Sound device and sound system comprising the same

Abstract

A sound device and a sound system including the same, the sound device including a vibration member, a housing configured to cover a rear surface of the vibration member, and a vibration device including one or more vibration means configured to vibrate the vibration member, the vibration member including a non-planar structure.

Description

[0001] Intersection of related applications

[0002] This application claims the benefit and priority of Korean Patent Application No. 10-2021-0086154, filed on June 30, 2021, the entire contents of which are incorporated herein by reference for all purposes. Technical Field

[0003] This disclosure relates to a sound device and a sound system including the sound device, and more specifically, to a sound device and a sound system including the sound device that can prevent or minimize the degradation of sound characteristics caused by reflected waves. Background Technology

[0004] Recently, there has been an increasing demand for sound bars or sound devices that output sound through one or more speakers.

[0005] However, soundbars have the problem of reduced sound quality and / or sound pressure level characteristics due to sound interference between multiple speakers. Summary of the Invention

[0006] The inventors of this disclosure have recognized the aforementioned problems and have conducted various experiments to prevent or minimize sound interference between multiple loudspeakers, and have further conducted various experiments to achieve stereo sound output through sound separation of each channel or tone frequency band. Furthermore, the inventors have conducted various experiments to achieve sound characteristics degradation caused by reflected waves. Based on these experiments, the inventors have invented a new sound device and a sound system including the sound device that can prevent or minimize sound interference between multiple loudspeakers, a new sound device and a sound system including the sound device that can output stereo sound through sound separation of each channel or tone frequency band, and a new sound device and a sound system including the sound device that can prevent or minimize sound characteristics degradation caused by reflected waves.

[0007] Therefore, embodiments of this disclosure are intended to provide a sound device and a sound system including the sound device that substantially eliminate one or more problems caused by the limitations and disadvantages of related technologies.

[0008] One or more aspects of this disclosure are intended to provide a sound device and a sound system including the sound device that can prevent or minimize the degradation of sound characteristics caused by reflected waves.

[0009] One or more aspects of this disclosure are intended to provide a sound device and a sound system including the sound device that can prevent or minimize sound interference between multiple speakers.

[0010] One or more aspects of this disclosure are intended to provide a sound device and a sound system including the sound device that can output stereo sound by sound separation of each channel or tone audio band.

[0011] The purpose of this disclosure is not limited to the foregoing, but rather other purposes not described herein will be clearly understood by those skilled in the art from the following description.

[0012] Additional features and aspects of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practicing the inventive concept provided herein. Other features and aspects of the inventive concept may be realized and obtained by means of structures specifically pointed out in the written description, and in its claims and drawings, or that are available therefrom.

[0013] To achieve these and other aspects of this disclosure, as embodied and broadly described herein, a sound device may include: a vibrating member, a housing configured to cover the rear surface of the vibrating member, and a vibrating device including one or more vibrating devices configured to vibrate the vibrating member. The vibrating member may include a non-planar structure.

[0014] In one or more aspects of this disclosure, a sound device may include: a housing including a receiving space; a vibrating member configured to cover the receiving space of the housing, the vibrating member including a first region to an nth region (where n is a natural number greater than 3); and a vibrating device including one or more first to nth vibrating devices configured to vibrate each of the first to nth regions of the vibrating member. The housing may include spatial separation portions that divide the receiving space into first to nth spaces corresponding to the first to nth regions respectively.

[0015] In one or more aspects of this disclosure, the sound system may include: a display device configured to display an image; one or more first speaker devices rotatably disposed near a first side of the display device, each of the one or more first speaker devices including a sound output device; and one or more second speaker devices rotatably disposed near a second side of the display device, each of the one or more second speaker devices including a sound output device. The display device may include a display panel and display driving circuitry, the display driving circuitry displaying different images in a first area and a second area of ​​the display panel, and providing a screen splitting mode signal to each of the one or more first speaker devices and the one or more second speaker devices. The one or more first speaker devices may rotate their sound output devices toward a first listening location near the first area of ​​the display panel in response to the screen splitting mode signal, and the one or more second speaker devices may rotate their sound output devices toward a second listening location near the second area of ​​the display panel in response to the screen splitting mode signal.

[0016] According to some embodiments of this disclosure, a sound device and a sound system including the sound device are provided for preventing or minimizing the degradation of sound characteristics caused by reflected waves.

[0017] According to some embodiments of the present disclosure, a sound device for preventing or minimizing sound interference between a plurality of speakers and a sound system including the sound device can be provided.

[0018] According to some embodiments of the present disclosure, a sound device and a sound system including the sound device can be provided for outputting stereo sound by sound separation for each channel or tone audio band.

[0019] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon examination of the following figures and detailed description. All such additional systems, methods, features, and advantages are intended to be included within this specification, falling within the scope of this disclosure and protected by the appended claims. Nothing in this section should be construed as limiting those claims. Further aspects and advantages are discussed below in conjunction with aspects of this disclosure.

[0020] It should be understood that both the foregoing general description and the following detailed description are exemplary and explanatory, and are intended to provide further explanation of the claimed disclosure.

[0021] Appendix 1. A sound device comprising: Vibrating components; A housing configured to cover the rear surface of the vibrating member; and A vibration device comprising one or more vibration mechanisms configured to vibrate the vibrating member. The vibrating component includes a non-planar structure.

[0022] Note 2. The sound device according to Note 1, wherein the front surface of the vibrating member opposite to the rear surface has the non-planar structure.

[0023] Note 3. The sound device according to Note 2, wherein the non-planar structure includes a curved surface structure or an inclined surface structure.

[0024] Note 4. The sound device according to Note 1, wherein the vibrating member comprises any one of a circular shape, an elliptical shape, and a polygonal shape comprising three or more vertices.

[0025] Note 5. The sound device according to Note 1, wherein the vibrating member has the non-planar structure by means of one or more recessed portions and one or more protruding portions.

[0026] Note 6. The sound device according to Note 5, wherein each recessed portion is constructed between adjacent protruding portions and includes the central portion of the vibrating member.

[0027] Appendix 7. The sound device according to Appendix 1, wherein the vibrating device includes a first to an nth vibrating device connected to the rear surface of the vibrating member, where n is a natural number greater than or equal to 2, and

[0028] The interval between the first vibration device and the nth vibration device is 3mm to 5mm.

[0029] Note 8. The sound device according to Note 6, wherein, relative to a first direction in the horizontal direction, the interval between the end of the vibrating member and each of the first to nth vibrating devices is less than the length of a vibrating device and greater than the interval between adjacent vibrating devices.

[0030] Appendix 9. The sound device according to Appendix 6, wherein the vibrating member comprises a first region to an nth region connected to each of the first to nth vibrating devices, and

[0031] The pitch frequency band of the sound output from one of the regions from the first region to the nth region is different from the pitch frequency band of the sound output from the other regions from the first region to the nth region.

[0032] Appendix 10. The sound device according to Appendix 1, wherein the vibrating device includes a first to an nth vibrating device connected to the rear surface of the vibrating member, where n is a natural number greater than or equal to 2, and

[0033] Wherein, the first vibration device to the nth vibration device are arranged at certain intervals along a first horizontal direction, and

[0034] Wherein, relative to the first direction, the interval between the end of the vibrating member and each of the first to the nth vibrating devices is less than the length of one vibrating device.

[0035] Appendix 11. A sound device comprising: A housing, which includes a receiving space; A vibrating member configured to cover the receiving space of the housing, the vibrating member comprising a first region to an nth region, where n is a natural number greater than or equal to 3; and A vibration device comprising one or more first to nth vibration devices configured to vibrate each of the first to nth regions of the vibrating member. The housing includes spatial separation portions that divide the accommodating space into first spaces to nth spaces corresponding to the first region to the nth region, respectively.

[0036] Note 12. The sound device according to Note 11, wherein the pitch frequency band of the sound output from one of the regions from the first region to the nth region of the vibrating member is different from the pitch frequency band of the sound output from the other regions from the first region to the nth region of the vibrating member.

[0037] Appendix 13. The sound device according to Appendix 11, wherein the vibrating member includes a first region to a third region disposed along a first direction in the horizontal direction, and

[0038] The spatial separation portion includes: A first partition wall is disposed between the first space and the second space; and A second partition wall is disposed between the second space and the third space.

[0039] Appendix 14. The sound device according to Appendix 11, wherein the housing comprises: The base plate portion covers the rear surface of the vibrating device and the vibrating component; A first side portion, which is connected to a first peripheral portion of the base plate portion in a first direction parallel to the horizontal direction; The second side portion is connected to the second peripheral portion of the base plate portion that is parallel to the first peripheral portion of the base plate portion; The third side portion, which is connected to the third peripheral portion of the base plate portion parallel to the second direction intersecting the first direction; and The fourth side portion is connected to the fourth peripheral portion of the third peripheral portion, which is parallel to the base plate portion, and... The spatial separation portion includes: A first partition wall connects the first side portion and the second side portion to separate the first space and the second space; and A second partition wall connects the first side portion and the second side portion to separate the second space and the third space.

[0040] Appendix 15. The sound device according to Appendix 14, wherein the vibrating member includes a first region, a second region, and a third region disposed along the first direction. The one or more first vibration devices are configured to cause the first region of the vibration member to vibrate. Wherein, the one or more second vibration devices are configured to cause the second region of the vibration member to vibrate, and The one or more third vibration devices are configured to cause the third region of the vibration member to vibrate.

[0041] Appendix 16. The sound device according to Appendix 15, wherein the housing comprises: A first sound separation section is disposed in the first space between the one or more first vibration devices and the first partition wall; and The second sound separation section is disposed in the third space between the one or more third vibration devices and the second partition wall.

[0042] Appendix 17. The sound device according to Appendix 16, wherein each of the first sound separation portion and the second sound separation portion comprises: One or more ribs, said one or more ribs protruding along the second direction from the inner surface of one or more of the first side portion and the second side portion; and One or more sound separation components are disposed between the one or more ribs and the rear surface of the vibrating component.

[0043] Appendix 18. The sound device according to Appendix 16, wherein each of the first sound separation portion and the second sound separation portion comprises: Multiple ribs, the multiple ribs protruding from the inner surface of one or more of the first side portion and the second side portion, having different lengths along the second direction; and A plurality of sound separation components are disposed between each of the plurality of ribs and the rear surface of the vibrating component.

[0044] Note 19. The sound device according to Note 18, wherein the length of each of the plurality of ribs varies toward the spatial separation portion.

[0045] Note 20. The sound device according to Note 18, wherein the length of each of the plurality of ribs increases toward the spatial separation portion.

[0046] Appendix 21. The sound device according to Appendix 15, wherein the housing comprises: A first sound limiting portion, wherein the first sound limiting portion is disposed near the one or more first vibration devices; and A second sound limiting portion is disposed near the one or more third vibration devices.

[0047] Appendix 22. The sound device according to Appendix 21, wherein the first sound limiting portion comprises: One or more first protruding portions, said one or more first protruding portions protruding toward the first space from the inner surface of one or more of the first side portions surrounding the first space to the third side portions and the first partition wall; and One or more first sound-limiting members, said one or more first sound-limiting members being disposed between said one or more first protrusions and the rear surface of said vibrating member, and The second sound limiting part includes: One or more second protrusions, said one or more second protrusions protruding toward the third space from the inner surface of one or more of the second partition wall, the first side portion, the second side portion, and the fourth side portion surrounding the third space; and One or more second sound limiting members, said one or more second sound limiting members being disposed between said one or more second protrusions and the rear surface of said vibrating member.

[0048] Appendix 23. The sound device according to Appendix 22, wherein the one or more first protrusions face the inner surface of one or more of the first side portions and the second side portions between the one or more first vibrating devices and the first partition wall, and

[0049] The one or more second protruding portions face the inner surface of one or more of the first side portions and the second side portions between the one or more third vibration devices and the second partition wall.

[0050] Appendix 24. The sound device according to Appendix 22, wherein one or more of the first protruding portions face the central portion of one or more of the first vibrating devices from the inner surface of one or more of the first partition wall and the third side portion, and

[0051] The one or more second protruding portions face the central portion of the one or more third vibration devices from the inner surface of one or more of the second partition wall and the fourth side portion.

[0052] Note 25. The sound device according to Note 22, wherein the space in which one or more first protrusions at the third side portion and one or more second protrusions at the fourth side portion are disposed outputs the frequency of the high-pitched sound frequency band.

[0053] Note 26. The sound device according to Note 22, wherein the space in which one or more first protrusions at the first side portion and one or more second protrusions at the second side portion are disposed outputs the frequency of the bass-tone audio band.

[0054] Appendix 27. The sound device according to Appendix 11, wherein the first region of the vibrating member includes a first peripheral region of the vibrating member, and the nth region of the vibrating member includes a second peripheral region of the vibrating member, and

[0055] The pitch frequency band of the sound output from each of the first region to the nth region of the vibrating member increases from the central region of the vibrating member toward the first region and the nth region.

[0056] Appendix 28. The sound device according to Appendix 11, wherein the first region of the vibrating member includes a first peripheral region of the vibrating member, and the nth region of the vibrating member includes a second peripheral region of the vibrating member, and

[0057] The size of each of the one or more first vibration devices to the nth vibration device decreases from the central region of the vibration member toward the first region and the nth region.

[0058] Note 29. The sound device according to Note 11, wherein the one or more first vibrating devices cause the first region to vibrate to generate ultrasonic waves. Wherein, the one or more nth vibration devices cause the nth region to vibrate to generate multiple ultrasonic waves with different frequencies, and Among them, any one of the plurality of ultrasonic waves output from the nth region has the same frequency as the ultrasonic wave output from the first region, and another of the plurality of ultrasonic waves output from the nth region has a higher frequency than the ultrasonic wave output from the first region.

[0059] Appendix 30. The sound device according to Appendix 11, wherein the one or more first vibrating devices disposed in the first region are configured to emit and receive ultrasonic waves, and

[0060] The one or more nth vibration devices disposed in the nth region are configured to emit and receive ultrasonic waves.

[0061] Note 31. The sound device according to Note 11 further includes: A support frame, including a rotating shaft configured to rotatably support the housing; An electric motor, which is mounted on the bracket, is used to rotate the rotating shaft. A sensing unit, disposed at the housing or the bracket, is used to sense one or more of the position and movement of the receiver, thereby generating sensing information; and A motor driver that drives the motor based on sensing information provided from the sensing unit.

[0062] Appendix 32. The sound device according to Appendix 31, wherein the sensing unit includes: An ultrasonic sensor that emits and receives ultrasonic waves; and A sensing circuit that generates the sensing information based on ultrasonic waves received from the ultrasonic sensor.

[0063] Note 33. The sound device according to any one of Notes 1 to 32 further includes a first connecting member and a second connecting member, the first connecting member and the second connecting member being disposed parallel to each other between the vibrating member and the housing to have different stiffnesses.

[0064] Note 34. The sound device according to Note 33, wherein the first connecting member is surrounded by the second connecting member and has a lesser hardness than the second connecting member.

[0065] Note 35. The sound device according to Note 33, wherein the first connecting member is surrounded by the second connecting member and has a higher hardness than the second connecting member.

[0066] Note 36. The sound device according to any one of Notes 1 to 32, wherein the vibration device comprises: A piezoelectric vibrating portion, comprising a plurality of piezoelectric portions and an extension portion connected between the plurality of piezoelectric portions; A first electrode portion, the first electrode portion being located at a first surface of the piezoelectric vibrating portion; and The second electrode portion is located on the second surface of the piezoelectric vibration portion opposite to the first surface.

[0067] Appendix 37. The sound device according to any one of Appendices 1 to 32, wherein the vibrating device comprises two or more vibration-generating portions arranged along one or more directions, including a first direction and a second direction intersecting the first direction, and

[0068] Each of the two or more vibration generating parts includes: A piezoelectric vibrating portion, comprising a plurality of piezoelectric portions and an extension portion connected between the plurality of piezoelectric portions; 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 the second surface of the piezoelectric vibration portion opposite to the first surface.

[0069] Note 38. The sound device according to Note 37, wherein the vibration device comprises: One or more signal cables, the one or more signal cables being electrically connected to each of the first electrode portion and the second electrode portion; and A signal generation circuit, which is mounted on one or more signal cables.

[0070] Note 39. The sound device according to Note 38, wherein the vibration device further comprises: A first cover member, the first cover member covering the first electrode portion; and A second cover member covers the second electrode portion; and The one or more signal cables include: A first protruding line, the first protruding line being disposed between the first cover member and the first electrode portion and electrically connected to the first electrode portion; and A second protruding line is disposed between the second cover member and the second electrode portion and is electrically connected to the second electrode portion.

[0071] Note 40. The sound device according to Note 39, wherein a portion of each of the one or more signal cables is accommodated between the first cover member and the second cover member.

[0072] Note 41. The sound device according to any one of Notes 1 to 32, wherein the vibrating component comprises one or more materials selected from metal, plastic, fiber, leather, wood, cloth, paper, and glass.

[0073] Note 42. The sound device according to any one of Notes 1 to 32, wherein the vibrating member comprises any one of: a display panel including pixels configured to display images, a screen panel onto which images are projected from the display device, an illumination panel, a sign panel, glass, and a mirror.

[0074] Appendix 43. A sound system comprising: A display device configured to display an image; One or more first speaker devices, rotatably disposed near a first side of the display device, each of the one or more first speaker devices including a sound output device, the sound output device including the sound device described in any one of Appendices 1 to 32; and One or more second speaker devices, rotatably disposed near a second side of the display device, each of the one or more second speaker devices including a sound output device. The display device includes a display panel and a display driving circuit. The display driving circuit displays different images in a first area and a second area of ​​the display panel and provides a screen splitting mode signal to each of the one or more first speaker devices and the one or more second speaker devices. In response to the screen splitting mode signal, the one or more first speaker devices rotate the sound output device toward a first listening direction near a first area of ​​the display panel, and In response to the screen splitting mode signal, the one or more second speaker devices rotate the output device toward a second listening direction near the second area of ​​the display panel.

[0075] Appendix 44. The sound system according to Appendix 43, wherein each of the one or more first loudspeaker devices and the one or more second loudspeaker devices comprises: A bracket, including a rotating shaft configured to rotatably support the sound output device; An electric motor, which is mounted on the bracket, is used to rotate the rotating shaft. A sensing unit, disposed at the sound output device or the bracket, senses one or more of the position and movement of the corresponding listener, thereby generating sensing information; and A motor driver that responds to the screen splitting mode signal and drives the motor based on sensing information provided from the sensing unit.

[0076] Note 45. The sound system according to Note 44, wherein the sensing unit includes: An ultrasonic sensor, configured to emit and receive ultrasonic waves; and A sensing circuit configured to generate the sensing information based on ultrasonic waves received from the ultrasonic sensor.

[0077] Note 46. The sound system described in Note 44, The rotating shaft rotatably supports the housing of the sound output device, and The sensing element is disposed on the housing or the bracket. Attached Figure Description

[0078] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of the present disclosure. These drawings illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0079] Figure 1 This is a perspective view illustrating a sound device according to an embodiment of the present disclosure.

[0080] Figure 2 It is along Figure 1 The cross-sectional view shown is taken from line AA′.

[0081] Figure 3 This is an example Figure 2 The diagram shows the layout of the vibration device.

[0082] Figure 4 It is along Figure 1 Another cross-sectional view taken from line AA′ shown.

[0083] Figure 5 It is along Figure 1 Another cross-sectional view taken from line AA′ shown.

[0084] Figure 6 It is along Figure 1 Another cross-sectional view taken from line AA′ shown.

[0085] Figure 7A This is a plan view illustrating a sound device according to another embodiment of the present disclosure.

[0086] Figure 7B This is a plan view illustrating a sound device according to another embodiment of the present disclosure.

[0087] Figure 7C This is a plan view illustrating a sound device according to another embodiment of the present disclosure.

[0088] Figure 8 It is along Figure 1 Another cross-sectional view taken from line AA′ shown.

[0089] Figure 9 Examples Figure 8 The vibrating component and multiple vibrating devices are shown.

[0090] Figure 10A It is along Figure 1 Another cross-sectional view taken from line AA′ shown.

[0091] Figure 10B It is along Figure 1 Another cross-sectional view taken from line AA′ shown.

[0092] Figure 11 This is a plan view illustrating a sound device according to another embodiment of the present disclosure.

[0093] Figure 12 It is along Figure 11 The cross-sectional view of line BB′ shown.

[0094] Figure 13 This is an example Figure 11 and Figure 12 The diagram shows a three-dimensional view of the shell.

[0095] Figure 14This is a plan view illustrating a sound device according to another embodiment of the present disclosure.

[0096] Figure 15 It is along Figure 14 The cross-sectional view shown is taken from line CC′.

[0097] Figure 16 This is a conceptual diagram illustrating a location-based sound output from a sound device according to another embodiment of the present disclosure.

[0098] Figure 17 An example of a vibration device according to an embodiment of the present disclosure is shown.

[0099] Figure 18 It is along Figure 17 The cross-sectional view of line DD′ shown.

[0100] Figure 19 This is an example Figure 18 A three-dimensional view of the piezoelectric vibration component is shown.

[0101] Figure 20A This is a perspective view illustrating a piezoelectric vibration portion according to another embodiment of the present disclosure.

[0102] Figure 20B This is a perspective view illustrating a piezoelectric vibration portion according to another embodiment of the present disclosure.

[0103] Figure 20C This is a perspective view illustrating a piezoelectric vibration portion according to another embodiment of the present disclosure.

[0104] Figure 20D This is a perspective view illustrating a piezoelectric vibration portion according to another embodiment of the present disclosure.

[0105] Figure 21 A vibration device according to another embodiment of the present disclosure is illustrated.

[0106] Figure 22 It is along Figure 21 The cross-sectional view of line EE′ shown.

[0107] Figure 23 A vibration device according to another embodiment of the present disclosure is illustrated.

[0108] Figure 24 This is an example Figures 14 to 16 The diagram shows a plan view of the vibration device.

[0109] Figure 25 It is along Figure 24 The cross-sectional view shown is taken from line FF′.

[0110] Figure 26A vibration device according to another embodiment of the present disclosure is illustrated.

[0111] Figure 27 A vibration device according to another embodiment of the present disclosure is illustrated.

[0112] Figure 28 It is along Figure 27 The cross-sectional view shown is taken from line GG′.

[0113] Figure 29 It is along Figure 27 The cross-sectional view shown is taken from line HH′.

[0114] Figure 30 A vibration device according to another embodiment of the present disclosure is illustrated.

[0115] Figure 31 It is along Figure 30 The cross-sectional view taken by line II′ is shown.

[0116] Figure 32 A vibration device according to another embodiment of the present disclosure is illustrated.

[0117] Figure 33 An example of a sound device according to another embodiment of the present disclosure is shown.

[0118] Figure 34 Examples Figure 33 The main cable and the first signal cable to the nth signal cable are shown.

[0119] Figure 35 This is an example Figure 33 The waveform of the output signal of the sound data generation circuit is shown.

[0120] Figure 36 An example of a sound device according to another embodiment of the present disclosure is shown.

[0121] Figure 37 An example of a sound system according to an embodiment of the present disclosure is shown.

[0122] Figure 38 Examples Figure 37 The panel driver circuit and speaker device shown are for the display device.

[0123] Figure 39 This is a conceptual diagram illustrating an orientation-based sound system according to an embodiment of the present disclosure.

[0124] Throughout the accompanying drawings and detailed description, unless otherwise stated, the same reference numerals shall be understood to refer to the same elements, features, and structures. For clarity, illustrative purposes, the relative dimensions and illustrations of these elements may be exaggerated. Detailed Implementation

[0125] The embodiments of this disclosure will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, detailed descriptions of well-known functions or structures related to this document will be omitted where such descriptions are determined to unnecessarily obscure the spirit of the inventive concept. The described progression of processing steps and / or operations is an example; however, the order of steps and / or operations is not limited to the order set forth herein and can be varied as is known in the art, except that they must occur in a specific order. The same reference numerals always refer to the same elements. The names of the various elements used in the following description are chosen solely for convenience of writing the specification and may therefore differ from those used in actual products.

[0126] The advantages and features of this disclosure, and their implementation methods, will be illustrated by the embodiments described below in conjunction with the accompanying drawings. However, this disclosure may be embodied in different forms and should not be construed as 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 limited only by the scope of the claims.

[0127] Throughout the accompanying drawings and detailed description, unless otherwise stated, the same reference numerals shall be understood to refer to the same elements, features, and structures. For clarity, illustrative purposes, the relative dimensions and illustrations of these elements may be exaggerated.

[0128] The shapes, dimensions, scales, angles, and quantities disclosed in the accompanying drawings used to describe embodiments of this disclosure are merely examples, and therefore, this disclosure is not limited to the illustrated details. Similar reference numerals always refer to similar elements. In the following description, detailed descriptions of related known functions or constructions will be omitted where it is determined that such descriptions would unnecessarily obscure the focus of this disclosure. When terms such as “comprising,” “having,” “including,” “containing,” “constituting,” “made of,” “formed from,” etc., are used, one or more additional elements may be added unless terms such as “only” are used. Singular terms may include plural forms unless the context clearly indicates otherwise.

[0129] When interpreting an element, even if no explicit description of the error or tolerance range is provided, the element is interpreted as including such an error or tolerance range.

[0130] Where positional relationships are described, for example, when using terms such as "above," "on top," "below," "under," "near," "adjacent," "next to," "beside," "next to," etc., 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 "closely," "directly," or "tightly" are used. For example, when a structure is described as being "above," "below," "under," "near," "near," "adjacent," "next to," or "next to," "beside," or "next to," this description should be interpreted to include situations where these structures are in contact with each other and situations where a third structure is positioned or located between them. Furthermore, the terms "left," "right," "top," "bottom," "downward," "upward," "above," "below," etc., refer to any frame of reference.

[0131] When describing temporal relationships, such as when time sequence is described as "after", "following", "next", and "before", discontinuous situations may be included unless more restrictive terms such as "just", "immediately after", or "directly" are used.

[0132] It will 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 referred to as a second element, and similarly, a second element may be referred to as a first element.

[0133] In describing the elements of this disclosure, the terms “first,” “second,” “A,” “B,” “(a),” “(b),” etc., may be used. These terms are intended to identify corresponding elements from other elements, and the basis, order, or number of corresponding elements shall not be limited by these terms.

[0134] Unless otherwise stated, the expression “connected,” “joined,” or “bonded” to another element or layer means that the element or layer may not only be directly connected, joined, bonded, contacted, or overlapped with another element or layer, but also indirectly connected, joined, or bonded to another element or layer, and one or more intervening elements or layers are disposed or located between these elements or layers.

[0135] Unless otherwise stated, the description of an element or layer as "in contact" or "overlapping" with another element or layer means that the element or layer may not only be in direct contact or overlap with another element or layer, but also may be indirect contact or overlap with another element or layer, and one or more intervening elements or layers may be disposed or located between these elements or layers.

[0136] The term "at least one" should be understood to include any combination of one or more of the associated listed items. For example, "at least one of the first, second, and third items" means a combination of all items derived from two or more of the first, second, and third items, as well as the first, second, or third item.

[0137] As will be fully understood by those skilled in the art, the features of the various embodiments of this disclosure can be partially or entirely linked or combined with each other, and can interoperate and be technically driven by each other in various ways. The embodiments of this disclosure can be implemented independently of each other or together in an interdependent relationship.

[0138] Unless otherwise defined, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the exemplary embodiments pertain. It will be further understood that terms such as those defined in common dictionaries shall be interpreted as having a meaning consistent, for example, with their meaning in the context of the relevant field, and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein. For example, the term “part” may be applied to, for example, a single circuit or structure, an integrated circuit, a computational block of a circuit arrangement, or any structure constructed to perform the described functions, as would be understood by one of ordinary skill in the art.

[0139] In the following, a sound device and a sound system including the sound device according to embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. When adding reference numerals to elements in each drawing, although the same elements are illustrated in other drawings, similar reference numerals may refer to similar elements. Furthermore, for ease of description, the scale, size, and thickness of each element shown in the drawings differ from the actual scale; therefore, embodiments of the present disclosure are not limited to the scales shown in the drawings. All components of each device according to all embodiments of the present disclosure are operatively connected and constructed.

[0140] Figure 1 This is a perspective view illustrating a sound device 10 according to an embodiment of the present disclosure. Figure 2 It is along Figure 1 The cross-sectional view shown is taken from line AA′. Figure 3 This is an example Figure 2 The diagram shows the layout of the vibration device.

[0141] Reference Figures 1 to 3 According to embodiments of the present disclosure, the sound device 10 may include a vibrating member 110 and a vibrating device 130.

[0142] The vibrating component 110 can output sound based on the vibration of the vibrating device 130. For example, the vibrating component 110 may be referred to as a vibrating object, a vibrating target, a vibrating plate, a vibrating panel, a sound vibrating plate, a sound output component, or a sound output component, etc., but the embodiments of this disclosure are not limited thereto. For example, the vibrating component 110 may include any of the following: a display panel including pixels configured to display images, a screen panel on which images are projected from a display device, a lighting panel, a sign panel, glass, or a mirror, but the embodiments of this disclosure are not limited thereto.

[0143] The vibrating member 110 may be constructed to be transparent, translucent, or opaque. The vibrating member 110 according to embodiments of this disclosure may include metallic and / or non-metallic materials (or composite non-metallic materials) having material properties suitable for outputting sound based on vibration. The metallic material of the vibrating member 110 according to embodiments of this disclosure may include any one or more of stainless steel, aluminum (Al), aluminum alloys, magnesium (Mg), magnesium alloys, and lithium-magnesium (Mg-Li) alloys, but embodiments of this disclosure are not limited thereto. The non-metallic material (or composite non-metallic material) of the vibrating member 110 may include one or more of glass, plastic, fiber, leather, wood, cloth, rubber, and paper, but embodiments of this disclosure are not limited thereto.

[0144] The vibrating member 110 according to embodiments of the present disclosure can realize a sign panel such as a simulated sign, like an advertising sign, poster, or bulletin board. For example, when the vibrating member 110 realizes a sign panel, the simulated sign may include sign content such as statements, pictures, and symbols. The sign content can be disposed at the vibrating member 110 for visibility. For example, the sign content can be directly attached to one or more of a first surface (or front surface) 110a and a second surface (or rear surface) 110b that is different from (or opposite to) the first surface 110a. For example, the sign content can be printed on a medium such as paper, and the medium on which the sign content is printed can be directly attached to one or more of the first surface 110a and the second surface 110b of the vibrating member 110. For example, when the sign content is attached to the second surface 110b of the vibrating member 110, the vibrating member 110 can be constructed of a transparent material.

[0145] The vibrating member 110 according to embodiments of the present disclosure may include a plate structure having a quadrilateral shape. The vibrating member 110 may have a horizontal length (or width length) parallel to a first direction X and a vertical length (or length length) parallel to a second direction Y intersecting the first direction X. For example, the vibrating member 110 may have a rectangular shape, wherein the horizontal length is relatively longer than the vertical length. However, the present disclosure is not limited thereto, and the vibrating member 110 may have a square shape with the same horizontal and vertical lengths.

[0146] The vibration member 110 according to embodiments of the present disclosure can be configured to have a plurality of natural vibration frequencies (or inherent frequencies). The vibration member 110 may include a non-planar structure, and therefore may have a plurality of natural vibration frequencies. The vibration member 110 may have a plurality of natural vibration frequencies that are different for each region (or area). For example, the vibration member 110 may have a plurality of natural vibration frequencies that are different based on the thickness of each region (or area).

[0147] The vibration member 110 according to embodiments of the present disclosure may include a first surface 110a and a second surface 110b, and one or more of the first surface 110a and the second surface 110b may include a non-planar structure.

[0148] According to embodiments of the present disclosure, in the vibration member 110, the first surface 110a may include a non-planar structure, while the second surface 110b may include a planar structure. For example, the first surface 110a of the vibration member 110 may include an inclined surface. For example, the first surface 110a of the vibration member 110 may be inclined relative to the second surface 110b. According to embodiments of the present disclosure, in the vibration member 110, the first surface 110a may include a planar structure, while the second surface 110b may include a non-planar structure. For example, the second surface 110b of the vibration member 110 may include an inclined surface. For example, the second surface 110b of the vibration member 110 may include an inclined surface inclined relative to the first surface 110a.

[0149] According to embodiments of this disclosure, in the vibrating member 110, the thickness T1 of the first edge portion E1 may be different from the thickness T2 of the second edge portion E2 that is parallel to or opposite to the first edge portion E1. For example, the thickness T1 of the first edge portion E1 may be greater than the thickness T2 of the second edge portion E2. For example, the thickness T1 of the vibrating member 110 may gradually decrease in the direction from the first edge portion E1 to the second edge portion E2. For example, in the vibrating member 110, the first edge portion E1 may be a first end, one side, one end, or a first short side, and the second edge portion E2 may be a second end, the other side, the other end, or a second short side.

[0150] The vibration device 130 may be configured to vibrate autonomously (or displace or drive) based on an applied electrical signal (or voice signal), or it may be configured to vibrate (or displace or drive) a vibration member (or vibrating plate or vibrating object) 110. For example, the vibration device 130 may be referred to as a vibration structure, vibrator, vibration generating device, vibration generating apparatus, vibration generator, sound generator, sound device, sound generating apparatus, or sound generator, but the embodiments disclosed herein are not limited thereto.

[0151] The vibration device 130 according to embodiments of this disclosure may include a piezoelectric material (or electroactive material) having piezoelectric properties. The vibration device 130 may vibrate (or displace or drive) the vibration member 110 based on the vibration (or displacement) of the piezoelectric material generated by an electrical signal (or voice signal) applied thereto. For example, the vibration device 130 may vibrate (or displace or drive) by alternating and repeated contraction and expansion through the piezoelectric effect (or piezoelectric properties). For example, the vibration device 130 may vibrate (or displace or drive) in the vertical direction (or thickness direction) Z by alternating and repeated contraction and expansion through the inverse piezoelectric effect.

[0152] The vibration device 130 according to embodiments of the present disclosure may include one or more vibration devices 131 of the piezoelectric type.

[0153] One or more vibration devices 131 according to embodiments of the present disclosure can be configured to be flexible. For example, one or more vibration devices 131 can be configured to be bent into a non-planar shape including curved surfaces. For example, one or more vibration devices 131 according to embodiments of the present disclosure can 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 embodiments of the present disclosure are not limited thereto.

[0154] One or more vibration devices 131 according to embodiments 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, one or more vibration devices 131 may include a square shape in which the first length and the second length are the same. However, embodiments of the present disclosure are not limited thereto, and one or more vibration devices 131 may include a rectangular shape, a non-quadrilateral shape, a circular shape, or an elliptical shape in which one of the first length and the second length is greater than the other.

[0155] According to embodiments of the present disclosure, the vibration device 130 can be connected or coupled to the second surface 110b of the vibration member 110 via the bonding member 120.

[0156] The bonding member 120 may be disposed between the vibrating member 110 and the vibrating device 130. For example, the bonding member 120 may be disposed between the vibrating member 110 and one or more vibrating devices 131. For example, the bonding member 120 may connect or attach one or more vibrating devices 131 to the second surface 110b of the vibrating member 110.

[0157] The adhesive member 120 according to embodiments of the present disclosure may include an adhesive layer (or sticky layer) with good adhesion or bonding strength. For example, the adhesive member 120 may include double-sided tape, double-sided foam pad, or adhesive sheet. For example, when the adhesive member 120 includes an adhesive sheet (or adhesive layer), the adhesive member 120 may include only the adhesive layer or sticky layer, without including a base component such as a plastic material.

[0158] The adhesive layer (or viscous layer) of the adhesive member 120 according to embodiments of the present disclosure may include epoxy resin, acrylic, silicone or polyurethane, but embodiments of the present disclosure are not limited thereto.

[0159] According to another embodiment of the present disclosure, the adhesive layer (or viscous layer) of the adhesive member 120 may include a pressure-sensitive adhesive (PSA), an optically transparent adhesive (OCA), or an optically transparent resin (OCR), but the embodiments of the present disclosure are not limited thereto.

[0160] The sound device 10 according to embodiments of the present disclosure may further include a housing 150 and a connecting member 140.

[0161] The housing 150 may be disposed on the rear surface of the vibrating member 110 to cover the second surface 110b of the vibrating member 110 and one or more vibrating devices 131. The housing 150 may include a receiving space 150s for accommodating the vibrating devices 130 and may have a box shape with one side open.

[0162] The housing 150 according to embodiments of this disclosure may include one or more of metallic materials and non-metallic materials (or composite non-metallic materials), but embodiments of this disclosure are not limited thereto. For example, housing 150 may include one or more of metallic materials, plastics, and wood, but embodiments of this disclosure are not limited thereto. For example, housing 150 may be referred to by terms such as shell, housing, shell member, housing component, housing, cover, sealing member, sealing cap, sealing box, or speaker, but embodiments of this disclosure are not limited thereto. For example, the receiving space 150s of housing 150 may be referred to by terms such as gap space, air gap, vibration space, sound space, speaker, or sealing space, but embodiments of this disclosure are not limited thereto.

[0163] According to embodiments of the present disclosure, the housing 150 can retain the impedance component based on the air acting on the vibrating member 110 when the vibrating member 110 vibrates. For example, the air near the vibrating member 110 can resist the vibration of the vibrating member 110 and can act as an impedance component having a reactive component and different resistances based on frequency. Therefore, the housing 150 can be constructed as an enclosed space surrounding the vibrating device 130, thereby retaining the impedance component (or air impedance or acoustic impedance) acting on the vibrating member 110 due to the air, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched audio band generated based on the vibration of the vibrating member 110, and enhancing the sound quality of the high-pitched audio band generated based on the vibration of the vibrating member 110.

[0164] According to embodiments of the present disclosure, the housing 150 may include a base plate portion 151 and a side portion 152.

[0165] The base plate portion 151 may be disposed on the rear surface of the vibrating member 110 to cover the second surface 110b of the vibrating member 110 and the vibrating device 130. For example, the base plate portion 151 may be configured to be spaced apart from the second surface 110b of the vibrating member 110 and the vibrating device 130. For example, the base plate portion 151 may be referred to by terms such as housing plate or housing base plate portion, but embodiments of this disclosure are not limited thereto.

[0166] Side portion 152 may be connected to the peripheral portion of base plate portion 151. For example, side portion 152 may bend from the peripheral portion of base plate portion 151 in a third direction Z parallel to the thickness direction of vibrating member 11. For example, side portion 152 may be parallel to the third direction Z, or may be inclined from the third direction Z. For example, side portion 152 may include a first side portion to a fourth side portion. For example, side portion 152 may be referred to as a housing side surface or housing sidewall, etc., but embodiments of this disclosure are not limited thereto.

[0167] The side portion 152 can be integrated into the base plate portion 151. For example, the base plate portion 151 and the side portion 152 can be integrated as one piece, so that the receiving space 150s surrounded by the side portion 152 can be provided on the base plate portion 151. Therefore, the base plate portion 151 and the side portion 152 can have a box shape with one side open.

[0168] The side portion 152 can be connected or coupled to the second surface 110b of the vibrating member 110 via the connecting member 140. For example, the side portion 152 can be connected or coupled to the peripheral portion of the second surface 110b of the vibrating member 110 via the connecting member 140.

[0169] The housing 150 according to an embodiment of the present disclosure may also include a patterned portion 150p.

[0170] The patterned portion 150p can be formed on the base plate surface (or bottom surface) of the base plate portion 151, thereby increasing the rigidity of the housing 150. For example, the patterned portion 150p can include an uneven structure formed on the base plate surface of the base plate portion 151. For example, the patterned portion 150p can be referred to by terms such as an uneven patterned portion, a base plate patterned portion, or a reinforcing patterned portion, but embodiments of this disclosure are not limited thereto.

[0171] The patterned portion 150p according to embodiments of the present disclosure may include a plurality of groove lines. The plurality of groove lines may be formed recessed from the top surface (or surface) of the base plate portion 151 to have predetermined intervals in one or more directions: a first direction X, a second direction Y, and a diagonal direction between the first direction X and the second direction Y. For example, the patterned portion 150p may include a lattice pattern based on the intersection between each of the plurality of groove lines parallel to the first direction X and each of the plurality of groove lines parallel to the second direction Y.

[0172] The housing 150 according to an embodiment of the present disclosure may further include a connecting frame portion 153.

[0173] The connecting frame portion 153 can be connected to the side portion 152. For example, the connecting frame portion 153 can be arranged parallel to the base plate portion 151 and can be connected to the side portion 152. The connecting frame portion 153 can be bent from one end of the side portion 152 to be parallel to a first direction X and can extend along the first direction X to have a certain length. The connecting frame portion 153 may include an opening corresponding to a receiving space 150s provided by the side portion 152 on the base plate portion 151. The side portion 152 can be vertically or obliquely connected between the base plate portion 151 and the connecting frame portion 153. The base plate portion 151, the side portion 152 and the connecting frame portion 153 can be integrated (or arranged) as a single unit, and therefore, the base plate portion 151, the side portion 152 and the connecting frame portion 153 can have a box shape with one side open. For example, the connecting frame portion 153 can be referred to by terms such as a shell connecting portion, a shell eaves portion or a shell skirt portion, but the embodiments of this disclosure are not limited thereto.

[0174] According to embodiments of this disclosure, when the housing 150 includes a connecting frame portion 153, a connecting member 140 may be disposed between the connecting frame portion 153 of the housing 150 and the second surface 110b of the vibrating member 110. For example, the connecting member 140 may connect or attach a peripheral portion of the second surface 110b of the vibrating member 110 to the connecting frame portion 153.

[0175] According to embodiments of the present disclosure, the connecting member 140 disposed between the housing 150 and the vibrating member 110 can be configured to minimize or prevent the transmission of vibrations from the vibrating member 110 to the housing 150. The connecting member 140 may include material properties suitable for blocking vibrations. For example, the connecting member 140 may include a resilient material. For example, the connecting member 140 may include a material with elasticity for vibration absorption (or shock absorption). The connecting member 140 according to embodiments of the present disclosure may be constructed of polyurethane or polyolefin materials, but embodiments of the present disclosure are not limited thereto. For example, the connecting member 140 according to embodiments of the present disclosure 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.

[0176] According to embodiments of the present disclosure, the connecting member 140 may have a thickness for minimizing or preventing the transmission of vibrations from the vibrating member 110 to the housing 150. For example, the connecting member 140 may be configured to have a thickness relatively greater than that of the vibrating member 110. The connecting member 140 may absorb the vibrations of the vibrating member 110 based on its thickness and elasticity, thereby minimizing or preventing the transmission of vibrations from the vibrating member 110 to the housing 150. Furthermore, the connecting member 140 may prevent physical contact (or friction) between the vibrating member 110 and the housing 150, thus preventing the occurrence of noise (or disturbance) caused by physical contact (or friction) between the vibrating member 110 and the housing 150. For example, the connecting member 140 may be referred to as a buffer member, an elastic member, a damping member, a vibration absorption member, or a vibration blocking member, etc., but embodiments of the present disclosure are not limited thereto.

[0177] According to embodiments of the present disclosure, one or more vibration devices 131 can vibrate based on a vibration drive signal (or sound signal) provided from a sound processing circuit, causing the vibration member 110 to vibrate, thereby generating or outputting sound. In the sound generated based on the vibration of the vibration member 110, the sound pressure level characteristics can be increased based on the vibration of the vibration member 110 having various inherent vibration frequencies, and the reproducible pitch frequency band can be extended. For example, when the vibration member 110, having a non-planar structure, vibrates, high-pitched frequency bands of sound can be generated or output in relatively thick regions, while low-pitched frequency bands of sound can be generated or output in relatively thin regions.

[0178] According to embodiments of the present disclosure, one or more vibration devices 131 may be connected or coupled to non-central portions of the vibration member 110 other than the central portion CP. For example, the central portion CP of each of the one or more vibration devices 131 may be disposed between the central portion CP of the vibration member 110 and the edge portions E1 and E2.

[0179] According to embodiments of the present disclosure, sound waves (or acoustic vibrations) generated by the vibration of a vibrating member 110 based on the vibration of one or more vibrating devices 131 can propagate and travel radially from the vibrating device 130. The sound waves can be referred to as advancing waves. Advancing waves can be reflected from the connecting member 140, thus generating reflected waves that travel in the opposite direction to the advancing waves. The reflected waves can overlap and interfere with the advancing waves, and standing waves can be generated where the overlapping sound waves do not travel and remain at a certain position. Due to the standing waves, the sound pressure level can be reduced, and therefore the sound characteristics can be reduced. To reduce standing waves, one or more vibrating devices 131 according to embodiments of the present disclosure can be connected or coupled to non-central portions of the vibrating member 110 other than the central portion CP. Therefore, the vibrating devices 131 can be connected to non-central portions of the vibrating member 110 other than the central portion CP, and the vibrating member 110 can have a different inherent vibration frequency for each region (or area) based on a non-planar structure. Therefore, the overlap and interference of reflected waves in each frequency region can be prevented or minimized, thereby reducing the standing waves in each frequency region to enhance sound characteristics.

[0180] According to embodiments of the present disclosure, one or more vibration devices 131 may be disposed between the first edge portion E1 and the central portion CP of the vibration member 110. For example, one or more vibration devices 131 may be connected to a relatively thick region in the non-central portion of the vibration member 110, so that the sound generated based on the vibration of the vibration member 110 can have high sound pressure level characteristics in the high-pitched audio band. For example, a sound device 10 including one or more vibration devices 131 disposed between the first edge portion E1 and the central portion CP of the vibration member 110 can reduce the adverse effects caused by the zoned vibration of the vibration member 110 and can enhance the sound characteristics and / or sound pressure level characteristics in the high-pitched audio band.

[0181] According to another embodiment of this disclosure, one or more vibration devices 131 may be disposed between the second edge portion E2 and the center portion CP of the vibration member 110. For example, one or more vibration devices 131 may be connected to a relatively thin region in the non-central portion of the vibration member 110, so that the sound generated based on the vibration of the vibration member 110 can have high sound pressure level characteristics in the low-pitched audio band. For example, the sound device 10 including one or more vibration devices 131 disposed between the second edge portion E2 and the center portion CP of the vibration member 110 can reduce the adverse effects caused by the zoned vibration of the vibration member 110 and can enhance the sound characteristics and / or sound pressure level characteristics in the low-pitched audio band.

[0182] According to another embodiment of this disclosure, the connecting member 140 can be configured to minimize or prevent the transmission of vibration of the vibrating member 110 to the housing 150, and reduce the reflection of sound waves generated and input based on the vibration of the vibrating member 110.

[0183] According to another embodiment of the present disclosure, the connecting member 140 may include a first connecting member 140a and a second connecting member 140b.

[0184] The first connecting member 140a may be disposed between the vibrating member 110 and the housing 150, surrounded by the second connecting member 140b. For example, the first connecting member 140a may be disposed inward (or inwardly) from the second connecting member 140b. The first connecting member 140a may be configured to have a lower (or smaller) hardness than the second connecting member 140b. For example, the first connecting member 140a may include double-sided polyurethane tape, double-sided polyurethane foam tape, or double-sided sponge tape, etc., but embodiments of this disclosure are not limited thereto.

[0185] The second connecting member 140b may be disposed between the vibrating member 110 and the housing 150 to surround the first connecting member 140a. For example, the second connecting member 140b may be disposed outward (or partially outward) from the first connecting member 140a. The second connecting member 140b may be configured to have a harderness than the first connecting member 140a. For example, the second connecting member 140b may include double-sided polyolefin tape, double-sided polyolefin foam tape, double-sided acrylic tape, or double-sided acrylic foam tape, etc., but embodiments of this disclosure are not limited thereto.

[0186] According to another embodiment of this disclosure, the connecting member 140 can absorb the sound generated and input based on the vibration of the vibrating member 110 through the relatively flexible first connecting member 140a disposed inward from the relatively rigid (or hard) second connecting member 140b, thus minimizing the reflected sound (or reflected wave) generated by the connecting member 140. Therefore, 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 130 can be reduced, thereby reducing the flatness of the sound pressure level.

[0187] In a connecting member 140 according to another embodiment of the present disclosure, a relatively rigid second connecting member 140b may be disposed inward from a relatively soft first connecting member 140a. In this case, the sound pressure level in a specific tonal frequency band of sound can be reduced. For example, the sound pressure level in the tonal frequency bands of 2 kHz to 5 kHz and 7 kHz to 12 kHz can be reduced due to reflected sound (or reflected waves) generated by the relatively rigid second connecting member 140b. Therefore, when it is necessary to reduce the sound pressure level in the tonal frequency bands of 2 kHz to 5 kHz and 7 kHz to 12 kHz based on the shape and size of the vibrating member 110, the relatively rigid second connecting member 140b may be disposed inward from the relatively soft first connecting member 140a, and the flatness of the sound pressure level can be improved based on the reduction of the sound pressure level in the tonal frequency bands of 2 kHz to 5 kHz and 7 kHz to 12 kHz generated by the second connecting member 140b.

[0188] Additionally, the sound device 10 according to embodiments of the present disclosure may also include a sound-absorbing member 155.

[0189] The sound-absorbing component 155 can be disposed between the housing 150 and the vibration device 130. The sound-absorbing component can be disposed in the receiving space 150s of the housing 150 to cover the rear surface of the vibration device 130.

[0190] The sound-absorbing member 155 according to embodiments of the present disclosure may be disposed on or attached to the base plate portion 151 of the housing 150. For example, the sound-absorbing member 155 may be disposed on or attached to the base plate surface of the base plate portion 151 of the housing 150. For example, the sound-absorbing member 155 may be configured to cover the patterned portion 150p constructed on the base plate portion 151 of the housing 150. For example, the sound-absorbing member 155 may include non-woven fabric or foam pad, but embodiments of the present disclosure are not limited thereto.

[0191] According to embodiments of this disclosure, the sound-absorbing member 155 can attenuate frequency resonances of the low-pitched audio band occurring in the space between the vibrating member 110 and the housing 150 or in the receiving space 150s of the housing 150. Therefore, the humming phenomenon caused by interference between frequencies of the low-pitched audio band can be minimized to enhance sound quality. Furthermore, when the vibrating member 110 vibrates (or is vibrating), the sound-absorbing member 155 can prevent direct contact between the vibrating device 130 and the base plate portion 151 of the housing 150, thereby preventing damage or breakage of the vibrating device 130.

[0192] Figure 4 It is along Figure 1 Another cross-sectional view taken from line AA′ shown. Figure 4 An example of a sound device according to another embodiment of the present disclosure is shown. Figure 4 Examples are shown by modifying Figure 2 The embodiment is implemented based on the structure of the vibrating member shown. Therefore, in the following description, repeated descriptions of other components besides the vibrating member and related elements can be omitted.

[0193] Reference Figure 1 and Figure 4 According to another embodiment of the present disclosure, the vibration member 110 may include a first surface 110a and a second surface 110b, and one or more of the first surface 110a and the second surface 110b may include a non-planar structure. For example, the first surface 110a of the vibration member 110 may include a non-planar structure, and the second surface 110b of the vibration member 110 may include a planar structure.

[0194] According to another embodiment of the present disclosure, the first surface 110a of the vibrating member 110 may include a curved structure, which includes one or more protrusions 110a1.

[0195] The first surface 110a of the vibrating member 110 may include a protruding portion 110a1, a first curved surface portion 110c1 located between the protruding portion 110a1 and the first edge portion E1, and a second curved surface portion 110c2 located between the protruding portion 110a1 and the second edge portion E2.

[0196] The protruding portion 110a1 may be constructed between the first edge portion E1 and the center portion CP of the vibrating member 110, but the embodiments of the present disclosure are not limited thereto, and may also be constructed between the second edge portion E2 and the center portion CP of the vibrating member 110.

[0197] The first surface portion 110c1 and the second surface portion 110c2 can be constructed to include different curvatures (or radii of curvature). For example, each of the first surface portion 110c1 and the second surface portion 110c2 can be constructed to include one or more curvatures (or radii of curvature).

[0198] The vibrating member 110 may have the thickest thickness T3 in the protruding portion 110a1 and the thinnest thickness T4 in the first edge portion E1 or the second edge portion E2. For example, the vibrating member 110 may have the thinnest thickness T4 in the second edge portion E2.

[0199] According to another embodiment of this disclosure, the vibration member 110 may be based on a curved surface structure including a protrusion 110a1 constructed at a first surface 110a, and thus have a plurality of inherent vibration frequencies. The vibration member 110 may have a plurality of inherent vibration frequencies that are different for each region (or area). For example, the vibration member 110 may have a plurality of inherent vibration frequencies that are different based on the thickness of each region (or area).

[0200] According to another embodiment of the present disclosure, the vibration device 130 may include one or more vibration devices 131 for vibrating the protrusion 110a1 of the vibration member 110.

[0201] One or more vibration devices 131 may be connected or coupled to the second surface 110b of the vibration member 110 corresponding to the protrusion 110a1 of the vibration member 110.

[0202] One or more vibrating devices 131 can cause the vibrating member 110 to vibrate in the region corresponding to the protrusion 110a1, thus generating or outputting sound based on the vibration of the vibrating member 110. In the sound generated based on the vibration of the vibrating member 110, the sound pressure level characteristics can be increased based on the vibration of the vibrating member 110 having various inherent vibration frequencies, and the reproducible pitch audio band can be extended. For example, when the vibrating member 110 with a non-planar structure vibrates, high-pitched audio bands can be generated or output in a relatively thick region, and low-pitched audio bands can be generated or output in a relatively thin region.

[0203] According to another embodiment of this disclosure, one or more vibration devices 131 may be connected or coupled to non-central portions of the vibration member 110 other than the central portion CP, corresponding to the protrusions 110a1 of the vibration member 110. For example, the central portion of each of the one or more vibration devices 131 may be positioned or aligned at the top (or vertex) of the protrusions 110a1 of the vibration member 110. Thus, when one or more vibration devices 131 vibrate, the overlap and interference of reflected waves in each frequency region occurring in the vibration member 110 can be prevented or minimized, thereby reducing the standing wave in each frequency region to enhance sound characteristics.

[0204] According to embodiments of the present disclosure, one or more vibration devices 131 may be disposed between the first edge portion E1 and the center portion CP of the vibration member 110. For example, one or more vibration devices 131 may be connected to a relatively thick region in the non-central portion of the vibration member 110, so that the sound generated based on the vibration of the vibration member 110 can have high sound pressure level characteristics in the high-pitched audio band. For example, a sound device 10 including one or more vibration devices 131 disposed between the first edge portion E1 and the center portion CP of the vibration member 110 can enhance the sound characteristics and / or sound pressure level characteristics in the high-pitched audio band.

[0205] According to another embodiment of this disclosure, one or more vibration devices 131 may be disposed between the second edge portion E2 and the center portion CP of the vibration member 110. For example, one or more vibration devices 131 may be connected to a relatively thin region outside the center portion of the vibration member 110, so that the sound generated based on the vibration of the vibration member 110 may have high sound pressure level characteristics in the low-pitched audio band. For example, a sound device 10 including one or more vibration devices 131 disposed between the second edge portion E2 and the center portion CP of the vibration member 110 may enhance the sound characteristics and / or sound pressure level characteristics in the low-pitched audio band.

[0206] Figure 5 It is along Figure 1 Another cross-sectional view taken by line AA′ shown. Figure 5 An example of a sound device according to another embodiment of the present disclosure is shown. Figure 5 Examples are shown by modifying Figure 2 The embodiment is implemented based on the structure of the vibrating member shown. Therefore, in the following description, repeated descriptions of other components besides the vibrating member and related elements can be omitted.

[0207] Reference Figure 1 and Figure 5 According to another embodiment of the present disclosure, the sound device 10 may include a vibrating member 110 and a vibrating device 130.

[0208] The vibrating member 110 may include a first surface 110a and a second surface 110b, and one or more of the first surface 110a and the second surface 110b may include a non-planar structure. For example, the first surface 110a of the vibrating member 110 may include a non-planar structure, and the second surface 110b of the vibrating member 110 may include a planar structure.

[0209] According to another embodiment of the present disclosure, the first surface 110a of the vibration member 110 may include a curved structure, the curved structure including a plurality of protrusions 110a1 and 110a2 and a recess 110c located between the plurality of protrusions 110a1 and 110a2.

[0210] According to another embodiment of the present disclosure, the first surface 110a of the vibration member 110 may include a first protruding portion 110a1, a second protruding portion 110a2, and a recessed portion 110c located between the first protruding portion 110a1 and the second protruding portion 110a2.

[0211] The first protrusion 110a1 can be constructed between the first edge portion E1 and the center portion CP of the vibrating member 110. For example, the first protrusion 110a1 can be constructed close to the first edge portion E1.

[0212] The second protrusion 110a2 can be constructed between the second edge portion E2 and the center portion CP of the vibrating member 110. For example, the second protrusion 110a2 can be constructed close to the second edge portion E2.

[0213] The first protrusion 110a1 and the second protrusion 110a2 may have an asymmetrical structure (or a horizontally asymmetrical structure) relative to the center line ML of the vibrating member 110 parallel to the first direction X (or a reference line passing through the central portion of the vibrating member 110 in the second direction Y). However, embodiments of this disclosure are not limited thereto, and the first protrusion 110a1 and the second protrusion 110a2 may have a symmetrical structure (or a horizontally symmetrical structure) relative to the center line ML of the vibrating member 110.

[0214] The recessed portion 110c can be constructed between the first protruding portion 110a1 and the second protruding portion 110a2. The recessed portion 110c constructed between the first protruding portion 110a1 and the second protruding portion 110a2 may include the central portion CP of the vibrating member 110. The recessed portion 110c may have an asymmetrical or symmetrical structure relative to the centerline ML of the vibrating member 110.

[0215] The vibrating member 110 may have the thickest thickness T5 in one or more of the first protrusion 110a1 and the second protrusion 110a2, and may have the thinnest thickness T4 in the recessed portion 110c. For example, the vibrating member 110 may have the thickest thickness T5 in the first protrusion 110a1.

[0216] According to another embodiment of this disclosure, the vibration member 110 may have multiple inherent vibration frequencies based on a curved surface structure constructed on the first surface 110a, including a first protrusion 110a1, a second protrusion 110a2, and a recess 110c. The vibration member 110 may have multiple inherent vibration frequencies that are different for each region (or area). For example, the vibration member 110 may have multiple inherent vibration frequencies that are different based on the thickness of each region (or area).

[0217] According to another embodiment of the present disclosure, the vibration device 130 may include a plurality of vibration devices 131 for vibrating each of a plurality of protrusions 110a1 and 110a2 of the vibration member 110.

[0218] Each of the plurality of vibration devices 131 may be connected or coupled to the second surface 110b of the vibration member 110 in a corresponding manner to each of the plurality of protrusions 110a1 and 110a2 constructed in the vibration member 110. For example, each of the plurality of vibration devices 131 may be connected or coupled to the second surface 110b of the vibration member 110 in a corresponding manner to each of the first protrusion 110a1 and the second protrusion 110a2.

[0219] Each of the plurality of vibrating devices 131 can vibrate the vibrating member 110 in a region corresponding to the corresponding protrusions 110a1 and 110a2, thereby generating or outputting sound based on the vibration of the vibrating member 110. In the sound generated based on the vibration of the vibrating member 110, the sound pressure level characteristics can be increased based on the vibration of the vibrating member 110 having various inherent vibration frequencies, and the reproducible pitch audio band can be extended. For example, when the vibrating member 110, which has a non-planar structure, vibrates, high-pitched audio bands can be generated or output in relatively thick regions, and low-pitched audio bands can be generated or output in relatively thin regions.

[0220] Therefore, the vibration device 130 according to another embodiment of the present disclosure may include a plurality of vibration devices 131 corresponding to each of the plurality of protrusions 110a1 and 110a2 of the vibration member 110. Thus, the adverse effects caused by the zoned vibration of the vibration member 110 can be reduced and the sound characteristics and / or sound pressure level characteristics of the high-pitched audio band can be enhanced.

[0221] Figure 6 It is along Figure 1 Another cross-sectional view taken by line AA′ shown. Figure 6 An example of a sound device according to another embodiment of the present disclosure is shown. Figure 6 Examples are shown by modifying Figure 2 The embodiment is implemented based on the structure of the vibrating member shown. Therefore, in the following description, repeated descriptions of other components besides the vibrating member and related elements can be omitted.

[0222] Reference Figure 1 and Figure 6 According to another embodiment of the present disclosure, the sound device 10 may include a vibrating member 110 and a vibrating device 130.

[0223] The vibrating member 110 may include a non-planar structure. For example, the vibrating member 110 may include a curved structure or a flexural portion (or an uneven portion). For example, the vibrating member 110 may include a flexural portion comprising one or more convex curved portions 110a3 and one or more concave curved portions 110a4. For example, the vibrating member 110 may have a completely uniform thickness T7 (e.g., the vibrating member 110 may extend the entire length or the entire vibrating member 110 may have the same thickness T7), but embodiments of this disclosure are not limited thereto.

[0224] The convex curved surface portion 110a3 can be a region within the vibrating member 110 that is bent into a convex curved surface shape. The concave curved surface portion 110a4 can be a region within the vibrating member 110 that is bent into a concave curved surface shape.

[0225] The convex surface portion 110a3 and the concave surface portion 110a4 may include the same curvature (or radius of curvature), but embodiments of this disclosure are not limited thereto. For example, the curvature of the convex surface portion 110a3 may be greater than or less than the curvature of the concave surface portion 110a4.

[0226] The boundary portion (or folded portion) between the convex curved surface portion 110a3 and the concave curved surface portion 110a4 may be provided or aligned with the center line ML of the vibrating member 110 parallel to the first direction X, but the embodiments of this disclosure are not limited thereto.

[0227] According to another embodiment of this disclosure, the vibration member 110 may have multiple inherent vibration frequencies based on a curved surface structure including a convex curved surface portion 110a3 and a concave curved surface portion 110a4. The vibration member 110 may have multiple inherent vibration frequencies that are different for each region (or area). For example, the vibration member 110 may have multiple inherent vibration frequencies that are different based on the curvature of each of the convex curved surface portion 110a3 and the concave curved surface portion 110a4.

[0228] According to another embodiment of the present disclosure, the vibration device 130 may include a plurality of vibration devices 131 for vibrating each of the convex curved portion 110a3 and the concave curved portion 110a4 of the vibration member 110.

[0229] Each of the plurality of vibration devices 131 may be connected or coupled to the vibration member 110 corresponding to each of the convex curved surface portion 110a3 and the concave curved surface portion 110a4. For example, each of the plurality of vibration devices 131 may be connected or coupled to the second surface 110b of the vibration member 110 corresponding to each of the convex curved surface portion 110a3 and the concave curved surface portion 110a4.

[0230] Each of the plurality of vibration devices 131 may be bent based on the curvature of each of the corresponding convex curved surface portion 110a3 and the corresponding concave curved surface portion 110a4 and may be connected or coupled to the second surface 110b of the vibration member 110. For example, each of the plurality of vibration devices 131 may be bent into a shape (equiangular shape or conformal shape) based on the shape of the second surface 110b of the vibration member 110.

[0231] According to embodiments of this disclosure, when the vibration device 131 is connected to the concave second surface 110b of the vibration member 110 corresponding to the convex curved portion 110a3, the localized vibration regions appearing in the vibration member 110 can be changed in the curvature direction (or the concave second surface). Therefore, sound quality degradation caused by localized vibration can be prevented or minimized. Furthermore, when the vibration device 131 is connected to the convex second surface 110b of the vibration member 110 corresponding to the concave curved portion 110a4, the bending (or curved surface) direction of the vibration device 131 can be concentrated in one direction due to the bending stress applied to the vibration device 130 based on the curvature of the vibration member 110. Therefore, the sound pressure level can be increased compared to a vibration member with a planar structure.

[0232] Each of the plurality of vibration devices 131 can cause the vibrating member 110 to vibrate at each of the corresponding convex curved surface portion 110a3 and the corresponding concave curved surface portion 110a4, so that sound can be generated or output based on the vibration of the vibrating member 110.

[0233] Therefore, the sound device 10 according to another embodiment of the present disclosure may include a plurality of vibration devices 131 configured to correspond respectively to the convex curved surface portion 110a3 and the concave curved surface portion 110a4 of the vibration member 110. Thus, the adverse effects caused by the zoned vibration of the vibration member 110 can be reduced, and the sound characteristics and / or sound pressure level characteristics can be enhanced based on the increase in the sound pressure level in the convex curved surface portion 110a3 of the vibration member 110.

[0234] Figures 7A to 7C This is a plan view illustrating a sound device according to another embodiment of the present disclosure. Figures 7A to 7C Examples are shown by modifying Figures 1 to 6 The embodiment shown is implemented based on the shape of the vibrating component. In the description... Figures 7A to 7C In the following sections, repeated descriptions of components other than the shape of the vibrating member and related elements may be omitted or will be briefly given. Figure 2 and Figures 4 to 6 One of the examples is shown in the middle. Figure 7A To the line AA′ shown in 7C.

[0235] Reference Figures 7A to 7CAccording to another embodiment of the present disclosure, the sound device 10 may have a triangular, pentagonal, or tetragonal shape, but the embodiments of the present disclosure are not limited thereto. For example, the sound device 10 according to another embodiment of the present disclosure may include a circular shape, an elliptical shape, or a polygonal shape with three or more vertices AP. For example, in the sound device 10 according to another embodiment of the present disclosure, each of the vibrating member 110 and the housing 150 may include the same circular shape, elliptical shape, or polygonal shape with three or more vertices AP.

[0236] Reference Figure 7A In another embodiment of the sound device 10 according to the present disclosure, the vibrating member 110 may include a triangular shape.

[0237] Vibration component 110 may include and Figure 2 as well as Figures 4 to 6 The cross-sectional structure of the vibrating member shown in one of the embodiments is the same as that shown. However, the embodiments of this disclosure are not limited to this, and the vibrating member 110 may have a plate structure of a certain thickness, and may have, for example, a triangular plate structure.

[0238] The vibrating member 110 may include a first surface, a second surface, three vertices (or corners) AP and three side surfaces (or sidewalls).

[0239] The vibrating member 110 may include three vertices AP for absorbing or capturing reflected waves generated by reflection through the connecting member 140. For example, a forward wave incident on the connecting member 140 located at the vertices AP of the vibrating member 110 may be scattered (or dispersed) and reflected by the vertices AP without being reflected in the incident direction, thus preventing or minimizing the overlap and interference between the reflected wave and the forward wave, thereby preventing or minimizing the occurrence of standing waves.

[0240] The vibration device 130 can be connected or coupled to a non-central portion of the vibration member 110 other than the central portion CP. Therefore, reflected waves appearing in the vibration member 110 vibrating based on the vibration of the vibration device 130 can be captured at the apex AP of the vibration member 110.

[0241] Therefore, the apex AP of the vibrating member 110 can capture the reflected wave that appears when the vibrating member 110 vibrates (or is vibrating), thus preventing or minimizing the reduction in sound pressure level characteristics of the standing wave based on the interference of the reflected wave and the advancing wave.

[0242] Figure 7AThe sound device 10 shown can output sound by the vibration of a vibrating member 110, which includes a vertices AP for capturing reflected waves. Therefore, the sound characteristics and / or sound pressure level characteristics generated based on the vibration of the vibrating member 110 can be enhanced.

[0243] Reference Figure 7B In another embodiment of the sound device 10 according to the present disclosure, the vibrating member 110 may include a pentagonal shape.

[0244] Vibration component 110 may include and Figure 2 and Figures 4 to 6 The cross-sectional structure of the vibrating member shown in one of the embodiments is the same as that shown. However, the embodiments of this disclosure are not limited thereto. The vibrating member 110 may have a plate structure with a certain thickness, and for example, it may have a pentagonal plate structure.

[0245] The vibrating member 110 may include a first surface, a second surface, five vertices (or corners) AP and five side surfaces (or sidewalls).

[0246] The vibrating member 110 may include five vertices AP for absorbing or capturing reflected waves generated by reflection through the connecting member 140.

[0247] The vibration device 130 can be connected or coupled to a non-central portion of the vibration member 110 other than the central portion CP. Therefore, reflected waves appearing in the vibration member 110 vibrating based on the vibration of the vibration device 130 can be captured at the apex AP of the vibration member 110.

[0248] therefore, Figure 7B The sound device 10 shown can output sound by the vibration of a vibrating member 110, which includes a vertices AP for capturing reflected waves. Therefore, the sound characteristics and / or sound pressure level characteristics generated based on the vibration of the vibrating member 110 can be enhanced.

[0249] Reference Figure 7C In another embodiment of the sound device 10 according to the present disclosure, the vibrating member 110 may have a fourteen-sided shape.

[0250] Vibration component 110 may include and Figure 2 and Figures 4 to 6 The cross-sectional structure of the vibrating member shown in one of the embodiments is the same as that shown. However, the embodiments of this disclosure are not limited to this, and the vibrating member 110 may have a plate structure of a certain thickness, and for example, may have a fourteen-sided plate structure.

[0251] The vibrating member 110 may include a first surface, a second surface, fourteen vertices (or corners) AP, and fourteen side surfaces (or sidewalls) 100s disposed between adjacent vertices AP. For example, the vibrating member 110 may include a first surface, a second surface, seven vertices (or corners) AP, seven curved portions BP disposed between the seven vertices AP, and fourteen side surfaces (or sidewalls) 100s disposed between adjacent vertices AP and curved portions BP. For example, the vibrating member 110 may have a heptagonal shape (dashed line) in which each of the seven sides HS protrudes at an acute angle toward the central portion CP.

[0252] The vibrating member 110 may include fourteen vertices AP for absorbing or capturing reflected waves generated by reflection through the connecting member 140.

[0253] The vibration device 130 can be connected or coupled to a non-central portion of the vibration member 110 other than the central portion CP. Therefore, reflected waves appearing in the vibration member 110 vibrating based on the vibration of the vibration device 130 can be captured at the apex AP of the vibration member 110.

[0254] therefore, Figure 7C The sound device 10 shown can output sound by the vibration of a vibrating member 110, which includes a vertices AP for capturing reflected waves. Therefore, the sound characteristics and / or sound pressure level characteristics generated based on the vibration of the vibrating member 110 can be enhanced.

[0255] Furthermore, in another embodiment of the sound device 10 according to this disclosure, the vibrating member 110 may have a circular or elliptical shape. Even in this case, the advancing wave incident on the connecting member 140 disposed on the curved side surface of the vibrating member 110 can be scattered (or dispersed) and reflected by the vertex AP without being reflected in the incident direction, thus preventing or minimizing the overlap and interference between the reflected wave and the advancing wave, thereby preventing or minimizing the occurrence of standing waves. Therefore, in another embodiment of the sound device 10 according to this disclosure, the vibrating member 110 may have a circular shape, an elliptical shape, and a polygonal shape including three or more vertices.

[0256] Figure 8 It is along Figure 1 Another cross-sectional view taken by line AA′ is shown, and Figure 9 Examples Figure 8 The vibrating component and multiple vibrating devices are shown.

[0257] Reference Figure 1 , Figure 8 and Figure 9According to another embodiment of the present disclosure, the sound device 10 may include a vibrating member 110 and a vibrating device 130.

[0258] Vibrating member 110 can be configured to be in harmony with Figure 2 , Figures 4 to 6 and Figures 7A to 7C The vibrating member shown in one of the embodiments is substantially the same. However, the embodiments of this disclosure are not limited thereto, and the vibrating member 110 may have a plate structure in which each of the first surface 110a and the second surface 110b has a planar structure.

[0259] Vibration device 130 may include a plurality of vibration devices 131. For example, vibration device 130 may include a first to an nth vibration device 131 connected to a second surface (or rear surface) of vibration member 110. For example, vibration device 130 may include a second surface 110b connected to or laid flat on vibration member 110 with a certain interval along a first direction X.

[0260] Each of the first to nth vibration devices 131 may have a square shape with the same horizontal length L1 and vertical length L2, but the embodiments of this disclosure are not limited thereto. For example, each of the first to nth vibration devices 131 may have a rectangular shape with a horizontal length L1 that is relatively longer than the vertical length L2.

[0261] Due to standing waves and constructive and / or destructive interference caused by reflected waves generated by the connecting member 140, the sound generated in the vibrating member 110, which vibrates based on the vibration of each of the first to nth vibrating devices 131, may have reduced characteristics in terms of reproducing pitch frequency bands and sound pressure level. To prevent or minimize the reduction in sound reproduction pitch frequency bands and sound pressure level characteristics caused by reflected waves, the first interval D1 between the first to nth vibrating devices 131 may be 3 mm to 5 mm relative to the first direction X, but embodiments of this disclosure are not limited thereto.

[0262] According to embodiments of the present disclosure, when the first vibration device to the nth vibration device 131 are arranged with a first interval D1 of less than 3 mm or without a first interval D1, the reliability of each of the first vibration device to the nth vibration device 131 may be reduced due to damage or cracking caused by physical contact between the vibration devices 131 when each of the first vibration device to the nth vibration device 131 vibrates (or is vibrating).

[0263] According to embodiments of this disclosure, when the first to nth vibration devices 131 are arranged with a first interval D1 greater than 5 mm, the sound characteristics and / or sound pressure level characteristics of the vibrations of each of the first to nth vibration devices 131 are reduced due to the adverse effects of reflected waves. For example, when the first to nth vibration devices 131 are arranged with a first interval D1 greater than 5 mm, the sound characteristics and / or sound pressure level characteristics in the low-pitched audio frequency band (e.g., below 500 Hz) may be reduced.

[0264] According to embodiments of this disclosure, when the first to the nth vibration device 131 are arranged with a first interval D1 of 3 mm to 5 mm, the occurrence of standing waves caused by reflected waves generated based on the vibration of each connecting member 140, as well as constructive interference and / or destructive interference, can be reduced or minimized. Therefore, the generation pitch frequency band of the sound can be increased and the sound pressure level characteristics of the low-pitched frequency band (e.g., below 500 Hz) can be increased.

[0265] Regarding the first direction X, the second interval D2 may be less than the horizontal length L1 of a vibrating device 131 and may be greater than the first interval D1. In one or more examples, the second interval D2 may be the interval (or gap or distance) between the end (or edge) of the vibrating member 110 and the vibrating device 131 closest to that end (or edge). In one or more examples, the second interval D2 may be the distance between the second edge portion E2 of the vibrating member 110 (e.g., the left edge) and the vibrating device 131 positioned closest to the second edge portion E2 (e.g., the left edge). Figure 9 The second interval D2 may be the gap (or distance) between the leftmost vibrating device 131 and the first edge portion E1 (e.g., the right edge) of the vibrating member 110 and the vibrating device 131 positioned closest to the first edge portion (e.g., the leftmost vibrating device 131). In one or more examples, the second interval D2 may be the gap (or distance) between the leftmost vibrating device 131 and the leftmost vibrating device 131 positioned closest to the leftmost vibrating device 131. Figure 9 The interval (or gap or distance) between the rightmost vibrating devices 131.

[0266] Furthermore, regarding the second direction Y, the third interval D3 between each of the first to nth vibrating devices 131 and both ends of the vibrating member 110 can be less than the vertical length L2 of one vibrating device 131 and greater than the first interval D1. In one or more examples, the third interval D3 can be the interval (or gap or distance) between the third edge portion of the vibrating member 110 and the first to nth vibrating devices 131. The third edge portion can be perpendicular to the first and second edge portions E1 and E2. The third edge portion can be located on the first side of the vibrating member 110 along the first direction X. In one or more examples, the third interval D3 can be the interval (or gap or distance) between the fourth edge portion of the vibrating member 110 and the vibrating member 110 and the first to nth vibrating devices 131. The fourth edge portion can be perpendicular to the first and second edge portions E1 and E2. The fourth edge portion can be located on the second side of the vibrating member 110 (opposite to the first side) along the first direction X.

[0267] Regarding the second interval D2 and the third interval D3, for example, when the second interval D2 is relatively larger than the horizontal length L1 of a vibrating device 131 and the third interval D3 is larger than the vertical length L2 of a vibrating device 131, the vibration regions of each of the first and nth vibrating devices 131 can be relatively extended, thus reducing the uniformity of sound characteristics and / or sound pressure level characteristics. Therefore, in order to achieve uniform sound characteristics and / or uniform sound pressure level characteristics based on the vibrations of each of the first to nth vibrating devices 131, the second interval D2 can be smaller than the horizontal length L1 of a vibrating device 131 and can be larger than the first interval D1, and the third interval D3 can be smaller than the vertical length L2 of a vibrating device 131 and can be larger than the first interval D1.

[0268] Each of the first to nth vibration devices 131 can vibrate the vibrating member 110 based on a vibration drive signal provided from the sound processing circuit, thus outputting sound generated based on the vibration of the vibrating member 110. For example, each of the first to nth vibration devices 131 can vibrate the vibrating member 110 based on a vibration drive signal to output sound with the same pitch audio band, but the embodiments of this disclosure are not limited thereto. For example, one or more of the first to nth vibration devices 131 can vibrate the vibrating member 110 based on a vibration drive signal to output sound with different pitch audio bands.

[0269] As described above, the sound device 10 according to another embodiment of the present disclosure can cause the vibrating member 110 to vibrate based on the vibration of each of the first to nth vibrating devices 131 connected to the rear surface of the vibrating member 110 with an optimized interval D1 based on the effect of reflected waves, thereby outputting sound, thereby enhancing the sound pressure level characteristics of the sound and reproducing the tone sound frequency band.

[0270] Figure 10A and Figure 10B It is along Figure 1 Other cross-sectional views of line AA′ shown are illustrated, and the addition of spatially separated portions is also shown. Figure 8 The embodiment of the sound device is shown. In the description... Figure 10A and 10B In the figures, other elements besides the spatially separated parts and related elements may be referred to by similar reference numerals, and their repeated descriptions may be omitted or briefly given.

[0271] Reference Figure 1 and Figure 10A According to another embodiment of the present disclosure, the sound device 10 may further include a spatial separation portion 160.

[0272] The spatial separation portion 160 may be constructed between one or more of the first to nth vibration devices 131. For example, the spatial separation portion 160 may be constructed between two adjacent vibration devices 131 among the first to nth vibration devices 131, but the embodiments of this disclosure are not limited thereto, and the spatial separation portion 160 may be constructed between two or more adjacent vibration devices 131.

[0273] According to embodiments of the present disclosure, the space separation portion 160 can provide an enclosed space in the vicinity (or around) of one or more of the first to nth vibrating devices 131, thus defining a vibration region for one or more of the first to nth vibrating devices 131. For example, the space separation portion 160 can provide an air gap or space in which sound is generated when each of the plurality of vibrating devices 131 vibrates (is vibrating). For example, the space separation portion 160 can separate sound or sound channels and can minimize or prevent or reduce the degradation of sound characteristics caused by sound interference. For example, the space separation portion 160 can be referred to as a separator, partition member, sound separation member, space separation member, or baffle, etc., but embodiments of the present disclosure are not limited thereto.

[0274] Reference Figure 10AAccording to embodiments of the present disclosure, the spatial separation portion 160 can be connected between the second surface 110b of the vibrating member 110 and the bottom plate portion 151 of the housing 150. For example, one side (or top surface) of the spatial separation portion 160 can be connected or coupled to the second surface 110b of the vibrating member 110. The other side (or bottom surface) of the spatial separation portion 160 can be connected or coupled to the bottom plate portion 151 of the housing 150.

[0275] The space separation portion 160 may include an elastic material for vibration absorption (or shock absorption). The space separation portion 160 according to embodiments of this disclosure may be constructed of polyurethane or polyolefin material, but embodiments of this disclosure are not limited thereto, and may include one or more of adhesives, double-sided tape, double-sided foam tape, and double-sided cushioning tape, but embodiments of this disclosure are not limited thereto. For example, the space separation portion 160 may be constructed of the same material as the connecting member 140.

[0276] Reference Figure 10B According to another embodiment of the present disclosure, the space separation portion 160 may include a partition wall 161 and a partition member 162.

[0277] A partition wall (or separation wall) 161 may protrude from the base plate portion 151 of the housing 150 into the area between the plurality of vibrating devices 131. For example, the partition wall 161 may protrude from the base plate portion 151 of the housing 150 between two adjacent vibrating devices 131 into the area between the two adjacent vibrating devices. For example, the partition wall 161 may be disposed or aligned with the connecting frame portion 153 of the housing 150 in the same plane. For example, the distance between the top surfaces of the base plate portion 151 and the partition wall 161 may be the same as the distance between the base plate portion 151 and the connecting frame portion 153 (e.g., the same as the distance between the top surfaces of the base plate portion 151 and the connecting frame portion 153).

[0278] The partition member 162 can be disposed between the partition wall 161 and the vibrating member 110. For example, the upper side (or top surface) of the partition member 162 can be connected to or coupled to the second surface 110b of the vibrating member. The lower side (or bottom surface) of the partition member 162 can be connected to or coupled to the upper side (or top surface) of the partition wall 161.

[0279] The separator 162 may include an elastic material for vibration absorption (or shock absorption). The separator 162 according to embodiments of this disclosure may be constructed of polyurethane or polyolefin material, but embodiments of this disclosure are not limited thereto, and may include one or more of adhesives, double-sided tape, double-sided foam tape, and double-sided cushioning tape, but embodiments of this disclosure are not limited thereto. For example, the separator 162 may be constructed of the same material as the connecting member 140.

[0280] As described above, the sound device 10 according to another embodiment of the present disclosure may further include a spatial separation portion 160, thereby separating the sound channels or sounds generated based on the vibrations of each of the first to nth vibration devices 131 to output 2-channel stereo, thereby enhancing the sound pressure level characteristics of the sound and reproducing the tonal sound band.

[0281] Figure 11 This is a plan view illustrating a sound device according to another embodiment of the present disclosure. Figure 12 It is along Figure 11 The cross-sectional view of line BB′ shown. Figure 13 This is an example Figure 12 The diagram shows a three-dimensional view of the shell.

[0282] Reference Figures 11 to 13 According to another embodiment of the present disclosure, the sound device 20 may include a vibrating member 110, a vibrating device 130, and a housing 150.

[0283] Vibrating component 110 can be configured to be similar to Figure 2 and Figures 4 to 6 The vibrating member shown in one of the embodiments is substantially the same. However, the embodiments of this disclosure are not limited thereto, and the vibrating member 110 may have a plate structure in which each of the first surface 110a and the second surface 110b has a planar structure.

[0284] The vibrating member 110 may include a first region A1 to an nth region An (where n is a natural number greater than or equal to 3). For example, the vibrating member 110 may include a first region to a third region A1, A2 and A3. For example, the vibrating member 110 may include a first region to a third region A1, A2 and A3 arranged along a first direction X.

[0285] The vibration device 130 may include a plurality of vibration devices 130A, 130B, and 130C configured to vibrate each of a plurality of regions A1, A2, and A3 of the vibration member 110. For example, the vibration device 130 may include one or more first to nth vibration devices (such as 130A, 130B, and 130C) configured to vibrate each of the first to nth regions (such as A1, A2, and A3). Each of the first to nth regions (such as A1, A2, and A3) of the vibration member 110 may vibrate based on the vibration of one or more corresponding vibration devices (such as 130A, 130B, and 130C) to output sound. According to embodiments of the present disclosure, the pitch frequency band of the sound output from one of the regions (such as A1, A2, and A3) of the vibrating member 110 may be different from the pitch frequency band of the sound output from the other regions (such as A1, A2, and A3).

[0286] According to embodiments of the present disclosure, the vibration device 130 may include one or more first vibration devices to third vibration devices 130A, 130B and 130C configured to vibrate the first region to the third region A1, A2 and A3 respectively.

[0287] One or more first vibrating devices 130A may be arranged along a first direction X to vibrate a first region A1 of the vibrating member 110. One or more second vibrating devices 130B may be arranged along the first direction X to vibrate a second region A2 of the vibrating member 110. One or more third vibrating devices 130C may be arranged along the first direction X to vibrate a third region A3 of the vibrating member 110. Each of the first to third regions A1, A2 and A3 of the vibrating member 110 may vibrate based on the vibration of one or more corresponding vibrating devices (such as 130A, 130B and 130C) to output sound. According to embodiments of the present disclosure, the pitch frequency band of the sound output from one of the first to third regions A1, A2 and A3 of the vibrating member 110 may be different from the pitch frequency band of the sound output from the other regions A1, A2 and A3.

[0288] A housing 150 may be disposed on the rear surface of the vibrating member 110 to cover the second surface 110b of the vibrating member 110 and one or more vibrating devices 131. The housing 150 may include a receiving space for accommodating the vibrating devices 130 and may be box-shaped with one side open. The housing 150 may be connected or coupled to the peripheral portion of the second surface 110b of the vibrating member 110 via a connecting member 140. Therefore, the receiving space of the housing 150 may be covered by the vibrating member 110. The connecting member 140 may be connected to the aforementioned reference... Figures 1 to 3 The connecting members 140 described are substantially the same; therefore, similar reference numerals can refer to similar elements and their repeated descriptions can be omitted.

[0289] The housing 150 according to an embodiment of the present disclosure may include a base plate portion 151 and a side portion 152. The housing 150 may also include a connecting frame portion 153 and a patterned portion 150p. The housing 150 having the above-described structure is compared with a reference... Figures 1 to 3 The housing 150 described is substantially the same; therefore, similar reference numerals can refer to similar elements and their repeated descriptions can be omitted.

[0290] The side portion 152 of the housing 150 according to an embodiment of the present disclosure may include: a first side portion 152a connected to a first peripheral portion of a base plate portion 151 parallel to a first direction X; a second side portion 152b connected to a second peripheral portion of a base plate portion 151 parallel to the first peripheral portion of the base plate portion 151; a third side portion 152c connected to a third peripheral portion of a base plate portion 151 parallel to a second direction Y; and a fourth side portion 152d connected to a fourth peripheral portion of a base plate portion 151 parallel to the third peripheral portion of the base plate portion 151. Each of the first side portions 152a to the fourth side portions 152d may be configured to be inclined at an angle between the base plate portion 151 and the connecting frame portion 153.

[0291] The housing 150 according to an embodiment of the present disclosure may further include a space separation portion 160.

[0292] The spatial separation portion 160 can divide the receiving space of the housing 150 into multiple spaces CS1, CS2, and CS3 corresponding to each of the multiple regions A1, A2, and A3 of the vibrating member 110. The spatial separation portion 160 can divide the receiving space of the housing 150 into first spaces to nth spaces (such as CS1, CS2, and CS3) corresponding to each of the first to nth regions (such as A1, A2, and A3) of the vibrating member 110. The spatial separation portion 160 can divide the receiving space of the housing 150 into first spaces to third spaces CS1, CS2, and CS3 corresponding to each of the first to third regions A1, A2, and A3 of the vibrating member 110.

[0293] According to embodiments of the present disclosure, the spatial separation portion 160 may include a first partition wall 161a and a second partition wall 161b.

[0294] A first partition wall (or first separation wall) 161a may be disposed between a first space CS1 and a second space CS2 corresponding to each of the first region A1 and the second region A2. The first partition wall 161a may connect between a first side portion 152a and a second side portion 152b, and may spatially separate the first space CS1 and the second space CS2. For example, the first partition wall 161a may protrude from the bottom plate portion 151 of the housing 150 into the region between the first region A1 and the second region A2 of the vibrating member 110, and may connect between the first side portion 152a and the second side portion 152b, thus spatially separating the first space CS1 and the second space CS2.

[0295] A second partition wall (or a first partition wall) 161b may be disposed between the second space CS2 and the third space CS3 corresponding to each of the second region A2 and the third region A3. The second partition wall 161b may connect between the first side portion 152a and the second side portion 152b, and may spatially separate the second space CS2 and the third space CS3. For example, the second partition wall 161b may protrude from the bottom plate portion 151 of the housing 150 into the region between the second region A2 and the third region A3 of the vibrating member 110, and may connect between the first side portion 152a and the second side portion 152b, thus spatially separating the second space CS2 and the third space CS3.

[0296] According to embodiments of the present disclosure, the space separation portion 160 may include a first separation member 162a and a second separation member 162b.

[0297] The first partition member 162a may be disposed between the first partition wall 161a and the vibrating member 110. For example, the upper side (or top surface) of the first partition member 162a may be connected to or coupled to the second surface 110b of the vibrating member 110. The lower side (or bottom surface) of the first partition member 162a may be connected to or coupled to the upper side (or top surface) of the first partition wall 161a.

[0298] The second partition member 162b may be disposed between the second partition wall 161b and the vibrating member 110. For example, the upper side (or top surface) of the second partition member 162b may be connected to or coupled to the second surface 110b of the vibrating member 110. The lower side (or bottom surface) of the second partition member 162b may be connected to or coupled to the upper side (or top surface) of the second partition wall 161b.

[0299] Each of the first partition member 162a and the second partition wall 161b may include an elastic material for vibration absorption (or shock absorption). Each of the first partition member 162a and the second partition wall 161b according to embodiments of the present disclosure may be constructed of polyurethane or polyolefin material, but embodiments of the present disclosure are not limited thereto, and 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. For example, each of the first partition member 162a and the second partition wall 161b may be constructed of the same material as the connecting member 140.

[0300] The housing 150 according to an embodiment of the present disclosure may further include a first sound separation portion 171 and a second sound separation portion 173.

[0301] The first sound separation section 171 can be disposed in a first space CS1 between one or more first vibration devices 130A and a first partition wall 161a. The second sound separation section 173 can be disposed in a third space CS3 between one or more third vibration devices 130C and a second partition wall 161b.

[0302] Each of the first sound separation portion 171 and the second sound separation portion 173 may include one or more ribs 171a and 171b and one or more sound separation members 173a and 173b.

[0303] One or more ribs 171a and 171b may protrude from the inner surface of one or more of the first side portion 152a and the second side portion 152b along the second direction Y and the third direction Z.

[0304] According to embodiments of the present disclosure, one or more ribs 171a and 171b may protrude from the inner surface of either the first side portion 152a or the second side portion 152b. In this case, the protruding length of each of the one or more ribs 171a and 171b may be less than the distance between the first side portion 152a and the second side portion 152b. According to embodiments of the present disclosure, one or more ribs 171a and 171b may protrude from the inner surface of each of the first side portion 152a and the second side portion 152b. In this case, the protruding length of each of the one or more ribs 171a and 171b may be less than half the distance between the first side portion 152a and the second side portion 152b.

[0305] For example, when one or more ribs 171a and 171b protrude to connect between the first side portion 152a and the second side portion 152b, the sound separation effect between the first space and the third spaces CS1, CS2, and CS3 can maximally block vibrations transmitted from each of the first space CS1 and the third space CS3 to the second space CS2. Therefore, the stereo characteristics can be reduced due to the decrease in the sound characteristics and sound pressure level of the high-pitched audio band. Thus, in order to enhance the stereo characteristics by minimizing the reduction in the sound characteristics and sound pressure level of the high-pitched audio band, the protruding length of each of the one or more ribs 171a and 171b can be less than half the distance between the first side portion 152a and the second side portion 152b.

[0306] One or more sound separation members 173a and 173b may be disposed between one or more ribs 171a and 171b and the second surface 110b of the vibrating member 110. For example, the upper side (or top surface) of each of one or more sound separation members 173a and 173b may be connected or coupled to the second surface 110b of the vibrating member 110. The lower side (or bottom surface) of one or more sound separation members 173a and 173b may be connected or coupled to the upper side (or top surface) of one or more ribs 171a and 171b. One or more sound separation members 173a and 173b may include an elastic material for absorbing vibration (or shock absorption), or may include the same material as one of the first separating member 162a, the second separating member 162b, and the connecting member 140.

[0307] According to embodiments of the present disclosure, each of the first sound separation portion 171 and the second sound separation portion 173 may include a plurality of ribs 171a and 171b arranged at predetermined intervals along a first direction X. One of the plurality of ribs 171a and 171b may protrude from the inner surface of one or more of the first side portion 152a and the second side portion 152b to have different lengths along a second direction Y. The protruding length of each of the plurality of ribs 171a and 171b may be less than half the distance between the first side portion 152a and the second side portion 152b.

[0308] According to embodiments of this disclosure, the protruding length of each of the plurality of ribs 171a and 171b may vary along a first direction X toward the spatial separation portion 160 or the second space CS2. For example, the protruding length of each of the plurality of ribs 171a and 171b may increase along the first direction X toward the spatial separation portion 160 or the second space CS2. In this respect, in one or more examples, the length of rib 171b (which is closer to the spatial separation portion 160 or the second space CS2 along the first direction X) may be longer than the length of rib 171a. Furthermore, in this respect, in one or more examples, the protruding length of rib 171b (which is closer to the spatial separation portion 160 or the second space CS2 along the first direction X) may be longer than the protruding length of rib 171a.

[0309] According to embodiments of the present disclosure, each of the first sound separation portion 171 and the second sound separation portion 173 may include a plurality of sound separation components 173a and 173b.

[0310] Each of the plurality of sound separation members 173a and 173b may be disposed between each of the plurality of ribs 171a and 171b and the second surface 110b of the vibrating member 110. For example, the upper side (or top surface) of each of the plurality of sound separation members 173a and 173b may be connected or coupled to the second surface 110b of the vibrating member 110. The lower side (or bottom surface) of each of the plurality of sound separation members 173a and 173b may be connected or coupled to the upper side (or top surface) of one or more ribs 171a and 171b. Each of the plurality of sound separation members 173a and 173b may include an elastic material for absorbing vibration (or shock absorption), or may include the same material as one of the first separating member 162a, the second separating member 162b, and the connecting member 140.

[0311] The housing 150 according to an embodiment of the present disclosure may further include a first sound limiting portion 175 and a second sound limiting portion 176.

[0312] The first sound limiting portion 175 may be disposed near one or more first vibrating devices 130A. The first sound limiting portion 175 may capture reflected waves generated based on the vibration of one or more first vibrating devices 130A, thereby preventing or minimizing the reduction in sound pressure level characteristics caused by standing waves due to interference between reflected waves and advancing waves.

[0313] The first sound limiting portion 175 according to embodiments of the present disclosure may include one or more first protrusions 175a and one or more first sound limiting members 175b.

[0314] One or more first protrusions 175a may protrude toward the first space CS1 from the inner surface of one or more of the first side portions 152a, 152b, and 152c surrounding the first space CS1 and the first partition wall 161a. For example, one or more first protrusions 175a may face the inner surface of one or more of the first side portions 152a and the second side portions 152b between one or more first vibration devices 130A and the first partition wall 161a. For example, one or more first protrusions 175a may protrude toward the central portion of one or more first vibration devices 130A from the inner surface of one or more of the third side portions 152c and the first partition wall 161a.

[0315] According to embodiments of this disclosure, the first sound limiting portion 175 may include four or more first protrusions 175a projecting toward the first space CS1 from the inner surfaces of each of the first side portions to the third side portions 152a, 152b, and 152c surrounding the first space CS1 and the first partition wall 161a. For example, one or more first protrusions 175a projecting along a second direction Y from the inner surfaces of each of the first side portions 152a and the second side portions 152b may be configured between the first vibration device 130A and the first sound separation portion 171. One or more first protrusions 175a projecting along a first direction X from the inner surface of the third side portion 152c may project toward the central portion of the first vibration device 130A. One or more first protrusions 175a projecting from the inner surface of the first partition wall 161a may project toward the central portion of the first vibration device 130A.

[0316] One or more first sound damping members 175b may be disposed between one or more first protrusions 175a and the second surface 110b of the vibrating member 110. For example, the upper side (or top surface) of one or more first sound damping members 175b may be connected or coupled to the second surface 110b of the vibrating member 110. The lower side (or bottom surface) of one or more first sound damping members 175b may be connected or coupled to the upper side (or top surface) of one or more first protrusions 175a. One or more first sound damping members 175b may include an elastic material for vibration absorption (or shock absorption), or may include the same material as one of the first separating member 162a, the second separating member 162b, and the connecting member 140.

[0317] According to embodiments of this disclosure, the first sound limiting member 175b and the first protrusion 175a protruding from the inner surface of each of the first side portions 152a, 152b, and 152c can be configured to capture reflected waves generated by the connecting member 140. The first sound limiting member 175b and the first protrusion 175a protruding from the inner surface of the first partition wall 161a can be configured to capture reflected waves generated by the first partition member 162a.

[0318] The second sound limiting section 176 may be disposed near one or more third vibrating devices 130C. The second sound limiting section 176 may capture reflected waves generated based on the vibration of one or more third vibrating devices 130C, thereby preventing or minimizing the reduction in sound pressure level characteristics caused by standing waves due to interference between reflected waves and advancing waves.

[0319] The second sound limiting portion 176 according to embodiments of the present disclosure may include one or more second protrusions 176a and one or more second sound limiting members 176b.

[0320] One or more second protrusions 176a may protrude toward the third space CS3 from the inner surfaces of one or more of the first side portions 152a, the second side portions 152b, and the fourth side portions 152d surrounding the space CS3, as well as the second partition wall 161b. For example, one or more second protrusions 176a may face the inner surfaces of one or more of the first side portions 152a and the second side portions 152b between one or more of the third vibration devices 130C and the second partition wall 161b. For example, one or more second protrusions 176a may protrude toward the central portion of one or more of the third vibration devices 130C from the inner surfaces of the fourth side portions 152d and the second partition wall 161b.

[0321] According to embodiments of this disclosure, the second sound limiting portion 176 may include four or more second protrusions 176a projecting toward the third space CS3 from the inner surfaces of each of the first side portion 152a, the second side portion 152b, the fourth side portion 152d, and the second partition wall 161b surrounding the third space CS3. For example, one or more second protrusions 176a projecting along a second direction Y from the inner surfaces of each of the first side portion 152a and the second side portion 152b may be configured between the third vibration device 130C and the second sound separation portion 173. One or more second protrusions 176a projecting along a first direction X from the inner surface of the fourth side portion 152d may project toward the center of the third vibration device 130C. One or more second protrusions 176a projecting from the inner surface of the second partition wall 161b may project toward the center of the third vibration device 130C.

[0322] One or more second sound damping members 176b may be disposed between one or more second protrusions 176a and the second surface 110b of the vibrating member 110. For example, the upper side (or top surface) of one or more second sound damping members 176b may be connected or coupled to the second surface 110b of the vibrating member 110. The lower side (or bottom surface) of one or more second sound damping members 165b may be connected or coupled to the upper side (or top surface) of one or more second protrusions 176a. One or more second sound damping members 176b may include an elastic material for absorbing vibration (or shock absorption), or may include the same material as one of the first separating member 162a, the second separating member 162b, and the connecting member 140.

[0323] According to embodiments of this disclosure, a second protrusion 176a and a second sound limiting member 176b protruding from the inner surface of each of the first side portion 152a, the second side portion 152b, and the fourth side portion 152d can be configured to capture reflected waves generated by the connecting member 140. Similarly, a second protrusion 176a and a second sound limiting member 176b protruding from the inner surface of the second partition wall 161b can be configured to capture reflected waves generated by the second partition member 162b.

[0324] According to embodiments of the present disclosure, a space within the housing 150, wherein one or more first protrusions 175a are disposed on the third side portion 152c and one or more second protrusions 176a are disposed on the fourth side portion 152d, can be configured to output frequencies of the high-pitched audio band. According to embodiments of the present disclosure, a space within the housing 150, wherein one or more first protrusions 175a are disposed on the first side portion 152a and the second side portion 152b, one or more second protrusions 176a are disposed on the first side portion 152a and the second side portion 152b, one or more first sound limiting members 175b, and one or more second sound limiting members 176b, can be configured to output low-pitched audio frequencies.

[0325] According to embodiments of this disclosure, a second space CS2 provided with one or more second vibration devices 130B can be configured to output low-to-mid pitch sound frequencies.

[0326] According to another embodiment of the present disclosure, the sound device 20 may further include a sound drive circuit section 180 disposed in the second space CS2 of the housing 150.

[0327] The sound drive circuit section 180 can generate sound data based on an externally provided sound source (or digital sound source) and can generate a vibration drive signal corresponding to the sound data. Therefore, one or more first vibration devices to third vibration devices 130A, 130B and 130C of the vibration device 130 can vibrate individually or simultaneously.

[0328] The sound driving circuit section 180 may include: a sound data generation circuit section that generates sound data based on a sound source (or digital sound source) provided from an external source; and a sound processing circuit that generates a vibration driving signal based on the sound data provided by the sound data generation circuit section and provides the vibration driving signal to one or more first vibration devices 130A, 130B, and 130C of the vibration device 130. Furthermore, the sound driving circuit section 180 according to embodiments of this disclosure may also include a power generation circuit, a wireless communication circuit, and peripheral circuitry (such as a battery) required to drive the sound device.

[0329] Additionally, one or more second vibration devices 130B located in the second space CS2 of the housing 150 can be omitted. Therefore, the spatial separation section 160 can separate the sound output from the first space CS1 and the third space CS3, thereby further enhancing the sound output characteristics. Thus, the sound device 20 can output 2-channel stereo by separating the left and right sounds through the spatial separation section 160.

[0330] As described above, the sound device 20 according to another embodiment of the present disclosure can separate and output sound based on the region-based vibration of the vibrating member 110 corresponding to the plurality of regions A1, A2, and A3 spatially separated by the spatial separation portion 160. Therefore, sound or channels can be separated and output, thereby preventing or minimizing the degradation of sound characteristics caused by sound interference. Furthermore, the sound device 20 according to another embodiment of the present disclosure can prevent or minimize the degradation of sound characteristics and / or sound pressure level characteristics caused by reflected waves based on the capture of reflected waves by the sound limiting portions 175 and 176. In addition, the sound device 20 according to another embodiment of the present disclosure can output 2-channel stereo by separating left and right sounds through the spatial separation portion 160, and can enhance stereo characteristics by separating high-pitched audio bands through the sound separation portions 171 and 173.

[0331] Figure 14 This is a plan view illustrating a sound device 30 according to another embodiment of the present disclosure. Figure 15 It is along Figure 14 The cross-sectional view shown is taken from line CC′. Figure 16 This is a conceptual diagram illustrating a location-based sound output from a sound device 30 according to another embodiment of the present disclosure.

[0332] Reference Figures 14 to 16 According to another embodiment of the present disclosure, the sound device 30 may include a vibrating member 110, a vibrating device 230, and a housing 150.

[0333] The vibrating member 110 can be configured to be in harmony with... Figure 2 and Figures 4 to 6 The vibrating member shown in one of the embodiments is substantially the same. However, the embodiments of this disclosure are not limited thereto, and the vibrating member 110 may have a plate structure in which each of the first surface 110a and the second surface 110b has a planar structure.

[0334] The vibrating member 110 may include multiple regions A1 to A5. For example, the vibrating member 110 may include a first region to an nth region (where n is a natural number of 5 or greater) A1 to A5. For example, the vibrating member 110 may include a first region A1 to a fifth region A5 arranged along a first direction X.

[0335] The vibration device 230 may include one or more vibration devices 231-1 to 231-5 configured to vibrate the first region to the nth region A1 to A5 respectively.

[0336] Each of the first to nth regions A1 to A5 of the vibrating member 110 can vibrate based on the vibration of one or more vibrating devices 231-1 to 231-5 to output sound. According to embodiments of the present disclosure, the pitch frequency band of the sound output from one of the first to nth regions A1 to A5 of the vibrating member 110 can be different from the pitch frequency band of the sound output from the other regions A1 to A5.

[0337] According to embodiments of the present disclosure, the first region A1 of the vibrating member 110 may include a first edge portion E1 of the vibrating member 110, and the nth region A5 of the vibrating member 110 may include a second edge portion E2 of the vibrating member 110. For example, the first region A1 of the vibrating member 110 may include a first peripheral region of the vibrating member 110, and the nth region A5 of the vibrating member 110 may include a second peripheral region of the vibrating member 110.

[0338] According to embodiments of this disclosure, the pitch frequency band of the sound output from each of the first to nth regions A1 to A5 of the vibrating member 110 can be increased in the direction from the central region of the vibrating member 110 to the first region A1 and the nth region A5, but embodiments of this disclosure are not limited thereto. For example, when the vibrating member 110 includes the first region A1 to the fifth region A5, the sound output from each of the first region A1 and the fifth region A5 of the vibrating member 110 can have a pitch frequency band above the audible frequency or a pitch frequency band of a specific frequency signal (or ultrasound), the sound output from the third region A3 at the central region of the vibrating member 110 can have a mid-to-low pitch frequency band, and the sound output from each of the second region A2 and the fourth region A4 of the vibrating member 110 can have a high pitch frequency band. For example, the low-to-mid-range audio frequency band can be from 200 Hz to 1 kHz, the high-to-mid-range audio frequency band can have a frequency of 1 kHz or 3 kHz or higher, and the tone audio frequency band of a specific frequency signal (or ultrasound) can have a frequency of 30 kHz or higher, but the embodiments disclosed herein are not limited thereto. In the following description of the embodiments in this specification, the specific frequency signal may be referred to as ultrasound.

[0339] According to embodiments of this disclosure, in the vibrating member 110, the size (or area) of each of the first region A1 to the nth region A5 in the direction from each of the first region A1 and the nth region A5 to the central region can be relatively large. Therefore, the sound device 30 according to another embodiment of this disclosure can output mid-to-low pitch sound through the central region of the vibrating member 110 having a relatively wide area, and can output high pitch sound through the region between the central region of the vibrating member 110 and the first region A1 and the nth region A5. Therefore, it can better provide the user (or listener) with the three dimensions and sound quality of the sound.

[0340] According to embodiments of the present disclosure, the vibration device 130 may include one or more first vibration devices to nth vibration devices 231-1 to 231-5 configured to vibrate the first region to the nth region A1 to A5 respectively.

[0341] According to embodiments of this disclosure, the size of each of one or more first to nth vibration devices 231-1 to 231-5 may be reduced in the direction from the central region of the vibrating member 110 to the first region and the nth regions A1 and A5, but embodiments of this disclosure are not limited thereto. In this respect, in one or more examples, the size of one or more first vibration devices 231-1 (at the first region A1) may be smaller than the size of one or more second vibration devices 231-2 (at the second region A2), and their size may be smaller than the size of one or more third vibration devices 231-3 (at the third region A3 or the central region of the vibrating member 110). Furthermore, in this respect, in one or more examples, the size of one or more fifth vibration devices 231-5 (at the fifth region A5) may be smaller than the size of one or more fourth vibration devices 231-4 (at the fourth region A4), and their size may be smaller than the size of one or more third vibration devices 231-3 (at the third region A3 or the central region of the vibrating member 110).

[0342] One or more first vibration devices 231-1 can cause the first region A1 of the vibration member 110 to vibrate to generate or output ultrasonic waves UW. One or more nth vibration devices 231-5 can cause the nth region A5 of the vibration member 110 to vibrate to generate or output multiple ultrasonic waves UW and UW1 with different frequencies.

[0343] According to embodiments of this disclosure, any one of the plurality of ultrasonic waves UW and UW1 output from the nth region A5 of the vibrating member 110 may have the same frequency as the ultrasonic wave UW output from the first region A1 of the vibrating member 110. The frequency of another ultrasonic wave UW1 among the plurality of ultrasonic waves UW and UW1 output from the nth region A5 of the vibrating member 110 may be higher than the frequency of the ultrasonic wave UW output from the first region A1 of the vibrating member 110. Therefore, the user (or listener) can hear (or perceive) a sound with a frequency difference corresponding to the difference frequency distortion between the ultrasonic waves UW and UW1 output from the nth region A5 of the vibrating member 110 and the ultrasonic wave UW output from the first region A1 of the vibrating member 110. For example, when a 40 kHz ultrasonic wave UW is output from the first region A1 of the vibrating member 110 and a 42 kHz ultrasonic wave UW1 is output from the nth region A5 of the vibrating member 110, the listener can hear (or perceive) a 2 kHz difference sound corresponding to the difference frequency distortion between the 40 kHz ultrasonic wave UW and the 42 kHz ultrasonic wave UW1. Therefore, the sound device 30 according to the embodiments of the present disclosure can output direction-based sound by outputting ultrasonic waves, thereby enabling a user privacy and security function that allows a person to not hear (or not hear) sound in an inaudible area except in a specific audible area.

[0344] According to embodiments of the present disclosure, one or more first vibration devices 231-1 disposed in the first region A1 of the vibration member 110 can emit or receive ultrasonic waves. One or more nth vibration devices 231-5 disposed in the nth region A5 of the vibration member 110 can emit or receive ultrasonic waves. For example, one or more first vibration devices 231-1 can receive ultrasonic waves and one or more nth vibration devices 231-5 can emit ultrasonic waves, but embodiments of the present disclosure are not limited thereto. Therefore, the sound device 30 according to embodiments of the present disclosure can emit and receive ultrasonic waves through one or more of the first vibration devices 231-1 and one or more of the nth vibration devices 231-5 to sense the position and / or motion information of the user (or listener), and thus can output sound or orientation-based sound optimized for the position and / or motion of the user (or listener).

[0345] A housing 150 may be disposed on the rear surface of the vibrating member 110 to cover the second surface 110b of the vibrating member 110 and the vibrating device 230. The housing 150 may include a receiving space 150s for accommodating the vibrating device 130 and may be box-shaped with one side open. The housing 150 may be connected or coupled to the peripheral portion of the second surface 110b of the vibrating member 110 via a connecting member 140. Therefore, the receiving space 150s of the housing 150 may be covered by the vibrating member 110. The connecting member 140 may be connected to the aforementioned reference... Figures 1 to 3 The connecting members 140 described are substantially the same; therefore, similar reference numerals can refer to similar elements and their repeated descriptions can be omitted.

[0346] The housing 150 according to an embodiment of the present disclosure may include a base plate portion 151 and a side portion 152. The housing 150 may also include a connecting frame portion 153 and a patterned portion 150p. The housing 150 having the above-described structure is compared with a reference... Figures 1 to 3 The housing 150 described is substantially the same; therefore, similar reference numerals can refer to similar elements and their repeated descriptions can be omitted.

[0347] As described above, the sound device 30 according to another embodiment of the present disclosure can output low-to-mid-tone sound in the central region of the vibrating member 110 and high-to-mid-tone sound in the peripheral portion of the vibrating member 110, thus providing the user (or listener) with greater three-dimensionality and sound quality. Furthermore, the sound device 30 according to another embodiment of the present disclosure can output location-based sound via ultrasonic waves, thus enabling user privacy and security features that prevent sound from being heard in inaudible areas other than specific audible zones. Additionally, the sound device 30 according to another embodiment of the present disclosure can transmit and receive ultrasonic waves to output sound or location-based sound optimized for the user's (or listener's) location and / or motion information.

[0348] Figure 17 An example of a vibration device according to an embodiment of the present disclosure is shown. Figure 18 It is along Figure 17 The cross-sectional view of line DD′ shown. Figure 19 Examples Figure 18 The piezoelectric vibration component shown. Figures 17 to 19 Examples Figures 1 to 13 Another embodiment of the vibration device shown in one or more of the examples.

[0349] Reference Figures 17 to 19The vibration device 131 according to the embodiments of the present 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 the present disclosure are not limited thereto.

[0350] The vibration device 131 according to an embodiment of the present disclosure may include a vibration generating portion having a piezoelectric vibration portion 131a, a first electrode portion 131b, and a second electrode portion 131c.

[0351] The piezoelectric vibration portion 131a may include a piezoelectric material (or electroactive material) exhibiting a piezoelectric effect. For example, the piezoelectric material may have the following characteristics: when pressure or twisting (or bending) is applied to the crystal structure by an external force, a potential difference is generated due to dielectric polarization caused by the change in the relative positions of positive (+) ions and negative (-) ions, and vibration is generated by an electric field based on the reverse voltage applied to it. The piezoelectric vibration portion 131a may be referred to as a vibration layer, piezoelectric layer, piezoelectric material layer, electroactive layer, vibration portion, piezoelectric material portion, electroactive portion, piezoelectric structure, piezoelectric composite layer, piezoelectric composite material, or piezoelectric ceramic composite material, etc., but the embodiments of this disclosure are not limited thereto. The piezoelectric vibration portion 131a may be formed of a transparent, translucent, or opaque piezoelectric material (or electroactive material), and may be transparent, translucent, or opaque.

[0352] The piezoelectric vibration portion 131a according to embodiments of the present disclosure may include a plurality of first portions 131a1 and a plurality of second portions 131a2. For example, the plurality of first portions 131a1 and the plurality of second portions 131a2 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 vibration portion 131a, and the second direction Y may be the length direction of the piezoelectric vibration portion 131a, but embodiments of the present disclosure are not limited thereto. For example, the first direction X may be the length direction of the piezoelectric vibration portion 131a, and the second direction Y may be the length direction of the piezoelectric vibration portion 131a.

[0353] Each of the plurality of first portions 131a1 may be configured as an inorganic material portion. The inorganic material portion may include a piezoelectric material, a composite piezoelectric material, or an electroactive material having a piezoelectric effect. For example, the first portion 131a1 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.

[0354] Each of the plurality of first portions 131a1 can be configured to generate a ceramic matrix material with relatively high vibrations, or can be configured to be a piezoelectric ceramic having a perovskite-based 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 131a1 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.

[0355] The first portion 131a1 of the piezoelectric vibration portion 131a according to embodiments of the present disclosure may include a lead zirconate titanate (PZT) based material containing lead (Pb), zirconium (Zr), and titanium (Ti); or may include a nickel zirconate niobate lead zirconate niobate (PZNN) based material containing lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but embodiments of the present disclosure are not limited thereto. Furthermore, the first portion 131a1 of the piezoelectric vibration portion 131a may include at least one or more of calcium titanate (CaTiO3), BaTiO3, and SrTiO3, each of which does not contain lead (Pb), but embodiments of the present disclosure are not limited thereto.

[0356] Each of the plurality of first portions 131a1 according to embodiments of the present disclosure may be disposed between a plurality of second portions 131a2 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 131a2 may have a second width W2 parallel to a first direction X (or a second direction Y) and may have a length parallel to a 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 131a1 and the second portions 131a2 may include linear or strip shapes having the same or different dimensions. Therefore, the piezoelectric vibrating portion 131a may include a 2-2 composite structure with piezoelectric characteristics having a 2-2 vibration mode, and thus may have a resonant frequency below 20 kHz, but embodiments of the present disclosure are not limited thereto. For example, the resonant frequency of the piezoelectric vibrating portion 131a may vary based on at least one or more of the shape, length, and thickness.

[0357] In the piezoelectric vibrating portion 131a, each of the plurality of first portions 131a1 and the plurality of second portions 131a2 can be arranged (or arranged) in parallel on the same plane (or the same layer). Each of the plurality of second portions 131a2 can be configured to fill the gap between two adjacent first portions of the plurality of first portions 131a1 and can be connected or adhered to the adjacent second portion 131a2. Therefore, the piezoelectric vibrating portion 131a can extend to a desired size or length based on the side connection (or connection) of the first portions 131a1 and the second portions 131a2.

[0358] In the piezoelectric vibration section 131a, the width (or size) W2 of each of the plurality of second sections 131a2 can gradually decrease in the direction from the center of the piezoelectric vibration section 131a or the vibration device 131 to the two peripheries (or ends).

[0359] According to embodiments of this disclosure, the second portion 131a2 with the largest width W2 among the plurality of second portions 131a2 may be located at the portion where the highest stress may concentrate when the piezoelectric vibrating portion 131a or the vibrating device 131 vibrates (or is vibrating) in the vertical direction Z (or the thickness direction). The second portion 131a2 with the smallest width W2 among the plurality of second portions 131a2 may be located at the portion where relatively low stress may occur when the piezoelectric vibrating portion 131a or the vibrating device 131 vibrates (or is vibrating) in the vertical direction Z. For example, the second portion 131a2 with the largest width W2 among the plurality of second portions 131a2 may be provided at the central portion of the piezoelectric vibrating portion 131a, and the second portion 131a2 with the smallest width W2 among the plurality of second portions 131a2 may be provided at each of the two peripheries of the piezoelectric vibrating portion 131a. Therefore, when the piezoelectric vibrating part 131a or the vibrating device 131 vibrates (or is vibrating) in the vertical direction Z, the interference of sound waves or the overlap of resonant frequencies occurring in the parts where the highest stress is concentrated can be reduced or minimized. Therefore, the sound pressure level dip phenomenon occurring in the low-pitched audio band can be reduced, thereby improving the flatness of the sound characteristics in the low-pitched audio band.

[0360] In the piezoelectric vibration section 131a, each of the plurality of first portions 131a1 may have a different size (or width). For example, in the direction from the center portion of the piezoelectric vibration section 131a or the vibration device 131 to the two peripheries (or ends), the size (or width) of each of the plurality of first portions 131a1 may gradually decrease or increase. For example, in the piezoelectric vibration section 131a, based on the various inherent vibration frequencies of the vibrations of each of the plurality of first portions 131a1 with different sizes, the sound pressure level characteristics of the sound can be enhanced and the sound reproduction band can be increased.

[0361] Multiple second portions 131a2 can be disposed between multiple first portions 131a1. Therefore, in the piezoelectric vibrating portion 131a or vibrating device 131, the vibrational energy of the links in a unit lattice of each first portion 131a1 can be increased by the corresponding second portion 131a2, thus enhancing the vibrational characteristics and ensuring piezoelectric properties and flexibility. For example, the second portion 131a2 may comprise one or more of epoxy-based polymers, acrylic-based polymers, and silicone-based polymers, but embodiments of this disclosure are not limited thereto.

[0362] According to embodiments of the present disclosure, the plurality of second portions 131a2 can be configured as organic material portions. For example, the organic material portions can be disposed between the inorganic material portions, thereby absorbing impacts applied to the inorganic material portions (or the first portion), releasing stress concentrated on the inorganic material portions, enhancing the overall durability of the piezoelectric vibrating portion 131a or the vibration device 131, and providing flexibility to the piezoelectric vibrating portion 131a or the vibration device 131.

[0363] According to embodiments of this disclosure, the plurality of second portions 131a2 may have a modulus (or Young's modulus) and viscoelastic modulus (or Young's modulus) and viscoelasticity lower than those of each first portion 131a1. Therefore, the second portions 131a2 may improve the reliability of each first portion 131a1, which is susceptible to impact due to its brittle nature. For example, the second portions 131a2 may be constructed of 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.

[0364] The organic material portion constructed at the second portion 131a2 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 131a1. For example, the second portion 131a2 may be referred to as a flexible adhesive portion, elastic portion, bending portion, damping portion, or flexible portion, but embodiments of this disclosure are not limited thereto.

[0365] Multiple first portions 131a1 and second portions 131a2 can be disposed on (or connected to) the same plane, thus, the piezoelectric vibrating portion 131a according to embodiments of the present disclosure can have a single-film type. For example, the piezoelectric vibrating portion 131a can have a structure in which multiple first portions 131a1 are connected to one side. For example, multiple first portions 131a1 can have a structure connected to the entire piezoelectric vibrating portion 131a. For example, the piezoelectric vibrating portion 131a can vibrate in the vertical direction by the first portions 131a1 having vibration characteristics, and can be bent into a curved shape by the flexible second portions 131a2. Furthermore, in the piezoelectric vibrating portion 131a according to embodiments of the present disclosure, the dimensions of the first portions 131a1 and the second portions 131a2 can be adjusted based on the piezoelectric characteristics and flexibility required for the piezoelectric vibrating portion 131a or the vibrating device 131. As an embodiment of the present disclosure, when the piezoelectric vibrating portion 131a requires piezoelectric characteristics rather than flexibility, the dimensions of the first portions 131a1 can be adjusted to be larger than the dimensions of the second portions 131a2. In another embodiment of this disclosure, when the piezoelectric vibrating portion 131a requires flexibility rather than piezoelectric properties, the size of the second portion 131a2 can be adjusted to be larger than the size of the first portion 131a1. Therefore, the size of the piezoelectric vibrating portion 131a can be adjusted based on its required characteristics, thus making the piezoelectric vibrating portion 131a easy to design.

[0366] The first electrode portion 131b may be disposed on the first surface (or upper surface) of the piezoelectric vibration portion 131a. The first electrode portion 131b may be commonly disposed on or connected to the first surface of each of the plurality of first portions 131a1 and the first surface of each of the plurality of second portions 131a2, and may be electrically connected to the first surface of each of the plurality of first portions 131a1. For example, the first electrode portion 131b may be in the shape of a single electrode (or a common electrode) disposed across the entire first surface of the piezoelectric vibration portion 131a. For example, the first electrode portion 131b may have a shape substantially the same as that of the piezoelectric vibration portion 131a, but embodiments of this disclosure are not limited thereto.

[0367] The first electrode portion 131b according to embodiments of the present 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 the present disclosure are not limited thereto. The opaque conductive material may include aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), Mg, or alloys thereof, but embodiments of the present disclosure are not limited thereto.

[0368] The second electrode portion 131c may be disposed on a second surface (or rear surface) of the piezoelectric vibrating portion 131a that is different from (or opposite to) the first surface. The second electrode portion 131c may be commonly disposed on or connected to the second surface of each of the plurality of first portions 131a1 and the second surface of each of the plurality of second portions 131a2, and may be electrically connected to the second surface of each of the plurality of first portions 131a1. For example, the second electrode portion 131c may be in the shape of a single electrode (or a common electrode) disposed on the entire second surface of the piezoelectric vibrating portion 131a. The second electrode portion 131c may have the same shape as the piezoelectric vibrating portion 131a, but embodiments of this disclosure are not limited thereto. According to embodiments of this disclosure, the second electrode portion 131c may be formed of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode portion 131c may be formed of the same material as the first electrode portion 131b, but embodiments of this disclosure are not limited thereto. As another embodiment of this disclosure, the second electrode portion 131c may be formed of a different material from the first electrode portion 131b.

[0369] The piezoelectric vibration portion 131a can be polarized by applying a certain voltage to the first electrode portion 131b and the second electrode portion 131c in a certain temperature atmosphere or in a temperature atmosphere that can change from high temperature to room temperature, but the embodiments of this disclosure are not limited thereto. For example, the piezoelectric vibration portion 131a can vibrate by alternately and repeatedly contracting and expanding based on the inverse piezoelectric effect according to an externally applied sound signal (or voice signal) to the first electrode portion 131b and the second electrode portion 131c. For example, the piezoelectric vibration portion 131a can vibrate based on the vertical vibration d33 and the planar vibration d31 of the first electrode portion 131b and the second electrode portion 131c. The piezoelectric vibration portion 131a can further enhance the vibration by increasing the displacement of the vibrating member (or vibrating plate or vibrating object) through planar contraction and expansion.

[0370] The vibration device 131 according to the embodiments of the present disclosure may further include a first cover member 131d and a second cover member 131e.

[0371] The first cover member 131d may be disposed on the first surface of the vibration device 131. For example, the first cover member 131d may be configured to cover the first electrode portion 131b. Therefore, the first cover member 131d may protect the first electrode portion 131b and / or the piezoelectric vibration portion 131a.

[0372] The second cover member 131e may be disposed on the second surface of the vibration device 131. For example, the second cover member 131e may be configured to cover the second electrode portion 131c. Therefore, the second cover member 131e may protect the second electrode portion 131c and / or the piezoelectric vibration portion 131a.

[0373] The first cover member 131d and the second cover member 131e according to embodiments of the present disclosure may each comprise one or more materials selected from plastic, fiber, and wood, but embodiments of the present disclosure are not limited thereto. For example, each of the first cover member 131d and the second cover member 131e may comprise the same or different materials. For example, each of the first cover member 131d and the second cover member 131e may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of the present disclosure are not limited thereto.

[0374] According to embodiments of the present disclosure, the first cover member 131d can be connected or coupled to the first electrode portion 131b via the first adhesive layer 131f. For example, the first cover member 131d can be connected or coupled to the first electrode portion 131b via a film lamination process using the first adhesive layer 131f.

[0375] According to embodiments of the present disclosure, the second cover member 131e can be connected or coupled to the second electrode portion 131c via the second adhesive layer 131g. For example, the second cover member 131e can be connected or coupled to the second electrode portion 131c via a film lamination process using the second adhesive layer 131g.

[0376] A first adhesive layer 131f may be disposed between the first electrode portion 131b and the first cover member 131d. A second adhesive layer 131g may be disposed between the second electrode portion 131c and the second cover member 131e. For example, the first adhesive layer 131f and the second adhesive layer 131g may be constructed between the first cover member 131d and the second cover member 131e to completely surround the piezoelectric vibrating portion 131a, the first electrode portion 131b, and the second electrode portion 131c. For example, the piezoelectric vibrating portion 131a, the first electrode portion 131b, and the second electrode portion 131c may be embedded or built into the first adhesive layer 131f and the second adhesive layer 131g.

[0377] Each of the first adhesive layer 131f and the second adhesive layer 131g according to 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 131f and the second adhesive layer 131g 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.

[0378] According to embodiments of this disclosure, either the first cover member 131d or the second cover member 131e can be attached to or connected to the vibrating member (or vibrating plate or vibrating object) via the adhesive member 120. For example, either the first cover member 131d or the second cover member 131e can be attached to or connected to the vibrating member 110 via the adhesive member 120, as referred to above. Figures 1 to 13 As described.

[0379] The vibration device 131 according to the embodiments of the present disclosure may further include a first power line PL1, a second power line PL2, and a pad portion 131p.

[0380] A first power line PL1 can be disposed between the first electrode portion 131b and the first cover member 131d and can be electrically connected to the first electrode portion 131b. For example, the first power line PL1 can be disposed at the first cover member 131d. The first power line PL1 can extend long in the second direction Y and can be electrically connected to the central portion of the first electrode portion 131b. As an embodiment of the present disclosure, the first power line PL1 can be electrically connected to the first electrode portion 131b through an anisotropic conductive film. As another embodiment of the present disclosure, the first power line PL1 can be electrically connected to the first electrode portion 131b through conductive material (or particles) contained in the first adhesive layer 131f.

[0381] The second power line PL2 can be disposed between the second electrode portion 131c and the second cover member 131e and can be electrically connected to the second electrode portion 131c. For example, the second power line PL2 can be disposed at the second cover member 131e. The second power line PL2 can extend long along the second direction Y and can be electrically connected to the central portion of the second electrode portion 131c. As an embodiment of the present disclosure, the second power line PL2 can be electrically connected to the second electrode portion 131c through an anisotropic conductive film. As another embodiment of the present disclosure, the second power line PL2 can be electrically connected to the second electrode portion 131c through a conductive material (or particles) contained in the second adhesive layer 131g. 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 between the first power line PL1 and the second power line PL2 can be prevented.

[0382] The pad portion 131p can be configured to be electrically connected to the first power line PL1 and the second power line PL2. The pad portion 131p can be configured at a peripheral portion of either the first cover member 131d or the second cover member 131e to be electrically connected to a portion (or an end) of each of the first power line PL1 and the second power line PL2.

[0383] According to an embodiment of the present disclosure, the pad portion 131p 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.

[0384] The first pad electrode may be disposed in a peripheral portion of either the first cover member 131d or the second cover member 131e to be electrically connected to a portion of the first power line PL1. For example, the first pad electrode may pass through either the first cover member 131d or the second cover member 131e to be electrically connected to a portion of the first power line PL1.

[0385] The second pad electrode can be arranged parallel to the first pad electrode to be electrically connected to a portion of the second power line PL2. For example, the second pad electrode can pass through either the first cover member 131d or the second cover member 131e to be electrically connected to a portion of the second power line PL2.

[0386] According to embodiments of this disclosure, each of the first power line PL1, the second power line PL2, and the pad portion 131p can be configured to be transparent, translucent, or opaque.

[0387] According to another embodiment of this disclosure, the pad portion 131p can be electrically connected to the signal cable 132.

[0388] The signal cable 132 can be electrically connected to the pad portion 131p disposed at the vibration device 131, and can supply the vibration device 131 with a vibration drive signal (or sound signal or voice signal) provided from the sound processing circuit. According to embodiments of this disclosure, the signal cable 132 may include a first terminal electrically connected to a first pad electrode of the pad portion 131p and a second terminal electrically connected to a second pad electrode of the pad portion 131p. For example, the signal cable 132 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.

[0389] 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 from an external sound data generation circuit. 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 131b via the first terminal of the signal cable 132, the first pad electrode of the pad portion 131p, and the first power line PL1. The second vibration drive signal can be provided to the second electrode portion 131c via the second terminal of the signal cable 132, the second pad electrode of the pad portion 131p, and the second power line PL2.

[0390] According to embodiments of this disclosure, the signal cable 132 may be configured to be transparent, semi-transparent, or opaque.

[0391] As described above, the vibration device 131 according to the embodiments of this disclosure can be implemented as a thin film type, wherein a first portion 131a1 having piezoelectric properties and a second portion 131a2 having flexibility are alternately repeated and connected, thus allowing it to be bent into a shape corresponding to the shape of the vibrating member or vibrating object. For example, when the vibration device 131 is connected or coupled to a vibrating member including various curved surfaces via an adhesive member 120, the vibration device 131 can be bent into a curved shape along the shape of the curved surface portion of the vibrating member, and despite being bent into a curved shape, its reliability against damage or breakage can be maintained.

[0392] Figures 20A to 20D This is a perspective view illustrating a piezoelectric vibration portion of a vibration device according to another embodiment of the present disclosure, which is an example of an embodiment of the present disclosure.

[0393] Reference Figure 20A According to another embodiment of the present disclosure, the piezoelectric vibration portion 131a may include a plurality of first portions 131a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion 131a2 (or one or more second portions) disposed between the plurality of first portions 131a1.

[0394] Each of the plurality of first portions 131a1 may 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 131a1 may have a hexahedral shape (or a hexagonal object shape) of the same size and may be configured as a lattice shape. Each of the plurality of first portions 131a1 may include the same as described above. Figures 17 to 19 The first part 131a1 describes essentially the same piezoelectric material; therefore, similar reference numerals can refer to similar elements and repeated descriptions of them can be omitted.

[0395] The second portion 131a2 may be disposed between the plurality of first portions 131a1 along each of the first direction X and the second direction Y. The second portion 131a2 may be configured to fill the gap or space between two adjacent first portions 131a1, or to surround each of the plurality of first portions 131a1, thus allowing it to be connected or bonded to adjacent first portions 131a1. According to embodiments of the present disclosure, the width of the second portion 131a2 disposed between two adjacent first portions 131a1 along the first direction X may be the same as or different from the width of the first portions 131a1, and the width of the second portion 131a2 disposed between two adjacent first portions 131a1 along the second direction Y may be the same as or different from the width of the first portions 131a1. The second portion 131a2 may include, as referenced above... Figures 17 to 19 The second part 131a2 describes essentially the same organic material; therefore, similar reference numerals can refer to similar elements and repeated descriptions of them can be omitted.

[0396] As described above, the piezoelectric vibration portion 131a according to another embodiment of the present disclosure may include a 1-3 composite structure having piezoelectric characteristics with 1-3 vibration modes, and thus may have a resonant frequency of less than 30 MHz, but the embodiments of the present disclosure are not limited thereto. For example, the resonant frequency of the piezoelectric vibration portion 131a may vary based on at least one or more of the shape, length, and thickness.

[0397] Reference Figure 20B According to another embodiment of the present disclosure, the piezoelectric vibration portion 131a may include a plurality of first portions 131a1 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) 131a2 disposed between the plurality of first portions 131a1.

[0398] Each of the plurality of first portions 131a1 may have a flat structure with a circular shape. For example, each of the plurality of first portions 131a1 may have a circular plate shape, but embodiments of the present disclosure are not limited thereto. For example, each of the plurality of first portions 131a1 may have a point shape including an elliptical shape, a polygonal shape, or a ring shape. Each of the plurality of first portions 131a1 may include the shapes described above. Figures 17 to 19 The first part 131a1 describes essentially the same piezoelectric material; therefore, similar reference numerals can refer to similar elements and repeated descriptions of them can be omitted.

[0399] The second portion 131a2 may be disposed between the plurality of first portions 131a1 along each of the first direction X and the second direction Y. The second portion 131a2 may be configured to surround each of the plurality of first portions 131a1, and thus may be connected or bonded to the side surface of each of the plurality of first portions 131a1. Each of the plurality of first portions 131a1 and the second portion 131a2 may be disposed (or arranged) in parallel on the same plane (or the same layer). The second portion 131a2 may include elements referenced above. Figures 17 to 19 The second part 131a2 describes essentially the same organic material; therefore, similar reference numerals can refer to similar elements and repeated descriptions of them can be omitted.

[0400] Reference Figure 20C According to another embodiment of the present disclosure, the piezoelectric vibration portion 131a may include a plurality of first portions 131a1 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) 131a2 disposed between the plurality of first portions 131a1.

[0401] Each of the plurality of first portions 131a1 may have a flat structure in the shape of a triangle. For example, each of the plurality of first portions 131a1 may have a triangular shape, but embodiments of this disclosure are not limited thereto. Each of the plurality of first portions 131a1 may include the shape described above. Figures 17 to 19 The first part 131a1 describes essentially the same piezoelectric material; therefore, similar reference numerals can refer to similar elements and repeated descriptions of them can be omitted.

[0402] According to embodiments of this disclosure, four adjacent first portions 131a1 of a plurality of first portions 131a1 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 131a1 forming the quadrilateral shape may be adjacent to each other in the central portion (or central part) of the quadrilateral shape.

[0403] The second portion 131a2 may be disposed between the plurality of first portions 131a1 along each of the first direction X and the second direction Y. The second portion 131a2 may be configured to surround each of the plurality of first portions 131a1, and thus may be connected or bonded to the side surface of each of the plurality of first portions 131a1. Each of the plurality of first portions 131a1 and the second portion 131a2 may be disposed (or arranged) in parallel on the same plane (or the same layer). The second portion 131a2 may include elements referenced above. Figures 17 to 19 The second part 131a2 describes essentially the same organic material; therefore, similar reference numerals can refer to similar elements and repeated descriptions of them can be omitted.

[0404] Reference Figure 20D According to another embodiment of the present disclosure, the piezoelectric vibration portion 131a may include a plurality of first portions 131a1 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) 131a2 disposed between the plurality of first portions 131a1.

[0405] Each of the plurality of first portions 131a1 may have a flat structure in the shape of a triangle. For example, each of the plurality of first portions 131a1 may have a triangular shape, but embodiments of this disclosure are not limited thereto. Each of the plurality of first portions 131a1 may include the shape described above. Figures 17 to 19 The first part 131a1 describes essentially the same piezoelectric material; therefore, similar reference numerals can refer to similar elements and repeated descriptions of them can be omitted.

[0406] According to another embodiment of this disclosure, six adjacent first portions 131a1 of a plurality of first portions 131a1 may be adjacent to each other to form a hexagonal shape (or a regular hexagonal shape). The vertices of the six adjacent first portions 131a1 forming the hexagonal shape may be adjacent to each other in the central portion (or central part) of the hexagonal shape.

[0407] The second portion 131a2 may be disposed between the plurality of first portions 131a1 along each of the first direction X and the second direction Y. The second portion 131a2 may be configured to surround each of the plurality of first portions 131a1, and thus may be connected or bonded to the side surface of each of the plurality of first portions 131a1. Each of the plurality of first portions 131a1 and the second portion 131a2 may be disposed (or arranged) in parallel on the same plane (or the same layer). The second portion 131a2 may include components referenced above. Figures 17 to 19 The second part 131a2 describes essentially the same organic material; therefore, similar reference numerals can refer to similar elements and repeated descriptions of them can be omitted.

[0408] Figure 21 A vibration device according to another embodiment of the present disclosure is illustrated. Figure 22 It is along Figure 21 The cross-sectional view of line EE′ shown. Figure 21 and 22 Examples of modifications were shown. Figures 1 to 13 Another embodiment of the vibration device shown in one or more of them.

[0409] Reference Figure 21 and Figure 22According to another embodiment of the present disclosure, the vibration device 131 may include a first vibration generating part 131-1 and a second vibration generating part 131-2.

[0410] Each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be electrically separated and disposed while being spaced apart from each other along the first direction X. Each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can alternately and repeatedly contract and / or expand to vibrate based on the piezoelectric effect. For example, the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be disposed or laid flat along the first direction X at a certain interval (or distance) SD1. Therefore, the vibration device 131 in which the first vibration generating portion 131-1 and the second vibration generating portion 131-2 are laid flat can be a vibration array, a vibration array portion, a vibration module array portion, a vibration array structure, a laid-flat vibration array, a laid-flat vibration array module, or a laid-flat vibration membrane, but the embodiments of this disclosure are not limited thereto.

[0411] Each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 according to embodiments of the present disclosure may have a quadrilateral shape. For example, each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 may have a quadrilateral shape with a width of approximately 5 cm or more. For example, each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 may have a square shape with a size of 5 cm × 5 cm or more, but embodiments of the present disclosure are not limited thereto.

[0412] Each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be arranged or laid flat on the same plane, so that the vibration device 131 can have an enlarged area based on laying flat the first vibration generating portion 131-1 and the second vibration generating portion 131-2 which have relatively small dimensions.

[0413] Each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be arranged or laid out at a certain interval (or distance) SD1, thus enabling it to be driven as a complete unit rather than an independently driven vibration device (or a single vibration device). According to embodiments of this disclosure, with respect to the first direction X, the first separation distance (or first distance or first interval) SD1 between the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be greater than 0.1 mm and less than 3 cm, but embodiments of this disclosure are not limited thereto.

[0414] According to embodiments of this disclosure, each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be set or tiled with a first separation distance (or interval) SD1 of 0.1 mm or more and less than 3 cm. Therefore, it can be driven as a vibration device to increase the reproduction frequency band and sound pressure level characteristics of the sound generated based on the individual vibrations of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. For example, the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be set with an interval SD1 of 0.1 mm or more and less than 5 mm to increase the reproduction frequency band of the sound generated based on the individual vibrations of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 and to increase the sound in the low-pitched audio band (e.g., sound pressure level characteristics below 500 Hz).

[0415] According to embodiments of the present disclosure, when the first vibration generating portion 131-1 and the second vibration generating portion 131-2 are provided with an interval SD1 of less than 0.1 mm or without an interval SD1, the reliability of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 or the vibration device 131 can be reduced due to damage or cracks caused by the physical contact between them that occurs when each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 vibrates.

[0416] According to embodiments of this disclosure, when the first vibration generating portion 131-1 and the second vibration generating portion 131-2 are arranged at an interval of 3 cm or more SD1, the independent vibration of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 cannot be driven as a vibration device. Therefore, the reproduction frequency band and sound pressure level characteristics of the sound generated based on the vibrations of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be reduced. For example, when the first vibration generating portion 131-1 and the second vibration generating portion 131-2 are arranged at an interval of 3 cm or more SD1, the sound characteristics and sound pressure level characteristics of the low-pitched sound frequency band (e.g., below 500 Hz) may each decrease.

[0417] According to an embodiment of this disclosure, when the first vibration generating portion 131-1 and the second vibration generating portion 131-2 are arranged at a 5mm interval SD1, each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 may not be perfectly driven as a vibration device. Therefore, the sound characteristics and sound pressure level characteristics of the low-pitched audio band (e.g., below 200Hz) may be reduced respectively.

[0418] According to another embodiment of this disclosure, when the first vibration generating portion 131-1 and the second vibration generating portion 131-2 are arranged at a 1 mm interval SD1, each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be driven as a vibration device. Therefore, the sound reproduction frequency band can be increased, and the sound in the low-pitched audio frequency band (e.g., sound pressure level characteristics below 500 Hz) can be increased. For example, when the first vibration generating portion 131-1 and the second vibration generating portion 131-2 are arranged at a 1 mm interval SD1, the vibration device 131 can be implemented as a large-area vibrator expanded based on the separation distance between the first vibration generating portion 131-1 and the second vibration generating portion 131-2. Therefore, the vibration device 131 can be driven as a large-area vibrator based on the individual vibrations of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. Thus, the sound characteristics and sound pressure level characteristics can be increased respectively, as can the sound reproduction frequency band and the low-pitched audio frequency band generated based on the large-area vibration of the vibration device 131.

[0419] Therefore, in order to achieve individual vibration (or a single vibration device) of the first vibration generating part 131-1 and the second vibration generating part 131-2, the separation distance SD1 between the first vibration generating part 131-1 and the second vibration generating part 131-2 can be adjusted to be 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 131-1 and the second vibration generating part 131-2 and increase the sound pressure level characteristics of the low-pitched audio band, the separation distance SD1 between the first vibration generating part 131-1 and the second vibration generating part 131-2 can be adjusted to be 0.1 mm or more and less than 5 mm.

[0420] Each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 according to embodiments of the present disclosure may include a piezoelectric vibration portion 131a, a first electrode portion 131b, and a second electrode portion 131c.

[0421] The piezoelectric vibration portion 131a of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 may include a piezoelectric material (or an electroactive material) having a piezoelectric effect. For example, the piezoelectric vibration portion 131a of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 may be configured as described above. Figure 19 and Figures 20A to 20D Any of the piezoelectric vibration parts 131a described are substantially the same; therefore, similar reference numerals may refer to similar elements and their repeated descriptions may be omitted.

[0422] According to embodiments of this disclosure, each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 may include the above-mentioned references. Figure 19 and Figures 20A to 20D The piezoelectric vibration portion 131a described may be any one of the piezoelectric vibration portions 131a, or may include different piezoelectric vibration portions 131a.

[0423] The first electrode portion 131b may be disposed on the first surface of the piezoelectric vibration portion 131a and may be electrically connected to the first surface of the piezoelectric vibration portion 131a. For example, the first electrode portion 131b may be related to the above-mentioned reference. Figure 18 The first electrode portion 131b described is substantially the same; therefore, similar reference numerals can refer to similar elements, and their repeated descriptions can be omitted.

[0424] The second electrode portion 131c can be disposed on the second surface of the piezoelectric vibration portion 131a and electrically connected to the second surface of the piezoelectric vibration portion 131a. The second electrode portion 131c can be related to the above-mentioned reference. Figure 18 The second electrode portion 131c described is substantially the same; therefore, similar reference numerals can refer to similar elements, and their repeated descriptions can be omitted.

[0425] According to another embodiment of the present disclosure, the vibration device 131 may further include a first cover member 131d and a second cover member 131e.

[0426] The first cover member 131d may be disposed on the first surface of the vibration device 131. For example, the first cover member 131d may cover the first electrode portion 131b disposed on the first surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. Therefore, the first cover member 131d may be connected to the first surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2, or may support the first surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. Thus, the first cover member 131d may protect the first surface or the first electrode portion 131b of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2.

[0427] The second cover member 131e may be disposed on the second surface of the vibration device 131. For example, the second cover member 131e may cover the second electrode portion 131c disposed on the second surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. Therefore, the second cover member 131e may be connected to the second surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2, or may support the second surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. Thus, the second cover member 131e may protect the second surface or the second electrode portion 131c of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2.

[0428] The first cover member 131d and the second cover member 131e according to embodiments of the present disclosure may each comprise one or more materials selected from plastic, fiber, and wood, but embodiments of the present disclosure are not limited thereto. For example, each of the first cover member 131d and the second cover member 131e may comprise the same material or different materials. For example, each of the first cover member 131d and the second cover member 131e may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of the present disclosure are not limited thereto.

[0429] According to embodiments of the present disclosure, the first cover member 131d can be disposed on the first surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 via a first adhesive layer 131f. For example, the first cover member 131d can be directly disposed on the first surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 via a film lamination process using the first adhesive layer 131f. Therefore, each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be integrated (or disposed) or laid flat with the first cover member 131d to have a certain interval SD1.

[0430] According to embodiments of the present disclosure, the second cover member 131e can be disposed on the second surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 via a second adhesive layer 131g. For example, the second cover member 131e can be directly disposed on the second surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 via a film lamination process using the second adhesive layer 131g. Therefore, each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be integrated (or disposed) or laid flat with the second cover member 131e to have a certain interval SD1.

[0431] The first adhesive layer 131f may be disposed between the first vibration generating portion 131-1 and the second vibration generating portion 131-2, and disposed on the first surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. For example, the first adhesive layer 131f may be formed on the rear surface (or inner surface) of the first cover member 131d facing each of the first surfaces of the first vibration generating portion 131-1 and the second vibration generating portion 131-2, filling between the first vibration generating portion 131-1 and the second vibration generating portion 131-2, and disposed between the first cover member 131d and the first surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2.

[0432] The second adhesive layer 131g may be disposed between the first vibration generating portion 131-1 and the second vibration generating portion 131-2 and on the second surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. For example, the second adhesive layer 131g may be formed on the front surface (or inner surface) of the second cover member 131e facing the second surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2, filling between the first vibration generating portion 131-1 and the second vibration generating portion 131-2, and disposed between the second cover member 131e and the second surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2.

[0433] The first adhesive layer 131f and the second adhesive layer 131g can be connected or joined to each other between the first vibration generating portion 131-1 and the second vibration generating portion 131-2. Therefore, each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be surrounded by the first adhesive layer 131f and the second adhesive layer 131g. For example, the first adhesive layer 131f and the second adhesive layer 131g can be constructed between the first cover member 131d and the second cover member 131e to completely surround the first vibration generating portion 131-1 and the second vibration generating portion 131-2. For example, each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be embedded or built into the first adhesive layer 131f and the second adhesive layer 131g.

[0434] Each of the first adhesive layer 131f and the second adhesive layer 131g according to 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 131f and the second adhesive layer 131g may include epoxy resin, acrylic resin, silicone resin, or polyurethane resin, but embodiments of the present disclosure are not limited thereto. Each of the first adhesive layer 131f and the second adhesive layer 131g may be configured to be transparent, translucent, or opaque.

[0435] According to another embodiment of the present disclosure, the vibration device 131 may further include a first power line PL1, a second power line PL2, and a pad portion 131p.

[0436] A first power line PL1 may be disposed at the first cover member 131d. The first power line PL1 may be disposed on the rear surface of the first surface of the first cover member 131d facing each of the first vibration generating portions 131-1 and 131-2. The first power line PL1 may be electrically connected to the first electrode portion 131b of each of the first vibration generating portions 131-1 and 131-2. For example, the first power line PL1 may be directly electrically connected to the first electrode portion 131b of each of the first vibration generating portions 131-1 and 131-2. As an embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode portion 131b of each of the first vibration generating portions 131-1 and 131-2 via an anisotropic conductive film. As another embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode portion 131b of each of the first vibration generating portions 131-1 and 131-2 via a conductive material (or particles) contained in the first adhesive layer 131f.

[0437] According to embodiments 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 131b of the first vibration generating portion 131-1. The second upper power line PL12 may be electrically connected to the first electrode portion 131b of the second vibration generating portion 131-2.

[0438] The second power line PL2 can be disposed at the second cover member 131e. The second power line PL2 can be disposed on the front surface of the second surface of the second cover member 131e facing each of the first vibration generating portions 131-1 and 131-2. The second power line PL2 can be electrically connected to the second electrode portion 131c of each of the first vibration generating portions 131-1 and 131-2. For example, the second power line PL2 can be directly electrically connected to the second electrode portion 131c of each of the first vibration generating portions 131-1 and 131-2. As an embodiment of this disclosure, the second power line PL2 can be electrically connected to the second electrode portion 131c of each of the first vibration generating portions 131-1 and 131-2 through an anisotropic conductive film. As another embodiment of this disclosure, the second power line PL2 can be electrically connected to the second electrode portion 131c of each of the first vibration generating portions 131-1 and 131-2 through a conductive material (or particles) contained in the second adhesive layer 131g.

[0439] According to embodiments 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 a second direction Y. For example, the first lower power line PL21 may be electrically connected to the second electrode portion 131c of the first vibration generating portion 131-1. 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 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 131c of the second vibration generating portion 131-2. 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 to not 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.

[0440] The pad portion 131p can be configured to be electrically connected to the first power line PL1 and the second power line PL2. The pad portion 131p can be configured at a peripheral portion of either the first cover member 131d or the second cover member 131e to be electrically connected to a portion (or an end) of each of the first power line PL1 and the second power line PL2.

[0441] According to an embodiment of the present disclosure, the pad portion 131p 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.

[0442] 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.

[0443] According to another embodiment of the present disclosure, the vibration device 131 may also include a signal line 132.

[0444] The signal cable 132 can be electrically connected to the pad portion 131p disposed at the vibration device 131, and can provide the vibration device 131 with a vibration drive signal (or sound signal or voice signal) provided from the sound processing circuit. According to embodiments of this disclosure, the signal cable 132 may include a first terminal electrically connected to a first pad electrode of the pad portion 131p, and a second terminal electrically connected to a second pad electrode of the pad portion 131p. For example, the signal cable 132 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.

[0445] 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. 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 131b of each of the first vibration generation portion 131-1 and the second vibration generation portion 131-2 via the first terminal of the signal cable 132, the first pad electrode of the pad portion 131p, and the first power line PL1. The second vibration drive signal can be provided to the second electrode portion 131c of each of the first vibration generation portion 131-1 and the second vibration generation portion 131-2 via the second terminal of the signal cable 132, the second pad electrode of the pad portion 131p, and the second power line PL2.

[0446] As mentioned above, in accordance with the above references Figures 17 to 19 Similar to the described vibration device 131, the vibration device 131 according to another embodiment of this disclosure can be implemented as a thin film type. Therefore, it can be bent into a shape corresponding to the shape of the vibrating member or vibrating object, and the vibrating member including various curved surface portions can be easily vibrated, thereby enhancing the sound characteristics and / or sound pressure level characteristics in the low-pitched audio band generated by the vibration of the vibrating member. In addition, the vibration device 131 according to another embodiment of this disclosure may include a first vibration generating portion 131-1 and a second vibration generating portion 131-2 arranged (or laid flat) at a certain interval SD1, thereby being implemented as a single vibrator without being driven independently. Therefore, it can be driven as a large-area vibrator based on the individual vibration of the first vibration generating portion 131-1 and the second vibration generating portion 131-2.

[0447] Figure 23 A vibration device according to another embodiment of the present disclosure is illustrated. Figure 23 Examples are shown in Figure 21 and Figure 22 The illustrated vibration device includes an embodiment with four vibration generating parts. Therefore, in the following text, other elements besides the four vibration generating parts and related components can be referred to by similar reference numerals, and their descriptions may be omitted or simply repeated. Figure 22 The example shown is along Figure 23 The surface of the cross section cut by the line EE′ shown.

[0448] Combination Figure 22 For reference Figure 23 According to another embodiment of the present disclosure, the vibration device 131 may include a plurality of vibration generating portions 131-1 to 131-4.

[0449] Multiple vibration generating portions 131-1 to 131-4 can be electrically disconnected from each other and spaced apart along a first direction X and a second direction Y. For example, the multiple vibration generating portions 131-1 to 131-4 can be arranged or laid flat in an i×j configuration on the same plane. Therefore, the vibration device 131 can be implemented with a large area by having multiple vibration generating portions 131-1 to 131-4 with relatively small dimensions based on the flat layout. For example, i can be the number of vibration generating portions arranged along the first direction X and can be a natural number greater than 2, while j can be the number of vibration generating portions arranged along the second direction Y and can be a natural number greater than 2 that is the same as or different from i. For example, the multiple vibration generating portions 131-1 to 131-4 can be arranged or laid flat in a 2×2 configuration, but embodiments of this disclosure are not limited thereto. Hereinafter, an example of the vibration device 131 including the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 will be described.

[0450] According to embodiments of this disclosure, the first vibration generating portion 131-1 and the second vibration generating portion 131-2 may be spaced apart from each other along a first direction X. The third vibration generating portion 131-3 and the fourth vibration generating portion 131-4 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 131-1 and the second vibration generating portion 131-2 along a second direction Y. The first vibration generating portion 131-1 and the third vibration generating portion 131-3 may be spaced apart from each other along the second direction Y so as to face each other. The second vibration generating portion 131-2 and the fourth vibration generating portion 131-4 may be spaced apart from each other along the second direction Y so as to face each other.

[0451] The first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 can be disposed between the first cover member 131d and the second cover member 131e. For example, each of the first cover member 131d and the second cover member 131e can be connected to the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4, or can jointly support the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4. Therefore, the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 can be driven as a vibration device (or a single vibration device). For example, the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 can be laid flat at certain intervals by the cover members 131d and 131e, and therefore can be driven as a vibration device (or a single vibration device).

[0452] According to the embodiments of this disclosure, as referred to above... Figure 21 and Figure 22 As described, for complete single-unit vibration or large-area vibration, the first vibration generating portion 131-1 to the fourth vibration generating portion 131-4 can be set (or tiled) at intervals SD1 and SD2 of 0.1 mm or more and less than 3 cm, or can be set (or tiled) at intervals SD1 and SD2 of 0.1 mm or more and less than 5 mm along each of the first direction X and the second direction Y.

[0453] Each of the first vibration generating portion 131-1 to the fourth vibration generating portion 131-4 may include a piezoelectric vibration portion 131a, a first electrode portion 131b, and a second electrode portion 131c.

[0454] The piezoelectric vibration portion 131a of each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 may include a piezoelectric material (or an electroactive material) having a piezoelectric effect. The piezoelectric vibration portion 131a of each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 may be configured as described above. Figure 19 and Figures 20A to 20D Any of the piezoelectric vibration parts 131a described are substantially the same; therefore, similar reference numerals may refer to similar elements and their repeated descriptions may be omitted.

[0455] According to embodiments of this disclosure, each of the first vibration generating portion 131-1 to the fourth vibration generating portion 131-4 may include the above-mentioned references. Figure 19 and Figures 20A to 20D The piezoelectric vibration portion 131a described may be any one of the piezoelectric vibration portions 131a, or may include different piezoelectric vibration portions 131a.

[0456] According to another embodiment of this disclosure, one or more of the first vibration generating portion 131-1 to the fourth vibration generating portion 131-4 may include the above-mentioned references. Figure 19 and Figures 20A to 20D Different piezoelectric vibration portions 131a are described.

[0457] The first electrode portion 131b can be disposed on the first surface of the corresponding piezoelectric vibration portion 131a and electrically connected to the first surface of the piezoelectric vibration portion 131a. The first electrode portion 131b can be related to the above-mentioned reference. Figure 18 The first electrode portion 131b described is substantially the same; therefore, similar reference numerals can refer to similar elements and their repeated descriptions can be omitted.

[0458] The second electrode portion 131c can be disposed on the second surface of the corresponding piezoelectric vibration portion 131a and electrically connected to the second surface of the piezoelectric vibration portion 131a. The second electrode portion 131c can be related to the above-mentioned reference. Figure 18 The second electrode portion 131c described is substantially the same; therefore, similar reference numerals can refer to similar elements and their repeated descriptions can be omitted.

[0459] According to embodiments of this disclosure, the first adhesive layer 131f and the second adhesive layer 131g may be connected or joined to each other between the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4. Therefore, each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 may be surrounded by the first adhesive layer 131f and the second adhesive layer 131g. For example, the first adhesive layer 131f and the second adhesive layer 131g may be constructed between the first cover member 131d and the second cover member 131e to completely surround each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4. For example, each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 may be embedded or built into the first adhesive layer 131f and the second adhesive layer 131g.

[0460] According to another embodiment of the present disclosure, the vibration device 131 may further include a first power line PL1, a second power line PL2, and a pad portion 131p.

[0461] Apart from the electrical connection structure between the first power line PL1 and the second power line PL2 and the first vibration generating parts 131-1 to the fourth vibration generating parts 131-4, the first power line PL1 and the second power line PL2 can be connected to the above-mentioned reference. Figure 21 and Figure 22 The first power line PL1 and the second power line PL2 are substantially 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 131-1 to the fourth vibration generating part 131-4 will be described briefly below.

[0462] According to embodiments 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 131b of each of the first vibration generating portions 131-1 and the third vibration generating portion 131-3 (or the first group or the first vibration generating group) disposed in the first row parallel to the second direction Y among the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4. The second upper power line PL12 may be electrically connected to the first electrode portion 131b of each of the second vibration generating portions 131-2 and the fourth vibration generating portions 131-4 (or the second group or the second vibration generating group) disposed in the second row parallel to the second direction Y among the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4.

[0463] According to embodiments 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 131c of each of the first vibration generating portions 131-1 and the third vibration generating portion 131-3 (or the first group or the first vibration generating group) disposed in the first row parallel to the second direction Y among the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4. The second lower power line PL22 may be electrically connected to the second electrode portion 131c of each of the second vibration generating portions 131-2 and the fourth vibration generating portion 131-4 (or the second group or the second vibration generating group) disposed in the second row parallel to the second direction Y among the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4.

[0464] The pad portion 131p can be constructed in the peripheral portion of either the first cover member 131d or the second cover member 131e to be electrically connected to one side (or one end) of each of the first power line PL1 and the second power line PL2. The pad portion 131p can be connected to... Figure 21 and Figure 22 The pad portion 131p shown is basically the same; therefore, similar reference numerals can refer to similar components and repeated descriptions of them can be omitted.

[0465] As described above, the vibration device 131 according to another embodiment of this disclosure may have the same characteristics as described above. Figures 17 to 22 The vibration device 131 described has the same effect, therefore, its repeated description can be omitted.

[0466] Figure 24 This is an example. Figures 14 to 16 The diagram shows a plan view of the vibration device of the vibration equipment. Figure 25 It is along Figure 24 The cross-sectional view shown is taken from line FF′.

[0467] Reference Figure 24 and Figure 25 According to another embodiment of the present disclosure, the vibration device 230 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 the present disclosure are not limited thereto.

[0468] The vibration device 230 may include a plurality of vibration devices 231-1 to 231-5 corresponding to a plurality of regions A1 to A5 of the vibration member. The vibration device 230 may include one or more first vibration devices to nth vibration devices 231-1 to 231-5 corresponding to the first to nth regions A1 to A5 of the vibration member.

[0469] One or more of the first to nth vibrating devices 231-1 to 231-5 can be arranged or laid out with a separation distance of 0.1 mm or more and less than 3 cm or an interval of 0.1 mm or more and less than 5 mm, so as to be based on the above reference. Figures 21 to 23 It is driven as a vibration device for the reasons described.

[0470] Each of one or more first vibration devices to nth vibration devices 231-1 to 231-5 may include a vibration generating portion, which includes a piezoelectric vibration portion 231a, a first electrode portion 231b, and a second electrode portion 231c.

[0471] The piezoelectric vibrating portion 231a of each of one or more first vibration devices to nth vibration devices 231-1 to 231-5 may include a plurality of first portions 231a1 and second portions 231a2 located between the plurality of first portions 231a1. For example, the piezoelectric vibrating portion 231a of each of one or more first vibration devices to nth vibration devices 231-1 to 231-5 may include a plurality of first portions 231a1 and one or more second portions 231a2 that may surround the side surface of each of the plurality of first portions 231a1.

[0472] In one or more first vibration devices 231-1, a plurality of first portions 231a1 can be configured to have the same size (or diameter) and can be implemented as a circular plate shape suitable for outputting the same ultrasonic waves. A second portion 231a2 can be configured to surround the side surface of each of the plurality of first portions 231a1 having a circular plate shape. For example, in addition to the piezoelectric vibrating portions 231a of one or more first vibration devices 231-1 being arranged in a row along the second direction Y, the piezoelectric vibrating portions 231a can be configured to be similar to... Figure 20B The piezoelectric vibration part 231a shown is basically the same.

[0473] In one or more second vibration devices 231-2, a plurality of first portions 231a1 may be arranged at intervals along a first direction X, having different widths along the first direction X and the same length along a second direction Y. For example, the width of each of the plurality of first portions 231a1 may increase along the first direction X toward the central region of the vibrating member. In this respect, in one or more examples, the width of the first portion 231a1 (located closest to the central region of the vibrating member along the first direction X) may be greater than the width of the first portion 231a1 (located second closest to the central region of the vibrating member along the first direction X), which may be greater than the width of the first portion 231a1 (located third closest to the central region of the vibrating member along the first direction X), which may be greater than the width of the first portion 231a1 (located fourth closest to the central region of the vibrating member along the first direction X). The second portion 231a2 may be configured to surround the side surface of each of the plurality of first portions 231a1 having a linear shape. For example, except that the piezoelectric vibrating portions 231a of one or more second vibrating devices 231-2 have different widths along the first direction X, the piezoelectric vibrating portions 231a can be configured to be similar to... Figure 19 The piezoelectric vibration part 131a shown is basically the same.

[0474] In one or more third vibration devices 231-3, a plurality of first portions 231a1 may be arranged at intervals along a first direction X, having different widths along the first direction X and the same length along a second direction Y. For example, the width of each of the plurality of first portions 231a1 may increase along the first direction X toward the central region of the vibrating member. In this respect, in one or more examples, the width of the first portion 231a1 (located in the central region of the vibrating member along the first direction X) may be greater than the width of the first portion 231a1 (located adjacent to the central region of the vibrating member along the first direction X). For example, the width of each of the plurality of first portions 231a1 may have a horizontally symmetrical structure relative to the centerline of the vibrating member parallel to the second direction Y. The second portion 231a2 may be configured to surround the side surface of each of the plurality of first portions 231a1 having a linear shape. For example, in addition to the piezoelectric vibrating portions 231a of one or more third vibration devices 231-3 having different widths along the first direction X, the piezoelectric vibrating portions 231a may be configured to be horizontally symmetrical with respect to the centerline of the vibrating member parallel to the second direction Y. Figure 19 The piezoelectric vibration part 131a shown is basically the same.

[0475] In one or more fourth vibration devices 231-4, a plurality of first portions 231a1 may be arranged at intervals along a first direction X, having different widths along the first direction X and the same length along a second direction Y. For example, the width of each of the plurality of first portions 231a1 may increase along the first direction X toward the central region of the vibrating member. A second portion 231a2 may be configured to surround the side surface of each of the plurality of first portions 231a1 having a linear shape. For example, the width of each of the plurality of first portions 231a1 may have a horizontally symmetrical structure relative to the centerline of the vibrating member. In addition to the piezoelectric vibrating portions 231a of one or more fourth vibration devices 231-4 having different widths along the first direction X, the piezoelectric vibrating portions 231a may be configured to... Figure 19 The piezoelectric vibration part 131a shown is basically the same.

[0476] In one or more fifth vibration devices 231-5, the plurality of first portions 231a1 can be configured to have different dimensions (or diameters) and can be implemented as circular plate shapes suitable for outputting different ultrasonic waves. Second portions 231a2 can be configured to surround the side surface of each of the plurality of first portions 231a1 having a circular plate shape. For example, except that the piezoelectric vibrating portions 231a of one or more fifth vibration devices 231-5 have different dimensions, the piezoelectric vibrating portions 231a can be configured to be substantially the same as the piezoelectric vibrating portions 231a of one or more first vibration devices 231-1.

[0477] In each of one or more first to nth vibration devices 231-1 to 231-5, the piezoelectric vibration portion 231a may include the portion referred to above. Figures 17 to 19 The piezoelectric materials described in the first part 131a1 are essentially the same as those piezoelectric materials, so repeated descriptions of them can be omitted.

[0478] In the piezoelectric vibrating portion 231a of each of one or more first to nth vibrating devices 231-1 to 231-5, a second portion 231a2 may be configured to fill the gap between the plurality of first portions 231a1 disposed in each of the piezoelectric vibrating portions 231a of one or more first to nth vibrating devices 231-1 to 231-5, and may have a similarity to Figures 20A to 20D The second part 231a2 shown is a similar integral connection structure to the one described above. The second part 231a2 may include a connection structure similar to the one referenced above. Figures 17 to 19 The organic materials described in the second part 231a2 are essentially the same as the organic materials described in the second part, therefore, their repeated description can be omitted.

[0479] The first electrode portion 231b may be disposed on the first surface of the piezoelectric vibrating portion 231a disposed at each of one or more of the first to nth vibrating devices 231-1 to 231-5, and may be individually connected to the plurality of first portions 231a1 disposed at the piezoelectric vibrating portion 231a. In addition to the first electrode portion 231b being individually connected to each of the plurality of first portions 231a1 disposed in the corresponding piezoelectric vibrating portion 231a, the first electrode portion 231b may be connected to the aforementioned references. Figure 18 The first electrode portion 131b described is essentially the same, so its repeated description can be omitted.

[0480] The second electrode portion 231c can be disposed on the second surface of the piezoelectric vibrating portion 231a disposed at each of one or more of the first to nth vibrating devices 231-1 to 231-5, and can be commonly connected to a plurality of first portions 231a1 disposed at the corresponding piezoelectric vibrating portion 231a. In addition to the second electrode portion 231c being commonly connected to the plurality of first portions 231a1 disposed at the corresponding piezoelectric vibrating portion 231a, the first electrode portion 231b can be connected to the aforementioned... Figure 18 The first electrode portion 131b described is essentially the same, so its repeated description can be omitted.

[0481] According to another embodiment of the present disclosure, the vibration device 230 may further include: a first cover member 131d, which is disposed on a first surface of each of one or more first vibration devices 231-1 to 231-5 via a first adhesive layer 131f; and a second cover member 131e, which is disposed on a second surface of each of one or more first vibration devices 231-1 to 231-5 via a second adhesive layer 131g. The first cover member 131d, the second cover member 131e, the first adhesive layer 131f, and the second adhesive layer 131g may be bonded to the above-mentioned surfaces. Figures 21 to 23 The first cover member 131d, the second cover member 131e, the first adhesive layer 131f, and the second adhesive layer 131g described are substantially the same. Therefore, similar reference numerals refer to similar elements and repeated descriptions of them can be omitted.

[0482] According to another embodiment of the present disclosure, the vibration device 230 may further include a plurality of first power lines PL1 disposed at the first cover member 131d, a second power line PL2 disposed at the second cover member 131e, and a pad portion 131p electrically connected to the plurality of first power lines PL1 and the plurality of second power lines PL2.

[0483] In addition to each of the plurality of first power lines PL1 being individually connectable to each of the first electrode portions 131b constructed at each of one or more of the first to nth vibration devices 231-1 to 231-5, each of the plurality of first power lines PL1 can be connected to the first electrode portion 131b constructed at each of the first to nth vibration devices 231-1 to 231-5 as described above. Figures 21 to 23 The description of the first power line PL1 is basically the same, so its repeated description can be omitted.

[0484] In addition to a second power line PL2 being able to be commonly connected to each of the second electrode portions 131c constructed at each of one or more of the first to nth vibration devices 231-1 to 231-5, a second power line PL2 may be connected to the above-mentioned references. Figures 21 to 23 The description of the second power line PL2 is basically the same, so its repeated description can be omitted.

[0485] The pad portion 131p may be constructed in a peripheral portion of either the first cover member 131d or the second cover member 131e to be electrically connected to one side (or one end) of each of the first power line PL1 and the second power line PL2.

[0486] According to embodiments of the present disclosure, the pad portion 131p may include a plurality of first pad electrodes electrically connected to one end of a plurality of first power lines PL1, and a plurality of second pad electrodes electrically connected to one end of a plurality of second power lines PL2. Besides including a plurality of first pad electrodes, the pad portion 131p may be similar to the above-mentioned... Figures 21 to 23 The pad portion 131p is basically the same as described, so its repeated description can be omitted.

[0487] According to another embodiment of the present disclosure, the vibration device 230 may also include a signal cable 132.

[0488] The signal cable 132 can be electrically connected to the pad portion 131p and can provide a vibration drive signal (or sound signal or voice signal) from the sound processing circuit to each of one or more first to nth vibration devices 231-1 to 231-5. According to embodiments of this disclosure, the signal cable 132 may include a plurality of first terminals electrically connected to a plurality of first pad electrodes of the pad portion 131p, and second terminals electrically connected to second pad electrodes of the pad portion 131p. In addition to having a plurality of first terminals, the signal cable 132 can be connected to the above-mentioned referenced... Figures 21 to 23 The description of signal cable 132 is basically the same, so its repeated description can be omitted.

[0489] As described above, the vibration device 230 according to another embodiment of this disclosure may have the same features as those mentioned above. Figures 17 to 19 The vibration device 131 described has the same effect as the vibration equipment.

[0490] Figure 26 A vibration device according to another embodiment of the present disclosure is illustrated. Figure 26 Examples are shown by modifying Figures 17 to 20D The vibration device shown is implemented using a signal cable. Therefore, in the following text, other components besides the signal cable and related elements may be referred to by similar reference numerals, and their repeated descriptions may be omitted or briefly given. Figure 18 exemplified in Figure 26 The DD′ line shown.

[0491] Combination Figure 18 For reference Figure 26 In another embodiment of the vibration device 131 according to the present disclosure, the signal cable 132 may include a sound processing circuit 137.

[0492] The sound processing circuit (or signal generation circuit or sound generation circuit) 137 can be mounted on the signal cable 132. For example, the sound processing circuit 137 can be mounted on the peripheral portion of the signal cable 132 adjacent to the pad portion 131p of the vibration device 131. The sound processing circuit 137 can be integrated (or mounted) in the signal cable 132, so the sound processing circuit 137 and the signal cable 132 can be implemented as a single component.

[0493] The signal cable 132 can be configured as a double-sided flexible printed circuit, but the embodiments disclosed herein 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.

[0494] The signal cable 132 according to an embodiment of the present disclosure may include a circuit layer, 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 plurality of contact pads disposed on the upper film and connected to the circuit layer, as well as a first terminal and a second terminal.

[0495] The circuit layer may include a base film, and multiple signal lines formed on one or more of the front and bottom surfaces of the base film, as well as a first drive signal supply line and a second drive signal supply line. For example, the multiple signal lines and 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 Cu and Ag, but the embodiments of this disclosure are not limited thereto.

[0496] 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.

[0497] Each of 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 131p constructed at the vibration device 131.

[0498] The sound processing circuit 137 can be mounted on the signal cable 132 and electrically connected to multiple contact pads. The sound processing circuit 137 can receive sound data (or digital sound data), clock signals, enable signals, and various drive voltages from an external sound data generation circuit via some of the multiple contact pads. The sound processing circuit 137 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 through the corresponding contact pads and corresponding drive signal supply lines. Therefore, the vibration device 131 can vibrate based on the first and second vibration drive signals provided by the sound processing circuit 137 mounted on the signal cable 132 via the signal lines of the signal cable 132, the first and second terminals, the pad portion 131p, and the first power line PL1 and the second power line PL2.

[0499] The sound processing circuit 137 according to an embodiment of the present disclosure may include: a decoding unit that receives sound data provided by an external sound data generation circuit unit; 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 by the decoding unit; a storage circuit that stores setting values ​​of the audio amplifier circuit; a control circuit that controls the operation of each of the audio amplifier circuit and the storage circuit; and passive devices such as resistors.

[0500] 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 provided by the preamplifier circuit to a level suitable for driving the vibration device 131, but embodiments of this disclosure are not limited thereto.

[0501] Each of the decoding unit, audio amplifier circuit, storage circuit, and control circuit can be implemented as an integrated circuit (IC) and can be mounted on signal cable 132. For example, the decoding unit, audio amplifier circuit, storage circuit, and control circuit can be implemented as a single integrated circuit (IC) or a single semiconductor chip.

[0502] As described above, the vibration device 131 according to another embodiment of the present disclosure includes a sound processing circuit 137 mounted on a signal cable 132. Therefore, the connection structure between the vibration device 131, the sound processing circuit 137, and the signal cable 132 and the sound data generation circuit section can be simplified. Furthermore, the sound processing circuit 137 can be positioned adjacent to the vibration device 131. Therefore, a filter circuit including an inductor and a capacitor, used to prevent electromagnetic interference (EMI) and the like due to the length of the signal cable 132 based on the distance between the sound processing circuit 137 and the vibration device 131, can be omitted. However, embodiments of the present disclosure are not limited to this.

[0503] Additionally, in another embodiment of the vibration device 131 according to this disclosure, the signal line 132 on which the sound processing circuit 137 is mounted or integrated can also be equivalently applied to the above-mentioned reference. Figures 17 to 23 One or more of the described vibration devices 131 or Figure 24 and Figure 25 The signal line 132 of the vibration device 230 shown. For example, see the above reference. Figures 17 to 25 The described signal cable 132 may include sound processing circuitry 137, and repetitive descriptions may be omitted.

[0504] Figure 27 A vibration device 131 according to another embodiment of the present disclosure is illustrated. Figure 28 It is along Figure 27 The cross-sectional view shown is taken from line GG′. Figure 29 It is along Figure 27 The cross-sectional view shown is taken from line HH′. Figures 27 to 29 Examples Figures 1 to 13 Another embodiment of the vibration device shown in one or more of the examples is illustrated, and modifications are also shown. Figure 26 The embodiment shown is achieved through the connection structure between the electrode portion and the signal cable.

[0505] Reference Figures 27 to 29 According to another embodiment of the present disclosure, the vibration device 131 may include a vibration generating part and a signal cable 132.

[0506] The vibration generating section may include a piezoelectric vibration section 131a, a first electrode section 131b, and a second electrode section 131c, and may be related to the above-mentioned reference section. Figures 17 to 20D The vibration generating parts of the described vibration device 131 are basically the same; therefore, similar reference numerals can refer to similar elements, and repeated descriptions of them can be omitted.

[0507] The signal cable 132 can be electrically connected to the first electrode portion 131b and the second electrode portion 131c on one side of the vibration device 131, thereby allowing it to be integrated into the vibration generating portion. For example, the signal cable 132 can be directly electrically connected to the first electrode portion 131b and the second electrode portion 131c. Alternatively, the signal cable 132 can be electrically connected to or directly connected to the first electrode portion 131b and the second electrode portion 131c, without referring to the above-mentioned references. Figures 17 to 20D The power cord and solder pads are described.

[0508] The signal cable 132 according to embodiments of the present disclosure may include a first protruding wire FLa and a second protruding wire FLb. For example, the first protruding wire FLa may overlap with at least a portion of the first electrode portion 131b and may be electrically connected to or directly electrically connected to the first electrode portion 131b. The second protruding wire FLb may overlap with at least a portion of the second electrode portion 131c and may be electrically connected to or directly electrically connected to the second electrode portion 131c. For example, each of the first protruding wire FLa and the second protruding wire FLb may be bent toward the corresponding electrode portions 131b and 131c, but embodiments of the present disclosure are not limited thereto. For example, each of the first protruding wire FLa and the second protruding wire FLb may be referred to by terms such as protruding electrode, extension wire, extension electrode, finger wire, or finger electrode, but embodiments of the present disclosure are not limited thereto.

[0509] According to embodiments of the present disclosure, the signal cable 132 may include a main body portion, a first protruding wire FLa and a second protruding wire FLb, and a sound processing circuit 137.

[0510] The main body can be constructed 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 the embodiments disclosed herein are not limited thereto.

[0511] The main body of an embodiment according to this disclosure may include a circuit layer 132a, a lower film 132b connected to a first surface of the circuit layer 132a by a first adhesive 132c, an upper film 132d connected to a second surface of the circuit layer 132a by a second adhesive 132e, and a plurality of contact pads disposed on the upper film 132d and connected to the circuit layer 132a.

[0512] The circuit layer 132a may include a base film, and multiple signal lines formed on one or more of the front and bottom surfaces of the base film, as well as a first drive signal supply line and a second drive signal supply line. 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 Cu and Ag, but the embodiments of this disclosure are not limited thereto.

[0513] 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.

[0514] The first protruding line FLa and the second protruding line FLb can be connected to the first drive signal supply line and the second drive signal supply line respectively disposed at the line layer 132a, or can extend or protrude from each of the first drive signal supply line and the second drive signal supply line through a surface 132s of the main body portion to the outside. Each of the first protruding line FLa and the second protruding line FLb can protrude from a surface 132s of the main body portion by a certain length. For example, each of the first protruding line FLa and the second protruding line FLb can protrude or extend from a surface 132s of the main body portion along the second direction Y to have a length that overlaps with at least a portion of each of the first electrode portions 131b and the second electrode portions 131c.

[0515] The first protruding wire FLa can be bent toward the first electrode portion 131b from one surface 132s of the main body (or one side of the vibrating device 131) and can be electrically connected to at least a portion of the first electrode portion 131b. For example, the first protruding wire FLa can be directly electrically connected to or in contact with at least a portion of the first electrode portion 131b. For example, the first protruding wire FLa can be electrically connected to the first electrode portion 131b via a conductive member such as a conductive ball or conductive double-sided tape.

[0516] The second protruding wire FLb can be bent toward the second electrode portion 131c from one surface 132s of the main body (or one side of the vibrating device 131) and can be electrically connected to at least a portion of the second electrode portion 131c. For example, the second protruding wire FLb can be directly electrically connected to or in contact with at least a portion of the second electrode portion 131c. For example, the second protruding wire FLb can be electrically connected to the second electrode portion 131c via a conductive member such as a conductive ball or conductive double-sided tape.

[0517] The sound processing circuit 137 can be mounted on the signal cable 132 and electrically connected to multiple contact pads. The sound processing circuit 137 can receive sound data (or digital sound data), clock signals, enable signals, and various drive voltages from an external sound data generation circuit through some of the multiple contact pads. The sound processing circuit 137 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 protruding line FLa and the second protruding line FLb respectively through the corresponding contact pads and corresponding drive signal supply lines. Therefore, the vibration device 131 can vibrate based on the first and second vibration drive signals provided by the sound processing circuit 137 mounted on the signal cable 132 through the signal lines, the first and second terminals, the pad portion 131p, and the first and second protruding lines FLa and FLb of the signal cable 132.

[0518] The sound processing circuit 137 according to embodiments of this disclosure may include a decoding unit, an audio amplifier circuit, a storage circuit, a control circuit, and passive components such as resistors. This is consistent with the above-mentioned references. Figure 26 The sound processing circuit 137 described is essentially the same; therefore, similar reference numerals can refer to similar components, and repeated descriptions of them can be omitted.

[0519] The signal cable 132 can directly provide vibration drive signals to the first electrode portion 131b and the second electrode portion 131c through the first protruding line FLa and the second protruding line FLb, respectively. Therefore, the voltage drop caused by the surface resistance characteristics of each of the first electrode portion 131b and the second electrode portion 131c can be reduced, the electrical characteristics of each of the first electrode portion 131b and the second electrode portion 131c can be supplemented, and the degree of freedom in selecting the conductive materials used in the first electrode portion 131b and the second electrode portion 131c can be increased.

[0520] According to another embodiment of the present disclosure, the vibration device 131 may further include a first cover member 131d and a second cover member 131e.

[0521] The first cover member 131d may be disposed on the first surface of the vibration device 131. For example, the first cover member 131d may be configured to cover the first protruding wire Fla and the first electrode portion 131b of the signal cable 132. Therefore, the first cover member 131d can protect the first protruding wire Fla and the first electrode portion 131b of the signal cable 132, and can electrically connect the first electrode portion 131b to the first protruding wire Fla of the signal cable 132, or can maintain the electrical connection between the first electrode portion 131b and the first protruding wire Fla of the signal cable 132.

[0522] The second cover member 131e may be disposed on the second surface of the vibration device 131. For example, the second cover member 131e may be configured to cover the second protruding wire FLb and the second electrode portion 131c of the signal cable 132. Therefore, the second cover member 131e can protect the second protruding wire FLb and the second electrode portion 131c of the signal cable 132, and can electrically connect the second electrode portion 131c to the second protruding wire FLb of the signal cable 132, or can maintain the electrical connection between the second electrode portion 131c and the second protruding wire FLb of the signal cable 132.

[0523] The first cover member 131d and the second cover member 131e according to embodiments of the present disclosure may each comprise one or more materials selected from plastic, fiber, and wood, but embodiments of the present disclosure are not limited thereto. For example, each of the first cover member 131d and the second cover member 131e may comprise the same or different materials. For example, each of the first cover member 131d and the second cover member 131e may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of the present disclosure are not limited thereto.

[0524] According to embodiments of the present disclosure, the first cover member 131d can connect or attach the first electrode portion 131b to the first protruding wire FLa of the signal cable 132 via the first adhesive layer 131f. For example, the first cover member 131d can connect or attach the first electrode portion 131b to the first protruding wire FLa of the signal cable 132 via a film lamination process using the first adhesive layer 131f. Therefore, the first protruding wire (or first finger wire) FLa of the signal cable 132 can be disposed between the first electrode portion 131b and the first cover member 131d, and can be integrated with the vibration device 131.

[0525] According to embodiments of the present disclosure, the second cover member 131e can be connected or coupled to the second protruding wire FLb and the second electrode portion 131c of the signal cable 132 via the second adhesive layer 131g. For example, the second cover member 131e can be connected or coupled to the second protruding wire FLb and the second electrode portion 131c of the signal cable 132 via a film lamination process using the second adhesive layer 131g. Therefore, the second protruding wire (or second finger wire) FLb of the signal cable 132 can be disposed between the second electrode portion 131c and the second cover member 131e, and can be integrated with the vibration device 131.

[0526] Each of the first cover member 131d and the second cover member 131e according to embodiments of the present disclosure may not include or require a pad portion and a power line for receiving vibration drive signals from the signal cable 132. Therefore, each may be a protective film or insulating film for protecting the piezoelectric vibration portion 131a and the first electrode portion 131b and the second electrode portion 131c. For example, each of the first cover member 131d and the second cover member 131e may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of the present disclosure are not limited thereto.

[0527] Each of the first cover member 131d and the second cover member 131e according to embodiments of the present disclosure can be electrically insulated from the first electrode portion 131b and the second electrode portion 131c by the first adhesive layer 131f and the second adhesive layer 131g. Therefore, one or more of the first cover member 131d and the second cover member 131e may include a metal film or a metal plate comprising a metallic material. Each of the first cover member 131d and the second cover member 131e comprising a metallic material can increase the mass of the vibrating device 131 or the piezoelectric vibrating portion 131a to reduce the resonant frequency of the vibrating device 131 or the piezoelectric vibrating portion 131a caused by the increase in mass. Therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched audio band generated based on the vibration of the vibrating device 131 or the piezoelectric vibrating portion 131a can be increased. Each of the first cover member 131d and the second cover member 131e comprising a metallic material may include any one or more materials such as stainless steel, aluminum (Al), aluminum alloy, magnesium (Mg), Mg alloy, and magnesium-lithium (Mg-Li) alloy, but embodiments of the present disclosure are not limited thereto.

[0528] According to embodiments of the present disclosure, each of the first adhesive layer 131f and the second adhesive layer 131g may include an electrically insulating material that is adhesive and capable of compression and decompression. For example, each of the first adhesive layer 131f and the second adhesive layer 131g may include epoxy resin, acrylic resin, silicone resin, or polyurethane resin, but embodiments of the present disclosure are not limited thereto.

[0529] Optionally, at least a portion of the signal cable 132 may be disposed between the first cover member 131d and the second cover member 131e. For example, each of the first protruding wires FLa and the second protruding wires FLb, and a surface 132s of the main body portion (or an edge portion of the main body portion) of the signal cable 132 may be disposed between the first cover member 131d and the second cover member 131e. For example, each of the first protruding wires FLa and the second protruding wires FLb, and a surface 132s of the main body portion of the signal cable 132 may be accommodated in or inserted into the vibration device 131. Therefore, at least a portion of each of the first protruding wires FLa and the second protruding wires FLb and the signal cable 132 may not be exposed to the outside of each of the first cover member 131d and the second cover member 131e, thus preventing breakage of each of the first protruding wires FLa and the second protruding wires FLb caused by stress such as movement or bending of the signal cable 132.

[0530] As described above, based on the integrated structure between the first electrode portion 131b and the second electrode portion 131c and the signal cable 132, the vibration device 131 according to another embodiment of the present disclosure does not require the patterning process for forming pad portions and power lines in the first cover member 131d and the second cover member 131e, nor the soldering process performed between the pad portions and the signal cable 132, thus simplifying the structure and manufacturing process. Furthermore, in the vibration device 131 according to another embodiment of the present disclosure, the vibration drive signal can be directly provided to the first electrode portion 131b and the second electrode portion 131c via the first protruding line FLa and the second protruding line FLb protruding from the signal cable 132, thus supplementing the electrical characteristics of each of the first electrode portion 131b and the second electrode portion 131c. Moreover, the vibration device 131 according to another embodiment of the present disclosure includes a sound processing circuit 137 mounted on the signal cable 132, thus simplifying the connection structure between the vibration device 131, the sound processing circuit 137, and the signal cable 132 and the sound data generation circuit. Furthermore, the sound processing circuit 137 can be arranged adjacent to the vibration device 131. Therefore, a filter circuit including an inductor and a capacitor, which is used to prevent electromagnetic interference (EMI) and the like due to the length of the distance between the sound processing circuit 137 and the vibration device 131 of the signal cable 132, can be omitted. However, the embodiments of this disclosure are not limited thereto.

[0531] Additionally, in another embodiment of the vibration device 131 according to this disclosure, the signal cable 132 including protruding wires FLa and FLB can be equivalently applied. Figure 24 and Figure 25 The signal cable 132 is shown.

[0532] Figure 30 A vibration device according to another embodiment of the present disclosure is illustrated. Figure 31 It is along Figure 30 The cross-sectional view taken by line II′ is shown. Figure 28 The example shown is along Figure 30 The cross-sectional view shown is taken from line GG′. Figure 30 and Figure 31 This is an example Figures 1 to 13 A diagram of another embodiment of the vibration device shown in one or more of the diagrams is provided, and illustrations are given by modifying... Figure 23 The embodiment is implemented by the connection structure between the electrode portion and the signal cable shown. Therefore, in the following, other components besides the electrode portion, signal cable, and related elements may be referred to by similar reference numerals, and their repeated descriptions may be omitted or briefly given.

[0533] Reference Figure 30 and Figure 31 According to another embodiment of the present disclosure, the vibration device 131 may include a first vibration generating part 131-1 and a second vibration generating part 131-2, a first signal cable 132-1 and a second signal cable 132-2.

[0534] Each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be electrically separated and disposed while being spaced apart from each other along the first direction X. Each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 may include a piezoelectric vibration portion 131a, a first electrode portion 131b, and a second electrode portion 131c. Each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 can be related to the above-mentioned... Figure 21 and Figure 22 Each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2 of the described vibration device 131 is substantially the same; therefore, similar reference numerals may refer to similar elements and repeated descriptions of them may be omitted.

[0535] The first signal cable 132-1 can be electrically connected to or directly connected to the first electrode portion 131b and the second electrode portion 131c on one side of the vibration device 131, and therefore can be integrated into the first vibration generating portion 131-1. For example, the first signal cable 132-1 may not need to pass through the referenced above. Figure 21 and Figure 22 The power line and pad portion are described, and can be electrically connected to the first electrode portion 131b and the second electrode portion 131c of the first vibration generating portion 131-1.

[0536] The second signal cable 132-2 can be electrically connected to or directly connected to the first electrode portion 131b and the second electrode portion 131c on one side of the vibration device 131, and therefore can be integrated into the second vibration generating portion 131-2. For example, the second signal cable 132-2 may not pass through the referenced above. Figure 21 and Figure 22 The power line and pad portion are described and can be electrically connected to the first electrode portion 131b and the second electrode portion 131c of the second vibration generating portion 131-2.

[0537] Each of the first signal cable 132-1 and the second signal cable 132-2 may include a first protruding wire FLa and a second protruding wire FLb. For example, each of the first protruding wire FLa and the second protruding wire FLb may be referred to as a protruding electrode, an extension wire, an extension electrode, a flexible protruding electrode, a flexible connecting wire, a flexible conductive wire, a finger wire, or a finger electrode, but the embodiments disclosed herein are not limited thereto.

[0538] The first protruding wire FLa (or the first upper protruding wire FLa1) of the first signal cable 132-1 may overlap with at least a portion of the first electrode portion 131b of the first vibration generating portion 131-1, and may be electrically connected to or directly electrically connected to the first electrode portion 131b. The second protruding wire FLb (or the first lower protruding wire FLb1) of the first signal cable 132-1 may overlap with at least a portion of the second electrode portion 131c of the first vibration generating portion 131-1, and may be electrically connected to or directly electrically connected to the second electrode portion 131c. For example, each of the first protruding wire FLa and the second protruding wire FLb of the first signal cable 132-1 may be bent toward the corresponding electrode portion of the first electrode portion 131b and the second electrode portion 131c of the first vibration generating portion 131-1, but the embodiments of this disclosure are not limited thereto.

[0539] The first protruding wire FLa (or the second upper protruding wire FLa2) of the second signal cable 132-2 may overlap with at least a portion of the first electrode portion 131b of the second vibration generating portion 131-2, and may be electrically connected to or directly electrically connected to the first electrode portion 131b. The second protruding wire FLb (or the second lower protruding wire FLb2) of the second signal cable 132-2 may overlap with at least a portion of the second electrode portion 131c of the second vibration generating portion 131-2, and may be electrically connected to or directly electrically connected to the second electrode portion 131c. For example, each of the first protruding wire FLa and the second protruding wire FLb of the second signal cable 132-2 may be bent toward the corresponding electrode portion of the first electrode portion 131b and the second electrode portion 131c of the second vibration generating portion 131-2, but the embodiments of this disclosure are not limited thereto.

[0540] Each of the first signal cable 132-1 and the second signal cable 132-2 according to embodiments of the present disclosure may include a main body portion, a first protruding wire FLa and a second protruding wire FLb, and sound processing circuits 137a and 137b. Each of the first signal cable FLa and the second signal cable FLb may be related to the above-mentioned... Figures 27 to 29 The signal cables 132 described are essentially the same; therefore, similar reference numerals may refer to similar elements and their repeated descriptions may be omitted or given only briefly.

[0541] The sound processing circuit (or first sound processing circuit, first signal generation circuit, or first sound generation circuit) 137a, mounted on or integrated into the first signal cable 132-1, can generate a first vibration drive signal and a second vibration drive signal based on sound data provided from an external sound data generation circuit. The first and second vibration drive signals can be provided to the first electrode portion 131b and the second electrode portion 131c of the first vibration generation portion 131-1 via the first protruding line FLa and the second protruding line FLb. The sound processing circuit 137a mounted on the first signal cable 132-1 may include a decoding unit, an audio amplifier circuit, a storage circuit, a control circuit, and passive components such as resistors. Figure 26 or Figure 28 The components of the described sound processing circuit 137 are basically the same; therefore, similar reference numerals refer to similar components and repeated descriptions of them can be omitted.

[0542] The sound processing circuit (or second sound processing circuit, second signal generation circuit, or second sound generation circuit) 137b, installed on the first signal cable 132-1 or integrated into the second signal cable 132-2, can generate a first vibration drive signal and a second vibration drive signal based on sound data provided from an external sound data generation circuit. The first and second vibration drive signals can be provided to the first electrode portion 131b and the second electrode portion 131c of the second vibration generation portion 131-2 via the first protruding line FLa and the second protruding line FLb. The sound processing circuit 137b installed on the second signal cable 132-2 may include a decoding unit, an audio amplifier circuit, a storage circuit, a control circuit, and passive components such as resistors. The components of the sound processing circuit 137b may be the same as those described above. Figure 26 or Figure 28 The components of the described sound processing circuit 137 are basically the same; therefore, similar reference numerals can refer to similar components and repeated descriptions of them can be omitted.

[0543] According to another embodiment of the present disclosure, the vibration device 131 may further include a first cover member 131d and a second cover member 131e. Except that the first cover member 131d and the second cover member 131e are configured to respectively cover the first vibration generating portion 131-1 and the second vibration generating portion 131-2, and the first and second signal cables 132-1 and 132-2, respectively, the first cover member 131d and the second cover member 131e may be as described above. Figure 21 and Figure 22 or Figures 27 to 29 The first cover member 131d and the second cover member 131e described herein are substantially the same; therefore, similar reference numerals may refer to similar elements and their repeated descriptions may be omitted or briefly given.

[0544] The first cover member 131d may be disposed on the first surface of the vibration device 131. For example, the first cover member 131d may be configured to cover the first electrode portion 131b of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2, as well as the first protruding line FLa of each of the first signal cable 132-1 and the second signal cable 132-2.

[0545] The second cover member 131e may be disposed on the second surface of the vibration device 131. For example, the second cover member 131e may be configured to cover the second electrode portion 131c of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2, as well as the second protruding line FLb of each of the first signal cable 132-1 and the second signal cable 132-2.

[0546] According to embodiments of the present disclosure, the first cover member 131d can be connected or coupled via a first adhesive layer 131f to the first electrode portion 131b of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2, and to the first protruding wire FLa of each of the first signal cables 132-1 and the second signal cables 132-2. Therefore, the first protruding wire (or first finger wire) FLa of each of the first signal cables 132-1 and the second signal cables 132-2 can be disposed between the first cover member 131d and the first electrode portion 131b of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2, and can be integrated with the vibration device 131.

[0547] According to embodiments of the present disclosure, the second cover member 131e can be connected or coupled via a second adhesive layer 131g to the second electrode portion 131c of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2, and to the second protruding wire FLb of each of the first signal cable 132-1 and the second signal cable 132-2. Therefore, the second protruding wire (or second finger wire) FLb of each of the first signal cable 132-1 and the second signal cable 132-2 can be disposed between the second cover member 131e and the second electrode portion 131c of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2, and can be integrated with the vibration device 131.

[0548] A first adhesive layer 131f may be disposed between the first vibration generating portion 131-1 and the second vibration generating portion 131-2, and on a first surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. A second adhesive layer 131g may be disposed between the first vibration generating portion 131-1 and the second vibration generating portion 131-2, and on a second surface of each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. For example, the first adhesive layer 131f and the second adhesive layer 131g may be constructed between the first cover member 131d and the second cover member 131e to completely surround each of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. The first adhesive layer 131f and the second adhesive layer 131g may be connected or joined to each other between the first vibration generating portion 131-1 and the second vibration generating portion 131-2.

[0549] Alternatively, as referred above Figures 27 to 29 As described, at least a portion of each of the first signal cable 132-1 and the second signal cable 132-2 can be disposed or inserted between the first cover member 131d and the second cover member 131e, thereby preventing the first protruding wire FLa and the second protruding wire FLb from being broken by stresses such as movement or bending of the signal cable 132.

[0550] As mentioned above, in accordance with the above references Figure 21 and Figure 22 Similar to the described vibration device 131, the vibration device 131 according to another embodiment of this disclosure can be driven as a large-area vibrator based on the individual vibrations of the first vibration generating portion 131-1 and the second vibration generating portion 131-2. Furthermore, in the vibration device 131 according to another embodiment of this disclosure, as described above... Figures 27 to 29Similar to the described vibration device 131, it can simplify the structure and manufacturing process, supplement the electrical characteristics of each of the first electrode portion 131b and the second electrode portion 131c, simplify the connection structure between the first vibration generating portion 131-1 and the second vibration generating portion 131-2, the first sound processing circuit 137a and the second sound processing circuit 137b, and the first signal cable 132-1 and the second signal cable 132-2 and the sound data generating circuit, and can omit the filter circuit including inductors and capacitors for preventing EMI, etc.

[0551] Alternatively, in another embodiment of the vibration device 131 according to this disclosure, such as Figure 30 As shown by the dashed lines, the first signal cable 132-1 and the second signal cable 132-2 can be modified or constructed as a single signal cable 132. According to an embodiment of this disclosure, a single signal cable 132 can be simply constructed as a single signal cable without altering the structure of each of the first signal cable 132-1 and the second signal cable 132-2, and therefore can have a width greater than the sum of the widths of the first signal cable 132-1 and the second signal cable 132-2. According to another embodiment of this disclosure, a signal cable 132 can be constructed such that a peripheral portion of the main body on which the first sound processing circuit 137a and the second sound processing circuit 137b are mounted has a relatively wide width, and the other portions of the main body, excluding the peripheral portion, have the same width as either the first signal cable 132-1 or the second signal cable 132-2.

[0552] Additionally, in another embodiment of the vibration device 131 according to this disclosure, the first signal cable 132-1 and the second signal cable 132-2, including protruding wires FLa and FLB, can be equivalently applied. Figure 24 and Figure 25 The signal cable 132 of the vibration device 230 shown.

[0553] Figure 32 A vibration device according to another embodiment of the present disclosure is illustrated. Figure 32 Examples are shown in Figure 30 and Figure 31 The vibration device shown is provided in an embodiment with four vibration generating parts. Therefore, in the following text, other elements besides the four vibration generating parts and related components are referred to by similar reference numerals, and their repeated descriptions may be omitted or briefly given. Figure 28 The example shown is along Figure 32 The cross-sectional surface cut by line GG′ shown in the figure, and Figure 31 The example shown is along Figure 32 The cross-sectional surface cut by line II′ shown in the figure.

[0554] Combination Figure 28 and Figure 31 For reference Figure 32 According to another embodiment of the present disclosure, the vibration device 131 may include a plurality of vibration generating parts 131-1 to 131-4, a first signal cable 132-1 and a second signal cable 132-2.

[0555] Each of the plurality of vibration generating portions 131-1 to 131-4 can be electrically disconnected along the first direction X and the second direction Y and spaced apart from each other. For example, the plurality of vibration generating portions 131-1 to 131-4 can be arranged or tiled in an i×j configuration on the same plane. Each of the plurality of vibration generating portions 131-1 to 131-4 may include a piezoelectric vibration portion 131a, a first electrode portion 131b, and a second electrode portion 131c. Each of the plurality of vibration generating portions 131-1 to 131-4 can be related to the above-mentioned references. Figure 23 Each of the plurality of vibration generating portions 131-1 to 131-4 of the described vibration device 131 is substantially identical; therefore, similar reference numerals refer to similar elements, and repeated descriptions of them may be omitted. Hereinafter, examples of the vibration device 131 including the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 will be described.

[0556] The first signal cable 132-1 can be electrically connected to, or directly electrically connected to, the first electrode portion 131b and the second electrode portion 131c of each of the first vibration generating portion 131-1 and the third vibration generating portion 131-3 on one side of the vibration device 131, and therefore can be integrated into the first vibration generating portion 131-1 and the third vibration generating portion 131-3. For example, the first signal cable 132-1 may not need to pass through the above reference. Figure 23 The power line and pad section are described, and can be electrically connected to the first electrode portion 131b and the second electrode portion 131c of each of the first vibration generating portion 131-1 and the third vibration generating portion 131-3.

[0557] The second signal cable 132-2 can be electrically connected or directly electrically connected to the first electrode portion 131b and the second electrode portion 131c of each of the second vibration generating portion 131-2 and the fourth vibration generating portion 131-4 on one side of the vibration device 131, and therefore can be integrated into the second vibration generating portion 131-2 and the fourth vibration generating portion 131-4. For example, the second signal cable 132-2 may not pass through the above reference. Figure 23The power line and pad portion are described, and can be electrically connected to the first electrode portion 131b and the second electrode portion 131c of each of the second vibration generating portion 131-2 and the fourth vibration generating portion 131-4.

[0558] Each of the first signal cable 132-1 and the second signal cable 132-2 according to embodiments of the present disclosure may include a first protruding wire FLa and a second protruding wire FLb. For example, each of the first protruding wire FLa and the second protruding wire FLb may be referred to as a protruding electrode, an extension wire, an extension electrode, a flexible protruding electrode, a flexible connecting wire, a flexible conductive wire, a finger wire, or a finger electrode, but embodiments of the present disclosure are not limited thereto.

[0559] The first protruding wire FLa (or the first upper protruding wire FLa1) of the first signal cable 132-1 may overlap with at least a portion of the first electrode portion 131b of each of the first vibration generating portion 131-1 and the third vibration generating portion 131-3, and may be electrically connected to or directly electrically connected to the first electrode portion 131b. The second protruding wire FLb (or the first lower protruding wire FLb1) of the first signal cable 132-1 may overlap with at least a portion of the second electrode portion 131c of each of the first vibration generating portion 131-1 and the third vibration generating portion 131-3, and may be electrically connected to or directly electrically connected to the second electrode portion 131c. For example, each of the first protruding wire FLa and the second protruding wire FLb of the first signal cable 132-1 may be bent toward the corresponding electrode portion of the first electrode portion 131b and the second electrode portion 131c of each of the first vibration generating portion 131-1 and the third vibration generating portion 131-3, but the embodiments of this disclosure are not limited thereto.

[0560] The first protruding wire FLa (or the second upper protruding wire FLa2) of the second signal cable 132-2 may overlap with at least a portion of the first electrode portion 131b of each of the second vibration generating portions 131-2 and the fourth vibration generating portions 131-4, and may be electrically connected to or directly electrically connected to the first electrode portion 131b. The second protruding wire FLb (or the second lower protruding wire FLb2) of the second signal cable 132-2 may overlap with at least a portion of the second electrode portion 131c of each of the second vibration generating portions 131-2 and the fourth vibration generating portions 131-4, and may be electrically connected to or directly electrically connected to the second electrode portion 131c. For example, each of the first protruding wire FLa and the second protruding wire FLb of the second signal cable 132-2 may be bent toward the corresponding electrode portion of the first electrode portion 131b and the second electrode portion 131c of each of the second vibration generating portions 131-2 and the fourth vibration generating portions 131-4, but the embodiments of this disclosure are not limited thereto.

[0561] Each of the first signal cable 132-1 and the second signal cable 132-2 according to embodiments of the present disclosure may include a main body portion, a first protruding wire FLa and a second protruding wire FLb, and sound processing circuits 137a and 137b. Each of the first signal cable 132-1 and the second signal cable 132-2 may be related to the above-mentioned... Figures 27 to 29 The signal cables 132 described are essentially the same; therefore, similar reference numerals may refer to similar elements and their repeated descriptions may be omitted or given only briefly.

[0562] The sound processing circuit (or first sound processing circuit) 137a, mounted on or integrated into the first signal cable 132-1, can generate a first vibration drive signal and a second vibration drive signal based on sound data provided from an external sound data generation circuit. The first and second vibration drive signals can be provided to the first electrode portion 131b and the second electrode portion 131c of each of the first vibration generation portion 131-1 and the third vibration generation portion 131-3 via the first protruding line FLa and the second protruding line FLb. The sound processing circuit 137a mounted on the first signal cable 132-1 may include a decoding unit, an audio amplifier circuit, a storage circuit, a control circuit, and passive components such as resistors. The components of the sound processing circuit 137a may be the same as those described above. Figures 26 to 28 The components of the described sound processing circuit 137 are basically the same; therefore, similar reference numerals can refer to similar components and repeated descriptions of them can be omitted.

[0563] The sound processing circuit (or second sound processing circuit) 137b, mounted on the first signal cable 132-1 or integrated into the second signal cable 132-2, can generate a first vibration drive signal and a second vibration drive signal based on sound data provided from an external sound data generation circuit. The first and second vibration drive signals can be provided to the first electrode portion 131b and the second electrode portion 131c of each of the second and fourth vibration generation portions 131-2 and 131-4 via the first protruding line FLa and the second protruding line FLb. The sound processing circuit 137b mounted on the second signal cable 132-2 may include a decoding unit, an audio amplifier circuit, a storage circuit, a control circuit, and passive components such as resistors. The components of the sound processing circuit 137b can be the same as those described above. Figures 26 to 28 The components of the described sound processing circuit 137 are basically the same; therefore, similar reference numerals can refer to similar components, and repeated descriptions of them can be omitted.

[0564] According to another embodiment of the present disclosure, the vibration device 131 may further include a first cover member 131d and a second cover member 131e. Except that the first cover member 131d and the second cover member 131e are configured to respectively cover the first protruding wire FLa and the second protruding wire FLb of each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 and the first signal cable 132-1 and the second signal cable 132-2, the first cover member 131d and the second cover member 131e may be as described above. Figure 23 or Figures 27 to 28 The first cover member 131d and the second cover member 131e are substantially the same, and thus, similar reference numerals may refer to similar elements, and their repeated descriptions may be omitted or given briefly.

[0565] The first cover member 131d may be disposed on the first surface of the vibration device 131. For example, the first cover member 131d may be configured to cover the first electrode portion 131b of each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 and the first protruding line FLa of each of the first signal cable 132-1 and the second signal cable 132-2.

[0566] The second cover member 131e may be disposed on the second surface of the vibration device 131. For example, the second cover member 131e may be configured to cover the second electrode portion 131c of each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 and the second protruding line FLb of each of the first signal cable 132-1 and the second signal cable 132-2.

[0567] According to an embodiment of the present disclosure, the first cover member 131d can be connected or coupled via a first adhesive layer 131f to the first electrode portion 131b of each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 and the first protruding wire FLa of each of the first signal cables 132-1 and the second signal cables 132-2. Therefore, the first protruding wire (or first finger wire) FLa of each of the first signal cables 132-1 and the second signal cables 132-2 can be disposed between the first electrode portion 131b of each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 and the first cover member 131d, and can be integrated with the vibration device 131.

[0568] According to an embodiment of the present disclosure, the second cover member 131e can be connected or coupled via a second adhesive layer 131g to the second electrode portion 131c of each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4, and to the second protruding wire FLb of each of the first signal cable 132-1 and the second signal cable 132-2. Therefore, the second protruding wire (or second finger wire) FLb of each of the first signal cable 132-1 and the second signal cable 132-2 can be disposed between the second electrode portion 131c of each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4 and the second cover member 131e, and can be integrated with the vibration device 131.

[0569] A first adhesive layer 131f may be disposed between the first vibration generating portions 131-1 and the fourth vibration generating portions 131-4 and on the first surface of each of the first vibration generating portions 131-1 and the fourth vibration generating portions 131-4. A second adhesive layer 131g may be disposed between the first vibration generating portions 131-1 and the fourth vibration generating portions 131-4 and on the second surface of each of the first vibration generating portions 131-1 and the fourth vibration generating portions 131-4. For example, the first adhesive layer 131f and the second adhesive layer 131g may be constructed between the first cover member 131d and the second cover member 131e to completely surround each of the first vibration generating portions 131-1 to the fourth vibration generating portions 131-4. The first adhesive layer 131f and the second adhesive layer 131g may be connected or joined to each other between the first vibration generating portions 131-1 and the fourth vibration generating portions 131-4.

[0570] Alternatively, as referred above Figures 27 to 29 As described, at least a portion of each of the first signal cable 132-1 and the second signal cable 132-2 can be disposed or inserted between the first cover member 131d and the second cover member 131e, thereby preventing the first protruding wire FLa and the second protruding wire FLb from being broken by stresses such as movement or bending of the signal cable 132.

[0571] As mentioned above, in accordance with the above references Figure 23 Similar to the described vibration device 131, the vibration device 131 according to another embodiment of this disclosure can be driven as a large-area vibrating body based on the individual vibrations of the first vibration generating portion 131-1 to the fourth vibration generating portion 131-4. Furthermore, as described above... Figures 27 to 29Similar to the described vibration device 131, in another embodiment of the vibration device 131 according to this disclosure, the structure and manufacturing process can be simplified, the electrical characteristics of each of the first electrode portion 131b and the second electrode portion 131c can be supplemented, the...

Claims

1. A sound device, the sound device comprising: Vibrating components; A housing, which includes a receiving space and is configured to cover the rear surface of the vibrating member; A vibration device, comprising one or more vibration devices configured to vibrate the vibrating member; A first connecting member and a second connecting member are arranged in parallel between the vibrating member and the housing to have different hardnesses; as well as The pattern portion is formed on the surface of the base plate portion. The vibrating component includes a non-planar structure. The vibration device includes a first to an nth vibration device connected to the rear surface of the vibration member, where n is a natural number of 2 or greater. The housing includes spatial separation portions that divide the accommodating space into first spaces to nth spaces corresponding to the first to the nth vibration devices, respectively. The spatial separation section is spaced apart from the vibration device. The housing includes a base plate portion that covers the rear surface of the vibrating device and the vibrating component. The spatial separation portion is connected between the vibrating member and the base plate portion, thereby providing an enclosed space surrounding the vibrating device. The base plate portion is configured to be spaced apart from the rear surface of the vibrating member and the vibrating device.

2. The sound device according to claim 1, wherein, The front surface of the vibrating member, which is opposite to the rear surface, has the non-planar structure.

3. The sound device according to claim 2, wherein, The non-planar structure includes curved surface structure or inclined surface structure.

4. The sound device according to claim 1, wherein, The vibrating component includes any of the following shapes: circular, elliptical, and polygonal with three or more vertices.

5. The sound device according to claim 1, wherein, The vibrating member has the non-planar structure through one or more recessed portions and one or more protruding portions.

6. The sound device according to claim 5, wherein, Each recessed portion is constructed between adjacent protruding portions and includes the central portion of the vibrating member.

7. The sound device according to claim 1, wherein, The interval between the first vibration device and the nth vibration device is 3mm to 5mm, wherein the interval between the first vibration device and the nth vibration device is the interval between adjacent vibration devices among the first vibration device and the nth vibration device.

8. The sound device according to claim 6, wherein, In a first direction relative to the horizontal direction, the distance between the end of the vibrating member and each of the first to nth vibrating devices is less than the length of a vibrating device and greater than the distance between adjacent vibrating devices.

9. The sound device according to claim 6, wherein, The vibrating component includes a first region to an nth region connected to each of the first to nth vibrating devices, and The pitch frequency band of the sound output from one of the regions from the first region to the nth region is different from the pitch frequency band of the sound output from the other regions from the first region to the nth region.

10. The sound device according to claim 1, wherein, The vibration device includes a first to an nth vibration device connected to the rear surface of the vibration member, where n is a natural number greater than or equal to 2. Wherein, the first vibration device to the nth vibration device are arranged at certain intervals along a first horizontal direction, and Wherein, relative to the first direction, the interval between the end of the vibrating member and each of the first to the nth vibrating devices is less than the length of one vibrating device.

11. A sound device, the sound device comprising: A housing, which includes a receiving space; A vibrating member configured to cover the receiving space of the housing, the vibrating member comprising a first region to an nth region, where n is a natural number greater than 3; as well as A vibration device comprising one or more first vibration devices to nth vibration devices configured to vibrate each of the first to nth regions of the vibrating member; A first connecting member and a second connecting member are arranged in parallel between the vibrating member and the housing to have different hardnesses; as well as The pattern portion is formed on the surface of the base plate portion. The housing includes spatial separation portions that divide the accommodating space into first spaces to nth spaces corresponding to the first region to the nth region, respectively. The spatial separation section is spaced apart from the vibration device. The housing includes a base plate portion that covers the rear surface of the vibrating device and the vibrating component. The spatial separation portion is connected between the vibrating member and the base plate portion, thereby providing an enclosed space surrounding the vibrating device. The base plate portion is configured to be spaced apart from the rear surface of the vibrating member and the vibrating device.

12. The sound device according to claim 11, wherein, The pitch frequency band of the sound output from one of the regions from the first region to the nth region of the vibrating member is different from the pitch frequency band of the sound output from the other regions from the first region to the nth region of the vibrating member.

13. The sound device according to claim 11, wherein, The vibrating component includes a first region to a third region arranged along a first horizontal direction, and The spatial separation portion includes: A first partition wall is disposed between the first space and the second space; and A second partition wall is disposed between the second space and the third space.

14. The sound device according to claim 11, wherein, The housing also includes: A first side portion, which is connected to a first peripheral portion of the base plate portion in a first direction parallel to the horizontal direction; The second side portion is connected to the second peripheral portion of the base plate portion that is parallel to the first peripheral portion of the base plate portion; The third side portion, which is connected to the third peripheral portion of the base plate portion parallel to the second direction intersecting the first direction; and The fourth side portion is connected to the fourth peripheral portion of the third peripheral portion, which is parallel to the base plate portion, and... The spatial separation portion includes: A first partition wall connects the first side portion and the second side portion to separate the first space and the second space; and A second partition wall connects the first side portion and the second side portion to separate the second space and the third space.

15. The sound device according to claim 14, wherein, The vibrating component includes a first region, a second region, and a third region arranged along the first direction. The one or more first vibration devices are configured to cause the first region of the vibration member to vibrate. Wherein, the one or more second vibration devices are configured to cause the second region of the vibration member to vibrate, and The one or more third vibration devices are configured to cause the third region of the vibration member to vibrate.

16. The sound device according to claim 15, wherein, The housing includes: A first sound separation section is disposed in the first space between the one or more first vibration devices and the first partition wall; and The second sound separation section is disposed in the third space between the one or more third vibration devices and the second partition wall.

17. The sound device according to claim 16, wherein, Each of the first sound separation portion and the second sound separation portion includes: One or more ribs, said one or more ribs protruding along the second direction from the inner surface of one or more of the first side portion and the second side portion; and One or more sound separation components are disposed between the one or more ribs and the rear surface of the vibrating component.

18. The sound device according to claim 16, wherein, Each of the first sound separation portion and the second sound separation portion includes: Multiple ribs, the multiple ribs protruding from the inner surface of one or more of the first side portion and the second side portion, having different lengths along the second direction; and A plurality of sound separation components are disposed between each of the plurality of ribs and the rear surface of the vibrating component.

19. The sound device according to claim 18, wherein, The length of each of the plurality of ribs varies toward the spatial separation portion.

20. The sound device according to claim 18, wherein, The length of each of the plurality of ribs increases toward the spatial separation portion.

21. The sound device according to claim 15, wherein, The housing includes: A first sound limiting portion, wherein the first sound limiting portion is disposed near the one or more first vibration devices; and A second sound limiting portion is disposed near the one or more third vibration devices.

22. The sound device according to claim 21, wherein, The first sound limiting part includes: One or more first protruding portions, said one or more first protruding portions protruding toward the first space from the inner surface of one or more of the first side portions surrounding the first space to the third side portions and the first partition wall; and One or more first sound-limiting members, said one or more first sound-limiting members being disposed between said one or more first protrusions and the rear surface of said vibrating member, and The second sound limiting part includes: One or more second protrusions, said one or more second protrusions protruding toward the third space from the inner surface of one or more of the second partition wall, the first side portion, the second side portion, and the fourth side portion surrounding the third space; and One or more second sound limiting members, said one or more second sound limiting members being disposed between said one or more second protrusions and the rear surface of said vibrating member.

23. The sound device according to claim 22, wherein, The one or more first protrusions face the inner surface of one or more of the first side portions and the second side portions between the one or more first vibration devices and the first partition wall, and The one or more second protruding portions face the inner surface of one or more of the first side portions and the second side portions between the one or more third vibration devices and the second partition wall.

24. The sound device according to claim 22, wherein, The one or more first protruding portions face the central portion of the one or more first vibrating devices from the inner surface of one or more of the first partition wall and the third side portion, and The one or more second protruding portions face the central portion of the one or more third vibration devices from the inner surface of one or more of the second partition wall and the fourth side portion.

25. The sound device according to claim 22, wherein, The space in which one or more first protrusions on the third side portion and one or more second protrusions on the fourth side portion are disposed outputs the frequency of the high-pitched audio band.

26. The sound device according to claim 22, wherein, The space in which one or more first protrusions at the first side portion and one or more second protrusions at the second side portion are disposed provides the frequency of the output bass tone audio band.

27. The sound device according to claim 11, wherein, The first region of the vibrating member includes a first peripheral region of the vibrating member, and the nth region of the vibrating member includes a second peripheral region of the vibrating member. The pitch frequency band of the sound output from each of the first region to the nth region of the vibrating member increases from the central region of the vibrating member toward the first region and the nth region.

28. The sound device according to claim 11, wherein, The first region of the vibrating member includes a first peripheral region of the vibrating member, and the nth region of the vibrating member includes a second peripheral region of the vibrating member. The size of each of the one or more first vibration devices to the nth vibration device decreases from the central region of the vibration member toward the first region and the nth region.

29. The sound device according to claim 11, wherein, The one or more first vibration devices cause the first region to vibrate to generate ultrasonic waves. Wherein, the one or more nth vibration devices cause the nth region to vibrate to generate multiple ultrasonic waves with different frequencies, and Among them, any one of the plurality of ultrasonic waves output from the nth region has the same frequency as the ultrasonic wave output from the first region, and another of the plurality of ultrasonic waves output from the nth region has a higher frequency than the ultrasonic wave output from the first region.

30. The sound device according to claim 11, wherein, The one or more first vibration devices disposed in the first region are configured to emit and receive ultrasonic waves, and The one or more nth vibration devices disposed in the nth region are configured to emit and receive ultrasonic waves.

31. The sound device according to claim 11, further comprising: A support frame, including a rotating shaft configured to rotatably support the housing; An electric motor, which is mounted on the bracket, is used to rotate the rotating shaft. A sensing unit, disposed at the housing or the bracket, is used to sense one or more of the position and movement of the receiver, thereby generating sensing information; as well as A motor driver that drives the motor based on sensing information provided from the sensing unit.

32. The sound device according to claim 31, wherein, The sensing unit includes: An ultrasonic sensor that emits and receives ultrasonic waves; and A sensing circuit that generates the sensing information based on ultrasonic waves received from the ultrasonic sensor.

33. The sound device according to any one of claims 1 to 32, wherein, The first connecting member is surrounded by the second connecting member and has a lower hardness than the second connecting member.

34. The sound device according to any one of claims 1 to 32, wherein, The first connecting member is surrounded by the second connecting member and has a higher hardness than the second connecting member.

35. The sound device according to any one of claims 1 to 32, wherein, The vibration device includes: A piezoelectric vibrating portion, comprising a plurality of piezoelectric portions and an extension portion connected between the plurality of piezoelectric portions; 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 the second surface of the piezoelectric vibration portion opposite to the first surface.

36. The sound device according to any one of claims 1 to 32, wherein, The vibration device includes two or more vibration-generating parts arranged along one or more directions, namely a first direction and a second direction intersecting the first direction, and Each of the two or more vibration generating parts includes: A piezoelectric vibrating portion, comprising a plurality of piezoelectric portions and an extension portion connected between the plurality of piezoelectric portions; 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 the second surface of the piezoelectric vibration portion opposite to the first surface.

37. The sound device according to claim 36, wherein, The vibration device includes: One or more signal cables, the one or more signal cables being electrically connected to each of the first electrode portion and the second electrode portion; and A signal generation circuit, which is mounted on one or more signal cables.

38. The sound device according to claim 37, wherein, The vibration device also includes: A first cover member, the first cover member covering the first electrode portion; and A second cover member covers the second electrode portion; and The one or more signal cables include: A first protruding line, the first protruding line being disposed between the first cover member and the first electrode portion and electrically connected to the first electrode portion; and A second protruding line is disposed between the second cover member and the second electrode portion and is electrically connected to the second electrode portion.

39. The sound device according to claim 38, wherein, A portion of each of the one or more signal cables is housed between the first cover member and the second cover member.

40. The sound device according to any one of claims 1 to 32, wherein, The vibrating component includes one or more materials selected from metal, plastic, fiber, leather, wood, cloth, paper, and glass.

41. The sound device according to any one of claims 1 to 32, wherein, The vibrating component includes any 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 lighting panel, a sign panel, glass, and a mirror.

42. A sound system comprising: A display device configured to display an image; One or more first speaker devices, the one or more first speaker devices being rotatably disposed near a first side of the display device, each of the one or more first speaker devices including a sound output device, the sound output device including the sound device according to any one of claims 1 to 32; as well as One or more second speaker devices, rotatably disposed near a second side of the display device, each of the one or more second speaker devices including a sound output device. The display device includes a display panel and a display driving circuit. The display driving circuit displays different images in a first area and a second area of ​​the display panel and provides a screen splitting mode signal to each of the one or more first speaker devices and the one or more second speaker devices. In response to the screen splitting mode signal, the one or more first speaker devices rotate the sound output device toward a first listening direction near a first area of ​​the display panel, and In response to the screen splitting mode signal, the one or more second speaker devices rotate the output device toward a second listening direction near the second area of ​​the display panel.

43. The sound system according to claim 42, wherein, Each of the one or more first loudspeaker devices and the one or more second loudspeaker devices includes: A bracket, including a rotating shaft configured to rotatably support the sound output device; An electric motor, which is mounted on the bracket, is used to rotate the rotating shaft. A sensing unit, disposed at the sound output device or the bracket, senses one or more of the position and movement of the corresponding listener, thereby generating sensing information; and A motor driver that responds to the screen splitting mode signal and drives the motor based on sensing information provided from the sensing unit.

44. The sound system according to claim 43, wherein, The sensing unit includes: An ultrasonic sensor, configured to emit and receive ultrasonic waves; and A sensing circuit configured to generate the sensing information based on ultrasonic waves received from the ultrasonic sensor.

45. The sound system according to claim 43, in, The rotating shaft can rotatably support the housing of the sound output device, and The sensing element is disposed on the housing or the bracket.

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