disposed at a first portion UA1 or UA2 or a second portion LA1 or LA2 of the first member 600. For example, the rear vibration member 800 may be disposed at the front surface of the first member 600 opposite to the first cover 400, or it may be disposed at the rear surface of the first member 600 facing the front surface of the first member 600.

[0516] The rear vibration member 800 can vibrate based on the vibration of the corresponding vibration device 500 due to the vibration of the first member 600, thereby enhancing the sound characteristics of the bass vocal cords. The rear vibration member 800 can vibrate based on the vibration of the vibration device 500 and through the vibration of the first member 600. The rear vibration member 800 can serve as an additional vibration source separated from the vibration device 500, thereby enhancing the intensity of tactile feedback and vibration sensation (or vibration characteristics). Therefore, the rear vibration member 800 can be referred to as a radiating member, a rear radiating member, a sound radiating member, a secondary vibration member, a tactile member, a tactile feedback member, a rear vibration member, or a reactive vibration member. However, the embodiments disclosed herein are not limited thereto.

[0517] The rear vibration member 800 according to an exemplary embodiment of the present disclosure may include a first rear vibration member 810 and a second rear vibration member 830.

[0518] The first rear vibration member 810 may be disposed at the (1-1) member 610. For example, the first rear vibration member 810 may be disposed at the bottom portion 611 of the (1-1) member 610. For example, the first rear vibration member 810 may be disposed at the front or rear surface of the bottom portion 611 of the (1-1) member 610. For example, the first rear vibration member 810 may be disposed at the first receiving portion 691 of the (1-1) member 610.

[0519] The first rear vibration member 810 may be disposed at the first portion UA1 or the second portion LA1 of the (1-1) member 610. For example, the first rear vibration member 810 may be disposed at a portion of the (1-1) member 610 that is different from the portion of the (1-1) member 610 where the first vibration device 510 is disposed. For example, the first rear vibration member 810 may be disposed at the second portion LA1 of the (1-1) member 610, and the first vibration device 510 may be disposed at the first portion UA1 of the (1-1) member 610. For example, the first rear vibration member 810 may be disposed at the first portion UA1 of the (1-1) member 610, and the first vibration device 510 may be disposed at the second portion LA1 of the (1-1) member 610.

[0520] According to an exemplary embodiment of the present disclosure, the first rear vibration member 810 may further include a first vibration plate. The first rear vibration member 810 may further include the first vibration plate and a first connecting member inserted between the bottom portion 611 of the (1-1) member 610 and the first vibration plate. For example, the first vibration plate may be disposed at the rear surface of the first receiving portion 691. For example, the first vibration plate may vibrate in response to the vibration of the (1-1) member 610 based on the vibration of at least one or more of the first vibration device 510-1 and the third vibration device 510-2, thereby outputting a tactile vibration. For example, the first rear vibration member 810 may be referred to as a first radiation member, a first rear radiation member, a first sound radiation member, a first primary vibration member, a first tactile member, a first tactile feedback member, a first rear vibration member, or a first reactive vibration member, etc., but embodiments of the present disclosure are not limited thereto.

[0521] In order to ensure sufficient vibration characteristics of the first rear vibration member 810 and match the acoustic phase between the first rear vibration member 810 and the first vibration device 510, the first rear vibration member 810 and the first vibration device 510 can be spaced apart by a certain rate distance (first distance) L1.

[0522] For example, the first distance L1 may be the distance between the center of the first rear vibrating member 810 and the center of the area (or exposed area) 510-2a of the (1-2) vibrating device 510-2 exposed by the first through hole 671 formed at the (1-1) member 610, but the reference position of the first distance L1 is not limited to this. For example, the first distance L1 may be the distance between the center of the first rear vibrating member 810 and the center of the (1-2) vibrating device 510-2 of the first vibrating device 510, wherein the two centers are located in areas opposite to each other relative to the second centerline CL2.

[0523] The second rear vibration member 830 may be disposed at the (1-2) member 630. For example, the second rear vibration member 830 may be disposed at the bottom portion 631 of the (1-2) member 630. For example, the second rear vibration member 830 may be disposed at the front or rear surface of the bottom portion 631 of the (1-2) member 630. For example, the second rear vibration member 830 may be disposed at the second receiving portion 693 of the (1-2) member 630.

[0524] The second post-vibration member 830 may be disposed at the first portion UA2 or the second portion LA2 of the (1-2) member 630. For example, the second post-vibration member 830 may be disposed in a region different from the region where the second vibration device 530 is disposed. For example, the second post-vibration member 830 may be disposed at the second portion LA2 of the (1-2) member 630, and the second vibration device 530 may be disposed at the first portion UA2 of the (1-2) member 630. For example, the second post-vibration member 830 may be disposed at the first portion UA2 of the (1-2) member 630, and the second vibration device 530 may be disposed at the second portion LA2 of the (1-2) member 630.

[0525] The second rear vibration member 830 according to an embodiment of the present disclosure may further include a second vibrating plate. The second rear vibration member 830 may further include a second vibrating plate and a second rear connecting member inserted between the bottom portion 631 of the (1-2) member 630 and the second vibrating plate. For example, the second vibrating plate may be disposed at the rear surface of the receiving portion 693. For example, the second vibrating plate may vibrate in response to the vibration of the (1-2) member 630 based on the vibration of one or more of the first vibration device 510 and the second vibration device 530, thereby outputting tactile vibration. For example, the second rear vibration member 830 may be referred to as a second radiation member, a second rear radiation member, a second sound radiation member, a second secondary vibration member, a second tactile member, a second tactile feedback member, a second rear vibration member, or a second reactive vibration member, etc., but the embodiments of the present disclosure are not limited thereto.

[0526] In order to ensure sufficient vibration characteristics of the second rear vibration member 830 and match the acoustic phase between the second rear vibration member 830 and the second vibration device 530, the second rear vibration member 830 and the second vibration device 530 can be spaced apart from each other by a certain rate distance (second distance) L2.

[0527] For example, the second distance L2 may be the distance between the center of the second rear vibrating member 830 and the center of the area (or exposed area) 530-2a of the (2-2)th vibrating device 530-2 exposed by the second through hole 673 formed at the (1-2) member 630, but the reference position of the second distance L2 is not limited to this. For example, the second distance L2 may be the distance between the center of the second rear vibrating member 830 and the center of the (2-2)th vibrating device 530-2 of the second vibrating device 530, wherein the two centers are located in areas opposite to each other relative to the second centerline CL2. For example, the first distance L1 between the first rear vibrating member 810 and the first vibrating device 510 may be the same as or different from the second distance L2 between the second rear vibrating member 830 and the second vibrating device 530.

[0528] According to an exemplary embodiment of this disclosure, the (1-1) vibration device 510-1, the (1-2) vibration device 510-2, the second component 510-3, the (1-1) component 610, and the first rear vibration component 810 can constitute a first vibration generating device. According to an embodiment of this disclosure, the (2-1) vibration device 530-1, the (2-2) vibration device 530-2, the third component 530-3, the (1-2) component 630, and the second rear vibration component 830 can constitute a second vibration generating device.

[0529] Figure 24 Exemplary measurement points in a display component for measuring vibration acceleration in a device according to an exemplary embodiment of the present disclosure are shown. Figure 24 This is a diagram showing the front surface of an exemplary device.

[0530] exist Figure 24 In Figure 22 In the exemplary device shown, the first to third measuring points MP1, MP2, and MP3 may be positions corresponding to (or overlapping with) the (1-1) member 610 or corresponding to (or overlapping with) the first peripheral region EA1 of the rear portion 410 of the first cover 400. The first measuring point MP1 may be a position corresponding to (or overlapping with) the first vibration device 510 (or the (1-2) vibration device 510-2 of the first vibration device 510). The third measuring point MP3 may be a position corresponding to (or overlapping with) the first rear vibration member 810, and the second measuring point MP2 may be the center position between the first measuring point MP1 and the third measuring point MP3.

[0531] Table 1 below shows the results obtained through... Figure 24 The results are obtained by measuring vibration acceleration at the first to third measurement points MP1, MP2, and MP3 shown. The comparison values ​​are the vibration accelerations measured at the first to third measurement points MP1, MP2, and MP3 of the exemplary device without the application of the first component 600 and the rear vibration component 800. The experimental values ​​are the vibration accelerations measured at the first to third measurement points MP1, MP2, and MP3 of the device with the application of the first component 600 and the rear vibration component 800. The comparison and experimental values ​​are measured by applying a 5-volt sine wave with a frequency of 200 Hz to the second vibration device 530.

[0532] [Table 1]

[0533]

[0534] Referring to Table 1, it can be seen that the experimental value and the comparison value measured at the first measurement point MP1, which corresponds to (overlaps with) the first vibration device 510, are the same. However, the experimental value measured at each of the second measurement point MP2 and the third measurement point MP3 is greater than the corresponding comparison value. Therefore, compared to the exemplary device that does not include the first component 600 and the rear vibration component 800, the vibration acceleration can be increased in the device including the first component 600 and the rear vibration component 800, as in another exemplary embodiment of this disclosure. Therefore, the response time of tactile feedback can be improved. Therefore, because the vibration is transmitted upward at high speed to the area that does not correspond to (overlap with) the first vibration device 510, the vibration characteristics or vibration sensation of the tactile feedback can be improved.

[0535] The vibration device according to the exemplary embodiments of this disclosure can be applied to vibration devices installed in devices. Devices according to the exemplary embodiments of this disclosure can be applied to mobile devices, video phones, smartwatches, watch phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, bending devices, variable devices, sliding devices, electronic devices, electronic organizers, e-books, portable multimedia players (PMPs), personal digital assistants (PDAs), MP3 players, mobile medical devices, desktop personal computers (PCs), laptop PCs, netbooks, workstations, navigation devices, in-vehicle navigation devices, in-vehicle display devices, in-vehicle devices, theater display devices, theater equipment, TVs, wallpaper devices, signage devices, game consoles, laptops, monitors, cameras, camcorders, home appliances, etc. Furthermore, the vibration device according to the exemplary embodiments of this disclosure can be applied to organic light-emitting lighting devices or inorganic light-emitting lighting devices. When the vibration device is applied to a lighting device, the vibration device according to the exemplary embodiments of this disclosure can be used as both a light source and a speaker. Furthermore, when the vibration device of the exemplary embodiments of this disclosure is applied to a mobile device, the vibration device according to the exemplary embodiments of this disclosure can be used as one or more of a speaker, a receiver, and a tactile device, but the exemplary embodiments of this disclosure are not limited thereto.

[0536] The electronic device and vibration generating device according to embodiments of the present disclosure will now be described.

[0537] An electronic device according to an embodiment of the present disclosure may include: a vibration member; a first cover disposed on the rear surface of the vibration member; a vibration device disposed on the rear surface of the first cover; a first member disposed on the rear surface of the first cover and the rear surface of the vibration member; and a rear vibration member disposed on the first member.

[0538] According to some embodiments of this disclosure, the vibration device may include a plate disposed on the rear surface of a first cover and configured to cover a hole, and a vibration generator disposed on the rear surface of the plate.

[0539] According to some embodiments of this disclosure, the plate may have a second thickness that is thinner than the first thickness of the rear portion of the first cover.

[0540] According to some embodiments of this disclosure, the plate may be bent away from the vibrating device in the opposite direction, or in that direction.

[0541] According to some embodiments of this disclosure, the rear vibration member may be disposed on the front surface of the first member opposite to the first cover, or it may be disposed on the rear surface of the first member opposite to the front surface of the first member.

[0542] According to some embodiments of this disclosure, the first component may include a receiving portion, and the rear vibration component may be disposed in the receiving portion.

[0543] According to some embodiments of this disclosure, the receiving portion may be a part of the first member that protrudes toward the first cover or in the opposite direction to the first cover.

[0544] According to some embodiments of this disclosure, the receiving portion may be a groove formed on a portion of the front surface of the first member, or it may be a groove formed on a portion of the rear surface of the first member.

[0545] According to some embodiments of this disclosure, the receiving portion may include a hole or slit overlapping with the rear vibration member.

[0546] According to some embodiments of the present disclosure, the first cover may include a first peripheral region and a second peripheral region relative to a first centerline in the width direction, and the first member may be disposed at at least one or more of the first peripheral region and the second peripheral region of the first cover.

[0547] According to some embodiments of this disclosure, the first cover may include a first region and a second region relative to a second centerline in the length direction, and a first member may be disposed above the first region and the second region of the first cover.

[0548] According to some embodiments of this disclosure, the first component may include a first portion corresponding to a first region of the first cover and a second portion corresponding to a second region of the first cover, and the vibration device may be disposed at the first portion or the second portion of the first component, and the subsequent vibration component may be disposed at the first portion or the second portion of the first component.

[0549] According to some embodiments of the present disclosure, the first component may include a first (1-1) component disposed on the rear surface of a first peripheral region of the first cover, and a second (1-2) component disposed on the rear surface of a second peripheral region of the first cover. Each of the first (1-1) component and the second (1-2) component may include a first portion corresponding to the first region of the first cover and a second portion corresponding to the second region of the first cover. The rear vibration component may include a first rear vibration component disposed on the first portion or the second portion of the first (1-1) component and a second rear vibration component disposed on the first portion or the second portion of the second (1-2) component.

[0550] According to some embodiments of this disclosure, the (1-1) member may have a structure that is symmetrical about the centerline of the vibrating member to the (1-2) member.

[0551] According to some embodiments of this disclosure, the first (1-1) component may include a bottom portion disposed on and covering the rear surface of the first vibration device and a lateral portion disposed on and covering the lateral surface of the first vibration device. The lateral portion of the first (1-1) component is connected to one side of the bottom portion of the first (1-1) component and is disposed along the periphery of the bottom portion of the first (1-1) component. The second (1-2) component may include a bottom portion disposed on and covering the rear surface of the second vibration device and a lateral portion disposed on and covering the lateral surface of the second vibration device. The lateral portion of the second (1-2) component is connected to one side of the bottom portion of the second (1-2) component and is disposed along the periphery of the bottom portion of the second (1-2) component.

[0552] According to some embodiments of the present disclosure, the first rear vibration member may include a first vibration plate and a first connecting member inserted between the (1-1) member and the first vibration plate, and the second rear vibration member may include a second vibration plate and a second connecting member inserted between the (1-2) member and the second vibration plate.

[0553] According to some embodiments of the present disclosure, the vibration device may include a first vibration device disposed on the rear surface of the first peripheral region of the first cover, the first vibration device may be disposed at the first part or the second part of the (1-1) member, and the first rear vibration member may be disposed at the first part or the second part of the (1-1) member.

[0554] According to some embodiments of the present disclosure, the vibration device may include a second vibration device disposed on the rear surface of the second peripheral region of the first cover, the second vibration device may be disposed at the first part or the second part of the (1-2) member, and the second rear vibration member may be disposed at the first part or the second part of the (1-2) member.

[0555] According to some embodiments of the present disclosure, the vibration device may include a first vibration device disposed on the rear surface of a first peripheral region of the first cover and a second vibration device disposed on the rear surface of a second peripheral region of the first cover.

[0556] According to some embodiments of this disclosure, the first distance between the first vibration device and the first rear vibration member may be the same as or different from the second distance between the second vibration device and the second rear vibration member.

[0557] According to some embodiments of the present disclosure, the first cover may include a first hole (1-1) disposed in a first peripheral region and a second hole (1-2) disposed in a second peripheral region, the first vibration device may cover the first hole (1-1), and the second vibration device may cover the second hole (1-2).

[0558] According to some embodiments of the present disclosure, the first vibration device may include a first (1-1) vibration device disposed on the rear surface of the first peripheral region of the first cover and a second (1-2) vibration device disposed adjacent to the first (1-1) vibration device to cover the first (1-1) hole, and the second vibration device may include a first (2-1) vibration device disposed on the rear surface of the second peripheral region of the first cover and a second (2-2) vibration device disposed adjacent to the first (2-1) vibration device to cover the first (1-2) hole.

[0559] According to some embodiments of the present disclosure, each of the (1-1) vibration device and the (2-1) vibration device may include a diaphragm type vibration device, and each of the (1-2) vibration device and the (2-2) vibration device may include a coil type vibration device.

[0560] According to some embodiments of the present disclosure, each of the (1-1) vibration device and the (2-1) vibration device may include: a vibration portion comprising a piezoelectric material; a first electrode layer disposed on a first surface of the vibration portion; and a second electrode layer disposed on a second surface of the vibration portion that is different from the first surface of the vibration portion.

[0561] According to some embodiments of the present disclosure, each of the (1-1) vibration device and the (2-1) vibration device may further include a first protective member disposed above and covering the first electrode layer, and a second protective member disposed below and covering the second electrode layer.

[0562] According to some embodiments of the present disclosure, each of the (1-1) vibration device and the (2-1) vibration device may further include: a first power line disposed on the rear surface of the vibration-facing portion of the first protective member and electrically connected to the first electrode layer; a second power line disposed on the front surface of the vibration-facing portion of the second protective member and electrically connected to the second electrode layer; and a pad component electrically connected to the first power line and the second power line.

[0563] According to some embodiments of the present disclosure, the (1-1) vibration device may include a first vibration generator and a first plate disposed on the rear surface of the first peripheral region of the first cover, and the (2-1) vibration device may include a second vibration generator and a second plate disposed on the rear surface of the second peripheral region of the first cover.

[0564] According to some embodiments of the present disclosure, the first plate may include a second hole (2-1) overlapping with the first hole (1-1), and the second plate may include a second hole (2-2) overlapping with the first hole (1-2).

[0565] According to some embodiments of this disclosure, the first cover may include a (3-1) hole disposed in a first region of the first cover and a (3-2) hole disposed in a second region of the first cover. A first vibration device may be disposed in the first region of the first cover and cover the (3-1) hole, and a second vibration device may be disposed in the second region of the first cover and cover the (3-2) hole.

[0566] According to some embodiments of this disclosure, the first plate may be bent away from or in a direction opposite to the (1-1) hole, and the second plate may be bent away from or in a direction opposite to the (1-2) hole.

[0567] According to some embodiments of this disclosure, a first plate may be disposed on the rear surface of a first peripheral region of a first cover, a first vibration generator may be disposed on the rear surface of the first plate or on the rear surface of a first peripheral region of the first cover, and the first plate may be disposed on the rear surface of the first vibration generator.

[0568] According to some embodiments of this disclosure, the second plate may be disposed on the rear surface of the second peripheral region of the first cover, the second vibration generator may be disposed on the rear surface of the second plate or on the rear surface of the second peripheral region of the first cover, and the second plate may be disposed on the rear surface of the second vibration generator.

[0569] According to some embodiments of this disclosure, each of the first vibration generator and the second vibration generator may include: a vibration portion comprising a plurality of first portions and a plurality of second portions, the plurality of first portions comprising inorganic material, the plurality of second portions being between the plurality of first portions and comprising organic material; a first electrode layer disposed at a first surface of the vibration portion; and a second electrode layer disposed at a second surface of the vibration portion, which is different from the first surface of the vibration portion.

[0570] According to some embodiments of this disclosure, each of the first vibration generator and the second vibration generator may include: a vibration portion comprising a piezoelectric material; a first electrode layer disposed on a first surface of the vibration portion; and a second electrode layer disposed on a second surface of the vibration portion, which is different from the first surface of the vibration portion.

[0571] According to some embodiments of the present disclosure, the first vibration device may include a second component disposed on the rear surface of a first peripheral region of the first cover, and the second vibration device may include a third component disposed on the rear surface of a second peripheral region of the first cover.

[0572] According to some embodiments of this disclosure, the (1-1) vibration device and the (1-2) vibration device may be disposed on the rear surface of the second member, and the (2-1) vibration device and the (2-2) vibration device may be disposed on the rear surface of the third member.

[0573] According to some embodiments of the present disclosure, the second component may include a hole (4-1) corresponding to the (1-1) vibration device and a hole (4-2) corresponding to the (1-2) vibration device, and the third component may include a hole (5-1) corresponding to the (2-1) vibration device and a hole (5-2) corresponding to the (2-2) vibration device.

[0574] According to some embodiments of this disclosure, the third component may further include a portion disposed between the (5-1) hole and the (5-2) hole, which is used to acoustically separate the space for the (2-1) vibration device and the space for the (2-2) vibration device.

[0575] According to some embodiments of this disclosure, the (4-2)th hole may correspond to the (1-1)th hole, and the (5-2)th hole may correspond to the (1-2)th hole.

[0576] According to some embodiments of this disclosure, the vibrating component may include one or more of a display panel, a light-emitting diode illumination panel, an organic light-emitting illumination panel, and an inorganic light-emitting illumination panel that includes a plurality of pixels configured to display an image.

[0577] According to some embodiments of this disclosure, the vibrating component may include one or more materials selected from metal, wood, rubber, plastic, glass, fiber, cloth, paper, and leather.

[0578] According to some embodiments of this disclosure, the vibrating component may include one or more of the following: a display panel containing a plurality of pixels configured to display an image, a screen panel projecting an image from a display device, a lighting panel, a sign panel, vehicle interior material, vehicle window, vehicle exterior material, building ceiling material, building interior material, building window, aircraft interior material, aircraft window, and a reflector.

[0579] According to some embodiments of this disclosure, the electronic device may further include a display component, which includes a display panel configured to display an image. The display component may include a backlight unit disposed on the rear surface of the display panel and a guide component located between the display panel and the backlight unit.

[0580] According to some embodiments of this disclosure, the display panel may also be configured to sense a touch applied to the display member, or to output sound based on the vibration of the vibration device, or to generate tactile feedback in response to a touch.

[0581] According to some embodiments of the present disclosure, the electronic device may further include: a display member including a display panel configured to display an image; a front member disposed on a front surface of the display member; and a second cover disposed on a rear surface of a first cover to accommodate the display member, the first cover, the vibration device, and a first member having a rear vibration member disposed thereon.

[0582] According to some embodiments of this disclosure, the second cover may include a cover housing for providing an enclosed space between the rear portion of the first cover and the rear structure of the second cover.

[0583] According to some embodiments of this disclosure, the vibration device may be a diaphragm vibration device.

[0584] According to some embodiments of this disclosure, the electronic device may also include an air gap disposed between the first cover and the vibration device.

[0585] A vibration generating device according to some embodiments of the present disclosure may include: a first component including a first hole and a second hole; a first vibration device disposed at the first hole; a second vibration device disposed at the second hole; a second component connected to the rear surface of the vibration component and configured to cover the first component, the first vibration device and the second vibration device; and a rear vibration component disposed at the second component.

[0586] According to some embodiments of this disclosure, the rear vibration member can vibrate based on the vibration of at least one or more of the first vibration device and the second vibration device.

[0587] According to some embodiments of this disclosure, the second member may include a receiving portion, and the rear vibration member may be disposed in the receiving portion.

[0588] According to some embodiments of this disclosure, the receiving portion may include a groove formed on a portion of the front surface of the second member or a groove formed on a portion of the rear surface of the second member.

[0589] According to some embodiments of this disclosure, the receiving portion may include a hole overlapping with the rear vibration member.

[0590] According to some embodiments of this disclosure, the rear vibration member may further include a vibration plate disposed at the receiving portion, and the vibration plate may be configured to vibrate by the vibration of a second member based on the vibration of at least one or more of the first vibration device and the second vibration device.

[0591] According to some embodiments of this disclosure, a first vibration device can output a first sound pressure level to a vibration member through a first hole, a second vibration device can output a second sound pressure level different from the first sound pressure level to the vibration member through a second hole, and the subsequent vibration member can output tactile vibration based on the vibration of at least one or more of the first and second vibration devices.

[0592] According to some embodiments of this disclosure, the first vibration device may include a vibration generator containing piezoelectric devices, and the second vibration device may include a coil-type vibration generator.

[0593] According to some embodiments of this disclosure, a first vibration device may be disposed between a first component and a second component and cover a first hole, and a second vibration device may be disposed between a first component and a second component and cover a second hole.

[0594] According to some embodiments of the present disclosure, the second component may include: a bottom portion that covers the rear surface of each of the first component, the first vibration device, and the second vibration device; and a lateral portion that is connected to the vibration component and disposed around the periphery of the bottom portion to cover the lateral surface of each of the first component, the first vibration device, and the second vibration device.

[0595] According to some embodiments of this disclosure, the second component may also include a through hole disposed at the bottom portion and overlapping with the first vibration device.

[0596] According to some embodiments of this disclosure, the first vibration device may further include a plate covering the first hole, and a vibration generator may be disposed between the plate and the second component.

[0597] According to some embodiments of this disclosure, the plate can be bent away from or in the opposite direction to the first hole.

[0598] According to some embodiments of this disclosure, the first vibration device may be a diaphragm vibration device.

[0599] It will be apparent to those skilled in the art that various modifications and variations can be made to this disclosure without departing from the technical spirit or scope thereof. Therefore, embodiments of this disclosure are intended to cover modifications and variations thereof, provided they fall within the scope of the appended claims and their equivalents.

[0600] Cross-references to related applications

[0601] This application claims the benefit and priority of Korean Patent Application No. 10-2020-0190065, filed on December 31, 2020, and Korean Patent Application No. 10-2021-0189239, filed on December 28, 2021, which are incorporated herein by reference as if fully set forth herein.

Claims

1. An electronic device comprising: Vibrating components; A first cover is disposed on the rear surface of the vibrating member; A vibration device is disposed on the rear surface of the first cover; The first component is disposed on the rear surface of the first cover and on the rear surface of the vibrating component. as well as The rear vibration component is disposed at the first component. The first cover includes a first peripheral region and a second peripheral region distributed on both sides of a first centerline in the width direction. The vibration device includes a first vibration device disposed on the rear surface of the first peripheral region of the first cover. The first vibration device includes a diaphragm vibration device and a coil vibration device, and The rear vibration component includes a vibrating plate and a connecting component inserted between the first component and the vibrating plate, and the rear vibration component and the first vibration device are spaced apart by a first distance.

2. The electronic device according to claim 1, wherein, The vibration device includes a second vibration device, which is disposed on the rear surface of the second peripheral region of the first cover, and The second vibration device includes a diaphragm vibration device and a coil vibration device.

3. The electronic device according to claim 1, wherein, The rear vibration member is disposed on the front surface of the first member opposite to the first cover, or the rear vibration member is disposed on the rear surface of the first member opposite to the front surface of the first member.

4. The electronic device according to claim 2, wherein, The vibration device includes: A plate, the plate being disposed on the rear surface of the first cover and configured to cover an opening in the first cover; and A vibration generator is disposed on the rear surface of the plate.

5. The electronic device according to claim 4, wherein, The plate has a second thickness that is thinner than the first thickness of the rear portion of the first cover.

6. The electronic device according to claim 4, wherein, The plate has a shape that bends toward the vibrating device, or has a shape that bends in the opposite direction to the vibrating device.

7. The electronic device according to claim 1, wherein, The first component includes a receiving portion, and The rear vibration member is disposed in the receiving portion.

8. The electronic device according to claim 7, wherein, The receiving portion is a part of the first member that protrudes toward the first cover or in the opposite direction to the first cover.

9. The electronic device according to claim 7, wherein, The receiving portion is a groove formed on a portion of the front surface of the first member, or a groove formed on a portion of the rear surface of the first member.

10. The electronic device according to claim 7, wherein, The receiving portion includes a hole or slit that overlaps with the rear vibration member.

11. The electronic device according to claim 4, wherein, The first component is disposed at at least one or more locations in the first peripheral region and the second peripheral region of the first cover.

12. The electronic device according to claim 11, wherein, The first cover includes a first region and a second region relative to a second centerline in the length direction, and The first component is disposed above the first and second regions of the first cover.

13. The electronic device according to claim 12, wherein, The first component includes a first portion corresponding to a first region of the first cover and a second portion corresponding to a second region of the first cover. The vibration device is installed at the first part or the second part of the first component, and The rear vibration component is disposed at the first part or the second part of the first component.

14. The electronic device according to claim 12, wherein, The first component includes a (1-1) component disposed on the rear surface of the first peripheral region of the first cover and a (1-2) component disposed on the rear surface of the second peripheral region of the first cover. Each of the (1-1)th component and the (1-2)th component includes a first portion corresponding to a first region of the first cover and a second portion corresponding to a second region of the first cover. The rear vibration component includes: A first rear vibration member is disposed at a first or second portion of the (1-1) member; and The second rear vibration member is disposed at the first or second part of the (1-2) member.

15. The electronic device according to claim 14, wherein, The (1-1)th component has a structure that is symmetrical with respect to the center line of the vibrating component and the (1-2)th component.

16. The electronic device according to claim 14, wherein, The first (1-1) component includes a bottom portion disposed on the rear surface of the first vibration device and a lateral portion disposed on and covering the lateral surface of the first vibration device. The lateral portion of the first (1-1) component is connected to one side of the bottom portion of the first (1-1) component and is disposed along the periphery of the bottom portion of the first (1-1) component. The (1-2) component includes a bottom portion disposed on the rear surface of the second vibration device and a lateral portion disposed on the lateral surface of the second vibration device. The lateral portion of the (1-2) component is connected to one side of the bottom portion of the (1-2) component and is disposed along the periphery of the bottom portion of the (1-2) component.

17. The electronic device according to claim 14, wherein, The first rear vibration component includes a first vibrating plate and a first connecting component inserted between the (1-1) component and the first vibrating plate, and The second rear vibration member includes a second vibration plate and a second connecting member inserted between the (1-2) member and the second vibration plate.

18. The electronic device according to claim 14, wherein, The first vibration device is disposed at the first or second part of the (1-1) member, and The first rear vibration member is disposed at the first or second part of the (1-1) member.

19. The electronic device according to claim 14, wherein, The second vibration device is disposed at the first or second part of the (1-2) member, and The second rear vibration member is disposed at the first part of the (1-2) member or the second part of the (1-2) member.

20. The electronic device according to claim 14, wherein, The first distance between the first vibrating device and the first rear vibrating component is the same as or different from the second distance between the second vibrating device and the second rear vibrating component.

21. The electronic device according to claim 14, wherein, The bottom portion of the (1-1)th component covers the rear surface of the first vibration device, and The lateral portion of the (1-1)th component covers the lateral surface of the first vibration device.

22. The electronic device according to claim 14, wherein, The bottom portion of the (1-2)th component covers the rear surface of the second vibration device, and The lateral portion of the (1-2) component covers the lateral surface of the second vibration device.

23. The electronic device according to claim 14, in, The holes in the first cover include a first hole (1-1) located in the first peripheral region and a second hole (1-2) located in the second peripheral region. Wherein, the first vibration device covers the (1-1)th hole, and The second vibration device covers the (1-2)th hole.

24. The electronic device according to claim 23, in, The first vibration device includes a first (1-1) vibration device disposed on the rear surface of the first peripheral region of the first cover, and a second (1-2) vibration device disposed adjacent to the first (1-1) vibration device to cover the first (1-1) hole. The second vibration device includes a (2-1) vibration device disposed on the rear surface of the second peripheral region of the first cover, and a (2-2) vibration device disposed adjacent to the (2-1) vibration device to cover the (1-2) hole.

25. The electronic device according to claim 24, in, Each of the (1-1)th vibration device and the (2-1)th vibration device includes the diaphragm vibration device, and Each of the (1-2) vibration devices and the (2-2) vibration devices includes the coil-type vibration device.

26. The electronic device according to claim 24, wherein, Each of the (1-1)th vibration device and the (2-1)th vibration device includes: The vibrating component includes a piezoelectric material; A first electrode layer is disposed on a first surface of the vibrating portion; and The second electrode layer is disposed on a second surface of the vibrating portion that is different from the first surface of the vibrating portion.

27. The electronic device according to claim 26, wherein, At least one of the (1-1) vibration device and the (2-1) vibration device further includes: A first protective member, wherein the first protective member is disposed above and covers the first electrode layer; and The second protective component is disposed below the second electrode layer and covers the second electrode layer.

28. The electronic device according to claim 27, wherein, At least one of the (1-1) vibration device and the (2-1) vibration device further includes: A first power line is disposed on the rear surface of the first protective member facing the vibrating part and is electrically connected to the first electrode layer. A second power supply line is disposed on the front surface of the second protective member facing the vibrating portion and is electrically connected to the second electrode layer; and The pad portion is electrically connected to the first power line and the second power line.

29. The electronic device according to claim 24, wherein, The (1-1)th vibration device includes a first vibration generator and a first plate disposed on the rear surface of the first peripheral region of the first cover, and The (2-1) vibration device includes a second vibration generator and a second plate disposed on the rear surface of the second peripheral region of the first cover.

30. The electronic device according to claim 29, wherein, The first plate includes a second hole (2-1) that overlaps with the first hole (1-1), and The second plate includes a second hole (2-2) that overlaps with the first hole (1-2).

31. The electronic device according to claim 30, wherein, The first cover includes a (3-1) hole disposed in a first region of the first cover and a (3-2) hole disposed in a second region of the first cover, and The first vibration device is disposed in the first region of the first cover and covers the (3-1) hole, and the second vibration device is disposed in the second region of the first cover and covers the (3-2) hole.

32. The electronic device according to claim 29, wherein, The first plate has a shape that bends toward the first (1-1) hole or has a shape that bends in the opposite direction to the first (1-1) hole, and The second plate has a shape that bends toward the first (1-2) hole or has a shape that bends in the opposite direction to the first (1-2) hole.

33. The electronic device according to claim 29, wherein, The first plate is disposed on the rear surface of the first peripheral region of the first cover. The first vibration generator is disposed on the rear surface of the first plate or on the rear surface of the first peripheral area of ​​the first cover. The first plate is disposed on the rear surface of the first vibration generator.

34. The electronic device according to claim 29, wherein, The second plate is disposed on the rear surface of the second peripheral region of the first cover. The second vibration generator is disposed on the rear surface of the second plate or on the rear surface of the second peripheral region of the first cover. The second plate is disposed on the rear surface of the second vibration generator.

35. The electronic device according to claim 29, wherein, Each of the first vibration generator and the second vibration generator includes: The vibrating part includes a plurality of first parts and a plurality of second parts, the plurality of first parts comprising inorganic materials, and the plurality of second parts disposed between the plurality of first parts and comprising organic materials; A first electrode layer is disposed on a first surface of the vibrating portion; and The second electrode layer is disposed on a second surface of the vibrating portion that is different from the first surface of the vibrating portion.

36. The electronic device according to claim 29, wherein, Each of the first vibration generator and the second vibration generator includes: The vibrating component includes a piezoelectric material; A first electrode layer is disposed on a first surface of the vibrating portion; and The second electrode layer is disposed on a second surface of the vibrating portion that is different from the first surface of the vibrating portion.

37. The electronic device according to claim 34, wherein, The first vibration device includes a second component disposed on the rear surface of the first peripheral region of the first cover, and The second vibration device includes a third component disposed on the rear surface of the second peripheral region of the first cover.

38. The electronic device according to claim 37, wherein, The (1-1)th vibration device and the (1-2)th vibration device are disposed on the rear surface of the second component, and The (2-1) vibration device and the (2-2) vibration device are disposed on the rear surface of the third component.

39. The electronic device according to claim 38, wherein, The second component includes a fourth hole corresponding to the first (1-1) vibration device and a fourth hole corresponding to the first (1-2) vibration device, and The third component includes a (5-1) hole corresponding to the (2-1) vibration device and a (5-2) hole corresponding to the (2-2) vibration device.

40. The electronic device according to claim 39, wherein, The third component also includes a portion disposed between the (5-1) hole and the (5-2) hole, the portion being configured to acoustically separate the space where the (2-1) vibration device is disposed from the space where the (2-2) vibration device is disposed.

41. The electronic device according to claim 39, wherein, The (4-2)th hole corresponds to the (1-1)th hole, and Wherein, the (5-2)th hole corresponds to the (1-2)th hole.

42. The electronic device according to any one of claims 1 to 39, wherein, The vibrating component includes one or more of a display panel containing a plurality of pixels configured to display an image, a light-emitting diode illumination panel, an organic light-emitting illumination panel, and an inorganic light-emitting illumination panel.

43. The electronic device according to any one of claims 1 to 39, wherein, The vibrating component includes one or more materials selected from metal, wood, rubber, plastic, glass, fiber, cloth, paper, and leather.

44. The electronic device according to any one of claims 1 to 39, wherein, The vibrating component includes one or more of the following: a display panel containing a plurality of pixels configured to display an image; a screen panel for projecting an image from a display device; a lighting panel; a sign panel; vehicle interior material; vehicle window; vehicle exterior material; building ceiling material; building interior material; building window; aircraft interior material; aircraft window; and a reflector.

45. The electronic device according to any one of claims 1 to 39, further comprising a display component including a display panel configured to display an image. in, The display component includes a backlight component disposed on the rear surface of the display panel and a guide component located between the display panel and the backlight component.

46. ​​The electronic device according to claim 45, wherein, The display panel is also configured to sense a touch applied to the display member, or the display panel is configured to output sound based on the vibration of the vibrating device, or to generate tactile feedback in response to a touch.

47. The electronic device according to any one of claims 1 to 39, further comprising: The display component includes a display panel configured to display an image; A front component is disposed on the front surface of the display component; as well as A second cover is disposed on the rear surface of the first cover to accommodate the display component, the first cover, the vibration device, and the first component on which the rear vibration component is disposed.

48. The electronic device according to claim 47, wherein, The second cover includes a cover housing configured to provide an enclosed space between the rear portion of the first cover and the rear structure of the second cover.

49. The electronic device according to claim 1, further comprising an air gap disposed between the first cover and the vibration device.

50. A vibration generating device, the vibration generating device comprising: A first component, the first component including a first hole and a second hole; A first vibration device is disposed at the first hole; The second vibration device is installed at the second hole; A second component, connected to the rear surface of the vibrating component, and configured to cover the first component, the first vibration device, and the second vibration device; and The rear vibration component is disposed at the second component. The first vibration device includes a vibration generator containing piezoelectric elements, and The second vibration device includes a coil-type vibration generator.

51. The vibration generating device according to claim 50, wherein, The rear vibration component vibrates based on the vibration of at least one or more of the first vibration device and the second vibration device.

52. The vibration generating device according to claim 50, wherein, The second component includes a receiving portion, and The rear vibration member is disposed in the receiving portion.

53. The vibration generating device according to claim 52, wherein, The receiving portion includes a groove formed on a portion of the front surface of the second member, or the receiving portion includes a groove formed on a portion of the rear surface of the second member.

54. The vibration generating device according to claim 52, wherein, The receiving portion includes a hole that overlaps with the rear vibration member.

55. The vibration generating device according to any one of claims 52 to 54, wherein, The rear vibration component also includes a vibration plate disposed at the receiving portion, and The vibrating plate is configured to vibrate by vibrations of the second component based on at least one or more of the vibrations of the first vibration device and the second vibration device.

56. The vibration generating device according to any one of claims 50 to 54, wherein, The first vibration device outputs a first sound pressure level to the vibrating component through the first hole. The second vibration device outputs a second sound pressure level, different from the first sound pressure level, to the vibrating component through the second hole, and The rear vibration component outputs tactile vibrations based on the vibrations of at least one or more of the first vibration device and the second vibration device.

57. The vibration generating device according to any one of claims 50 to 54, wherein, The first vibration device is disposed between the first component and the second component and covers the first hole. The second vibration device is disposed between the first component and the second component and covers the second hole.

58. The vibration generating device according to claim 50, wherein, The second component includes: The bottom portion covers the rear surface of each of the first component, the first vibration device, and the second vibration device; and A lateral portion, which is connected to the vibrating member and disposed around the periphery of the bottom portion to cover the lateral surfaces of each of the first member, the first vibrating device, and the second vibrating device.

59. The vibration generating device according to claim 58, wherein, The second component also includes a through hole disposed at the bottom portion and overlapping with the first vibration device.

60. The vibration generating device according to claim 50, wherein, The first vibration device also includes a plate covering the first hole, and The vibration generator is disposed between the plate and the second component.

61. The vibration generating device according to claim 60, wherein, The plate has a shape that bends toward the first hole or has a shape that bends in the opposite direction to the first hole.

62. The vibration generating device according to claim 50, wherein, The first vibration device is a diaphragm vibration device.

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