Sound apparatus and vehicle apparatus including the same

Abstract

The invention provides a sound apparatus and a vehicle apparatus including the same. The sound device includes a first sound generating portion, a second sound generating portion spaced apart from the first sound generating portion, a coupling member partially disposed between the first sound generating portion and the second sound generating portion, and a connecting member disposed along a rear peripheral portion of the first sound generating portion.

Description

Technical Field

[0001] The present disclosure relates to a sound device and a vehicle device including the sound device, and more particularly, for example but not limited to, to a sound device capable of enhancing sound characteristics and / or sound pressure level characteristics and a vehicle device including the sound device. Background Art

[0002] The vehicle includes an audio device that outputs sound based on an audio signal output from a multimedia device such as a car audio device. For example, the audio device applied to the vehicle may include a front speaker and a rear speaker, which are configured as a coil type.

[0003] However, due to the limitations of coil-type devices, the vehicle's audio equipment may be limited in outputting multi-channel realistic sound or stereo sound through the front and rear speakers. Furthermore, in vehicle audio equipment, stereo sound can be output by increasing the number of speakers. However, due to the size limitations of the speakers based on the coil-type devices and the space in the vehicle, there are limitations on increasing the number of speakers, making it impossible to provide realistic sound or stereo sound using the coil-type devices.

[0004] The descriptions provided in the discussion of related art section should not be considered as prior art simply because they are mentioned in or associated with this section. The discussion of related art section may include information describing one or more aspects of the subject technology, and the descriptions in this section do not limit the present disclosure. Summary of the Invention

[0005] The inventors of the present disclosure have recognized the problems and shortcomings of the related art and have conducted extensive research and experiments to enhance the sound characteristics and / or sound pressure level characteristics of a sound device for a vehicle. Based on the extensive research and experiments, the inventors have invented a sound device that can enhance the sound characteristics and / or sound pressure level characteristics, and a vehicle device including the sound device.

[0006] One aspect of the present disclosure is directed to providing a sound device that can enhance sound characteristics and / or sound pressure level characteristics and a vehicle device including the sound device.

[0007] An aspect of the present disclosure is directed to providing a sound device that can enhance sound characteristics and / or sound pressure level characteristics in a tonal vocal range including a low-pitched vocal range and a middle-high-pitched vocal range, and a vehicle device including the same.

[0008] One aspect of the present disclosure is directed to providing a sound device that can expand a sound reproduction band and a vehicle device including the sound device.

[0009] The objectives of the present disclosure are not limited to the above-mentioned objectives. Additional features, advantages, and aspects will be set forth in the following description and, in part, will be apparent from the description or may be learned by practicing the inventive concepts provided herein. Other features, advantages, and aspects of the present disclosure may be realized and obtained by the structures particularly pointed out in the written description or derivable therefrom, as well as in the claims herein and the accompanying drawings.

[0010] To achieve these and other advantages and aspects of the present disclosure, as embodied and broadly described herein, in one or more aspects, a sound device includes a first sound generating part, a second sound generating part spaced apart from the first sound generating part, a connecting member partially disposed between the first sound generating part and the second sound generating part, and a connecting member disposed along a rear peripheral portion of the first sound generating part.

[0011] In one or more aspects, a vehicle device includes an interior material exposed to an interior space, and at least one or more sound generating devices connected to the interior material and configured to output sound into the interior space. The at least one or more sound generating devices include a first sound generating portion, a second sound generating portion spaced apart from the first sound generating portion, a coupling member partially disposed between the first sound generating portion and the second sound generating portion, and a connecting member disposed along a rear periphery of the first sound generating portion. The interior material is connected to the connecting member of the sound device.

[0012] Details of other exemplary embodiments will be included in the detailed description of the disclosure and the accompanying drawings.

[0013] The sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure can enhance sound characteristics and / or sound pressure level characteristics.

[0014] The sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure can enhance sound characteristics and / or sound pressure level characteristics in a tonal vocal range of sound including a low-pitched vocal range and a middle-high-pitched vocal range.

[0015] According to the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, the sound reproduction band can be expanded.

[0016] According to the sound device and the vehicle device including the sound device according to one or more embodiments of the present disclosure, the signal supply member and the vibration generating portion may be configured as one part (or one component), thereby achieving a single material effect.

[0017] Other systems, methods, features, and advantages will be or will become apparent to one skilled in the art upon examination of the following drawings and detailed description. All such additional systems, methods, features, and advantages are intended to be included within this specification, be within the scope of this disclosure, and be protected by the appended claims. Nothing in this section should be construed as limiting these claims. Additional aspects and advantages are discussed below in conjunction with aspects of this disclosure.

[0018] It is to be understood that both the foregoing description and the following description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure as claimed.

[0019] Note 1. A sound device, comprising:

[0020] a first sound generating unit;

[0021] a second sound generating portion spaced apart from the first sound generating portion;

[0022] a coupling member partially disposed between the first sound generating portion and the second sound generating portion; and

[0023] A connecting member is provided along a rear peripheral portion of the first sound generating portion.

[0024] Supplementary note 2. The sound device according to Supplementary note 1, further comprising an air gap partially provided between a peripheral portion of the second sound generating part and the first sound generating part.

[0025] Supplementary note 3. The sound device according to Supplementary note 2, wherein the air gap is located in at least a portion of a region between a peripheral portion of the second sound generating portion adjacent to a long side and the first sound generating portion.

[0026] Note 4. The sound device according to Note 1, wherein the connecting member is arranged between the peripheral portion adjacent to the short side of the second sound generating part and the first sound generating part, and is not arranged between the peripheral portion adjacent to the long side of the second sound generating part and the first sound generating part.

[0027] Note 5. The sound equipment described in Note 1,

[0028] Wherein, the first sound generating unit includes:

[0029] a first vibration member; and

[0030] a first vibration device connected to the first vibration member and configured to vibrate the first vibration member,

[0031] Wherein, the second sound generating unit includes:

[0032] a second vibration member; and

[0033] a second vibration device connected to the second vibration member and configured to vibrate the second vibration member, and

[0034] Wherein, the coupling member is partially disposed between the first vibration member and the second vibration member.

[0035] Note 6. The sound device according to Note 5, wherein the connecting member is provided between a peripheral portion of the second vibration member adjacent to the short side and the first vibration member, and is not provided between a peripheral portion of the second vibration member adjacent to the long side and the first vibration member.

[0036] Supplement 7. The sound device according to Supplement 5, wherein the connecting member comprises:

[0037] a first coupling member located between a peripheral portion of the second vibration member adjacent to the first short side and the first vibration member; and

[0038] A second coupling member is located between a peripheral portion of the second vibration member adjacent to the second short side and the first vibration member.

[0039] Supplementary note 8. The sound device according to Supplementary note 5, further comprising:

[0040] a first air gap between a peripheral portion of the second vibration member adjacent to the first long side and the first vibration member; and

[0041] A second air gap is located between a peripheral portion of the second vibration member adjacent to the second long side and the first vibration member.

[0042] Note 9. The sound equipment described in Note 5,

[0043] wherein the size of the first vibration component is larger than that of the second vibration component, and

[0044] Wherein, the length direction of the long side of the first vibration device intersects with the length direction of the long side of the second vibration device.

[0045] Note 10. The sound equipment described in Note 5,

[0046] wherein each of the first vibration member and the second vibration member includes a first surface and a second surface opposite to the first surface,

[0047] wherein the first vibration device comprises one or more vibration generators connected to one or more of the first surface and the second surface of the first vibration member, and

[0048] Wherein, the second vibration device includes one or more vibration generators connected to one or more of the first surface and the second surface of the second vibration member.

[0049] Note 11. The sound equipment described in Note 10,

[0050] wherein the one or more vibration generators of each of the first vibration device and the second vibration device include:

[0051] a vibrating portion comprising a piezoelectric material;

[0052] a first electrode portion located on a first surface of the vibration portion; and

[0053] A second electrode portion is located on a second surface of the vibration portion that is different from the first surface.

[0054] Supplement 12. The sound device according to Supplement 11, wherein the vibration unit comprises:

[0055] a plurality of inorganic material portions comprising the piezoelectric material; and

[0056] An organic material portion is located between the plurality of inorganic material portions.

[0057] Supplement 13. The sound device according to Supplement 11, wherein the one or more vibration generators of each of the first vibration device and the second vibration device further include:

[0058] a first cover member located at the first electrode portion; and

[0059] A second cover member is positioned at the second electrode portion.

[0060] Note 14. The sound device according to Note 13, wherein the one or more vibration generators of each of the first vibration device and the second vibration device further include an intermediate member between the first cover member and the second cover member, and the intermediate member is an adhesive member or a connecting member.

[0061] Note 15. The sound equipment described in Note 13,

[0062] wherein the one or more vibration generators of each of the first vibration device and the second vibration device further include a signal supply member electrically connected to the first electrode portion and the second electrode portion, and

[0063] wherein a portion of the signal supply member is accommodated between the first cover member and the second cover member.

[0064] Note 16. The sound equipment described in Note 5,

[0065] wherein each of the first vibration member and the second vibration member includes a first surface and a second surface opposite to the first surface,

[0066] wherein the first vibration device includes a plurality of vibrators stacked and connected to one or more of the first surface and the second surface of the first vibration member, and

[0067] wherein the second vibration device includes a plurality of vibrators stacked and connected to one or more of the first surface and the second surface of the second vibration member.

[0068] Note 17. The sound equipment described in Note 5,

[0069] wherein the first vibration device includes a first vibration generator and a second vibration generator overlapping each other with the first vibration member therebetween, and

[0070] The second vibration device includes a third vibration generator and a fourth vibration generator overlapping each other with the second vibration member therebetween.

[0071] Note 18. The sound equipment described in Note 17,

[0072] wherein the size of the first vibration component is larger than that of the second vibration component, and

[0073] The length direction of the long side of each of the first vibration generator and the second vibration generator intersects with the length direction of the long side of each of the third vibration generator and the fourth vibration generator.

[0074] Note 19. The sound device according to Note 5, wherein one or more of the first vibration member and the second vibration member includes a metal material, or includes one or more materials selected from the group consisting of wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather.

[0075] Supplementary note 20. The sound device according to Supplementary note 5, wherein the connecting member does not overlap with the first vibration device.

[0076] Supplementary note 21. The sound device according to any one of Supplementary note 5 to Supplementary note 20, wherein the connecting member is connected to a rear peripheral portion of the first vibration member.

[0077] Note 22. The sound device according to any one of Notes 5 to 20, further comprising:

[0078] a housing located between the first vibration member and the connecting member and having an internal space; and

[0079] an intermediate coupling member located between the first vibration member and the housing,

[0080] wherein the first vibration member is configured to cover the inner space of the housing, and

[0081] Wherein, the connecting member is connected to the rear peripheral portion of the housing.

[0082] Note 23. The sound equipment described in Note 22,

[0083] Wherein, the housing comprises:

[0084] a plate spaced apart from the first vibrating device; and

[0085] connected to the panels to form side walls of the interior space, and

[0086] Wherein, the intermediate connecting member is located between the first vibration member and the side wall of the housing.

[0087] Supplementary note 24. The sound device according to Supplementary note 22, wherein the housing further comprises an opening portion connected to the internal space and overlapping with the first vibration device.

[0088] Note 25. The sound equipment described in Note 24,

[0089] Wherein, the housing further comprises:

[0090] The device is configured as an inclined surface inclined between the inner side surface of the housing and the opening.

[0091] Note 26. A vehicle device, comprising:

[0092] Exposed interior materials in interior spaces; and

[0093] at least one or more sound generating devices connected to the interior material and configured to output sound to the interior space,

[0094] wherein the at least one or more sound generating devices include the sound device according to any one of Notes 1 to 25, and

[0095] wherein the interior material is connected to the connection member of the sound device.

[0096] Supplementary note 27. The vehicle device according to Supplementary note 26, further comprising a gap space provided between the interior material and the first sound generating portion through the connecting member of the sound device.

[0097] Supplementary note 28. The vehicle apparatus according to Supplementary note 27, wherein the interior material includes one or more holes connected to the gap space.

[0098] Supplementary note 29. The vehicle device according to Supplementary note 26, wherein the sound device comprises:

[0099] a housing located between the first sound generating portion and the connecting member and having an internal space; and

[0100] an intermediate coupling member located between the first sound generating portion and the housing, and

[0101] Wherein, the connecting member is located between the interior material and the rear peripheral portion of the shell.

[0102] Note 30. The vehicle device according to Note 29,

[0103] Wherein, the housing comprises:

[0104] a plate spaced apart from the first sound generating portion; and

[0105] connected to the panels to form side walls of the interior space, and

[0106] Wherein, the intermediate connecting member is located between a peripheral portion of the first sound generating part and the side wall of the housing.

[0107] Supplementary note 31. The vehicle apparatus according to Supplementary note 30, wherein the housing further includes an opening portion, the opening portion being located at the plate and connected to the internal space.

[0108] Supplementary note 32. The vehicle apparatus according to Supplementary note 31, wherein the interior material includes one or more opening holes overlapping with the opening portion of the housing.

[0109] Note 33. The vehicle device according to Note 31,

[0110] wherein the interior material includes an opening hole connected to the opening portion of the housing, and

[0111] The housing further includes a protrusion that protrudes from the housing to surround the opening and is configured to be accommodated in the opening hole.

[0112] Note 34. The vehicle apparatus according to Note 26, wherein the interior material comprises one or more materials selected from the group consisting of metal, wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather.

[0113] Note 35. The vehicle equipment according to Note 26,

[0114] wherein the interior materials include at least one or more of an instrument panel, a pillar interior material, a roof interior material, a door interior material, a seat interior material, a handle interior material, a floor interior material, a rear package interior material, an overhead console, a rearview mirror, a glove box, a decorative component, and a sun visor, and

[0115] Wherein, the at least one or more sound generating devices are configured to vibrate at least one or more of the dashboard, the pillar interior material, the roof interior material, the door interior material, the seat interior material, the handle interior material, the floor interior material, the rear package interior material, the overhead console, the rearview mirror, the glove box, the decorative component and the sun visor to generate sound.

[0116] Note 36. A sound device, comprising:

[0117] a first sound generating unit;

[0118] a second sound generating portion spaced apart from the first sound generating portion;

[0119] a coupling member partially disposed between the first sound generating portion and the second sound generating portion; and

[0120] a connecting member provided along a rear peripheral portion of the first sound generating portion,

[0121] The sound device is configured to output the sound of a first tone vocal cord based on the vibration of one of the first sound generating part and the second sound generating part and to output the sound of a second tone vocal cord based on the vibration of the other of the first sound generating part and the second sound generating part. BRIEF DESCRIPTION OF THE DRAWINGS

[0122] The accompanying drawings, which are included to provide a further understanding of the present disclosure, are incorporated in and constitute a part of this disclosure, illustrate aspects and embodiments of the present disclosure, and together with the description serve to explain the principles of the present disclosure. In the drawings:

[0123] Figure 1 is a diagram illustrating a sound device according to an exemplary embodiment of the present disclosure.

[0124] Figure 2 is a diagram illustrating a sound apparatus for a vehicle according to another exemplary embodiment of the present disclosure.

[0125] Figure 3 is a perspective view illustrating a sound device according to an exemplary embodiment of the present disclosure.

[0126] Figure 4 is an exploded perspective view of a sound device according to an exemplary embodiment of the present disclosure.

[0127] Figure 5 According to an exemplary embodiment of the present disclosure Figure 4 The cross-sectional view is taken along line II'.

[0128] Figure 6 According to an exemplary embodiment of the present disclosure Figure 4 The cross-sectional view is taken along line II-II'.

[0129] Figure 7 is a perspective view illustrating a sound device according to another exemplary embodiment of the present disclosure.

[0130] Figure 8 According to an exemplary embodiment of the present disclosure Figure 7 A cross-sectional view taken along line III-III' is shown.

[0131] Figure 9 is a perspective view illustrating a sound device according to another exemplary embodiment of the present disclosure.

[0132] Figure 10 is an exploded perspective view of a sound device according to another exemplary embodiment of the present disclosure.

[0133] Figure 11 According to an exemplary embodiment of the present disclosure Figure 9 A cross-sectional view taken along line IV-IV' is shown.

[0134] Figure 12 According to an exemplary embodiment of the present disclosure Figure 9 A cross-sectional view taken along line VV' is shown.

[0135] Figure 13 is a perspective view illustrating a sound device according to another exemplary embodiment of the present disclosure.

[0136] Figure 14 is an exploded perspective view of a sound device according to another exemplary embodiment of the present disclosure.

[0137] Figure 15 is a perspective view illustrating a sound device according to another exemplary embodiment of the present disclosure.

[0138] Figure 16 is an exploded perspective view of a sound device according to another exemplary embodiment of the present disclosure.

[0139] Figure 17 According to an exemplary embodiment of the present disclosure Figure 15 A cross-sectional view taken along line VI-VI' is shown.

[0140] Figure 18 According to an exemplary embodiment of the present disclosure Figure 15 A cross-sectional view taken along line VII-VII' is shown.

[0141] Figure 19 is a diagram illustrating a sound device according to another exemplary embodiment of the present disclosure.

[0142] Figure 20 According to an exemplary embodiment of the present disclosure Figure 19 A cross-sectional view taken along line VIII-VIII' is shown.

[0143] Figure 21 According to an exemplary embodiment of the present disclosure Figure 19 Another cross-sectional view taken along line VIII-VIII' is shown.

[0144] Figure 22 According to an exemplary embodiment of the present disclosure Figure 19 Another cross-sectional view taken along line VIII-VIII' is shown.

[0145] Figure 23 is a cross-sectional view illustrating a sound apparatus according to another exemplary embodiment of the present disclosure.

[0146] Figure 24 is a diagram showing an exemplary embodiment according to the present disclosure Figure 23 A perspective view of the housing is shown.

[0147] Figure 25 is a diagram illustrating a vibration generator of a vibration device according to an exemplary embodiment of the present disclosure.

[0148] Figure 26 According to an exemplary embodiment of the present disclosure Figure 25 A cross-sectional view taken along line IX-IX' is shown.

[0149] Figure 27 According to an exemplary embodiment of the present disclosure Figure 25 A cross-sectional view taken along line XX' shown in FIG.

[0150] Figure 28 is a diagram illustrating a vibration portion according to another exemplary embodiment of the present disclosure.

[0151] Figure 29 is a diagram illustrating a vibration portion according to another exemplary embodiment of the present disclosure.

[0152] Figure 30 is a diagram illustrating a vibration generator of a vibration apparatus according to another exemplary embodiment of the present disclosure.

[0153] Figure 31 is a diagram illustrating a vehicle device according to an exemplary embodiment of the present disclosure.

[0154] Figure 32 is a diagram illustrating a vehicle device according to an exemplary embodiment of the present disclosure.

[0155] Figure 33 It shows the settings Figure 31 and Figure 32 A diagram of a sound generating device at the roof of a vehicle apparatus is shown.

[0156] Figure 34 It shows the settings Figure 31 and Figure 32 Diagram of the sound generating devices at the roof and seats of the vehicle arrangement shown.

[0157] Figure 35 is a graph illustrating sound output characteristics of a sound device according to an exemplary embodiment of the present disclosure.

[0158] Figure 36 is a graph illustrating sound output characteristics of a sound device according to an exemplary embodiment of the present disclosure.

[0159] Figure 37 : is a graph showing sound output characteristics of a sound device according to an exemplary embodiment of the present disclosure and an experimental example.

[0160] Throughout the drawings and detailed description, unless otherwise described, the same drawing reference numerals should be understood to refer to the same elements, features, and structures. The size, length, thickness, and depiction of layers, regions, and elements may be exaggerated for clarity, illustration, and convenience. DETAILED DESCRIPTION

[0161] Reference will now be made in detail to embodiments of the present disclosure, examples of which may be illustrated in the accompanying drawings. The described progression of processing steps and / or operations is an example; however, the order of the steps and / or operations is not limited to that set forth herein and may be modified in a manner known in the art, except that steps and / or operations must occur in a specific order. The names of the elements used in the following description may be selected solely for convenience in writing the specification and, therefore, may differ from the names used in the actual product.

[0162] The advantages and features of the present disclosure and their implementation methods are illustrated by the aspects described with reference to the accompanying drawings. However, the present disclosure can be embodied in different forms and should not be construed as limited to the example aspects set forth herein. Rather, these example aspects are examples and are provided so that the present disclosure can be thorough and complete, to help those skilled in the art understand the inventive concepts without limiting the scope of protection of the present disclosure.

[0163] The shapes (e.g., size, length, width, thickness, position, radius, diameter, area) ratios, angles, and quantities disclosed in the accompanying drawings for describing exemplary embodiments of the present disclosure are merely examples, and therefore, the present disclosure is not limited to the details shown. The same reference numerals refer to the same elements throughout. In the following description, when it is determined that a detailed description of related known functions or configurations unnecessarily obscures the key points of the present disclosure, the detailed description will be omitted or briefly given.

[0164] When “including,” “having,” “comprising,” “containing,” “consisting of,” or “formed of” is used in this specification, another part may be added unless “only” is used. Terms in the singular form may include plural forms unless mentioned otherwise.

[0165] The word "example" is used to refer to something that serves as an example or illustration. An aspect is an example aspect. "Implementation," "example," "aspect," etc. should not be construed as preferred or advantageous over other implementations. Unless otherwise specified, implementations, examples, exemplary implementations, aspects, etc. may refer to one or more implementations, one or more examples, one or more exemplary implementations, one or more aspects, etc. Furthermore, the term "may" encompasses all meanings of the term "can."

[0166] When explaining the elements, the elements are interpreted as including the error range although not explicitly described.

[0167] When describing a positional relationship, for example, when the positional relationship between two parts is described as "on," "above," "below," and "next to," one or more other parts may be disposed between the two parts, unless "just" or "directly" is used. For example, when one element or layer is disposed "on" another element or layer, a third layer or element may be interposed therebetween.

[0168] Terms such as "below," "lower," "above," "upper," etc. may be used herein to describe the relationship between elements or items shown in the figures. It will be understood that these terms are spatially relative and based on the orientation depicted in the figures.

[0169] When describing a temporal relationship, for example, when a temporal order is described as "after," "subsequently," "next," and "before," discontinuous cases may be included unless "just" or "directly" is used.

[0170] It should be understood that although the terms "first," "second," etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element, without departing from the scope of this disclosure.

[0171] When describing elements of the present disclosure, terms such as "first," "second," "A," "B," "(a)," "(b)," etc. may be used. These terms are intended to identify corresponding elements from other elements and are not used to define the nature, basis, order, or quantity of the elements.

[0172] When an element is “connected,” “coupled,” or “contacted” to another element, the element may not only be directly connected, coupled, or contacted to the other element but also be indirectly connected, coupled, or contacted to the other element with one or more intermediate elements interposed therebetween, unless otherwise specified.

[0173] When an element is stated to be “contacting” or “overlapping” another element, the element may not only be directly in contact with, overlapping, etc., but also be indirectly in contact with or overlapping with the other element with one or more intermediate elements disposed or interposed therebetween, unless otherwise specified.

[0174] The term "at least one" should be understood to include any and all combinations of one or more of the associated listed items. For example, the meaning of "at least one of the first, second, and third items" means all combinations of items listed from two or more of the first, second, and third items, as well as the first, second, or third item.

[0175] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the example embodiments belong. It will also be understood that terms, such as those defined in commonly used dictionaries, should be interpreted, for example, as having a meaning consistent with their meaning in the context of the relevant art and should not be interpreted in an idealized or overly formal sense unless expressly defined as such herein. For example, the term "part" or "unit" may apply, for example, to a separate circuit or structure, an integrated circuit, a computational block of a circuit device, or any structure configured to perform the described function, as will be understood by one of ordinary skill in the art.

[0176] As will be fully understood by those skilled in the art, the features of the various embodiments of the present disclosure may be coupled or combined with each other in part or in whole, and may interoperate and be driven technically in various ways. The exemplary embodiments of the present disclosure may be performed independently of each other, or may be performed together in a mutually dependent relationship.

[0177] Hereinafter, exemplary embodiments of the sound device according to the present disclosure will be described in detail with reference to the accompanying drawings. For ease of description, the scale of each element shown in the drawings is different from the actual scale, and therefore is not limited to the scale shown in the drawings.

[0178] Figure 1 : is a diagram showing a sound device according to an exemplary embodiment of the present disclosure. For example, Figure 1 is a diagram illustrating a sound apparatus for a vehicle according to an exemplary embodiment of the present disclosure.

[0179] refer to Figure 1 The sound device 30 according to the exemplary embodiment of the present disclosure may be disposed or equipped inside the vehicle 10 to output the sound S toward the interior space (or indoor space) IS of the vehicle (or vehicle device) 10 .

[0180] The vehicle 10 may be a vehicle device including one or more seats and one or more windows. For example, the vehicle 10 may include a car, a train, a ship, or an aircraft, but the embodiments of the present disclosure are not limited thereto.

[0181] The vehicle 10 according to an exemplary embodiment of the present disclosure may include a primary structure 110 .

[0182] The primary structure 110 of the vehicle 10 may include a main frame, a subframe, a side frame, a door frame, a lower frame, and a seat frame, but the embodiments of the present disclosure are not limited thereto. For example, the primary structure 110 may be a vehicle body, a vehicle structure, or a frame structure, but the embodiments of the present disclosure are not limited thereto.

[0183] The vehicle 10 according to the exemplary embodiment of the present disclosure may further include an exterior material 120 .

[0184] The exterior material 120 of the vehicle 10 may be configured to cover the primary structure 110. For example, the exterior material 120 of the vehicle 10 may be configured to cover an exterior portion of the primary structure 110. In the following description, the exterior material 120 may be a vehicle exterior material 120 and may be used interchangeably.

[0185] The exterior material 120 of the vehicle 10 may include a cowl panel, front fenders, an instrument panel, a pillar panel, a trunk panel, a roof panel (or ceiling), a floor panel, a door inner panel, a door outer panel, etc., but embodiments of the present disclosure are not limited thereto.

[0186] The exterior material 120 according to an exemplary embodiment of the present disclosure may include at least one or more of a planar portion (or flat portion) and a curved portion (or a tortuous portion or an uneven portion). For example, the exterior material 120 may have a structure corresponding to that of the corresponding main structure 110, or may have a structure different from that of the corresponding main structure 110.

[0187] The vehicle 10 according to the exemplary embodiment of the present disclosure may further include a vehicle interior material 130. In the following description, the vehicle interior material 130 may be referred to as the interior material 130 and may be used interchangeably. As an example, the sound device 30 may be provided on the vehicle interior material 130 and located below the main structure 110. For example, the sound device 30 may be configured in an area between the vehicle interior material 130 and the main structure 110, such as Figure 1 shown.

[0188] The vehicle interior material 130 may include all elements (or components) constituting the interior portion of the vehicle 10, or may include all elements provided at the interior space IS of the vehicle 10. For example, the vehicle interior material 130 may be an interior member or interior material of the vehicle 10, but embodiments of the present disclosure are not limited thereto.

[0189] The vehicle interior material 130 according to the exemplary embodiment of the present disclosure may be configured to cover one or more of the main structure 110 and the exterior material 120 in the interior space IS of the vehicle 10. For example, the vehicle interior material 130 may cover one or more of the main structure 110 and the exterior material 120 in the interior space IS of the vehicle 10 and may be configured to be exposed at the interior space IS of the vehicle 10.

[0190] The vehicle interior material 130 according to an exemplary embodiment of the present disclosure may be configured to be exposed at an interior portion and / or interior space IS of the vehicle 10. For example, the vehicle interior material 130 may be configured to cover one or more surfaces (or inner surfaces) of at least one or more of a main frame (or body), a side frame (or side body), a door frame (or door body), a handle frame (or steering hub), and a seat frame that are exposed at the interior space IS of the vehicle 10.

[0191] The vehicle interior materials 130 according to an exemplary embodiment of the present disclosure may include an instrument panel, pillar interior materials (or pillar trims), floor interior materials (or floor carpets), roof interior materials (or headliners), door interior materials (or door trims), handle interior materials (or steering wheel covers), seat interior materials, rear package interior materials (or rear seat shelves), overhead consoles (or lighting interior materials), rearview mirrors, glove boxes, and sun visors, etc., but the embodiments of the present disclosure are not limited thereto.

[0192] The vehicle interior material 130 according to an exemplary embodiment of the present disclosure may include one or more of metal, wood, rubber, plastic, glass, fiber, cloth, paper, mirror, leather, and carbon, but the embodiments of the present disclosure are not limited thereto. The vehicle interior material 130 including a plastic material may be an injection molded material achieved by an injection molding process using a thermoplastic resin or a thermosetting resin, but the embodiments of the present disclosure are not limited thereto. The vehicle interior material 130 including a fiber material may include at least one or more of plastic composite fiber, carbon fiber (or aramid fiber), and natural fiber, but the embodiments of the present disclosure are not limited thereto. The vehicle interior material 130 including a fiber material may include a textile sheet, a knitted sheet, or a non-woven fabric, etc., but the embodiments of the present disclosure are not limited thereto. For example, the paper may be a cone paper for a speaker. For example, the cone paper may be pulp or foam plastic, etc., but the embodiments of the present disclosure are not limited thereto. The vehicle interior material 130 including a leather material may include natural leather or artificial leather, but the embodiments of the present disclosure are not limited thereto.

[0193] The vehicle interior material 130 according to an exemplary embodiment of the present disclosure may include at least one or more of a flat portion and a curved portion (or a tortuous portion or an uneven portion). For example, the vehicle interior material 130 may have a structure corresponding to the structure (or inner surface structure) of the corresponding main structure 110, or may have a structure different from the structure of the corresponding main structure 110.

[0194] According to an exemplary embodiment of the present disclosure, a sound device 30 may be provided on a vehicle interior material 130. The sound device 30 may vibrate (or directly vibrate) the vehicle interior material 130 based on the vibration of the vehicle interior material 130 to generate sound S. For example, the sound device 30 may be configured to vibrate the vehicle interior material 130 to output sound S toward the interior portion and / or interior space IS of the vehicle 10 based on the vibration of the vehicle interior material 130. Thus, the sound device 30 may use the vehicle interior material 130 as a sound vibration plate or a sound diaphragm. As an example, one or more sound devices 30 may be configured to vibrate at least one or more regions (or portions) of the vehicle interior material 130 to output sound S toward the interior portion and / or interior space IS of the vehicle 10. The vehicle interior material 130 may be a vibration plate, a sound vibration plate, or a sound generating plate for outputting sound S, but embodiments of the present disclosure are not limited thereto. For example, the vehicle interior material 130 may be larger than the sound device 30, but embodiments of the present disclosure are not limited thereto.

[0195] According to an exemplary embodiment of the present disclosure, the sound device 30 may be provided in at least one or more of the instrument panel, pillar trim material, floor trim material, roof trim material, door trim material, handle trim material, and seat trim material, or may be provided in or connected to at least one or more of the rear package trim material, overhead console, rearview mirror, glove box, and sun visor. For example, the sound device 30 may vibrate (or directly vibrate) at least one or more of the instrument panel, pillar trim material, floor trim material, roof trim material, door trim material, handle trim material, seat trim material, rear package trim material, overhead console, rearview mirror, glove box, and sun visor to output sound S toward the interior portion and / or interior space IS of the vehicle 10.

[0196] The vehicle 10 according to the exemplary embodiment of the present disclosure may include one or more sound devices 30 provided in or connected to at least one or more regions (or portions) of the vehicle interior material 130. The one or more sound devices 30 may vibrate at least one or more regions (or portions) of the vehicle interior material 130 to output realistic sound S including multi-channels and / or stereo sound toward the interior space IS of the vehicle 10.

[0197] According to an exemplary embodiment of the present disclosure, the sound device 30 may be configured in an area between the vehicle interior material 130 and the main structure 110, or in an area between the vehicle interior material 130 and the exterior material 120. The sound device 30 may be provided in an area between the vehicle interior material 130 and the main structure 110, or in an area between the vehicle interior material 130 and the exterior material 120, and may indirectly or directly vibrate one or more of the area between the vehicle interior material 130 and the main structure 110 and the area between the vehicle interior material 130 and the exterior material 120 to output a sound S, such as a realistic sound S and / or a stereo sound including multiple channels.

[0198] According to an exemplary embodiment of the present disclosure, the sound device 30 may be disposed in one or more of the region (or first region) between the main structure 110 and the exterior material 120, the region (or second region) between the main structure 110 and the vehicle interior material 130, or the exterior material 120 and the vehicle interior material 130. For example, the sound device 30 may be disposed in one or more of the region (or first region) between the main structure 110 and the exterior material 120, the region (or second region) between the main structure 110 and the vehicle interior material 130, or the exterior material 120 and the vehicle interior material 130, and may be configured to output sound. For example, the sound device 30 may be disposed in one or more of the region (or first region) between the main structure 110 and the exterior material 120, the region (or second region) between the main structure 110 and the vehicle interior material 130, or the exterior material 120 and the vehicle interior material 130, and may indirectly or directly vibrate one or more of the main structure 110, the exterior material 120, and the vehicle interior material 130 to output sound.

[0199] According to an exemplary embodiment of the present disclosure, the sound device 30 can output sound in the area between the exterior material 120 and the interior material 130 of the vehicle 10. For example, the sound device 30 can be disposed in the area (or third area) between the exterior material 120 and the interior material 130, or in at least one or more of the exterior material 120 and the interior material 130. For example, the sound device 30 can be disposed between the exterior material 120 and the interior material 130 and can indirectly or directly vibrate one or more of the exterior material 120 and the interior material 130 to output sound. For example, the sound device 30 can be connected or coupled to one or more of the exterior material 120 and the interior material 130 between the exterior material 120 and the interior material 130 and can indirectly or directly vibrate one or more of the exterior material 120 and the interior material 130 to output sound. For example, at least one or more of the exterior material 120 and the interior material 130 can output sound S based on the driving (or vibration or displacement) of one or more sound devices 30.

[0200] According to an exemplary embodiment of the present disclosure, one or more of the exterior material 120 and the vehicle interior material 130 of the vehicle 10 may be a vibration plate, a sound vibration plate, a sound generating plate, or the like for outputting sound S. For example, each of the exterior material 120 and the vehicle interior material 130 for outputting sound S may have a size (or area) larger than the size (or area) of the sound device 30 and, therefore, may function as a large-area vibration plate, a large-area sound vibration plate, or a large-area sound generating plate, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the tonal sound band, including the low-pitched sound band, generated by the sound device 30. For example, the frequency of the sound of the low-pitched sound band may be 300 Hz or less, 400 Hz or less, or 500 Hz or less, but embodiments of the present disclosure are not limited thereto.

[0201] Figure 2 : is a diagram showing a sound device for a vehicle according to another exemplary embodiment of the present disclosure. For example, Figure 2 Shown by modifying the above reference Figure 1 Therefore, in the following description, repeated descriptions of elements other than the vehicle interior material 130 may be omitted or will be briefly given.

[0202] refer to Figure 2 , the sound device 30 according to another exemplary embodiment of the present disclosure may vibrate the vehicle interior material 130 to output the sound S.

[0203] The vehicle interior material 130 according to an exemplary embodiment of the present disclosure may include one or more materials of metal, wood, rubber, plastic, glass, fiber, cloth, paper, mirror, leather, and carbon, but embodiments of the present disclosure are not limited thereto.

[0204] According to another exemplary embodiment of the present disclosure, a vehicle interior material 130 may include a base member 131 and a surface member 133. For example, the base member 131 may be an injection molded material, a first interior material, an interior interior material, or a rear interior material, but the present disclosure is not limited thereto. The surface member 133 may be a second interior material, an exterior interior material, a front interior material, an outer surface member, a reinforcement member, or a decorative member, but the present disclosure is not limited thereto.

[0205] The base member 131 may include a plastic material. The base member 131 according to an exemplary embodiment of the present disclosure may include an injection molding material. For example, the base member 131 may be an injection molding material achieved by an injection molding process using a thermoplastic resin or a thermosetting resin, but the embodiments of the present disclosure are not limited thereto. The vehicle interior material 130 or the base member 131 may be configured to cover an interior portion of the vehicle 10. For example, the vehicle interior material 130 or the base member 131 may be configured to cover one or more of the main structure 110 and the exterior material 120 in the interior space IS of the vehicle 10. For example, the vehicle interior material 130 or the base member 131 may be configured to cover one or more of the main frame, side frame, door frame, and handle frame exposed at the interior space IS of the vehicle 10.

[0206] The base member 131 may include at least one or more of a planar portion and a curved portion. For example, the base member 131 may have a structure corresponding to the structure (or rear structure) of the corresponding main structure 110, or may have a structure different from the structure of the corresponding main structure 110.

[0207] The surface member 133 may be provided on the base member 131. For example, the surface member 133 may be provided to cover the base member 131. The surface member 133 may cover the base member 131 at the interior portion or interior space IS of the vehicle 10, and may be configured to be exposed at the interior portion or interior space IS of the vehicle 10. For example, the surface member 133 may be provided in or coupled to the front surface (or inner surface) of the base member 131 exposed at the interior space IS of the vehicle 10. For example, the sound device 30 may be provided on the surface member 133 of the vehicle interior material 130 and located below the main structure 110. For example, the sound device 30 may be configured in an area between the vehicle interior material 130 and the main structure 110, as shown in FIG. Figure 2 shown.

[0208] The vehicle interior material 130 or surface member 133 according to an exemplary embodiment of the present disclosure may include one or more materials of plastic, glass, fiber, leather, cloth, rubber, mirror, wood, paper, carbon and metal, but the embodiments of the present disclosure are not limited thereto. For example, the surface member 133 may be a fiber material. For example, the surface member 133 including the fiber material may include at least one or more of synthetic fiber, carbon fiber (or aramid fiber) and natural fiber, but the embodiments of the present disclosure are not limited thereto. For example, the surface member 133 including the fiber material may be a textile sheet, a knitted sheet or a non-woven fabric, but the embodiments of the present disclosure are not limited thereto. For example, the surface member 133 including the fiber material may be a fabric member, but the embodiments of the present disclosure are not limited thereto.

[0209] The synthetic fiber may be a thermoplastic resin and may include polyolefin-based fibers, which are environmentally friendly materials that release relatively few harmful substances. For example, the polyolefin-based fibers may include polyethylene fibers, polypropylene fibers, or polyethylene terephthalate fibers, but the embodiments of the present disclosure are not limited thereto. The polyolefin-based fibers may be fibers of a single resin or fibers with a core-shell structure, but the embodiments of the present disclosure are not limited thereto. The natural fiber may be one or a composite fiber of two or more of jute fibers, kenaf fibers, abaca fibers, coconut fibers, and wood fibers, but the embodiments of the present disclosure are not limited thereto.

[0210] The sound device 30 may be covered by the vehicle interior material 130. The sound device 30 may be configured to vibrate (or directly vibrate) the vehicle interior material 130, including the base member 131 and the surface member 133, to output sound S based on the vibration of the vehicle interior material 130. For example, the sound device 30 may be configured to vibrate the vehicle interior material 130, including the base member 131 and the surface member 133, to output sound S toward the interior portion and / or interior space IS of the vehicle 10. Therefore, the sound device 30 may use the vehicle interior material 130, including the base member 131 and the surface member 133, as a sound vibration plate or a sound diaphragm.

[0211] The sound device 30 according to another exemplary embodiment of the present disclosure may output sound S toward the interior space IS of the vehicle 10 using the vehicle interior material 130 as a vibration plate or a sound vibration plate, and may output realistic sound S including multi-channels and / or stereo sound toward the interior space IS of the vehicle 10 .

[0212] According to another exemplary embodiment of the present disclosure, the sound device 30 can be configured to be surrounded by a housing. A space can be provided between the sound device 30 and the housing, and sound (or sound pressure level) can be output based on the vibration of the vehicle interior material 130 in the air between the sound device 30 and the housing. However, there may be a problem of not outputting sound in the low-pitched vocal range, and there may be a problem of reduced flatness of the sound pressure level. This is because the number of peaks and valleys occurring in the reproduction frequency band of the sound (or sound pressure level) generated by the vibration of the vehicle interior material 130 increases, and each of the highest sound pressure level and the lowest sound pressure level occurring in the reproduction frequency band of the sound (or sound pressure level) generated by the vibration of the vehicle interior material 130 increases. A peak can be a phenomenon in which the sound pressure level bounces at a specific frequency, and a valley can be a phenomenon in which the sound pressure level decreases as the occurrence of sound of a specific frequency decreases. The flatness of the sound characteristic can be the deviation level between the highest sound pressure and the lowest sound pressure at a specific frequency.

[0213] The inventors of the present disclosure have conducted extensive research and experimentation to develop a sound device and a vehicle device including the sound device, which can enhance (or improve) the sonic characteristics of sounds including low-pitched vocal ranges and mid-to-high-pitched vocal ranges. Based on the extensive research and experimentation, the inventors of the present disclosure have invented a sound device and a vehicle device including the sound device, which can enhance the sonic characteristics of sounds including low-pitched vocal ranges and mid-to-high-pitched vocal ranges. This will be described in detail below.

[0214] Figure 3 is a perspective view illustrating a sound device according to an exemplary embodiment of the present disclosure. Figure 4 is an exploded perspective view of a sound device according to an exemplary embodiment of the present disclosure. Figure 5 According to an exemplary embodiment of the present disclosure Figure 4 The cross-sectional view is taken along line II'. Figure 6 According to an exemplary embodiment of the present disclosure Figure 4 The cross-sectional view is taken along line II-II'.

[0215] refer to Figures 3 to 6 The sound device 30 (or a sound device for a vehicle) according to an exemplary embodiment of the present disclosure can be configured to vibrate a vibrating object or a vehicle structure. For example, the sound device 30 can be a sound generating device, a sound output device, a speaker device, an in-vehicle audio device, or an audio device, but the embodiments of the present disclosure are not limited thereto.

[0216] The sound device 30 may be configured to be connected (or coupled) to a vibrating object or vehicle structure. For example, the sound device 30 may be located at Figure 1 or Figure 2The sound device 30 may be connected to a portion of any one of the main structure 110, the exterior material 120, and the interior material 130 to generate (or output) sound. Figure 1 or Figure 2 Any one of the illustrated main structure 110 , the exterior material 120 , and the interior material 130 vibrates to generate (or output) sound.

[0217] The sound apparatus 30 according to an exemplary embodiment of the present disclosure may include a first sound generating part 310 , a second sound generating part 330 , and a coupling member 320 .

[0218] As an example, the sound device 30 according to an exemplary embodiment of the present disclosure may include a first sound generating part 310, a second sound generating part 330 spaced apart from the first sound generating part 310, and a connecting member 320 partially disposed between the first sound generating part 310 and the second sound generating part 330, but is not limited thereto.

[0219] The first sound generating unit 310 may be configured to generate or output sound (or sound waves) or vibration. For example, the first sound generating unit 310 may include a rectangular shape having a long side and a short side, but the embodiments of the present disclosure are not limited thereto. For example, the long side (or long side length) of the first sound generating unit 310 may be at least two times or more the short side (or short side length) of the first sound generating unit 310, but the embodiments of the present disclosure are not limited thereto. For example, the first sound generating unit 310 may be a sound generating device, a sound generating means, a sound generating module, a sound generating unit, a lower sound generating unit, a lower sound generating means, a lower sound generating module or a lower sound generating unit, but the embodiments of the present disclosure are not limited thereto.

[0220] The first sound generating portion 310 according to an exemplary embodiment of the present disclosure may include a first vibration member 311 and a first vibration device 313 .

[0221] As one example, the sound generating part 310 according to an exemplary embodiment of the present disclosure may include a first vibration member 311 and a first vibration device 313 connected to the first vibration member 311 and configured to vibrate the first vibration member 311 .

[0222] The first vibration member 311 may generate vibration or may output sound (or sound waves or sound pressure level) based on the driving (or vibration or displacement) of the first vibration device 313. For example, the first vibration member 311 may be a first vibration plate, a first passive vibration member, a first passive vibration panel, a lower vibration member, a lower vibration plate, a lower passive vibration member, or a lower passive vibration panel, but embodiments of the present disclosure are not limited thereto.

[0223] The first vibration member 311 may have a quadrilateral shape, but embodiments of the present disclosure are not limited thereto. For example, the first vibration member 311 may have a rectangular shape including a long side and a short side, but embodiments of the present disclosure are not limited thereto. For example, the long side (or the length of the long side) of the first vibration member 311 may be at least two times or more the short side (or the length of the short side) of the first vibration member 311, but embodiments of the present disclosure are not limited thereto.

[0224] According to an exemplary embodiment of the present disclosure, the first vibration member 311 may have a flat plate structure having long and short sides, but the embodiments of the present disclosure are not limited thereto. For example, the first vibration member 311 may include a first surface 311a and a second surface 311b opposite the first surface 311a. For example, in the first vibration member 311, the first surface 311a may be the front surface or the upper surface, and the second surface 311b may be the rear surface or the lower surface, without limitation thereto.

[0225] The first vibration device 313 may be configured to vibrate the first vibration member 311. The first vibration device 313 may be configured to vibrate (or displace or drive) the first vibration member 311 based on a drive signal (or vibration drive signal or voice signal) applied thereto. For example, the first vibration device 313 may be a vibration generating device, a vibration generating device, a displacement device, a displacement device, a piezoelectric vibration device, or a piezoelectric vibration device, but embodiments of the present disclosure are not limited thereto.

[0226] The first vibration device 313 may have the same shape as the first vibration member 311, but embodiments of the present disclosure are not limited thereto. Alternatively, the first vibration device 313 may have a different shape than the first vibration member 311. For example, the first vibration device 313 may have a rectangular shape with long and short sides, but embodiments of the present disclosure are not limited thereto. For example, the first vibration device 313 may have a smaller size than the first vibration member 311, but embodiments of the present disclosure are not limited thereto.

[0227] The first vibration device 313 may be provided in one or more of the first surface 311a and the second surface 311b of the first vibration member 311 or connected to one or more of the first surface 311a and the second surface 311b of the first vibration member 311. The first vibration device 313 according to an exemplary embodiment of the present disclosure may include one or more (or a plurality of) vibration generators 313a and 313b connected to one or more of the first surface 311a and the second surface 311b of the first vibration member 311.

[0228] The first vibration device 313 according to an exemplary embodiment of the present disclosure may include a first vibration generator 313 a and a second vibration generator 313 b .

[0229] The first vibration generator 313a and the second vibration generator 313b can be arranged or configured with the first vibration member 311 therebetween. For example, the first vibration generator 313a and the second vibration generator 313b can overlap each other with the first vibration member 311 therebetween. The first vibration generator 313a can be arranged in the first surface 311a of the first vibration member 311 or connected to the first surface 311a of the first vibration member 311. The second vibration generator 313b can be arranged in the second surface 311b of the first vibration member 311 or connected to the second surface 311b of the first vibration member 311. For example, the first vibration generator 313a can be the 1-1st vibration generator or the first upper vibration generator. For example, the second vibration generator 313b can be the 1-2nd vibration generator or the first lower vibration generator.

[0230] According to an exemplary embodiment of the present disclosure, the long side of each of the first vibration generator 313a and the second vibration generator 313b may be parallel to the long side of the first vibration member 311 and may be spaced apart from the long side of the first vibration member 311. According to an exemplary embodiment of the present disclosure, the short side of each of the first vibration generator 313a and the second vibration generator 313b may be parallel to the short side of the first vibration member 311 and may be spaced apart from the short side of the first vibration member 311. The size of each of the first vibration generator 313a and the second vibration generator 313b may be smaller than the size of the first vibration member 311, but embodiments of the present disclosure are not limited thereto.

[0231] Each of the first vibration generator 313a and the second vibration generator 313b can be configured to vibrate (or displace or drive) the first vibration member 311 based on the vibration (or displacement or drive) of the piezoelectric material, and the vibration of the piezoelectric material is based on the electrical signal (or voice signal or sound signal) applied to the piezoelectric material. For example, each of the first vibration generator 313a and the second vibration generator 313b can vibrate (or displace or drive) by alternately repeating contraction and / or expansion through the piezoelectric effect (or piezoelectric characteristics). For example, when contraction and / or expansion are alternately repeated through the inverse piezoelectric effect, each of the first vibration generator 313a and the second vibration generator 313b can vibrate (or displace or drive) in the vertical direction (or thickness direction) Z. For example, in each of the first vibration generator 313a and the second vibration generator 313b, the piezoelectric material including piezoelectric ceramics can vibrate or mechanically displace (or vibrate or drive) in response to an electrical signal applied from the outside. Therefore, based on the displacement (or driving) of each of the first vibration generator 313 a and the second vibration generator 313 b , the first vibration member 311 may generate vibration or may output sound (or sound waves).

[0232] According to an exemplary embodiment of the present disclosure, the drive signals (or vibration drive signals or voice signals) applied to the first vibration generator 313a and the second vibration generator 313b may be the same or different. For example, the drive signals applied to the first vibration generator 313a and the second vibration generator 313b may have the same phase or different phases. For example, the first vibration generator 313a and the second vibration generator 313b may have a bimorph structure with the first vibration member 311 disposed therebetween. Each of the first vibration generator 313a and the second vibration generator 313b can independently vibrate the first vibration member 311, thereby reducing its impact on the sound characteristics based on the material and characteristics of the first vibration member 311. Therefore, the sound characteristics and / or sound pressure level characteristics of the tonal vocal range of the sound device 30, including the low-pitched vocal range, can be enhanced.

[0233] According to another exemplary embodiment of the present disclosure, the first vibration generator 313a and the second vibration generator 313b can be configured at either the first surface 311a or the second surface 311b of the first vibration member 311. For example, the first vibration generator 313a can be configured at either the first surface 311a or the second surface 311b of the first vibration member 311. For example, the first vibration generator 313a can be connected to the first surface 311a of the first vibration member 311 or configured at the first surface 311a of the first vibration member 311. For example, the second vibration generator 313b can be connected to the first vibration generator 313a or stacked on the first vibration generator 313a.

[0234] The sound device 30 or the first sound generating part 310 according to the exemplary embodiment of the present disclosure may further include a first adhesive member 312 .

[0235] The first adhesive member 312 may be disposed (or interposed) between the first vibration member 311 and the first vibration device 313. For example, the first vibration device 313 may be connected or coupled to the first vibration member 311 through the first adhesive member 312. For example, the first adhesive member 312 may be disposed (or interposed) between the first vibration member 311 and one or more vibration generators 313a and 313b.

[0236] The first bonding member 312 according to an exemplary embodiment of the present disclosure may include a first upper bonding member (or a 1-1th bonding member) 312 a and a first lower bonding member (or a 1-2th bonding member) 312 b .

[0237] The first upper adhesive member 312a may be disposed (or interposed) between the first vibration member 311 and the first vibration generator 313a. The first vibration generator 313a may be connected or coupled to the first vibration member 311 via the first upper adhesive member 312a. For example, the first vibration generator 313a may be connected or coupled to the first surface 311a of the first vibration member 311 via the first upper adhesive member 312a.

[0238] The first lower adhesive member 312b may be disposed (or interposed) between the first vibration member 311 and the second vibration generator 313b. The second vibration generator 313b may be connected or coupled to the first vibration member 311 via the first lower adhesive member 312b. For example, the second vibration generator 313b may be connected or coupled to the second surface 311b of the first vibration member 311 via the first lower adhesive member 312b.

[0239] The first adhesive member 312 may include an adhesive layer (or adhesive layer) having good adhesion or attachment, but embodiments of the present disclosure are not limited thereto. For example, the first upper adhesive member 312a and the first lower adhesive member 312b may include an adhesive layer (or adhesive layer) having good adhesion or attachment. For example, the first adhesive member 312 or the first upper adhesive member 312a and the first lower adhesive member 312b may include the same or different adhesive layers (or adhesive layers). For example, the first adhesive member 312 or the first upper adhesive member 312a and the first lower adhesive member 312b may include an adhesive, a double-sided adhesive, a double-sided tape, a double-sided adhesive tape, a double-sided foam tape, a double-sided pad, a double-sided foam pad, a double-sided adhesive foam pad, a double-sided cushion tape, or an adhesive sheet, but embodiments of the present disclosure are not limited thereto.

[0240] The second sound generating unit 330 may be configured to generate or output sound (or sound waves) or vibration. For example, the second sound generating unit 330 may include a rectangular shape having a long side and a short side, but the embodiments of the present disclosure are not limited thereto. For example, the long side (or long side length) of the second sound generating unit 330 may be at least two times or more times the short side (or short side length) of the second sound generating unit 330, but the embodiments of the present disclosure are not limited thereto. For example, the second sound generating unit 330 may be configured to have the same shape and size as the first sound generating unit 310, but the embodiments of the present disclosure are not limited thereto. For example, the second sound generating unit 330 may be a sound generating device, a sound generating means, a sound generating module, a sound generating unit, an upper sound generating unit, an upper sound generating means, an upper sound generating module or an upper sound generating unit, but the embodiments of the present disclosure are not limited thereto.

[0241] The second sound generating portion 330 according to an exemplary embodiment of the present disclosure may include a second vibration member 331 and a second vibration device 333 .

[0242] As an example, the second sound generating portion 330 according to an exemplary embodiment of the present disclosure may include a second vibration member 331 and a second vibration device 333 connected to the second vibration member 331 and configured to vibrate the second vibration member 331, and the coupling member 320 may be partially disposed between the first vibration member 311 and the second vibration member 331.

[0243] The second vibration member 331 may generate vibration or may output sound (or sound waves or sound pressure level) based on the driving (or vibration or displacement) of the second vibration device 333. For example, the second vibration member 331 may be a second vibration plate, a second passive vibration member, a second passive vibration panel, an upper vibration member, an upper vibration plate, an upper passive vibration member, or an upper passive vibration panel, but embodiments of the present disclosure are not limited thereto.

[0244] The second vibration member 331 may include a quadrilateral shape, but embodiments of the present disclosure are not limited thereto. For example, the second vibration member 331 may have a rectangular shape including a long side and a short side, but embodiments of the present disclosure are not limited thereto. For example, the long side (or the length of the long side) of the second vibration member 331 may be at least two times or more the short side (or the length of the short side) of the second vibration member 331, but embodiments of the present disclosure are not limited thereto. For example, the second vibration member 331 may have the same or a different shape as the first vibration member 311 of the first sound generating unit 310, but embodiments of the present disclosure are not limited thereto. For example, the second vibration member 331 may have a size that is smaller than or equal to the size of the first vibration member 311 of the first sound generating unit 310, but embodiments of the present disclosure are not limited thereto.

[0245] According to an exemplary embodiment of the present disclosure, the second vibration member 331 may have a flat plate structure with long and short sides, but the embodiments of the present disclosure are not limited thereto. For example, the second vibration member 331 may include a first surface 331a and a second surface 331b opposite the first surface 331a. For example, in the second vibration member 331, the first surface 331a may be the front surface or the upper surface, and the second surface 331b may be the rear surface or the lower surface, but the embodiments of the present disclosure are not limited thereto. For example, the second surface 331b of the second vibration member 331 may face the first sound generating unit 310.

[0246] The second vibration device 333 may be configured to vibrate the second vibration member 331. The second vibration device 333 may be configured to vibrate (or displace or drive) the second vibration member 331 based on a drive signal (or vibration drive signal or voice signal) applied thereto. For example, the second vibration device 333 may be a vibration generating device, a vibration generating device, a displacement device, a displacement device, a piezoelectric vibration device, or a piezoelectric vibration device, but embodiments of the present disclosure are not limited thereto.

[0247] The shape of the second vibration device 333 can be the same as or different from the shape of the second vibration member 331. For example, the second vibration device 333 can have a rectangular shape with long and short sides, but embodiments of the present disclosure are not limited thereto. For example, the second vibration device 333 can have a smaller size than the second vibration member 331, but embodiments of the present disclosure are not limited thereto.

[0248] The second vibration device 333 may be provided in one or more of the first surface 331a and the second surface 331b of the second vibration member 331 or connected to one or more of the first surface 331a and the second surface 331b of the second vibration member 331. The second vibration device 333 according to an exemplary embodiment of the present disclosure may include one or more (or a plurality of) vibration generators 333a and 333b connected to one or more of the first surface 331a and the second surface 331b of the second vibration member 331.

[0249] The second vibration device 333 according to an exemplary embodiment of the present disclosure may include a third vibration generator 333 a and a fourth vibration generator 333 b .

[0250] The third vibration generator 333a and the fourth vibration generator 333b can be arranged or configured with the second vibration member 331 therebetween. For example, the third vibration generator 333a and the fourth vibration generator 333b can overlap each other with the second vibration member 331 therebetween. The third vibration generator 333a can be arranged at or connected to the first surface 331a of the second vibration member 331. The fourth vibration generator 333b can be arranged at or connected to the second surface 331b of the second vibration member 331. For example, the third vibration generator 333a can be the 2-1st vibration generator or the second upper vibration generator. For example, the fourth vibration generator 333b can be the 2-2nd vibration generator or the second lower vibration generator.

[0251] According to an exemplary embodiment of the present disclosure, the long side of each of the third vibration generator 333a and the fourth vibration generator 333b may be parallel to the long side of the second vibration member 331 and may be spaced apart from the long side of the second vibration member 331. According to an exemplary embodiment of the present disclosure, the short side of each of the third vibration generator 333a and the fourth vibration generator 333b may be parallel to the short side of the second vibration member 331 and may be spaced apart from the short side of the second vibration member 331. The size of each of the third vibration generator 333a and the fourth vibration generator 333b may be smaller than the size of the second vibration member 331, but embodiments of the present disclosure are not limited thereto.

[0252] Each of the third vibration generator 333a and the fourth vibration generator 333b can be configured to vibrate (or displace or drive) the second vibration member 331 based on the vibration (or displacement or drive) of the piezoelectric material, and the vibration of the piezoelectric material is based on the electrical signal (or voice signal or sound signal) applied to the piezoelectric material. For example, each of the third vibration generator 333a and the fourth vibration generator 333b can alternately repeat contraction and / or expansion to vibrate (or displace or drive) through the piezoelectric effect (or piezoelectric characteristics). For example, when contraction and / or expansion are alternately repeated through the inverse piezoelectric effect, each of the third vibration generator 333a and the fourth vibration generator 333b can vibrate (or displace or drive) in the vertical direction (or thickness direction) Z. For example, in each of the third vibration generator 333a and the fourth vibration generator 333b, the piezoelectric material including piezoelectric ceramics can vibrate or mechanically displace (or vibrate or drive) in response to an electrical signal applied from the outside. Therefore, based on the displacement (or driving) of each of the third vibration generator 333 a and the fourth vibration generator 333 b , the second vibration member 331 may generate vibration or may output sound (or sound waves).

[0253] According to an exemplary embodiment of the present disclosure, the drive signals (or vibration drive signals or voice signals) applied to the third vibration generator 333a and the fourth vibration generator 333b can be the same or different. For example, the drive signals applied to the third vibration generator 333a and the fourth vibration generator 333b can have the same phase or different phases. For example, the third vibration generator 333a and the fourth vibration generator 333b can have a bimorph structure with the second vibration member 331 disposed therebetween. Each of the third vibration generator 333a and the fourth vibration generator 333b can independently vibrate the second vibration member 331, thereby reducing its impact on the sound characteristics based on the material and characteristics of the second vibration member 331. Therefore, the sound characteristics and / or sound pressure level characteristics of the tonal vocal range of the sound device 30, including the low-pitched vocal range, can be enhanced.

[0254] According to another exemplary embodiment of the present disclosure, the third vibration generator 333a and the fourth vibration generator 333b can be configured at either the first surface 331a or the second surface 331b of the second vibration member 331. For example, the third vibration generator 333a can be configured at either the first surface 331a or the second surface 331b of the second vibration member 331. For example, the third vibration generator 333a can be connected to the first surface 331a of the second vibration member 331 or configured at the first surface 331a of the second vibration member 331. For example, the fourth vibration generator 333b can be connected to the third vibration generator 333a or stacked on the third vibration generator 333a.

[0255] The sound device 30 or the second sound generating part 330 according to the exemplary embodiment of the present disclosure may further include a second adhesive member 332 .

[0256] The second adhesive member 332 may be disposed (or interposed) between the second vibration member 331 and the second vibration device 333. For example, the second vibration device 333 may be connected or coupled to the second vibration member 331 via the second adhesive member 332. For example, the second adhesive member 332 may be disposed (or interposed) between the second vibration member 331 and one or more vibration generators 333a and 333b.

[0257] The second bonding member 332 according to an exemplary embodiment of the present disclosure may include a second upper bonding member (or 2-1st bonding member) 332a and a second lower bonding member (or 2-2nd bonding member) 332b.

[0258] The second upper adhesive member 332a may be disposed (or interposed) between the second vibration member 331 and the third vibration generator 333a. The third vibration generator 333a may be connected or coupled to the second vibration member 331 via the second upper adhesive member 332a. For example, the third vibration generator 333a may be connected or coupled to the first surface 331a of the second vibration member 331 via the second upper adhesive member 332a.

[0259] The second lower adhesive member 332b may be disposed (or interposed) between the second vibration member 331 and the fourth vibration generator 333b. The fourth vibration generator 333b may be connected or coupled to the second vibration member 331 via the second lower adhesive member 332b. For example, the fourth vibration generator 333b may be connected or coupled to the second surface 331b of the second vibration member 331 via the second lower adhesive member 332b.

[0260] The second adhesive member 332 may include an adhesive layer (or adhesive layer) having good adhesion or attachment, but embodiments of the present disclosure are not limited thereto. For example, the second upper adhesive member 332a and the second lower adhesive member 332b may include an adhesive layer (or adhesive layer) having good adhesion or attachment. For example, the second adhesive member 332 or the second upper adhesive member 332a and the second lower adhesive member 332b may include the same or different adhesive layers (or adhesive layers). For example, the second adhesive member 332 or the second upper adhesive member 332a and the second lower adhesive member 332b may include an adhesive, a double-sided adhesive, a double-sided tape, a double-sided adhesive tape, a double-sided adhesive foam tape, a double-sided pad, a double-sided foam pad, a double-sided adhesive foam pad, a double-sided cushioning tape, or an adhesive sheet, but embodiments of the present disclosure are not limited thereto.

[0261] According to an exemplary embodiment of the present disclosure, the first vibration member 311 may be configured with the same material as the second vibration member 331, or may be configured with a different material than the second vibration member 331. For example, one or more of the first vibration member 311 and the second vibration member 331 may be composed of a single non-metallic material or a composite non-metallic material, but the embodiments of the present disclosure are not limited thereto. For example, the single non-metallic material or the composite non-metallic material may include one or more of wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather, but the embodiments of the present disclosure are not limited thereto. For example, the paper may be a cone-shaped paper used for a speaker. For example, the cone-shaped paper may be pulp or foam plastic, etc., but the embodiments of the present disclosure are not limited thereto.

[0262] One or more of the first and second vibration members 311 and 331 according to an exemplary embodiment of the present disclosure may be configured as a plastic material of a plastic material or a styrene material, but the embodiments of the present disclosure are not limited thereto.

[0263] The plastic material of one or more of the first vibration member 311 and the second vibration member 331 may be configured as polyethylene terephthalate, polycarbonate, polyimide, polypropylene, polyarylate, polyethersulfone, polyethylene naphthalate, polysulfone, cyclic olefin copolymer, or carbon fiber reinforced plastic (CFRP), etc., but the embodiments of the present disclosure are not limited thereto.

[0264] The styrene material of one or more of the first vibration member 311 and the second vibration member 331 may be an ABS material. The ABS material may be acrylonitrile, butadiene, and styrene.

[0265] According to an exemplary embodiment of the present disclosure, one or more of the first vibration member 311 and the second vibration member 331 may include a porous material. For example, one or more of the first vibration member 311 and the second vibration member 331 may include a microcellular plastic material. For example, one or more of the first vibration member 311 and the second vibration member 331 may be configured as a polyethylene terephthalate material or a polycarbonate material. For example, one or more of the first vibration member 311 and the second vibration member 331 may be configured with a microcellular polyethylene terephthalate (MCPET) material. One or more of the first vibration member 311 and the second vibration member 331 configured with MCPET may have the ability to reproduce high original sound due to its low density and excellent elasticity, thereby enhancing the quality of the sound.

[0266] The coupling member 320 according to an exemplary embodiment of the present disclosure may be partially located between the first sound generating portion 310 and the second sound generating portion 330. For example, the coupling member 320 may be partially located between a peripheral portion (or edge portion) PP of the second sound generating portion 330 and the first sound generating portion 310. For example, the peripheral portion PP of the second sound generating portion 330 may be partially connected or coupled to the first sound generating portion 310 through the coupling member 320.

[0267] For example, the coupling member 320 may be disposed between the first sound generating portion 310 and the peripheral portion of the second sound generating portion 330 adjacent to the short side, but not between the peripheral portion of the second sound generating portion 330 adjacent to the long side and the first sound generating portion 310 , but is not limited thereto.

[0268] The sound device 30 according to the exemplary embodiment of the present disclosure may further include an air gap AG partially provided between the peripheral portion PP of the second sound generating part 330 and the first sound generating part 310. For example, the coupling member 320 may be partially located between the peripheral portion PP of the second sound generating part 330 and the first sound generating part 310 to include the air gap AG between the peripheral portion PP of the second sound generating part 330 and the first sound generating part 310. For example, the air gap AG may be located in at least a portion of the area between the peripheral portion PP of the second sound generating part 330 adjacent to the long side and the first sound generating part 310.

[0269] The coupling member 320 according to an exemplary embodiment of the present disclosure may be partially disposed between the second vibration member 331 of the second sound generating portion 330 and the first vibration member 311 of the first sound generating portion 310. For example, the coupling member 320 may be partially connected or coupled to the region between the first vibration member 311 and the second vibration member 331. For example, the coupling member 320 may be disposed (or interposed) in a portion of the region between the peripheral portion PP of the second vibration member 331 and the first vibration member 311. For example, the coupling member 320 may be partially disposed (or interposed) in the region between the peripheral portion PP of the second vibration member 331 and the first vibration member 311.

[0270] The sound device 30 according to an exemplary embodiment of the present disclosure may include an air gap AG partially provided between the first sound generating part 310 and the second sound generating part 330. For example, the sound device 30 according to an exemplary embodiment of the present disclosure may include an air gap AG partially provided between the first vibration member 311 of the first sound generating part 310 and the second vibration member 331 of the second sound generating part 330. For example, the sound device 30 may include an air gap AG partially provided between the first vibration member 311 and the second vibration member 331 via the coupling member 320. For example, the coupling member 320 may be partially provided (or interposed) in the area between the first vibration member 311 and the second vibration member 331 to include (or allow) the air gap AG between the first vibration member 311 and the second vibration member 331. For example, the coupling member 320 may be partially provided (or interposed) in the area between the first vibration member 311 and the second vibration member 331 to include (or allow) the air gap AG between the first vibration member 311 and the second vibration member 331. For example, the air gap AG may be in at least a portion of a region between a peripheral portion PP adjacent to the long side of the second vibration member 331 and a peripheral portion PP of the first vibration member 311 .

[0271] The coupling member 320 according to an exemplary embodiment of the present disclosure can be configured to enhance the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal range generated in the second sound generating unit 330. For example, the coupling member 320 can be configured to enhance the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal range generated based on the vibration of the second sound generating unit 330 or the second vibration member 331. For example, the coupling member 320 can be configured to increase or maximize the amount of displacement (or bending force) or amplitude displacement (or vibration width) of the second sound generating unit 330 or the second vibration member 331. For example, the coupling member 320 can be configured (or arranged) so that when the second vibration member 331 vibrates (or displaces) based on the vibration of the second vibration device 333, it does not hinder (or restrict) the vibration (or displacement) of the central portion of the second vibration member 331, including the center. For example, the coupling member 320 can be configured (or arranged) so that it does not hinder (or restrict) the vibration (or displacement) of the second vibration member 331 or the second vibration member 331 in the direction of the long side of the second sound generating unit 330. For example, the low-pitched vocal band may be 200 Hz or less, 300 Hz or less, or 400 Hz or less, but embodiments of the present disclosure are not limited thereto.

[0272] The coupling member 320 according to an exemplary embodiment of the present disclosure may be disposed (or interposed) between the peripheral portion (or short edge portion) of the second sound generating portion 330 adjacent to the short side and the first sound generating portion 310. For example, the coupling member 320 according to an exemplary embodiment of the present disclosure may be disposed (or interposed) between the peripheral portions (or short edge peripheral portions) PP1 and PP2 adjacent to the short side of the second vibration member 331 and the first vibration member 311. For example, the coupling member 320 may be disposed (or interposed) in the region between the two peripheral portions PP1 and PP2 adjacent to the short sides of the first and second vibration members 311 and 331. For example, the coupling member 320 may be disposed (or interposed) in the region between each of the first and second peripheral portions PP1 and PP2 adjacent to the short sides of the first and second vibration members 311 and 331. For example, the coupling member 320 may be disposed (or interposed) over the entire region (or without an air gap) between each of the first and second peripheral portions PP1 and PP2 of the first and second vibration members 311 and 331. For example, the coupling member 320 may be a material of a double short-side fixing structure of the second vibration member 331. For example, the coupling member 320 may be configured to have a double short-side fixing structure corresponding to (or relative to) the second vibration member 331. For example, the coupling member 320 may be a joint member, an edge coupling member, an edge joint member, a fixing member, or an edge fixing member, but embodiments of the present disclosure are not limited thereto.

[0273] The coupling member 320 according to an exemplary embodiment of the present disclosure may not be disposed (or interposed) between the peripheral portions PP3 and PP4 adjacent to the long sides (or long side peripheral portions) of the second sound generating portion 330 and the first sound generating portion 310. For example, the coupling member 320 according to an exemplary embodiment of the present disclosure may be disposed (or interposed) between the peripheral portions adjacent to the short sides (or short side peripheral portions) of the first sound generating portion 310 and the second sound generating portion 330. For example, the coupling member 320 according to an exemplary embodiment of the present disclosure may not be disposed (or interposed) between the peripheral portions PP3 and PP4 adjacent to the long sides (or long side peripheral portions) of the first vibration member 311 and the second vibration member 331. For example, the coupling member 320 may not be disposed (or interposed) between the two peripheral portions PP3 and PP4 adjacent to the long sides of the first vibration member 311 and the second vibration member 331. For example, the coupling member 320 may not be provided (or interposed) in a region between each of the third and fourth peripheral portions PP3 and PP4 of the first and second vibration members 311 and 331 adjacent to the long sides.

[0274] According to an exemplary embodiment of the present disclosure, an air gap AG may be provided in at least a portion of the region between the first sound generating portion 310 and the peripheral portion of the second sound generating portion 330 adjacent to the long sides. For example, the air gap AG may be provided in the region between the first vibration member 311 and each of the third and fourth peripheral portions PP3 and PP4 of the second vibration member 331. For example, the third and fourth peripheral portions PP3 and PP4 of the second vibration member 331 can vibrate (or displace) freely without being hindered (or constrained) by the coupling member 320 or the first vibration member 311 due to the air gap AG. Consequently, the amount of displacement (or bending force) or amplitude displacement (or vibration width) of the second vibration member 331 in the lengthwise direction of the long sides of the second vibration member 331 can be increased or maximized, thereby increasing (or enhancing) the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal range generated by the vibration of the second vibration member 331 based on the vibration (or displacement) of the second vibration device 333. For example, the second sound generating portion 330 or the second vibration member 331 may be configured to generate (or output) sound (or sound waves) of a low-pitched vocal range (or a first-pitched vocal range).

[0275] According to an exemplary embodiment of the present disclosure, the air gap AG may include a first air gap AG1 between the third peripheral portion PP3 of the first vibration member 311 and the second vibration member 331, which is adjacent to the first long side, and a second air gap AG2 between the fourth peripheral portion PP4 of the first vibration member 311 and the second vibration member 331, which is adjacent to the second long side. For example, the first air gap AG1 may be between the third peripheral portion PP3 of the first vibration member 311 and the second vibration member 331, except for the portion where the coupling member 320 is disposed. The second air gap AG2 may be between the fourth peripheral portion PP4 of the first vibration member 311 and the second vibration member 331, except for the portion where the coupling member 320 is disposed.

[0276] The coupling member 320 according to an exemplary embodiment of the present disclosure may include a first coupling member 321 and a second coupling member 322 .

[0277] The first coupling member 321 can be configured to couple the first vibration member 311 to a first peripheral portion of the second vibration member 331 adjacent to a first short side of the second vibration member 331. For example, the first coupling member 321 can be disposed (or interposed) in an area between a first peripheral portion (or first rear peripheral portion) PP1 of the second surface 331b of the second vibration member 331 and the first surface 311a of the first vibration member 311. For example, the first coupling member 321 can be disposed (or interposed) in the entire area between the first rear peripheral portion PP1 of the second vibration member 331 and the first surface 311a of the first vibration member 311. For example, the first coupling member 321 can be disposed (or interposed) over the entire area between the first rear peripheral portion PP1 of the second vibration member 331 and the first surface 311a of the first vibration member 311 (or without an air gap). Thus, the entire first rear peripheral portion PP1 of the second vibration member 331 can be coupled (or fixed) to the first surface 311a of the first vibration member 311 via the first coupling member 321. For example, the first coupling member 321 may be a first joint member, a first edge coupling member, a first edge joint member, a first fixing member, a first edge fixing member, a left edge coupling member, or a left edge fixing member, but embodiments of the present disclosure are not limited thereto.

[0278] The second coupling member 322 can be configured to couple the first vibration member 311 to a second peripheral portion of the second vibration member 331 adjacent to the second short side of the second vibration member 331. For example, the second coupling member 322 can be disposed (or interposed) in the region between the second peripheral portion (or second rear peripheral portion) PP2 of the second surface 331b of the second vibration member 331 and the first surface 311a of the first vibration member 311. For example, the second coupling member 322 can be disposed (or interposed) in the entire region between the second rear peripheral portion PP2 of the second vibration member 331 and the first surface 311a of the first vibration member 311. For example, the second coupling member 322 can be disposed (or interposed) over the entire region between the second rear peripheral portion PP2 of the second vibration member 331 and the first surface 311a of the first vibration member 311 (or without an air gap). Thus, the entire second rear peripheral portion PP2 of the second vibration member 331 can be coupled (or fixed) to the first surface 311a of the first vibration member 311 via the second coupling member 322. For example, the second coupling member 322 may be a second joint member, a second edge coupling member, a second edge joint member, a second fixing member, a second edge fixing member, a right edge coupling member, or a right edge fixing member, but embodiments of the present disclosure are not limited thereto.

[0279] The sound device according to an exemplary embodiment of the present disclosure may further include a connection member 350. For example, the connection member 350 may be provided along a rear peripheral portion of the first sound generating portion 310. Specifically, the connection member 350 may be provided along a rear peripheral portion of the first vibration member 311 of the first sound generating portion 310.

[0280] The connecting member 350 may be configured to enhance the sound characteristics and / or sound pressure level characteristics of the mid- and high-pitched vocal ranges generated in the first sound generating unit 310. For example, the connecting member 350 may be configured to enhance the sound characteristics and / or sound pressure level characteristics of the mid- and high-pitched vocal ranges generated based on the vibration of the first sound generating unit 310 or the first vibration member 311. For example, the mid-pitched vocal range may be a vocal range of 300 Hz or higher, 400 Hz or higher, or 500 Hz or higher, and the high-pitched vocal range may be a vocal range of 1 kHz or higher, 2 kHz or higher, or 3 kHz or higher, but embodiments of the present disclosure are not limited thereto.

[0281] According to an exemplary embodiment of the present disclosure, the connection member 350 may be configured to reduce or limit the displacement amount (or bending force) or displacement amplitude (or vibration width) of the first sound generating part 310 (or the first vibration member 311). For example, when the first vibration member 311 vibrates (or displaces) based on the vibration (or displacement) of the first vibration device 313, the connection member 350 may be configured (or provided) to constrain or limit the vibration of the peripheral portion PP of the first sound generating part 310 (or the first vibration member 311) except for the middle portion MP including the center of the first sound generating part 310 (or the first vibration member 311). For example, the connecting member 350 may be configured (or arranged) to constrain or limit the vibration (or displacement) of the first sound generating portion 310 (or the first vibration member 311) in the short-side length direction and the long-side length direction, thereby increasing (or enhancing) the sound characteristics and / or sound pressure level characteristics of the mid- and high-pitched vocal cords generated by the vibration (or displacement) of the first vibration member 311 based on the vibration (or displacement) of the first vibration device 313. Therefore, the first sound generating portion 310 (or the first vibration member 311) may be configured to generate (or output) sounds (or sound waves) of the mid- and high-pitched vocal cords (or the second-pitched vocal cords).

[0282] The connecting member 350 may be configured to have a relatively smaller size (or area) than the first sound generating unit 310 (or the first vibration member 311), but embodiments of the present disclosure are not limited thereto. For example, the total size (or total area) of the connecting member 350 may be configured to have a relatively smaller size (or total area) than the total size (or total area) of the first sound generating unit 310 (or the first vibration member 311), but embodiments of the present disclosure are not limited thereto.

[0283] The connection member 350 according to an exemplary embodiment of the present disclosure can be disposed at (or connected to) a portion of the first sound generating portion 310 (or first vibration member 311). For example, the connection member 350 can be disposed along (or connected to) a peripheral portion PP of the second surface 311b of the first vibration member 311. The connection member 350 can be disposed at (or connected to) the second surface 311b of the first vibration member 311 so as to overlap with the coupling member 320. For example, the connection member 350 can be disposed at (or connected to) a peripheral portion PP of the first vibration member 311 excluding the middle portion MP. For example, the connection member 350 can be disposed at (or connected to) the second surface 311b of the first vibration member 311 so as not to overlap with the first vibration device 313 of the first sound generating portion 310. For example, the connection member 350 can be configured to include a hollow portion that overlaps with the first vibration device 313. For example, the connection member 350 may be configured to include a frame shape having a hole (or hollow portion) 350 o overlapping the first vibration device 313 , but embodiments of the present disclosure are not limited thereto.

[0284] According to another exemplary embodiment of the present disclosure, the connecting member 350 may include first to fourth connecting members (or split connecting members or partial connecting members) respectively arranged at (or connected to) the first peripheral portion PP1 to the fourth peripheral portion PP4 in the second surface 311b of the first vibration device 313. For example, when the connecting member 350 is configured with the first to fourth connecting members, the connecting member 350 can be easily attached to or equipped in the first vibration member 311. For example, the connecting member 350 can be a four-sided fixed structural material of the first vibration member 311. For example, the connecting member 350 can be configured to have a four-sided fixed structure corresponding to (or relative to) the first vibration member 311. For example, the connecting member 350 can be arranged on four sides of the first vibration member 311.

[0285] According to another exemplary embodiment of the present disclosure, the connecting member 350 may be configured as a rigid material (or hard material), but the embodiments of the present disclosure are not limited thereto. The connecting member 350 may have high elasticity (or Young's modulus) and may include a material with high tensile strength. For example, the connecting member 350 may be rubber, but the embodiments of the present disclosure are not limited thereto. For example, the rubber may be ethylene propylene diene monomer (EPDM), but the embodiments of the present disclosure are not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the embodiments of the present disclosure are not limited thereto. For example, the tensile strength of EPDM may be 50 kg / cm 2Up to 200kg / cm 2 , but the embodiments of the present disclosure are not limited thereto.

[0286] According to an exemplary embodiment of the present disclosure, the connection member 350 may be protected by a release film (or protective film). The release film may be attached to the adhesive surface of the connection member 350. When the sound device 30 including the connection member 350 is mounted on a vehicle interior material (or mounting object), the release film may be peeled off (or removed) from the connection member 350.

[0287] The sound device 30 according to an exemplary embodiment of the present disclosure may include a coupling member 320 partially disposed between the first sound generating portion 310 and the second sound generating portion 330, thereby enhancing (or strengthening) the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal range. The sound device 30 according to an exemplary embodiment of the present disclosure may also include a connecting member 350 disposed at the rear periphery of the first sound generating portion 310, thereby enhancing (or strengthening) the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal range and the mid-to-high-pitched vocal range. Furthermore, the sound device 30 according to an exemplary embodiment of the present disclosure may include the first sound generating portion 310 and the second sound generating portion 330 having a bimorph structure, thereby enhancing the sound characteristics and / or sound pressure level characteristics of sounds including the low-pitched vocal range. Therefore, based on the stacked structure of the first sound generating portion 310 and the second sound generating portion 330, the sound device 30 according to an exemplary embodiment of the present disclosure may have a wide sound reproduction band.

[0288] The sound device 30 according to another exemplary embodiment of the present disclosure can be configured to output sound based on the vibration of one of the first sound generating section 310 and the second sound generating section 330. Depending on whether to output sound with a relatively high sound pressure level in the mid- and high-pitched vocal range or the low-pitched vocal range, the sound device 30 according to another exemplary embodiment of the present disclosure can be configured to output sound based on the vibration of one of the first sound generating section 310 and the second sound generating section 330. For example, if it is desired to output sound with a relatively high sound pressure level in the mid- and high-pitched vocal range, the sound device 30 can be configured to output sound with enhanced sound pressure level characteristics for the mid- and high-pitched vocal range based only on the vibration of the first sound generating section 310 of the first and second sound generating sections 310. For example, if it is desired to output sound with a relatively high sound pressure level in the low-pitched vocal range, the sound device 30 can be configured to output sound with enhanced sound pressure level characteristics for the low-pitched vocal range based only on the vibration of the second sound generating section 330 of the first and second sound generating sections 310 and 330.

[0289] Figure 7is a perspective view illustrating a sound device according to another exemplary embodiment of the present disclosure. Figure 8 According to an exemplary embodiment of the present disclosure Figure 7 The cross-sectional view taken along line III-III' is shown. For example, Figure 7 and Figure 8 Shown in the reference above Figures 3 to 6 The exemplary embodiment of the sound device 30 described above is further configured with a cover. Therefore, in the following description, the cover will be described in detail, and the other elements can be the same as those described above. Figures 3 to 6 The descriptions of the above referenced parts are the same or substantially the same, and therefore, the same reference numerals refer to the same elements, and their repeated descriptions are omitted or will be briefly given below. Figures 3 to 6 The description can be included in Figure 7 and Figure 8 's description.

[0290] refer to Figure 7 and Figure 8 , the sound device 30 according to another exemplary embodiment of the present disclosure may further include a cover 360 .

[0291] The cover 360 may be configured to protect the second sound generating unit 330. For example, the cover 360 may be configured to cover the second sound generating unit 330. For example, the cover 360 may be configured to cover or surround the first surface of the second sound generating unit 330. For example, the cover 360 may constitute an enclosed space that covers or surrounds the first surface of the second sound generating unit 330. For example, the cover 360 may be a front housing, a closing member (or sealing member), a closing cap, a closing box, or a speaker box, but embodiments of the present disclosure are not limited thereto.

[0292] The cover 360 may be configured to be connected or coupled to the peripheral portion (or edge portion) PP of the second vibration member 331 of the second sound generating portion 330. For example, the cover 360 may be configured to have the same shape and the same size as the second vibration member 331, but embodiments of the present disclosure are not limited thereto. For example, the cover 360 may have a rectangular shape having long sides and short sides, but embodiments of the present disclosure are not limited thereto.

[0293] The cover 360 according to an exemplary embodiment of the present disclosure may include a cover plate 361 and a cover sidewall portion 363 .

[0294] The cover plate 361 may be configured (or provided) to be spaced apart from the second sound generating portion 330. For example, the cover plate 361 may be configured (or provided) to be spaced apart from the second vibration member 331 of the second sound generating portion 330. The cover plate 361 may be configured (or provided) to be spaced apart from the second vibration member 331 and the second vibration device 333. The cover plate 361 may be configured (or provided) to cover the second vibration member 331 and the second vibration device 333. For example, the cover plate 361 may include a flat plate structure having long sides and short sides, but embodiments of the present disclosure are not limited thereto.

[0295] The cover sidewall portion 363 may be arranged (or positioned) along the peripheral portion (or edge portion) PP of the cover plate 361. The cover sidewall portion 363 may be vertically connected to the peripheral portion PP of the cover plate 361. For example, the cover sidewall portion 363 may be arranged (or positioned) to surround the side surface of the second vibration device 333.

[0296] The cover 360 according to an exemplary embodiment of the present disclosure can constantly maintain an impedance component based on the air acting on the second vibration member 331 when the second sound generating portion 330 or the second vibration member 331 vibrates. For example, the air surrounding the second vibration member 331 can resist the vibration of the second vibration member 331 and can act as an impedance component having a frequency-dependent reactance component and a resistance. Therefore, the cover 360 can configure an enclosed space around the third vibration generator 333a in the first surface 331a of the second vibration member 331, thereby maintaining an impedance component (or air impedance or elastic impedance) based on the air acting on the second vibration member 331, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords and enhancing the sound quality of the high-pitched vocal cords.

[0297] The sound apparatus 30 according to another exemplary embodiment of the present disclosure may further include an attachment member (or a first attachment member) 365 .

[0298] The attachment member 365 may be located between the cover 360 and the second sound generating unit 330. For example, the attachment member 365 may be located between the cover sidewall portion 363 of the cover 360 and the second vibration member 331 of the second sound generating unit 330, but is not limited thereto. The attachment member 365 may be located between the cover 360 and the second vibration member 331. For example, the attachment member 365 may be connected or coupled between the peripheral portion PP of the cover 360 and the peripheral portion (or edge portion) PP of the first surface 331a of the second vibration member 331. For example, the attachment member 365 may be connected or coupled between the cover sidewall portion 363 of the cover 360 and the peripheral portion PP of the first surface 331a of the second vibration member 331. For example, the cover sidewall portion 363 of the cover 360 may be connected or coupled to the peripheral portion PP of the first surface 331a of the second vibration member 331 via the attachment member 365.

[0299] The attachment member 365 according to an exemplary embodiment of the present disclosure can be configured to reduce or minimize the transmission of vibrations of the second vibration member 331 to the cover 360 (or the cover sidewall portion 363). The attachment member 365 may include material properties suitable for blocking vibrations. For example, the attachment member 365 may include a material having elasticity, but embodiments of the present disclosure are not limited thereto. For example, the attachment member 365 may include a material having elasticity for vibration absorption (or shock absorption), but embodiments of the present disclosure are not limited thereto.

[0300] Figure 9 is a perspective view illustrating a sound device according to another exemplary embodiment of the present disclosure. Figure 10 is an exploded perspective view of a sound device according to another exemplary embodiment of the present disclosure. Figure 11 According to an exemplary embodiment of the present disclosure Figure 9 A cross-sectional view taken along line IV-IV' is shown. Figure 12 According to an exemplary embodiment of the present disclosure Figure 9 The cross-sectional view taken along the line V-V' is shown. For example, Figures 9 to 12 Shown by modifying the above reference Figures 3 to 6 Therefore, in the following description, the first sound generating unit will be described in detail, and the other elements may be the same as those described above. Figures 3 to 6 The descriptions of the above referenced parts are the same or substantially the same, and therefore, the same reference numerals refer to the same elements, and their repeated descriptions are omitted or will be briefly given below. Figures 3 to 6 The description can be included in Figures 9 to 12 's description.

[0301] refer to Figures 9 to 12In the sound device 30 according to another exemplary embodiment of the present disclosure, the size of the first sound generating unit 310 may be larger than the size of the second sound generating unit 330, but the embodiments of the present disclosure are not limited thereto. For example, the shape of the first sound generating unit 310 may be different from the shape of the second sound generating unit 330, and the size of the first sound generating unit 310 may be larger than the size of the second sound generating unit 330, but the embodiments of the present disclosure are not limited thereto. For example, the first sound generating unit 310 may have a square shape that is larger than the second sound generating unit 330, or the first sound generating unit 310 may have a rectangular shape with long and short sides that are larger than the long and short sides of the second sound generating unit 330, but the embodiments of the present disclosure are not limited thereto.

[0302] According to another exemplary embodiment of the present disclosure, the first sound generating portion 310 may include a first vibration member 311 and a first vibration device 313. For example, the first vibration member 311 may generate vibration or output sound (or sound wave or sound pressure level) based on driving (or vibration or displacement) of the first vibration device 313.

[0303] The first vibration member 311 may include a quadrilateral shape, but the embodiments of the present disclosure are not limited thereto. For example, the first vibration member 311 may include a rectangular shape having longer and shorter sides than the second vibration member 331 of the second sound generating portion 330, or may have a square shape larger than the second vibration member 331, but the embodiments of the present disclosure are not limited thereto. For example, except for the shape and size, the first vibration member 311 may be similar to the above referenced Figures 3 to 6 The first vibration member 311 described is substantially the same, and thus repeated description thereof is omitted.

[0304] The first vibration device 313 may be configured to vibrate the first vibration member 311. The first vibration device 313 may be disposed (or configured) in the first vibration member 311 in a direction different from that of the second vibration device 333 of the second sound generating portion 330. For example, the first vibration device 313 may be the same as that described above with reference to FIG. 1 , except that the first vibration device 313 is disposed (or configured) in the first vibration member 311 in a direction different from that of the second vibration device 333 of the second sound generating portion 330. Figures 3 to 6 The first vibration device 313 is the same or substantially the same as described.

[0305] According to another exemplary embodiment of the present disclosure, the first vibration device 313 can be configured (or arranged) to enhance the sound characteristics and / or sound pressure level characteristics of the low-mid pitch vocal range generated in the sound device 30. For example, the long side length direction LD1 of the first vibration device 313 can be different from the long side length direction LD2 of the second vibration device 333. For example, in the same plane, the long side length direction LD1 of the first vibration device 313 can be rotated (or tilted) from the long side length direction LD2 of the second vibration device 333. For example, in the same plane, the long side length direction LD1 of the first vibration device 313 can be rotated (or tilted) at an acute angle to the long side length direction LD2 of the second vibration device 333. For example, the long side length direction LD1 of the first vibration device 313 can intersect with the long side length direction LD2 of the second vibration device 333.

[0306] According to an exemplary embodiment of the present disclosure, the intersection angle between the long side length direction LD1 of the first vibration device 313 and the long side length direction LD2 of the second vibration device 333 may be an acute angle, but the present disclosure is not limited thereto. For example, in the same plane, the intersection angle between the long side length direction LD1 of the first vibration device 313 and the long side length direction LD2 of the second vibration device 333 may be an acute angle, but the present disclosure is not limited thereto.

[0307] In an exemplary embodiment of the present disclosure, the angle between the long side length direction LD1 of the first vibration device 313 and the long side length direction LD2 of the second vibration device 333 may be, for example, but not limited to, 90 degrees, but the present disclosure is not limited thereto. For example, in the same plane, the angle between the long side length direction LD1 of the first vibration device 313 and the long side length direction LD2 of the second vibration device 333 may be, for example, but not limited to, 90 degrees, but the present disclosure is not limited thereto.

[0308] In another exemplary embodiment of the present disclosure, Figure 13 and Figure 14 As shown, the angle between the long side length direction LD1 of the first vibration device 313 and the long side length direction LD2 of the second vibration device 333 can be, for example, but not limited to, 45 degrees, but embodiments of the present disclosure are not limited thereto. For example, in the same plane, the angle between the long side length direction LD1 of the first vibration device 313 and the long side length direction LD2 of the second vibration device 333 can be, for example, but not limited to, 45 degrees, but embodiments of the present disclosure are not limited thereto.

[0309] According to another exemplary embodiment of the present disclosure, since the first vibration device 313 and the second vibration device 333 are arranged (or configured) in different directions, the vibration area (or vibration amplitude) is smaller than that in the above reference embodiment. Figures 3 to 6The described sound devices 30 may be increased, and therefore, the sound characteristics and / or sound pressure level characteristics of the middle and low-pitched vocal ranges generated in the sound devices 30 may be more enhanced (or increased).

[0310] The above reference Figures 9 to 14 The described sound device 30 may also include the above reference Figure 7 and Figure 8 Therefore, the repeated description thereof will be omitted or briefly given. Figure 7 and Figure 8 The description of the cover 360 may be included in Figures 9 to 14 In the description of the sound device 30 shown.

[0311] Figure 15 is a perspective view illustrating a sound device according to another exemplary embodiment of the present disclosure. Figure 16 is an exploded perspective view of a sound device according to another exemplary embodiment of the present disclosure. Figure 17 According to an exemplary embodiment of the present disclosure Figure 15 A cross-sectional view taken along line VI-VI' is shown. Figure 18 According to an exemplary embodiment of the present disclosure Figure 15 The cross-sectional view taken along line VII-VII' is shown. For example, Figures 15 to 18 Shown in the reference above Figures 3 to 6 Therefore, in the following description, the housing will be described in detail, and the other elements may be the same as those described above. Figures 3 to 6 The descriptions of the above referenced parts are the same or substantially the same, and therefore, the same reference numerals refer to the same elements, and their repeated descriptions are omitted or will be briefly given below. Figures 3 to 6 The description can be included in Figures 15 to 18 's description.

[0312] refer to Figures 15 to 18 , the sound device 30 according to another exemplary embodiment of the present disclosure may further include a housing 370 .

[0313] The shell 370 may be provided at the periphery of the first sound generating part 310. The shell 370 may be configured (or provided) at the second surface of the first sound generating part 310. The shell 370 may be configured to support the second surface of the first sound generating part 310. For example, the shell 370 may be configured to cover or surround the second surface of the first sound generating part 310. The shell 370 may be configured to cover or surround a peripheral portion PP of the second surface of the first sound generating part 310. For example, the shell 370 may be configured to support the peripheral portion PP of the first sound generating part 310, but is not limited thereto. For example, the shell 370 may be configured to connect or couple to the peripheral portion PP of the second surface of the first sound generating part 310.

[0314] The housing 370 may be configured to be connected or coupled to the first vibration member 311 of the first sound generating portion 310. For example, the housing 370 may be configured to be connected or coupled to a peripheral portion PP of the first vibration member 311. For example, the housing 370 may be configured to be connected or coupled to a peripheral portion PP of the second surface 311b of the first vibration member 311.

[0315] The housing 370 may be configured to include an interior space 370s. For example, the interior space 370s of the housing 370 may be disposed between the second surface of the first sound generating unit 310 and the housing 370. For example, the interior space 370s of the housing 370 may be disposed between the second surface 311b of the first vibration member 311 and the housing 370. For example, the interior space 370s of the housing 370 may be disposed to surround the first vibration device 313. For example, the first sound generating unit 310 or the first vibration member 311 may be disposed to cover the interior space 370s of the housing 370.

[0316] The housing 370 may have a rectangular shape with long and short sides, but embodiments of the present disclosure are not limited thereto. For example, the housing 370 may have the same shape and the same size as the first sound generating unit 310 or the first vibration member 311, but embodiments of the present disclosure are not limited thereto. For example, the housing 370 may be a support member, a box, a support box, a box member, a housing, a housing member, or a rear housing, but embodiments of the present disclosure are not limited thereto.

[0317] The housing 370 according to an exemplary embodiment of the present disclosure may include a plate 371 and a sidewall 373. The sidewall 373 may be connected to the plate 371 to form an inner space.

[0318] The plate 371 may be configured (or arranged) to be spaced apart from the first sound generating portion 310. For example, the plate 371 may be configured (or arranged) to be spaced apart from the first vibration member 311 of the first sound generating portion 310. The plate 371 may be configured (or arranged) to be spaced apart from the first vibration member 311 and the first vibration device 313. In addition, it may be configured (or arranged) to be spaced apart from the first vibration device 313 of the first sound generating portion 310. The plate 371 may be configured (or arranged) to cover the first vibration member 311 and the first vibration device 313. For example, the plate 371 may include a flat plate structure having long sides and short sides, but embodiments of the present disclosure are not limited thereto. For example, the plate 371 may be a substrate or a housing plate, but embodiments of the present disclosure are not limited thereto.

[0319] The sidewall 373 may be configured (or arranged) along the peripheral portion (or edge portion) PP of the plate 371. For example, the sidewall 373 may be vertically connected to the peripheral portion PP of the plate 371. For example, the sidewall 373 may be configured (or arranged) to surround the side surface of the first vibration device 313. The sidewall 373 according to the exemplary embodiment of the present disclosure may have the same width as the width of the coupling member 320 relative to the long side length direction of the first vibration member 311, but the embodiments of the present disclosure are not limited thereto. For example, the sidewall 373 may be a frame, a sidewall frame, a housing sidewall, or a housing sidewall frame, but the embodiments of the present disclosure are not limited thereto.

[0320] The side wall 373 may be configured (or provided) to provide an internal space 370s between the first sound generating portion 310 and the plate 371. For example, the side wall 373 may be configured (or provided) to provide an internal space 370s between the first vibration member 311 of the first sound generating portion 310 and the plate 371. For example, the internal space 370s may be a receiving space, a storage space, a gap space, a gas space, a vibration space, a sound space, a sound box, or a closed space (or sealed space), etc., but embodiments of the present disclosure are not limited thereto.

[0321] According to another exemplary embodiment of the present disclosure, the first sound generating unit 310 can generate sound (or sound pressure level or sound wave) in the internal space 370s of the housing 370. For example, the first vibration member 311 can generate sound (or sound pressure level or sound wave) in the internal space 370s of the housing 370 based on the driving (or vibration or displacement) of the first vibration device 313. Therefore, the housing 370 (or the plate 371 of the housing 370) can vibrate based on the sound (or sound pressure level or sound wave) generated in the internal space 370s to generate (or output) sound (or sound pressure level or sound wave) based on the vibration of the first sound generating unit 310 (or the first vibration member 311).

[0322] The sound apparatus 30 according to another exemplary embodiment of the present disclosure may further include an intermediate coupling member 375 .

[0323] The intermediate coupling member 375 may be located between the housing 370 and the first sound generating portion 310. The intermediate coupling member 375 may be located between the housing 370 and the first vibration member 311. For example, the intermediate coupling member 375 may be located between the sidewall of the housing 370 and the first vibration member 311. For example, the intermediate coupling member 375 may be connected or coupled between the peripheral portion (or edge portion) PP of the housing 370 and the peripheral portion PP of the second surface 311b of the first vibration member 311. For example, the intermediate coupling member 375 may be connected or coupled between the sidewall 373 of the housing 370 and the peripheral portion PP of the second surface 311b of the first vibration member 311. For example, the sidewall 373 of the housing 370 may be connected or coupled to the peripheral portion PP of the second surface 311b of the first vibration member 311 via the intermediate coupling member 375. For example, the intermediate coupling member 375 may be a second attachment member, a second connection member, an intermediate attachment member, or an intermediate connection member, but embodiments of the present disclosure are not limited thereto.

[0324] The intermediate coupling member 375 according to the exemplary embodiment of the present disclosure can transmit the vibration of the first sound generating part 310 or the first vibration member 311 to the housing 370. Therefore, the housing 370 can further vibrate to generate sound (or sound pressure level or sound wave) based on the vibration of the first sound generating part 310 or the first vibration member 311 transmitted through the intermediate coupling member 375. For example, the plate 371 of the housing 370 can vibrate based on the sound (or sound pressure level or sound wave) generated in the internal space 370s by the vibration of the first vibration member 311 and the vibration transmitted through the intermediate coupling member 375 to generate (or output) sound (or sound pressure level or sound wave).

[0325] The intermediate coupling member 375 may be made of a relatively rigid material (or hard material), but the embodiments of the present disclosure are not limited thereto. For example, when the intermediate coupling member 375 is made of a relatively rigid material (or hard material), the vibration of the first sound generating unit 310 or the first vibration member 311 may be more efficiently transmitted to the housing 370.

[0326] The intermediate connecting member 375 according to an exemplary embodiment of the present disclosure may have high elasticity (or Young's modulus) and may include a material with high tensile strength, but the embodiments of the present disclosure are not limited thereto. For example, the intermediate connecting member 375 may be rubber, but the embodiments of the present disclosure are not limited thereto. For example, the rubber may be ethylene propylene rubber or polyurethane rubber, but the embodiments of the present disclosure are not limited thereto. For example, the ethylene propylene rubber may be ethylene propylene diene monomer (EPDM), but the embodiments of the present disclosure are not limited thereto. For example, the hardness of EPDM may be 40 to 90, but the embodiments of the present disclosure are not limited thereto. For example, the tensile strength of EPDM may be 50 kg / cm 2 Up to 200kg / cm 2 , but the embodiments of the present disclosure are not limited thereto.

[0327] In the sound device 30 according to another exemplary embodiment of the present disclosure, the connecting member 350 may be provided (or inserted) or configured in the shell 370 (or the plate 371 of the shell 370). For example, the shell 370 may be provided (or inserted) or configured between the first sound generating portion 310 and the connecting member 350. For example, the connecting member 350 may be provided (or inserted) or configured along the rear peripheral portion (or rear edge portion) PP of the plate 371. For example, the connecting member 350 may be connected or coupled to the rear peripheral portion PP of the plate 371. The connecting member 350 may be configured to include a frame shape having a hole (or hollow portion) 350o overlapping with the first vibration device 313, but the embodiments of the present disclosure are not limited thereto. For example, in addition to the connecting member 350 being provided (or inserted) in the shell 370 (or the plate 371 of the shell 370) or connected to the shell 370 (or the plate 371 of the shell 370), the connecting member 350 may be provided with respect to the above reference Figures 3 to 7 The connection members of the described connection member 350 are the same or substantially the same, and thus, repeated description thereof is omitted.

[0328] The sound device 30 or the housing 370 according to the exemplary embodiment of the present disclosure may further include an opening portion 370 o. As an example, the opening portion 370 o may be connected to the internal space 370 s and overlap with the first vibration device 313.

[0329] The opening portion 370o can be configured at the housing 370 to overlap with the first vibration device 313 of the first sound generating unit 310. The opening portion 370o can be configured at the plate 371 of the housing 370 to overlap with the first vibration device 313 with respect to the thickness direction Z (or vertical direction) of the sound device 30. The opening portion 370o can be configured to pass through (or vertically pass through) the plate 371 along the thickness direction Z (or vertical direction) of the housing 370. For example, the opening portion 370o can face or directly face the first surface of the first sound generating unit 310 or the first vibration device 313. In the housing 370, the opening portion 370o can be connected to the internal space 370s (or communicate with the internal space 370s).

[0330] The opening 370o can be configured to reduce the air pressure of the internal space 370s of the housing 370. For example, the opening 370o can be configured to reduce the air pressure of the internal space 370s disposed between the first vibration member 311 and the housing 370. Thus, the frequency band of the low-pitched vocal range can be expanded, thereby improving the sound characteristics of the low-pitched vocal range. For example, since the pressure (or air pressure) of the internal space 370s of the housing 370 is reduced by the opening 370o, the displacement (or bending force) of the first vibration member 311 can be increased, thereby expanding the frequency band of the low-pitched vocal range, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal range. Therefore, the sound (or sound pressure level) of the low-pitched vocal range generated by the vibration (or displacement) of the first vibration member 311 based on the drive (or vibration or displacement) of the first vibration device 313 can be further improved.

[0331] According to an exemplary embodiment of the present disclosure, the opening 370o can be positioned to correspond to the center of the first sound generating unit 310. For example, the opening 370o can be positioned to correspond to the center of the first vibration device 313. For example, the opening 370o can include a short axis and a long axis. For example, the opening 370o can include a linear shape passing through the center of the first sound generating unit 310 (or the first vibration device 313), or can include a rectangular shape, but embodiments of the present disclosure are not limited thereto. For example, the opening 370o can include a linear shape passing through the center of the first vibration device 313 of the first sound generating unit 310, but is not limited thereto. For example, the opening 370o can include a width (or a short axis length) parallel to the short side length direction (or the second direction Y) of the housing 370, and a length (or a long axis length) parallel to the long side length direction (or the first direction X) of the housing 370. For example, the length of the opening 370o can be less than the length (or the long side length) of the first vibration device 313, but embodiments of the present disclosure are not limited thereto. For example, the opening portion 370o may be a hole, a slot, or a slit, but embodiments of the present disclosure are not limited thereto. For example, the opening portion 370o may be a sound emitting portion, a sound emitting port, a sound output portion, a sound output port, a sound output hole, a duct hole, or a vent hole, but embodiments of the present disclosure are not limited thereto.

[0332] The opening 370o may be a space through which sound (or sound waves) generated in the interior space 370s of the housing 370 based on the vibration of the first sound generating unit 310 is output to the exterior space of the housing 370 (e.g., the interior space of the vehicle). For example, vibration or sound generated by the vibration (or displacement) of the first vibration member 311 based on the vibration of the first sound generating unit 310 may be output (or emitted) into the interior space of the vehicle through the opening 370o.

[0333] The housing 370 may further include a slope (or inclined surface) 371s. The slope 371s may be configured to be inclined between the inner side surface (or inner bottom surface) of the housing 370 (or plate 371) and the opening portion 370o. The slope 371s may be configured to guide the output of the sound generated based on the vibration of the first sound generating unit 310. For example, the sound generated based on the vibration of the first sound generating unit 310 may be output to the interior space of the vehicle, thereby further enhancing the sound characteristics and / or sound pressure level characteristics of the sound including the low-pitched vocal range. For example, the slope 371s may be a guide surface or a sound guiding surface, but the embodiments of the present disclosure are not limited thereto.

[0334] The above reference Figures 15 to 18 The described sound device 30 may also include the above reference Figure 7 and Figure 8Therefore, the repeated description thereof will be omitted or briefly given. Figure 7 and Figure 8 The description of the cover 360 may be included in Figures 15 to 18 In the description of the sound device 30 shown.

[0335] Figure 19 is a diagram illustrating a sound device according to another exemplary embodiment of the present disclosure. Figure 20 According to an exemplary embodiment of the present disclosure Figure 19 A cross-sectional view taken along line VIII-VIII' is shown.

[0336] refer to Figure 19 and Figure 20 , the sound device 30 according to another exemplary embodiment of the present disclosure may be connected or coupled to (or mounted on) the vehicle interior material (or installation object) 130 by using a connecting member 350 .

[0337] The sound device 30 may include a first sound generating part 310, a second sound generating part 330, and a coupling member 320. The description of the first sound generating part 310, the second sound generating part 330, and the coupling member 320 may be the same as that described above with reference to FIG. Figures 3 to 6 The descriptions are substantially the same, and thus, the same reference numerals refer to the same elements, and repeated descriptions thereof will be omitted or will be briefly given below.

[0338] The vehicle interior material 130 may be connected or coupled to the connection member 350 in the sound device 30. For example, the vehicle interior material 130 may be connected or coupled to the housing 370 via the connection member 350. The connection member 350 may be disposed between the vehicle interior material 130 and the first sound generating unit 310. For example, the connection member 350 may be disposed between the first vibration member 311 of the first sound generating unit 310 and the vehicle interior material 130.

[0339] According to an exemplary embodiment of the present disclosure, the vehicle interior material 130 may further include one or more holes 135. As an example, the one or more holes 135 may be provided in the vehicle interior material 130, but is not limited thereto.

[0340] The one or more holes 135 may correspond to (or overlap) the first vibration device 313 of the first sound generating portion 310. For example, the one or more holes 135 may be a through hole, an opening, an open hole, a slit, a slot, a sound hole, a sound emission hole, or a sound output hole, but embodiments of the present disclosure are not limited thereto.

[0341] According to an exemplary embodiment of the present disclosure, the sound based on the vibrations of the first sound generating portion 310 and the second sound generating portion 330 may be output to the interior space of the vehicle through the vehicle interior material 130. For example, the sound based on the vibrations of the first sound generating portion 310 and the second sound generating portion 330 may be output to the interior space of the vehicle through one or more holes 135 provided in the vehicle interior material 130.

[0342] The connecting member 350 can provide a gap space GS between the vehicle interior material 130 and the first sound generating portion 310 (or the middle portion MP of the first vibration device 313). The vehicle interior material 130 can be connected or coupled to the connecting member 350 and can be spaced apart from the first sound generating portion 310 (or the first vibration device 313). For example, one or more holes 135 in the vehicle interior material 130 can be spaced apart from the rear surface of the first sound generating portion 310 (or the first vibration device 313). For example, the rear surface of the first sound generating portion 310 (or the first vibration device 313) can face or directly face the vehicle interior material 130, with the gap space GS therebetween.

[0343] According to an exemplary embodiment of the present disclosure, the connecting member 350 is configured with a relatively rigid material (or hard material), and thus can transmit the vibrations of the first sound generating unit 310 and the second sound generating unit 330 to the vehicle interior material 130. For example, the vibration of the second vibration member 331 based on the vibration of the second vibration device 333 of the second sound generating unit 330 can be transmitted to the vehicle interior material 130 via the coupling member 320, the first vibration member 311 of the first sound generating unit 310, and the connecting member 350. Furthermore, the vibration of the first vibration member 311 based on the vibration of the first vibration device 313 of the first sound generating unit 310 can be transmitted to the vehicle interior material 130 via the connecting member 350. Therefore, the vehicle interior material 130 can vibrate based on the vibrations transmitted through the connecting member 350 to generate sound. For example, when the connecting member 350 is configured with a relatively rigid material (or hard material), the vehicle interior material 130 connected to the connecting member 350 can be a vibration plate for generating (or outputting) sound. For example, when the connection member 350 is configured with a relatively rigid material (or hard material), the vibration of the first vibration member 311 and the vibration of the second vibration member 331 may be more efficiently transferred to the vehicle interior material 130 .

[0344] The sound device 30 according to another exemplary embodiment of the present disclosure can output sound (or sound waves) generated based on the vibration of each of the stacked first sound generating section 310 and the second sound generating section 330 to the interior space of the vehicle through one or more holes 135 in the vehicle interior material 130, and at the same time, can output sound generated by the vibration of the vehicle interior material 130 based on the vibration of each of the stacked first sound generating section 310 and the second sound generating section 330 to the interior space of the vehicle. Therefore, based on the stacked structure of the first sound generating section 310 and the second sound generating section 330, the sound device 30 according to another exemplary embodiment of the present disclosure can have a wide sound reproduction band.

[0345] The above reference Figure 19 and Figure 20 The sound device 30 described above may be replaced by (or modified to) Figures 9 to 14 The sound device 30 described, such as Figure 21 Therefore, the repeated description thereof is omitted or briefly given. Figure 21 , reference above Figures 9 to 14 The described sound device 30 may be connected or coupled to (or mounted on) the vehicle interior material (or installation object) 130 by using the connection member 350 , and thus, a repeated description thereof is omitted.

[0346] The above reference Figure 19 and Figure 20 The sound device 30 described above may be replaced by (or modified to) Figures 15 to 18 The sound device 30 described, such as Figure 22 As shown, therefore, its repeated description is omitted or briefly given.

[0347] refer to Figure 22 , reference above Figures 15 to 18 The described sound device 30 may be connected or coupled to (or mounted on) the vehicle interior material (or installation object) 130 by using the connection member 350 , and therefore, a repeated description thereof is omitted or briefly given.

[0348] One or more holes 135 in the vehicle interior material 130 may correspond to (or overlap) the opening portion 370o of the housing 370. For example, one or more holes 135 may have a size greater than or equal to the size of the opening portion 370o, but embodiments of the present disclosure are not limited thereto. For example, one or more holes 135 may be a through hole, an opening portion, an open hole, a slit, a slot, a sound hole, a sound emission hole, or a sound output hole, but embodiments of the present disclosure are not limited thereto.

[0349] The sound device 30 according to another exemplary embodiment of the present disclosure can output the sound (or sound waves) generated in the interior space 370s of the housing 370 based on the vibration of each of the stacked first and second sound generating parts 310 and 330 to the interior space of the vehicle through the opening portion 370o of the housing 370 and the one or more holes 135 of the vehicle interior material 130. At the same time, the sound generated based on the vibration of each of the stacked first and second sound generating parts 310 and 330 and the vibration of the housing 370 of the vehicle interior material 130 can be output to the interior space of the vehicle. Therefore, based on the stacked structure of the first and second sound generating parts 310 and 330, the sound device 30 according to another exemplary embodiment of the present disclosure can have a wide sound reproduction band.

[0350] The above reference Figures 19 to 22 The described sound device 30 may also include the above reference Figure 7 and Figure 8 Therefore, the repeated description thereof will be omitted or briefly given. Figure 7 and Figure 8 The description of the cover 360 may be included in Figures 19 to 22 In the description of the sound device 30 shown.

[0351] Figure 23 is a cross-sectional view illustrating a sound apparatus according to another exemplary embodiment of the present disclosure. Figure 24 is a diagram showing an exemplary embodiment according to the present disclosure Figure 23 A perspective view of the housing is shown. Figure 23 and Figure 24 Shown in the reference above Figure 22 An exemplary embodiment of the sound device 30 is described in which the housing is additionally provided with a protrusion.

[0352] refer to Figure 23 and Figure 24 The sound device 30 according to another exemplary embodiment of the present disclosure may include a first sound generating part 310, a second sound generating part 330, a coupling member 320, a housing 370, and a connecting member 350. The description of the first sound generating part 310, the second sound generating part 330, the coupling member 320, the housing 370, and the connecting member 350 may be the same as that of the above reference Figures 15 to 18 The descriptions described are substantially the same, and thus, the same reference numerals refer to the same elements, and repeated descriptions thereof are omitted or will be briefly given below.

[0353] The sound device 30 or the housing 370 can be connected or coupled to the vehicle interior material 130 via a connecting member 350. The connecting member 350 can provide a gap space GS between the central portion of the sound device 30 (or the housing 370) and the vehicle interior material 130. The vehicle interior material 130 can be connected or coupled to the connecting member 350 and can be spaced apart from the central portion of the sound device 30 (or the housing 370). For example, the rear central portion of the sound device 30 (or the housing 370) can face or directly face the vehicle interior material 130 with the gap space GS therebetween.

[0354] The vehicle interior material 130 may include a first surface and a second surface different from (or opposite to) the first surface. The first surface may be the surface facing the housing 370. The vehicle interior material 130 may also include holes 137. The vehicle interior material 130 may also include holes 137 configured on the first surface and the second surface. For example, the holes 137 of the vehicle interior material 130 may be configured to pass through the first surface and the second surface.

[0355] The hole 137 passing through the first surface and the second surface may correspond to (or overlap) the opening portion 370o of the housing 370. For example, the hole 137 may have a size greater than or equal to the opening portion 370o, but embodiments of the present disclosure are not limited thereto. For example, the hole 137 may be a through hole, an opening portion, an open hole, a slit, a slot, a sound hole, a sound emission hole, or a sound output hole, but embodiments of the present disclosure are not limited thereto.

[0356] According to an exemplary embodiment of the present disclosure, the vehicle interior material 130 may vibrate based on the vibration of the housing 370 transmitted through the connection member 350 to output sound toward the interior space of the vehicle. For example, the vehicle interior material 130 may vibrate based on the vibration of the housing 370 caused by the vibration of the first sound generating portion 310 and the second sound generating portion 330 transmitted through the connection member 350 to output sound toward the interior space of the vehicle.

[0357] The sound device 30 may output the sound (or sound waves) generated in the interior space 370s of the housing 370 based on the vibrations of the first and second sound generating parts 310 and 330 to the interior space of the vehicle through the opening 370o and the hole 137 of the housing 370, but is not limited thereto.

[0358] The sound device 30 or the housing 370 according to another exemplary embodiment of the present disclosure may further include a protrusion 372. The housing 370 may further include a protrusion 372.

[0359] The protrusion 372 may surround the opening 370o of the housing 370. For example, the protrusion 372 may be configured to surround the opening 370o. The protrusion 372 may include an opening hole (or hollow hole) 372o corresponding to (or connected to) the opening 370o.

[0360] The protrusion 372 may protrude from the rear surface (or outer surface) 371r of the housing 370 to have an opening hole 372o. The protrusion 372 may protrude from the rear surface (or outer surface) 371r of the plate 371 of the housing 370 to surround the opening 370o. For example, the protrusion 372 may protrude from the rear surface (or outer surface) 371r of the housing 370 (or the plate 371) to have an opening hole 372o.

[0361] A portion (or end) of the protrusion 372 can be received or inserted into the hole 137 of the vehicle interior material 130. For example, the hole 137 of the vehicle interior material 130 can receive a portion (or end) of the protrusion 372. Therefore, the sound based on the vibration of the first sound generating unit 310 and the second sound generating unit 330 can be output to the interior space of the vehicle through the hole 137 of the vehicle interior material 130 and the opening hole 372o of the protrusion 372.

[0362] The sound device 30 can output the sound (or sound waves) generated in the internal space 370s of the shell 370 based on the vibration of the first sound generating part 310 and the second sound generating part 330 to the interior space of the vehicle through the hole 137 of the vehicle interior material 130 and the opening hole 372o of the protrusion 372, but is not limited to this.

[0363] The sound device 30 according to another exemplary embodiment of the present disclosure may further include a coupling portion. The coupling portion may be configured as a housing 370 fixedly mounted on the vehicle interior material 130. The vehicle interior material 130 may be disposed (or inserted) between the housing 370 (or the sound device 30) and the coupling portion. For example, the coupling portion may be connected (or coupled) or fastened to the protrusion 372 (or the housing 370 or the sound device 30) through the hole 137 of the vehicle interior material 130 at the interior space of the vehicle. For example, the coupling portion may be connected (or coupled) or fastened to the protrusion 372 (or the housing 370 or the sound device 30) through a hook coupling scheme.

[0364] According to an exemplary embodiment of the present disclosure, the housing 370 may include the protrusion 372, and thus the coupling portion 500 may be easily connected or coupled to the protrusion 372. Therefore, the connection process or coupling process between the vehicle interior material 130 and the sound device 30 may be simplified.

[0365] Figure 25 is a diagram illustrating a vibration generator of a vibration device according to an exemplary embodiment of the present disclosure. Figure 26 According to an exemplary embodiment of the present disclosure Figure 25 A cross-sectional view taken along line IX-IX' is shown. Figure 27 According to an exemplary embodiment of the present disclosure Figure 25 A cross-sectional view taken along line XX' shown in FIG.

[0366] refer to Figures 25 to 27 In the sound device 30 according to the exemplary embodiment of the present disclosure, each of the first vibration generator 313a and the second vibration generator 313b of the first vibration device 313 and each of the third vibration generator 333a and the fourth vibration generator 333b of the second vibration device 333 may include a piezoelectric material having piezoelectric characteristics, but is not limited thereto.

[0367] Each of the first to fourth vibration generators 313a, 313b, 333a, and 333b may be configured as a ceramic-based piezoelectric material capable of achieving relatively strong vibrations, or may be configured as a piezoelectric ceramic having a perovskite-based crystal structure, but embodiments of the present disclosure are not limited thereto. For example, each of the first to fourth vibration generators 313a, 313b, 333a, and 333b may be a vibration generating device, a vibration membrane, a vibration generating membrane, an active vibration generator, an actuator, an exciter, a membrane actuator, a membrane exciter, an ultrasonic actuator, or an active vibration member, but embodiments of the present disclosure are not limited thereto.

[0368] Each of the first to fourth vibration generators 313 a , 313 b , 333 a , and 333 b according to an exemplary embodiment of the present disclosure may include a vibration generating part 1311 .

[0369] The vibration generating unit 1311 can be configured to vibrate via the piezoelectric effect based on a drive signal. For example, the vibration generating unit 1311 can include a piezoelectric vibrating unit. The vibration generating unit 1311 can include at least one or more of a piezoelectric inorganic material and a piezoelectric organic material. For example, the vibration generating unit 1311 can be a vibration device, a piezoelectric device, a piezoelectric device portion, a piezoelectric device layer, a piezoelectric structure, a piezoelectric vibrating portion, a piezoelectric vibrating layer, etc., but embodiments of the present disclosure are not limited thereto.

[0370] The vibration generating portion 1311 according to an exemplary embodiment of the present disclosure may include a vibration portion 1311 a , a first electrode portion 1311 b , and a second electrode portion 1311 c .

[0371] The vibration portion 1311a may include a piezoelectric material or an electroactive material that exhibits a piezoelectric effect. For example, the vibration portion 1311a may include a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric composite layer, a piezoelectric composite material, or a piezoelectric ceramic composite material, but the embodiments of the present disclosure are not limited thereto.

[0372] The vibration portion 1311a may be configured as a ceramic-based material capable of achieving relatively strong vibration, or may be configured as a piezoelectric ceramic having a perovskite-based crystal structure. For example, the vibration portion 1311a may include at least one or more of lead titanate (PbTiO3), lead zirconate (PbZrO3), lead zirconate titanate (PbZrTiO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3), but embodiments of the present disclosure are not limited thereto.

[0373] The piezoelectric ceramic may be configured as a single crystal ceramic having a crystal structure, or may be configured as a ceramic material or polycrystalline ceramic having a polycrystalline structure. The piezoelectric material comprising a single crystal ceramic may include α-AlPO4, α-SiO2, LiNbO3, Tb2(MoO4)3, Li2B4O7 or ZnO, but the embodiments of the present disclosure are not limited thereto. The piezoelectric material comprising a polycrystalline ceramic may include a lead zirconate titanate (PZT)-based material including lead (Pb), zirconium (Zr) and titanium (Ti), or may include a lead zirconate nickel niobate (PZNN)-based material including lead (Pb), zirconium (Zr), nickel (Ni) and niobium (Nb), but the embodiments of the present disclosure are not limited thereto. For example, the vibration portion 1311a may include at least one or more of calcium titanate (PbTiO3), BaTiO3 and SrTiO3 without lead (Pb), but is not limited thereto.

[0374] The first electrode portion 1311b may be provided at the first surface (or upper surface or front surface) 1311s1 of the vibration portion 1311a. The first electrode portion 1311b may have the same size as the vibration portion 1311a, or may have a smaller size than the vibration portion 1311a, but embodiments of the present disclosure are not limited thereto. For example, the first electrode portion 1311b may have the same shape as the vibration portion 1311a, but embodiments of the present disclosure are not limited thereto.

[0375] The second electrode portion 1311c may be disposed on a second surface (or lower surface or rear surface) 1311s2 of the vibration portion 1311a that is opposite or different from the first surface 1311s1. The second electrode portion 1311c may have the same size as the vibration portion 1311a, or the size of the second electrode portion 1311c may be smaller than the size of the vibration portion 1311a, but embodiments of the present disclosure are not limited thereto. For example, the second electrode portion 1311c may have the same shape as the vibration portion 1311a, but embodiments of the present disclosure are not limited thereto.

[0376] According to an exemplary embodiment of the present disclosure, one or more of the first electrode portion 1311b and the second electrode portion 1311c may be formed of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the transparent conductive material or the semi-transparent conductive material may include indium tin oxide (ITO) or indium zinc oxide (IZO), but the embodiments of the present disclosure are not limited thereto. The opaque conductive material may include gold (Au), silver (Ag), platinum (Pt), palladium (Pd), molybdenum (Mo), magnesium (Mg), carbon, or silver (Ag) containing glass frit, or may be made of an alloy thereof, but the embodiments of the present disclosure are not limited thereto. For example, in order to enhance the electrical and / or vibration characteristics of the vibration portion 1311a, each of the first electrode portion 1311b and the second electrode portion 1311c may include silver (Ag) having a low resistivity, but the embodiments of the present disclosure are not limited thereto. For example, the carbon may include one or more of carbon black, Ketjen black, carbon nanotubes, and a carbon material including graphite, but the embodiments of the present disclosure are not limited thereto.

[0377] The vibration portion 1311a can be polarized (or polarized) by applying a certain voltage to the first electrode portion 1311b and the second electrode portion 1311c in a certain temperature atmosphere or in a temperature atmosphere that can be changed from high temperature to room temperature, but the embodiments of the present disclosure are not limited thereto. For example, the polarization direction (or polarization direction) formed in the vibration portion 1311a can be formed or aligned (or arranged) from the first electrode portion 1311b to the second electrode portion 1311c, but the embodiments of the present disclosure are not limited thereto. For example, the polarization direction (or polarization direction) formed in the vibration portion 1311a can be formed or aligned (or arranged) from the second electrode portion 1311c to the first electrode portion 1311b.

[0378] The vibration portion 1311a can contract and / or expand alternately and repeatedly to vibrate based on a drive signal applied from the outside to the first electrode portion 1311b and the second electrode portion 1311c by the inverse piezoelectric effect. For example, the vibration portion 1311a can vibrate in the vertical direction (or thickness direction) and the planar direction by the signal applied to the first electrode portion 1311b and the second electrode portion 1311c. The vibration portion 1311a can be displaced (or vibrated or driven) by contraction and / or expansion in the planar direction, thereby improving the vibration characteristics of the vibration generator 1310, including sound characteristics and / or sound pressure level characteristics.

[0379] Each of the first to fourth vibration generators 313 a , 313 b , 333 a , and 333 b according to the exemplary embodiment of the present disclosure may further include a first cover member 1313 and a second cover member 1315 .

[0380] The first cover member 1313 may be provided at the first surface of the vibration generating portion 1311. For example, the first cover member 1313 may be configured to cover the first electrode portion 1311b of the vibration generating portion 1311. For example, the first cover member 1313 may be configured to have a size larger than that of the vibration generating portion 1311, and may be configured to have the same size as the second cover member 1315, but embodiments of the present disclosure are not limited thereto. The first cover member 1313 may be configured to protect the first surface of the vibration generating portion 1311. For example, the first cover member 1313 may be configured to protect the first surface of the first electrode portion 1311b of the vibration generating portion 1311.

[0381] The second cover member 1315 may be provided at the second surface of the vibration generating portion 1311. For example, the second cover member 1315 may be configured to cover the second electrode portion 1311c of the vibration generating portion 1311. For example, the second cover member 1315 may be configured to have a larger size than the vibration generating portion 1311, and may be configured to have the same size as the first cover member 1313, but embodiments of the present disclosure are not limited thereto. The second cover member 1315 may be configured to protect the second surface of the vibration generating portion 1311. For example, the second cover member 1315 may be configured to protect the second surface of the second electrode portion 1311c of the vibration generating portion 1311.

[0382] According to an exemplary embodiment of the present disclosure, the first cover member 1313 and the second cover member 1315 may include the same material or different materials. For example, each of the first cover member 1313 and the second cover member 1315 may be a polyimide (PI) film, a polyethylene terephthalate (PET) film, or a polyethylene naphthalate (PEN) film, but the embodiments of the present disclosure are not limited thereto.

[0383] The first cover member 1313 may be connected or coupled to the first surface of the vibration generating portion 1311 or the first electrode portion 1311 b of the vibration generating portion 1311 by using the first adhesive layer 1317. For example, the first cover member 1313 may be connected or coupled to the first surface of the vibration generating portion 1311 or the first electrode portion 1311 b of the vibration generating portion 1311 by a film lamination process using the first adhesive layer 1317.

[0384] The second cover member 1315 may be connected or coupled to the second surface of the vibration generating portion 1311 or the second electrode portion 1311 c of the vibration generating portion 1311 by using the second adhesive layer 1319. For example, the second cover member 1315 may be connected or coupled to the second surface of the vibration generating portion 1311 or the second electrode portion 1311 c of the vibration generating portion 1311 by a film lamination process using the second adhesive layer 1319.

[0385] Each of the first adhesive layer 1317 and the second adhesive layer 1319 according to an exemplary embodiment of the present disclosure may include an electrically insulating material having adhesiveness and capable of compression and decompression. For example, each of the first adhesive layer 1317 and the second adhesive layer 1319 may include epoxy resin, acrylic resin, silicone resin, polyurethane resin, acrylic-based polymer, silicone-based polymer, or polyurethane-based polymer, but the embodiments of the present disclosure are not limited thereto.

[0386] The first adhesive layer 1317 and the second adhesive layer 1319 may be disposed between the first cover member 1313 and the second cover member 1315 to surround the vibration generating part 1311. For example, one or more of the first adhesive layer 1317 and the second adhesive layer 1319 may be disposed to partially or completely surround the vibration generating part 1311.

[0387] Either one of the first cover member 1313 and the second cover member 1315 can be opened by using Figures 3 to 22 The corresponding adhesive members 312 and 332 are shown connected or coupled to the corresponding vibration members 311 and 331.

[0388] Any one of the first cover member 1313 and the second cover member 1315 may be omitted or briefly presented. For example, any one of the first cover member 1313 and the second cover member 1315 may be configured to cover or protect at least one or more of the first surface and the second surface of the vibration generating portion 1311.

[0389] Each of the first to fourth vibration generators 313 a , 313 b , 333 a , and 333 b according to the exemplary embodiment of the present disclosure may further include a signal supply member 1320 .

[0390] The signal supply member 1320 may be configured to supply a driving signal supplied from the driving circuit portion to the vibration generating portion 1311. The signal supply member 1320 may be configured to be electrically connected to the vibration portion 1311a of the vibration generating portion 1311. The signal supply member 1320 may be configured to be electrically connected to the first electrode portion 1311b and the second electrode portion 1311c of the vibration generating portion 1311.

[0391] A portion of the signal supply member 1320 can be accommodated (or inserted) between the first cover member 1313 and the second cover member 1315. The end (or distal end or one side) of the signal supply member 1320 can be set or inserted (or accommodated) between an edge portion of the first cover member 1313 and an edge portion of the second cover member 1315. An edge portion of the first cover member 1313 and an edge portion of the second cover member 1315 can accommodate or vertically (or up and down) cover the end (or distal end or one side) of the signal supply member 1320. Therefore, the signal supply member 1320 can be integrated with the vibration generating unit 1311, but the embodiments of the present disclosure are not limited to this. Therefore, the vibration devices 313 and 333 (or the first to fourth vibration generators 313a, 313b, 333a and 333b) can be implemented in a membrane type integrated with the signal supply member 1320. For example, the signal supply member 1320 can be configured as a single component with the vibration generating unit 1311, thereby achieving a single material effect. For example, the signal supply member 1320 may be configured as a signal cable, a flexible cable, 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 of the present disclosure are not limited thereto.

[0392] The signal supply member 1320 according to an exemplary embodiment of the present disclosure may include a base member 1321 and a plurality of signal lines 1323a and 1323b. For example, the signal supply member 1320 may include a base member 1321, a first signal line 1323a, and a second signal line 1323b.

[0393] The base member 1321 may include a transparent or opaque plastic material, but the embodiments of the present disclosure are not limited thereto. The base member 1321 may have a certain width along a first direction X and may extend longer along a second direction Y intersecting the first direction X.

[0394] The first signal line 1323a and the second signal line 1323b may be arranged at the first surface of the base member 1321 in parallel with the second direction Y and may be spaced apart from each other or electrically separated from each other along the first direction X. The first signal line 1323a and the second signal line 1323b may be arranged at the first surface of the base member 1321 in parallel with each other. The first signal line 1323a and the second signal line 1323b may be implemented in a linear shape at the first surface of the base member 1321. For example, the first signal line 1323a and the second signal line 1323b may be implemented in a linear shape by patterning a metal layer (or conductive layer) formed or deposited at the first surface of the base member 1321, but embodiments of the present disclosure are not limited thereto.

[0395] Ends (or distal ends or one side) of the first signal line 1323 a and the second signal line 1323 b may be separated from each other and thus may be individually bent or curved.

[0396] The end (or distal end or one side) of the first signal line 1323a can be electrically connected to the first electrode portion 1311b of the vibration generating unit 1311. For example, the end of the first signal line 1323a can be electrically connected to at least a portion of the first electrode portion 1311b of the vibration generating unit 1311 in one edge portion of the first cover member 1313. For example, the end (or distal end or one side) of the first signal line 1323a can be directly electrically connected to at least a portion of the first electrode portion 1311b of the vibration generating unit 1311. For example, the end (or distal end or one side) of the first signal line 1323a can be electrically connected to or directly contact the first electrode portion 1311b of the vibration generating unit 1311. For example, the end of the first signal line 1323a can be electrically connected to the first electrode portion 1311b via a conductive double-sided tape. Therefore, the first signal line 1323a can supply the first drive signal supplied from the drive circuit portion to the vibration generating unit 1311. For example, the first signal line 1323 a may supply the first driving signal supplied from the driving circuit portion to the first electrode portion 1311 b of the vibration generating portion 1311 , but embodiments of the present disclosure are not limited thereto.

[0397] The end (or distal end or one side) of the second signal line 1323b can be electrically connected to the second electrode portion 1311c of the vibration generating unit 1311. For example, the end of the second signal line 1323b can be electrically connected to at least a portion of the second electrode portion 1311c of the vibration generating unit 1311 in one edge portion of the second cover member 1315. For example, the end of the second signal line 1323b can be directly electrically connected to at least a portion of the second electrode portion 1311c of the vibration generating unit 1311. For example, the end of the second signal line 1323b can be electrically connected to or directly contact the second electrode portion 1311c of the vibration generating unit 1311. For example, the end of the second signal line 1323b can be electrically connected to the second electrode portion 1311c via a conductive double-sided tape. Therefore, the second signal line 1323b can supply the second drive signal supplied from the drive circuit portion to the vibration generating unit 1311. For example, the second signal line 1323 b may supply the second driving signal supplied from the driving circuit portion to the second electrode portion 1311 c of the vibration generating portion 1311 , but embodiments of the present disclosure are not limited thereto.

[0398] The signal supply member 1320 according to the exemplary embodiment of the present disclosure may further include an insulating layer 1325 .

[0399] An insulating layer 1325 may be provided at the first surface of the base member 1321 to cover each of the first and second signal lines 1323 a and 1323 b of the signal supply member 1320 excluding an end portion (or one side).

[0400] An end (or one side) of the signal supply member 1320, including an end (or one side) of the base member 1321 and an end (or one side) 1325a of the insulating layer 1325, can be inserted (or accommodated) between the first cover member 1313 and the second cover member 1315 and can be fixed between the first cover member 1313 and the second cover member 1315 by the first adhesive layer 1317 and the second adhesive layer 1319. Therefore, the end (or one side) of the first signal line 1323a can remain electrically connected to the first electrode portion 1311b of the vibration generating portion 1311, and the end (or one side) of the second signal line 1323b can remain electrically connected to the second electrode portion 1311c of the vibration generating portion 1311. In addition, an end (or one side) of the signal supply member 1320 can be inserted (or accommodated) and fixed between the vibration generating portion 1311 and the first cover member 1313, thereby preventing contact defects between the vibration generator 1310 and the signal supply member 1320 due to movement of the signal supply member 1320.

[0401] In the signal supply member 1320 according to an exemplary embodiment of the present disclosure, each of the end portion (or side) of the base member 1321 and the end portion (or side) 1325a of the insulating layer 1325 can be removed. For example, each of the end portion of the first signal line 1323a and the end portion of the second signal line 1323b can be exposed to the outside without being supported or covered by each of the end portion (or side) 1325a of the base member 1321 and the end portion (or side) 1325a of the insulating layer 1325, respectively. For example, each of the end portion (or side) of the first signal line 1323a and the second signal line 1323b can protrude (or extend) from the end portion 1321e of the base member 1321 or the end portion 1325e of the insulating layer 1325 to have a certain length. Therefore, each of the end portions (or distal end portions or sides) of each of the first signal line 1323a and the second signal line 1323b can be bent individually or independently.

[0402] The end (or one side) of the first signal line 1323a that is not supported by the end (or one side) of the base member 1321 and the end 1325a of the insulating layer 1325, and the end (or one side) of the second signal line 1323b that is not supported by the end (or one side) of the base member 1321 and the end 1325a of the insulating layer 1325 can be directly connected to or directly contact the vibration generating portion 1311.

[0403] An end portion (or one side) of the first signal line 1323a that is not supported by an end portion (or one side) of the base member 1321 and an end portion 1325a of the insulating layer 1325 may be directly connected to or in direct contact with the first electrode portion 1311b of the vibration generating portion 1311. An end portion (or one side) of the second signal line 1323b that is not supported by an end portion (or one side) of the base member 1321 and an end portion 1325a of the insulating layer 1325 may be directly connected to or in direct contact with the second electrode portion 1311c of the vibration generating portion 1311.

[0404] According to an exemplary embodiment of the present disclosure, a portion of the signal supply member 1320 or a portion of the base member 1321 may be disposed or inserted (or accommodated) between the first cover member 1313 and the second cover member 1315, and thus the signal supply member 1320 may be integrated with the vibration generating portion 1311. Therefore, the vibration generating portion 1311 and the signal supply member 1320 may be configured as one component, and thus a single material effect may be achieved.

[0405] According to an exemplary embodiment of the present disclosure, the first signal line 1323a and the second signal line 1323b of the signal supply member 1320 can be integrated with the vibration generator 1310, and thus a welding process for electrical connection between the vibration generator 1310 and the signal supply member 1320 may not be required. Therefore, the manufacturing process and structure of the vibration devices 313 and 333 (or the first to fourth vibration generators 313a, 313b, 333a, and 333b) can be simplified, and hazards associated with the welding process can be reduced.

[0406] Figure 28 is a diagram showing a vibration portion according to another exemplary embodiment of the present disclosure. For example, Figure 28 Shown above reference Figures 25 to 27 Another exemplary embodiment of a vibration portion is described.

[0407] refer to Figure 26 and Figure 28 , the vibration part 1311a according to another exemplary embodiment of the present disclosure may include a plurality of first parts 1311a1 and a plurality of second parts 1311a2. For example, the plurality of first parts 1311a1 and the plurality of second parts 1311a2 may be alternately and repeatedly arranged along the second direction Y, as shown in FIG. Figure 28 Alternatively, the plurality of first portions 1311a1 and the plurality of second portions 1311a2 may be alternately and repeatedly arranged along the first direction X.

[0408] Each of the plurality of first portions 1311a1 may include an inorganic material portion having a piezoelectric effect (or piezoelectric characteristics). For example, each of the plurality of first portions 1311a1 may include at least one or more of a piezoelectric inorganic material and a piezoelectric organic material. For example, each of the plurality of first portions 1311a1 may be an inorganic portion, an inorganic material portion, a piezoelectric portion, a piezoelectric material portion, or an electroactive portion, but embodiments of the present disclosure are not limited thereto.

[0409] According to an exemplary embodiment of the present disclosure, each of the plurality of first portions 1311a1 may have a width parallel to the second direction Y (or the first direction X) and may extend along the first direction X (or the second direction Y). Figures 25 to 27 The described vibration parts 1311 a are substantially the same, and thus, repeated descriptions thereof are omitted or will be briefly given below.

[0410] Each of the plurality of second portions 1311a2 may be disposed between the plurality of first portions 1311a1. For example, each of the plurality of first portions 1311a1 may be disposed between two adjacent second portions 1311a2 in the plurality of second portions 1311a2. Each of the plurality of second portions 1311a2 may have a width parallel to the second direction Y (or first direction X) and may extend along the first direction X (or second direction Y). The width of the first portion 1311a1 may be the same as or different from the width of the second portion 1311a2. For example, the width of the first portion 1311a1 may be greater than the width of the second portion 1311a2. For example, the first portion 1311a1 and the second portion 1311a2 may include linear shapes or strip shapes having the same size or different sizes, but embodiments of the present disclosure are not limited thereto.

[0411] Each of the plurality of second parts 1311a2 can be configured to fill the air gap between two adjacent first parts in the plurality of first parts 1311a1. Each of the plurality of second parts 1311a2 can be configured to fill the air gap between two adjacent first parts in the plurality of first parts 1311a1, and thus can be connected to the side surface adjacent to it of the first part 1311a1 or attached to the side surface adjacent to it of the first part 1311a1. According to an exemplary embodiment of the present disclosure, each of the plurality of first parts 1311a1 and the plurality of second parts 1311a2 can be arranged (or disposed) parallel to each other at the same plane (or the same layer). Therefore, the vibration part 1311a can be expanded to a desired size or length by the lateral connection (or connection) of the first part 1311a1 and the second part 1311a2.

[0412] According to an exemplary embodiment of the present disclosure, each of the plurality of second portions 1311a2 can absorb the impact applied to the first portion 1311a1, and thus can enhance the durability of the first portion 1311a1 and provide flexibility to the vibration portion 1311a. Each of the plurality of second portions 1311a2 can include an organic material having a ductile property. For example, each of the plurality of second portions 1311a2 can include one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicon-based polymer, but embodiments of the present disclosure are not limited thereto. For example, each of the plurality of second portions 1311a2 can be an organic portion, an organic material portion, an adhesive portion, a stretching portion, a bending portion, a damping portion, or a ductile portion, but embodiments of the present disclosure are not limited thereto.

[0413] The first surface of each of the plurality of first portions 1311a1 and the plurality of second portions 1311a2 may be commonly connected to the first electrode portion 1311b. The second surface of each of the plurality of first portions 1311a1 and the plurality of second portions 1311a2 may be commonly connected to the second electrode portion 1311c. For example, one or both of the first electrode portion 1311b and the second electrode portion 1311c may be formed as a patterned electrode to correspond only to the plurality of first portions 1311a1.

[0414] The multiple first parts 1311a1 of the vibration part 1311a can be polarized (or polarized) by applying a certain voltage to the first electrode part 1311b and the second electrode part 1311c in a certain temperature atmosphere or in a temperature atmosphere that can be changed from high temperature to room temperature, but the embodiments of the present disclosure are not limited thereto.

[0415] The plurality of first portions 1311a1 and the plurality of second portions 1311a2 may be arranged on the same plane (or connected to the same plane), and thus the vibration portion 1311a according to another exemplary embodiment of the present disclosure may have a single film type. Therefore, the vibration generating portion 1311 according to another exemplary embodiment of the present disclosure or the vibration generator 1310 including the vibration portion 1311a may vibrate through the first portion 1311a1 having vibration characteristics and may be bent into a curved shape through the second portion 1311a2 having flexibility, but the embodiments of the present disclosure are not limited thereto.

[0416] Figure 29 is a diagram showing a vibration portion according to another exemplary embodiment of the present disclosure. For example, Figure 29 Shown above reference Figures 25 to 27 Another exemplary embodiment of a vibration portion is described.

[0417] refer to Figure 26 and Figure 29, a vibration part 1311 a according to another exemplary embodiment of the present disclosure may include a plurality of first portions 1311 a 3 and a second portion 1311 a 4 disposed between the plurality of first portions 1311 a 3 .

[0418] Each of the plurality of first portions 1311a3 may be spaced apart from each other along each of the first direction X and the second direction Y. For example, each of the plurality of first portions 1311a3 may have a hexahedral shape of the same size and may be arranged in a grid shape, but embodiments of the present disclosure are not limited thereto. For example, each of the plurality of first portions 1311a3 may have a circular plate, an oval plate, or a polygonal plate of the same size, but embodiments of the present disclosure are not limited thereto.

[0419] Each of the plurality of first portions 1311a3 may be the same as that referred to above. Figure 28 The first portion 1311a1 of the description is substantially the same, and thus, a repeated description thereof is omitted or will be briefly given below.

[0420] The second portion 1311a4 may be disposed between the plurality of first portions 1311a3 along each of the first direction X and the second direction Y. The second portion 1311a4 may be configured to fill an air gap between two adjacent first portions 1311a3, or to be adjacent to or surround each of the plurality of first portions 1311a3, and thus, the second portion 1311a4 may be connected to or attached to the first portion 1311a3 adjacent thereto. The second portion 1311a4 may be similar to the first portion 1311a3 described above. Figure 28 The second portion 1311a2 of the description is substantially the same, and thus, a repeated description thereof is omitted or will be briefly given below.

[0421] The first surface of each of the plurality of first portions 1311a3 and second portions 1311a4 may be commonly connected to the first electrode portion 1311b. The second surface of each of the plurality of first portions 1311a3 and second portions 1311a4 may be commonly connected to the second electrode portion 1311c. For example, one or both of the first electrode portion 1311b and the second electrode portion 1311c may be formed as a patterned electrode to correspond only to the plurality of first portions 1311a3.

[0422] The multiple first parts 1311a3 of the vibration part 1311a can be polarized (or polarized) by applying a certain voltage to the first electrode part 1311b and the second electrode part 1311c in a certain temperature atmosphere or in a temperature atmosphere that can be changed from high temperature to room temperature, but the embodiments of the present disclosure are not limited thereto.

[0423] The plurality of first portions 1311a3 and second portions 1311a4 may be arranged on the same plane (or connected to the same plane), and thus the vibration portion 1311a according to another exemplary embodiment of the present disclosure may have a single film type. Therefore, the vibration generating portion 1311 according to another exemplary embodiment of the present disclosure or the vibration generator 1310 including the vibration portion 1311a may vibrate via the first portion 1311a3 having vibration characteristics and may be bent into a curved shape via the second portion 1311a4 having flexibility, but the embodiments of the present disclosure are not limited thereto.

[0424] Figure 30 FIG. 1 is a diagram illustrating a vibration generator of a vibration device according to another exemplary embodiment of the present disclosure.

[0425] refer to Figure 30 In the sound device 30 according to another exemplary embodiment of the present disclosure, each of the first vibration generator 313a and the second vibration generator 313b of the first vibration device 313 and each of the third vibration generator 333a and the fourth vibration generator 333b of the second vibration device 333 may include a piezoelectric material having piezoelectric characteristics.

[0426] Each of the first to fourth vibration generators 313a, 313b, 333a, and 333b may include a plurality of vibrators 1310a and 1310b. For example, each of the first to fourth vibration generators 313a, 313b, 333a, and 333b may include a first vibrator 1310a and a second vibrator 1310b.

[0427] The first vibrator 1310a and the second vibrator 1310b can overlap or stack each other to shift (or drive or vibrate) in the same direction to maximize or increase the amplitude displacement of the vibration generators 313a, 313b, 333a, and 333b and / or the amplitude displacement of the second vibration member 331. For example, the first vibrator 1310a and the second vibrator 1310b can have substantially the same size, but embodiments of the present disclosure are not limited thereto. Therefore, the first vibrator 1310a and the second vibrator 1310b can maximize or increase the amplitude displacement of the vibration generators 313a, 313b, 333a, and 333b and / or the amplitude displacement of the second vibration member 331.

[0428] According to an exemplary embodiment of the present disclosure, either one of the first vibrator 1310a and the second vibrator 1310b can be used to Figures 3 to 29The respective adhesive members 312 and 332 are shown to be connected or coupled to the respective vibration members 311 and 331. For example, the first vibrator 1310a can be connected or coupled to the respective vibration members 311 and 331 by using the respective adhesive members 312 and 332.

[0429] Each of the first vibrator 1310a and the second vibrator 1310b can be the same as that described above with reference to Figures 25 to 29 Each of the described vibration generators 313a, 313b, 333a, and 333b is the same or substantially the same, and thus, the same reference numerals refer to the same elements, and repeated descriptions thereof are omitted or will be briefly given below.

[0430] Each of the first to fourth vibration generators 313 a , 313 b , 333 a , and 333 b according to another exemplary embodiment of the present disclosure may further include an intermediate member 1330 .

[0431] The intermediate member 1330 may be disposed or connected between the first vibrator 1310a and the second vibrator 1310b. For example, the intermediate member 1330 may be disposed or connected between the second cover member 1315 of the first vibrator 1310a and the first cover member 1313 of the second vibrator 1310b. For example, the intermediate member 1330 may be an adhesive member or a connecting member, but embodiments of the present disclosure are not limited thereto.

[0432] According to an exemplary embodiment of the present disclosure, the intermediate member 1330 can be configured to include a material comprising an adhesive layer that has good adhesion or attachment relative to each of the first vibrator 1310a and the second vibrator 1310b. For example, the intermediate member 1330 may include a foam pad, double-sided tape, double-sided foam tape, double-sided pad, double-sided foam pad or adhesive, etc., but the embodiments of the present disclosure are not limited thereto. For example, the adhesive layer of the intermediate member 1330 may include epoxy resin, acrylic, silicone resin or polyurethane, but the embodiments of the present disclosure are not limited thereto. For example, the adhesive layer of the intermediate member 1330 may include a polyurethane-based material (or substance) having relatively ductile properties. Therefore, the vibration loss caused by the displacement interference between the first vibrator 1310a and the second vibrator 1310b can be reduced or minimized, or each of the first vibrator 1310a and the second vibrator 1310b can be freely displaced (or vibrated or driven).

[0433] Each of the first to fourth vibration generators 313a, 313b, 333a, and 333b according to another exemplary embodiment of the present disclosure may include a first vibrator 1310a and a second vibrator 1310b that are stacked (or overlapped) to vibrate (or displace or drive) in the same direction, and thus can maximize or increase the amount of displacement or the amplitude of displacement. Therefore, the amount of displacement (or bending force or driving force) or the amplitude of displacement of the corresponding vibration members 311 and 331 can be maximized or increased.

[0434] Figure 31 is a diagram illustrating a vehicle device according to an exemplary embodiment of the present disclosure. Figure 32 is a diagram illustrating a vehicle device according to an exemplary embodiment of the present disclosure. Figure 33 It shows the settings Figure 31 and Figure 32 A diagram of a sound generating device at the roof of a vehicle arrangement is shown. Figure 34 It shows the settings Figure 31 and Figure 32 Diagram of the sound generating devices at the roof and seats of the vehicle arrangement shown.

[0435] refer to Figures 31 to 34 The vehicle device 10 according to an exemplary embodiment of the present disclosure may include a vehicle interior material 130 and one or more first sound generating devices 30-1. For example, the vehicle interior material 130 may output sound based on the vibration of the one or more first sound generating devices 30-1. For example, the vehicle interior material 130 may be exposed to the interior space of the vehicle. For example, the one or more first sound generating devices 30-1 may be configured to output sound to the interior space.

[0436] The first sound generating device 30-1 may include at least one or more sound generators 31A to 31G disposed in at least one or more of the instrument panel 130A, the pillar interior material 130B, the roof interior material 130C, the door interior material 130D, the seat interior material 130E, the handle interior material 130F, and the floor interior material 130G. For example, the first sound generating device 30-1 may include at least one or more of the first to seventh sound generators 31A to 31G and may thus output sounds of one or more channels. For example, at least one or more of the first to seventh sound generators 31A to 31G of one or more first sound generating devices 30-1 may be configured to output sounds of one or more channels to the interior space.

[0437] The first sound generator 31A according to an exemplary embodiment of the present disclosure may be provided between the instrument panel 130A and the instrument panel, and may be configured to indirectly or directly vibrate the instrument panel 130A to output a sound based on the vibration of the instrument panel 130A. Figures 3 to 30 The first sound generator 31A may be a dashboard speaker, but is not limited thereto.

[0438] According to an exemplary embodiment of the present disclosure, at least one or more of the instrument panel and instrument panel 130A may include multiple areas, such as a first area corresponding to the driver's seat DS, a second area corresponding to the passenger seat PS, and a third area (or intermediate area) between the first and second areas. At least one or more of the instrument panel and instrument panel 130A may include a fourth area that is tilted to face the passenger seat PS. The first sound generator 31A may be configured to vibrate at least one or more of the multiple areas of the instrument panel 130A. According to an exemplary embodiment of the present disclosure, the first sound generator 31A may be configured to vibrate at least one or more of the first to fourth areas of the instrument panel 130A. For example, the first sound generator 31A may be configured to output sound at a frequency of approximately 150 Hz to approximately 20 kHz. For example, the first sound generator 31A configured to vibrate at least one or more of the first to fourth areas of the instrument panel 130A may have the same sound output characteristics or different sound output characteristics.

[0439] The second sound generator 31B according to an exemplary embodiment of the present disclosure may be provided between the pillar interior material 130B and the pillar panel, and may be configured to indirectly or directly vibrate the pillar interior material 130B to output sound based on the vibration of the pillar interior material 130B. For example, the second sound generator 31B may be configured to indirectly or directly vibrate the pillar interior material 130B to output sound to the interior space. According to an exemplary embodiment of the present disclosure, the second sound generator 31B may include the above-mentioned reference Figures 3 to 30 The second sound generator 31B may be a column speaker or a tweeter, for example.

[0440] According to an exemplary embodiment of the present disclosure, the pillar panel may include a first pillar (or A-pillar) positioned on either side of the front window, a second pillar (or B-pillar) positioned on either side of the center of the vehicle body, and a third pillar (or C-pillar) positioned on either side of the rear portion of the vehicle body. The pillar interior material 130B may include a first pillar interior material 130B1 covering the first pillar, a second pillar interior material 130B2 covering the second pillar, and a third pillar interior material 130B3 covering the third pillar. According to an exemplary embodiment of the present disclosure, the second sound generator 31B may be positioned in at least one or more of the area between the first pillar and the first pillar interior material 130B1, the area between the second pillar and the second pillar interior material 130B2, and the area between the third pillar and the third pillar interior material 130B3, thereby causing at least one or more of the first to third pillar interior materials 130B1, 130B2, and 130B3 to vibrate. For example, the second sound generator 31B may be configured to output a sound of approximately 2 kHz to approximately 20 kHz, or may be configured to output a sound of approximately 150 Hz to approximately 20 kHz, but is not limited thereto. For example, the second sound generator 31B configured to vibrate at least one or more of the first to third pillar interior materials 130B1, 130B2, and 130B3 may have the same sound output characteristics or different sound output characteristics.

[0441] refer to Figures 32 to 34 , the third sound generator 31C according to an exemplary embodiment of the present disclosure may be provided between the roof interior material 130C and the roof frame (or roof panel), and may vibrate the roof interior material 130C to output sound based on the vibration of the roof interior material 130C. For example, the third sound generator 31C may indirectly or directly vibrate the roof interior material 130C to output sound based on the vibration of the roof interior material 130C. For example, the third sound generator 31C may be configured to indirectly or directly vibrate the roof interior material 130C to output sound to the interior space. According to an exemplary embodiment of the present disclosure, the third sound generator 31C may include the above reference Figures 3 to 30 The third sound generator 31C may be a roof speaker, for example, but is not limited thereto.

[0442] refer to Figure 33The roof trim material 130C may include multiple regions, such as a first region corresponding to the driver's seat DS, a second region corresponding to the passenger seat PS, a third region corresponding to the area between the driver's seat DS and the passenger seat PS, a fourth region corresponding to the first rear seat BS1 behind the driver's seat DS, a fifth region corresponding to the second rear seat BS2 behind the passenger seat PS, a sixth region corresponding to the area between the first rear seat BS1 and the second rear seat BS2, and a seventh region between the third and sixth regions, without limitation. Alternatively, more or fewer regions may be included. For example, the third sound generator 31C may be configured to vibrate at least one or more of the first through seventh regions of the roof trim material 130C. For example, the third sound generator 31C may be configured to output sound ranging from approximately 150 Hz to approximately 20 kHz. For example, the third sound generator 31C configured to vibrate at least one or more of the first through seventh regions of the roof trim material 130C may have the same sound output characteristics or different sound output characteristics. For example, at least one or more third sound generators 31C configured to vibrate at least one or more of the first to seventh regions of the roof interior material 130C may be configured to output sounds of approximately 2 kHz to approximately 20 kHz, and the remaining third sound generators 31C may be configured to output sounds of approximately 150 Hz to approximately 20 kHz, but are not limited thereto.

[0443] refer to Figure 31 and Figure 32 The fourth sound generator 31D according to an exemplary embodiment of the present disclosure may be provided between the door frame and the door interior material 130D, and may be configured to indirectly or directly vibrate the door interior material 130D to output sound based on the vibration of the door interior material 130D. For example, the fourth sound generator 31D according to an exemplary embodiment of the present disclosure may be configured to indirectly or directly vibrate the door interior material 130D to output sound to the interior space. According to an exemplary embodiment of the present disclosure, the fourth sound generator 31D may include the above-referenced Figures 3 to 30 The fourth sound generator 31D may be a door speaker, for example.

[0444] According to an exemplary embodiment of the present disclosure, at least one or more of the door frame and the door interior material 130D may include an upper region, a middle region, and a lower region relative to the height direction Z of the vehicle apparatus 10. For example, the fourth sound generator 31D may be provided in at least one or more of the upper region, the middle region, and the lower region between the door frame and the door interior material 130D, and thus may vibrate at least one or more of the upper region, the middle region, and the lower region of the door interior material 130D.

[0445] According to an exemplary embodiment of the present disclosure, the upper region of the door interior material 130D may have a relatively small radius of curvature. The fourth sound generator 31D for vibrating the upper region of the door interior material 130D may include the fourth sound generator 31D described above with reference to FIG. Figure 28 and Figure 29 An acoustic device 30 having flexible properties is described.

[0446] According to an exemplary embodiment of the present disclosure, the door frame may include a first door frame (or left front door frame), a second door frame (or right front door frame), a third door frame (or left rear door frame), and a fourth door frame (or right rear door frame). According to an exemplary embodiment of the present disclosure, the door interior material 130D may include a first door interior material (or left front door interior material) 130D1 covering the first door frame, a second door interior material (or right front door interior material) 130D2 covering the second door frame, a third door interior material (or left rear door interior material) 130D3 covering the third door frame, and a fourth door interior material (or right rear door interior material) 130D4 covering the fourth door frame. For example, the fourth sound generator 31D can be set in at least one or more of the upper area, middle area and lower area between the first to fourth door frames and the first to fourth door interior materials 130D1, 130D2, 130D3 and 130D4, and can make at least one or more of the upper area, middle area and lower area of each of the first to fourth door interior materials 130D1, 130D2, 130D3 and 130D4 vibrate.

[0447] According to an exemplary embodiment of the present disclosure, the fourth sound generator 31D configured to vibrate the upper area of each of the first to fourth door interior materials 130D1, 130D2, 130D3 and 130D4 may be configured to output a sound of approximately 2 kHz to approximately 20 kHz, or may be configured to output a sound of approximately 150 Hz to approximately 20 kHz.

[0448] For example, the fourth sound generator 31D according to the exemplary embodiment of the present disclosure may be configured to indirectly or directly vibrate at least one of the first to fourth door interior materials 130D1 , 130D2 , 130D3 , and 130D4 of the door interior material 130D to output sound to the interior space.

[0449] According to an exemplary embodiment of the present disclosure, the fourth sound generator 31D configured to vibrate the middle and lower regions of at least one or more of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may be configured to output sound at a frequency of approximately 150 Hz to approximately 20 kHz. The fourth sound generator 31D configured to vibrate the middle and lower regions of each of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may be configured to output sound at a frequency of approximately 150 Hz to approximately 20 kHz. For example, the fourth sound generator 31D configured to vibrate the middle and lower regions of at least one or more of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may be any one or more of a woofer, a mid-woofer, and a subwoofer. For example, the fourth sound generator 31D configured to vibrate the middle and lower areas of each of the first to fourth door interior materials 130D1 , 130D2 , 130D3 , and 130D4 may be one or more of a woofer, a mid-woofer, and a subwoofer.

[0450] The sounds outputted from the fourth sound generator 31D provided at the first door interior material 130D1 and the fourth sound generator 31D provided at the second door interior material 130D2 may be combined and outputted. For example, the sounds outputted from at least one or more of the fourth sound generator 31D provided at the first door interior material 130D1 and the fourth sound generator 31D provided at the second door interior material 130D2 may be combined and outputted. Furthermore, the sounds outputted from the fourth sound generator 31D provided at the third door interior material 130D3 and the fourth sound generator 31D provided at the fourth door interior material 130D4 may be combined and outputted.

[0451] According to an exemplary embodiment of the present disclosure, the upper region of each of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4 may include a first upper region adjacent to the instrument panel 130A, a second upper region adjacent to the first to third rear seats BS1, BS2, and BS3, and a third upper region between the first and second upper regions. For example, the fourth sound generator 31D may be provided in one or more of the first to third upper regions of at least one or more of the first to fourth door interior materials 130D1, 130D2, 130D3, and 130D4. For example, the fourth sound generator 31D configured to vibrate the first upper region of one or more of the first door interior material 130D1 and the second door interior material 130D2 may be configured to output a sound of approximately 2 kHz to approximately 20 kHz, and the fourth sound generator 31D configured to vibrate one or more of the second upper region and the third upper region of each of the first door interior material 130D1 and the second door interior material 130D2 may be configured to output a sound of approximately 2 kHz to approximately 20 kHz, or may be configured to output a sound of approximately 150 Hz to approximately 20 kHz. For example, the fourth sound generator 31D configured to vibrate one or more of the second upper region and the third upper region of at least one or more of the first door interior material 130D1 and the second door interior material 130D2 may be configured to output a sound of approximately 2 kHz to approximately 20 kHz, or may be configured to output a sound of approximately 150 Hz to approximately 20 kHz.

[0452] refer to Figure 31 、 Figure 32 and Figure 34 The fifth sound generator 31E according to an exemplary embodiment of the present disclosure may be provided between the seat frame and the seat interior material 130E, and may be configured to indirectly or directly vibrate the seat interior material 130E to output sound based on the vibration of the seat interior material 130E. According to an exemplary embodiment of the present disclosure, the fifth sound generator 31E may include the above-referenced Figures 3 to 30 The fifth sound generator 31E may be a sheet speaker or a headrest speaker, for example.

[0453] According to an exemplary embodiment of the present disclosure, the seat frame may include a plurality of seat frames, such as a first seat frame (or driver's seat frame), a second seat frame (or passenger seat frame), a third seat frame (or first rear seat frame), a fourth seat frame (or second rear seat frame), and a fifth seat frame (or third rear seat frame), etc. According to an exemplary embodiment of the present disclosure, the seat interior material 130E may include a plurality of seat interior materials, such as a first seat interior material surrounding the first seat frame, a second seat interior material surrounding the second seat frame, a third seat interior material surrounding the third seat frame, a fourth seat interior material surrounding the fourth seat frame, and a fifth seat interior material surrounding the fifth seat frame, etc.

[0454] According to an exemplary embodiment of the present disclosure, at least one or more of the first to fifth seat frames may include a seat bottom frame, a seat back frame, and a headrest frame. The seat interior material 130E may include a seat bottom interior material 130E1 surrounding the seat bottom frame, a seat back interior material 130E2 surrounding the seat back frame, and a headrest interior material 130E3 surrounding the headrest frame. At least one or more of the seat bottom interior material 130E1, the seat back interior material 130E2, and the headrest interior material 130E3 may include an inner interior material and an outer interior material. For example, the inner interior material may include a foam layer. For example, the outer interior material may include a surface member including fiber or leather. For example, the outer interior material may also include a base member including a plastic material supporting the surface member.

[0455] According to an exemplary embodiment of the present disclosure, the fifth sound generator 31E can be set in at least one or more of the area between the seat back frame and the seat back interior material 130E2 and the area between the headrest frame and the headrest interior material 130E3, and thus can vibrate at least one or more of the outer interior material of the seat back interior material 130E2 and the outer interior material of the headrest interior material 130E3.

[0456] According to an exemplary embodiment of the present disclosure, the fifth sound generator 31E provided in at least one or more of the driver's seat DS and the passenger seat PS may be provided in at least one or more of an area between the seat back frame and the seat back interior material 130E2 and an area between the headrest frame and the headrest interior material 130E3.

[0457] For example, the fifth sound generator 31E according to an exemplary embodiment of the present disclosure may be configured to indirectly or directly vibrate at least one or more of the exterior interior material of the seat back interior material 130E2 and the exterior interior material of the headrest interior material 130E3 to output sound to the interior space.

[0458] According to an exemplary embodiment of the present disclosure, the fifth sound generator 31E provided in at least one or more of the first to third rear seats BS1, BS2, and BS3 may be provided between the headrest frame and the headrest interior material 130E3. For example, at least one or more of the first to third rear seats BS1, BS2, and BS3 may include at least one or more fifth sound generators 31E provided between the headrest frame and the headrest interior material 130E3.

[0459] According to an exemplary embodiment of the present disclosure, the fifth sound generator 31E that vibrates the seat back upholstery material 130E2 of at least one or more of the driver seat DS and the passenger seat PS may be configured to output a sound of approximately 150 Hz to approximately 20 kHz. According to an exemplary embodiment of the present disclosure, the fifth sound generator 31E that vibrates the headrest upholstery material 130E3 of at least one or more of the driver seat DS, the passenger seat PS, and the first to third rear seats BS1, BS2, and BS3 may be configured to output a sound of approximately 2 kHz to approximately 20 kHz, or may be configured to output a sound of approximately 150 Hz to approximately 20 kHz, but is not limited thereto.

[0460] refer to Figure 31 and Figure 32 , the sixth sound generator 31F according to the exemplary embodiment of the present disclosure may be provided between the handle frame and the handle interior material 130F, and may be configured to indirectly or directly vibrate the handle interior material 130F to output sound based on the vibration of the handle interior material 130F. For example, the sixth sound generator 31F according to the exemplary embodiment of the present disclosure may be configured to indirectly or directly vibrate the handle interior material 130F to output sound to the interior space. According to the exemplary embodiment of the present disclosure, the sixth sound generator 31F may include the above reference Figures 3 to 30 The sixth sound generator 31F may be a handle speaker or a steering speaker, for example.

[0461] According to an exemplary embodiment of the present disclosure, the sixth sound generator 31F can be configured to indirectly or directly vibrate the handle trim material 130F to provide a sound to the driver based on the vibration of the handle trim material 130F. The sound output by the sixth sound generator 31F can be the same as or different from the sound output from at least one or more of the first sound generator 31A to the fifth sound generator 31E. As one exemplary embodiment of the present disclosure, the sixth sound generator 31F can output a sound that is provided only to the driver. As another exemplary embodiment of the present disclosure, the sound output by the sixth sound generator 31F and the sound output by at least one or more of the first sound generator 31A to the fifth sound generator 31E can be combined and output.

[0462] refer to Figure 31 and Figure 32 , the seventh sound generator 31G may be provided between the floor panel and the floor interior material 130G, and may be configured to indirectly or directly vibrate the floor interior material 130G to output sound based on the vibration of the floor interior material 130G.

[0463] The seventh sound generator 31G may be provided between the floor panel provided between the driver seat DS and the passenger seat PS and the third rear seat BS3 and the floor interior material 130G. For example, the seventh sound generator 31G may include the above-referenced Figures 3 to 30 The seventh sound generator 31G may be configured to output a sound frequency of approximately 150 Hz to approximately 20 kHz, but is not limited thereto. For example, the seventh sound generator 31G may be a floor speaker, a bottom speaker, or an underfloor speaker.

[0464] refer to Figures 31 to 33 The vehicle apparatus or vehicle 10 according to the exemplary embodiment of the present disclosure may further include a second sound generating device 30-2 provided on the vehicle interior material 130 exposed to the interior space. For example, the vehicle apparatus or vehicle 10 according to the exemplary embodiment of the present disclosure may include only the second sound generating device 30-2 without including the first sound generating device 30-1, or may include both the first sound generating device 30-1 and the second sound generating device 30-2.

[0465] According to an exemplary embodiment of the present disclosure, the vehicle interior material 130 may further include a rearview mirror 130H, an overhead console 130I, a rear package interior material 130J, a glove box 130K, a sun visor 130L, and the like.

[0466] The second sound generating device 30-2 may include at least one or more sound generators 31H to 31L provided in at least one of the rearview mirror 130H, the overhead console 130I, the rear package interior material 130J, the glove box 130K, and the sun visor 130L. For example, the second sound generating device 30-2 may include at least one or more of the eighth to twelfth sound generators 31H to 31L, and thus may output sounds of one or more channels.

[0467] refer to Figures 31 to 33 , the eighth sound generator 31H may be provided at the rearview mirror 130H and may be configured to indirectly or directly vibrate the rearview mirror 130H to output sound based on the vibration of the rearview mirror 130H.

[0468] The eighth sound generator 31H may be provided between the mirror housing connected to the vehicle body structure and the rearview mirror 130H supported by the mirror housing. Figures 3 to 30 The eighth sound generator 31H may be configured to output a sound of about 150 Hz to about 20 kHz. For example, the eighth sound generator 31H may be a mirror speaker.

[0469] refer to Figure 33 and Figure 34 , the ninth sound generator 31I may be provided at the overhead console 130I and may be configured to indirectly or directly vibrate the console cover of the overhead console 130I to output sound based on vibration of an interior material of the overhead console 130I.

[0470] According to an exemplary embodiment of the present disclosure, the overhead console 130I may include a console box embedded in a roof panel or a roof frame, a lighting device provided at the console box, and a console cover covering the lighting device and the console box.

[0471] The ninth sound generator 31I may be provided between the console cover and the console box of the overhead console 130I, and may indirectly or directly vibrate the console cover. The ninth sound generator 31I may indirectly or directly vibrate the console cover to output a sound based on the vibration of the console cover. According to an exemplary embodiment of the present disclosure, the ninth sound generator 31I may include the above-mentioned Figures 3 to 30 The sound device 30 is described above, so its repeated description is omitted or briefly given. For example, the ninth sound generator 31I can be configured to output a sound of about 150 Hz to about 20 kHz. For example, the ninth sound generator 31I can be a console speaker or a lighting speaker.

[0472] According to an exemplary embodiment of the present disclosure, the vehicle device or vehicle 10 may further include a central lighting box provided at the center area of the roof interior material 130C, a central lighting device provided at the central lighting box, and a central lighting cover covering the central lighting device. In this case, the ninth sound generator 31I may be additionally provided between the central lighting cover of the central lighting device and the central lighting box, and may additionally vibrate the central lighting cover.

[0473] refer to Figure 31 and Figure 32 The tenth sound generator 31J may be provided at the rear package interior material 130J and may be configured to indirectly or directly vibrate the rear package interior material 130J to output sound based on the vibration of the rear package interior material 130J.

[0474] The rear package interior material 130J may be provided behind the first to third rear seats BS1, BS2, and BS3. For example, a portion of the rear package interior material 130J may be provided below the rear window 230C.

[0475] The tenth sound generator 31J may be provided at the rear surface of the rear package interior material 130J and may indirectly or directly vibrate the rear package interior material 130J. The tenth sound generator 31J may indirectly or directly vibrate the rear package interior material 130J to output a sound based on the vibration of the rear package interior material 130J. According to an exemplary embodiment of the present disclosure, the tenth sound generator 31J may include the above-referenced Figures 3 to 30 The sound device 30 is described above, and therefore a repeated description thereof is omitted or briefly given. For example, the tenth sound generator 31J may be a rear speaker.

[0476] According to an exemplary embodiment of the present disclosure, the rear package interior material 130J may include multiple regions, such as a first region corresponding to the rear of the first rear seat BS1, a second region corresponding to the rear of the second rear seat BS2, and a third region corresponding to the rear of the third rear seat BS3. According to an exemplary embodiment of the present disclosure, a tenth sound generator 31J may be disposed in at least one or more of the first through third regions of the rear package interior material 130J to vibrate at least one or more of the first through third regions of the rear package interior material 130J. For example, the tenth sound generator 31J may be configured to output sound in a frequency range of approximately 150 Hz to approximately 20 kHz, but is not limited thereto. For example, the tenth sound generator 31J configured to vibrate at least one or more of the first through third regions of the rear package interior material 130J may have the same sound output characteristics or different sound output characteristics.

[0477] refer to Figure 31 and Figure 32, the eleventh sound generator 31K may be provided at the glove box 130K and may be configured to indirectly or directly vibrate the glove box 130K to output sound based on the vibration of the glove box 130K.

[0478] A glove box 130K may be provided at an instrument panel 130A corresponding to a front portion of the passenger seat PS.

[0479] The eleventh sound generator 31K may be provided on the inner surface of the glove box 130K and may indirectly or directly vibrate the glove box 130K to output a sound based on the vibration of the glove box 130K. According to an exemplary embodiment of the present disclosure, the eleventh sound generator 31K may include the above-mentioned Figures 3 to 30 The sound device 30 is described in detail, and therefore, a repeated description thereof will be omitted or briefly described. For example, the eleventh sound generator 31K may be configured to output sound in the frequency range of approximately 150 Hz to approximately 20 kHz, or may be one or more of a woofer, a mid-woofer, and a subwoofer, but is not limited thereto. For example, the eleventh sound generator 31K may be a glove box speaker.

[0480] refer to Figure 33 , the twelfth sound generator 31L may be provided at the sun visor 130L, and may be configured to indirectly or directly vibrate the sun visor 130L to output sound based on the vibration of the sun visor 130L.

[0481] The sun visor 130L may include a first sun visor 130L1 corresponding to the driver seat DS and a second sun visor 130L2 corresponding to the passenger seat PS.

[0482] The twelfth sound generator 31L may be provided in at least one or more of the first sun visor 130L1 and the second sun visor 130L2, and may indirectly or directly vibrate at least one or more of the first sun visor 130L1 and the second sun visor 130L2 to output a sound based on the vibration of at least one or more of the first sun visor 130L1 and the second sun visor 130L2. According to an exemplary embodiment of the present disclosure, the twelfth sound generator 31L may include the above-mentioned Figures 3 to 30 The sound device 30 is described above, and therefore, a repeated description thereof is omitted or briefly given. For example, the twelfth sound generator 31L can be configured to output a sound of about 150 Hz to about 20 kHz. For example, the twelfth sound generator 31L can be a sun visor speaker.

[0483] According to an exemplary embodiment of the present disclosure, at least one or more of the first sun visor 130L1 and the second sun visor 130L2 may further include a sun visor mirror. In this case, the twelfth sound generator 31L may be configured to indirectly or directly vibrate the sun visor mirror of at least one or more of the first sun visor 130L1 and the second sun visor 130L2. The twelfth sound generator 31L that vibrates the sun visor mirror may include the above-mentioned Figures 3 to 30 The sound device 30 is described above, and therefore, a repeated description thereof is omitted.

[0484] refer to Figures 31 to 33 The vehicle device or vehicle 10 according to the exemplary embodiment of the present disclosure may further include a third sound generating device 30-3 provided at the vehicle window 230. For example, the vehicle device or vehicle 10 may include the third sound generating device 30-3 without including at least one or more of the first sound generating device 30-1 and the second sound generating device 30-2, or may include all of the first to third sound generating devices 30-1, 30-2, and 30-3.

[0485] The third sound generating device 30-3 may include at least one or more sound generators 31N and 31O disposed at the vehicle window 230. For example, the third sound generating device 30-3 may include at least one or more of the thirteenth sound generator 31N and the fourteenth sound generator 31O, thereby being able to output sounds of one or more channels. For example, the third sound generating device 30-3 may be a transparent sound generating device.

[0486] The vehicle window 230 of the vehicle device or vehicle 10 may include at least one or more of a front window and a side glass window. The vehicle window 230 may also include at least one or more of a rear window and a roof window.

[0487] The vehicle window 230 according to an exemplary embodiment of the present disclosure may be configured to be completely transparent. The vehicle window 230 according to another exemplary embodiment of the present disclosure may include a transparent portion and a translucent portion surrounding the transparent portion. The vehicle window 230 according to another exemplary embodiment of the present disclosure may include a transparent portion and an opaque portion surrounding the transparent portion.

[0488] The above reference Figures 3 to 30 The described sound device 30 can be configured as transparent or translucent. For example, when the vehicle window 230 is completely transparent, the sound device 30 can be configured as transparent and can be located in the middle or peripheral area of the vehicle window 230. When the vehicle window 230 includes a translucent portion or an opaque portion, the sound device 30 can be configured as translucent or opaque and can be located in the translucent or opaque portion of the vehicle window 230. For example, the sound device 30 can be a transparent sound device.

[0489] At least one or more of the thirteenth sound generator 31N and the fourteenth sound generator 31O according to the exemplary embodiment of the present disclosure may include a transparent or translucent sound device 30. For example, when at least one or more of the thirteenth sound generator 31N and the fourteenth sound generator 31O include the sound device 30, at least one or more of the thirteenth sound generator 31N and the fourteenth sound generator 31O may be configured to indirectly or directly vibrate the vehicle window 230 to output sound based on the vibration of the vehicle window 230.

[0490] According to an exemplary embodiment of the present disclosure, the vehicle windows 230 may include a front window, side windows 230B, and a rear window. According to an exemplary embodiment of the present disclosure, the vehicle windows 230 may also include a roof window 230D. For example, when the vehicle device or vehicle 10 includes the roof window 230D, a portion of the area of the roof frame and the roof interior material 130C may be replaced with the roof window 230D. For example, when the vehicle device or vehicle 10 includes the roof window 230D, the third sound generator 31C may be configured to vibrate the edge portion of the roof interior material 130C surrounding the roof window 230D.

[0491] refer to Figures 32 to 34 The thirteenth sound generator 31N according to the exemplary embodiment of the present disclosure may be provided at the side window 230B and may be configured to output sound by vibrating itself, or may be configured to indirectly or directly vibrate the side window 230B to output sound based on the vibration of the side window 230B.

[0492] According to an exemplary embodiment of the present disclosure, the side window 230B may include a first glass window (or right front window) 230B2, a second side window (or left rear window) 230B3, a third side window (or right rear window) 230B4 and a fourth side window (or left front window).

[0493] According to an exemplary embodiment of the present disclosure, the thirteenth sound generator 31N may be provided in at least one or more of the first to third side windows 230B2, 230B3, and 230B4. For example, at least one or more of the first to third side windows 230B2, 230B3, and 230B4 may include at least one or more thirteenth sound generators 31N.

[0494] The thirteenth sound generator 31N may be provided in at least one or more of the first to third side windows 230B2, 230B3, and 230B4 and may output sound by vibrating itself, or may be configured to indirectly or directly vibrate the corresponding side window 230B2, 230B3, and 230B4 to output sound. For example, the thirteenth sound generator 31N may be configured to output sound in the frequency range of 150 Hz to 20 kHz, but is not limited thereto. For example, the thirteenth sound generators 31N provided in at least one or more of the first to third side windows 230B2, 230B3, and 230B4 may have the same sound output characteristics or different sound output characteristics. For example, the thirteenth sound generator 31N provided in at least one or more of the first to third side windows 230B2, 230B3, and 230B4 may be configured to output sound in the frequency range of 150 Hz to 20 kHz. For example, the thirteenth sound generator 31N may be a side window speaker.

[0495] refer to Figure 31 , the fourteenth sound generator 31O according to an exemplary embodiment of the present disclosure may be provided at the rear window 230C and may output sound by vibrating itself, or may be configured to indirectly or directly vibrate the rear window 230C to output sound based on the vibration of the rear window 230C.

[0496] According to an exemplary embodiment of the present disclosure, the rear window 230C may include multiple areas, such as a first area corresponding to the rear of the first rear seat BS1, a second area corresponding to the rear of the second rear seat BS2, and a third area corresponding to the rear of the third rear seat BS3. According to an exemplary embodiment of the present disclosure, a fourteenth sound generator 31O may be disposed in at least one or more of the first to third areas of the rear window 230C and may vibrate at least one or more of the first to third areas of the rear window 230C to output sound. For example, the fourteenth sound generator 31O may vibrate at least one or more of the first to third areas of the rear window 230C to output sound based on the vibration of at least one or more of the first to third areas of the rear window 230C. For example, the fourteenth sound generators 31O disposed in at least one or more of the first to third areas of the rear window 230C may have the same sound output characteristics or different sound output characteristics. For example, the fourteenth sound generator 31O provided in at least one or more of the first to third areas of the rear window 230C may be configured to output a sound of about 150 Hz to about 20 kHz, or may be one or more of a woofer, a mid-woofer, and a subwoofer. For example, the fourteenth sound generator 31O may be a rear window speaker.

[0497] refer to Figure 31 and Figure 32 The vehicle apparatus or the vehicle 10 according to the exemplary embodiment of the present disclosure may further include a woofer WS provided in at least one or more of the instrument panel 130A, the door frame, and the rear package interior material 130J.

[0498] The woofer WS according to an exemplary embodiment of the present disclosure may include one or more of a woofer, a mid-woofer, and a subwoofer. For example, the woofer WS may be a speaker that outputs sounds from approximately 60 Hz to approximately 150 Hz. Therefore, the woofer WS can output sounds from approximately 60 Hz to approximately 150 Hz, thereby enhancing the low-pitched vocal characteristics of the sound output to the interior space.

[0499] According to an exemplary embodiment of the present disclosure, a woofer WS may be provided in at least one or more of the first and second regions of the instrument panel 130A. According to an exemplary embodiment of the present disclosure, the woofer WS may be provided in each of the first to fourth door frames and exposed in the lower region of each of the first to fourth door interior materials 130D1 to 130D4 of the door interior material 130D. For example, the woofer WS may be provided in at least one or more of the first to fourth door frames and exposed in the lower region of at least one or more of the first to fourth door interior materials 130D1 to 130D4 of the door interior material 130D. For example, the fourth sound generator 31D provided in the lower region of at least one or more of the first to fourth door interior materials 130D1 to 130D4 may be replaced by the woofer WS.

[0500] refer to Figure 32 The vehicle device 10 according to the exemplary embodiment of the present disclosure may further include a decorative member 130P and a fourth sound generating device 30-4. The decorative member 130P covers a portion of the vehicle interior material 130 exposed to the interior space. For example, the fourth sound generating device 30-4 may be provided on the decorative member 130P and the vehicle interior material 130 to output sound. For example, at least one or more of the decorative member 130P and the vehicle interior material 130 may output sound based on vibration of the fourth sound generating device 30-4.

[0501] The decorative member 130P may be configured to cover a portion of the door interior material 130D exposed to the interior space, but the embodiments of the present disclosure are not limited thereto. For example, the decorative member 130P may be configured to cover a portion of one or more of the instrument panel 130A, the pillar interior material 130B, and the roof interior material 130C exposed to the interior space.

[0502] The decorative member 130P according to an exemplary embodiment of the present disclosure may include a metal material or a non-metal material (or a composite non-metal material) having material properties suitable for generating sound based on vibration. For example, the metal material of the decorative member 130P may include any one or more materials of stainless steel, aluminum (Al), Al alloy, magnesium (Mg), Mg alloy, and magnesium-lithium (Mg-Li) alloy, but the embodiments of the present disclosure are not limited thereto. The non-metal material (or composite non-metal material) of the decorative member 130P may include one or more of wood, plastic, glass, cloth, fiber, rubber, paper, carbon, and leather, but the embodiments of the present disclosure are not limited thereto. For example, the decorative member 130P may include a metal material having material properties suitable for generating sound of a high-pitched vocal cord, but the embodiments of the present disclosure are not limited thereto. For example, the high-pitched vocal cord may have a frequency of 1 kHz or higher or 3 kHz or higher, but the embodiments of the present disclosure are not limited thereto.

[0503] The fourth sound generating device 30-4 may be provided between the decoration member 130P and the vehicle interior material 130. For example, the fourth sound generating device 30-4 may be a decoration speaker, etc., but the embodiment of the present disclosure is not limited thereto.

[0504] The fourth sound generating device 30-4 according to an exemplary embodiment of the present disclosure may include the above reference Figures 3 to 30 The one or more sound devices 30 described above may include a fourth sound generating device 30-4 that may be provided at the main interior material or vehicle interior material 130 and the decoration member 130P and may be connected or coupled to the decoration member 130P.

[0505] The fourth sound generating device 30-4 according to an exemplary embodiment of the present disclosure can be configured to indirectly or directly vibrate the decoration member 130P to output sound toward the interior space. The fourth sound generating device 30-4 according to an exemplary embodiment of the present disclosure can be configured to indirectly or directly vibrate the decoration member 130P to output sound toward the interior space based on the vibration of the decoration member 130P. For example, the fourth sound generating device 30-4 can be configured to output sound in the high-pitched vocal range, but embodiments of the present disclosure are not limited thereto.

[0506] The vehicle device or vehicle 10 according to the exemplary embodiment of the present disclosure can output sound to the interior space IS through at least one or more of a first sound generating device 30-1 set at the vehicle interior material 130, a second sound generating device 30-2 set at the vehicle interior material 130 exposed to the interior space, a third sound generating device 30-3 set at the vehicle window 230, and a fourth sound generating device 30-4 set at the decorative member 130P, and thus can output sound through the vehicle interior material 130 serving as a sound vibration plate, thereby outputting multi-channel surround stereo sound.

[0507] Figure 35 is a graph illustrating sound output characteristics of a sound device according to an exemplary embodiment of the present disclosure.

[0508] exist Figure 35 In , the horizontal axis represents frequency in Hertz (Hz), and the vertical axis represents sound pressure level (SPL) in decibels (dB). Figure 35 In the figure, the thick solid line represents the exemplary embodiment of the present disclosure based on Figures 3 to 6 The dotted line represents the sound output characteristics of the vibration of each of the first sound generating part and the second sound generating part in the sound device shown in FIG. Figures 3 to 6 The dot-dash line represents the sound output characteristics of the vibration of the second sound generating portion in the sound device shown in FIG. Figures 3 to 6 The sound output characteristics of the vibration of the first sound generating section in the sound device shown.

[0509] Sound output characteristics can be measured using a sound analysis device. The sound analysis device may include a control PC, a sound card for transmitting and receiving sound, an amplifier for amplifying the sound generated by the sound card and transmitting it to the sound device, and a microphone for collecting sound generated by the device based on the operation of the vibration device. The sound collected by the microphone is input to the control PC via the sound card, and the sound is analyzed in a control program to analyze the sound of the device.

[0510] The sound output characteristics were measured in an anechoic chamber that was closed in all directions. During the measurement, the applied frequency signal was a sinusoidal sweep within the range of 10 Hz to 20 kHz, and the measurement results were smoothed by 1 / 6 octave. The separation distance between the device and the microphone was adjusted to 30 cm. However, the method for measuring the sound output characteristics may not be limited to this.

[0511] refer to Figure 35, compared with the dot-dash line, it can be seen that the dotted line has a relatively high sound pressure level in frequencies (or tonal vocal bands) of about 350 Hz to about 1 kHz and about 2.8 kHz or higher, and has a relatively low sound pressure level in frequencies (or tonal vocal bands) of about 350 Hz or lower and about 1 kHz to about 2.8 kHz. Compared with the dot-dash line, it can be seen that the thick solid line has a relatively high sound pressure level in frequencies (or tonal vocal bands) of about 4 kHz or lower, and has a relatively low sound pressure level in frequencies (or tonal vocal bands) of about 4 kHz or higher. Compared with the dot-dash line, it can be seen that the thick solid line has a similar sound pressure level in frequencies (or tonal vocal bands) of about 100 Hz or lower, and has a relatively high sound pressure level in frequencies (or tonal vocal bands) of about 100 Hz to about 10 kHz.

[0512] According to an exemplary embodiment of the present disclosure, the sound device can output (or generate) sound based on the vibration of the first sound generating part or the vibration of the second sound generating part. For example, the sound device according to an exemplary embodiment of the present disclosure can output (or generate) sound with enhanced sound pressure level characteristics of a mid-to-high pitch vocal range (e.g., a pitch vocal range of approximately 2.8 kHz or higher) based only on the vibration of the first sound generating part, and can output (or generate) sound with enhanced sound pressure level characteristics of a low pitch vocal range (e.g., a pitch vocal range of approximately 350 Hz or lower) based only on the vibration of the second sound generating part. In particular, the sound device according to an exemplary embodiment of the present disclosure can output (or generate) sound with enhanced sound pressure level characteristics of a low pitch vocal range and a mid-to-high pitch vocal range based on the vibration of all of the first sound generating part and the second sound generating part.

[0513] Therefore, in the sound device according to the exemplary embodiment of the present disclosure, the sound pressure level characteristics and / or sound characteristics of the high-pitched vocal range can be enhanced (or increased) by the first sound generating portion having a four-side fixed structure, and the sound pressure level characteristics and / or sound characteristics of each of the low-pitched vocal range and the mid-high-pitched vocal range can be enhanced (or increased) by the second sound generating portion having a double short-side fixed structure, thereby achieving a wide sound reproduction band. In addition, the sound device according to the exemplary embodiment of the present disclosure can output sound based on the frequency (or pitch vocal range) through the vibration of one or more of the first sound generating portion and the second sound generating portion, thereby enhancing the sound pressure level characteristics and / or sound characteristics in the desired pitch vocal range (or frequency).

[0514] Figure 36 is a graph illustrating sound output characteristics of a sound device according to an exemplary embodiment of the present disclosure.

[0515] exist Figure 36In , the horizontal axis represents frequency in Hertz (Hz), and the vertical axis represents sound pressure level (SPL) in decibels (dB). Figure 36 The dotted line indicates Figures 3 to 6 The sound output characteristics of the sound device according to the exemplary embodiment (or first exemplary embodiment) of the present disclosure are shown in FIG. Figures 9 to 11 The dot-dash line indicates the sound output characteristics of the sound device according to another exemplary embodiment (or second exemplary embodiment) of the present disclosure. Figure 13 and Figure 14 The sound output characteristics of the sound device according to another exemplary embodiment (or third exemplary embodiment) of the present disclosure are shown in FIG. The method for measuring the sound output characteristics can be the same as that for the above-mentioned Figure 35 The descriptions are basically the same, so the repeated descriptions are omitted.

[0516] refer to Figure 36 , compared to the dotted line, in each of the dashed line and the thick solid line, it can be seen that the sound pressure level increases in frequencies (or tonal vocal ranges) of about 200 Hz or less. For example, it can be seen that as the rotation angle (or tilt angle) between the first sound generating portion and the second sound generating portion gradually increases within the range of an acute angle, the sound pressure level increases in frequencies (or tonal vocal ranges) of about 200 Hz or less, and thus the valley is improved.

[0517] Therefore, in the sound device according to other exemplary embodiments of the present disclosure, based on the rotational arrangement of the first sound generating part and the second sound generating part, the sound pressure level characteristics and / or sound characteristics can be enhanced in frequencies (or tonal vocal bands) of about 200 Hz or lower, thereby improving the valley.

[0518] Figure 37 : is a graph showing sound output characteristics of a sound device according to an exemplary embodiment of the present disclosure and an experimental example.

[0519] exist Figure 37 In , the horizontal axis represents frequency in Hertz (Hz), and the vertical axis represents sound pressure level (SPL) in decibels (dB). Figure 37 The thick solid line indicates Figure 22 The dotted line represents the sound output characteristics of the sound device according to another exemplary embodiment of the present disclosure. The dotted line represents the sound output characteristics of the sound device according to the experimental example, which includes the first sound generating part and the housing and the second sound generating part is already Figure 22 The sound output characteristics of the sound device removed from the sound device according to another exemplary embodiment of the present disclosure are shown. The method for measuring the sound output characteristics can be the same as that for the above Figure 35 The descriptions of are basically the same, and therefore their repeated descriptions are omitted.

[0520] refer to Figure 37 , compared with the dotted line, it can be seen that the thick solid line has a relatively high sound pressure level in frequencies (or tonal vocal bands) of about 300 Hz or lower, and has a similar sound pressure level in frequencies (or tonal vocal bands) of about 300 Hz or higher.

[0521] Therefore, a sound device according to another exemplary embodiment of the present disclosure may include a first sound generating part having a four-side fixed structure and a second sound generating part having a double short-side fixed structure, thereby enhancing (or increasing) the sound pressure level characteristics and / or sound characteristics of each of the low-pitched vocal band and the middle and high-pitched vocal band, thereby achieving a wide sound reproduction band.

[0522] A sound device and a vehicle device including the sound device according to one or more exemplary embodiments of the present disclosure are described below.

[0523] According to one or more exemplary embodiments of the present disclosure, a sound device may include a first sound generating part, a second sound generating part spaced apart from the first sound generating part, a coupling member partially disposed between the first sound generating part and the second sound generating part, and a connecting member disposed along a rear peripheral portion of the first sound generating part.

[0524] According to one or more exemplary embodiments of the present disclosure, the sound device may further include an air gap partially provided between peripheral portions of the first sound generating part and the second sound generating part.

[0525] According to one or more exemplary embodiments of the present disclosure, the air gap may be in at least a portion of a region between peripheral portions of the first sound generating portion and the second sound generating portion adjacent to the long sides.

[0526] According to one or more exemplary embodiments of the present disclosure, a connecting member may be provided between peripheral portions of the first and second sound generating parts adjacent to the short sides, but may not be provided between peripheral portions of the first and second sound generating parts adjacent to the long sides.

[0527] According to one or more exemplary embodiments of the present disclosure, a first sound generating unit may include a first vibration member and a first vibration device connected to the first vibration member, the first vibration device being configured to vibrate the first vibration member. The second sound generating unit may include a second vibration member and a second vibration device connected to the second vibration member, the second vibration device being configured to vibrate the second vibration member. A coupling member may be partially disposed between the first vibration member and the second vibration member.

[0528] According to one or more exemplary embodiments of the present disclosure, the coupling member may be provided between peripheral portions of the first and second vibration members adjacent to the short sides, but may not be provided between peripheral portions of the first and second vibration members adjacent to the long sides.

[0529] According to one or more exemplary embodiments of the present disclosure, the connecting member may include: a first connecting member, the first connecting member being located between peripheral portions of the first vibration member and the second vibration member adjacent to the first short side; and a second connecting member, the second connecting member being located between peripheral portions of the first vibration member and the second vibration member adjacent to the second short side.

[0530] According to one or more exemplary embodiments of the present disclosure, the sound device may further include: a first air gap located between peripheral portions of the first vibration member and the second vibration member adjacent to the first long side; and a second air gap located between peripheral portions of the first vibration member and the second vibration member adjacent to the second long side.

[0531] According to one or more exemplary embodiments of the present disclosure, the first vibration member may have a size larger than that of the second vibration member.A long side length direction of the first vibration device may intersect with a long side length direction of the second vibration device.

[0532] According to one or more exemplary embodiments of the present disclosure, each of the first and second vibration members may include a first surface and a second surface opposite the first surface. The first vibration device may include one or more vibration generators connected to one or more of the first and second surfaces of the first vibration member. The second vibration device may include one or more vibration generators connected to one or more of the first and second surfaces of the second vibration member.

[0533] According to one or more exemplary embodiments of the present disclosure, the one or more vibration generators of the first vibration device and the second vibration device may include: a vibration part, the vibration part including a piezoelectric material; a first electrode portion, the first electrode portion being located at a first surface of the vibration part; and a second electrode portion, the second electrode portion being located at a second surface different from the first surface of the vibration part.

[0534] According to one or more exemplary embodiments of the present disclosure, the vibration part may include: a plurality of inorganic material portions including a piezoelectric material; and an organic material portion between the plurality of inorganic material portions.

[0535] According to one or more exemplary embodiments of the present disclosure, the one or more vibration generators of the first vibration device and the second vibration device may further include a first cover member at the first electrode portion and a second cover member at the second electrode portion.

[0536] According to one or more embodiments of the present disclosure, the one or more vibration generators of each of the first and second vibration devices may further include an intermediate member between the first and second cover members, and the intermediate member is an adhesive member or a connecting member.

[0537] According to one or more exemplary embodiments of the present disclosure, the one or more vibration generators of each of the first and second vibration devices may further include a signal supply member electrically connected to the first and second electrode portions, and a portion of the signal supply member may be accommodated between the first and second cover members.

[0538] According to one or more exemplary embodiments of the present disclosure, each of the first and second vibration members may include a first surface and a second surface opposite the first surface. The first vibration device may include a plurality of vibrators stacked and connected to one or more of the first and second surfaces of the first vibration member. The second vibration device may include a plurality of vibrators stacked and connected to one or more of the first and second surfaces of the second vibration member.

[0539] According to one or more exemplary embodiments of the present disclosure, a first vibration device may include a first vibration generator and a second vibration generator overlapping each other with a first vibration member therebetween. A second vibration device may include a third vibration generator and a fourth vibration generator overlapping each other with a second vibration member therebetween.

[0540] According to one or more exemplary embodiments of the present disclosure, the first vibration member may have a size larger than that of the second vibration member. The long side length direction of each of the first and second vibration generators may intersect with the long side length direction of each of the third and fourth vibration generators.

[0541] According to one or more exemplary embodiments of the present disclosure, one or more of the first vibration member and the second vibration member may include a metal material, or may include one or more materials of wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather.

[0542] According to one or more exemplary embodiments of the present disclosure, the connection member may not overlap with the first vibration device.

[0543] According to one or more exemplary embodiments of the present disclosure, the connection member may be connected to the rear peripheral portion of the first vibration member.

[0544] According to one or more exemplary embodiments of the present disclosure, the sound device may further include a housing having an interior space located between the first vibration member and the connecting member, and an intermediate connecting member located between the first vibration member and the housing. The first vibration member may be configured to cover the interior space of the housing. The connecting member may be connected to a rear peripheral portion of the housing.

[0545] According to one or more exemplary embodiments of the present disclosure, the housing may include a plate spaced apart from the first vibration device and a sidewall connected to the plate to form the inner space. An intermediate coupling member may be between the first vibration member and the sidewall of the housing.

[0546] According to one or more exemplary embodiments of the present disclosure, the housing may further include an opening portion connected to the internal space and overlapping the first vibration device.

[0547] According to one or more embodiments of the present disclosure, the housing may further include an inclined surface configured to be inclined between an inner side surface of the housing and the opening portion.

[0548] A vehicle device according to one or more exemplary embodiments of the present disclosure may include an interior material exposed to an interior space, and at least one or more sound generating devices connected to the interior material and configured to output sound to the interior space. The at least one or more sound generating devices may include a sound device. The sound device may include a first sound generating portion, a second sound generating portion spaced apart from the first sound generating portion, a coupling member partially disposed between the first sound generating portion and the second sound generating portion, and a connecting member disposed along a rear peripheral portion of the first sound generating portion. The interior material may be connected to the connecting member of the sound device.

[0549] According to one or more exemplary embodiments of the present disclosure, the vehicle apparatus may further include a gap space provided between the interior material and the first sound generating portion by a connection member of the sound apparatus.

[0550] According to one or more exemplary embodiments of the present disclosure, the interior material may include one or more holes connected to the gap space.

[0551] According to one or more exemplary embodiments of the present disclosure, the sound device may include a housing having an interior space between the first sound generating portion and the connecting member, and an intermediate connecting member between the first sound generating portion and the housing. The connecting member may be between an interior material and a rear peripheral portion of the housing.

[0552] According to one or more exemplary embodiments of the present disclosure, the housing may include a plate spaced apart from the first sound generating part and a sidewall connected to the plate to form the inner space. An intermediate coupling member may be between a peripheral portion of the first sound generating part and the sidewall of the housing.

[0553] According to one or more exemplary embodiments of the present disclosure, the housing may further include an opening portion located at the plate and connected to the internal space.

[0554] According to one or more exemplary embodiments of the present disclosure, the interior material may include one or more opening holes overlapping with the opening portion of the housing.

[0555] According to one or more exemplary embodiments of the present disclosure, the interior material may include an opening hole connected to the opening portion of the housing. The housing may further include a protrusion protruding from the housing to surround the opening portion and configured to be received in the opening hole.

[0556] According to one or more exemplary embodiments of the present disclosure, the interior material may include one or more materials of metal, wood, rubber, plastic, carbon, glass, fiber, cloth, paper, mirror, and leather.

[0557] According to one or more exemplary embodiments of the present disclosure, the interior material may include at least one or more of an instrument panel, a pillar interior material, a roof interior material, a door interior material, a seat interior material, a handle interior material, a floor interior material, a rear package interior material, an overhead console, a rearview mirror, a glove box, a decorative member, and a sun visor. The at least one or more sound generating devices may be configured to vibrate at least one or more of the instrument panel, the pillar interior material, the roof interior material, the door interior material, the seat interior material, the handle interior material, the floor interior material, a rear package interior material, an overhead console, a rearview mirror, a glove box, a decorative member, and a sun visor to generate sound.

[0558] A sound device according to one or more embodiments of the present disclosure may include a first sound generating portion, a second sound generating portion spaced apart from the first sound generating portion, a coupling member partially disposed between the first sound generating portion and the second sound generating portion, and a connecting member disposed along a rear peripheral portion of the first sound generating portion. The sound device may be configured to output a sound of a first tone vocal range based on vibration of one of the first sound generating portion and the second sound generating portion, and to output a sound of a second tone vocal range based on vibration of the other of the first sound generating portion and the second sound generating portion.

[0559] The sound device according to one or more exemplary embodiments of the present disclosure can be applied to or included in the sound device provided at the device (or display device). The device according to the exemplary embodiment of the present disclosure can be applied to or included in mobile devices, video phones, smart watches, watch phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, bending devices, sliding devices, variable devices, electronic notepads, e-books, portable multimedia players (PMP), personal digital assistants (PDAs), MP3 players, mobile medical devices, desktop personal computers (PCs), laptop PCs, netbook computers, workstations, navigation devices, vehicle navigation devices, vehicle display devices, vehicle equipment, theater equipment, theater display equipment, TVs, wallpaper display devices, signage devices, game consoles, notebook computers, monitors, cameras, video cameras, and household appliances. In addition, the sound device according to one or more exemplary embodiments of the present disclosure can be applied to or included in organic light emitting lighting devices or inorganic light emitting lighting devices. When the sound device is applied to or included in a lighting device, the lighting device can act as lighting and speakers. Furthermore, when the sound device according to one or more exemplary embodiments of the present disclosure is applied to or included in a mobile device or the like, the sound device may be one or more of a speaker, a receiver, and a haptic device, but embodiments of the present disclosure are not limited thereto.

[0560] The above-mentioned features, structures, and effects of the present disclosure are included in at least one exemplary embodiment of the present disclosure, but are not limited to only one exemplary embodiment. In addition, the features, structures, and effects described in at least one exemplary embodiment of the present disclosure can be achieved by those skilled in the art through combination or modification of other exemplary embodiments. Therefore, the content associated with the combination and modification should be interpreted as within the scope of the present disclosure.

[0561] CROSS-REFERENCE TO RELATED APPLICATIONS

[0562] This application claims the benefit of and priority to Korean Patent Application No. 10-2024-0019191, filed on February 7, 2024, which is hereby incorporated by reference in its entirety for all purposes as if fully set forth herein.

Claims

1. A sound device, comprising: a first sound generating unit; a second sound generating portion spaced apart from the first sound generating portion; a coupling member partially disposed between the first sound generating portion and the second sound generating portion; as well as A connecting member is provided along a rear peripheral portion of the first sound generating portion. 2 . The sound device according to claim 1 , further comprising an air gap partially provided between a peripheral portion of the second sound generating portion and the first sound generating portion.

3. The sound device according to claim 2, wherein The air gap is located in at least a portion of a region between a peripheral portion of the second sound generating portion adjacent to a long side and the first sound generating portion.

4. The sound device according to claim 1, wherein The coupling member is provided between a peripheral portion of the second sound generating part adjacent to a short side and the first sound generating part, and is not provided between a peripheral portion of the second sound generating part adjacent to a long side and the first sound generating part.

5. The sound device according to claim 1, in, The first sound generating unit includes: a first vibration member; and a first vibration device connected to the first vibration member and configured to vibrate the first vibration member, Wherein, the second sound generating unit includes: a second vibration member; and a second vibration device connected to the second vibration member and configured to vibrate the second vibration member, and Wherein, the coupling member is partially disposed between the first vibration member and the second vibration member.

6. The sound device according to claim 5, wherein The coupling member is provided between a peripheral portion of the second vibration member adjacent to the short side and the first vibration member, and is not provided between a peripheral portion of the second vibration member adjacent to the long side and the first vibration member.

7. The sound device according to claim 5, wherein The connecting member comprises: a first coupling member located between a peripheral portion of the second vibration member adjacent to the first short side and the first vibration member; and A second coupling member is located between a peripheral portion of the second vibration member adjacent to the second short side and the first vibration member.

8. The sound device according to claim 5, further comprising: a first air gap located between a peripheral portion of the second vibrating member adjacent to the first long side and the first vibrating member; as well as A second air gap is located between a peripheral portion of the second vibration member adjacent to the second long side and the first vibration member.

9. A vehicle device, comprising: Exposed interior materials in interior spaces; as well as at least one or more sound generating devices connected to the interior material and configured to output sound to the interior space, wherein the at least one or more sound generating devices include a sound device according to any one of claims 1 to 25, and wherein the interior material is connected to the connection member of the sound device.

10. A sound device, comprising: a first sound generating unit; a second sound generating portion spaced apart from the first sound generating portion; a coupling member partially disposed between the first sound generating portion and the second sound generating portion; as well as a connecting member provided along a rear peripheral portion of the first sound generating portion, The sound device is configured to output the sound of a first tone vocal cord based on the vibration of one of the first sound generating part and the second sound generating part and to output the sound of a second tone vocal cord based on the vibration of the other of the first sound generating part and the second sound generating part.

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