Vibration device and sound device and vehicle device including the same

Abstract

The present disclosure relates to a vibration device and a sound device and a vehicle device including the same. A vibration device can include a vibration means and an adhesive member located at a surface of the vibration means. A modulus of the vibration means can be equal to a modulus of the adhesive member, or can be greater than the modulus of the adhesive member.

Description

Technical Field

[0001] This disclosure relates to a device, and particularly to (e.g., but not limited to) a vibration device, a device including the vibration device, and a vehicle device including the vibration device. Background Technology

[0002] Vibration devices can vibrate to produce sound based on types such as coil type, which includes magnets and coils, or piezoelectric type, which uses piezoelectric devices.

[0003] Due to the fragile nature of piezoelectric devices, piezoelectric vibrating devices may be easily damaged by external impacts, which may result in low reliability of sound reproduction.

[0004] Furthermore, compared to coil-type devices, piezoelectric devices may have lower sound pressure level characteristics and / or sound characteristics in low-pitched vocal cords due to their lower piezoelectric constant.

[0005] The descriptions provided in the Background section should not be assumed to be prior art simply because they are mentioned in or associated with the Background section. The Background section may include information describing one or more aspects of the subject matter. Summary of the Invention

[0006] The inventors have recognized the aforementioned problems and have conducted various experiments to achieve a vibration device with enhanced sound reproduction reliability, and have also conducted various experiments to achieve a vibration device capable of additionally enhancing the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal cords. Through various experiments, the inventors have invented a new vibration device that enhances the reliability of sound reproduction; furthermore, they have invented a new vibration device that enhances the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal cords.

[0007] One or more aspects of this disclosure are intended to provide a vibration device with enhanced sound reproduction reliability, an apparatus including the vibration device, and a vehicle apparatus including the vibration device.

[0008] One or more aspects of this disclosure are intended to provide a vibrating device in which the sound characteristics and / or sound pressure level characteristics in a low-pitched vocal cord can be enhanced, an apparatus including the vibrating device, and a vehicle apparatus including the vibrating device.

[0009] Additional features and aspects of this disclosure will be set forth in part in the description which follows, and will become apparent in part from that description, or may be obtained 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 this disclosure or derived therefrom, as well as the claims and drawings.

[0010] To achieve these and other aspects of this disclosure, as implemented and broadly described herein, a vibration device may include a vibration apparatus and an adhesive member at a surface of the vibration apparatus. The modulus of the vibration apparatus may be equal to or greater than the modulus of the adhesive member.

[0011] In one or more aspects of this disclosure, an apparatus may include a vibrating member and one or more vibration generating devices connected to the vibrating member, the one or more vibration generating devices including the vibrating device. The vibrating device may include a vibrating apparatus and an adhesive member on the surface of the vibrating apparatus. The modulus of the vibrating apparatus may be equal to or greater than the modulus of the adhesive member.

[0012] In one or more aspects of this disclosure, a vehicle device may include an outer material covering a main structure, an inner material covering one or more of the main structure and the outer material, a decorative member covering a portion of the inner material, and one or more sound-generating devices between at least two of the main structure, the outer material, and the inner material, or between the decorative member and the inner member. The one or more sound-generating devices may include a vibration device. The vibration device may include a vibration mechanism and an adhesive member at the rear surface of the vibration mechanism. The modulus of the vibration mechanism may be equal to or greater than the modulus of the adhesive member. One or more of the inner material, the outer material, and the decorative member may output sound based on the vibration of the one or more sound-generating devices.

[0013] According to exemplary embodiments of the present disclosure, a vibration device with enhanced sound reproduction reliability, an apparatus including the vibration device, and a vehicle apparatus including the vibration device can be provided.

[0014] According to exemplary embodiments of this disclosure, a vibration device in which the sound characteristics and / or sound pressure level characteristics in a low-pitched vocal cord can be enhanced, an apparatus including the vibration device, and a vehicle apparatus including the vibration device can be provided.

[0015] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon studying the following figures 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 overview and the following detailed description of this disclosure are illustrative and explanatory, and are intended to provide further explanation of the claimed disclosure.

[0017] Appendix 1. A vibration device, comprising:

[0018] Vibration device; and

[0019] An adhesive component is located on the surface of the vibration device.

[0020] The modulus of the vibration device is equal to or greater than the modulus of the adhesive component.

[0021] Note 2. The vibration device according to Note 1 further includes:

[0022] A reinforcing member, located between the vibration device and the adhesive member; and

[0023] An intermediate bonding member is located between the vibration device and the reinforcing member.

[0024] Note 3. The vibration device according to Note 2, wherein the modulus of the vibration device is greater than the modulus of the reinforcing member and greater than or equal to the modulus of the intermediate bonding member.

[0025] Note 4. The vibration device according to Note 2, wherein the reinforcing member comprises one or more materials selected from plastic, fiber, leather, wood, cloth and paper.

[0026] Note 5. The vibration device according to Note 2, wherein the area of ​​the vibration device is larger than the area of ​​the reinforcing member.

[0027] Appendix 6. The vibration equipment according to Appendix 2, wherein,

[0028] The reinforcing member includes one or more holes, and

[0029] The intermediate adhesive member and the adhesive member are connected to each other in one or more holes.

[0030] Note 7. The vibration device according to Note 2, wherein the reinforcing member is surrounded by the intermediate adhesive member and the adhesive member.

[0031] Note 8. The vibration device according to Note 1 further includes:

[0032] A vibrating plate located on the rear surface of the adhesive member; and

[0033] A support member that is connected to the rear peripheral portion of the vibrating plate.

[0034] Note 9. The vibration device according to Note 8, wherein the support member comprises:

[0035] A first support portion, the first support portion being connected to the rear peripheral portion of the vibrating plate;

[0036] A second support portion, the second support portion being parallel to the first support portion; and

[0037] The third support portion is connected between the first support portion and the second support portion.

[0038] Note 10. The vibration device according to Note 9, wherein the third support portion is perpendicular to both the first support portion and the second support portion, and the first support portion does not overlap with the second support portion.

[0039] Note 11. The vibration device according to Note 8 further includes a housing, the housing comprising an internal space.

[0040] The vibration device, the vibration plate, and the support member are housed within the internal space of the housing.

[0041] The support member is connected to the inner surface of the housing.

[0042] Note 12. The vibration device according to Note 11, wherein the housing comprises:

[0043] A first housing member is configured to be spaced apart from the vibrating plate and face the vibrating plate;

[0044] A second housing member, the second housing member being spaced apart from the vibration device and facing the vibration device; and

[0045] One or more holes, which are disposed at the first housing member and overlap with the vibrating plate.

[0046] Note 13. The vibration device according to Note 12, wherein the support member is connected to one or more of the first housing member and the second housing member.

[0047] Note 14. The vibration device according to Note 12 further includes a connecting member connected between the second housing member and the vibrating plate.

[0048] The supporting member is connected to the first housing member.

[0049] Note 15. The vibration device according to Note 8 further includes a connecting member located between the vibrating plate and the supporting member.

[0050] The connecting member includes a first connecting member and a second connecting member disposed outward from the first connecting member, and

[0051] The first connecting member is configured to have a hardness that is lower than or higher than that of the second connecting member.

[0052] Note 16. The vibration device according to Note 15 further includes one or more pads projecting from the connecting member toward the vibration device.

[0053] Note 17. The vibration device according to Note 8 further includes a connecting member connected to the rear surface of the support member and configured to connect the support member or the vibration device to the vibration member.

[0054] Note 18. The vibration device according to Note 8, wherein the support member comprises:

[0055] A first support portion, the first support portion being connected to the rear peripheral portion of the vibrating plate;

[0056] A second support portion, the second support portion being parallel to the first support portion and disposed below the first support portion; and

[0057] A vibration blocking portion protrudes convexly between the first support portion and the second support portion to surround the side surface of the vibration device.

[0058] Note 19. The vibration device according to Note 18, wherein the vibration blocking portion protrudes upward relative to the front surface of the vibration device opposite to the rear surface.

[0059] Note 20. The vibration device according to Note 1 further includes:

[0060] A vibrating plate, the vibrating plate being located on the rear surface of the adhesive member; and

[0061] A housing that is connected to the vibrating plate and surrounds the vibrating device.

[0062] Note 21. The vibration device according to Note 20 further includes a connecting member connected between the housing and the vibrating plate.

[0063] Note 22. The vibration device according to Note 1 further includes:

[0064] A vibrating plate, located on the rear surface of the adhesive member.

[0065] The vibrating plate includes multiple regions with different rigidities, and

[0066] The vibration device overlaps with one or more of the plurality of regions.

[0067] Note 23. The vibration device according to Note 22, wherein the plurality of regions comprise different materials.

[0068] Note 24. The vibrating device according to Note 22, wherein the plurality of regions comprise different materials among metal, plastic, fiber, leather, wood, cloth and paper.

[0069] Note 25. The vibration device according to Note 22 further includes a housing connected to the vibrating plate and surrounding the vibration device.

[0070] Note 26. The vibration device according to Note 25 further includes a connecting member connected between the housing and the vibrating plate.

[0071] Note 27. The vibration device according to Note 1 further includes a vibrating plate located on the rear surface of the adhesive member.

[0072] The vibrating plate includes:

[0073] A first plate, the first plate comprising a first region and a second region; and

[0074] One or more second plates, said one or more second plates being located at the first region of the first plate, and

[0075] The vibration device overlaps with one or more second plates.

[0076] Note 28. The vibration device according to Note 27, wherein,

[0077] The first plate includes one or more holes located in the first region, and

[0078] The one or more second plates overlap with the first plate to cover the one or more holes.

[0079] Note 29. The vibration device according to Note 1, further comprising a vibrating plate located on the rear surface of the adhesive member.

[0080] The vibrating plate includes:

[0081] A flat portion, the flat portion being connected to the vibrating device; and

[0082] The flexural portion is disposed in the peripheral area of ​​the flat portion.

[0083] Note 30. The vibration device according to Note 1 further includes a vibrating plate located on the rear surface of the adhesive member.

[0084] The vibrating plate includes a first region where the vibration device is disposed and a second region surrounding the first region.

[0085] The second region has a lower rigidity than the first region.

[0086] Note 31. The vibration device according to Note 1 further includes:

[0087] Signal cable, the signal cable being electrically connected to the vibration device; and

[0088] A sound processing circuit is mounted on the signal cable.

[0089] Appendix 32. The vibration device according to Appendix 1, wherein the vibration device comprises:

[0090] A piezoelectric vibration section, the piezoelectric vibration section comprising a plurality of piezoelectric sections and a ductile section connected between the plurality of piezoelectric sections;

[0091] A first electrode portion, the first electrode portion being located at a first surface of the piezoelectric vibration portion; and

[0092] The second electrode portion is located on a second surface of the piezoelectric vibration portion that is different from the first surface.

[0093] Note 33. The vibration device according to Note 32 further includes:

[0094] A signal cable electrically connected to the first electrode portion and the second electrode portion; and

[0095] A sound processing circuit is mounted on the signal cable.

[0096] Note 34. The vibration equipment according to Note 33,

[0097] The vibration device further includes:

[0098] A first cover member, the first cover member covering the first electrode portion; and

[0099] The second cover member covers the second electrode portion, and

[0100] The signal cable includes:

[0101] A first protruding line is disposed between the first cover member and the first electrode portion and is electrically connected to the first electrode portion; and

[0102] The second protruding line is disposed between the second cover member and the second electrode portion and is electrically connected to the second electrode portion.

[0103] Note 35. The vibration equipment according to Note 1,

[0104] The vibration device comprises two or more vibration-generating parts separated from each other on the same plane, and

[0105] Each of the two or more vibration-generating parts includes:

[0106] A piezoelectric vibration section, the piezoelectric vibration section comprising a plurality of piezoelectric sections and a ductile section connected between the plurality of piezoelectric sections;

[0107] A first electrode portion, the first electrode portion being located at a first surface of the piezoelectric vibration portion; and

[0108] The second electrode portion is located on a second surface of the piezoelectric vibration portion that is different from the first surface.

[0109] Note 36. The vibration device according to Note 35, wherein the interval between the two or more vibration generating parts is 0.1 mm or greater and less than 3 cm.

[0110] Note 37. The vibration device according to Note 35, wherein the two or more vibration generating parts are driven as a single unit rather than being driven independently.

[0111] Note 38. The vibration device according to Note 35 further includes:

[0112] One or more signal cables, said one or more signal cables being electrically connected to each of the first electrode portion and the second electrode portion of each of said two or more vibration generating portions; and

[0113] A sound processing circuit, wherein the sound processing circuit is installed at one or more signal cables.

[0114] Note 39. The vibration equipment according to Note 38,

[0115] The vibration device includes:

[0116] A first cover member, located at the first electrode portion of each of the two or more vibration-generating portions; and

[0117] A second cover member is located at the second electrode portion of each of the two or more vibration-generating portions, and

[0118] The one or more signal cables include:

[0119] One or more first protruding lines, said one or more first protruding lines being disposed between and electrically connected to the first electrode portion of each of the first cover member and the first electrode portion of each of the two or more vibration generating portions; and

[0120] One or more second protruding lines are disposed between the second cover member and the second electrode portion of each of the two or more vibration generating portions and are electrically connected to the second electrode portion.

[0121] Note 40. The vibration device according to Note 39, wherein a portion of the one or more signal cables is inserted between the first cover member and the second cover member.

[0122] Appendix 41. A sound device, the sound device comprising:

[0123] Vibrating components; and

[0124] One or more vibration generating devices connected to the vibrating component.

[0125] The one or more vibration generating devices include the vibration devices described in any one of Appendices 1 to 40.

[0126] Appendix 42. The sound device according to Appendix 41, wherein the vibrating member is configured to output sound based on the vibration of the one or more vibration generating devices, and

[0127] The vibrating component includes one or more materials selected from metal, plastic, fiber, leather, wood, cloth, paper, rubber, and glass.

[0128] Note 43. The sound device according to Note 41, wherein the vibrating component comprises any one of the following: a display panel including pixels configured to display images, a screen panel onto which images are projected from a display device, a light-emitting diode illumination panel, a sign panel, vehicle interior material, vehicle exterior material, vehicle window, mirror, building ceiling material, building interior material, building exterior material, building window, aircraft interior material, and aircraft window.

[0129] Note 44. The sound device according to Note 41, wherein the vibrating device is configured to be bent into a shape based on the surface shape of the vibrating member.

[0130] Appendix 45. The sound device according to Appendix 41, wherein the vibrating member includes a display panel, and the one or more vibration generating devices include the vibrating devices according to Appendix 18 or 19, and

[0131] The second support portion is composed of a rear structure disposed on the rear surface of the display panel.

[0132] Appendix 46. A vehicle device comprising:

[0133] External material, which covers the main structure;

[0134] An internal material that covers one or more of the main structure and the external material;

[0135] Decorative component, the decorative component covering a portion of the interior material; and

[0136] One or more sound generating devices, wherein the one or more sound generating devices are located between at least two of the main structure, the external material, and the internal material, or between the decorative component and the internal material.

[0137] Wherein, the one or more sound generating devices include the vibration devices according to any one of Appendices 1 to 40, and

[0138] One or more of the internal material, the external material, and the decorative component are configured to output sound based on the vibration of the one or more sound generating devices.

[0139] Note 47. The vehicle equipment according to Note 46, wherein one or more of the interior materials and the decorative components comprise one or more materials selected from metal, plastic, fiber, leather, wood, cloth, paper, rubber, and glass.

[0140] Note 48. The vehicle equipment according to Note 46, wherein,

[0141] The interior materials include one or more of the following: dashboard, pillar interior materials, roof interior materials, door interior materials, seat interior materials, handle interior materials, floor interior materials, rear fascia interior materials, rearview mirrors, overhead console, glove box, and sun visors.

[0142] The one or more sound generating devices are configured to cause at least one or more of the dashboard, the pillar interior material, the roof interior material, the door interior material, the seat interior material, the handle interior material, the floor interior material, the rear package interior material, the rearview mirror, the overhead console, the glove box, and the sun visor to vibrate.

[0143] Note 49. The vehicle equipment according to Note 46 further includes:

[0144] Glass windows; and

[0145] A transparent sound generating device is disposed at the glass window.

[0146] Note 50. The vehicle equipment according to Note 49, wherein,

[0147] The glass windows include at least one or more of the following: front window, side windows, rear window, and roof window.

[0148] The transparent sound generating device is configured to cause at least one or more of the front window, the side windows, the rear window, and the roof window to vibrate.

[0149] Note 51. The vehicle equipment according to Note 46, wherein,

[0150] The internal material includes a recessed portion formed from the surface of the internal material facing the decorative member, and

[0151] The recessed portion accommodates one or more sound generating devices connected to the decorative member. Attached Figure Description

[0152] 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 aspects and embodiments of this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0153] Figure 1 This is an exploded perspective view showing a vibration device according to an exemplary embodiment of the present disclosure.

[0154] Figure 2 It is along Figure 1 The cross-sectional view shown is taken by line A-A'.

[0155] Figure 3 This is an exploded perspective view showing a vibration device 10-2 according to another exemplary embodiment of the present disclosure.

[0156] Figure 4 It is along Figure 3 The cross-sectional view taken by line B-B' shown in the figure.

[0157] Figure 5 This is an exploded perspective view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0158] Figure 6 It is along Figure 5 The cross-sectional view taken by line C-C' shown in the figure.

[0159] Figure 7 This is an exploded perspective view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0160] Figure 8 It is along Figure 7 The cross-sectional view taken by line D-D' shown in the figure.

[0161] Figure 9 This is an exploded perspective view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0162] Figure 10 It is along Figure 9 The cross-sectional view taken by line E-E' shown in the figure.

[0163] Figure 11 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0164] Figure 12 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0165] Figure 13 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0166] Figure 14 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0167] Figure 15 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0168] Figure 16This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0169] Figure 17 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0170] Figure 18 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0171] Figure 19 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure.

[0172] Figure 20 This is a perspective view showing a vibrating plate according to another exemplary embodiment of the present disclosure.

[0173] Figure 21 It is along Figure 20 The cross-sectional view taken by line F-F' shown in the figure.

[0174] Figure 22A It is along Figure 20 Another cross-sectional view taken by line F-F' shown in the diagram.

[0175] Figure 22B It is along Figure 20 Another cross-sectional view taken by line F-F' shown in the diagram.

[0176] Figure 23 This is a perspective view showing a vibrating plate according to another exemplary embodiment of the present disclosure.

[0177] Figure 24A It is along Figure 23 The cross-sectional view shown is taken by line G-G'.

[0178] Figure 24B It is along Figure 23 Another cross-sectional view taken by line G-G' shown.

[0179] Figure 25 This is a perspective view showing a vibrating plate according to another exemplary embodiment of the present disclosure.

[0180] Figure 26 It is along Figure 25 The cross-sectional view shown is taken by line H-H'.

[0181] Figure 27 This is a perspective view showing a vibrating plate according to another exemplary embodiment of the present disclosure.

[0182] Figure 28 It is along Figure 27 The cross-sectional view shown is taken by line I-I'.

[0183] Figure 29 A vibration device according to an exemplary embodiment of the present disclosure is shown.

[0184] Figure 30 It is along Figure 29 The cross-sectional view taken by line J-J' shown in the figure.

[0185] Figure 31 It is shown Figure 30 The diagram shows a three-dimensional view of the piezoelectric vibration component.

[0186] Figure 32A A piezoelectric portion according to another exemplary embodiment of this disclosure is shown.

[0187] Figure 32B A piezoelectric portion according to another exemplary embodiment of this disclosure is shown.

[0188] Figure 32C A piezoelectric portion according to another exemplary embodiment of this disclosure is shown.

[0189] Figure 32D A piezoelectric portion according to another exemplary embodiment of this disclosure is shown.

[0190] Figure 33 A vibration device according to another exemplary embodiment of the present disclosure is shown.

[0191] Figure 34 It is along Figure 33 The cross-sectional view shown is taken by line K-K'.

[0192] Figure 35 A vibration device according to another exemplary embodiment of the present disclosure is shown.

[0193] Figure 36 A vibration device according to another exemplary embodiment of the present disclosure is shown.

[0194] Figure 37 A vibration device according to another exemplary embodiment of the present disclosure is shown.

[0195] Figure 38 It is along Figure 37 The cross-sectional view taken by line L-L' shown in the figure.

[0196] Figure 39 It is along Figure 37 The side view of the section cut by line M-M' shown.

[0197] Figure 40 A vibration device according to another exemplary embodiment of the present disclosure is shown.

[0198] Figure 41 It is along Figure 40 The cross-sectional view shown is taken from line N-N'.

[0199] Figure 42 A vibration device according to another exemplary embodiment of the present disclosure is shown.

[0200] Figure 43 An apparatus according to an exemplary embodiment of the present disclosure is shown.

[0201] Figure 44 It shows Figure 43 The main cable and the first signal cable to the nth signal cable are shown in the diagram.

[0202] Figure 45 It is shown Figure 43 The waveform diagram of the output signal of the sound data generation circuit component shown is shown.

[0203] Figure 46 A device 100 according to another example embodiment of the present disclosure is shown.

[0204] Figure 47 It is along Figure 46 The cross-sectional view taken by line O-O' shown in the figure.

[0205] Figure 48 It is along Figure 46 Another cross-sectional view taken from line O-O' shown in the diagram.

[0206] Figure 49 It is along Figure 46 Another cross-sectional view taken from line O-O' shown in the diagram.

[0207] Figure 50 It is along Figure 46 Another cross-sectional view taken from line O-O' shown in the diagram.

[0208] Figure 51 It is along Figure 46 Another cross-sectional view taken from line O-O' shown in the diagram.

[0209] Figure 52 An apparatus according to another exemplary embodiment of the present disclosure is shown.

[0210] Figure 53 An apparatus according to another exemplary embodiment of the present disclosure is shown.

[0211] Figure 54 An apparatus according to another exemplary embodiment of the present disclosure is shown.

[0212] Figure 55 An apparatus according to another exemplary embodiment of the present disclosure is shown.

[0213] Figure 56 An apparatus according to another exemplary embodiment of the present disclosure is shown.

[0214] Figure 57 An apparatus according to another exemplary embodiment of the present disclosure is shown.

[0215] Figure 58 A vehicle device according to an exemplary embodiment of the present disclosure is shown.

[0216] Figure 59 This is a cross-sectional view showing a vehicle device according to an exemplary embodiment of the present disclosure.

[0217] Figure 60 The setting is shown Figure 58 and Figure 59 Sound generating devices near the driver's seat and passenger seats.

[0218] Figure 61 The setting is shown Figure 58 and Figure 59 Sound-generating devices located in the car doors and windows.

[0219] Figure 62 The setting is shown Figure 58 and Figure 59 The sound-generating device located in the roof panel of the vehicle.

[0220] Figure 63 The setting is shown Figure 58 and Figure 59 Sound-generating devices in the roof panels, windows, and seats of the vehicle.

[0221] Figure 64 An exemplary embodiment of a modified internal material of a vehicle device according to an exemplary embodiment of the present disclosure is shown.

[0222] Figure 65 Another modified embodiment of the internal materials of a vehicle device according to an exemplary embodiment of the present disclosure is shown.

[0223] Figure 66 It shows Figure 60 and Figure 61 The decorative components and the fourth sound generating device shown.

[0224] Throughout the accompanying drawings and detailed description, unless otherwise described, 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

[0225] Reference will now be made in detail to embodiments of this disclosure, examples of which are illustrated in the accompanying drawings. In the following description, detailed descriptions of well-known functions or configurations relevant to this document may be omitted where such obscuration unnecessarily obscures the essential points of the inventive concept. The described progression of processing steps and / or operations is exemplary; however, the order of steps and / or operations is not limited to the order set forth herein, and may be varied as is known in the art, except for steps and / or operations that must occur in a specific order. The same reference numerals denote the same elements throughout the text. The names of the various elements used in the following description are chosen solely for ease of writing and may therefore differ from those used in actual products.

[0226] The advantages and features of this disclosure and its implementation methods will be illustrated by the following embodiments described with reference to the accompanying drawings. However, this disclosure may be implemented in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided to make this disclosure thorough and complete, and to fully convey the scope of this disclosure to those skilled in the art. Furthermore, this disclosure is defined only by the claims and their equivalents.

[0227] The shapes, dimensions, areas, ratios, angles, quantities, etc., disclosed in the accompanying drawings used to describe embodiments of this disclosure are merely examples, and therefore, this disclosure is not limited to the details shown. The same reference numerals denote the same elements throughout the specification. In the following description, detailed descriptions that determine relevant known functions or configurations may be omitted where such omission would unnecessarily obscure aspects of this disclosure. When terms such as “comprising,” “having,” “including,” “containing,” “constituting,” “forming,” “comprise,” “form,” etc., are used, one or more additional elements may be added unless a term such as “only” is used. Singular terms may include plural forms unless the context clearly indicates otherwise. Any implementation described herein as an “example” is not necessarily to be construed as preferred or advantageous relative to other implementations.

[0228] When interpreting a component, the component is interpreted as including a range of errors or tolerances, even if no explicit description of such a range of errors or tolerances is provided.

[0229] When describing positional relationships, such as when using terms like "above," "over," "below," "above," "below," "down," "near," "close to," or "adjacent to," "beside," or "close to" to describe the positional relationship between two components, one or more other components may be located between the two components unless more restrictive terms such as "immediately," "directly," or "immediately adjacent" are used. For example, when a structure is described as being positioned "above," "over," "below," "above," "below," "down," "near," "beside," or "close to," "adjacent to," or "close to," another structure, the description should be interpreted to include situations where the structures are in contact with each other and where one or more additional structures are placed or inserted between them. Furthermore, the terms "left," "right," "top," "bottom," "down," "upward," "above," "down," etc., refer to any frame of reference.

[0230] When describing temporal relationships, such as when time sequence is described as "after," "following," "next," or "before," discontinuous situations may be included unless more restrictive terms such as "right then," "immediately," or "directly" are used.

[0231] It should be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be a second element, and similarly, a second element may be a first element.

[0232] In describing the elements of this disclosure, the terms “first,” “second,” “A,” “B,” “(a),” “(b),” etc., may be used. These terms are intended to distinguish corresponding elements from other elements, and the basis, order, or number of corresponding elements shall not be limited by these terms.

[0233] Unless otherwise stated, when describing an element or layer as “connected,” “joined,” or “attached” to another element or layer, the element or layer may not only be directly connected, joined, or attached to the other element or layer, but may also be indirectly connected, joined, or attached to the other element or layer, and one or more intermediate elements or layers may be disposed or inserted between the elements or layers.

[0234] Unless otherwise stated, a component or layer may not only directly contact or overlap with another component or layer, but also indirectly contact or overlap with another component or layer, and one or more intermediate components or layers may be disposed or inserted between the components or layers.

[0235] The term "at least one" should be understood to include any and all combinations of one or more related listed items. For example, "at least one of the first, second, and third items" means a combination of two or more items proposed from the first, second, and third items, as well as only one of the first, second, or third items.

[0236] The expressions "first element," "second element," and " / or" "third element" should be understood as one of the first element, the second element, and the third element, or any or all combinations of the first element, the second element, and the third element. For example, A, B, and / or C can refer to only A; only B; only C; any or some combination of A, B, and C; or all of A, B, and C.

[0237] Features of the various embodiments of this disclosure can be partially or completely linked or combined with each other, and can operate, link, or drive each other in various ways. Embodiments of this disclosure can be performed independently of each other, or can be performed together in an interdependent or related relationship.

[0238] In the following, a vibration device, an apparatus including the vibration device, and a vehicle apparatus including the vibration device according to embodiments of the present disclosure are described in detail with reference to the accompanying drawings. When adding reference numerals to elements in each drawing, the same reference numerals may denote the same elements even though the same elements may be shown in other drawings. Furthermore, for ease of description, the scale, size, and thickness of each element shown in the drawings may differ from the actual scale, size, and thickness; therefore, embodiments of the present disclosure are not limited to the scale, size, and thickness shown in the drawings.

[0239] Figure 1 This is an exploded perspective view showing a vibration device according to an exemplary embodiment of the present disclosure. Figure 2 It is along Figure 1 The cross-sectional view shown is taken by line A-A'.

[0240] Reference Figure 1 and Figure 2 The vibration device 10-1 according to an exemplary embodiment of the present disclosure may include a vibration device 11 and an adhesive member 12.

[0241] The vibration device 11 can be configured to vibrate (or displace or drive) autonomously based on an electrical signal (or voice signal) applied thereto, or it can be configured to cause a vibrating member (or vibrating plate or vibrating object) to vibrate (or displace or drive). For example, the vibration device 11 may be referred to as a vibrating structure, vibrator, vibration generating device, vibration generating equipment, vibration generator, sound generator, sound device, sound equipment, sound generating apparatus, sound generating equipment, or sound generator, etc., but the embodiments of this disclosure are not limited thereto.

[0242] The vibration device 11 according to an exemplary embodiment of this disclosure may include a piezoelectric material (or an electroactive material) having piezoelectric properties. The vibration device 11 may be driven by vibration (or displacement or drive) generated by an electrical signal (or voice signal) applied to the piezoelectric material, or it may cause a vibrating member (or vibrating plate or vibrating object) to vibrate (or displace or drive). For example, the vibration device 11 may vibrate (or displace or drive) when contracting and expanding alternately by the piezoelectric effect (or piezoelectric properties). For example, the vibration device 11 may vibrate (or displace or drive) in the vertical direction (or thickness direction) Z when contracting and / or expanding alternately by the inverse piezoelectric effect. The vibration device 11 according to an exemplary embodiment of this disclosure may be a piezoelectric type vibration device. For example, the vibration device 11 according to the exemplary embodiments of the present disclosure may be referred to as a piezoelectric vibration structure, a piezoelectric vibrator, a piezoelectric vibration generating device, a piezoelectric vibration generator, a piezoelectric sound generator, a piezoelectric sound device, a piezoelectric sound generating device, a piezoelectric sound generator, a piezoelectric actuator, a piezoelectric exciter, or a piezoelectric transducer, etc., but the embodiments of the present disclosure are not limited thereto.

[0243] The vibration device 11 according to the exemplary embodiments of this disclosure can be configured to be flexible. For example, the vibration device 11 can be configured to bend in a non-planar shape including a curved surface. Therefore, the vibration device 11 according to the exemplary embodiments of this disclosure can be referred to as a flexible vibration structure, flexible vibrator, flexible vibration generating device, flexible vibration generator, flexible sound generator, flexible sound device, flexible sound generating device, flexible sound generator, flexible actuator, flexible exciter, or flexible transducer, etc., but the embodiments of this disclosure are not limited thereto.

[0244] The vibration device 11 according to an exemplary embodiment of the present disclosure may include a quadrilateral shape having a first length parallel to a first direction X and a second length parallel to a second direction Y intersecting the first direction X. For example, the vibration device 11 may include a square shape with the first length and the second length being the same. However, embodiments of the present disclosure are not limited thereto, and the vibration device 11 may include a rectangular shape, a non-quadrilateral shape, a circular shape, or an oval shape where one of the first length and the second length is greater than the other.

[0245] The adhesive member 12 can be connected to or attached to one of the first surface S1 and the second surface S2 of the vibration device 11, wherein the second surface S2 is different from (or opposite to) the first surface S1. For example, the first surface S1 of the vibration device 11 may be referred to as the top surface, forward surface, front surface, or upper surface of the vibration device 11, but the embodiments of this disclosure are not limited thereto. The second surface S2 of the vibration device 11 may be referred to as the bottom surface, back surface, rear surface, lower surface, or rearward surface of the vibration device 11, but the embodiments of this disclosure are not limited thereto. For example, in the vibration device 11, the first surface S1 may be configured to be closer to the front surface (or top surface, or upper surface, or forward surface) of the vibration device 10-1 than the second surface S2.

[0246] According to an exemplary embodiment of the present disclosure, the adhesive member 12 can be connected to or coupled to the second surface S2 of the vibration device 11. For example, the adhesive member 12 can have the same dimensions as the vibration device 11. For example, the adhesive member 12 can be connected to or coupled to the entire second surface S2 of the vibration device 11, but embodiments of the present disclosure are not limited thereto, and the adhesive member 12 can be connected to or coupled to at least a portion of the second surface S2 of the vibration device 11.

[0247] The adhesive member 12 according to an exemplary embodiment of the present disclosure may include an adhesive layer (or sticky layer) with good adhesion or bonding strength. For example, the adhesive member 12 may include double-sided tape, double-sided foam pad, or adhesive sheet. For example, when the adhesive member 12 includes an adhesive sheet (or adhesive layer), the adhesive member 12 may include only the adhesive layer or sticky layer, without including a base component such as a plastic material.

[0248] The adhesive layer (or viscous layer) of the adhesive member 12 according to the exemplary embodiments of the present disclosure may include epoxy resin, acrylic resin, silicone resin or polyurethane, but the embodiments of the present disclosure are not limited thereto.

[0249] The adhesive layer (or adhesive layer) of the adhesive member 12 according to another exemplary embodiment of the present disclosure may include pressure-sensitive adhesive (PSA), optically transparent adhesive (OCA), or optically transparent resin (OCR), but the embodiments of the present disclosure are not limited thereto.

[0250] According to an exemplary embodiment of the present disclosure, the adhesive member 12 can connect or attach the vibration device 11 to the vibration member. For example, the adhesive member 12 can be disposed between the vibration device 11 and the vibration member. For example, the adhesive member 12 may include a first surface (or top surface) connected or attached to the second surface S2 of the vibration device 11 and a second surface (or rear surface) different from (or opposite to) the first surface.

[0251] The vibration member according to an exemplary embodiment of the present disclosure may include a structure that vibrates based on the vibration of the vibration device 11. The size of the vibration member may be relatively larger than the size of the vibration device 11. The vibration member may have a hardness relatively smaller than the hardness of the vibration device 11. For example, the vibration member may be referred to as a vibrating plate, a vibration object, a vibration target, a sound vibrating plate, or a sound output member, etc., but the embodiments of the present disclosure are not limited thereto. For example, the vibration member may also have a hardness relatively greater than the hardness of the vibration device 11.

[0252] The vibrating member according to an exemplary embodiment of the present disclosure may include one or more planar portions (or flat portions) and curved portions. The vibrating device 11 may be connected or coupled to at least a portion of the curved portion of the vibrating member via an adhesive member 12. Therefore, the vibrating device 11 can be configured to bend in a shape based on the shape (or surface shape) of the vibrating member, thereby enhancing the reliability of sound reproduction and improving the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal cords. For example, the vibrating device 11 may be configured to bend in an isoangular shape (or conformal shape) that conforms to the curvature of the vibrating member. For example, when the vibrating member includes various curved portions, the vibrating device 11 may be configured to bend in various curved shapes corresponding to the various curved portions of the vibrating member. For example, when the vibrating member includes a planar portion and a curved portion protruding from the planar portion, the vibrating device 11 may be configured to bend into a shape including a planar surface and a convex curved surface corresponding to the planar portion and the convex curved portion of the vibrating member.

[0253] According to an exemplary embodiment of this disclosure, the vibrating device 11 may have a modulus (or Young's modulus) greater than or equal to that of the adhesive member 12, such that the vibrating device 11 can be bent into a curved shape. For example, the vibrating device 11 may have the same modulus as the adhesive member 12, or may have a modulus greater than or equal to that of the adhesive member 12. Therefore, in the vibrating device 10-1 according to an exemplary embodiment of this disclosure, the reliability of sound reproduction can be enhanced, and the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal bands can be enhanced. For example, the vibrating device 10-1 according to an exemplary embodiment of this disclosure may have a sound pressure level of 55 dB to 91 dB in the 200 Hz to 20 kHz tonal vocal bands, and may output a sound with a flatness of approximately 35 dB.

[0254] According to an exemplary embodiment of this disclosure, when the vibrating member includes a convex curved surface portion, the vibrating device 11 can have a modulus greater than that of the adhesive member 12. Therefore, the vibrating device 10-1 according to an exemplary embodiment of this disclosure can be bent into a curved surface portion including a convex curved surface portion corresponding to the vibrating member, thus achieving high sound reproduction reliability. Furthermore, in the vibrating device 10-1 according to an exemplary embodiment of this disclosure, the adhesive force between the vibrating device 11 and the vibrating member, which are bonded together by the adhesive member 12, can be enhanced, and the vibration of the vibrating device 11 can be transmitted to the vibrating member through the adhesive member 12. Therefore, the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal cords generated by the vibration of the vibrating member can be enhanced.

[0255] According to an exemplary embodiment of this disclosure, when the modulus of the adhesive member 12 is greater than the modulus of the vibrating device 11, the vibrating device 11 may be difficult to bend into a shape corresponding to the convex curved surface portion of the vibrating member due to the adhesive member 12, and the adhesive properties between the vibrating device 11 and the vibrating member using the adhesive member 12 may be reduced, and as a result, the reliability of the sound reproduction of the vibrating device 10-1 may be reduced, and the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal cords may be reduced.

[0256] The vibration device 10-1 according to an exemplary embodiment of the present disclosure may further include a first auxiliary component (or a first sub-component) 10a and a second auxiliary component (or a second sub-component) 10b.

[0257] The first auxiliary member 10a may be configured to protect the vibration device 11. For example, the first auxiliary member 10a may be disposed on the first surface S1 of the vibration device 11. For example, the first auxiliary member 10a may be configured to cover the entire first surface S1 of the vibration device 11. The first auxiliary member 10a may prevent or minimize damage to the vibration device 11 from external impacts, or may prevent contamination or damage to the vibration device 11 caused by external particles. For example, the first auxiliary member 10a may be referred to as a first release film, a first release sheet, a first release member, a first release membrane, or a first release sheet, etc., but the embodiments of this disclosure are not limited thereto.

[0258] The second auxiliary member 10b can be configured to protect the adhesive member 12. For example, the second auxiliary member 10b can be disposed on the second surface of the adhesive member 12. For example, the second auxiliary member 10b can be configured to cover the entire second surface of the adhesive member 12. The second auxiliary member 10b can prevent or minimize damage to the adhesive member 12 from external impacts, or can prevent contamination or damage to the adhesive member 12 caused by external particles. In addition, the second auxiliary member 10b can prevent the natural curing of the adhesive member 12, and thus can maintain the adhesive properties (or tackiness) of the adhesive member 12. For example, the second auxiliary member 10b can be referred to as a second release film, a second release sheet, a second release member, a second release membrane, or a second release sheet, etc., but the embodiments of this disclosure are not limited thereto.

[0259] According to an exemplary embodiment of this disclosure, when the vibration device 10-1 is disposed (or installed) in the vibration member, the first auxiliary member 10a can be detached from the vibration device 11, and the second auxiliary member 10b can be detached from the adhesive member 12. For example, the second auxiliary member 10b can be detached from the adhesive member 12 immediately before the assembly process of connecting or attaching the vibration device 10-1 to the vibration member, and after the assembly process of the vibration device 10-1 is performed, the first auxiliary member 10a can be detached from the vibration device 11, or it can remain attached to the vibration device 11 without being detached from the vibration device 11.

[0260] In the vibration device 10-1 according to an exemplary embodiment of the present disclosure, the vibration device 11 may have a modulus greater than that of the adhesive member 12. Therefore, the vibration device 11 can be applied to the operation of vibrating a vibrating member that includes a curved portion and has a hardness relatively greater or less than that of the vibration device 11. For example, when the modulus of the vibration device 11 is less than that of the adhesive member 12, the vibration device 11 may be limited in vibrating a vibrating member that includes a curved portion and has a relatively large or small hardness, because of the adhesive characteristics corresponding to the vibrating member that includes a curved portion and has a relatively large or small hardness.

[0261] Therefore, in the vibration device 10-1 according to an exemplary embodiment of the present disclosure, the vibration device 11 can have a modulus greater than that of the adhesive member 12. Thus, the vibration device 11 can easily vibrate vibration members comprising various curved surfaces and whose hardness is relatively greater or less than that of the vibration device 11. Therefore, the reliability of sound reproduction can be enhanced, and the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the vibration member can be enhanced.

[0262] Figure 3 This is an exploded perspective view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 4 It is along Figure 3 The cross-sectional view taken by line B-B' shown in the figure.

[0263] Reference Figure 3 and Figure 4 According to another exemplary embodiment of the present disclosure, the vibration device 10-2 may include a vibration device 11, a reinforcing member 13, an intermediate adhesive member 14, and an adhesive member 12.

[0264] Vibration device 11 can be connected with Figure 1 and Figure 2 The vibration devices 11 shown are essentially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them can be omitted.

[0265] The reinforcing member 13 can be disposed below the vibration device 11. For example, the reinforcing member 13 can be disposed on the second surface S2 of the vibration device 11. For example, the reinforcing member 13 can be connected or attached to the second surface S2 of the vibration device 11 by means of an intermediate adhesive member 14.

[0266] The reinforcing member 13 according to an exemplary embodiment of this disclosure may have a size larger than that of the vibration device 11, or may have an area larger than that of the vibration device 11. For example, the size of the reinforcing member 13 may be larger than the size of each of the vibration device 11 and the intermediate adhesive member 14. The central portion of the vibration device 11 may be disposed at or aligned with the central portion of the reinforcing member 13.

[0267] An intermediate adhesive member 14 (or a second adhesive member or an intermediate adhesive member) may be disposed between the vibrating device 11 and the reinforcing member 13. The first surface (or top surface or upper surface) of the intermediate adhesive member 14 may be connected to or coupled to the second surface S2 of the vibrating device 11. The second surface (or rear surface) of the intermediate adhesive member 14 may be connected to or coupled to the first surface (or top surface or upper surface) 13a of the reinforcing member 13. The intermediate adhesive member 14 may have the same dimensions as the vibrating device 11. For example, the intermediate adhesive member 14 may include components similar to those of the vibrating device 11. Figure 1 and Figure 2 The adhesive member 12 shown is made of the same material or construction as the adhesive member 12 shown, therefore, for the sake of brevity, its repeated description can be omitted.

[0268] The adhesive member (or first adhesive member) 12 may be connected to or coupled to a second surface (or rear surface) 13b of the reinforcing member 13 that is different from (or opposite to) the first surface (or top surface or upper surface) 13a. For example, the adhesive member 12 may have the same dimensions as the reinforcing member 13. For example, the adhesive member 12 may be connected to or coupled to the entire second surface 13b of the reinforcing member 13, but embodiments of this disclosure are not limited thereto, and the adhesive member 12 may be connected to or coupled to at least a portion of the second surface 13b of the reinforcing member 13. In addition to the adhesive member 12 being connected to or coupled to the second surface 13b of the reinforcing member 13 rather than the vibration device 11, the adhesive member 12 may be coupled to... Figure 1 and Figure 2 The adhesive components 12 shown are substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0269] According to an exemplary embodiment of this disclosure, the vibration device 11 may have a modulus greater than that of each of the adhesive member 12, the intermediate adhesive member 14, and the reinforcing member 13, or may have a modulus equal to that of each of the adhesive member 12 and the intermediate adhesive member 14 and greater than that of the reinforcing member 13, such that the vibration device 11 is bent into a curved shape and the vibration of the vibration device 11 is transmitted to the vibrating member. For example, the vibration device 11 may have a modulus greater than that of the reinforcing member 13 and greater than or equal to that of each of the adhesive member 12 and the intermediate adhesive member 14.

[0270] According to exemplary embodiments of this disclosure, the reinforcing member 13 may comprise a material (e.g., a non-metallic material or a composite non-metallic material) having material properties suitable for allowing the vibrating device 11 to bend into a curved shape and for transmitting the vibration of the vibrating device 11 to the vibrating member. For example, in the case of a non-metallic or composite non-metallic material, the reinforcing member 13 may comprise a material with a hardness greater than or equal to the hardness of the vibrating member. For example, the non-metallic or composite non-metallic material may comprise one or more of plastics, fibers, leather, wood, cloth, and paper, but embodiments of this disclosure are not limited thereto.

[0271] Therefore, when the vibrating member includes a convex curved surface portion, the vibrating device 11 can have a modulus greater than that of the reinforcing member 13 and greater than or equal to the modulus of each of the adhesive member 12 and the intermediate adhesive member 14. Thus, the vibrating device 10-2 according to another exemplary embodiment of this disclosure can be bent to include a curved surface portion corresponding to the convex curved surface portion of the vibrating member, thereby achieving high sound reproduction reliability. Furthermore, in the vibrating device 10-2 according to another exemplary embodiment of this disclosure, the adhesive properties between the vibrating device 11 and the vibrating member, which are bonded together by the intermediate adhesive member 14, the reinforcing member 13, and the adhesive member 12, can be enhanced, and the vibration of the vibrating device 11 can be transmitted to the vibrating member through the intermediate adhesive member 14, the reinforcing member 13, and the adhesive member 12. Therefore, the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal cords generated by the vibration of the vibrating member can be enhanced. For example, the vibration device 10-2 according to another exemplary embodiment of the present disclosure can have a sound pressure level of 53dB to 86dB in the vocal band of 200Hz to 20kHz, and can output a sound with a flatness of about 33dB.

[0272] According to an exemplary embodiment of this disclosure, when the modulus of at least one of the intermediate adhesive member 14, the reinforcing member 13, and the adhesive member 12 is greater than the modulus of the vibrating device 11, the vibrating device 11 may be difficult to bend into a shape corresponding to the convex curved surface portion of the vibrating member, and the adhesive properties between the vibrating device 11 and the vibrating member, which are bonded together by the intermediate adhesive member 14, the reinforcing member 13, and the adhesive member 12, may be reduced. As a result, the reliability of the sound reproduction of the vibrating device 10-2 may be reduced, and the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal cords may be reduced.

[0273] The vibration device 10-2 according to another exemplary embodiment of the present disclosure may further include a first auxiliary member 10a and a second auxiliary member 10b.

[0274] The first auxiliary member 10a may be disposed on the first surface S1 of the vibration device 11. For example, the first auxiliary member 10a may be configured to cover the entire first surface S1 of the vibration device 11. The first auxiliary member 10a may be coupled with... Figure 1 and Figure 2 The first auxiliary component 10a shown is substantially the same, therefore the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them can be omitted.

[0275] The second auxiliary member 10b may be disposed on the second surface of the adhesive member 12. For example, the second auxiliary member 10b may be configured to cover the entire second surface of the adhesive member 12. The second auxiliary member 10b may be coupled with... Figure 1 and Figure 2The second auxiliary component 10b shown is substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them can be omitted.

[0276] As described above, in another exemplary embodiment of the vibration device 10-2 according to this disclosure, the vibration device 11 may have a modulus greater than that of the reinforcing member 13 and greater than or equal to the modulus of the adhesive member 12 and the intermediate adhesive member 14. Therefore, as Figure 1 and Figure 2 As shown, the vibration device 11 can easily vibrate a vibrating member that includes various curved surfaces and has a stiffness that is relatively greater or less than the stiffness of the vibration device 11. Therefore, the reliability of sound reproduction can be enhanced, and the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the vibrating member can be enhanced.

[0277] Figure 5 This is an exploded perspective view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 6 It is along Figure 5 The cross-sectional view taken by line C-C' shown in the figure. Figure 5 and Figure 6 It shows how to modify Figure 3 and Figure 4 The reinforcing member in the vibration device 10-2 shown embodies an exemplary embodiment of the vibration device. Therefore, in the following description, elements other than the reinforcing member and related elements are indicated by the same reference numerals, and for the sake of brevity, repeated descriptions of them may be omitted, or their repeated descriptions will be given briefly.

[0278] Reference Figure 5 and Figure 6 According to another exemplary embodiment of the present disclosure, the vibration device 10-3 may include a vibration device 11, a reinforcing member 13, an intermediate adhesive member 14, and an adhesive member 12.

[0279] Vibration device 11 can be connected with Figure 3 and Figure 4 The vibration devices 11 shown are essentially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them can be omitted.

[0280] The reinforcing member 13 can be disposed below the rear peripheral portion of the vibration device 11. For example, the reinforcing member 13 can be disposed at the peripheral portion of the second surface S2 of the vibration device 11. For example, the reinforcing member 13 can be connected or attached to the peripheral portion of the second surface S2 of the vibration device 11 by means of an intermediate adhesive member 14. For example, the area of ​​the reinforcing member 13 can be smaller than the area of ​​the vibration device 11.

[0281] The reinforcing member 13 according to an exemplary embodiment of the present disclosure may include a hole 13h. The hole 13h may overlap with a portion of the vibrating device 11 other than its peripheral portion. The hole 13h may be configured to pass through the reinforcing member 13 in the thickness direction Z. The central portion of the hole 13h may be located at or aligned with the central portion of the vibrating device 11. The hole 13h may have a shape corresponding to the shape of the vibrating device 11. For example, the hole 13h may include a square band or a square ring shape, but embodiments of the present disclosure are not limited thereto. For example, the area occupied by the hole 13h of the reinforcing member 13 may be greater than or equal to the area of ​​the reinforcing member 13 other than the hole 13h. For example, the area occupied by the hole 13h of the reinforcing member 13 may be one or more times the area of ​​the reinforcing member 13 other than the hole 13h, but embodiments of the present disclosure are not limited thereto. For example, the hole 13h may be referred to as an opening, a hollow portion, or a through portion, but embodiments of the present disclosure are not limited thereto.

[0282] exist Figure 5 and Figure 6 In the illustration, the reinforcing member 13 is shown to include one hole 13h, but embodiments of the present disclosure are not limited thereto, and the reinforcing member 13 may include multiple holes 13h. The multiple holes 13h may have circular, oval, or polygonal shapes, but embodiments of the present disclosure are not limited thereto. Therefore, the reinforcing member 13 according to an exemplary embodiment of the present disclosure may include one or more holes 13h. For example, one or more holes 13h may have circular, oval, or polygonal shapes, but embodiments of the present disclosure are not limited thereto. The area occupied by one or more holes 13h in the reinforcing member 13 may be one or more times the area of ​​the reinforcing member 13 other than the area of ​​the one or more holes 13h, but embodiments of the present disclosure are not limited thereto.

[0283] According to an exemplary embodiment of this disclosure, the reinforcing member 13 can be disposed at the peripheral portion or edge portion of the vibrating device 11, thus allowing the flatness of the sound pressure level in the reproduction frequency band of the sound generated by the vibration of the vibrating device 11 to be constant. For example, the flatness of the sound pressure level can represent the deviation between the highest sound pressure level (or peak sound pressure level) and the lowest sound pressure level (or valley sound pressure level) in the sound reproduction frequency band. For example, the reinforcing member 13 can be used as a mass member disposed at the peripheral portion of the vibrating device 11, thereby increasing the sound pressure level of the low-pitched and mid-pitched sound bands generated by the vibration of the vibrating device 11, thereby enhancing the flatness of the sound pressure level in the sound reproduction frequency band. For example, the reinforcing member 13 can be disposed at the peripheral portion of the vibrating device 11 and can enhance the sound characteristics and / or sound pressure level characteristics in the high-pitched sound bands. Therefore, the reinforcing member 13 can be applied to devices that require high-pitched sound.

[0284] An intermediate adhesive member 14 (or a second adhesive member or an intermediate adhesive member) may be connected to or coupled to the vibration device 11 and the reinforcing member 13. For example, the intermediate adhesive member 14 may be disposed between the vibration device 11 and the reinforcing member 13. The first surface (or top surface or upper surface) of the intermediate adhesive member 14 may be connected to or coupled to the second surface S2 of the vibration device 11. The second surface (or rear surface or lower surface) of the intermediate adhesive member 14 may be connected to or coupled to the first surface (or top surface or upper surface) 13a of the reinforcing member 13. The intermediate adhesive member 14 may have the same dimensions as the vibration device 11. The intermediate adhesive member 14 according to an exemplary embodiment of this disclosure may include... Figure 1 and Figure 2 The adhesive member 12 shown is made of substantially the same material or construction as the adhesive member 12 shown, therefore, for the sake of brevity, its repeated description can be omitted.

[0285] An intermediate adhesive member 14 according to an exemplary embodiment of the present disclosure can be inserted into or accommodated in one or more holes 13h disposed in the reinforcing member 13. For example, the intermediate adhesive member 14 can fill at least a portion of one or more holes 13h disposed in the reinforcing member 13. For example, the intermediate adhesive member 14 can fill all of one or more holes 13h disposed in the reinforcing member 13. For example, the intermediate adhesive member 14 can be configured to surround a portion of the reinforcing member 13 other than the second surface 13b and the outer surface.

[0286] According to an exemplary embodiment of this disclosure, the reinforcing member 13 and the intermediate adhesive member 14 can be implemented as a single unit (or integrated structure). According to an exemplary embodiment of this disclosure, the reinforcing member 13 can be inserted (or embedded) into the peripheral portion of the intermediate adhesive member 14 and can be configured integrally with the intermediate adhesive member 14. According to another exemplary embodiment of this disclosure, the intermediate adhesive member 14 can surround a portion of the reinforcing member 13 other than the second surface 13b and the outer surface; therefore, the intermediate adhesive member 14 can be configured integrally with the reinforcing member 13. The integrated reinforcing member 13 and the intermediate adhesive member 14 can be implemented as a single element constituting the vibration device 10-3, thus facilitating the manufacturing process performed on the vibration device 10-3.

[0287] The adhesive member (or first adhesive member) 12 may be connected to or coupled to the reinforcing member 13. For example, the adhesive member 12 may be connected to or coupled to the second surface (or rear surface) 13b of the reinforcing member 13. For example, the adhesive member 12 may have the same dimensions as the vibration device 11. For example, the adhesive member 12 may be connected to or coupled to the second surface 13b of the reinforcing member 13 and the intermediate adhesive member 14. Except for the adhesive member 12 being connected to or coupled to the second surface 13b of the reinforcing member 13 instead of the vibration device 11, the adhesive member 12 may be coupled to... Figure 1 and Figure 2 The adhesive components 12 shown are substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0288] According to an exemplary embodiment of the present disclosure, the adhesive member 12 can be inserted into or accommodated in one or more holes 13h disposed in the reinforcing member 13. For example, the adhesive member 12 can fill at least a portion of one or more holes 13h disposed in the reinforcing member 13. For example, the adhesive member 12 can fill all of one or more holes 13h disposed in the reinforcing member 13. The adhesive member 12 can be connected or coupled to an intermediate adhesive member 14 disposed in one or more holes 13h disposed in the reinforcing member 13. For example, the adhesive member 12 and the intermediate adhesive member 14 can be connected or coupled to each other in one or more holes 13h disposed in the reinforcing member 13.

[0289] According to an exemplary embodiment of this disclosure, the reinforcing member 13 may be integrally (or integrated) with the adhesive member 12 instead of the intermediate adhesive member 14. According to an exemplary embodiment of this disclosure, the reinforcing member 13 may be disposed at the peripheral portion of the adhesive member 12 and may be integrated with the adhesive member 12. According to another exemplary embodiment of this disclosure, the adhesive member 12 may surround the portion of the reinforcing member 13 excluding the first surface 13a and the outer surface; therefore, the adhesive member 12 may be integrated with the reinforcing member 13. The integrated reinforcing member 13 and adhesive member 12 may be implemented as a single element constituting the vibration device 10-3, thus facilitating the manufacturing process performed on the vibration device 10-3.

[0290] According to an exemplary embodiment of this disclosure, the intermediate adhesive member 14, the reinforcing member 13, and the adhesive member 12 can be implemented as a single unit (or integrated structure). For example, the reinforcing member 13 can be inserted (or embedded) between the adhesive member 12 and the intermediate adhesive member 14. For example, the adhesive member 12 and the intermediate adhesive member 14 can be connected or joined to each other to surround the portion of the reinforcing member 13 except for its outer surface. The integrated intermediate adhesive member 14, the reinforcing member 13, and the adhesive member 12 can be implemented as a single element constituting the vibration device 10-3, thus making the manufacturing process performed on the vibration device 10-3 easier.

[0291] The vibration device 10-3 according to another exemplary embodiment of the present disclosure may further include a first auxiliary member 10a and a second auxiliary member 10b.

[0292] The first auxiliary member 10a may be disposed at the vibration device 11. For example, the first auxiliary member 10a may be disposed at the first surface S1 of the vibration device 11. For example, the first auxiliary member 10a may be configured to cover the entire first surface S1 of the vibration device 11. The first auxiliary member 10a may be coupled with... Figure 1 and Figure 2 The first auxiliary component 10a shown is substantially the same, therefore the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them can be omitted.

[0293] The second auxiliary member 10b may be disposed at the adhesive member 12. For example, the second auxiliary member 10b may be disposed on the second surface of the adhesive member 12. For example, the second auxiliary member 10b may be configured to cover the entire second surface of the adhesive member 12. The second auxiliary member 10b may be coupled with... Figure 1 and Figure 2 The second auxiliary component 10b shown is substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them can be omitted.

[0294] As mentioned above, similar to the reference above. Figure 3 and Figure 4 The described vibration device 10-2, in another exemplary embodiment of the vibration device 10-3 according to this disclosure, can enhance the reliability of sound reproduction, can enhance the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal bands generated by the vibration of the vibrating member, the flatness of the sound pressure level in the sound reproduction band can be constant or enhanced, and the manufacturing process can be easier based on the integrated structure of the components. For example, the vibration device 10-3 according to another exemplary embodiment of the present disclosure can have a sound pressure level of 53dB to 86dB in the 200Hz to 20kHz tonal vocal bands and can output a sound with a flatness of approximately 33dB.

[0295] Figure 7 This is an exploded perspective view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 8 It is along Figure 7 The cross-sectional view taken by line D-D' shown in the figure. Figure 7 and Figure 8 It shows how to modify Figure 5 and Figure 6 The reinforcing member in the vibration device 10-3 shown embodies an exemplary embodiment of the vibration device. Therefore, in the following description, other elements besides the reinforcing member and related elements are indicated by the same reference numerals, and for the sake of brevity, repeated descriptions of them may be omitted, or their repeated descriptions will be given briefly.

[0296] Reference Figure 7 and Figure 8 In another exemplary embodiment of the vibration device 10-4 according to this disclosure, the reinforcing member 13 may be disposed below the central portion (or center portion) of the vibration device 11. For example, the reinforcing member 13 may be disposed at the central portion of the second surface S2 of the vibration device 11. For example, the reinforcing member 13 may be connected or coupled to the central portion of the second surface S2 of the vibration device 11, excluding the peripheral portion (or edge portion), by means of an intermediate adhesive member 14. For example, the reinforcing member 13 may have an area or size smaller than that of the vibration device 11.

[0297] According to an exemplary embodiment of this disclosure, the reinforcing member 13 can be disposed at the central portion of the vibrating device 11. Therefore, the flatness of the sound pressure level in the reproduction frequency band of the sound generated by the vibration of the vibrating device 11 can be constant. For example, the reinforcing member 13 can be used as a mass member disposed at the central portion of the vibrating device 11, thereby increasing the sound pressure level of the low-pitched and mid-pitched sound bands generated by the vibration of the vibrating device 11, thereby enhancing the flatness of the sound pressure level in the reproduction frequency band. For example, the reinforcing member 13 can be disposed at the central or central portion of the vibrating device 11, thereby enhancing the sound characteristics and / or sound pressure level characteristics in the low-pitched sound band.

[0298] An intermediate adhesive member 14 (or a second adhesive member) may be connected to or coupled to the vibration device 11 and the reinforcing member 13. For example, the intermediate adhesive member 14 may be disposed between the vibration device 11 and the reinforcing member 13. The first surface (or top surface or upper surface) of the intermediate adhesive member 14 may be connected to or coupled to the second surface S2 of the vibration device 11. The second surface (or rear surface) of the intermediate adhesive member 14 may be connected to or coupled to the first surface (or top surface or upper surface) 13a and the side surface 13c of the reinforcing member 13. The intermediate adhesive member 14 may have the same dimensions as the vibration device 11. The intermediate adhesive member 14 may be configured to surround the first surface 13a and the side surface 13c of the reinforcing member 13, excluding the second surface 13b. For example, the intermediate adhesive member 14 may include... Figure 1 and Figure 2 The adhesive member 12 shown is made of the same material or construction as the adhesive member 12 shown, therefore, for the sake of brevity, its repeated description can be omitted.

[0299] According to an exemplary embodiment of this disclosure, the reinforcing member 13 and the intermediate adhesive member 14 can be implemented as a single unit (or integrated structure). According to an exemplary embodiment of this disclosure, the reinforcing member 13 can be inserted (or embedded) into the central portion of the intermediate adhesive member 14 and can be integrally formed with the intermediate adhesive member 14. According to another exemplary embodiment of this disclosure, the intermediate adhesive member 14 can surround the first surface 13a and side surfaces 13c of the reinforcing member 13, excluding the second surface 13b; therefore, the intermediate adhesive member 14 can be integrally formed with the reinforcing member 13. The integrated reinforcing member 13 and intermediate adhesive member 14 can be implemented as a single element constituting the vibration device 10-4, thus facilitating the manufacturing process performed on the vibration device 10-4.

[0300] The adhesive member (or first adhesive member) 12 may be connected to or coupled to the reinforcing member 13. For example, the adhesive member 12 may be connected to or coupled to the second surface (or rear surface) 13b of the reinforcing member 13. For example, the adhesive member 12 may have the same dimensions as the vibration device 11. For example, the adhesive member 12 may be connected to or coupled to the second surface 13b of the reinforcing member 13 and the intermediate adhesive member 14. Except for the adhesive member 12 being connected to or coupled to the second surface 13b of the reinforcing member 13 instead of the vibration device 11, the adhesive member 12 may be coupled to... Figure 1 and Figure 2 The adhesive components 12 shown are substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0301] According to an exemplary embodiment of the present disclosure, the adhesive member 12 may surround at least a portion of the side surface 13c of the reinforcing member 13. For example, the adhesive member 12 may surround the entire side surface 13c of the reinforcing member 13. The adhesive member 12 may be connected or coupled to an intermediate adhesive member 14 at a peripheral portion of the vibration device 11. For example, the adhesive member 12 and the intermediate adhesive member 14 may be connected or coupled to each other at a peripheral portion of the vibration device 11. For example, one or more of the adhesive member 12 and the intermediate adhesive member 14 may surround at least a portion of the side surface 13c of the reinforcing member 13.

[0302] According to an exemplary embodiment of this disclosure, the reinforcing member 13 may be integrally (or integrated) with the adhesive member 12 instead of the intermediate adhesive member 14. According to an exemplary embodiment of this disclosure, the reinforcing member 13 may be disposed at the central portion of the adhesive member 12 and may be integrated with the adhesive member 12. According to another exemplary embodiment of this disclosure, the adhesive member 12 may surround the side surface 13c and the second surface 13b of the reinforcing member 13, excluding the first surface 13a; therefore, the adhesive member 12 may be integrated with the reinforcing member 13. The integrated reinforcing member 13 and adhesive member 12 may be implemented as a single element constituting the vibration device 10-4, thus facilitating the manufacturing process performed on the vibration device 10-4.

[0303] According to an exemplary embodiment of this disclosure, the intermediate adhesive member 14, the reinforcing member 13, and the adhesive member 12 can be implemented as a single unit (or integrated structure). For example, the reinforcing member 13 can be inserted (or embedded) between the adhesive member 12 and the intermediate adhesive member 14. For example, the adhesive member 12 and the intermediate adhesive member 14 can be connected or joined to each other to completely surround the reinforcing member 13, such that the reinforcing member 13 is located between the adhesive member 12 and the intermediate adhesive member 14. The integrated intermediate adhesive member 14, the reinforcing member 13, and the adhesive member 12 can be implemented as a single element constituting the vibration device 10-4, thus making the manufacturing process performed on the vibration device 10-4 easier.

[0304] The vibration device 10-4 according to another exemplary embodiment of the present disclosure may further include a first auxiliary member 10a and a second auxiliary member 10b.

[0305] The first auxiliary member 10a may be disposed at the vibration device 11. For example, the first auxiliary member 10a may be disposed at the first surface S1 of the vibration device 11. For example, the first auxiliary member 10a may be configured to cover the entire first surface S1 of the vibration device 11. The first auxiliary member 10a may be coupled with... Figure 1 and Figure 2 The first auxiliary component 10a shown is substantially the same, therefore the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them can be omitted.

[0306] The second auxiliary member 10b may be disposed at the adhesive member 12. For example, the second auxiliary member 10b may be disposed on the second surface of the adhesive member 12. For example, the second auxiliary member 10b may be configured to cover the entire second surface of the adhesive member 12. The second auxiliary member 10b may be coupled with... Figure 1 and Figure 2 The second auxiliary component 10b shown is substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them can be omitted.

[0307] As mentioned above, similar to the reference above. Figure 5 and Figure 6 The described vibration device 10-3, in another exemplary embodiment of the vibration device 10-4 according to this disclosure, can enhance the reliability of sound reproduction, enhance the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal bands generated by the vibration of the vibrating member, maintain or enhance the flatness of the sound pressure level in the sound reproduction band, and facilitate manufacturing processes based on the integrated structure of the components. For example, the vibration device 10-4 according to another exemplary embodiment of the present disclosure can have a sound pressure level of 53 dB to 86 dB in the 200 Hz to 20 kHz tonal vocal bands and can output a sound with a flatness of approximately 33 dB.

[0308] Figure 9 This is an exploded perspective view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 10 It is along Figure 9 The cross-sectional view shown is taken by line E-E'. Figure 9 and Figure 10 The vibrating plate and support components are shown being added to the reference above. Figure 1 and Figure 2 An exemplary embodiment of the described vibration device 10-1.

[0309] Reference Figure 9 and Figure 10 According to another exemplary embodiment of the present disclosure, the vibration device 10-5 may include a vibration device 11, an adhesive member 12, a vibration plate 15, and a support member 17.

[0310] Vibration device 11 can be connected with Figure 1 and Figure 2 The vibration devices 11 shown are essentially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them can be omitted.

[0311] The adhesive member 12 can be connected to or coupled to either the first surface S1 of the vibration device 11 or the second surface S2, which is different from (or opposite to) the first surface S1. Figure 1 and Figure 2 The adhesive components 12 shown are substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0312] The vibrating plate 15 can be connected to or coupled to the vibration device 11. For example, the vibrating plate 15 can be disposed on the second surface (or rear surface) S2 of the vibration device 11. For example, the vibrating plate 15 can be connected to or coupled to the second surface S2 of the vibration device 11 by means of an adhesive member 12. For example, the first surface of the vibrating plate 15 can be connected to or coupled to the second surface S2 of the vibration device 11 by means of an adhesive member 12.

[0313] The vibrating plate 15 according to an exemplary embodiment of the present disclosure may include a plate structure with a thickness of 0.1 mm to 2 mm, but the embodiments of the present disclosure are not limited thereto. For example, the plate structure may have a thickness of less than 0.1 mm or greater than 2 mm. For example, the vibrating plate 15 may have a square shape, but the embodiments of the present disclosure are not limited thereto, and the vibrating plate 15 may have a non-square shape, a circular shape, an oval shape, or a polygonal shape. The vibrating plate 15 may have a size larger than the size of the vibrating device 11, or may have an area wider than the area of ​​the vibrating device 11. For example, the central portion of the vibrating device 11 may overlap with the central portion of the vibrating plate 15. For example, the central portion of the vibrating device 11 may be disposed at or aligned with the central portion of the vibrating plate 15. However, the embodiments of the present disclosure are not limited thereto. For example, the central portion of the vibrating device 11 may not be aligned with the central portion of the vibrating plate 15.

[0314] The diaphragm 15 according to an exemplary embodiment of this disclosure can vibrate based on the vibration of the vibrating device 11. For example, the diaphragm 15 can vibrate based on the vibration of the vibrating device 11 to generate or output sound (or vibrating sound). The diaphragm 15 may have material properties suitable for outputting the sound required by the vibrating device 11 or the vibrating equipment 10-5, including acoustic characteristics and / or sound pressure level characteristics. The diaphragm 15 according to an exemplary embodiment of this disclosure may include metallic or non-metallic materials (or composite non-metallic materials). For example, the metallic material of the diaphragm 15 may include any one or more of stainless steel, aluminum (Al), aluminum alloy, magnesium (Mg), magnesium alloy, and magnesium-lithium (Mg-Li) alloy, but embodiments of this disclosure are not limited thereto. The non-metallic material (or composite non-metallic material) of the diaphragm 15 may include one or more of plastic, fiber, leather, wood, cloth, and paper, but embodiments of this disclosure are not limited thereto. For example, the diaphragm 15 comprising plastic or metallic materials can output sound with a sound pressure level of 60 dB or higher in the 21 Hz to 21 kHz sound frequency band based on vibration. For example, a diaphragm 15 comprising paper material can output sound with a sound pressure level of 60 dB or higher in the 210 Hz to 21 kHz sound band based on vibration output. For example, the material of the diaphragm 15 can be replaced with a material optimized for the desired sound characteristics of the vibration device 10-5. Therefore, the vibration device 10-5 according to another exemplary embodiment of this disclosure can output sound in the desired sound band simply by replacing or changing the material of the diaphragm 15.

[0315] The support member 17 can be connected to or coupled to the vibrating plate 15. For example, the support member 17 can be connected to or coupled to a peripheral portion of a second surface of the vibrating plate 15, the second surface being different from (or opposite to) the first surface. For example, the support member 17 can be connected to or coupled to the vibrating member and can support the vibrating plate 15 connected to the vibration device 11. For example, the support member 17 can be disposed between the vibrating plate 15 and the vibrating member, thus the vibrating plate 15 can be spaced apart from the vibrating member. For example, the vibrating plate 15 can be spaced apart from the vibrating member by the support member 17, and therefore can not directly contact the vibrating member, thereby preventing or minimizing the reduction in sound characteristics and / or sound pressure level characteristics caused by contact between the vibrating plate 15 and the vibrating member. For example, the support member 17 can be referred to as a clamp, support clamp, fixing member, fixing fixture, fixing bracket, or fixing frame, but the embodiments of this disclosure are not limited thereto.

[0316] The support member 17 according to an exemplary embodiment of the present disclosure may include a hole 17h. For example, the support member 17 according to an exemplary embodiment of the present disclosure may include a square band shape or a square ring shape containing the hole 17h, but the embodiments of the present disclosure are not limited thereto, and the support member 17 may have a shape corresponding to the shape of the vibrating plate 15. For example, the support member 17 may include a material that does not affect the vibration of the vibrating plate 15 and can stably support the vibrating plate 15. For example, the support member 17 may include one or more materials selected from metallic materials and non-metallic materials (or composite non-metallic materials), but the embodiments of the present disclosure are not limited thereto. For example, the material of the support member 17 may include one or more materials selected from metal, plastic, and wood, but the embodiments of the present disclosure are not limited thereto.

[0317] The vibration device 10-5 according to another exemplary embodiment of the present disclosure may further include a connecting member 16. For example, the vibration device 10-5 may further include a connecting member 16 disposed between the vibrating plate 15 and the support member 17.

[0318] The connecting member 16 may be disposed between the peripheral portion of the second surface of the vibrating plate 15 and the supporting member 17. For example, the supporting member 17 may be connected to or coupled to the vibrating plate 15 via the connecting member 16. For example, the first surface of the connecting member 16 may be connected to or coupled to the peripheral portion of the second surface of the vibrating plate 15. The second surface of the connecting member 16, which is different from (or opposite to) the first surface, may be connected to or coupled to the supporting member 17.

[0319] The connecting member 16 according to an exemplary embodiment of the present disclosure may be configured to minimize or prevent the transmission of vibrations from the vibrating plate 15 to the support member 17. The connecting member 16 may include a material suitable for blocking vibrations. For example, the connecting member 16 may include a resilient material. For example, the connecting member 16 may include a material with elasticity for vibration absorption (or shock absorption). The connecting member 16 according to an exemplary embodiment may include a polyurethane material or a polyolefin material, but embodiments of the present disclosure are not limited thereto. The connecting member 16 according to an exemplary embodiment may include one or more of adhesives, double-sided tape, double-sided foam tape, and double-sided cushioning tape, but embodiments of the present disclosure are not limited thereto.

[0320] According to exemplary embodiments of the present disclosure, the connecting member 16 can be configured to have a thickness relatively greater than that of the vibrating plate 15. For example, the connecting member 16 may have a thickness for minimizing or preventing the transmission of vibrations from the vibrating plate 15 to the support member 17. The connecting member 16 can absorb the vibrations of the vibrating plate 15 based on its thickness and elasticity, thereby minimizing or preventing the transmission of vibrations from the vibrating plate 15 to the support member 17. Furthermore, the connecting member 16 can prevent physical contact (or friction) between the vibrating plate 15 and the support member 17, thus preventing the occurrence of noise (or noise sounds) caused by physical contact (or friction) between the vibrating plate 15 and the support member 17. For example, the connecting member 16 may be referred to as an intermediate member, a buffer member, an elastic member, a damping member, a vibration absorbing member, or a vibration blocking member, but embodiments of the present disclosure are not limited thereto.

[0321] According to another exemplary embodiment of the present disclosure, the connecting member 16 may be configured to minimize or prevent the transmission of vibrations of the vibrating plate 15 to the support member 17, and to reduce the reflection of sound waves generated and input based on the vibrations of the vibrating plate 15. For example, the connecting member 16 according to another exemplary embodiment of the present disclosure may include a first connecting member 16a and a second connecting member 16b.

[0322] The first connecting member 16a may be disposed between the vibrating plate 15 and the support member 17, thereby being surrounded by the second connecting member 16b. For example, the first connecting member 16a may be disposed inward from (or within) the second connecting member 16b. The first connecting member 16a may be configured to have a lower hardness than the second connecting member 16b. For example, the first connecting member 16a may include one or more of double-sided polyurethane strips, double-sided polyurethane foam strips, or double-sided sponge strips, but embodiments of this disclosure are not limited thereto.

[0323] The second connecting member 16b may be disposed between the vibrating plate 15 and the support member 17 to surround the first connecting member 16a. For example, the second connecting member 16b may be disposed outward from (or outside) the first connecting member 16a. The second connecting member 16b may be configured to have a higher hardness than the first connecting member 16a. For example, the second connecting member 16b may include one or more of double-sided polyolefin tape, double-sided polyolefin foam tape, double-sided acrylic tape, or double-sided acrylic foam tape, but embodiments of this disclosure are not limited thereto.

[0324] According to another exemplary embodiment of this disclosure, the connecting member 16 can absorb the sound generated and input based on the vibration of the vibrating plate 15 through a relatively soft first connecting member 16a disposed inward from a relatively rigid (or hard) second connecting member 16b. Therefore, the reflected sound (or reflected wave) generated by the connecting member 16 can be minimized. Thus, each of the highest and lowest sound pressure levels generated in the reproduction frequency band of the sound generated based on the vibration of the vibrating device 11 can be reduced, and thus the flatness of the sound pressure level can be improved.

[0325] In another exemplary embodiment of the connecting member 16 according to this disclosure, a relatively rigid second connecting member 16b may be disposed inward from a relatively soft first connecting member 16a. In this exemplary embodiment, the sound pressure level in a particular vocal band can be reduced. For example, the sound pressure level in the 2kHz to 5kHz and 7kHz to 12kHz vocal bands can be reduced due to reflected sound (or reflected waves) generated by the relatively rigid second connecting member 16b. Therefore, when it is necessary to reduce the sound pressure level in the 2kHz to 5kHz and 7kHz to 12kHz vocal bands based on the shape and size of the diaphragm 15, the relatively rigid second connecting member 16b may be disposed inward from the relatively soft first connecting member 16a, and the flatness of the sound pressure level can be improved based on the reduction of the sound pressure level in the 2kHz to 5kHz and 7kHz to 12kHz vocal bands caused by the second connecting member 16b.

[0326] The vibration device 10-5 according to another exemplary embodiment of the present disclosure may also include a connecting member 18 connected to the support member 17.

[0327] The connecting member 18 may be connected to or coupled to the rear surface of the support member 17. For example, the connecting member 18 may be configured to connect or couple the support member 17 or the vibration device 10-5 to any of the vibration member and the peripheral mechanism disposed near or adjacent to the vibration member.

[0328] Except that, in the exemplary embodiments of this disclosure, the connecting member 18 is connected or coupled to the rear surface of the support member 17 instead of the vibration device 11, the connecting member 18 may be connected to... Figure 1 and Figure 2 The adhesive member 12 shown is substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions thereof may be omitted. The connecting member 18 according to another exemplary embodiment of this disclosure may be substantially the same as the connecting member 16 or the first connecting member 16a of the connecting member 16; therefore, for the sake of brevity, repeated descriptions thereof may be omitted. Thus, the support member 17 or the vibration device 10-5 may be connected or coupled to one of the vibration member and the peripheral mechanism disposed near or adjacent to the vibration member via the connecting member 18.

[0329] According to an exemplary embodiment of this disclosure, the connecting member 16 and the connecting member 18 may be integrated with the support member 17. The integrated connecting member 16, support member 17 and connecting member 18 can be implemented as a single element constituting the vibration device 10-5, thus making the manufacturing process performed on the vibration device 10-5 easier.

[0330] According to another exemplary embodiment of this disclosure, the vibration device 10-5 may further include a first auxiliary member covering the entire first surface S1 of the vibration device 11 and a second auxiliary member covering the connecting member 18. The first auxiliary member may be referenced above. Figure 1 and Figure 2 The first auxiliary component 10a is basically the same as described above; therefore, for the sake of brevity, its repeated description can be omitted. The second auxiliary component can be referred to above. Figure 1 and Figure 2 The second auxiliary component 10b described is essentially the same, therefore, for the sake of brevity, its repeated description can be omitted.

[0331] As described above, the vibration device 10-5 according to another exemplary embodiment of the present disclosure can output sound based on the vibration of the vibrating plate 15 according to the vibration of the vibration device 11, and the vibration device 10-5 may include the vibrating plate 15 having a material optimized for the sound characteristics and / or sound pressure level characteristics generated based on the vibration of the vibration device 11. In addition, the vibration device 10-5 according to another exemplary embodiment of the present disclosure can be connected or fixed to the vibration member by the support member 17, so that the contact area (or fixing area) corresponding to the vibration member can be minimized, thereby the vibration device 10-5 can be easily connected or fixed to the vibration member including the curved portion.

[0332] Additionally, the vibration device 10-5 according to another exemplary embodiment of this disclosure may also include one or more pads 19 disposed at the peripheral portion of the vibration plate 15.

[0333] One or more pads 19 may be disposed on the peripheral portion of the second surface of the vibrating plate 15. One or more pads 19 may be positioned facing or toward the vibrating device 11. For example, one or more pads 19 may protrude from the connecting member 16 toward the vibrating device 11, but embodiments of this disclosure are not limited thereto. For example, one or more pads 19 may be disposed on the peripheral portion of the first surface of the vibrating plate 15, facing or toward the vibrating device 11.

[0334] The vibration device 10-5 according to another exemplary embodiment of the present disclosure may include four pads 19 disposed or protruding from each side of the connecting member 16 toward the central portion of the vibration device 11, but the embodiments of the present disclosure are not limited thereto. For example, two or more pads 19 may be disposed on each side of the connecting member 16. For example, one or more pads 19 disposed on each side of the connecting member 16 may be configured symmetrically with respect to the vibration device 11. For example, one or more pads 19 may include a sharp portion facing or toward the vibration device 11.

[0335] One or more pads 19 according to exemplary embodiments of the present disclosure may comprise polyurethane or polyolefin, but embodiments of the present disclosure are not limited thereto. For example, one or more pads 19 may comprise one or more of a single-sided tape, a single-sided foam tape, a single-sided cushioning tape, or a single-sided sponge tape, but embodiments of the present disclosure are not limited thereto.

[0336] According to an exemplary embodiment of this disclosure, one or more pads 19 can capture reflected waves, and thus reduce the reduction in sound pressure level caused by standing waves. For example, sound waves (or sound vibrations) generated when the diaphragm 15 vibrates via the vibrating device 11 can propagate radially from the vibrating device 11. Sound waves can be referred to as traveling waves. Traveling waves can be reflected by the connecting member 16 to generate reflected waves, and the reflected waves can propagate in the opposite direction to the traveling waves. The reflected waves overlap and interfere within the traveling waves and do not propagate, thus creating standing waves that remain stationary at a particular location. The sound pressure level may be reduced due to standing waves, and therefore, the sound characteristics may be degraded. Therefore, one or more pads 19 can capture reflected waves, thus preventing or minimizing the reduction in sound pressure level characteristics caused by standing waves based on the interference of reflected waves and traveling waves.

[0337] The vibration device 10-5 according to another exemplary embodiment of this disclosure may also include one or more pads 19, thereby further enhancing the sound characteristics and / or sound pressure level characteristics.

[0338] Figure 11This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 11 It shows how to modify Figure 9 The exemplary embodiment is implemented by the support member shown. Therefore, in the following description, other elements besides the support member and related elements are indicated by the same reference numerals, and for the sake of brevity, repeated descriptions of them may be omitted, or they will be given briefly.

[0339] Reference Figure 11 In another exemplary embodiment of the vibration device 10-5 according to the present disclosure, the support member 17 may include a bending structure for ensuring the rigidity of the vibration device 10-5.

[0340] The support member 17 according to an exemplary embodiment of the present disclosure may include a first support portion 17a, a second support portion 17b and a third support portion 17c.

[0341] The first support portion 17a may be connected to or coupled to the peripheral portion of the second surface of the vibrating plate 15. For example, the first support portion 17a may be connected to or coupled to the peripheral portion of the second surface of the vibrating plate 15 via the connecting member 16. The first support portion 17a may include a square band shape or a square ring shape containing a hole 17h, but the embodiments of this disclosure are not limited thereto, and may have a shape corresponding to the shape of the vibrating plate 15.

[0342] The second support portion 17b may be arranged parallel to the first support portion 17a. For example, the second support portion 17b may be located below the first support portion 17a so as to be parallel to the first support portion 17a. For example, the second support portion 17b may be arranged so as not to overlap with the first support portion 17a. For example, the second support portion 17b may be arranged to intersect with the first support portion 17a. For example, the second support portion 17b may be arranged in a shape surrounding the first support portion 17a.

[0343] The third support portion 17c can be connected or coupled between the first support portion 17a and the second support portion 17b, thereby increasing the rigidity of the support member 17. The third support portion 17c can be connected or coupled between a first side (or a first portion) of the first support portion 17a and a second side (or a second portion) of the second support portion 17b. For example, the first side (or a first portion) of the third support portion 17c can be connected or coupled to the first side of the first support portion 17a, and the second side (or a second portion) of the third support portion 17c can be connected or coupled to the second side of the second support portion 17b. Therefore, the connection portion (or bent portion) between the first side of the first support portion 17a and the first side of the third support portion 17c, and the connection portion (or bent portion) between the second side of the second support portion 17b and the second side of the third support portion 17c, can increase the rigidity of the support member 17, thus allowing the support member 17 to further stably support the vibrating plate 15.

[0344] According to an exemplary embodiment of this disclosure, the third support portion 17c can be configured between the first support portion 17a and the second support portion 17b to be parallel to or inclined from the third direction Z (or the thickness direction of the vibrating plate). For example, the third support portion 17c can be bent 90 degrees or less from the first side of the first support portion 17a to be parallel to the third direction Z. Additionally, the second support portion 17b can be bent 90 degrees from the second side of the third support portion 17c to be parallel to the first direction X or the second direction Y. For example, the angle θ1 between the first support portion 17a and the third support portion 17c can be less than 90 degrees, or it can be an acute angle.

[0345] According to an exemplary embodiment of this disclosure, in the support member 17, the angle θ1 between the first support portion 17a and the third support portion 17c can be an acute angle, and the first support portion 17a may not overlap with the second support portion 17b. Therefore, the sound generated based on the vibration of the vibrating plate 15 may not be reflected by the second support portion 17b and / or the third support portion 17c and can propagate in a downward direction relative to the vibrating plate 15, thereby preventing or minimizing the occurrence of noise caused by reflected sound (or reflected waves) reflected by the second support portion 17b and / or the third support portion 17c. When the angle θ1 between the first support portion 17a and the third support portion 17c is an obtuse angle and the first support portion 17a overlaps with the second support portion 17b, noise may occur because a portion of the sound generated based on the vibration of the vibrating plate 15 is reflected by the second support portion 17b and / or the third support portion 17c, resulting in a reduction in sound characteristics and / or sound pressure level characteristics.

[0346] According to another exemplary embodiment of the present disclosure, the vibration device 10-5 may also include a connecting member 18 connected to the rear surface of the support member 17.

[0347] The connecting member 18 may be connected to or coupled to the second support portion 17b of the support member 17. For example, the connecting member 18 may be configured to connect or couple the support member 17 or the vibration device 10-5 to any of the vibration member and the peripheral mechanism disposed near or adjacent to the vibration member.

[0348] According to an exemplary embodiment of this disclosure, the connecting member 18 can be connected to or coupled to the rear surface of the second support portion 17b of the support member 17. For example, in addition to connecting or coupling the connecting member 18 to the second support portion 17b of the support member 17 instead of the vibration device 11, the connecting member 18 can be coupled to... Figure 1 and Figure 2 The adhesive member 12 shown is substantially the same, therefore, for brevity, its repeated description can be omitted. The connecting member 18 according to another exemplary embodiment of this disclosure may be substantially the same as the connecting member 16 or the first connecting member 16a of the connecting member 16; therefore, for brevity, its repeated description can be omitted. Thus, the support member 17 or the vibration device 10-5 can be connected or coupled to any of the vibration member and the peripheral mechanisms disposed near or adjacent to the vibration member via the connecting member 18. For example, the connecting member 16 and the connecting member 18 according to an exemplary embodiment of this disclosure may be integrated with the support member 17. The integrated connecting member 16, support member 17, and connecting member 18 can be implemented as a single element constituting the vibration device 10-5, thus simplifying the manufacturing process performed on the vibration device 10-5.

[0349] According to another exemplary embodiment of this disclosure, the connecting member 18 may include one or more screws or bolts fastened to the second support portion 17b of the support member 17. For example, the threads of the connecting member 18 may pass through the second support portion 17b of the support member 17 and may be fastened or connected to any of the vibrating member and the peripheral mechanism disposed near or adjacent to the vibrating member. For example, an elastic member may be disposed between the second support portion 17b of the support member 17 and the vibrating member (or the peripheral mechanism). The elastic member may be configured to block or minimize vibrations transmitted from the support member 17 to the vibrating member (or the peripheral mechanism).

[0350] According to another exemplary embodiment of this disclosure, the vibration device 10-5 may further include a first auxiliary member covering the entire first surface S1 of the vibration device 11 and a second auxiliary member covering the rear surface of the connecting member 18. The first auxiliary member may be the same as described above. Figure 1 and Figure 2 The first auxiliary component 10a described is substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of it can be omitted. The second auxiliary component can be referred to above. Figure 1 and Figure 2 The second auxiliary component 10b described is substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of it may be omitted.

[0351] As mentioned above, similar to the reference above. Figure 9 and Figure 10 The described vibration device 10-5, according to another exemplary embodiment of the present disclosure, can output sound based on the vibration of the vibrating plate 15, can enhance sound characteristics and / or sound pressure level characteristics, and can be easily connected or fixed to a vibrating member including a curved portion.

[0352] Figure 12 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 12 It shows how to modify Figure 9 or Figure 11 The exemplary embodiment is implemented by the support member shown. Therefore, in the following description, elements other than the support member and related elements are indicated by the same reference numerals, and for the sake of brevity, repeated descriptions of them may be omitted, or repeated descriptions of them will be given briefly.

[0353] Reference Figure 12 In another exemplary embodiment of the vibration device 10-5 according to the present disclosure, the support member 17 may include a bending structure for ensuring the rigidity of the vibration device 10-5 and a protective structure for protecting the vibration device 11.

[0354] The support member 17 according to an exemplary embodiment of the present disclosure may include a first support portion 17a, a second support portion 17b and a third support portion 17c.

[0355] The first support portion 17a may be connected to or coupled to the peripheral portion of the second surface of the vibrating plate 15. For example, the first support portion 17a may be connected to or coupled to the peripheral portion of the second surface of the vibrating plate 15 via the connecting member 16. The first support portion 17a may include a square band shape or a square ring shape containing a hole 17h, but the embodiments of this disclosure are not limited thereto, and may have a shape corresponding to the shape of the vibrating plate 15.

[0356] The second support portion 17b may be arranged parallel to the first support portion 17a. For example, the second support portion 17b may be positioned above the first support portion 17a so as to be parallel to the first support portion 17a. For example, the second support portion 17b may be configured not to overlap with the first support portion 17a. For example, the second support portion 17b may be configured to intersect with the first support portion 17a. For example, the second support portion 17b may be configured to surround the shape of the first support portion 17a.

[0357] The third support portion 17c can be connected or coupled between the first support portion 17a and the second support portion 17b, thereby increasing the rigidity of the support member 17. The third support portion 17c can be connected or coupled between a first side (or a first portion) of the first support portion 17a and a second side of the second support portion 17b. For example, the first side of the third support portion 17c can be connected or coupled to the first side of the first support portion 17a, and the second side (or a second portion) of the third support portion 17c can be connected or coupled to the second side of the second support portion 17b. Therefore, the connection portion (or bent portion) between the first side of the first support portion 17a and the first side of the third support portion 17c, and the connection portion (or bent portion) between the second side of the second support portion 17b and the second side of the third support portion 17c, can increase the rigidity of the support member 17, thus allowing the support member 17 to further stably support the vibrating plate 15.

[0358] According to an exemplary embodiment of this disclosure, the third support portion 17c can be configured between the first support portion 17a and the second support portion 17b to be parallel to or inclined from the third direction Z (or the thickness direction of the vibrating plate). For example, the third support portion 17c can be bent by 90 degrees or less from a first side (or a first portion) of the first support portion 17a to be parallel to the third direction Z. Furthermore, the second support portion 17b can be bent by 90 degrees from a second side (or a second portion) of the third support portion 17c to be parallel to the first direction X or the second direction Y. For example, the angle between the first support portion 17a and the third support portion 17c can be less than 90 degrees, or it can be an acute angle.

[0359] According to an exemplary embodiment of this disclosure, a third support portion 17c can be configured between a first support portion 17a and a second support portion 17b to surround the side surface of each of the connecting member 16, the vibrating plate 15, the adhesive member 12, and the vibration device 11. For example, relative to a third direction (or the thickness direction of the vibrating plate) Z, the height of the third support portion 17c can be higher than (or greater than) the height between the rear surface of the connecting member 16 and the first surface S1 of the vibration device 11. For example, the height of the third support portion 17c can protrude upward relative to the first surface S1 of the vibration device 11, thereby preventing physical contact between the external structure and the vibration device 11, thus the first surface S1 of the vibration device 11 can be disposed below the second support portion 17b. For example, relative to a third direction Z, the third support portion 17c can be connected to the first support portion 17a or can be bent from the first support portion 17a to surround the vibration device 11, thus defining a receiving space on the first support portion 17a. Therefore, each of the connecting member 16, the vibrating plate 15, the adhesive member 12, and the vibration device 11 can be housed or contained in a receiving space defined on the first support portion 17a by the third support portion 17c, and thus can be protected from external impacts.

[0360] According to an exemplary embodiment of this disclosure, the support member 17 or the vibration device 10-5 can be connected or coupled to any one of the vibration member and the peripheral mechanism disposed near or adjacent to the vibration member via the connecting member 18. For example, the vibration device 10-5 can be connected or coupled to any one of the vibration member and the peripheral mechanism disposed near or adjacent to the vibration member via the connecting member 18 fastened or coupled to the second support portion 17b of the support member 17.

[0361] According to another exemplary embodiment of this disclosure, the vibration device 10-5 may further include a first auxiliary member and a second auxiliary member. The first auxiliary member is connected to the connecting member 18 to cover the first surface S1 of the vibration device 11, and the second auxiliary member is connected to the first support portion 17a of the support member 17 to cover the rear surface of the vibrating plate 15. The first auxiliary member may be referenced above. Figure 1 and Figure 2 The first auxiliary component 10a is basically the same as described above; therefore, for the sake of brevity, its repeated description can be omitted. The second auxiliary component can be referred to above. Figure 1 and Figure 2 The second auxiliary component 10b described is essentially the same, therefore, for the sake of brevity, its repeated description can be omitted.

[0362] As mentioned above, similar to the reference above. Figure 10 or Figure 11The described vibration device 10-5, according to another exemplary embodiment of this disclosure, can output sound based on the vibration of the vibrating plate 15, can enhance sound characteristics and / or sound pressure level characteristics, and can be easily connected or fixed to a vibration member including a curved portion. Furthermore, the vibration device 10-5 according to another exemplary embodiment of this disclosure may include a support member 17 configured to surround the side surfaces of the vibrating plate 15 and the vibration device 11, thereby preventing damage to the vibration device 11 from external impacts and reducing the overall thickness of the vibration device 10-5, thereby making the vibration device 10-5 thinner.

[0363] Figure 13 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 13 It shows how to combine Figure 11 and Figure 12 The exemplary embodiment is implemented by the support member shown. Therefore, in the following description, elements other than the support member and related elements are indicated by the same reference numerals, and for the sake of brevity, repeated descriptions of them may be omitted, or repeated descriptions of them will be given briefly.

[0364] Reference Figure 13 In another exemplary embodiment of the vibration device 10-5 according to the present disclosure, the support member 17 may include a bending structure for ensuring the rigidity of the vibration device 10-5 and a protective structure for protecting the vibration device 11.

[0365] The support member 17 according to an exemplary embodiment of the present disclosure may include a first support portion 17a, a second support portion 17b, a third support portion 17c, a fourth support portion 17d, and a fifth support portion 17e.

[0366] Each of the first support portion 17a, the second support portion 17b, and the third support portion 17c can be referenced above. Figure 11 The first support portion 17a, the second support portion 17b, and the third support portion 17c of the described support member 17 are substantially the same. Therefore, the same reference numerals denote the same elements, and their repeated descriptions can be omitted for the sake of brevity.

[0367] The fourth support portion 17d may be arranged parallel to the third direction (or the thickness direction of the vibrating plate) Z, and may be connected to or coupled to the first support portion 17a. For example, the fourth support portion 17d may extend longer from the third support portion 17c in the third direction Z.

[0368] According to an exemplary embodiment of this disclosure, the fourth support portion 17d can be connected or coupled to the first support portion 17a to surround the side surfaces of each of the connecting member 16, the vibrating plate 15, the adhesive member 12, and the vibration device 11. For example, relative to a third direction Z, the height of the fourth support portion 17d can be higher than (or greater than) the height between the rear surface of the connecting member 16 and the first surface S1 of the vibration device 11. For example, the height of the fourth support portion 17d can protrude upward relative to the first surface S1 of the vibration device 11, thereby preventing physical contact between the external structure and the vibration device 11, so that the first surface S1 of the vibration device 11 can be disposed below the upper part of the fourth support portion 17d. For example, the fourth support portion 17d can be connected to the first support portion 17a to surround the vibration device 11, so that a receiving space can be defined on the first support portion 17a. Therefore, each of the connecting member 16, the vibrating plate 15, the adhesive member 12, and the vibration device 11 can be received or accommodated in the receiving space defined on the first support portion 17a by the fourth support portion 17d, and thus can be protected from external impacts.

[0369] The fifth support portion 17e may be arranged parallel to the second support portion 17b. For example, the fifth support portion 17e may be connected to the fourth support portion 17d to face the second support portion 17b. For example, the fifth support portion 17e may be arranged to overlap with the second support portion 17b instead of the first support portion 17a.

[0370] The fifth support portion 17e can be bent from the second side (or second part) of the fourth support portion 17d to face the second support portion 17b, thereby increasing the rigidity of the support member 17. Therefore, the connection portion (or bent portion) between the first side of the first support portion 17a and the first side (or first part) of the third support portion 17c, the connection portion (or bent portion) between the second side of the second support portion 17b and the second side (or second part) of the third support portion 17c, the connection portion between the first side (or first part) of the first support portion 17a and the first side of the fourth support portion 17d, and the connection portion (or bent portion) between the second side (or second part) of the fourth support portion 17d and the second side (or second part) of the fifth support portion 17e can increase the rigidity of the support member 17, thus the support member 17 can further stably support the vibrating plate 15.

[0371] According to an exemplary embodiment of this disclosure, the support member 17 or the vibration device 10-5 can be connected or coupled to the vibration member and a peripheral mechanism disposed near or adjacent to the vibration member via a first connecting member 18a and a second connecting member 18b. For example, the support member 17 or the vibration device 10-5 can be connected or coupled between the vibration member and the peripheral mechanism. For example, the vibration device 10-5 can be connected or coupled to the vibration member via a first connecting member 18a fastened or coupled to a second support portion 17b of the support member 17. Furthermore, the vibration device 10-5 can be connected or coupled to a peripheral mechanism disposed near the vibration member via a second connecting member 18b fastened or coupled to a fifth support portion 17e of the support member 17.

[0372] According to another exemplary embodiment of this disclosure, the vibration device 10-5 may further include a first auxiliary member and a second auxiliary member. The first auxiliary member is connected to the second connecting member 18b to cover the first surface S1 of the vibration device 11, and the second auxiliary member is connected to the first connecting member 18a to cover the rear surface of the vibrating plate 15. The first auxiliary member may be referenced above. Figure 1 and Figure 2 The first auxiliary component 10a is basically the same as described above; therefore, for the sake of brevity, its repeated description can be omitted. The second auxiliary component can be referred to above. Figure 1 and Figure 2 The second auxiliary component 10b described is essentially the same, therefore, for the sake of brevity, its repeated description can be omitted.

[0373] As mentioned above, similar to the reference above. Figure 11 and Figure 12 The described vibration device 10-5, according to another exemplary embodiment of this disclosure, can output sound based on the vibration of the vibrating plate 15, can enhance sound characteristics and / or sound pressure level characteristics, and can be easily connected or fixed to a vibration member including a curved portion. Furthermore, the vibration device 10-5 according to another exemplary embodiment of this disclosure may include a support member 17 configured to surround the side surfaces of the vibrating plate 15 and the vibration device 11, thus preventing damage to the vibration device 11 from external impacts.

[0374] Figure 14 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 14 It shows how to modify Figure 11 The exemplary embodiment is implemented by the support member shown. Therefore, in the following description, elements other than the support member and related elements are indicated by the same reference numerals, and for the sake of brevity, repeated descriptions of them may be omitted, or they will be given briefly.

[0375] Reference Figure 14 According to another exemplary embodiment of the present disclosure, the vibration device 10-5 may include a bending structure for ensuring the rigidity of the vibration device 10-5, a protective structure for protecting the vibration device 11, and a vibration suppression structure for supporting the member 17.

[0376] The support member 17 according to an exemplary embodiment of the present disclosure may include a first support portion 17a, a second support portion 17b, and a vibration blocking portion (or vibration isolation portion or vibration damping portion) 17f.

[0377] Each of the first support portion 17a and the second support portion 17b can be referenced above. Figure 11 The first support portion 17a and the second support portion 17b of the described support member 17 are substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, their repeated descriptions can be omitted.

[0378] According to an exemplary embodiment of this disclosure, the first support portion 17a and the second support portion 17b may be configured in a stepped shape in the third direction Z, such that the vibration blocking portion 17f is located between the first support portion 17a and the second support portion 17b. For example, the second support portion 17b may be located below the first support portion 17a. Therefore, the first support portion 17a of the support member 17 may be spaced apart from the vibration member, thereby preventing physical contact between the first support portion 17a and the vibration member, and thus preventing noise (or noise reduction) caused by physical contact between the first support portion 17a and the vibration member from reducing the sound characteristics based on the vibration of the vibrating plate 15.

[0379] The vibration blocking portion 17f can be configured to increase the rigidity of the support member 17 and prevent (or suppress) the vibration of the support member 17 based on the vibration of the vibration device 11.

[0380] According to an exemplary embodiment of this disclosure, the vibration blocking portion 17f can be configured between the first support portion 17a and the second support portion 17b to include one or more curved portions for increasing the rigidity of the support member 17. For example, the vibration blocking portion 17f can be disposed between the first support portion 17a and the second support portion 17b to surround the side surface of the vibration device 11. For example, the vibration blocking portion 17f can project in a third-direction Z-shape between the first support portion 17a and the second support portion 17b to surround the side surface of the vibration device 11. For example, the vibration blocking portion 17f can include a quadrilateral shape, a trapezoidal shape, or a convex curved surface shape. Therefore, when the vibrating plate 15 vibrates based on the vibration of the vibration device 11, the vibration blocking portion 17f can prevent or minimize the transmission of vibration transmitted to the first support portion 17a through the connecting member 16 to the second support portion 17b, thereby at least preventing or suppressing the transmission of vibration of the vibrating plate 15 to the vibration member.

[0381] According to an exemplary embodiment of this disclosure, the height of the vibration blocking portion 17f relative to the third-party direction Z can be higher than (or greater than) the height between the rear surface of the connecting member 16 and the first surface S1 of the vibration device 11. For example, the height of the vibration blocking portion 17f can protrude upward relative to the first surface S1 of the vibration device 11, thereby preventing physical contact between the external structure and the vibration device 11. Therefore, the first surface S1 of the vibration device 11 can be positioned below the upper part of the vibration blocking portion 17f. For example, the vibration blocking portion 17f can be connected to the first support portion 17a to surround the vibration device 11, thus defining a receiving space on the first support portion 17a. Therefore, each of the connecting member 16, the vibrating plate 15, the adhesive member 12, and the vibration device 11 can be housed or accommodated in the receiving space defined by the vibration blocking portion 17f on the first support portion 17a, and thus can be protected from external impacts.

[0382] According to an exemplary embodiment of this disclosure, the support member 17 or the vibration device 10-5 can be connected or coupled to either the vibration member or any of the peripheral mechanisms disposed near the vibration member via the connecting member 18. For example, the vibration device 10-5 can be connected or coupled to either the vibration member or any of the peripheral mechanisms disposed near the vibration member via the connecting member 18 fastened or coupled to the second support portion 17b of the support member 17.

[0383] According to another exemplary embodiment of this disclosure, the vibration device 10-5 may further include a first auxiliary member and a second auxiliary member. The first auxiliary member is connected to the vibration blocking portion 17f of the support member 17 to cover the first surface S1 of the vibration device 11, and the second auxiliary member is connected to the connecting member 18 to cover the rear surface of the vibrating plate 15. The first auxiliary member may be referenced above. Figure 1 and Figure 2 The first auxiliary component 10a is basically the same as described above; therefore, for the sake of brevity, its repeated description can be omitted. The second auxiliary component can be referred to above. Figure 1 and Figure 2 The second auxiliary component 10b described is essentially the same, therefore, for the sake of brevity, its repeated description can be omitted.

[0384] As mentioned above, similar to the reference above. Figure 11 The described vibration device 10-5, according to another exemplary embodiment of this disclosure, can output sound based on the vibration of the vibrating plate 15, which can enhance sound characteristics and / or sound pressure level characteristics, and can be easily connected or fixed to a vibrating member including a curved portion, thereby preventing the vibration device 11 from being damaged by external impacts. Furthermore, the vibration device 10-5 according to another exemplary embodiment of this disclosure can prevent the vibration of the vibrating plate 15 from being transmitted to the vibrating member or minimize it due to the vibration blocking portion 17f of the support member 17, thus further enhancing sound characteristics and / or sound pressure level characteristics. For example, the vibration device 10-5 according to another exemplary embodiment of this disclosure can have a sound pressure level of 56 dB to 84 dB in the 200 Hz to 20 kHz tonal band and can output sound with a flatness of approximately 28 dB.

[0385] Figure 15 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 15 It shows how to... Figure 9 The example shown is an implementation of a vibration device achieved by adding a housing.

[0386] Reference Figure 15 According to another exemplary embodiment of the present disclosure, the vibration device 10-6 may include a vibration device 11, an adhesive member 12, a vibration plate 15, a support member 17, one or more pads 19, and a housing 20.

[0387] Vibration device 11, adhesive component 12, vibrating plate 15, support component 17, and one or more pads 19 may refer to the above. Figure 9 and Figure 10The described vibration device 11, adhesive member 12, vibrating plate 15, support member 17 and one or more pads 19 are substantially the same, therefore the same reference numerals denote the same elements, and for the sake of brevity, their repeated descriptions may be omitted.

[0388] The vibration device 10-6 according to another exemplary embodiment of the present disclosure may also include a housing 20, which is connected to the vibrating plate 15 to surround the vibration device 11.

[0389] The housing 20 may be connected to or attached to the peripheral portion of the first surface of the vibrating plate 15 to cover the vibrating device 11. For example, the housing 20 may be connected to or attached to the peripheral portion of the first surface of the vibrating plate 15 via a connecting member 21. The housing 20 may provide an enclosed space CS at the first surface of the vibrating plate 15, the enclosed space CS covering or surrounding the vibrating device 11. For example, the housing 20 may be referred to as a sealing member, a sealing gap, a sealing box, or a speaker enclosure, etc., but the embodiments of this disclosure are not limited thereto. The enclosed space CS may be referred to as an air gap, a vibration space, a sound space, or a speaker enclosure, etc., but the embodiments of this disclosure are not limited thereto.

[0390] The housing 20 may include a cover portion (or ceiling portion, base portion, or bottom portion) 20u covering the vibration device 11, and sidewalls 20s connected to the cover portion 20u to define the enclosed space CS. The sidewalls 20s of the housing 20 may be connected or coupled to the vibrating plate 15 by a connecting member 21. For example, the housing 20 may have a box-shaped form including the enclosed space CS, wherein one side (or a portion) of the enclosed space CS is open, but embodiments of the present disclosure are not limited thereto. For example, the housing 20 may have a shape that is the same as or different from the shape of the vibration device 11. For example, when the vibration device 11 has a square shape, the housing 20 may include a square shape having a size relatively larger than the size of the vibration device 11, but embodiments of the present disclosure are not limited thereto, and the housing 20 may have a polygonal shape for covering or surrounding the vibration device 11, or may have a non-quadrilateral shape including a circular or oval shape. For example, the housing 20 may include one or more of metallic and non-metallic materials (or composite non-metallic materials), but embodiments of the present disclosure are not limited thereto. For example, the housing 20 may include one or more materials such as metal, plastic and wood, but the embodiments disclosed herein are not limited thereto.

[0391] According to an exemplary embodiment of this disclosure, the housing 20 can retain the impedance component based on the air acting on the diaphragm 15 when it vibrates. For example, the air near the diaphragm 15 can resist the vibration of the diaphragm 15 and can be used as an impedance component having different resistance and inductive resistance components based on frequency. Therefore, the housing 20 can form an enclosed space CS around the vibrating device 11 in the first surface of the diaphragm 15, and thus can retain the impedance component (or air impedance or acoustic impedance) acting on the diaphragm 15 due to air, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords and improving the sound quality of the high-pitched vocal cords.

[0392] exist Figure 15 In the illustration, the housing 20 is shown as having a closed structure, but embodiments of the present disclosure are not limited thereto, and the housing 20 may be configured to have a bass reflex or open baffle structure.

[0393] According to another exemplary embodiment of this disclosure, the vibration device 10-6 may further include a first auxiliary member coupled to a cover portion 20u of the housing 20 and a second auxiliary member coupled to a connecting member 18 to cover the rear surface of the vibrating plate 15. The first auxiliary member may be the same as described above. Figure 1 and Figure 2 The first auxiliary component 10a is basically the same as described above; therefore, for the sake of brevity, its repeated description can be omitted. The second auxiliary component can be referred to above. Figure 1 and Figure 2 The second auxiliary component 10b described is essentially the same, therefore, for the sake of brevity, its repeated description can be omitted.

[0394] In another exemplary embodiment, Figure 15 The support member 17, connecting member 16, and connecting member 18 shown can be Figures 11 to 14 The supporting member 17, connecting member 16 and connecting member 18 shown in one of the figures are replaced by the ones shown in the figure. For the sake of brevity, their repeated descriptions can be omitted.

[0395] As mentioned above, similar to the reference above. Figure 9 and Figure 10The described vibration device 10-5, and the vibration device 10-6 according to another exemplary embodiment of this disclosure, can output sound based on the vibration of the vibrating plate 15, can enhance sound characteristics and / or sound pressure level characteristics, and can be easily connected or fixed to a vibrating member including a curved portion. Furthermore, in the vibration device 10-6 according to another exemplary embodiment of this disclosure, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal bands can be enhanced by the housing 20, and the sound quality of the high-pitched vocal bands can be enhanced by the housing 20. For example, the vibration device 10-6 according to another exemplary embodiment of this disclosure can have a sound pressure level of 30 dB to 66 dB in the 200 Hz to 20 kHz tonal vocal bands, and can output sound with a flatness of approximately 36 dB.

[0396] Figure 16 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure, and illustrating the addition of an elastic connecting member. Figure 15 This is an exemplary embodiment implemented using the vibration device shown. Therefore, in the following description, elements other than the elastic connection members and related elements are indicated by the same reference numerals, and for the sake of brevity, repeated descriptions may be omitted.

[0397] Reference Figure 16 According to another exemplary embodiment of the present disclosure, the vibration device 10-6 may further include one or more elastic connecting members (or connecting members) 22.

[0398] One or more resilient connecting members 22 may be configured to prevent or minimize vibration (or oscillation) of the housing 20 caused by the pressure of the enclosed space CS based on the vibration of the vibrating device 11 or the vibrating plate 15. For example, one or more resilient connecting members 22 may prevent or minimize the reduction in sound characteristics and / or sound pressure level characteristics caused by noise (or oscillation) that occurs due to vibration (or oscillation or undesired vibration) of the housing 20 caused by the vibration of the vibrating device 11 or the vibrating plate 15.

[0399] One or more resilient connecting members 22 according to exemplary embodiments of the present disclosure may be configured or connected between the vibrating plate 15 and the housing 20. For example, one or more resilient connecting members 22 according to exemplary embodiments of the present disclosure may be connected between the peripheral portion of the vibrating plate 15 and the housing 20. For example, one or more resilient connecting members 22 may be connected between the cover portion 20u of the housing 20 facing the vibration device 11 and the vibrating plate 15. In one or more resilient connecting members 22, a first side (or a first portion) of the resilient connecting member 22 may be connected or coupled to the inner surface of the cover portion 20u of the housing 20, and a second side (or a second portion) of the resilient connecting member 22 that is different from (or opposite to) the first side may be connected to the vibrating plate 15.

[0400] One or more resilient connecting members 22 can connect the cover portion 20u of the housing 20 to the diaphragm 15, thereby preventing or minimizing vibration (or oscillation or undesired vibration) of the cover portion 20u of the housing 20. Additionally, one or more resilient connecting members 22 can trap sound waves and / or reflected waves in the corners and sidewalls of the housing 20 and / or the diaphragm 15, thereby preventing or minimizing the reduction in sound characteristics and / or sound pressure level characteristics caused by reflected waves generated in the corners and sidewalls of the housing 20 and / or the diaphragm 15.

[0401] One or more resilient connection members 22 according to exemplary embodiments of the present disclosure may include a material having elasticity for vibration absorption (or shock absorption). For example, one or more resilient connection members 22 may include one or more of double-sided foam strips, double-sided cushioning strips, double-sided sponge strips, double-sided polyurethane strips, and double-sided polyurethane foam strips, but embodiments of the present disclosure are not limited thereto. For example, one or more resilient connection members 22 may be elastic and may therefore be referred to as vibration prevention members, vibration damping members, resilient supports, resilient support members, or resilient support portions, but embodiments of the present disclosure are not limited thereto.

[0402] According to an exemplary embodiment of this disclosure, one or more resilient connecting members 22 may be disposed at the vibrating plate 15 between the sidewall 20s of the housing 20 and the vibration device 11. For example, one or more resilient connecting members 22 may be disposed at the vibrating plate 15 to overlap at least a portion of the support member 17, such that the adverse effects of vibration of the vibrating plate 15 are exerted on the support member 17 with relatively little, and vibration (or oscillation or undesirable vibration) of the housing 20 is prevented or minimized.

[0403] According to exemplary embodiments of the present disclosure, one or more elastic connecting members 22 may be configured to surround the side surface of the vibration device 11. For example, one or more elastic connecting members 22 may be configured in a closed-loop shape surrounding the side surface of the vibration device 11. For example, one or more elastic connecting members 22 may be configured in a circular shape, an oval shape, or a polygonal shape, but embodiments of the present disclosure are not limited thereto.

[0404] According to an exemplary embodiment of this disclosure, the resilient connecting member 22 having a closed-loop shape can be configured as a continuous, unbroken single-line shape, or it can be configured to have multiple line patterns arranged to adhere continuously to each other along the closed-loop line without gaps or distances, thereby having a closed-loop shape. For example, when the resilient connecting member 22 has a quadrilateral shape, the resilient connecting member 22 may include four line patterns facing the four side surfaces of the vibration device 11, respectively.

[0405] As mentioned above, similar to the reference above. Figure 15 The described vibration device 10-6, according to another exemplary embodiment of this disclosure, can output sound based on the vibration of the vibrating plate 15, can enhance sound characteristics and / or sound pressure level characteristics, and can be easily connected or fixed to a vibrating member including a curved portion. The housing 20 can enhance the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords, and can also enhance the sound quality of the high-pitched vocal cords. Furthermore, in the vibration device 10-6 according to another exemplary embodiment of this disclosure, the vibration (or vibration) of the housing 20 can be prevented or minimized by one or more elastic connecting members 22, and therefore, the reduction in sound characteristics and / or sound pressure level characteristics can be prevented or minimized.

[0406] Figure 17 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 17 It shows how to modify Figure 15 The exemplary embodiment is implemented by the structure of the housing in the vibration device shown. Therefore, in the following description, elements other than the housing and related components are indicated by the same reference numerals, and repeated descriptions may be omitted for brevity.

[0407] Reference Figure 17 In another exemplary embodiment of the vibration device 10-6 according to the present disclosure, the housing 20 may include one or more reinforcing portions 20a and 20b.

[0408] One or more reinforcing portions 20a and 20b may be configured to increase the rigidity of the housing 20. One or more reinforcing portions 20a and 20b may increase the rigidity of the housing 20 and thus prevent or minimize vibration (or vibration or undesired vibration) of the housing 20 caused by the pressure of the enclosed space CS based on the vibration of the vibrating device 11 or the vibrating plate 15, thereby preventing or minimizing the reduction in acoustic characteristics and / or sound pressure level characteristics caused by the vibration (or vibration or undesired vibration) of the housing 20.

[0409] One or more reinforcing portions 20a and 20b may be configured at the cover portion 20u of the housing 20 facing the vibration device 11.

[0410] According to exemplary embodiments of the present disclosure, one or more reinforcing portions 20a and 20b may protrude from the cover portion 20u of the housing 20 toward the vibration device 11, but embodiments of the present disclosure are not limited thereto. For example, one or more reinforcing portions 20a and 20b may protrude in a direction different from (or opposite to) the direction from the cover portion 20u of the housing 20 toward the vibration device 11.

[0411] One or more reinforcement portions 20a and 20b according to exemplary embodiments of this disclosure may be configured in a linear or closed-loop linear form.

[0412] According to an exemplary embodiment of the present disclosure, the housing 20 may include a plurality of reinforcing portions 20a and 20b, and each of the plurality of reinforcing portions 20a and 20b may be configured as a line form or a closed loop form with a certain interval.

[0413] Each of the plurality of reinforcing portions 20a and 20b according to an exemplary embodiment of the present disclosure may be configured in a concentric circle shape. For example, each of the plurality of reinforcing portions 20a and 20b may be configured in a circular shape, an oval shape, or a polygonal shape.

[0414] Each of the plurality of reinforcing portions 20a and 20b according to another exemplary embodiment of the present disclosure may be configured to intersect each other. For example, each of the plurality of reinforcing portions 20a and 20b may be configured in a "+", "×", or "*" shape.

[0415] In another exemplary embodiment, the vibration device 10-6 according to another exemplary embodiment of this disclosure may further include the above-mentioned references. Figure 16 One or more elastic connecting members are described. One or more elastic connecting members 22 may be disposed between the vibrating plate 15 and the housing 20. One or more elastic connecting members 22 may be referenced above. Figure 16The one or more elastic connecting members 22 described are substantially the same, therefore the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0416] As mentioned above, similar to the reference above. Figure 15 or Figure 16 The described vibration device 10-6, according to another exemplary embodiment of this disclosure, can output sound based on the vibration of the vibrating plate 15, can enhance sound characteristics and / or sound pressure level characteristics, and can be easily connected or fixed to a vibrating member including a curved portion. The housing 20 can enhance the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords, and can also enhance the sound quality of the high-pitched vocal cords. Furthermore, in the vibration device 10-6 according to another exemplary embodiment of this disclosure, the vibration (or vibration or undesirable vibration) of the housing 20 can be prevented or minimized by one or more reinforcing portions 20a and 20b and / or one or more elastic connecting members 22, and thus, the sound characteristics and / or sound pressure level characteristics can be enhanced.

[0417] Figure 18 This is a cross-sectional view showing a vibration device according to another exemplary embodiment of the present disclosure. Figure 18 It shows how to add a housing Figure 11 An exemplary implementation is shown in the diagram, achieved through a vibration device.

[0418] Reference Figure 18 According to another exemplary embodiment of the present disclosure, the vibration device 10-7 may include a vibration device 11, an adhesive member 12, a vibration plate 15, a support member 17, one or more pads 19, and a housing 23.

[0419] Each of the vibration device 11, adhesive component 12, vibrating plate 15, support component 17, and one or more pads 19 may refer to the above description. Figure 9 and Figure 11 The described vibration device 11, adhesive member 12, vibrating plate 15, support member 17 and one or more pads 19 are substantially the same, therefore the same reference numerals denote the same elements, and for the sake of brevity, their repeated descriptions may be omitted.

[0420] According to another exemplary embodiment of the present disclosure, the vibration device 10-7 may also include a housing 23 that houses or contains the vibration device 11, the adhesive member 12, the vibrating plate 15, and the support member 17.

[0421] The housing 23 may have a box-like shape, including an internal space (or inner space) 23s for housing or accommodating the vibration device 11, the adhesive member 12, the vibrating plate 15, and the support member 17. The housing 23 may include one or more of metallic and non-metallic materials (or composite non-metallic materials), but embodiments of this disclosure are not limited thereto. For example, the housing 23 may include one or more of metallic materials, plastics, and wood, but embodiments of this disclosure are not limited thereto. For example, the housing 23 may be referred to as an outer shell, outer casing, outer shell component, housing component, or cabinet, etc., but embodiments of this disclosure are not limited thereto.

[0422] According to an exemplary embodiment of the present disclosure, the housing 23 may include a first housing member 23a, a second housing member 23b, and a housing sidewall 23c.

[0423] The first housing member 23a may be disposed on the second surface of the vibrating plate 15. For example, the first housing member 23a may be disposed spaced apart from the vibrating plate 15 and facing the vibrating plate 15. For example, the first housing member 23a may include a plate shape, but embodiments of the present disclosure are not limited thereto.

[0424] The second housing member 23b may be disposed on the first surface of the vibrating plate 15. For example, the second housing member 23b may be spaced apart from and facing the vibrating device 11. The second housing member 23b may be disposed parallel to the first housing member 23a, with the vibrating device 11 and the vibrating plate 15 located between the second housing member 23b and the first housing member 23a. For example, the second housing member 23b may include a plate shape, but embodiments of this disclosure are not limited thereto.

[0425] The housing sidewall 23c can be connected between the first housing member 23a and the second housing member 23b. The housing sidewall 23c can be connected between the peripheral portion of the first housing member 23a and the peripheral portion of the second housing member 23b. In the housing sidewall 23c, a first side (or lower side) can be connected to the peripheral portion of the first housing member 23a, and a second side (or upper side) of the housing sidewall 23c can be connected to the peripheral portion of the second housing member 23b.

[0426] The housing sidewall 23c provides an internal space 23s within the housing 23 through the space surrounding the first housing member 23a and the second housing member 23b. For example, the housing sidewall 23c can be integrated into one of the first housing member 23a and the second housing member 23b. For example, the housing sidewall 23c and the first housing member 23a can be integrated as a single unit, thus the internal space 23s surrounded by the housing sidewall 23c can be disposed on the first housing member 23a. For example, the second housing member 23b can be connected or attached to a second side (or a second portion) of the housing sidewall 23c by double-sided tape, adhesive, or screws. Therefore, the first housing member 23a, the second housing member 23b, and the housing sidewall 23c can have a box-like shape.

[0427] According to an exemplary embodiment of this disclosure, the support member 17 connected to the vibrating plate 15 can be connected or coupled to the inner surface of the housing 23 via the connecting member 18. For example, the support member 17 can be connected or coupled to the inner surface of the first housing member 23a facing the vibrating plate 15 via the connecting member 18.

[0428] According to an exemplary embodiment of this disclosure, the housing 23 can accommodate or house all the vibration devices 11, adhesive members 12, vibrating plates 15, connecting members 16, and supporting members 17. For example, the connection configuration (or assembly configuration) between the vibration devices 11, adhesive members 12, vibrating plates 15, connecting members 16, and supporting members 17 can be configured as a single element. For example, the connection configuration between the vibration devices 11, adhesive members 12, vibrating plates 15, connecting members 16, and supporting members 17 may be referred to as a sound element, sound device, sound apparatus, sound generating structure, sound generating assembly, vibration element, vibration assembly, vibration generating assembly, or vibration generating structure, etc., but the embodiments of this disclosure are not limited thereto.

[0429] According to an exemplary embodiment of this disclosure, a sound device composed of a combination of a vibrating device 11, an adhesive member 12, a vibrating plate 15, a connecting member 16, and a supporting member 17 can be housed or contained within the internal space 23s of the housing 23. Therefore, the sound device contained within the internal space 23s of the housing 23 can be surrounded by the housing 23, thus protecting the sound device from external impacts. Furthermore, the housing 23 according to the exemplary embodiment of this disclosure can provide an internal space 23s (or an enclosed space) near the vibrating device 11 and the vibrating plate 15; therefore, as described above... Figures 15 to 17 Similar to the described housing 20, housing 23 can retain the impedance component based on the air acting on the diaphragm 15 when the diaphragm 15 vibrates, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords and enhancing the sound quality of the high-pitched vocal cords.

[0430] According to another exemplary embodiment of the present disclosure, the vibration device 10-7 may also include one or more holes 23h for effectively outputting sound generated by the vibration of the vibrating plate 15.

[0431] One or more holes 23h may be provided at the first housing member 23a of the housing 23. One or more holes 23h may be provided at the first housing member 23a of the housing 23 to overlap with the diaphragm 15. For example, one or more holes 23h may be configured to pass through the first housing member 23a of the housing 23 in the thickness (or height) direction Z of the housing 23. One or more holes 23h may serve as a path (or sound path, or sound output path) for outputting sound generated by the vibration of the diaphragm 15 to the outside. Additionally, one or more holes 23h may reduce the pressure (or air pressure) of the internal space 23s of the housing 23, and thus extend the frequency band of the bass band, thereby improving the sound characteristics of the bass band. For example, the pressure (or air pressure) of the internal space 23s of the housing 23 can be reduced by one or more holes 23h, therefore, the vibration displacement (or bending force) of the diaphragm 15 provided in the internal space 23s of the housing 23 can be increased, thereby extending the frequency band of the bass band and the sound characteristics and / or sound pressure level characteristics of the bass band.

[0432] According to another exemplary embodiment of the present disclosure, the vibration device 10-7 may include a hole 23h that overlaps with the vibrating plate 15 and has a size smaller than that of the vibrating plate 15. For example, the hole 23h may have a shape corresponding to the vibrating plate 15, but the embodiments of the present disclosure are not limited thereto. For example, when the vibrating plate 15 has a quadrilateral shape, the hole 23h may have a quadrilateral shape smaller than that of the vibrating plate 15, and the central portion of the hole 23h may be located at or aligned with the central portion of the vibrating plate 15.

[0433] According to another exemplary embodiment of the present disclosure, the vibration device 10-7 may include a plurality of holes 23h, which overlap with the vibrating plate 15 and have a size smaller than that of the vibrating plate 15. For example, each of the plurality of holes 23h may have a circular shape, an oval shape, or a slit shape, but the embodiments of the present disclosure are not limited thereto.

[0434] According to an exemplary embodiment of this disclosure, the plurality of holes 23h may be configured to have specific intervals along one or more of the first direction X and the second direction Y. For example, the plurality of holes 23h may be arranged in a grid or radial form at certain intervals along one or more of the first direction X and the second direction Y, but the embodiments of this disclosure are not limited thereto. For example, each of the plurality of holes 23h may have the same size, but the embodiments of this disclosure are not limited thereto, and may have a size that gradually increases or decreases in the direction from the central portion of the vibrating plate 15 to the peripheral portion of the vibrating plate 15.

[0435] According to an exemplary embodiment of this disclosure, the density per unit area of ​​the plurality of holes 23h can gradually increase in the direction from the central portion of the vibrating plate 15 to the peripheral portion of the vibrating plate 15. For example, when the first housing member 23a includes a first region overlapping the central portion of the vibrating plate 15 and a second region overlapping the peripheral portion of the vibrating plate 15, a sound wave (or vibration) of a first intensity generated based on the vibration of the vibrating plate 15 reaches the first region, and a sound wave (or vibration) of a second intensity less than the first intensity reaches the second region. The density of the plurality of holes 23h disposed in the second region can be greater than the density of the plurality of holes 23h disposed in the first region.

[0436] The vibration device 10-7 according to another exemplary embodiment of the present disclosure may also include one or more elastic connecting members (or one or more connecting members) 22.

[0437] One or more elastic connecting members 22 may be connected between the vibrating plate 15 and the housing 23. For example, one or more elastic connecting members 22 may be connected between the peripheral portion of the vibrating plate 15 and the second housing member 23b of the housing 23. One or more elastic connecting members 22 may be connected to... Figure 16 or Figure 17 The one or more elastic connecting members 22 shown are substantially the same, therefore the same reference numerals denote the same elements, and repeated descriptions thereof may be omitted for the sake of brevity.

[0438] According to another exemplary embodiment of the present disclosure, the vibration device 10-7 may further include a first connecting member connected to a first housing member 23a of the housing 23, a first auxiliary member covering the first connecting member, and a second auxiliary member covering a second housing member 23b of the housing 23.

[0439] The first connecting member may be connected to or coupled to the rear surface of the first housing member 23a. The first connecting member may be coupled to the rear surface of the first housing member 23a by bypassing one or more holes 23h, or may be configured to include one or more other holes overlapping one or more holes 23h, and may be coupled to the rear surface of the first housing member 23a. For example, the first connecting member may be configured to connect or couple the housing 23 or the vibration device 10-5 to either the vibration member or any of the peripheral mechanisms disposed near the vibration member.

[0440] The first auxiliary component can be connected with Figure 1 and Figure 2 The first auxiliary member 10a shown is substantially the same, therefore, for the sake of brevity, its repeated description can be omitted. Except that the second auxiliary member is connected to the second housing member 23b, the second auxiliary member can be... Figure 1 and Figure 2 The second auxiliary component 10b shown is essentially the same, therefore, for the sake of brevity, its repeated description can be omitted.

[0441] According to another exemplary embodiment of this disclosure, the vibration device 10-7 may further include a second connecting member disposed between the second housing member 23b and the second auxiliary member of the housing 23. The second connecting member may be connected to or coupled to the entire front surface of the second housing member 23b. Depending on the connection type (or connection structure) of the vibration device 10-7 to either the vibration member or any of the peripheral mechanisms disposed near the vibration member, one or more of the first and second connecting members may be omitted. For example, when the vibration device 10-7 is connected to or coupled to the vibration member via the first connecting member, the second connecting member may be omitted. Similarly, when the vibration device 10-7 is connected to or coupled to a peripheral mechanism via the second connecting member, the first connecting member may be omitted.

[0442] According to another exemplary embodiment of this disclosure, the vibration device 10-7 may further include a first connecting member connected to a first housing member 23a of the housing 23, a first auxiliary member covering the first connecting member, a second connecting member connected to a second housing member 23b of the housing 23, and a second auxiliary member covering the second connecting member. The first auxiliary member may be the same as described above. Figure 1 and Figure 2 The first auxiliary component 10a is basically the same as described above; therefore, for the sake of brevity, its repeated description can be omitted. The second auxiliary component can be referred to above. Figure 1 and Figure 2 The second auxiliary component 10b described is essentially the same, therefore, for the sake of brevity, its repeated description can be omitted.

[0443] Additionally, in another exemplary embodiment of the vibration device 10-7 according to this disclosure, the housing 23 may further include one or more reinforcing portions disposed at the second housing member 23b. One or more reinforcing portions can enhance the rigidity of the housing 23 and thus better prevent or further minimize vibration (or oscillation or undesired vibration) of the second housing member 23b caused by the vibration of the vibrating plate 15. One or more reinforcing portions may be coupled with… Figure 17 The one or more reinforcing parts provided in the housing 20 shown are substantially the same, therefore, for the sake of brevity, repeated descriptions of them can be omitted.

[0444] In another exemplary embodiment, in the vibration device 10-7 according to another exemplary embodiment of this disclosure, the support member 17 can be referred to above. Figure 9 and Figure 10 The described support member 17 can be replaced or referred to above. Figure 14 The description of support member 17 is substituted for that of the previous description, and for brevity, its repeated description may be omitted. In another exemplary embodiment, in the vibration device 10-7 according to another exemplary embodiment of this disclosure, support member 17 can be referred to above. Figure 13 The description of support member 17 is substituted, and for brevity, its repeated description can be omitted. For example, Figure 13 The support member 17 shown can be connected to the first connecting member 18a. Figure 18 The first housing member 23a of the housing 23 shown can be connected to the second connecting member 18b. Figure 18 The second housing member 23b of the housing 23 shown.

[0445] As described above, in the vibration device 10-7 according to another exemplary embodiment of the present disclosure, each of the vibration device 11, adhesive member 12, vibrating plate 15, connecting member 16, and support member 17 can be housed or accommodated within the internal space 23s of the housing 23. Therefore, damage to the vibration device 11 caused by external impacts can be prevented, and the sound characteristics and / or sound pressure level characteristics of the bass vocal cords can be enhanced. Furthermore, the vibration device 10-7 according to another exemplary embodiment of the present disclosure can be easily assembled with or connected to the support member and / or peripheral mechanisms.

[0446] Figure 19 This is a cross-sectional view showing a vibration device 10-7 according to another exemplary embodiment of the present disclosure. Figure 19 It shows how to use Figure 12 The support member shown is replaced Figure 18The exemplary embodiment is implemented by the support member of the vibration device shown. Therefore, in the following description, elements other than the support member and related elements are indicated by the same reference numerals, and repeated descriptions may be omitted for brevity.

[0447] Reference Figure 19 In another exemplary embodiment of the vibration device 10-7 according to this disclosure, a support member 17 housed in the internal space 23s of the housing 23 can be connected to or coupled to a second housing member 23b of the housing 23. For example, the support member 17 can be connected to or coupled to the inner surface of the second housing member 23b via a connecting member 18. Therefore, the support member 17 can be spaced apart from the first housing member 23a of the housing 23, thereby preventing the generation of noise (or sound) caused by vibration transmitted to the first housing member 23a through the support member 17 when the vibrating plate 15 vibrates.

[0448] The vibration device 10-7 according to another exemplary embodiment of the present disclosure may also include one or more elastic connecting members (or one or more connecting members) 22.

[0449] One or more resilient connecting members 22 may be connected between the support member 17 and the housing 23. For example, one or more resilient connecting members 22 may be connected between the peripheral portion of the support member 17 and the first housing member 23a of the housing 23. In addition to one or more resilient connecting members 22 being connected between the peripheral portion of the support member 17 and the first housing member 23a of the housing 23, one or more resilient connecting members 22 may be connected to... Figure 16 or Figure 18 The elastic connecting members 22 shown are substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, their repeated descriptions can be omitted.

[0450] Additionally, in another exemplary embodiment of the vibration device 10-7 according to this disclosure, the housing 23 may further include one or more reinforcing portions disposed in the second housing member 23b. One or more reinforcing portions can increase the rigidity of the housing 23 and thus further prevent or minimize vibration (or oscillation or undesired vibration) of the second housing member 23b caused by the vibration of the vibrating plate 15. One or more reinforcing portions may be coupled with… Figure 17 The one or more reinforcing parts provided in the housing 20 shown are substantially the same, therefore, for the sake of brevity, repeated descriptions of them can be omitted.

[0451] As mentioned above, similar to the reference above. Figure 18The described vibration device can prevent the vibration device 10-7 according to another exemplary embodiment of this disclosure from being damaged by external impacts, and can enhance the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal cords. Furthermore, the vibration device 10-7 according to another exemplary embodiment of this disclosure can be easily assembled with or connected to a support member and / or peripheral mechanism.

[0452] Figure 20 This is a perspective view showing a vibrating plate 15 according to another exemplary embodiment of the present disclosure. Figure 21 It is along Figure 20 An example of a cross-sectional view taken by line F-F' is shown. Figure 22A and Figure 22B It is along Figure 20 An example of another cross-sectional view taken by line F-F' shown. Figure 20 , Figure 21 , Figure 22A and Figure 22B It shows Figures 9 to 19 The illustrated example is a modified embodiment of the vibrating plate.

[0453] Reference Figure 20 and Figure 21 According to another exemplary embodiment of the present disclosure, the vibrating plate 15 may include a plurality of regions 15A and 15B. For example, the vibration device 11 may overlap with one or more of the plurality of regions 15A and 15B.

[0454] According to another exemplary embodiment of the present disclosure, the vibrating plate 15 may include a first region 15A and a second region 15B.

[0455] The first region 15A may include the central portion of the vibrating plate 15. For example, the first region 15A may include the region where the vibration device 11 is provided. For example, the first region 15A may be referred to as a first rigid region, a flat portion, a flat region, or a vibration region, but the embodiments of this disclosure are not limited thereto.

[0456] The second region 15B may include a peripheral region adjacent to the first region 15A. For example, the second region 15B may include the region between the peripheral portion of the vibrating plate 15 and the first region 15A. The second region 15B may include a region surrounding the first region 15A. The second region 15B may be referred to as a second rigid region, a flexural portion, a non-flat region, a flexural region, a bellows region, an elastic region, a deformable region, a wrinkled region, or a stretchable region, but embodiments of this disclosure are not limited thereto.

[0457] The second region 15B according to an exemplary embodiment of the present disclosure may include one or more flexural portions 15b1 and 15b2. The one or more flexural portions 15b1 and 15b2 may be configured as a closed loop around the first region 15A.

[0458] A second region 15B according to an exemplary embodiment of the present disclosure may include a plurality of flexural portions 15b1 and 15b2 configured in the form of a closed loop surrounding a first region 15A. For example, the second region 15B may include a first flexural portion 15b1 surrounding the first region 15A and a second flexural portion 15b2 surrounding the first flexural portion 15b1. For example, based on one or more flexural portions 15b1 and 15b2, the second region 15B may have a lower rigidity than the first region 15A.

[0459] According to exemplary embodiments of the present disclosure, one or more flexural portions (or multiple flexural portions) 15b1 and 15b2 may protrude above the first surface of the vibrating plate 15 in the second region 15B of the vibrating plate 15 relative to the thickness direction Z of the vibrating plate 15. One or more flexural portions (or multiple flexural portions) 15b1 and 15b2 may protrude convexly to include curved surfaces. For example, the cross-sectional structure of the second region 15B may have a semi-circular or oval shape, but embodiments of the present disclosure are not limited thereto. For example, the first surface of the vibrating plate 15 corresponding to the second region 15B may include one or more protrusions (or projections). The second surface of the vibrating plate 15 corresponding to the second region 15B may include one or more recesses (or depressions).

[0460] According to another exemplary embodiment of this disclosure, one or more flexural portions (or multiple flexural portions) 15b1 and 15b2 may protrude alternately in a direction toward the first and second surfaces of the vibrating plate 15. For example, one or more flexural portions (or multiple flexural portions) 15b1 and 15b2 may have the following characteristics: Figure 22A The waveform shape shown may have, for example, the waveform shape shown. Figure 22B The zigzag line form shown is not limited to this, and embodiments of the present disclosure may include any structure in which the second region 15B can be increased or decreased.

[0461] According to another exemplary embodiment of this disclosure, one or more flexural portions (or multiple flexural portions) 15b1 and 15b2 can deform based on the vibration of the vibrating plate 15 or the vibration of the first region 15A, thereby increasing the length (or area) of the second region 15B. For example, one or more flexural portions (or multiple flexural portions) 15b1 and 15b2 can contract or expand based on the vibration of the first region 15A, thus allowing the vibration of the vibrating plate 15 or the first region 15A to be performed smoothly. In addition, one or more flexural portions (or multiple flexural portions) 15b1 and 15b2 can capture reflected waves reflected from the connecting members connected to the vibrating plate 15.

[0462] According to another exemplary embodiment of the present disclosure, the vibrating plate 15 may include a flexible material for deformation of one or more flexural portions (or multiple flexural portions) 15b1 and 15b2 caused by vibration of the first region 15A. For example, the vibrating plate 15 may include one or more materials such as plastic, fiber, leather, cloth, and paper. For example, the second region 15B of the vibrating plate 15 (i.e., one or more flexural portions (or multiple flexural portions) 15b1 and 15b2) may be realized by a molding process using a mold having a flexural pattern corresponding to one or more flexural portions (or multiple flexural portions) 15b1 and 15b2, but embodiments of the present disclosure are not limited thereto.

[0463] As described above, the vibration displacement (or bending force) of the vibrating plate 15 according to another exemplary embodiment of the present disclosure can be increased by one or more flexural portions 15b1 and 15b2, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the mid-to-low pitch vocal cords generated by the vibration of the vibrating device 11.

[0464] Figure 23 This is a perspective view showing a vibrating plate 15 according to another exemplary embodiment of the present disclosure. Figure 24A It is along Figure 23 The example shown is a cross-sectional view taken by line G-G'. Figure 24B It is along Figure 23 An example of another cross-sectional view taken by line G-G' shown. Figure 23 , Figure 24A and Figure 24B It shows Figures 9 to 19 The modified implementation of the vibrating plate shown is illustrated.

[0465] Reference Figure 23 and Figure 24A According to another exemplary embodiment of the present disclosure, the vibrating plate 15 may include a first plate 15-1 and a second plate 15-2 overlapping the first plate 15-1.

[0466] The first plate 15-1 may include a plate structure with a certain thickness. According to an exemplary embodiment of the present disclosure, the first plate 15-1 may include one or more materials such as plastic, fiber, leather, cloth, and paper.

[0467] The second plate 15-2 can be connected to or coupled to either the first surface of the first plate 15-1 or its second surface opposite the first surface, and can be connected to or coupled to the vibration device 11. The second plate 15-2 may include a plate structure having a thickness and dimensions smaller than those of the first plate 15-1. For example, the second plate 15-2 may be connected to or coupled to the central portion of the first plate 15-1, excluding the peripheral portion. According to another exemplary embodiment of this disclosure, the second plate 15-2 may include one or more materials selected from metallic materials and non-metallic materials (or composite non-metallic materials), but embodiments of this disclosure are not limited thereto. For example, the metallic material of the second plate 15-2 may include any one or more materials selected from stainless steel, aluminum (Al), aluminum alloys, magnesium (Mg), magnesium alloys, and magnesium-lithium (Mg-Li) alloys, but embodiments of this disclosure are not limited thereto. The non-metallic material (or composite non-metallic material) of the second plate 15-2 may include one or more materials selected from plastics, fibers, leather, wood, cloth, and paper, but embodiments of this disclosure are not limited thereto. For example, the second plate 15-2 may include the same or different material as the first plate 15-1.

[0468] According to another exemplary embodiment of the present disclosure, the vibrating plate 15 may include a first region 15A and a second region 15B.

[0469] The first region 15A may include the central portion of the vibrating plate 15. For example, the first region 15A may include the region where the vibration device 11 is provided. The first region 15A may be the region corresponding to the second plate 15-2, or it may be a stacked region of the first plate 15-1 and the second plate 15-2. For example, the first region 15A may be referred to as a first rigid region, a vibration region, or a multi-layer region, but the embodiments of this disclosure are not limited thereto.

[0470] The second region 15B may include the region surrounding the first region 15A. The second region 15B may be included in the peripheral portion of the vibrating plate 15. For example, the second region 15B may include the region between the first region 15A and the peripheral portion of the vibrating plate 15 or the first plate 15-1. The second region 15B may be referred to as a second rigid region, an elastic region, or a single-layer region, but embodiments of this disclosure are not limited thereto.

[0471] The first region 15A of the diaphragm 15 can have higher rigidity than the second region 15B. For example, based on the laminated (or overlapping) structure of the first plate 15-1 and the second plate 15-2, the first region 15A of the diaphragm 15 can have higher rigidity than the second region 15B. Therefore, the first region 15A of the diaphragm 15 can have relatively higher rigidity than the second region 15B, thus preventing or minimizing the splitting vibration (or breaking vibration) of the vibration device 11, thereby enhancing the sound characteristics and / or sound pressure level characteristics generated by the vibration of the vibration device 11.

[0472] The second region 15B of the diaphragm 15 may have a relatively lower rigidity than the first region 15A, and therefore may deform based on the vibration of the vibrating device 11. Thus, the second region 15B of the diaphragm 15 may enable the vibration of the diaphragm 15 or the first region 15A to be performed smoothly, or may increase the amount of vibration displacement (or bending force) of the diaphragm 15 or the first region 15A, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the mid-to-low pitch vocal bands generated based on the vibration of the vibrating device 11 overlapping with the second plate 15-2.

[0473] Reference Figure 24B The vibrating plate according to another exemplary embodiment of the present disclosure may further include a third plate 15-3. The vibrating plate according to another exemplary embodiment of the present disclosure may further include a third plate 15-3 to further increase the rigidity of the first region 15A.

[0474] The third plate 15-3 can be configured to overlap with the second plate 15-2, with the first plate 15-1 located between the second plate 15-2 and the third plate 15-3. For example, when the second plate 15-2 is connected to or coupled to the first surface of the first plate 15-1, the third plate 15-3 can be connected to or coupled to the second surface of the first plate 15-1 opposite to the first surface.

[0475] According to another exemplary embodiment of this disclosure, the third plate 15-3 may include one or more materials selected from metallic materials and non-metallic materials (or composite non-metallic materials), but the embodiments of this disclosure are not limited thereto. For example, the third plate 15-3 may include one or more materials selected from metallic materials and non-metallic materials (or composite non-metallic materials) that are the same as or different from the material of the second plate 15-2.

[0476] Based on the stacked (or overlapping) structure of the first plate 15-1, the second plate 15-2 and the third plate 15-3, the first region 15A of the vibrating plate 15 can have higher rigidity than the second region 15B. Therefore, the split vibration (or fracture vibration) of the vibrating device 11 can be prevented or further minimized, thereby enhancing the sound characteristics and / or sound pressure level characteristics generated by the vibration of the vibrating device 11.

[0477] The second region 15B of the diaphragm 15 may have a relatively lower rigidity than the first region 15A, and therefore may deform more based on the vibration of the vibrating device 11 (e.g., more than the first region 15A). Thus, the second region 15B of the diaphragm 15 may allow the vibration of the diaphragm 15 or the first region 15A to be performed more smoothly, or may further increase the amount of vibration displacement (or bending force) of the diaphragm 15 or the first region 15A, thereby further enhancing the sound characteristics and / or sound pressure level characteristics of the mid-to-low pitch vocal cords generated based on the vibration of the vibrating device 11.

[0478] In addition, Figure 24A and Figure 24B The diagram shows a first region 15A of the vibrating plate 15 configured as a stacked structure (or overlapping structure) of two or three plates. However, embodiments of this disclosure are not limited to this, and the first region 15A of the vibrating plate 15 can be configured as a stacked structure (or overlapping structure) of three or more plates. Therefore, the first region 15A of the vibrating plate 15 can be configured as a stacked structure (or overlapping structure) of two or more plates.

[0479] As described above, in the diaphragm 15 according to another exemplary embodiment of the present disclosure, the rigidity of the first region 15A where the vibrating device 11 is provided can be higher than the rigidity of the second region 15B surrounding the first region 15A of the diaphragm 15. Therefore, the sound characteristics and / or sound pressure level characteristics of the mid-to-low pitch vocal bands generated by the vibration of the vibrating device 11 can be enhanced. For example, the vibrating devices 10-5, 10-6, and 10-7 including the diaphragm 15 according to another exemplary embodiment of the present disclosure can have a sound pressure level of 56 dB to 85 dB in the pitch vocal bands from 200 Hz to 20 kHz, and can output a sound with a flatness of approximately 29 dB.

[0480] Figure 25 This is a perspective view showing a vibrating plate 15 according to another exemplary embodiment of the present disclosure. Figure 26 It is along Figure 25 The cross-sectional view shown is taken by line H-H'. Figure 25 and Figure 26 It shows Figure 23 , Figure 24A , Figure 24B An exemplary embodiment in which the structure of the first plate in the vibrating plate shown is modified.

[0481] Reference Figure 25 and Figure 26 According to another exemplary embodiment of the present disclosure, the vibrating plate 15 may include a first plate 15-1 and a second plate 15-2 overlapping the first plate 15-1.

[0482] The first plate 15-1 may include a plate structure having a certain thickness and including a hollow portion 15h. According to embodiments of the present disclosure, the first plate 15-1 may include one or more materials selected from plastic, fiber, leather, cloth and paper, but embodiments of the present disclosure are not limited thereto.

[0483] The hollow portion 15h of the first plate 15-1 can be positioned at the center of the first plate 15-1. The hollow portion 15h can be configured to have a size larger than that of the vibration device 11 and smaller than that of the second plate 15-2.

[0484] The second plate 15-2 may include a plate structure having a certain thickness and dimensions smaller than that of the first plate 15-1 but larger than that of the hollow portion 15h of the first plate 15-1. For example, the second plate 15-2 may be connected or attached to the central portion of the first plate 15-1 to cover the hollow portion 15h of the first plate 15-1. According to exemplary embodiments of this disclosure, the second plate 15-2 may include one or more materials selected from metallic materials and non-metallic materials (or composite non-metallic materials) having higher rigidity than the first plate 15-1, but embodiments of this disclosure are not limited thereto. For example, the metallic material of the second plate 15-2 may include any one or more materials such as stainless steel, aluminum (Al), aluminum alloy, magnesium (Mg), magnesium alloy, and magnesium-lithium (Mg-Li) alloy, but embodiments of this disclosure are not limited thereto. The non-metallic material (or composite non-metallic material) of the second plate 15-2 may include one or more materials selected from plastics, fibers, leather, wood, cloth, and paper with higher rigidity than the first plate 15-1, but embodiments of this disclosure are not limited thereto.

[0485] According to an exemplary embodiment of the present disclosure, the second plate 15-2 can enhance the mass of the vibrating device 11 and reduce the resonant frequency of the vibrating device 11 based on the increase in mass, thereby increasing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the vibrating device 11, and enhancing the flatness of the sound characteristics.

[0486] According to another exemplary embodiment of the present disclosure, the vibrating plate 15 may include a first region 15A and a second region 15B.

[0487] The first region 15A and the second region 15B may comprise different materials. For example, the first region 15A and the second region 15B may have different rigidities. For example, the first region 15A and the second region 15B may comprise different materials such as metal, plastic, fiber, leather, wood, cloth, and paper, but the embodiments of this disclosure are not limited thereto. The rigidity of each of the first region 15A and the second region 15B may increase in the direction from the peripheral portion of the vibrating plate 15 to the central portion of the vibrating plate 15.

[0488] The first region 15A may include the region where the vibration device 11 is provided. The first region 15A may be the region corresponding to the second plate 15-2, or it may be the region including the hollow portion 15h of the first plate 15-1.

[0489] The second region 15B may include the region surrounding the first region 15A. The second region 15B may be included in the peripheral portion of the vibrating plate 15. For example, the second region 15B may include the region between the first region 15A and the peripheral portion of the first plate 15-1 or the vibrating plate 15.

[0490] The first region 15A of the diaphragm 15 can have higher rigidity than the second region 15B through the second plate. Therefore, the first region 15A of the diaphragm 15 can have relatively higher rigidity than the second region 15B, thus preventing or minimizing the splitting vibration (or cracking vibration) of the vibrating device 11, thereby enhancing the sound characteristics and / or sound pressure level characteristics generated by the vibration of the vibrating device 11. Furthermore, the first region 15A of the diaphragm 15 can increase the mass of the vibrating device 11 to lower the resonant frequency of the vibrating device 11 based on the increase in mass, thus increasing the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the vibrating device 11, and enhancing the flatness of the sound characteristics.

[0491] The second region 15B of the diaphragm 15 may have a relatively lower rigidity than the first region 15A, and therefore may deform based on the vibration of the vibrating device 11. Thus, the second region 15B of the diaphragm 15 may enable the vibration of the diaphragm 15 or the first region 15A to be performed smoothly, or may increase the amount of vibration displacement (or bending force) of the diaphragm 15 or the first region 15A, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the mid-to-low pitch vocal cords generated based on the vibration of the vibrating device 11.

[0492] Additionally, the vibrating plate 15 according to another exemplary embodiment of the present disclosure may further include a third plate 15-3 (dashed line). The vibrating plate 15 according to another exemplary embodiment of the present disclosure may further include a third plate 15-3 (dashed line) to further increase the rigidity of the first region 15A.

[0493] The third plate 15-3 can be configured to overlap with the second plate 15-2, with the first plate 15-1 located between the second plate 15-2 and the third plate 15-3. For example, when the second plate 15-2 is connected to or coupled to the first surface of the first plate 15-1, the third plate 15-3 can be connected to or coupled to the second surface of the first plate 15-1 opposite to the first surface.

[0494] According to another exemplary embodiment of this disclosure, the third plate 15-3 may include one or more materials selected from metallic materials and non-metallic materials (or composite non-metallic materials), but the embodiments of this disclosure are not limited thereto. For example, the third plate 15-3 may include one or more materials selected from metallic materials and non-metallic materials (or composite non-metallic materials) that are the same as or different from the material of the second plate 15-2, but the embodiments of this disclosure are not limited thereto.

[0495] Through the stacked structure (or overlapping structure) of the second plate 15-2 and the third plate 15-3, the first region 15A of the vibrating plate 15 can have higher rigidity than the second region 15B. Therefore, the split vibration (or fracture vibration) of the vibrating device 11 can be prevented or further minimized, thereby further enhancing the sound characteristics and / or sound pressure level characteristics generated by the vibration of the vibrating device 11.

[0496] The second region 15B of the diaphragm 15 may have a relatively lower rigidity than the first region 15A, and therefore may deform more based on the vibration of the vibrating device 11. Thus, the second region 15B of the diaphragm 15 may further enable the vibration of the diaphragm 15 or the first region 15A to be performed more smoothly, or may further increase the vibration displacement (or bending force) of the diaphragm 15 or the first region 15A, thereby further enhancing the sound characteristics and / or sound pressure level characteristics of the mid-to-low pitch vocal cords generated based on the vibration of the vibrating device 11.

[0497] Furthermore, it is shown that the first region 15A of the vibrating plate 15 is configured as a stacked structure (or overlapping structure) of one or two plates; however, embodiments of this disclosure are not limited thereto, and the first region 15A of the vibrating plate 15 can be configured as a stacked structure (or overlapping structure) of three or more plates. Therefore, the first region 15A of the vibrating plate 15 can be configured as a stacked structure (or overlapping structure) of two or more plates.

[0498] As described above, in the diaphragm 15 according to another exemplary embodiment of the present disclosure, the rigidity of the first region 15A where the vibration device 11 is provided can be higher than the rigidity of the second region 15B of the diaphragm 15 surrounding the first region 15A. Therefore, the sound characteristics and / or sound pressure level characteristics of the mid-to-low pitch vocal cords generated by the vibration of the vibration device 11 can be enhanced.

[0499] Figure 27 This is a perspective view showing a vibrating plate 15 according to another exemplary embodiment of the present disclosure. Figure 28 It is along Figure 27 The cross-sectional view shown is taken by line I-I'. Figure 27 and Figure 28 It shows Figure 25 and Figure 28 The exemplary embodiment shown is a modified version of the structure of the first plate in the vibrating plate. Therefore, in the following description, elements other than the first plate and related elements are indicated by the same reference numerals, and repeated descriptions may be omitted for brevity.

[0500] Reference Figure 27 and Figure 28 In another exemplary embodiment of the vibrating plate 15 according to the present disclosure, the first plate 15-1 may include a plate structure with a certain thickness and may include a hollow portion 15h disposed in a first region 15A of the vibrating plate 15, and one or more flexural portions (or multiple flexural portions) 15b1 and 15b2 disposed in a second region 15B of the vibrating plate 15.

[0501] The hollow portion 15h of the first plate 15-1 can be positioned at the center of the first plate 15-1. The hollow portion 15h can be configured to have a size larger than that of the vibration device 11 and smaller than that of the second plate 15-2.

[0502] One or more flexural portions (or multiple flexural portions) 15b1 and 15b2 can be configured as a closed loop around the first region 15A or the hollow portion 15h. For example, the second region 15B may include a first flexural portion 15b1 surrounding the first region 15A and a second flexural portion 15b2 surrounding the first flexural portion 15b1. For example, the second region 15B may have a lower stiffness than the first region 15A due to one or more flexural portions (or multiple flexural portions) 15b1 and 15b2. One or more flexural portions (or multiple flexural portions) 15b1 and 15b2 can be combined with... Figure 21 , Figure 22A and Figure 22B The one or more flexural portions (or multiple flexural portions) 15b1 and 15b2 shown are substantially the same, therefore the same reference numerals denote the same elements, and for the sake of brevity, their repeated descriptions may be omitted.

[0503] One or more flexural portions (or multiple flexural portions) 15b1 and 15b2 can deform based on the vibration of the vibrating device 11. Therefore, the second region 15B of the vibrating plate 15 can enable the vibration of the vibrating plate 15 or the first region 15A to be performed smoothly, or can increase the vibration displacement (or bending force) of the vibrating plate 15 or the first region 15A, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the mid-to-low pitch vocal cords generated based on the vibration of the vibrating device 11.

[0504] As described above, the vibration displacement (or bending force) of the diaphragm 15 according to another exemplary embodiment of the present disclosure can be increased by one or more flexural portions 15b1 and 15b2, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the mid-tone vocal bands generated by the vibration of the vibration device 11. For example, vibration devices 10-5, 10-6, and 10-7 including the diaphragm 15 according to another exemplary embodiment of the present disclosure can have a sound pressure level of 56 dB to 85 dB in the 200 Hz to 20 kHz vocal bands and can output a sound with a flatness of approximately 29 dB.

[0505] Figure 29 A vibration device according to an exemplary embodiment of the present disclosure is shown. Figure 30 It is along Figure 29 The cross-sectional view taken by line J-J' shown in the figure. Figure 31 It shows Figure 30 The piezoelectric vibration component shown. Figures 29 to 31 It shows in Figures 1 to 19 Another exemplary embodiment of the vibration device shown in one or more of the figures.

[0506] Reference Figures 29 to 31 The vibration device 11 according to the exemplary embodiments of this disclosure may be referred to as a flexible vibration structure, flexible vibrator, flexible vibration generating device, flexible vibration generator, flexible sound generator, flexible sound device, flexible sound generating device, flexible sound generator, flexible actuator, flexible loudspeaker, flexible piezoelectric loudspeaker, membrane actuator, membrane piezoelectric composite actuator, membrane loudspeaker, membrane piezoelectric loudspeaker or membrane piezoelectric composite loudspeaker, etc., but the embodiments of this disclosure are not limited thereto.

[0507] The vibration device 11 according to an exemplary embodiment of the present disclosure may include a vibration generating portion having a piezoelectric vibration portion 11a, a first electrode portion 11b, and a second electrode portion 11c.

[0508] The piezoelectric vibrating portion 11a may include a piezoelectric material (or electroactive material) exhibiting a piezoelectric effect. For example, a piezoelectric material may possess the property that when pressure or torsion (or bending) 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 (+) ions and negative (-) ions, and vibration is generated by an electric field based on a reverse voltage applied thereto. The piezoelectric vibrating portion 11a may be referred to as a vibrating layer, piezoelectric layer, piezoelectric material layer, electroactive layer, vibrating portion, piezoelectric material portion, electroactive portion, piezoelectric structure, piezoelectric composite material layer, piezoelectric composite, or piezoelectric ceramic composite, etc., but embodiments of this disclosure are not limited thereto. The piezoelectric vibrating portion 11a may be formed of a transparent, translucent, or opaque piezoelectric material (or electroactive material), and may be transparent, translucent, or opaque.

[0509] The piezoelectric vibrating portion 11a according to an exemplary embodiment of the present disclosure may include a plurality of first portions 11a1 and a plurality of second portions 11a2. For example, the plurality of first portions 11a1 and the plurality of second portions 11a2 may be arranged alternately and repeatedly along a first direction X (or a second direction Y). For example, the first direction X may be the width direction of the piezoelectric vibrating portion 11a, and the second direction Y may be the length direction of the piezoelectric vibrating portion 11a, but the embodiments of the present disclosure are not limited thereto. For example, the first direction X may be the length direction of the piezoelectric vibrating portion 11a, and the second direction Y may be the width direction of the piezoelectric vibrating portion 11a.

[0510] Each of the plurality of first portions 11a1 may be configured as an inorganic material portion. The inorganic material portion may include a piezoelectric material having a piezoelectric effect, a composite piezoelectric material, or an electroactive material. For example, the first portion 11a1 may be referred to as a piezoelectric portion, a piezoelectric material portion, a composite piezoelectric material portion, an active portion, or an electroactive portion, but embodiments of this disclosure are not limited thereto.

[0511] Each of the plurality of first portions 11a1 can be configured as a ceramic matrix material for generating relatively high vibrations, or can be configured as a piezoelectric ceramic having a perovskite crystal structure. The perovskite crystal structure can exhibit both piezoelectric and inverse piezoelectric effects, and can be an oriented 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 an anion. For example, each of the plurality of first portions 11a1 can include one of lead(II) titanate (PbTiO3), lead zirconate (PbZrO3), lead zirconate titanate (PbZrTiO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3), but embodiments of this disclosure are not limited thereto.

[0512] The first portion 11a1 of the piezoelectric vibration portion 11a according to an exemplary embodiment of the present disclosure may include a lead zirconate titanate (PZT) based material, which includes lead (Pb), zirconium (Zr), and titanium (Ti); or it may include a lead nickel zirconate (PZNN) based material, which includes lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but the embodiments of the present disclosure are not limited thereto. Furthermore, the first portion 11a1 of the piezoelectric vibration portion 11a may include at least one or more of calcium titanate (CaTiO3), BaTiO3, and SrTiO3 that do not contain lead (Pb), but the embodiments of the present disclosure are not limited thereto.

[0513] Each of the plurality of first portions 11a1 according to exemplary embodiments of the present disclosure may be disposed between a plurality of second portions 11a2 and may have a first width W1 parallel to a first direction X (or a second direction Y) and a length parallel to a second direction Y (or a first direction X). Each of the plurality of second portions 11a2 may have a second width W2 parallel to the first direction X (or a second direction Y) and may have a length parallel to the second direction Y (or a first direction X). The first width W1 may be the same as or different from the second width W2. For example, the first width W1 may be greater than the second width W2. For example, the first portions 11a1 and the second portions 11a2 may include linear or strip shapes having the same or different dimensions. Therefore, the piezoelectric vibrating portion 11a may include a 2-2 composite structure with piezoelectric properties having 2-2 vibration modes, and thus the piezoelectric vibrating portion 11a may have a resonant frequency of 20 kHz or lower, but embodiments of the present disclosure are not limited thereto. For example, the resonant frequency of the piezoelectric vibrating portion 11a may vary based on at least one or more of the shape, length, and thickness, etc.

[0514] In the piezoelectric vibrating section 11a, each of the plurality of first portions 11a1 and the plurality of second portions 11a2 can be arranged (or arranged) in parallel on the same plane (or the same layer). Each of the plurality of second portions 11a2 can be configured to fill the gap between two adjacent first portions of the plurality of first portions 11a1, and can be connected or attached to the adjacent second portion 11a2. Therefore, the piezoelectric vibrating section 11a can extend to a desired size or length based on the lateral connection (or connection) between the first portions 11a1 and the second portions 11a2.

[0515] In the piezoelectric vibration section 11a, the width (or dimension) W2 of each of the plurality of second sections 11a2 may gradually decrease in the direction from the central portion of the piezoelectric vibration section 11a or the vibration device 11 to the two peripheries (or ends).

[0516] According to an exemplary embodiment of this disclosure, the second portion 11a2 with the largest width W2 among the plurality of second portions 11a2 can be located at the portion where the highest stress can concentrate when the piezoelectric vibrating portion 11a or the vibrating device 11 vibrates in the vertical direction Z (or the thickness direction). The second portion 11a2 with the smallest width W2 among the plurality of second portions 11a2 can be located at the portion where relatively low stress may occur when the piezoelectric vibrating portion 11a or the vibrating device 11 vibrates in the vertical direction Z. For example, the second portion 11a2 with the largest width W2 among the plurality of second portions 11a2 can be located at the central portion of the piezoelectric vibrating portion 11a, and the second portion 11a2 with the smallest width W2 among the plurality of second portions 11a2 can be located at each of the two peripheries of the piezoelectric vibrating portion 11a. Therefore, when the piezoelectric vibrating portion 11a or the vibrating device 11 vibrates in the vertical direction Z, interference of sound waves that all occur in the portion where the highest stress is concentrated or overlap of resonant frequencies can be reduced or minimized. Therefore, it can reduce the dip phenomenon in the sound pressure level in the low-pitched vocal cords, thereby improving the flatness of the sound characteristics in the low-pitched vocal cords.

[0517] In the piezoelectric vibration section 11a, each of the plurality of first portions 11a1 may have a different size (or width). For example, the size (or width) of each of the plurality of first portions 11a1 may gradually decrease or increase in the direction from the central portion of the piezoelectric vibration section 11a or the vibration device 11 to the two peripheries (or ends). For example, in the piezoelectric vibration section 11a, based on the various inherent vibration frequencies of the vibrations of each of the plurality of first portions 11a1 with different sizes, the sound pressure level characteristics of the sound can be enhanced, and the sound reproduction frequency band can be increased or extended.

[0518] Multiple second portions 11a2 can be disposed between multiple first portions 11a1. Therefore, in the piezoelectric vibration portion 11a or vibration device 11, the vibrational energy of the links in a unit cell of the first portion 11a1 can be increased by the corresponding second portion 11a2, thereby increasing the vibrational characteristics and ensuring piezoelectric properties and flexibility. For example, the second portion 11a2 may comprise one or more of epoxy-based polymers, acrylic polymers, and silicone polymers, but embodiments of this disclosure are not limited thereto.

[0519] According to exemplary embodiments of the present disclosure, multiple second portions 11a2 can be configured as organic material portions. For example, the organic material portions can be disposed between the inorganic material portions and thus can absorb impacts applied to the inorganic material portions (or the first portions), can release stress concentrated on the inorganic material portions to enhance the overall durability of the piezoelectric vibrating portion 11a or the vibration device 11, and can provide flexibility to the piezoelectric vibrating portion 11a or the vibration device 11.

[0520] According to exemplary embodiments of this disclosure, multiple second portions 11a2 may have a lower modulus (or Young's modulus) and viscoelasticity than each first portion 11a1. Therefore, the second portions 11a2 may improve the reliability of each first portion 11a1, which is susceptible to impact due to its brittle nature. For example, the second portions 11a2 may be configured as a material having a loss coefficient of about 0.01 to about 1 and a modulus of about 0.1 GPa to about 10 GPa.

[0521] The organic material portion disposed at the second portion 11a2 may include one or more of organic materials, organic polymers, organic piezoelectric materials, or organic non-piezoelectric materials that have flexible properties compared to the inorganic material portion of the first portion 11a1. For example, the second portion 11a2 may be referred to as an adhesive portion, elastic portion, bending portion, damping portion, or flexible portion that is flexible, but embodiments of this disclosure are not limited thereto.

[0522] Multiple first portions 11a1 and second portions 11a2 can be disposed (or connected) on the same plane, thus, the piezoelectric vibrating portion 11a according to an exemplary embodiment of the present disclosure can have a single-film type. For example, the piezoelectric vibrating portion 11a can have a structure in which multiple first portions 11a1 are connected to one side (or a portion). For example, multiple first portions 11a1 can have a structure connected to the entire piezoelectric vibrating portion 11a. For example, the piezoelectric vibrating portion 11a can vibrate vertically by first portions 11a1 having vibrational characteristics, and can be bent into a curved shape by second portions 11a2 having flexibility. In addition, in the piezoelectric vibrating portion 11a according to an exemplary embodiment of the present disclosure, the dimensions of the first portions 11a1 and the second portions 11a2 can be adjusted based on the piezoelectric characteristics and flexibility required by the piezoelectric vibrating portion 11a or the vibrating device 11. As an exemplary embodiment of the present disclosure, when the piezoelectric vibrating portion 11a requires piezoelectric characteristics rather than flexibility, the dimensions of the first portions 11a1 can be adjusted to be larger than the dimensions of the second portions 11a2. As another exemplary embodiment of this disclosure, when the piezoelectric vibrating portion 11a requires flexibility rather than piezoelectric properties, the size of the second portion 11a2 can be adjusted to be larger than the size of the first portion 11a1. Therefore, the size of the piezoelectric vibrating portion 11a can be adjusted based on the required characteristics of the piezoelectric vibrating portion 11a, thus the piezoelectric vibrating portion 11a can be easily designed.

[0523] The first electrode portion 11b may be disposed on the first surface (or upper surface) of the piezoelectric vibration portion 11a. The first electrode portion 11b may be commonly disposed on or connected to the first surface of each of the plurality of first portions 11a1 and the first surface of each of the plurality of second portions 11a2, and may be electrically connected to the first surface of each of the plurality of first portions 11a1. For example, the first electrode portion 11b may be in the shape of a single electrode (or a common electrode) disposed on the entire first surface of the piezoelectric vibration portion 11a. For example, the first electrode portion 11b may have the same shape as the piezoelectric vibration portion 11a, but embodiments of this disclosure are not limited thereto.

[0524] The first electrode portion 11b according to an exemplary embodiment of this disclosure may be formed of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the transparent or semi-transparent conductive material may include indium tin oxide (ITO) or indium zinc oxide (IZO), but 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., but embodiments of this disclosure are not limited thereto.

[0525] The second electrode portion 11c may be disposed on a second surface (or rear surface) of the piezoelectric vibrating portion 11a that is different from (or opposite to) the first surface. The second electrode portion 11c may be commonly disposed on or connected to the second surfaces of each of the plurality of first portions 11a1 and each of the plurality of second portions 11a2, and may be electrically connected to the second surfaces of each of the plurality of first portions 11a1. For example, the second electrode portion 11c may be in the shape of a single electrode (or a common electrode) disposed on the entire second surface of the piezoelectric vibrating portion 11a. The second electrode portion 11c may have the same shape as the piezoelectric vibrating portion 11a, but embodiments of this disclosure are not limited thereto. According to exemplary embodiments of this disclosure, the second electrode portion 11c may be formed of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode portion 11c may be formed of the same material as the first electrode portion 11b, but embodiments of this disclosure are not limited thereto. As another exemplary embodiment of this disclosure, the second electrode portion 11c may be formed of a different material than the first electrode portion 11b.

[0526] The piezoelectric vibrating portion 11a can be polarized (or polarized) by applying a specific voltage to the first electrode portion 11b and the second electrode portion 11c in a specific temperature atmosphere or in a temperature atmosphere that can change from high temperature to room temperature, but the embodiments disclosed herein are not limited thereto. For example, the piezoelectric vibrating portion 11a can vibrate based on an externally applied sound signal (or speech signal) to the first electrode portion 11b and the second electrode portion 11c, alternatingly contracting and expanding based on the inverse piezoelectric effect. For example, the piezoelectric vibrating portion 11a can vibrate based on vertical vibration d33 and planar vibration d31 of the first electrode portion 11b and the second electrode portion 11c. The piezoelectric vibrating portion 11a can further improve vibration by increasing the displacement of the vibrating member (or vibrating plate or vibrating object) through planar contraction and expansion.

[0527] The vibration device 11 according to an exemplary embodiment of the present disclosure may further include a first cover member 11d and a second cover member 11e.

[0528] The first cover member 11d may be disposed on the first surface of the vibration device 11. For example, the first cover member 11d may be configured to cover the first electrode portion 11b. Therefore, the first cover member 11d may protect the first electrode portion 11b and / or the piezoelectric vibration portion 11a.

[0529] The second cover member 11e may be disposed on the second surface of the vibration device 11. For example, the second cover member 11e may be configured to cover the second electrode portion 11c. Therefore, the second cover member 11e may protect the second electrode portion 11c and / or the piezoelectric vibration portion 11a.

[0530] The first cover member 11d and the second cover member 11e according to exemplary embodiments of the present disclosure may each comprise one or more materials, including plastic, fiber, and wood, but embodiments of the present disclosure are not limited thereto. For example, each of the first cover member 11d and the second cover member 11e may comprise the same or different materials. For example, each of the first cover member 11d and the second cover member 11e may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of the present disclosure are not limited thereto.

[0531] According to an exemplary embodiment of the present disclosure, the first cover member 11d can be connected or coupled to the first electrode portion 11b via the first adhesive layer 11f. For example, the first cover member 11d can be connected or coupled to the first electrode portion 11b via a film lamination process using the first adhesive layer 11f.

[0532] According to an exemplary embodiment of the present disclosure, the second cover member 11e can be connected or coupled to the second electrode portion 11c via the second adhesive layer 11g. For example, the second cover member 11e can be connected or coupled to the second electrode portion 11c via a film lamination process using the second adhesive layer 11g.

[0533] A first adhesive layer 11f may be disposed between the first electrode portion 11b and the first cover member 11d. A second adhesive layer 11g may be disposed between the second electrode portion 11c and the second cover member 11e. For example, the first adhesive layer 11f and the second adhesive layer 11g may be disposed between the first cover member 11d and the second cover member 11e to completely surround the piezoelectric vibrating portion 11a, the first electrode portion 11b, and the second electrode portion 11c. For example, the piezoelectric vibrating portion 11a, the first electrode portion 11b, and the second electrode portion 11c may be embedded or built into the first adhesive layer 11f and the second adhesive layer 11g.

[0534] Each of the first adhesive layer 11f and the second adhesive layer 11g according to exemplary embodiments of the present disclosure may include an electrically insulating material that is viscous and capable of compression and decompression. For example, each of the first adhesive layer 11f and the second adhesive layer 11g may include an epoxy resin, an acrylic resin, a silicone resin, or a polyurethane resin, but embodiments of the present disclosure are not limited thereto.

[0535] According to an exemplary embodiment of this disclosure, either the first cover member 11d or the second cover member 11e can be attached to or coupled to a vibrating member (or vibrating plate or vibrating object) by an adhesive member. For example, either the first cover member 11d or the second cover member 11e can be attached to or coupled to a vibrating member (or vibrating plate or vibrating object) by referring to the above description. Figures 1 to 8 The described adhesive member 12 is attached to or connected to a vibrating member (or vibrating plate or vibrating object), or can be attached to or connected to a vibrating member (or vibrating plate or vibrating object) as described above. Figures 9 to 19 The described adhesive component 12 is attached to or connected to the vibrating plate.

[0536] The vibration device 11 according to an exemplary embodiment of the present disclosure may further include a first power line PL1, a second power line PL2, and a pad portion 11p.

[0537] A first power line PL1 may be disposed between the first electrode portion 11b and the first cover member 11d, and may be electrically connected to the first electrode portion 11b. For example, the first power line PL1 may be disposed at the first cover member 11d. The first power line PL1 may extend a considerable length in the second direction Y and may be electrically connected to the central portion of the first electrode portion 11b. As an exemplary embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode portion 11b via an anisotropic conductive film. As another exemplary embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode portion 11b via a conductive material (or particles) included in the first adhesive layer 11f.

[0538] The second power line PL2 can be disposed between the second electrode portion 11c and the second cover member 11e, and can be electrically connected to the second electrode portion 11c. For example, the second power line PL2 can be disposed at the second cover member 11e. The second power line PL2 can extend a considerable length along the second direction Y and can be electrically connected to the central portion of the second electrode portion 11c. As an exemplary embodiment of this disclosure, the second power line PL2 can be electrically connected to the second electrode portion 11c 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 portion 11c through a conductive material (or particles) included in the second adhesive layer 11g. For example, the second power line PL2 can be configured not to overlap with the first power line PL1. When the second power line PL2 is configured not to overlap with the first power line PL1, a short circuit (or short circuit between) between the first power line PL1 and the second power line PL2 can be prevented.

[0539] The pad portion 11p can be configured to be electrically connected to the first power line PL1 and the second power line PL2. The pad portion 11p can be configured at a peripheral portion of either the first cover member 11d or the second cover member 11e to be electrically connected to a portion (or an end) of each of the first power line PL1 and the second power line PL2.

[0540] According to an exemplary embodiment of the present disclosure, the pad portion 11p may include a first pad electrode electrically connected to one end of a first power line PL1 and a second pad electrode electrically connected to one end of a second power line PL2.

[0541] The first pad electrode may be disposed at a peripheral portion of either the first cover member 11d or the second cover member 11e, for electrical connection to a portion of the first power line PL1. For example, the first pad electrode may pass through either the first cover member 11d or the second cover member 11e and may be electrically connected to a portion of the first power line PL1.

[0542] The second pad electrode may be arranged parallel to the first pad electrode and may be electrically connected to a portion of the second power line PL2. For example, the second pad electrode may pass through either the first cover member 11d or the second cover member 11e and may be electrically connected to a portion of the second power line PL2.

[0543] According to an exemplary embodiment of this disclosure, each of the first power line PL1, the second power line PL2, and the pad portion 11p can be configured to be transparent, semi-transparent, or opaque.

[0544] According to another exemplary embodiment of this disclosure, the pad portion 11p can be electrically connected to the signal cable 30.

[0545] The signal cable 30 can be electrically connected to the pad portion 11p disposed at the vibration device 11, and can provide the vibration device 11 with a vibration drive signal (or sound signal or voice signal) provided from the sound processing circuit. According to an exemplary embodiment of this disclosure, the signal cable 30 may include a first terminal electrically connected to a first pad electrode of the pad portion 11p and a second terminal electrically connected to a second pad electrode of the pad portion 11p. For example, the signal cable 30 may be configured as a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multilayer printed circuit, or a flexible multilayer printed circuit board, but embodiments of this disclosure are not limited thereto.

[0546] The sound processing circuit can generate an AC vibration drive signal, including a first vibration drive signal and a second vibration drive signal, based on sound data provided by an external sound data generation circuit component. The first vibration drive signal can be either a positive (+) vibration drive signal or a negative (-) vibration drive signal, and the second vibration drive signal can also be either a positive (+) vibration drive signal or a negative (-) vibration drive signal. For example, the first vibration drive signal can be provided to the first electrode portion 11b via the first terminal of the signal cable 30, the first pad electrode of the pad portion 11p, and the first power line PL1. The second vibration drive signal can be provided to the second electrode portion 11c via the second terminal of the signal cable 30, the second pad electrode of the pad portion 11p, and the second power line PL2.

[0547] According to an exemplary embodiment of this disclosure, the signal cable 30 may be configured to be transparent, semi-transparent, or opaque.

[0548] As described above, the vibration device 11 according to the exemplary embodiment of this disclosure can be implemented as a thin film with a first portion 11a1 having piezoelectric properties and a second portion 11a2 having flexibility, which are alternately repeated and connected, and thus can be bent into a shape corresponding to the shape of the vibrating member or vibrating object. For example, when the vibration device 11 is connected or coupled to a vibrating member including various curved portions by an adhesive member, the vibration device 11 can be bent into a curved shape along the shape of the curved portion of the vibrating member, and even when bent into a curved shape, the reliability against damage or breakage is not reduced. In addition, the vibration device 11 according to the exemplary embodiment of this disclosure can have a modulus larger than that of the adhesive member, and therefore, the vibrating member including various curved portions can be easily vibrated. Therefore, the reliability of sound reproduction can be enhanced, and the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the vibrating member can be enhanced.

[0549] Figures 32A to 32D This is a perspective view showing a piezoelectric vibration portion of a vibration device according to other exemplary embodiments of the present disclosure, in an exemplary embodiment of the present disclosure.

[0550] Reference Figure 32A According to another exemplary embodiment of the present disclosure, the piezoelectric vibration portion 11a may include a plurality of first portions 11a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion 11a2 (or one or more second portions) disposed between the plurality of first portions 11a1.

[0551] Each of the plurality of first portions 11a1 can be configured to be spaced apart from each other along a first direction X and a second direction Y. For example, each of the plurality of first portions 11a1 can have a hexahedral shape (or a hexahedral object shape) having the same dimensions, and can be arranged in a grid shape. Each of the plurality of first portions 11a1 can include elements referenced above. Figures 29 to 31 The first part 11a1 describes essentially the same piezoelectric material; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0552] The second portion 11a2 may be disposed between the plurality of first portions 11a1 along each of the first direction X and the second direction Y. The second portion 11a2 may be configured to fill the gap or space between two adjacent first portions 11a1 or to surround each of the plurality of first portions 11a1, and thus may be connected to or adhered to adjacent first portions 11a1. According to an exemplary embodiment of this disclosure, the width of the second portion 11a2 disposed between two first portions 11a1 adjacent to each other along the first direction X may be the same as or different from the width of the first portions 11a1, and the width of the second portion 11a2 disposed between two first portions 11a1 adjacent to each other along the second direction Y may be the same as or different from the width of the first portions 11a1. The second portion 11a2 may include, as referenced above... Figures 29 to 31 The second part 11a2 describes essentially the same organic materials; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0553] As described above, the piezoelectric vibration portion 11a according to another exemplary embodiment of the present disclosure may include a 1-3 composite structure having piezoelectric characteristics with 1-3 vibration modes. Therefore, the piezoelectric vibration portion 11a may have a resonant frequency of 30 MHz or lower, but the embodiments of the present disclosure are not limited thereto. For example, the resonant frequency of the piezoelectric vibration portion 11a may vary based on at least one or more of the shape, length, and thickness.

[0554] Reference Figure 32B According to another exemplary embodiment of the present disclosure, the piezoelectric vibration portion 11a may include a plurality of first portions 11a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion (or one or more second portions) 11a2 disposed between the plurality of first portions 11a1.

[0555] Each of the plurality of first portions 11a1 may have a flat structure with a circular shape. For example, each of the plurality of first portions 11a1 may have a circular plate shape, but embodiments of this disclosure are not limited thereto. For example, each of the plurality of first portions 11a1 may have a dotted shape including an oval shape, a polygonal shape, or a ring shape. Each of the plurality of first portions 11a1 may include the same as described above. Figures 29 to 31 The first part 11a1 describes essentially the same piezoelectric material; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0556] The second portion 11a2 may be disposed between the plurality of first portions 11a1 along each of the first direction X and the second direction Y. The second portion 11a2 may be configured to surround each of the plurality of first portions 11a1, and thus may be connected to or adhered to the side surface of each of the plurality of first portions 11a1. Each of the plurality of first portions 11a1 and the second portion 11a2 may be disposed (or arranged) in parallel on the same plane (or the same layer). The second portion 11a2 may include elements referenced above. Figures 29 to 31 The second part 11a2 describes essentially the same organic materials; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0557] Reference Figure 32C According to another exemplary embodiment of the present disclosure, the piezoelectric vibration portion 11a may include a plurality of first portions 11a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion (or one or more second portions) 11a2 disposed between the plurality of first portions 11a1.

[0558] Each of the plurality of first portions 11a1 may have a flat structure in the shape of a triangle. For example, each of the plurality of first portions 11a1 may have a triangular plate shape, but embodiments of this disclosure are not limited thereto. Each of the plurality of first portions 11a1 may include the same as those referenced above. Figures 29 to 31 The first part 11a1 describes essentially the same piezoelectric material; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0559] According to an exemplary embodiment of this disclosure, four adjacent first portions 11a1 of a plurality of first portions 11a1 may be adjacent to each other to form a quadrilateral (or a square shape or a rectangular shape). The vertices of the four adjacent first portions 11a1 forming the quadrilateral shape may be adjacent to each other in the central portion (or center portion) of the quadrilateral shape.

[0560] The second portion 11a2 may be disposed between the plurality of first portions 11a1 along each of the first direction X and the second direction Y. The second portion 11a2 may be configured to surround each of the plurality of first portions 11a1, and thus may be connected to or adhered to the side surface of each of the plurality of first portions 11a1. Each of the plurality of first portions 11a1 and the second portion 11a2 may be disposed (or arranged) in parallel on the same plane (or the same layer). The second portion 11a2 may include elements referenced above. Figures 29 to 31 The second part 11a2 describes essentially the same organic materials; therefore, the same reference numerals denote the same elements, and for the sake of brevity, their repeated descriptions may be omitted.

[0561] Reference Figure 32D According to another exemplary embodiment of the present disclosure, the piezoelectric vibration portion 11a may include a plurality of first portions 11a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion (or one or more second portions) 11a2 disposed between the plurality of first portions 11a1.

[0562] Each of the plurality of first portions 11a1 may have a flat structure in the shape of a triangle. For example, each of the plurality of first portions 11a1 may have a triangular plate shape, but embodiments of this disclosure are not limited thereto. Each of the plurality of first portions 11a1 may include the same as those referenced above. Figures 29 to 31 The first part 11a1 describes essentially the same piezoelectric material; therefore, the same reference numerals denote the same elements, and for the sake of brevity, their repeated descriptions can be omitted.

[0563] According to another exemplary embodiment of this disclosure, six adjacent first portions 11a1 of a plurality of first portions 11a1 may be adjacent to each other to form a hexagonal shape (or a regular hexagonal shape). The vertices of the six adjacent first portions 11a1 forming the hexagonal shape may be adjacent to each other in the central portion (or center portion) of the hexagonal shape.

[0564] The second portion 11a2 may be disposed between the plurality of first portions 11a1 along each of the first direction X and the second direction Y. The second portion 11a2 may be configured to surround each of the plurality of first portions 11a1, and thus may be connected to or adhered to the side surface of each of the plurality of first portions 11a1. Each of the plurality of first portions 11a1 and the second portion 11a2 may be disposed (or arranged) in parallel on the same plane (or the same layer). The second portion 11a2 may include elements referenced above. Figures 29 to 31The second part 11a2 describes essentially the same organic materials; therefore, the same reference numerals denote the same elements, and for the sake of brevity, their repeated descriptions may be omitted.

[0565] Figure 33 A vibration device according to another exemplary embodiment of the present disclosure is shown. Figure 34 It is along Figure 33 The cross-sectional view shown is taken by line K-K'. Figures 33 to 34 It shows in Figures 1 to 19 Another exemplary embodiment of the vibration device shown in one or more of the figures is modified.

[0566] Reference Figure 33 and Figure 34 According to another exemplary embodiment of the present disclosure, the vibration device 11 may include a first vibration generating portion 11-1 and a second vibration generating portion 11-2.

[0567] The first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be electrically separated and arranged while being spaced apart from each other along the first direction X. The first vibration generating portion 11-1 and the second vibration generating portion 11-2 can alternately and repeatedly contract and / or expand to vibrate based on the piezoelectric effect. For example, the first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be arranged or laid flat along the first direction X at a certain interval (or distance) D1. Therefore, the vibration device 11 with the first vibration generating portion 11-1 and the second vibration generating portion 11-2 laid flat can be a vibration array, a vibration array portion, a vibration module array portion, a vibration array structure, a flat vibration array, a flat vibration array module, or a flat vibration membrane, but the embodiments of this disclosure are not limited thereto.

[0568] Each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 according to an exemplary embodiment of the present disclosure may have a quadrilateral shape. For example, each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 may have a quadrilateral shape with a width of approximately 5 cm or greater. For example, each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 may have a square shape with dimensions of 5 cm × 5 cm or greater, but the embodiments of the present disclosure are not limited thereto.

[0569] Each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be arranged or laid flat on the same plane. Therefore, the vibration device 11 can have an enlarged area by laying flat the first vibration generating portion 11-1 and the second vibration generating portion 11-2, which have relatively small dimensions.

[0570] Each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be arranged or laid out at a certain interval (or distance) D1, thus enabling it to be driven as a complete unit rather than an independently driven vibration device (or a single vibration device). According to an exemplary embodiment of this disclosure, the first separation distance (or first distance or first interval) D1 between the first vibration generating portion 11-1 and the second vibration generating portion 11-2 relative to the first direction X can be 0.1 mm or greater and less than 3 cm, but embodiments of this disclosure are not limited thereto.

[0571] According to an exemplary embodiment of this disclosure, each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be arranged or tiled with a first separation distance (or interval) D1 of 0.1 mm or greater and less than 3 cm. Therefore, it can be driven as a vibration device to increase the reproduction frequency band of the sound generated by interconnecting the individual vibrations of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 and improve the sound pressure level characteristics. For example, the first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be arranged with an interval D1 of 0.1 mm or greater and less than 5 mm to increase the reproduction frequency band of the sound generated by interconnecting the individual vibrations of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 and to increase the sound of the low-pitched vocal bands (e.g., sound pressure level characteristics at 500 Hz or lower).

[0572] According to an exemplary embodiment of this disclosure, when the first vibration generating portion 11-1 and the second vibration generating portion 11-2 are provided with a first separation distance (or interval) D1 of less than 0.1 mm or without a first separation distance (or interval) D1, the reliability of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 or the vibration device 11 may be reduced due to damage or cracks caused by the physical contact between them when each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 vibrates.

[0573] According to an exemplary embodiment of this disclosure, when the first vibration generating portion 11-1 and the second vibration generating portion 11-2 are set with a first separation distance (or interval) D1 of 3 cm or greater, the first vibration generating portion 11-1 and the second vibration generating portion 11-2 may not be driven as a vibration device due to the independent vibration of each of them. Therefore, the reproduction frequency band and sound pressure level characteristics of the sound generated by the vibration of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 may be reduced. For example, when the first vibration generating portion 11-1 and the second vibration generating portion 11-2 are set with a first separation distance (or interval) D1 of 3 cm or greater, the sound characteristics and sound pressure level characteristics of the low-pitched vocal band (e.g., 500 Hz or less) may both be reduced.

[0574] According to an exemplary embodiment of this disclosure, when the first vibration generating portion 11-1 and the second vibration generating portion 11-2 are arranged at a 5mm interval, each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 may not be able to be driven as a vibration device. Therefore, the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords (e.g., 200Hz or lower) may be reduced.

[0575] According to another exemplary embodiment of this disclosure, when the first vibration generating portion 11-1 and the second vibration generating portion 11-2 are arranged at a 1mm interval, the first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be driven as a vibration device. Therefore, the sound reproduction frequency band can be increased, and the sound of the low-pitched vocal band (e.g., sound pressure level characteristics at 500Hz or lower) can be increased. For example, when the first vibration generating portion 11-1 and the second vibration generating portion 11-2 are arranged at a 1mm interval, the vibration device 11 can be implemented as a large-area vibrator that is expanded based on the optimization of the separation distance between the first vibration generating portion 11-1 and the second vibration generating portion 11-2. Therefore, the vibration device 11 can be driven as a large-area vibrator based on the individual vibrations of the first vibration generating portion 11-1 and the second vibration generating portion 11-2. Thus, the sound characteristics and sound pressure level characteristics in the low-pitched vocal band of the sound generated by the large-area vibration of the interconnected vibration devices 11 can be increased, or the reproduction frequency band can be enhanced.

[0576] Therefore, in order to achieve individual vibration (or a single vibration device) of the first vibration generating part 11-1 and the second vibration generating part 11-2, the first separation distance D1 between the first vibration generating part 11-1 and the second vibration generating part 11-2 can be adjusted to 0.1 mm or more and less than 3 cm. Furthermore, in order to achieve individual vibration (or a single vibration device) of the first vibration generating part 11-1 and the second vibration generating part 11-2, and in order to improve the sound pressure level characteristics of the low-pitched vocal cords, the first separation distance D1 between the first vibration generating part 11-1 and the second vibration generating part 11-2 can be adjusted to 0.1 mm or more and less than 5 mm.

[0577] Each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 according to an exemplary embodiment of the present disclosure may include a piezoelectric vibration portion 11a, a first electrode portion 11b, and a second electrode portion 11c.

[0578] The piezoelectric vibration portion 11a of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 may include a piezoelectric material (or an electroactive material) having a piezoelectric effect. For example, the piezoelectric vibration portion 11a of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 may be configured to be similar to the above-mentioned... Figure 31 and Figures 32A to 32D Any of the piezoelectric vibration parts 11a described are substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions thereof may be omitted.

[0579] According to an exemplary embodiment of this disclosure, each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 may include the above-mentioned references. Figure 31 and Figures 32A to 32D The piezoelectric vibration portion 11a described may be any one of the piezoelectric vibration portions 11a, or may include different piezoelectric vibration portions 11a.

[0580] The first electrode portion 11b can be disposed on the first surface of the piezoelectric vibration portion 11a and can be electrically connected to the first surface of the piezoelectric vibration portion 11a. For example, the first electrode portion 11b can be as described above. Figure 30 The first electrode portion 11b described is substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of it may be omitted.

[0581] The second electrode portion 11c can be disposed on the second surface of the piezoelectric vibration portion 11a and electrically connected to the second surface of the piezoelectric vibration portion 11a. The second electrode portion 11c can be referenced above. Figure 30The second electrode portion 11c described is substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of it may be omitted.

[0582] The vibration device 11 according to an exemplary embodiment of the present disclosure may further include a first cover member 11d and a second cover member 11e.

[0583] The first cover member 11d may be disposed on the first surface of the vibration device 11. For example, the first cover member 11d may cover the first electrode portion 11b disposed on the first surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2. Therefore, the first cover member 11d may be connected to the first surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2, or may support the first surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2. Thus, the first cover member 11d may protect the first surface or the first electrode portion 11b of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2.

[0584] The second cover member 11e may be disposed on the second surface of the vibration device 11. For example, the second cover member 11e may cover the second electrode portion 11c disposed on the second surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2. Therefore, the second cover member 11e may be connected to the second surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2, or may support the second surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2. Thus, the second cover member 11e may protect the second surface or the second electrode portion 11c of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2.

[0585] The first cover member 11d and the second cover member 11e according to exemplary embodiments of the present disclosure may each comprise one or more materials such as plastic, fiber, and wood, but embodiments of the present disclosure are not limited thereto. For example, each of the first cover member 11d and the second cover member 11e may comprise the same material or different materials. For example, each of the first cover member 11d and the second cover member 11e may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of the present disclosure are not limited thereto.

[0586] According to an exemplary embodiment of the present disclosure, the first cover member 11d can be disposed on the first surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 via a first adhesive layer 11f. For example, the first cover member 11d can be directly disposed on the first surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 via a film lamination process using the first adhesive layer 11f. Therefore, each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be integrated (or disposed) with the first cover member 11d or laid flat to have a specific first separation distance (or interval) D1.

[0587] According to an exemplary embodiment of the present disclosure, the second cover member 11e can be disposed on the second surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 via a second adhesive layer 11g. For example, the second cover member 11e can be directly disposed on the second surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 via a film lamination process using the second adhesive layer 11g. Therefore, each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be integrated (or disposed) with the second cover member 11e or laid flat to have a specific first separation distance (or interval) D1.

[0588] The first adhesive layer 11f may be disposed between the first vibration generating portion 11-1 and the second vibration generating portion 11-2, and disposed on the first surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2. For example, the first adhesive layer 11f may be formed on the rear surface (or inner surface) of the first cover member 11d facing each of the first surfaces of the first vibration generating portion 11-1 and the second vibration generating portion 11-2, filling the space between the first vibration generating portion 11-1 and the second vibration generating portion 11-2, and filling the space between the first cover member 11d and the first surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2.

[0589] The second adhesive layer 11g may be disposed between the first vibration generating portion 11-1 and the second vibration generating portion 11-2, and disposed on the second surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2. For example, the second adhesive layer 11g may be formed on the front surface (or inner surface) of the second cover member 11e facing the second surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2, filling between the first vibration generating portion 11-1 and the second vibration generating portion 11-2, and filling between the second cover member 11e and the second surface of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2.

[0590] The first adhesive layer 11f and the second adhesive layer 11g can be connected or joined to each other between the first vibration generating portion 11-1 and the second vibration generating portion 11-2. Therefore, each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be surrounded by the first adhesive layer 11f and the second adhesive layer 11g. For example, the first adhesive layer 11f and the second adhesive layer 11g can be disposed between the first cover member 11d and the second cover member 11e to completely surround the first vibration generating portion 11-1 and the second vibration generating portion 11-2. For example, each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 can be embedded or built into the first adhesive layer 11f and the second adhesive layer 11g.

[0591] Each of the first adhesive layer 11f and the second adhesive layer 11g according to exemplary embodiments of the present disclosure may include an electrically insulating material that is adhesive and capable of compression and decompression. For example, each of the first adhesive layer 11f and the second adhesive layer 11g may include an epoxy resin, an acrylic resin, a silicone resin, or a polyurethane resin, but embodiments of the present disclosure are not limited thereto. Each of the first adhesive layer 11f and the second adhesive layer 11g may be configured to be transparent, translucent, or opaque.

[0592] According to another exemplary embodiment of the present disclosure, the vibration device 11 may further include a first power line PL1, a second power line PL2, and a pad portion 11p.

[0593] A first power line PL1 may be disposed at the first cover member 11d. The first power line PL1 may be disposed on the rear surface of the first surface of the first cover member 11d facing each of the first vibration generating portions 11-1 and 11-2. The first power line PL1 may be electrically connected to the first electrode portion 11b of each of the first vibration generating portions 11-1 and 11-2. For example, the first power line PL1 may be electrically connected and directly connected to the first electrode portion 11b of each of the first vibration generating portions 11-1 and 11-2. As an exemplary embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode portion 11b of each of the first vibration generating portions 11-1 and 11-2 via an anisotropic conductive film. As another exemplary embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode portion 11b of each of the first vibration generating portions 11-1 and 11-2 via a conductive material (or particles) included in the first adhesive layer 11f.

[0594] According to an exemplary embodiment of the present disclosure, the first power line PL1 may include a first upper power line PL11 and a second upper power line PL12 disposed along a second direction Y. For example, the first upper power line PL11 may be electrically connected to the first electrode portion 11b of the first vibration generating portion 11-1. The second upper power line PL12 may be electrically connected to the first electrode portion 11b of the second vibration generating portion 11-2.

[0595] A second power line PL2 may be disposed at the second cover member 11e. The second power line PL2 may be disposed on the front surface of the second surface of the second cover member 11e facing each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2. The second power line PL2 may be electrically connected to the second electrode portion 11c of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2. For example, the second power line PL2 may be electrically connected and directly connected to the second electrode portion 11c of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2. As an exemplary embodiment of this disclosure, the second power line PL2 may be electrically connected to the second electrode portion 11c of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 via an anisotropic conductive film. As another exemplary embodiment of this disclosure, the second power line PL2 may be electrically connected to the second electrode portion 11c of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 via a conductive material (or particles) included in the second adhesive layer 11g.

[0596] According to an exemplary embodiment of this disclosure, the second power line PL2 may include a first lower power line PL21 and a second lower power line PL22 disposed along a second direction Y. For example, the first lower power line PL21 may be electrically connected to the second electrode portion 11c of the first vibration generating portion 11-1. For example, the first lower power line PL21 may overlap with the first upper power line PL11. For example, the first lower power line PL21 may be configured not to overlap with the first upper power line PL11. When the first lower power line PL21 is configured not to overlap with the first upper power line PL11, a short circuit (or short circuit) between the first power line PL1 and the second power line PL2 can be prevented. The second lower power line PL22 may be electrically connected to the second electrode portion 11c of the second vibration generating portion 11-2. For example, the second lower power line PL22 may overlap with the second upper power line PL12. For example, the second lower power line PL22 may be configured not to overlap with the second upper power line PL12. When the second lower power line PL22 is set not to overlap with the second upper power line PL12, a short circuit between the first power line PL1 and the second power line PL2 can be prevented.

[0597] The pad portion 11p can be configured to be electrically connected to the first power line PL1 and the second power line PL2. The pad portion 11p can be configured at a peripheral portion of either the first cover member 11d or the second cover member 11e to be electrically connected to a portion (or an end) of each of the first power line PL1 and the second power line PL2.

[0598] According to an exemplary embodiment of the present disclosure, the pad portion 11p may include a first pad electrode electrically connected to one end of a first power line PL1 and a second pad electrode electrically connected to one end of a second power line PL2.

[0599] The first pad electrode can be commonly connected to a portion of each of the first upper power line PL11 and the second upper power line PL12 of the first power line PL1. For example, a portion of each of the first upper power line PL11 and the second upper power line PL12 can branch off from the first pad electrode. The second pad electrode can be commonly connected to a portion of each of the first lower power line PL21 and the second lower power line PL22 of the second power line PL2. For example, a portion of each of the first lower power line PL21 and the second lower power line PL22 can branch off from the second pad electrode.

[0600] The vibration device 11 according to another exemplary embodiment of the present disclosure may also include a signal cable 30.

[0601] The signal cable 30 can be electrically connected to the pad portion 11p disposed at the vibration device 11, and can provide the vibration device 11 with a vibration drive signal (or sound signal or voice signal) provided from the sound processing circuit. According to an exemplary embodiment of this disclosure, the signal cable 30 may include a first terminal electrically connected to a first pad electrode of the pad portion 11p and a second terminal electrically connected to a second pad electrode of the pad portion 11p. For example, the signal cable 30 may be configured as a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multilayer printed circuit, or a flexible multilayer printed circuit board, but embodiments of this disclosure are not limited thereto.

[0602] The sound processing circuit can generate AC vibration drive signals, including a first vibration drive signal and a second vibration drive signal, based on sound data. The first vibration drive signal can be either a positive (+) vibration drive signal or a negative (-) vibration drive signal, and the second vibration drive signal can also be either a positive (+) vibration drive signal or a negative (-) vibration drive signal. For example, the first vibration drive signal can be provided to the first electrode portion 11b of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 via the first terminal of the signal cable 30, the first pad electrode of the pad portion 11p, and the first power line PL1. The second vibration drive signal can be provided to the second electrode portion 11c of each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 via the second terminal of the signal cable 30, the second pad electrode of the pad portion 11p, and the second power line PL2.

[0603] As mentioned above, similar to the reference above. Figures 29 to 31 The described vibration device 11, according to another exemplary embodiment of the present disclosure, can be implemented as a thin film type and therefore can be bent into a shape corresponding to the shape of the vibrating member or vibrating object. It can easily vibrate a vibrating member including various curved surfaces and can enhance the sound characteristics and / or sound pressure level characteristics in the low-pitched vocal cords generated based on the vibration of the vibrating member. Additionally, the vibration device 11 according to another exemplary embodiment of the present disclosure may include a first vibration generating portion 11-1 and a second vibration generating portion 11-2 arranged (or laid flat) at a certain first separation distance (or interval) D1, so as to be implemented as a single vibrator without being driven independently. Therefore, it can be driven as a large-area vibrator (or large-area vibrator) based on the individual vibration of the first vibration generating portion 11-1 and the second vibration generating portion 11-2.

[0604] Figure 35 A vibration device according to another exemplary embodiment of the present disclosure is shown. Figure 35 It shows in Figure 33 and Figure 34 An exemplary embodiment of the vibration device shown is provided with four vibration generating parts. Therefore, in the following, elements other than the four vibration generating parts and related elements are indicated by the same reference numerals, and for the sake of brevity, repeated descriptions of them may be omitted, or their repeated descriptions will be given briefly. Figure 34 It shows along Figure 35 The section cut by line K-K' shown in the figure.

[0605] Reference Figure 35 Combination Figure 34According to another exemplary embodiment of the present disclosure, the vibration device 11 may include a plurality of vibration generating portions 11-1 to 11-4.

[0606] Multiple vibration generating portions 11-1 to 11-4 can be electrically disconnected and are arranged spaced apart from each other along a first direction X and a second direction Y. For example, the multiple vibration generating portions 11-1 to 11-4 can be arranged in an i×j configuration or laid flat on the same plane. Therefore, the vibration device 11 can be implemented to have a large area by laying out multiple vibration generating portions 11-1 to 11-4 with relatively small dimensions. For example, i can be the number of vibration generating portions arranged along the first direction X, and can be a natural number of 2 or greater; j can be the number of vibration generating portions arranged along the second direction Y, and can be a natural number of 2 or greater, the same as or different from i. For example, the multiple vibration generating portions 11-1 to 11-4 can be arranged or laid flat in a 2×2 configuration, but embodiments of this disclosure are not limited thereto. Hereinafter, examples of the vibration device 11 including the first vibration generating portions 11-1 to the fourth vibration generating portions 11-4 will be described.

[0607] According to an exemplary embodiment of this disclosure, the first vibration generating portion 11-1 and the second vibration generating portion 11-2 may be spaced apart from each other along a first direction X. The third vibration generating portion 11-3 and the fourth vibration generating portion 11-4 may be spaced apart from each other along the first direction X, and may be spaced apart from each of the first vibration generating portion 11-1 and the second vibration generating portion 11-2 along a second direction Y. The first vibration generating portion 11-1 and the third vibration generating portion 11-3 may be spaced apart from each other along the second direction Y so as to face each other. The second vibration generating portion 11-2 and the fourth vibration generating portion 11-4 may be spaced apart from each other along the second direction Y so as to face each other.

[0608] The first vibration generating portion 11-1 to the fourth vibration generating portion 11-4 can be disposed between the first cover member 11d and the second cover member 11e. For example, each of the first cover member 11d and the second cover member 11e can be connected to the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4, or can jointly support the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4. Therefore, the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4 can be driven as a vibration device (or a single vibration device). For example, the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4 can be laid flat at certain intervals by the cover members 11d and 11e, thus, it can be driven as a vibration device (or a single vibration device).

[0609] According to exemplary embodiments of this disclosure, as referred to above... Figure 33 and Figure 34 In order to achieve single-unit vibration or large-area vibration, the first vibration generating part 11-1 to the fourth vibration generating part 11-4 can be set (or laid flat) at intervals of 0.1 mm or greater and less than 3 cm in each of the first direction X and the second direction Y, or they can be set (or laid flat) at intervals of 0.1 mm or greater and less than 5 mm.

[0610] Each of the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4 may include a piezoelectric vibration portion 11a, a first electrode portion 11b, and a second electrode portion 11c.

[0611] The piezoelectric vibration portion 11a of each of the first vibration generating portions 11-1 to the fourth vibration generating portions 11-4 may include a piezoelectric material (or an electroactive material) having a piezoelectric effect. The piezoelectric vibration portion 11a of each of the first vibration generating portions 11-1 to the fourth vibration generating portions 11-4 may be configured to, as described above... Figure 31 and Figures 32A to 32D Any of the piezoelectric vibration parts 11a described are substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of them may be omitted.

[0612] According to an exemplary embodiment of this disclosure, each of the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4 may include the above-mentioned references. Figure 31 and Figures 32A to 32D The piezoelectric vibration portion 11a described may be any one of the piezoelectric vibration portions 11a, or may include different piezoelectric vibration portions 11a.

[0613] According to another exemplary embodiment of the present disclosure, one or more of the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4 may include the above-described references. Figure 31 and Figures 32A to 32D The same or different piezoelectric vibration part 11a described.

[0614] The first electrode portion 11b can be disposed on the first surface of the corresponding piezoelectric vibrating portion 11a, and can be electrically connected to the first surface of the piezoelectric vibrating portion 11a. The first electrode portion 11b can be referenced above. Figure 30 The first electrode portion 11b described is substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions of it may be omitted.

[0615] The second electrode portion 11c can be disposed on the second surface of the corresponding piezoelectric vibrating portion 11a and electrically connected to the second surface of the piezoelectric vibrating portion 11a. The second electrode portion 11c can be referenced above. Figure 30 The second electrode portion 11c described is substantially the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, repeated descriptions may be omitted.

[0616] According to an exemplary embodiment of this disclosure, the first adhesive layer 11f and the second adhesive layer 11g may be connected or coupled to each other between the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4. Therefore, each of the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4 may be surrounded by the first adhesive layer 11f and the second adhesive layer 11g. For example, the first adhesive layer 11f and the second adhesive layer 11g may be disposed between the first cover member 11d and the second cover member 11e to completely surround each of the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4. For example, each of the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4 may be embedded or built into the first adhesive layer 11f and the second adhesive layer 11g.

[0617] According to another exemplary embodiment of the present disclosure, the vibration device 11 may further include a first power line PL1, a second power line PL2, and a pad portion 11p.

[0618] Apart from the electrical connection structure between the first power line PL1 and the second power line PL2 and the first vibration generating parts 11-1 to the fourth vibration generating parts 11-4, the first power line PL1 and the second power line PL2 can be as described above. Figure 33 and Figure 34 The first power line PL1 and the second power line PL2 are basically the same. Therefore, the electrical connection structure between the first power line PL1 and the second power line PL2 and the first vibration generating part 11-1 to the fourth vibration generating part 11-4 will be briefly described below.

[0619] According to an exemplary embodiment of the present disclosure, the first power line PL1 may include a first upper power line PL11 and a second upper power line PL12 disposed along the second direction Y. For example, the first upper power line PL11 may be electrically connected to the first electrode portion 11b of each of the first vibration generating portion 11-1 and the third vibration generating portion 11-3 (or the first group or the first vibration generating group) disposed in a first row parallel to the second direction Y among the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4. The second upper power line PL12 may be electrically connected to the first electrode portion 11b of each of the second vibration generating portion 11-2 and the fourth vibration generating portion 11-4 (or the second group or the second vibration generating group) disposed in a second row parallel to the second direction Y among the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4.

[0620] According to an exemplary embodiment of the present disclosure, the second power line PL2 may include a first lower power line PL21 and a second lower power line PL22 disposed along the second direction Y. For example, the first lower power line PL21 may be electrically connected to the second electrode portion 11c of each of the first vibration generating portion 11-1 and the third vibration generating portion 11-3 (or the first group or the first vibration generating group) disposed in a first row parallel to the second direction Y among the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4. The second lower power line PL22 may be electrically connected to the second electrode portion 11c of each of the second vibration generating portion 11-2 and the fourth vibration generating portion 11-4 (or the second group or the second vibration generating group) disposed in a second row parallel to the second direction Y among the first vibration generating portion 11-1 to the fourth vibration generating portion 11-4.

[0621] The pad portion 11p can be disposed at a peripheral portion of one of the first cover member 11d and the second cover member 11e for electrical connection to one side (or one end) of each of the first power line PL1 and the second power line PL2. The pad portion 11p can be connected to... Figure 33 and Figure 34 The pad portion 11p shown is basically the same, therefore, the same reference numerals denote the same components, and for the sake of brevity, repeated descriptions of them can be omitted.

[0622] As described above, the vibration device 11 according to another exemplary embodiment of this disclosure may have the same characteristics as described above. Figures 29 to 34 The vibration device 11 described has the same effect, therefore, for the sake of brevity, its repeated description can be omitted.

[0623] Figure 36 A vibration device according to another exemplary embodiment of the present disclosure is shown. Figure 36 It shows how to modify Figures 29 to 32D The exemplary embodiment of the vibration device shown is implemented using a signal cable. Therefore, in the following, elements other than the signal cable and related components are indicated by the same reference numerals, and for the sake of brevity, repeated descriptions of them may be omitted, or they will be given briefly. Figure 30 It shows along Figure 36 An example of a cross section taken by line J-J' is shown.

[0624] Reference Figure 36 Combination Figure 30 In another exemplary embodiment of the vibration device 11 according to the present disclosure, the signal cable 30 may include a sound processing circuit 40.

[0625] The sound processing circuit 40 can be mounted on the signal cable 30. For example, the sound processing circuit 40 can be mounted on the peripheral portion of the signal cable 30 adjacent to the pad portion 11p of the vibration device 11. The sound processing circuit 40 can be integrated into (or mounted on) the signal cable 30, so the sound processing circuit 40 and the signal cable 30 can be implemented as a single component.

[0626] The signal cable 30 can be configured as a double-sided flexible printed circuit, but the embodiments of this disclosure are not limited thereto, and can be configured as a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multilayer printed circuit, or a flexible multilayer printed circuit board.

[0627] According to an exemplary embodiment of the present disclosure, the signal cable 30 may include a circuit layer (or line layer) on a base film, a lower film bonded to a first surface of the circuit layer by an adhesive, an upper film bonded to a second surface of the circuit layer by an adhesive, and a first terminal and a second terminal and a plurality of contact pads disposed on the upper film and connected to the circuit layer.

[0628] The circuit layer may include multiple signal lines, a first drive signal supply line, and a second drive signal supply line, etc., formed on one or more of the front and bottom (or lower) surfaces of the base film. For example, the multiple signal lines, the first drive signal supply line, and the second drive signal supply line may include a conductive material, such as copper (Cu), aluminum (Al), silver (Ag), or an alloy of copper (Cu) and silver (Ag), but the embodiments of this disclosure are not necessarily limited to this.

[0629] Each of the multiple contact pads can be located at one of the lower and upper films, and can be selectively connected to multiple signal lines, as well as a first drive signal supply line and a second drive signal supply line, through vias.

[0630] The first terminal and the second terminal can be electrically connected to the first pad electrode and the second pad electrode of the pad portion 11p configured in the vibration device 11, respectively.

[0631] The sound processing circuit 40 can be mounted on the signal cable 30 and electrically connected to multiple contact pads. The sound processing circuit 40 can receive sound data (or digital sound data), clock signals, enable signals, and various drive voltages from an external sound data generation circuit component via some of the multiple contact pads. The sound processing circuit 40 can generate a first vibration drive signal and a second vibration drive signal based on the sound data, and can output the generated first and second vibration drive signals to the first and second terminals respectively via the corresponding contact pads and corresponding drive signal supply lines. Therefore, the vibration device 11 can vibrate based on the first and second vibration drive signals provided by the sound processing circuit 40 mounted on the signal cable 30 via each of the signal lines, the first and second terminals, the pad portion 11p, and the first power line PL1 and the second power line PL2.

[0632] The sound processing circuit 40 according to an exemplary embodiment of the present disclosure may include a decoding section that receives sound data provided from an external sound data generation circuit component, an audio amplifier circuit that generates and outputs a first vibration drive signal and a second vibration drive signal based on the sound data provided from the decoding section, a memory circuit that stores setting values ​​of the audio amplifier circuit, a control circuit that controls the operation of each of the decoding section, the audio amplifier circuit and the memory circuit, and passive components such as resistors.

[0633] The audio amplifier circuit may include a preamplifier circuit that generates a first vibration drive signal and a second vibration drive signal based on sound data, and a power amplifier circuit that converts the voltage and / or current of each of the first vibration drive signal and the second vibration drive signal into a level suitable for driving the vibration device 11, but embodiments of this disclosure are not limited thereto.

[0634] Each of the decoding section, audio amplifier circuit, memory circuit, and control circuit can be implemented as an integrated circuit (IC) and can be mounted on the signal cable 30. For example, the decoding section, audio amplifier circuit, memory circuit, and control circuit can be implemented as a single integrated circuit (IC) or a semiconductor chip.

[0635] As described above, since the vibration device 11 according to another exemplary embodiment of the present disclosure includes a sound processing circuit 40 mounted on a signal cable 30, the connection structure between the vibration device 11, the sound processing circuit 40, the signal cable 30, and the sound data generation circuit components can be simplified. Furthermore, since the sound processing circuit 40 is disposed adjacent to the vibration device 11, a filter circuit including an inductor and a capacitor for preventing electromagnetic interference (EMI) due to the length of the signal cable 30 based on the distance between the sound processing circuit 40 and the vibration device 11 can be omitted. However, embodiments of the present disclosure are not limited thereto.

[0636] Additionally, in another exemplary embodiment of the vibration device 11 according to this disclosure, the signal cable 30, which integrates or is equipped with the sound processing circuit 40, can also be applied to the above-mentioned reference. Figure 29 , Figure 33 and Figure 35 The vibrating device 11 is described in one or more figures. For example, see above. Figure 29 , Figure 33 and Figure 35 The signal cable 30 of the vibration device 11 described in one or more figures may include a sound processing circuit 40, and therefore, for the sake of brevity, repeated descriptions thereof may be omitted.

[0637] Figure 37 A vibration device according to another exemplary embodiment of the present disclosure is shown. Figure 38 It is along Figure 37 The cross-sectional view taken by line L-L' shown in the figure. Figure 39 It is along Figure 37 The cross-sectional view taken by line M-M' shown in the figure. Figures 37 to 39 It shows in Figures 1 to 19 Another exemplary embodiment of the vibration device shown in one or more of the figures is illustrated, and modifications are shown. Figure 36 An exemplary embodiment is achieved through the connection structure between the electrode portion and the signal cable shown.

[0638] Reference Figures 37 to 39 According to another exemplary embodiment of the present disclosure, the vibration device (vibrating plate) 11 may include a vibration generating part and a signal cable 30.

[0639] The vibration generating part may include a piezoelectric vibration part 11a, a first electrode part 11b, and a second electrode part 11c. The vibration generating part can be referenced above. Figures 29 to 32D The vibration generating parts of the described vibration device 11 are basically the same; therefore, the same reference numerals denote the same elements, and for the sake of brevity, their repeated descriptions can be omitted.

[0640] The signal cable 30 can be electrically connected to the first electrode portion 11b and the second electrode portion 11c on one side (or a portion) of the vibration device 11. Therefore, the signal cable 30 can be integrated into the vibration generating portion. For example, the signal cable 30 can be electrically connected and directly connected to the first electrode portion 11b and the second electrode portion 11c. For example, the signal cable 30 can be connected without referring to the above description. Figures 29 to 32D The power cord and pad portion are described and can be electrically connected or directly electrically connected to the first electrode portion 11b and the second electrode portion 11c.

[0641] The signal cable 30 according to an exemplary embodiment of the present disclosure may include a first protruding wire 31a and a second protruding wire 31b. For example, the first protruding wire 31a may overlap with at least a portion of the first electrode portion 11b and may be electrically connected or directly electrically connected to the first electrode portion 11b. The second protruding wire 31b may overlap with at least a portion of the second electrode portion 11c and may be electrically connected or directly electrically connected to the second electrode portion 11c. For example, each of the first protruding wire 31a and the second protruding wire 31b may be bent toward a corresponding electrode portion in the first electrode portion 11b and the second electrode portion 11c, but the embodiments of the present disclosure are not limited thereto. For example, each of the first protruding wire 31a and the second protruding wire 31b may be referred to as a protruding electrode, an extension wire, an extension electrode, a flexible protruding electrode, a flexible connecting wire, a fl...

Claims

1. A vibration device, the vibration device comprising: Vibration device; An adhesive component, wherein the adhesive component is located on the surface of the vibration device; A reinforcing member is located between the vibration device and the adhesive member; as well as An intermediate bonding member is located between the vibration device and the reinforcing member. Wherein, the modulus of the vibration device is equal to or greater than the modulus of the adhesive component. The front, rear, and side surfaces of the reinforcing member are surrounded by the intermediate adhesive member and the adhesive member. The modulus of the vibration device is greater than that of the reinforcing member, and the modulus of the vibration device is greater than or equal to that of the intermediate bonding member.

2. The vibration device according to claim 1, wherein, The reinforcing member includes one or more of plastic, leather, wood, cloth, and paper.

3. The vibration device according to claim 1, wherein, The reinforcing member comprises fibers.

4. The vibration device according to claim 1, wherein, The area of ​​the vibration device is larger than the area of ​​the reinforcing member.

5. The vibration device according to claim 1, wherein, The reinforcing member includes one or more holes, and The intermediate adhesive member and the adhesive member are connected to each other in one or more holes.

6. The vibration device according to claim 1, further comprising: A vibrating plate located on the rear surface of the adhesive member; as well as A support member that is connected to the rear peripheral portion of the vibrating plate.

7. The vibration device according to claim 6, wherein, The supporting component includes: A first support portion, the first support portion being connected to the rear peripheral portion of the vibrating plate; A second support portion, the second support portion being parallel to the first support portion; and The third support portion is connected between the first support portion and the second support portion.

8. The vibration device according to claim 7, wherein, The third support portion is perpendicular to both the first support portion and the second support portion, and the first support portion does not overlap with the second support portion.

9. The vibration device according to claim 6, further comprising a housing, the housing including an internal space. in, The vibration device, the vibrating plate, and the supporting member are housed within the internal space of the housing, and The support member is connected to the inner surface of the housing.

10. The vibration device according to claim 9, wherein, The housing includes: A first housing member is configured to be spaced apart from the vibrating plate and face the vibrating plate; A second housing member, the second housing member being spaced apart from the vibration device and facing the vibration device; and One or more holes, which are disposed at the first housing member and overlap with the vibrating plate.

11. The vibration device according to claim 10, wherein, The support member is connected to one or more of the first housing member and the second housing member.

12. The vibration device according to claim 10, further comprising a connecting member connected between the second housing member and the vibrating plate. in, The support member is connected to the first housing member.

13. The vibration device according to claim 6, further comprising a connecting member located between the vibrating plate and the supporting member. in, The connecting member includes a first connecting member and a second connecting member disposed outwardly from the first connecting member, and The first connecting member is configured to have a hardness that is lower than or higher than that of the second connecting member.

14. The vibration device according to claim 13, further comprising one or more pads projecting from the connecting member toward the vibration device.

15. The vibration device of claim 6, further comprising a connecting member coupled to the rear surface of the support member and configured to connect the support member or the vibration device to the vibration member.

16. The vibration device according to claim 6, wherein, The supporting component includes: A first support portion, the first support portion being connected to the rear peripheral portion of the vibrating plate; A second support portion, the second support portion being parallel to the first support portion and disposed below the first support portion; and A vibration blocking portion protrudes convexly between the first support portion and the second support portion to surround the side surface of the vibration device.

17. The vibration device according to claim 16, wherein, The vibration blocking portion protrudes relative to the front surface of the vibration device, which is opposite to the rear surface.

18. The vibration device according to claim 1, further comprising: A vibrating plate, the vibrating plate being located on the rear surface of the adhesive member; as well as A housing that is connected to the vibrating plate and surrounds the vibrating device.

19. The vibration device according to claim 18, further comprising a connecting member connected between the housing and the vibrating plate.

20. The vibration device according to claim 1, further comprising: A vibrating plate, located on the rear surface of the adhesive member. The vibrating plate includes multiple regions with different rigidities, and The vibration device overlaps with one or more of the plurality of regions.

21. The vibration device according to claim 20, wherein, The multiple regions comprise different materials.

22. The vibration device according to claim 20, wherein, The multiple regions include different materials such as metal, plastic, leather, wood, cloth, and paper.

23. The vibration device of claim 20, further comprising a housing connected to the vibrating plate and surrounding the vibration device.

24. The vibration device according to claim 23, further comprising a connecting member connected between the housing and the vibrating plate.

25. The vibration device according to claim 1, further comprising a vibrating plate located on the rear surface of the adhesive member. in, The vibrating plate includes: A first plate, the first plate comprising a first region and a second region; and One or more second plates, said one or more second plates being located at the first region of the first plate, and The vibration device overlaps with one or more second plates.

26. The vibration device according to claim 25, wherein, The first plate includes one or more holes located in the first region, and The one or more second plates overlap with the first plate to cover the one or more holes.

27. The vibration device according to claim 1, further comprising a vibrating plate located on the rear surface of the adhesive member. in, The vibrating plate includes: A flat portion, the flat portion being connected to the vibrating device; and The flexural portion is disposed in the peripheral area of ​​the flat portion.

28. The vibration device according to claim 1, further comprising a vibrating plate located on the rear surface of the adhesive member. in, The vibrating plate includes a first region where the vibrating device is disposed and a second region surrounding the first region, and The second region has a lower rigidity than the first region.

29. The vibration device according to claim 1, further comprising: A signal cable, which is electrically connected to the vibration device; as well as A sound processing circuit is mounted on the signal cable.

30. The vibration device according to claim 1, wherein, The vibration device includes: A piezoelectric vibration section, the piezoelectric vibration section comprising a plurality of piezoelectric sections and a ductile section connected between the plurality of piezoelectric sections; A first electrode portion, the first electrode portion being located at a first surface of the piezoelectric vibration portion; and The second electrode portion is located on a second surface of the piezoelectric vibration portion that is different from the first surface.

31. The vibration device according to claim 30, further comprising: A signal cable electrically connected to the first electrode portion and the second electrode portion; as well as A sound processing circuit is mounted on the signal cable.

32. The vibration device according to claim 31, in, The vibration device also includes: A first cover member, the first cover member covering the first electrode portion; and The second cover member covers the second electrode portion, and The signal cable includes: A first protruding line is disposed between the first cover member and the first electrode portion and is electrically connected to the first electrode portion; and The second protruding line is disposed between the second cover member and the second electrode portion and is electrically connected to the second electrode portion.

33. The vibration device according to claim 1, in, The vibration device comprises two or more vibration-generating parts separated from each other on the same plane, and Each of the two or more vibration-generating parts includes: A piezoelectric vibration section, the piezoelectric vibration section comprising a plurality of piezoelectric sections and a ductile section connected between the plurality of piezoelectric sections; A first electrode portion, the first electrode portion being located at a first surface of the piezoelectric vibration portion; and The second electrode portion is located on a second surface of the piezoelectric vibration portion that is different from the first surface.

34. The vibration device according to claim 33, wherein, The interval between the two or more vibration-generating parts is greater than or equal to 0.1 mm and less than 3 cm.

35. The vibration device according to claim 33, wherein, The two or more vibration-generating parts are driven as a single unit rather than independently.

36. The vibration device according to claim 33, further comprising: One or more signal cables, said one or more signal cables being electrically connected to each of the first electrode portion and the second electrode portion of each of said two or more vibration generating portions; as well as A sound processing circuit, wherein the sound processing circuit is installed at one or more signal cables.

37. The vibration device according to claim 36, in, The vibration device includes: A first cover member, located at the first electrode portion of each of the two or more vibration-generating portions; and A second cover member is located at the second electrode portion of each of the two or more vibration-generating portions, and The one or more signal cables include: One or more first protruding lines, said one or more first protruding lines being disposed between and electrically connected to the first electrode portion of each of the first cover member and the first electrode portion of each of the two or more vibration generating portions; and One or more second protruding lines are disposed between the second cover member and the second electrode portion of each of the two or more vibration generating portions and are electrically connected to the second electrode portion.

38. The vibration device according to claim 37, wherein, A portion of one or more signal cables is inserted between the first cover member and the second cover member.

39. A sound device, the sound device comprising: Vibrating components; as well as One or more vibration generating devices connected to the vibrating component. The one or more vibration generating devices include the vibration devices according to any one of claims 1 to 38.

40. The sound device according to claim 39, wherein, The vibrating component is configured to output sound based on the vibrations of the one or more vibration generating devices, and The vibrating component includes one or more of the following: metal, plastic, leather, wood, cloth, paper, rubber, and glass.

41. The sound device according to claim 39, wherein, The vibrating component is configured to output sound based on the vibrations of the one or more vibration generating devices, and The vibrating component includes fibers.

42. The sound device according to claim 39, wherein, The vibrating component includes any one of the following: a display panel comprising pixels configured to display images, a screen panel onto which images are projected from a display device, a light-emitting diode illumination panel, and a sign panel.

43. The sound device according to claim 39, wherein, The vibrating component includes any one of the following: vehicle windows, mirrors, building ceilings, building windows, and aircraft windows.

44. The sound device according to claim 39, wherein, The vibration device is configured to bend into a shape based on the surface shape of the vibration member.

45. The sound device according to claim 39, wherein, The vibrating component includes a display panel, and the one or more vibration generating devices include the vibration device according to claim 16 or 17. The second support portion is composed of a rear structure disposed on the rear surface of the display panel.

46. ​​A vehicle device comprising: Main structure; External components that cover the main structure; Internal components that cover one or more of the main structure and the external components; Decorative component, which covers a portion of the internal component; as well as One or more sound generating devices, wherein the one or more sound generating devices are located between at least two of the main structure, the external component, and the internal component, or between the decorative component and the internal component. Wherein, the one or more sound generating devices include the vibration device according to any one of claims 1 to 38, and One or more of the internal component, the external component, and the decorative component are configured to output sound based on the vibration of the one or more sound generating devices.

47. The vehicle equipment according to claim 46, wherein, One or more of the internal components and the decorative components include one or more of metal, plastic, leather, wood, cloth, paper, rubber and glass.

48. The vehicle equipment according to claim 46, wherein, One or more of the internal components and the decorative components include fibers.

49. The vehicle equipment according to claim 46, wherein, The internal components include one or more of a dashboard, rearview mirror, overhead console, glove box, and sun visor, and The one or more sound generating devices are configured to cause at least one or more of the dashboard, the rearview mirror, the overhead console, the glove box, and the sun visor to vibrate.

50. The vehicle equipment according to claim 46, further comprising: Glass window; as well as A transparent sound generating device is disposed at the glass window.

51. The vehicle equipment according to claim 50, wherein, The glass windows include at least one or more of the following: front window, side windows, rear window, and roof window. The transparent sound generating device is configured to cause at least one or more of the front window, the side windows, the rear window, and the roof window to vibrate.

52. The vehicle equipment according to claim 46, wherein, The internal component includes a recessed portion formed from the surface of the internal component facing the decorative component, and The recessed portion accommodates one or more sound generating devices connected to the decorative member.

Images