Acoustic apparatus and vehicle apparatus including the same

Abstract

The present disclosure provides an acoustic apparatus and a vehicle apparatus including the same. The acoustic apparatus includes: a vibration member; a support member at a first surface of the vibrating member; a vibrating device configured to vibrate the vibrating member; and a driving circuit portion provided at an internal space between the vibrating member and the support member, and configured to be electrically connected to the vibrating device.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to Korean Patent Application No. 10-2023-0099819 filed in Korea on Jul. 31, 2023, the entire contents of which are expressly incorporated herein by reference into this application. Technical Field

[0003] The present disclosure relates to an acoustic device and a vehicle device including the acoustic device. Background Art

[0004] The speaker applied to the device may be, for example, an actuator including a magnet and a coil. When the actuator is applied to the device, a problem arises that the device is thick. In this regard, piezoelectric devices that can achieve thinning are attracting attention. Summary of the invention

[0005] An acoustic device including a piezoelectric device is lightweight and has low power consumption, and thus is used for various purposes. In a piezoelectric device, the lowest resonance frequency increases due to high rigidity, and due to this, the sound pressure level of a low-pitched vocal range is easily insufficient. Therefore, an acoustic device using a piezoelectric device has a technical problem that the sound pressure level of a low-pitched vocal range is insufficient.

[0006] Therefore, the inventors of the present disclosure have recognized the above-mentioned problems and have conducted extensive research and experiments to enhance the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords of an acoustic device. Based on extensive research and experiments, the inventors of the present disclosure have invented a device for enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords of an acoustic device.

[0007] One or more aspects of the present disclosure are directed to providing an acoustic device that can enhance sound characteristics and / or sound pressure level characteristics of a low-pitched vocal range and a vehicle device including the acoustic device.

[0008] One or more aspects of the present disclosure are directed to providing an acoustic device that may be capable of outputting a sound having a sound pressure level of 60 dB or more in a sound band of 300 Hz or more or a virtual engine sound and a vehicle device including the same.

[0009] Additional features, advantages, and aspects of the present disclosure are partially described in the present disclosure, and will also be apparent from the present disclosure, or can be learned by practicing the inventive concepts provided herein. Other features, advantages, and aspects of the present disclosure can be realized and obtained by the description and claims thereof and the accompanying drawings provided in the present disclosure or derivable therefrom.

[0010] To achieve these and other advantages and aspects of the present disclosure, as embodied and broadly described herein, in one or more aspects, an acoustic device includes: a vibration member; a supporting member at a first surface of the vibration member; a vibration device configured to vibrate the vibration member; and a drive circuit portion disposed at an internal space between the vibration member and the supporting member and configured to be electrically connected to the vibration device.

[0011] In one or more aspects, the vehicle device may include: an external material; an internal material covering the external material; and one or more sound generating devices configured at one or more of the external material, the internal material, and between the external material and the internal material to output sound. The one or more sound generating devices may include an acoustic device. The acoustic device may include: a vibration member; a support member, the support member is at a first surface of the vibration member; a vibration device, the vibration device is configured to vibrate the vibration member; and a drive circuit unit, the drive circuit unit is disposed at the internal space between the vibration member and the support member, and is configured to be electrically connected to the vibration device.

[0012] In one or more aspects, the vehicle device may include: a vehicle body bottom frame; and one or more virtual engine sound devices mounted to the vehicle body bottom frame. The one or more virtual engine sound devices may include an acoustic device. The acoustic device may include: a vibration member; a support member, the support member is at a first surface of the vibration member; a vibration device, the vibration device is configured to vibrate the vibration member; and a drive circuit portion, the drive circuit portion is disposed at an internal space between the vibration member and the support member, and is configured to be electrically connected to the vibration device.

[0013] In one or more aspects, the vehicle equipment may include: an external material; an internal material covering the external material; and one or more acoustic devices as described above configured at one or more of the external material, the internal material, and between the external material and the internal material to output sound.

[0014] According to one or more embodiments of the present disclosure, an acoustic device that can enhance sound characteristics and / or sound pressure level characteristics of a low-pitched vocal range and a vehicle device including the acoustic device may be provided.

[0015] According to one or more embodiments of the present disclosure, an acoustic device that can output a sound having a sound pressure level of 60 dB or more in a tone band of 300 Hz or more or a virtual engine sound and a vehicle device including the same may be provided.

[0016] According to one or more embodiments of the present disclosure, an acoustic device that can be lightweight and can have a thin thickness can be provided, and a vehicle device including the acoustic device can be provided, which can output sound with a wide directivity angle or a non-directional angle or a virtual engine sound.

[0017] Other systems, methods, features, and advantages will be or will become apparent to one skilled in the art upon review of the following figures and detailed description. It is intended that all such additional systems, methods, features, and advantages be included within this specification, be within the scope of the present disclosure, and be protected by the appended claims. Nothing in this section should be construed as limiting those claims. Other aspects and advantages are discussed below in conjunction with aspects of the present 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. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this disclosure, illustrate aspects and embodiments of the disclosure and together with the description serve to explain the principles of the disclosure.

[0020] Figure 1 is a perspective view showing an acoustic device according to an embodiment of the present disclosure.

[0021] Figure 2 According to the embodiments of the present disclosure Figure 1 A cross-sectional view taken along line II' is shown.

[0022] Figure 3 is an exploded perspective view showing an acoustic device according to an embodiment of the present disclosure.

[0023] Figure 4 According to the embodiments of the present disclosure Figure 1 An enlarged view of portion "A" is shown.

[0024] Figure 5 According to the embodiments of the present disclosure Figure 4 A cross-sectional view taken along line II-II' is shown.

[0025] Figure 6 According to the embodiments of the present disclosure Figure 1 Another enlarged view of portion "A" is shown.

[0026] Figure 7 According to the embodiments of the present disclosure Figure 6 A cross-sectional view taken along line III-III' is shown.

[0027] Figure 8 According to the embodiments of the present disclosure Figure 1 Another cross-sectional view taken along line II' is shown.

[0028] Fig. 9 is a perspective view showing an acoustic device according to another embodiment of the present disclosure.

[0029] Fig.10 is an exploded perspective view showing an acoustic device according to another embodiment of the present disclosure.

[0030] Fig.11 Another embodiment of the present disclosure is shown. Fig. 9 and Fig.10 A plan view of the vent and water blocking member shown.

[0031] Fig.12 is a perspective view showing an acoustic device according to another embodiment of the present disclosure.

[0032] Fig.13 According to the embodiments of the present disclosure Fig.12 A cross-sectional view taken along line IV-IV' is shown.

[0033] Fig.14 is an exploded perspective view showing an acoustic device according to another embodiment of the present disclosure.

[0034] Fig.15 According to the embodiments of the present disclosure Fig.14 A cross-sectional view taken along line V-V' is shown.

[0035] Fig.16 is a diagram showing an embodiment according to the present disclosure Fig.14 and Fig.15 A plan view of a printed circuit board and one or more connecting holes is shown.

[0036] Fig.17 is a perspective view showing an acoustic device according to another embodiment of the present disclosure.

[0037] Fig.18 According to the embodiments of the present disclosure Fig.17 A cross-sectional view taken along line VI-VI' is shown.

[0038] Fig.19 is an exploded perspective view showing an acoustic device according to another embodiment of the present disclosure.

[0039] Fig. 20 According to the embodiments of the present disclosure Fig.17 Another cross-sectional view taken along line VI-VI' is shown.

[0040] Fig.21 According to another embodiment of the present disclosure, Figure 1 Another cross-sectional view taken along line II' is shown.

[0041] Fig. 22 is an exploded perspective view showing an acoustic device according to another embodiment of the present disclosure.

[0042] Fig.23 is a perspective view showing a vibration device according to an embodiment of the present disclosure.

[0043] Fig.24 According to the embodiments of the present disclosure Fig.23 A cross-sectional view taken along line VII-VII' is shown.

[0044] Fig.25 According to the embodiments of the present disclosure Fig.23 A cross-sectional view taken along line VIII-VIII' is shown.

[0045] Fig.26 is a perspective view showing a vibration layer according to another embodiment of the present disclosure.

[0046] Fig. 27 is a perspective view showing a vibration layer according to another embodiment of the present disclosure.

[0047] Fig.28 is an overview diagram showing a vibration device according to another embodiment of the present disclosure.

[0048] Fig.29 is an overview diagram showing a vehicle device according to an embodiment of the present disclosure.

[0049] Fig.30 is a cross-sectional view showing a vehicle apparatus according to an embodiment of the present disclosure.

[0050] Fig.31 is an overview diagram showing an output direction of a virtual engine sound output from a virtual engine sound device according to an embodiment of the present disclosure.

[0051] Fig.32 is a graph showing sound output characteristics of an acoustic device according to an embodiment of the present disclosure.

[0052] Throughout the drawings and detailed description, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and / or convenience, the sizes, lengths, and thicknesses of layers, regions, and elements and their descriptions may be exaggerated. DETAILED DESCRIPTION

[0053] Reference is now made in detail to various aspects of the present disclosure, examples of which may be illustrated in the accompanying drawings. In the following description, when a detailed description of a known method, function, structure, or configuration may unnecessarily obscure various aspects of the present disclosure, a detailed description of such known function or configuration may be omitted for the sake of brevity. In addition, repeated descriptions may be omitted for the sake of brevity. The described progression of processing steps and / or operations is a non-limiting example.

[0054] The order of steps and / or operations is not limited to the order set forth herein, and may be changed to occur in an order different from that described herein, except for steps and / or operations that must occur in a particular order. In one or more examples, two operations in succession may be performed substantially simultaneously, or the two operations may be performed in a reverse order or in a different order depending on the functions or operations involved.

[0055] Unless otherwise stated, even if the same reference numerals are shown in different figures, they may refer to the same elements throughout. Unless otherwise stated, the same reference numerals may be used to refer to the same or substantially the same elements throughout the specification and drawings. In one or more aspects, unless otherwise stated, the same elements (or elements with the same names) in different figures may have the same or substantially the same functions and properties. The names of the various elements used in the following description are selected for convenience only and may therefore differ from the names used in the actual product.

[0056] By referring to the various aspects described in the accompanying drawings, the advantages and features of the present disclosure and the implementation methods thereof are explained. However, the present disclosure can be embodied in different forms and should not be construed as being limited to the example aspects set forth herein. On the contrary, 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 concept, without limiting the scope of protection of the present disclosure.

[0057] The shapes, dimensions (e.g., size, length, width, height, thickness, position, radius, diameter, and area), proportions, ratios, angles, numbers, number of elements, etc. disclosed herein, including those shown in the drawings, are merely examples, and therefore, the disclosure is not limited to the details shown. However, it should be noted that the relative sizes of the components shown in the drawings are part of the disclosure.

[0058] When terms such as "including", "having", "comprising", "containing", "consisting of", "made of", "formed of", "composed of", etc. are used with respect to one or more elements (e.g., layers, films, regions, parts, sections, components, parts, areas, regions, parts, steps, operations, etc.), one or more other elements may be added unless terms such as "only" are used. The terms used in the present disclosure are only used to describe specific example aspects and are not intended to limit the scope of the present disclosure. Unless the context clearly indicates otherwise, terms in the singular may include plural forms.

[0059] Unless otherwise stated, the word "exemplary" is used to mean serving as an example or illustration. An embodiment is an example embodiment. An aspect is an example aspect. Herein, in one or more implementations, "embodiment," "aspect," "example," etc. should not be construed as being superior or preferred over other implementations. Unless otherwise stated, an aspect, an example, an example aspect, etc. may refer to one or more aspects, one or more examples, one or more example aspects, etc. In addition, the term "may" encompasses all meanings and coverage of the term "can."

[0060] In one or more aspects, unless otherwise expressly stated, an element, feature, or corresponding information (e.g., level, range, dimension, size, etc.) is interpreted as including an error or tolerance range, even if no explicit description of such error or tolerance range is provided. The error or tolerance range may be caused by various factors (e.g., process factors, internal or external influences, noise, etc.). When interpreting a numerical value, unless otherwise expressly stated, the value is interpreted as including an error range.

[0061] When describing a positional relationship, when describing the positional relationship between two components (e.g., layers, films, regions, components, parts, etc.) using, for example, “on”, “over”, “on top of”, “over”, “under”, “above”, “below”, “near”, “near”, “near”, “beside”, “near”, “on the side or on”, etc., one or more other components may be located between the two components unless more restrictive terms such as “immediately adjacent”, “directly” or “close to” are used. For example, when a structure is described as being relative to another structure as follows: When referring to the positions: "on", "above", "on the top of", "above", "below", "above", "below", "below", "near", "close", "adjacent", "beside", "near", "to the side or on", etc., the description should be interpreted to include the situation where the structures are in contact with each other and the situation where one or more additional structures are disposed or inserted therebetween. In addition, the terms "front", "back", "back", "left", "right", "top", "bottom", "downward", "upward", "upper", "lower", "up", "down", "column", "row", "vertical", "horizontal", etc. refer to any reference system.

[0062] Spatially relative terms such as "below", "below", "lower", "above", "upper", etc. can be used to describe the correlation between various elements (e.g., layers, films, regions, components, parts, etc.) as shown. Spatially relative terms should be understood as terms that include different orientations of elements in use or operation in addition to the orientations depicted in the drawings. For example, if the elements shown in the drawings are turned over, the elements described as being "below" or "below" other elements will be oriented to be "above" the other elements. Therefore, the term "below" (which is an example term) can include all directions of "above" and "below". Similarly, the exemplary terms "above" or "on" can include both directions of "above" and "below".

[0063] When describing a temporal relationship, when the temporal order is described as, for example, "after", "subsequently", "next", "before", "previously", "in front of", etc., discontinuity or non-sequential situations may be included, and thus one or more other events may occur in between, unless more restrictive terms such as "just after", "immediately" or "directly" are used.

[0064] Terms such as "below," "lower," "above," "upper," etc. may be used herein to describe the relationship between elements shown in the drawings. It should be understood that these terms are spatially relative and based on the orientation depicted in the drawings.

[0065] It should be understood that although the terms "first", "second", etc. can be used to describe various elements (e.g., layers, films, regions, parts, cross-sections, components, parts, regions, districts, parts, steps, operations, etc.) in this article, these elements should not be limited by these terms, for example, not limited by any particular order, sequence, priority or number of elements. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present disclosure, the first element can represent the second element, and similarly, the second element can represent the first element. In addition, without departing from the scope of the present disclosure, the first element, the second element, etc. can be arbitrarily named according to the convenience of those skilled in the art. For the sake of clarity, the function or structure of these elements (e.g., the first element, the second element, etc.) is not limited by the ordinal number or name in front of the element. In addition, the first element can include one or more first elements. Similarly, the second element, etc. can include one or more second elements, etc.

[0066] 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 these terms are not used to limit the nature, basis, order, sequence or number of the elements.

[0067] When an element (for example, a layer, a film, a region, a component, a part, etc.) is described as being “connected,” “coupled,” “attached,” “adhered,” etc. to another element, unless otherwise specified, the element may not only be directly connected, coupled, attached, adhered, etc. to the other element but may also be indirectly connected, coupled, attached, adhered, etc. to the other element by disposing or inserting one or more intervening elements between the elements.

[0068] When an element (for example, a layer, film, region, component, part, etc.) is “contacted”, “overlapped”, etc. with another element, unless otherwise specified, the element may not only be directly in contact with, overlapped, etc. with the other element, but may also be indirectly in contact with, overlapped, etc. with the other element by having one or more intervening elements disposed or inserted between the elements.

[0069] Phrases where an element (e.g., a layer, a film, a region, a component, a portion, etc.) is "provided," "set," "connected," "coupled," etc. in, on, with, or to another element may be understood to mean, for example, that at least a portion of the element is provided, set, connected, coupled, etc. in, on, with, or to at least a portion of another element, or that the entire element is provided, set, connected, coupled, etc. in, on, with, or to another element. Phrases where an element (e.g., a layer, a film, a region, a component, a portion, etc.) "contacts," "overlaps," etc. with another element may be understood to mean, for example, that at least a portion of the element contacts, overlaps, etc. with at least a portion of another element, that the entire element contacts, overlaps, etc. with at least a portion of another element, or that at least a portion of the element contacts, overlaps, etc. with the entirety of another element.

[0070] Terms such as "row" or "direction" should not be interpreted solely based on the geometric relationship of the corresponding rows or directions being parallel or perpendicular to each other. Such terms may refer to a wider range of lines or directions: within the wider range of lines or directions, the components of the present disclosure can operate functionally. For example, terms "first direction", "second direction", etc., such as directions parallel or perpendicular to the "x-axis", "y-axis", or "z-axis", should not be interpreted solely based on the geometric relationship of the corresponding directions being parallel or perpendicular to each other, and may refer to directions with wider directivity within the range within which the components of the present disclosure can operate functionally.

[0071] 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, each of the phrases "at least one of the first, second, or third items" and "at least one of the first, second, and third items" can mean: (i) a combination of items provided by one or more of the first, second, and third items; or (ii) only one of the first, second, or third items.

[0072] The expression of a first element, a second element “and / or” a third element should be understood to cover one of the first element, the second element, and the third element, and any and all combinations of the first element, the second element, and the third element. As an example, A, B, and / or C covers only A; only B; only C; any one of A, B, and C (e.g., A, B, or C); some combinations of A, B, and C (e.g., A and B; A and C; or B and C); and all of A, B, and C. In addition, the expression “A / B” may be understood as A and / or B. For example, the expression “A / B” may refer to only A; only B; A or B; or A and B.

[0073] In one or more aspects, unless otherwise stated, for convenience, the terms "between" and "wherein" can be simply used interchangeably. For example, the expression "between multiple elements" can be understood as in multiple elements. In another example, the expression "in multiple elements" can be understood as between multiple elements. In one or more examples, the number of elements can be two. In one or more examples, the number of elements can be more than two. In addition, when an element (e.g., a layer, a film, a region, a component, a part, etc.) is referred to as being "between" at least two elements, the element can be the only element between the at least two elements, or one or more intervening elements can also be present between the at least two elements.

[0074] In one or more aspects, unless otherwise specified, for convenience, the phrases "each other" and "mutually" may be simply used interchangeably. For example, the expression "different from each other" may be understood as different from each other. In another example, the expression "different from each other" may be understood as different from each other. In one or more examples, the number of elements involved in the foregoing statements may be two. In one or more examples, the number of elements involved in the foregoing statements may be more than two.

[0075] In one or more aspects, the phrases "one or more of" and "one or more of" may be used simply interchangeably for convenience unless otherwise indicated.

[0076] The term "or" means an inclusive or rather than an exclusive or. For example, unless otherwise specified or clear from the context, the statement "x uses a or b" means any of the natural inclusive permutations. For example, "a or b" may mean "a", "b", or "a and b". For example, "a, b or c" may mean "a", "b", "c", "a and b", "b and c", "a and c", or "a, b, and c".

[0077] The features of the various aspects of the present disclosure may be coupled or combined in part or in their entirety, may be technically associated with each other, and may be operated, linked or driven together in various ways. The various aspects of the present disclosure may be implemented or performed independently of one another, or may be implemented or performed together with a common reliance or related relationship. In one or more aspects, the parts of each device according to the various aspects of the present disclosure may be operationally coupled and configured.

[0078] Unless otherwise defined, the terms (including technical and scientific terms) used herein have the same meaning as commonly understood by a person of ordinary skill in the art to which the exemplary aspects belong. It should also be understood that terms (such as those defined in commonly used dictionaries) should be interpreted as having, for example, a meaning consistent with their meaning in the relevant technical context, and should not be interpreted as an idealized or overly formal meaning, unless otherwise explicitly defined herein.

[0079] The terms used herein have been selected as common terms in the relevant technical field; however, other terms may exist according to the development and / or change of technology, convention, preference of technicians, etc. Therefore, the terms used herein should not be understood as limiting the technical concept, but should be understood as examples of terms used to describe exemplary aspects.

[0080] In addition, in certain cases, the terms may be arbitrarily selected by the applicant, and in this case, their detailed meanings are described herein. Therefore, the terms used in this article should be understood not only based on the term names, but also based on the meanings of the terms and their contents.

[0081] Furthermore, the “X-axis direction”, “Y-axis direction”, and “Z-axis direction” should not be interpreted only by the geometric relationship of being vertical to each other, and may have broader directivities within the range in which the elements of the present disclosure can functionally function.

[0082] In the following description, various example aspects of the present disclosure are described in detail with reference to the accompanying drawings. With respect to the reference numerals of the elements of each of the accompanying drawings, the same elements may be shown in other drawings, and unless otherwise specified, the same reference numerals may refer to the same elements. The same or similar elements may be represented by the same reference numerals even if they are depicted in different drawings.

[0083] In addition, for ease of description, the proportions, dimensions, sizes and thicknesses of each of the elements shown in the drawings may be different from the actual proportions, dimensions, sizes and thicknesses, and therefore, aspects of the present disclosure are not limited to the proportions, dimensions, sizes and thicknesses shown in the drawings.

[0084] Figure 1 is a perspective view showing an acoustic device according to an embodiment of the present disclosure. Figure 2 According to the embodiments of the present disclosure Figure 1 A cross-sectional view taken along line II' is shown. Figure 3 is an exploded perspective view showing an acoustic device according to an embodiment of the present disclosure.

[0085] Reference Figures 1 to 3, the acoustic device (or sound device) 100 according to the embodiment of the present disclosure may implement or realize a sound device, a sound output device, a vibration device, a vibration generating device, a sound bar, a sound system, a sound device for an electronic device, a sound device for a display, a sound device for a vehicle device, or a sound bar for a vehicle device, etc. For example, a vehicle device (or transportation equipment) may include a vehicle, a car, a train, a ship, or an airplane, but the embodiment of the present disclosure is not limited thereto, and may represent any element to which the acoustic device of the present disclosure may be applied. A vehicle or a vehicle device may be any other entity or element in which the acoustic device of the present application may be applied or used. The acoustic device 100 according to the embodiment of the present disclosure may be configured to be transparent, translucent, or opaque.

[0086] As shown, the acoustic device 100 according to the embodiment of the present disclosure may include a vibration member 110 , a vibration device 130 , a support member 150 , and a driving circuit part 170 .

[0087] The vibration member 110 may generate vibration or may output sound (or sound waves) based on the displacement (or driving) of the vibration device 130. The vibration member 110 may be a vibration object, a passive vibration plate, a vibration panel, a sound plate, a sound panel, a passive vibration panel, a sound output plate, a sound vibration plate, etc., but the embodiments of the present disclosure are not limited thereto.

[0088] The vibration member 110 may include a polygon (including a rectangle or a square), but the embodiments of the present disclosure are not limited thereto. For example, in another embodiment, the vibration member 110 may include a triangular shape, or a shape having at least 5 sides. The vibration member 110 may include a width direction length parallel to the first direction X and a length direction length parallel to the second direction Y. For example, relative to the same plane, the first direction X may be a first horizontal direction or a first horizontal length direction of the vibration member 110, and the second direction Y may be a second horizontal direction or a second horizontal length direction of the vibration member 110 orthogonal to the first direction X.

[0089] The vibration member 110 according to an embodiment of the present disclosure may include a structure having exactly the same thickness, but the embodiments of the present disclosure are not limited thereto. For example, the vibration member 110 may include a plate structure having exactly the same thickness, but the embodiments of the present disclosure are not limited thereto. For example, the vibration member 110 may include a non-planar structure having a convex portion and / or a concave portion.

[0090] According to an embodiment of the present disclosure, the vibration member 110 may include a first surface 110a and a second surface 110b opposite to the first surface 110a. For example, in the vibration member 110, the first surface 110a may be a surface in a direction facing the support member 150 (or a first vertical direction Z1), and the second surface 110b may be a surface in a direction facing opposite to the first surface 110a (or a second vertical direction Z2).

[0091] In addition, the vibration member 110 according to an embodiment of the present disclosure may be configured to be transparent, translucent, or opaque. The vibration member 110 may include a material (or substance) having material properties suitable for outputting sound based on vibration. For example, the vibration member 110 may include one or more materials (or substances) of metal, plastic, fiber reinforced plastic, carbon, and wood, but the embodiments of the present disclosure are not limited thereto.

[0092] According to an embodiment of the present disclosure, the metal material of the vibration member 110 may include any one or more of stainless steel, aluminum (Al), Al alloy, magnesium (Mg), magnesium alloy, and magnesium-lithium (Mg—Li) alloy, but the embodiments of the present disclosure are not limited thereto.

[0093] According to an embodiment of the present disclosure, the plastic material of the vibration member 110 may include polycarbonate, polyethylene terephthalate, polyacrylate, polyethylene naphthalate, polysulfone, polyethersulfone or cycloolefin copolymer, etc., but the embodiment of the present disclosure is not limited thereto. For example, the plastic material of the vibration member 110 may include a styrene material. For example, the styrene material may be an ABS material. The ABS material may be acrylonitrile, butadiene and styrene. However, the embodiment of the present disclosure is not limited thereto.

[0094] According to an embodiment of the present disclosure, the fiber reinforced plastic of the vibration member 110 may be carbon fiber reinforced plastic (CFRP), but the embodiment of the present disclosure is not limited thereto.

[0095] The vibration member 110 according to another embodiment of the present disclosure may be constructed with a porous material. For example, the vibration member 110 may include a microporous plastic material. In another example, the vibration member 110 may be constructed as a microporous polyethylene terephthalate (MCPET) material. The vibration member 110 constructed with MCPET may have the ability to reproduce high original sound due to low density and excellent elastic force, thereby improving the quality of the sound. For example, based on porosity, the vibration member 110 constructed with a porous material may have a relatively large amount of displacement (or bending force) relative to the vibration (or displacement) of the vibration device 130, and therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the vibration member 110 may be improved. Therefore, in the vibration member 110 constructed with a porous material, the decline phenomenon and peak phenomenon in the sound of the low-pitched vocal cords caused by vibration can be reduced, and the sound pressure level of the low-pitched vocal cords can be increased. In addition, in the sound of 1kHz or less generated by the vibration of the vibration member 110, the number of the decline part and the peak part of the sound pressure level can be reduced.

[0096] The vibration device 130 may be configured to vibrate the vibration member 110. The vibration device 130 may be disposed or configured at the vibration member 110. The vibration device 130 may be configured to vibrate (or displace or drive) based on a drive signal (or electrical signal or voice signal) applied thereto so as to vibrate (or displace) the vibration member 110. For example, the vibration device 130 may be an active vibration member, a vibration generator, a vibration structure, a vibrator, a vibration generating device, a sound generator, a sound device, a sound generating structure or a sound generating device, but the embodiments of the present disclosure are not limited thereto.

[0097] The vibration device 130 according to an embodiment of the present disclosure may include a piezoelectric material or an electroactive material having piezoelectric properties. The vibration device 130 may vibrate (or shift) autonomously through the vibration (or displacement) of the piezoelectric material based on a drive signal applied to the piezoelectric material, or may vibrate (or shift) the vibration member 110. For example, the vibration device 130 may alternately repeat contraction and / or expansion to vibrate (or shift or drive) based on the piezoelectric effect (or piezoelectric properties). In addition, when contraction and / or expansion are alternately repeated by the reverse piezoelectric effect, the vibration device 130 may vibrate (or shift or drive) in the vertical direction (or thickness direction) Z1 and Z2. In addition, as described above, the vibration device 130 may include a piezoelectric device.

[0098] The vibration device 130 according to an embodiment of the present disclosure may include a quadrilateral shape or a rectangular shape having a first length parallel to the first direction X and a second length parallel to the second direction Y. For example, the vibration device 130 may be configured to have a size smaller than that of the vibration member 110. The vibration device 130 may be used as a sound generating member or a sound outputting member for outputting sound.

[0099] The acoustic apparatus 100 according to the embodiment of the present disclosure may further include a connection member 120 .

[0100] The connecting member 120 may be disposed or connected between the vibration device 130 and the vibration member 110. The connecting member 120 may be disposed between the vibration device 130 and the vibration member 110, and may connect or couple the vibration device 130 to the vibration member 110. For example, the vibration device 130 may be connected or coupled to the vibration member 110 through the connecting member 120. For example, the vibration device 130 may be connected to the first surface 110a of the vibration member 110 or supported by the first surface 110a of the vibration member 110 through the connecting member 120, but the embodiments of the present disclosure are not limited thereto. For example, the connecting member 120 may be a first connecting member, an adhesive member, or a first adhesive member, but the embodiments of the present disclosure are not limited thereto. In one embodiment of the present disclosure, the connecting member 120 may be directly coupled to the vibration device 130 and the vibration member 110. However, in another embodiment, the connecting member 120 may be connected to the vibration device 130 and the vibration member 110 via an adhesive layer.

[0101] The connection member 120 according to an embodiment of the present disclosure may include an adhesive layer with good attachment or adhesion. For example, the connection member 120 may be configured to include a material including an adhesive layer, and the adhesive layer has good attachment or adhesion relative to each of the first surface 110a of the vibration device 130 and the vibration member 110. For example, the connection member 120 may include a foam pad, a double-sided tape, a double-sided foam pad, a double-sided foam tape, an adhesive, a double-sided adhesive, a double-sided adhesive tape, a double-sided adhesive foam pad or an adhesive sheet, etc., but the embodiments of the present disclosure are not limited thereto. For example, when the connection member 120 includes an adhesive sheet (or adhesive layer), the connection member 120 may only include an adhesive layer or an adhesive layer, without including a base member such as a plastic material.

[0102] The adhesive layer of the connecting member 120 according to the embodiment of the present disclosure may include an adhesive material, such as a pressure sensitive adhesive (PSA), an optically clear adhesive (OCA) or an optically clear resin (OCR), an epoxy resin, an acrylic resin, a silicone resin or a urethane resin, etc., but the embodiment of the present disclosure is not limited thereto. In another embodiment of the present disclosure, the adhesive layer of the connecting member 120 may include an acrylic-based substance (or material), which has the characteristics of relatively good adhesion and high hardness. Therefore, the transmission efficiency of the vibration force (or displacement force) transmitted from the vibration device 130 to the vibration member 110 can be improved.

[0103] The support member 150 may be configured or disposed at the first surface 110a of the vibration member 110. The support member 150 may be configured or disposed to cover the first surface 110a of the vibration member 110. The support member 150 may be configured to support the peripheral portion of the vibration member 110. The support member 150 may be configured to support the peripheral portion of the first surface 110a of the vibration member 110. In addition, the support member 150 may be configured to cover the vibration device 130 and the first surface 110a of the vibration member 110.

[0104] The support member 150 according to an embodiment of the present disclosure may include an internal space 100a surrounding the first surface 110a of the vibration member 110. For example, the support member 150 may be configured to include the internal space 100a and may be connected (or coupled) to the first surface 110a of the vibration member 110. In addition, the acoustic device 100 according to one or more embodiments of the present disclosure may further include an internal space 100a disposed at an area between the vibration member 110 and the support member 150. For example, the acoustic device 100 according to one or more embodiments of the present disclosure may further include an internal space 100a disposed at an area between the first surface 110a of the vibration member 110 and the support member 150. For example, the support member 150 may include a box shape with one side (or upper side) open so as to provide the internal space 100a. In addition, the support member 150 may be a shell, an outer shell, a shell member, a shell, a shell member, a casing, a housing, a sealing member, a sealing cap, a sealing box or a sound box, etc., but the embodiments of the present disclosure are not limited thereto. In addition, the internal space 100a of the acoustic device 100 or the supporting member 150 may be a receiving space, a receiving space, a gap space, an air space, a vibration space, a sound space, a sound box, a sealed space, etc., but the embodiments of the present disclosure are not limited thereto.

[0105] The support member 150 according to an embodiment of the present disclosure may be configured to be transparent, translucent, or opaque. In addition, the support member 150 may include one or more of a metallic material and a non-metallic material (or a composite non-metallic material), but the embodiments of the present disclosure are not limited thereto. In addition, the support member 150 may include one or more of a metallic material, a plastic, and a wood material, but the embodiments of the present disclosure are not limited thereto. The support member 150 may include a material having heat dissipation properties to dissipate the heat generated from the vibration device 130 and / or the drive circuit portion 170.

[0106] The support member 150 according to an embodiment of the present disclosure may include a first support portion 151 and a second support portion 152 .

[0107] The first support portion 151 may be configured (or arranged) to be parallel to the vibration member 110. The first support portion 151 may be configured (or arranged) to be parallel to the vibration member 110 in a manner in which the vibration device 130 is therebetween. The first support portion 151 may be arranged to face the first surface 110a of the vibration member 110. The first support portion 151 may be arranged to cover the first surface 110a of the vibration member 110. The first support portion 151 may be spaced apart from the first surface 110a of the vibration member 110. For example, the first support portion 151 may be spaced apart from the first surface 110a of the vibration member 110 in a manner in which the internal space 100a is therebetween. For example, the first support portion 151 may be a bottom, a ground portion, a bottom plate, a floor, a ceiling portion, a ceiling, a support plate, an outer shell plate, an outer shell bottom, an outer shell ground portion, a shell plate or an outer shell bottom (or an outer shell ceiling portion), etc., but the embodiments of the present disclosure are not limited thereto. However, in another embodiment, the first support portion 151 may not be parallel to the vibration member 110. Furthermore, the thickness of the first supporting portion 151 may be uniform throughout the first supporting portion 151 .

[0108] The second support portion 152 may be configured or disposed at the outer portion of the vibration member 110. The second support portion 152 may be connected to the outer portion of the first support portion 151. For example, the second support portion 152 may include a structure bent from the outer portion of the first support portion 151. For example, the second support portion 152 may be inclined from vertical directions Z1 and Z2 perpendicular to the ground. For example, the support member 150 may include four second support portions 152 connected to each other. For example, the second support portion 152 may be a lateral portion, a side wall, a support side wall, a lateral surface of the housing, a side wall of the housing, a lateral surface of the housing, or a side wall of the housing, but the embodiments of the present disclosure are not limited thereto. In addition, the thickness of the second support portion 152 may be greater than the thickness of the first support portion 151.

[0109] The second support portion 152 may be integrated in the first support portion 151. For example, the first support portion 151 and the second support portion 152 may be integrated (or configured) as one body (single body), and thus, the inner space 100a surrounded by the second support portion 152 may be provided above the first support portion 151. Therefore, the support member 150 may include a box shape in which one side (or upper side or upper portion) is opened by the first support portion 151 and the second support portion 152.

[0110] The support member 150 according to an embodiment of the present disclosure may include an inclined portion (or a ramp portion or an inclined portion) 153 configured between the first support portion 151 and the second support portion 152. The inclined portion 153 may be configured to reduce the size of the first support portion 151 of the support member 150. The inclined portion 153 may be configured to be inclined at a certain angle between the first support portion 151 and the second support portion 152. For example, the inclined portion 153 may be a chamfered portion having a certain angle between the first support portion 151 and the second support portion 152. Therefore, the support member 150 may include the first support portion 151 and the inclined portion 153 protruding from the first support portion 151. In addition, the internal space 100a may also include a protruding space 100b. In addition, the support member 150 may include an internal space (or a first space) 100a surrounded by the second support portion 152 and a protruding space (or a second space) 100b surrounded by the inclined portion 153. For example, the protruding space 100 b may be a circuit arrangement space or a circuit accommodation space, but embodiments of the present disclosure are not limited thereto.

[0111] The support member 150 according to an embodiment of the present disclosure may further include an edge flat portion (or edge plane portion) 154 between the second support portion 152 and the inclined portion 153. The edge flat portion 154 may be configured to be parallel to the first support portion 151. The second support portion 152 may be connected to the outer peripheral portion of the edge flat portion 154, or include a structure bent from the outer peripheral portion of the edge flat portion 154. For example, the edge flat portion 154 may be omitted.

[0112] The support member 150 may be connected or coupled to the vibration member 110 through the coupling member 140. The support member 150 may be connected or coupled to the first surface 110a of the vibration member 110 through the coupling member 140. For example, the support member 150 may be connected or coupled to the outer peripheral portion of the first surface 110a of the vibration member 110 through the coupling member 140.

[0113] The coupling member 140 may be configured to minimize or prevent the vibration of the vibration member 110 from being transmitted to the support member 150. The coupling member 140 may include material properties suitable for blocking vibration. For example, the coupling member 140 may include a material having elasticity (or Young's modulus). For example, the coupling member 140 may include a material having elasticity for vibration absorption (or impact absorption). The coupling member 140 according to an embodiment of the present disclosure may be configured as a polyurethane material or a polyolefin material, but the embodiments of the present disclosure are not limited thereto. In addition, the coupling member 140 may include one or more of a double-sided adhesive member, a double-sided tape, a double-sided foam tape, a double-sided foam pad, and a double-sided buffer tape, but the embodiments of the present disclosure are not limited thereto.

[0114] The coupling member 140 according to an embodiment of the present disclosure may include a waterproof structure or a waterproof member to prevent water from penetrating into the inner space 100a. For example, the coupling member 140 may include one or more of a waterproof tape or a waterproof pad, but the embodiment of the present disclosure is not limited thereto.

[0115] The coupling member 140 according to an embodiment of the present disclosure can prevent physical contact (or friction) between the vibration member 110 and the second support portion 152 of the support member 150, and thus, can prevent the occurrence of noise (or noise sound) caused by the physical contact (or friction force) between the vibration member 110 and the support member 150. For example, the coupling member 140 may be a buffer member, an elastic member, a damping member, a vibration absorbing member, a vibration preventing member, or a vibration blocking member, but the embodiments of the present disclosure are not limited thereto.

[0116] The coupling member 140 according to another embodiment of the present disclosure may be configured to minimize or prevent the vibration of the vibration member 110 from being transmitted to the support member 150, and reduce the reflection of sound waves generated and input based on the vibration of the vibration member 110 to reach the second support portion 152. Therefore, the second support portion 152 does not receive the vibration generated by the vibration member 110.

[0117] The coupling member 140 according to another embodiment of the present disclosure may include a first coupling member 141 and a second coupling member 142 .

[0118] The first coupling member 141 may be disposed at an area between the vibration member 110 and the support member 150. In addition, the first coupling member 141 may be disposed at an area between the vibration member 110 and the second support portion 152 of the support member 150. The first coupling member 141 may be disposed or coupled between a rear peripheral portion of the vibration member 110 and the second support portion 152 of the support member 150. In addition, the first coupling member 141 may be disposed inward (or inside) of the second coupling member 142. The first coupling member 141 may be configured to have a hardness (e.g., modulus or Young's modulus) that is smaller than that of the second coupling member 142. In addition, the first coupling member 141 may include a double-sided polyurethane tape, a double-sided polyurethane foam tape, a double-sided sponge tape, or the like, but embodiments of the present disclosure are not limited thereto.

[0119] The second coupling member 142 may be disposed at an area between the vibration member 110 and the support member 150. For example, the second coupling member 142 may be disposed at an area between the vibration member 110 and the support member 150 to surround the first coupling member 141. For example, the second coupling member 142 may be disposed or coupled between the outer peripheral portion of the first surface 110a of the vibration member 110 and the second support portion 152 of the support member 150 to surround the first coupling member 141. In addition, the second coupling member 142 may be disposed outward (or outside) relative to the first coupling member 141. The second coupling member 142 may be configured to have a hardness (e.g., modulus or Young's modulus) greater than that of the first coupling member 141. In addition, the second coupling member 142 may include a double-sided polyolefin tape, a double-sided polyolefin foam tape, a double-sided acrylic tape, a double-sided acrylic foam tape, or the like, but embodiments of the present disclosure are not limited thereto.

[0120] In addition, in another embodiment, more than two coupling members may be provided. For example, in an embodiment, at least three coupling members may be provided. The first coupling member 141 may be provided at the outermost portion of all coupling members. In addition, the first coupling member 141 may also have the highest hardness among all coupling members. In addition, the closer each coupling member is provided toward the inner space 100a, the lower the hardness of the coupling member may be.

[0121] The coupling member 140 according to another embodiment of the present disclosure can absorb the sound generated and inputted by the first coupling member 141 which is relatively soft and disposed inward relative to the second coupling member 142 which is relatively rigid (or harder) based on the vibration of the vibration member 110, and thus, the reflected sound (or reflected wave) generated by reflection from the coupling member 140 can be minimized. Therefore, each of the highest sound pressure level and the lowest sound pressure level generated in the reproduction frequency band of the sound generated based on the vibration of the vibration member 110 can be reduced, and thus the flatness of the sound pressure level can be reduced. For example, the flatness of the sound pressure level can be the size of the deviation between the highest sound pressure level and the lowest sound pressure level.

[0122] In the coupling member 140 according to another embodiment of the present disclosure, the relatively rigid second coupling member 142 may be disposed inwardly relative to the relatively soft first coupling member 141. Therefore, the sound pressure level in a specific tone vocal band of the sound may be reduced. For example, the sound pressure level in the tone vocal bands of 2kHz to 5kHz and 7kHz to 12kHz may be reduced due to the reflected sound (or reflected wave) generated by reflection from the relatively rigid second coupling member 142. Therefore, when the sound pressure level in the tone vocal bands of 2kHz to 5kHz and 7kHz to 12kHz needs to be reduced based on the shape and size of the vibration member 110, the relatively rigid second coupling member 142 may be disposed inwardly relative to the relatively soft first coupling member 141, and therefore, the flatness of the sound pressure level may be improved based on the reduction of the sound pressure level in the tone vocal bands of 2kHz to 5kHz and 7kHz to 12kHz generated by the second coupling member 142.

[0123] The coupling member 140 according to an embodiment of the present disclosure may include one or more protrusions. The one or more protrusions may be configured on the inner side of the coupling member 140 adjacent to the inner space 100a. For example, the one or more protrusions may have a triangular shape or a sawtooth shape, but the embodiments of the present disclosure are not limited thereto.

[0124] One or more protruding portions may absorb or capture the reflected wave generated by the reflection from the coupling member 140, and thus, the reduction in the sound pressure level characteristics caused by the standing wave generated by the interference of the reflected wave and the traveling wave may be prevented or minimized. For example, the reflected wave reflected from the coupling member 140 based on the vibration of the vibration member 110 may be dispersed or reflected by one or more protruding portions, and thus, the overlap and interference phenomenon between the reflected wave and the traveling wave may be prevented or minimized, thereby preventing or minimizing the occurrence of the standing wave.

[0125] In the coupling member 140 according to another embodiment of the present disclosure, one or more of the first coupling member 141 and the second coupling member 142 may include a waterproof structure or a waterproof member to prevent water from penetrating into the inner space 100a. For example, one or more of the first coupling member 141 and the second coupling member 142 may include one or more of a waterproof tape or a waterproof pad, but the embodiments of the present disclosure are not limited thereto. For example, the first coupling member 141 may be a first waterproof tape, and the second coupling member 142 may be a second waterproof tape. Therefore, water can be prevented from entering the inner space 100a.

[0126] According to another embodiment of the present disclosure, the support member 150 may be connected or coupled to the vibration member 110 by ultrasonic fusion processing without a separate coupling member 140. For example, the support member 150 may be connected or coupled to the first surface 110a of the vibration member 110 by ultrasonic fusion processing without a separate coupling member 140. For example, the support member 150 may be connected or coupled to the outer peripheral portion of the first surface 110a of the vibration member 110 by ultrasonic fusion processing without a separate coupling member 140.

[0127] The driving circuit portion 170 may be housed in the acoustic device 100. The driving circuit portion 170 may be disposed (or housed) in the internal space 100a of the supporting member 150 of the acoustic device 100, and may be connected to be electrically connected to the vibration device 130. For example, the driving circuit portion 170 may be disposed (or housed) at the protruding space 100b of the supporting member 150 or the acoustic device 100. For example, the driving circuit portion 170 may be disposed (or housed) at the protruding space 100b of the supporting member 150 to be spaced apart from the vibration device 130. Therefore, the acoustic device 100 according to one or more embodiments of the present disclosure may be an acoustic device in which a driving circuit is integrated, or an acoustic device in which a driving circuit is embedded.

[0128] The driving circuit unit 170 according to an embodiment of the present disclosure may include a printed circuit board (PCB) 171 .

[0129] The PCB 171 may be disposed (or accommodated) at the protruding space 100b of the supporting member 150 or the acoustic device 100. For example, the PCB 171 may be disposed (or accommodated) at the protruding space 100b of the supporting member 150 to be spaced apart from the vibration device 130. The PCB 171 may be disposed at the supporting member 150 or fixed to the supporting member 150 by the fixing member 160.

[0130] The fixing member 160 may be disposed between the support member 150 and the PCB 171. The fixing member 160 may be disposed between the first support portion 151 of the support member 150 and the PCB 171. The fixing member 160 may be configured to have a certain height relative to the first support portion 151 to separate the PCB 171 from the first support portion 151 by a certain distance. Therefore, the occurrence of acoustic noise (or noise) caused by physical contact (or friction) between the PCB 171 and the first support portion 151 may be prevented.

[0131] As an embodiment of the present disclosure, the fixing member 160 may include a plurality of protrusions (or bosses) protruding from the first support portion 151 of the support member 150. For example, the plurality of protrusions may be configured to support the corner portions of the PCB 171, respectively, but the embodiments of the present disclosure are not limited thereto. For example, the plurality of protrusions may protrude from the inner surface 151a of the first support portion 151 corresponding to each corner portion of the PCB 171 to have a certain height. For example, the PCB 171 may be fixed to the fixing member 160 by a plurality of screws or bolts fastened to the plurality of protrusions. For example, based on the height of each of the plurality of protrusions, the PCB 171 may be spaced apart from the first support portion 151 by a certain distance. In addition, the fixing member 160 may be disposed at any position on the PCB 171. More specifically, the fixing member 160 may be disposed between the upper surface of the PCB 171 and the inner surface 151a of the first support portion 151.

[0132] As another embodiment of the present disclosure, the fixing member 160 may include a plurality of adhesive members (or one or more adhesive members) disposed between the first support portion 151 and the PCB 171. The plurality of adhesive members may be bonded between the outer peripheral portion or each corner portion of the PCB 171 and the inner surface 151a of the first support portion 151. For example, the PCB 171 may be fixed to the first support portion 151 by the plurality of adhesive members. For example, based on the height of each of the plurality of adhesive members, the PCB 171 may be spaced apart from the first support portion 151 by a certain distance.

[0133] Each of the plurality of adhesive members may include a material having adhesive force and elasticity to prevent vibration transmission between the support member 150 and the PCB 171. Each of the plurality of adhesive members may include a material having adhesive force and elasticity. For example, each of the plurality of adhesive members may include one or more of a double-sided tape, a double-sided foam tape, a double-sided foam pad, and a double-sided buffer tape, but embodiments of the present disclosure are not limited thereto.

[0134] The driving circuit part 170 or the PCB 171 according to an embodiment of the present disclosure may include a driving signal generating circuit 172 , a first connector terminal 173 , and a second connector terminal 174 .

[0135] The drive signal generating circuit 172 may be configured at the PCB 171. For example, the drive signal generating circuit 172 may be configured at the first surface 171a of the PCB 171. In addition, the drive signal generating circuit 172 may be configured at the first surface 171a of the PCB 171, and the first surface 171a faces or directly faces the first support portion 151 of the support member 150. In addition, the second surface 171b of the PCB 171 opposite to the first surface 171a may face or directly face the vibration device 130. For example, when the first surface 171a of the PCB 171 including the drive signal generating circuit 172 is arranged to face or directly face the vibration device 130, the sound quality may be degraded due to the reflection of the sound wave by the drive signal generating circuit 172. Therefore, when the second surface 171b of the PCB 171 not provided with the drive signal generating circuit 172 is arranged to face or directly face the vibration device 130, the degradation of the sound quality caused by the reflection of the sound wave by the drive signal generating circuit 172 can be minimized or prevented.

[0136] The driving signal generating circuit 172 may generate a driving signal (or sound signal or vibration signal) DS for vibrating (or displacing or driving) the vibration device 130 based on sound data (or sound signal) input from the host device (or host driving circuit), and supply the driving signal to the vibration device 130 .

[0137] The driving signal generating circuit 172 according to an embodiment of the present disclosure may include an amplifier circuit 172 a .

[0138] The amplifier circuit 172 a may be configured to generate a drive signal (or sound source signal or vibration signal) DS based on sound source data (or sound source signal) input from a host device (or a host driving circuit) and supply the drive signal to the vibration device 130 .

[0139] The amplifier circuit 172a according to the embodiment of the present disclosure may include a preamplifier and a main amplifier. The preamplifier may mainly amplify a sound source signal (or sound source data) to generate an amplified signal. The main amplifier may amplify the amplified signal supplied from the preamplifier to generate a drive signal, and the generated drive signal may be output to the vibration device 130. For example, the drive signal may include a positive drive signal (or a first drive signal) and a negative drive signal (or a second drive signal). Therefore, the vibration device 130 may vibrate (or shift or drive) by the first drive signal and the second drive signal of the drive signal to vibrate the vibration member 110, thereby generating or outputting a sound (or a vibration sound).

[0140] The driving signal generating circuit 172 according to an embodiment of the present disclosure may also include various passive elements and semiconductor integrated circuits configured to generate a driving signal.

[0141] The first connector terminal 173 may be provided (or mounted) at one side (or a portion) of the PCB 171. For example, the first connector terminal 173 may include a plurality of signal input terminals.

[0142] The second connector terminal 174 may be provided (or mounted) on the other side of the PCB 171, and may be electrically connected to the vibration device 130 through the signal supply member 137. For example, the second connector terminal 174 may be provided (or mounted) on the other side of the PCB 171 adjacent to the vibration device 130. For example, the second connector terminal 174 may include a plurality of signal output terminals. Therefore, the drive signal output from the drive signal generating circuit 172 may be supplied to the vibration device 130 through the second connector terminal 174 and the signal supply member 137, and the vibration device 130 may vibrate (or shift or drive) based on the drive signal supplied from the drive signal generating circuit 172 through the second connector terminal 174 and the signal supply member 137 to vibrate the vibration member 110, thereby generating or outputting a sound (or a vibration sound).

[0143] The driving circuit part 170 according to the embodiment of the present disclosure may further include a connection connector 175 .

[0144] The connection connector 175 may be configured to be electrically connected to the PCB 171. A portion of the connection connector 175 may pass through the lateral surface of the support member 150 and may be accommodated in the internal space 100a. For example, the connection connector 175 may be inserted (or accommodated) into a portion of the second support portion 152 or the inclined portion 153 of the support member 150. For example, a portion (or an interior) of the connection connector 175 may pass through a portion of the inclined portion 153 of the support member 150 along the horizontal direction X and may be arranged (or accommodated) in the internal space 100a. For example, the support member 150 may also include a connector insertion hole (or a connector accommodation hole), which is arranged at the second support portion 152 or the inclined portion 153, so that a portion (or an interior) of the connection connector 175 is inserted (or accommodated) therein. For example, a waterproof member (or a waterproof adhesive or a waterproof tape) may be arranged or inserted between the connector insertion hole and the connection connector 175.

[0145] The connection connector 175 may be configured to be electrically connected to a first connector terminal 173 disposed (or mounted) on the PCB 171. For example, the connection connector 175 may be configured to be electrically connected to the first connector terminal 173 through a connection line 176 at the internal space 100a. The connection connector 175 may be configured to be electrically connected to a signal input cable connected to a host device (or a host drive circuit), and may be electrically connected to the first connector terminal 173 through the connection line 176. Therefore, the host device (or the host drive circuit) may supply sound data (or sound signals) to the first connector terminal 173 through the signal input cable, the connection connector 175, and the connection line 176.

[0146] The connection connector 175 according to an embodiment of the present disclosure may include a waterproof structure or a waterproof member to prevent water from penetrating into the internal space 100a. For example, the connection connector 175 may be a waterproof connector, but the embodiment of the present disclosure is not limited thereto. In addition, based on the connection connector 175 configured at the support member 150 and the connection between the vibration member 110 and the support member 150 through the coupling member 140, the acoustic device 100 according to an embodiment of the present disclosure may have a waterproof structure.

[0147] The acoustic device 100 or the support member 150 according to the embodiment of the present disclosure may include a plurality of coupling portions 155. For example, the second support portion 152 of the support member 150 may include a plurality of coupling portions 155.

[0148] A plurality of coupling portions 155 may be disposed at each corner portion of the support member 150. The plurality of coupling portions 155 may be configured to have a certain length at each corner portion of the second support portion 152 of the support member 150. Each of the plurality of coupling portions 155 may protrude relative to each corner portion of the second support portion 152 to have a certain length. For example, each of the plurality of coupling portions 155 may be a fixing portion, a protruding portion, a protruding member, a coupling member, or a coupling bracket, but embodiments of the present disclosure are not limited thereto.

[0149] Although the embodiment includes that the plurality of coupling parts 155 may be configured at each corner portion of the support member 150 , the present disclosure is not limited thereto. According to another embodiment, the plurality of coupling parts 155 may be provided at any portion of the second support part 152 of the support member 150 .

[0150] Each of the plurality of coupling parts 155 may include a through hole (or hole or first hole) 155h. The through hole 155h of each of the plurality of coupling parts 155 may be formed as a part of a fastening means (or thread) through which screws or bolts pass.

[0151] Each of the plurality of coupling parts 155 can be coupled to the installation object by a fastening device such as a screw or a bolt. For example, the fastening device can pass through the through hole 155h of each of the plurality of coupling parts 155 and can be fastened to the installation object, and thus each of the plurality of coupling parts 155 can be coupled to the installation object. Therefore, the acoustic device 100 or the supporting member 150 can be coupled to the installation object or assembled at the installation object, and sound can be generated or output based on the vibration of the vibration member 110 based on the vibration of the vibration device 130. For example, the installation object can be a structural material that supports the acoustic device 100 so that sound is output from the acoustic device 100. In addition, the installation object can be a structure of a vehicle device, a wall of a building, or a structure of a display device, etc., but the embodiments of the present disclosure are not limited thereto. For example, the structure of the vehicle device can be an external material, an internal material, a ceiling material, a vehicle body floor, or a vehicle body bottom frame, but the embodiments of the present disclosure are not limited thereto.

[0152] The acoustic device 100 according to an embodiment of the present disclosure may generate (or output) sound based on the vibration of the vibration member 110 (which in turn is based on the vibration of the vibration device 130). The acoustic device 100 according to an embodiment of the present disclosure may generate (or output) sound based on the vibration of the vibration member 110 having a size greater than that of the vibration device 130, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal range. The acoustic device 100 according to an embodiment of the present disclosure may output sound having a sound pressure level of 60 dB or more in a tone vocal range of 300 Hz or more.

[0153] The acoustic device 100 according to the embodiment of the present disclosure may include a vibration device 130 configured with a piezoelectric device, and therefore, the acoustic device 100 may be lightweight and may have a thin thickness, and may output a sound or a virtual engine sound having a wide directivity angle or a non-directivity angle based on the non-directional characteristics of the vibration device 130 configured with a piezoelectric device. However, the present disclosure is not limited thereto. Compared with the sound generated based on the vibration of an actuator including a magnet and a coil, the acoustic device 100 according to the embodiment of the present disclosure may have a sound having a wide directivity angle. For example, when the vibration device 130 configured with a piezoelectric device is configured to output a virtual engine sound, the vibration device 130 may output a uniform virtual engine sound in each of the forward direction, the backward direction, the left direction, and the right direction relative to the vibration device 130. The acoustic device 100 according to the embodiment of the present disclosure may output a virtual engine sound or sound having a sound pressure level of 60 dB or more in a tone band of 300 Hz or more.

[0154] Figure 4 The embodiment according to the present disclosure is shown Figure 1 An enlarged view of portion "A" is shown. Figure 5 According to the embodiments of the present disclosure Figure 4 A cross-sectional view taken along line II-II' is shown. Figure 4 and Figure 5 It is shown that according to the above reference Figures 1 to 3 The acoustic device of the embodiment of the present disclosure described further configures an embodiment of a pad member. In the following description, elements other than the pad member and related elements are referred to as the same reference numerals, and their repeated descriptions may be omitted.

[0155] Reference Figure 1 , Figure 4 and Figure 5 , the acoustic device 100 according to an embodiment of the present disclosure may further include a pad member 156 .

[0156] The pad member 156 may be configured at the support member 150 to prevent the vibration of the acoustic device 100 or the support member 150 from being transmitted to the installation object, or to prevent the vibration of the installation object from being transmitted to the acoustic device 100 or the support member 150. The pad member 156 may include material properties suitable for blocking vibration. For example, the pad member 156 may include a material with elasticity. For example, the pad member 156 may include a material with elasticity for vibration absorption (or impact absorption). In addition, the pad member 156 may include a ductile material with elasticity. The pad member 156 according to an embodiment of the present disclosure may be configured as a polyurethane material, a polyolefin material, a silicone material, a rubber material, or a porous material, but the embodiments of the present disclosure are not limited thereto. For example, the pad member 156 may be a buffer member, an elastic member, a damping member, a vibration absorbing member, a vibration preventing member, or a vibration blocking member, but the embodiments of the present disclosure are not limited thereto.

[0157] The pad member 156 may be configured at each of the plurality of coupling portions 155, which are configured at the acoustic device 100 or the support member 150. For example, the pad member 156 may be coupled to the first surface (or upper surface) 155a of each of the plurality of coupling portions 155. In addition, the pad member 156 may be coupled to the first surface 155a of each of the plurality of coupling portions 155 that faces the installation object. In another embodiment, the pad member 156 may be provided as one body with the first surface 155a of each of the plurality of coupling portions 155. For example, the pad member 156 may be configured as one body with the first surface 155a of each of the plurality of coupling portions 155.

[0158] The pad member 156 may include a hollow portion 156h overlapping the through-hole 155h at each of the plurality of coupling parts 155. For example, the pad member 156 may have a ring shape including the hollow portion 156h, but embodiments of the present disclosure are not limited thereto.

[0159] The pad member 156 can be arranged (or inserted) between each of the multiple coupling parts 155 and the installation object, and thus, can block or prevent the vibration transmission between the installation object and the acoustic device 100, and can prevent the occurrence of sound noise (or noise) caused by the vibration transmission between the installation object and the acoustic device 100.

[0160] Figure 6 According to the embodiments of the present disclosure Figure 1 Another enlarged view of portion "A" shown in FIG. Figure 7 According to the embodiments of the present disclosure Figure 6 A cross-sectional view taken along line III-III' shown in FIG. Figure 6 and Figure 7Shown by modifying the above reference Figure 5 The embodiment is implemented by the pad member according to the embodiment of the present disclosure. In the following description, other elements except the pad member and related elements are referred to by the same reference numerals, and repeated description thereof may be omitted.

[0161] Reference Figure 1 , Figure 6 and Figure 7 , a pad member 156 according to another embodiment of the present disclosure may be configured at each of a plurality of coupling portions 155 configured at the acoustic device 100 or the support member 150 .

[0162] The pad member 156 may be configured to pass through the through hole 155h of each of the plurality of coupling portions 155. The pad member 156 may be inserted (or accommodated) into the through hole 155h of each of the plurality of coupling portions 155. The pad member 156 may protrude a certain height from the first surface 155a (or upper surface) and the second surface 155b (or lower surface) of each of the plurality of coupling portions 155. For example, with respect to the vertical direction (Z1, Z2), the height of the pad member 156 may be greater than the height of the coupling portion 155. The pad member 156 may be integrally provided with each of the plurality of coupling portions 155. For example, the pad member 156 may be integrally configured with each of the plurality of coupling portions 155. In addition, the pad member 156 may correspond to the edge portion of the plurality of coupling portions 155.

[0163] The pad member 156 may include a hollow portion 156h overlapping the through hole 155h of each of the plurality of coupling parts 155. For example, the pad member 156 may have a cylindrical shape or a tube shape including the hollow portion 156h, but the embodiments of the present disclosure are not limited thereto. Figure 4 and Figure 5 The material of the pad member 156 is the same material as described, and thus a repeated description thereof may be omitted.

[0164] The upper surface of the pad member 156 protruding upward from the first surface 155a of each of the plurality of coupling portions 155 may be disposed (or inserted) between each of the plurality of coupling portions 155 and the installation object, and thus, the vibration transfer between the installation object and the acoustic device 100 may be blocked or prevented, and the occurrence of sound noise (or noise) caused by the vibration transfer between the installation object and the acoustic device 100 may be prevented. In addition, the top surface of the pad member 156 may protrude above the top surfaces of the plurality of coupling portions 155.

[0165] The central portion of the pad member 156 inserted into (or accommodated in) the through hole 155h of each of the multiple coupling portions 155 can block or prevent the transmission of vibration to the supporting member 150 through the fastening device fastened to the installation object, and can prevent the occurrence of sound noise (or noise) caused by the vibration transmission between the installation object and the acoustic device 100 by the fastening device.

[0166] Figure 8 According to the embodiments of the present disclosure Figure 1 Another cross-sectional view taken along line II' shown in FIG. Figure 8 According to the above reference Figures 1 to 7 The acoustic device of the embodiment of the present disclosure is described as further configuring an embodiment of a mass member. In the following description, elements other than the mass member and related elements are denoted by the same reference numerals, and repeated descriptions thereof are omitted.

[0167] Reference Figures 1 to 8 , the acoustic device 100 according to another embodiment of the present disclosure may further include one or more mass members 180 .

[0168] According to another embodiment of the present disclosure, one or more mass members 180 may be disposed at the vibration member 110 to overlap with the vibration device 130. One or more mass members 180 may be coupled or attached to the first surface 100a of the vibration member 110. One or more mass members 180 may be coupled or attached to the first surface 100a of the vibration member 110 to overlap with the central portion of the vibration device 130. For example, the acoustic device 100 according to an embodiment of the present disclosure may include one mass member 180, which is coupled or attached to the central portion of the first surface 100a of the vibration member 110 to overlap with the central portion of the vibration device 130. However, according to another embodiment, the mass member 180 may be disposed at other locations on the first surface 100a of the vibration member 110. For example, the mass member 180 may be disposed at an edge portion of the first surface 100a of the vibration member 110.

[0169] According to another embodiment of the present disclosure, one or more mass members 180 may be disposed at the vibration device 130 in the internal space 100a. One or more mass members 180 may be attached to the central portion of the vibration device 130. For example, one or more mass members 180 may be attached to the central portion of the vibration device 130 to be disposed between the vibration device 130 and the support member 150.

[0170] According to one or more mass members 180 of an embodiment of the present disclosure, the mass members 180 may have a polygonal column shape or a cylindrical shape, but the present disclosure is not limited thereto. According to one or more mass members 180 of an embodiment of the present disclosure, the mass members 180 may be configured as a counterweight material having a large weight, but the embodiments of the present disclosure are not limited thereto. For example, the mass members 180 may include one or more materials of stainless steel, aluminum (Al), Al alloy, titanium (Ti), or titanium alloy, but the embodiments of the present disclosure are not limited thereto.

[0171] One or more mass members 180 can increase the weight (or mass) of the vibration member 110 in the area overlapping with the vibration device 130, and therefore, the lowest resonance frequency (or lowest natural frequency) of the vibration member 110 can be reduced. Therefore, due to the lowest resonance frequency (or lowest natural frequency) based on the mass increase caused by one or more mass members 130, the vibration device 130 can vibrate at a relatively low frequency. Therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the vibration member 110 based on the vibration of the vibration device 130 can be enhanced. For example, one or more mass members 180 can be a local mass, a point mass, a resonance pad, a weight member or a weight hammer, but the embodiments of the present disclosure are not limited thereto. For example, the low-pitched vocal cords can be about 300 Hz or less or about 500 Hz or less, but the embodiments of the present disclosure are not limited thereto.

[0172] The acoustic device 100 according to the embodiment of the present disclosure may have the same Figures 1 to 7 The effect of the acoustic device described is substantially the same as the effect of the acoustic device described. The acoustic device 100 according to an embodiment of the present disclosure may also include one or more mass members 180, and therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal range may be increased or improved, and the low-pitched vocal range of the sound generated based on the vibration of the vibration member 110 may be extended.

[0173] Fig. 9 is a perspective view showing an acoustic device 100 according to another embodiment of the present disclosure. Fig.10 is an exploded perspective view showing an acoustic device 100 according to another embodiment of the present disclosure. Fig.11 Another embodiment of the present disclosure is shown. Fig. 9 and Fig.10 A plan view of the vent hole and water blocking member shown in FIG. Figures 9 to 11 As shown in the above reference Figures 1 to 8 The acoustic device described herein is further provided with one or more vents. In the following description, elements other than the vents and related elements are denoted by the same reference numerals, and repeated description thereof may be omitted.

[0174] Reference Figures 9 to 11 , the acoustic device 100 according to another embodiment of the present disclosure may further include one or more vent holes 151h.

[0175] One or more vents 151h may be configured to adjust the air flow in the inner space 100a of the supporting member 150 or the acoustic device 100. One or more vents 151h may be configured to reduce the air pressure of the inner space 100a of the supporting member 150 or the acoustic device 100. For example, one or more vents 151h may be configured to reduce the air pressure of the inner space 100a disposed between the vibration member 110 and the supporting member 150. Therefore, the frequency band (or reproduction frequency band) of the low-pitched vocal band can be expanded, and therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band can be improved. In addition, by reducing the air pressure of the inner space 100a or enhancing the air flow of the inner space 100a by means of one or more vents 151h, the vibration member 110 can vibrate more stably, and therefore, the sound characteristics and / or sound pressure level characteristics can be further improved.

[0176] One or more vents 151h may be configured at the support member 150 to connect (or couple) the internal space 100a and the external space to each other. One or more vents 151h may be configured at a specific area or partial area of ​​the first support portion 151 of the support member 150. According to an embodiment of the present disclosure, one or more vents 151h may be configured at a specific area or partial area of ​​the first support portion 151 of the support member 150 that overlaps with the vibration device 130. According to another embodiment of the present disclosure, one or more vents 151h may be configured in a partial area or peripheral area of ​​the first support portion 151 that does not overlap with the vibration device 130.

[0177] The acoustic device 100 according to another embodiment of the present disclosure may include a plurality of vent holes 151h, which are arranged at a certain interval (or a certain distance) in the first support portion 151 of the support member 150. For example, the plurality of vent holes 151h may be configured to have a certain interval (or a certain distance) in the first support portion 151 overlapping the vibration device 130, and in this case, the size of the hole area configured in the plurality of vent holes 151h may be less than or equal to the size of the vibration device 130, but the embodiment of the present disclosure is not limited thereto. For example, the size of the hole area configured at the plurality of vent holes 151h may be greater than the size of the vibration device 130. In addition, the plurality of vent holes 151h may be configured to have a certain interval (or a certain distance) in a partial area or a peripheral area of ​​the first support portion 151 that does not overlap with the vibration device 130. For example, the plurality of vent holes 151h may be configured to have a certain interval in the entire area of ​​the first support portion 151. Furthermore, some of the plurality of vent holes 151 h may overlap with the vibration device 130 , and other of the plurality of vent holes 151 h may not overlap with the vibration device 130 .

[0178] In addition, each of the vent holes 151h may have the same diameter. However, the present disclosure is not limited thereto. In another embodiment, the vent holes 151h may have different diameters from each other.

[0179] One or more vent holes 151h or a plurality of vent holes 151h may be formed to pass through or vertically pass through the first support portion 151 in the vertical direction (Z1, Z2) or thickness direction of the first support portion 151. Therefore, the inner space 100a of the acoustic device 100 or the support member 150 or the inner space 100a provided between the vibration member 110 and the first support portion 151 may be connected to the outside or connected to the outside through the one or more vent holes 151h or a plurality of vent holes 151h, and therefore, the air pressure of the inner space 100a of the support member 150 may be reduced.

[0180] One or more vent holes 151h or a plurality of vent holes 151h may be configured in a polygonal shape, such as a circular shape, an elliptical shape, or a quadrilateral shape, but embodiments of the present disclosure are not limited thereto. For example, the vent hole 151h may be a second hole, a vent hole, an air flow hole, a duct hole, a ventilation hole, an air duct hole, a connection hole, or a communication hole, but embodiments of the present disclosure are not limited thereto.

[0181] The acoustic device 100 according to the embodiment of the present disclosure may have the same Figures 1 to 8The effect of the acoustic device described is basically the same effect. In the acoustic device 100 according to another embodiment of the present disclosure, the reduction of air pressure or air flow in the internal space 100a can be adjusted through one or more vents 151h, and thus, the frequency band (or reproduction frequency band) of the low-pitched vocal band can be expanded, thereby improving the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band.

[0182] The acoustic apparatus 100 according to another embodiment of the present disclosure may further include a water blocking member 190 .

[0183] The water blocking member 190 may be configured to prevent damage to the vibration device 130 and the driving circuit portion 170 caused by water. For example, the water blocking member 190 may be configured to prevent water from penetrating into the acoustic device 100 or the supporting member 150 through one or more vent holes 151h or a plurality of vent holes 151h. For example, the water blocking member 190 may be configured to prevent water from penetrating into the inner space 100a of the acoustic device 100 or the supporting member 150 through one or more vent holes 151h or a plurality of vent holes 151h.

[0184] The water blocking member 190 may be disposed (or attached) at the first support portion 151 of the support member 150 to cover one or more vent holes 151h or multiple vent holes 151h. For example, the water blocking member 190 may be disposed (or attached) at the inner surface 151a of the first support portion 151 facing the vibration device 130 to cover one or more vent holes 151h or multiple vent holes 151h, but the embodiments of the present disclosure are not limited thereto. For example, the water blocking member 190 may be disposed (or attached) at the outer surface of the first support portion 151 to cover one or more vent holes 151h or multiple vent holes 151h.

[0185] The water blocking member 190 according to an embodiment of the present disclosure may be configured to allow air to pass through the water blocking member 190 or to prevent water from passing through the water blocking member 190. For example, the water blocking member 190 may be an air-permeable nanomembrane member or an air-permeable waterproof membrane member, but embodiments of the present disclosure are not limited thereto.

[0186] The acoustic device 100 according to another embodiment of the present disclosure may have the same Figures 1 to 8 The effect of the acoustic device described is substantially the same effect. The acoustic device 100 according to another embodiment of the present disclosure may further include a water blocking member 190 covering the one or more vent holes 151h, and thus, damage of the vibration device 130 and the driving circuit part 170 caused by water may be prevented.

[0187] Fig.12is a perspective view of an acoustic device according to another embodiment of the present disclosure. Fig.13 According to the embodiments of the present disclosure Fig.12 A cross-sectional view taken along line IV-IV' shown in FIG.

[0188] Fig.12 and Fig.13 Shown by modifying the above reference Figures 9 to 11 In the following description, elements other than the one or more vents and related elements are denoted by the same reference numerals, and repeated descriptions thereof may be omitted.

[0189] Reference Fig.12 and Fig.13 , the acoustic device 100 according to another embodiment of the present disclosure may further include one or more vent holes 151h or a plurality of vent holes 151h.

[0190] One or more vent holes 151h or a plurality of vent holes 151h may be arranged at a specific area or a partial area of ​​the inclined portion 153 of the support member 150. In addition to one or more vent holes 151h or a plurality of vent holes 151h being arranged at the inclined portion 153 of the support member 150, the plurality of vent holes 151h may be arranged as described above with reference to Figures 9 to 11 The one or more vent holes 151h or the plurality of vent holes 151h described are substantially the same, and therefore, repeated description thereof may be omitted, and the above reference to the vent holes 151h may be omitted. Figures 9 to 11 The one or more vent holes 151h or the description of the plurality of vent holes 151h may be included in Fig.12 and Fig.13 in the description.

[0191] The support member 150 may include a first inclined portion 153a to a fourth inclined portion 153d. For example, the first inclined portion 153a and the third inclined portion 153b may each be a short-side inclined portion of the support member 150, and the second inclined portion 153c and the fourth inclined portion 153d may each be a long-side inclined portion of the support member 150. For example, one or more vents 151h may be configured at one or more of the first inclined portion 153a to the fourth inclined portion 153d. For example, when each of the one or more vents 151h and the connection connector 175 of the drive circuit portion 170 is configured at the first inclined portion 153a of the first inclined portion 153a to the fourth inclined portion 153d of the support member 150, the one or more vents 151h may be configured at the periphery of the connection connector 175 of the first inclined portion 153a. For example, to enhance air flow or reduce air pressure in the inner space 100a of the vibration member 110, one or more vent holes 151h may be configured at each of the first to fourth inclined portions 153a to 153d, but embodiments of the present disclosure are not limited thereto.

[0192] In another embodiment, the support member 150 may have one or more vent holes 151 h provided on both: the first to fourth inclined portions 153 a to 153 d of the support member 150 ; and the first support portion 151 of the support member 150 .

[0193] The acoustic device 100 according to the embodiment of the present disclosure may have the same Figures 1 to 8 The effect of the acoustic device described is basically the same effect. In the acoustic device 100 according to another embodiment of the present disclosure, the reduction of air pressure or air flow in the internal space 100a can be adjusted by one or more vents 151h configured at the inclined portion 153 of the supporting member 150, and thus, the frequency band (or reproduction frequency band) of the low-pitched vocal band can be expanded, thereby improving the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band.

[0194] The acoustic apparatus 100 according to another embodiment of the present disclosure may further include a water blocking member 190 .

[0195] The water blocking member 190 may be configured at the inclined portion 153 of the support member 150 to cover one or more vent holes 151h or multiple vent holes 151h. For example, the water blocking member 190 may be configured (or attached) on the inner side of the inclined portion 153 of the support member 150 to cover one or more vent holes 151h or multiple vent holes 151h, but the embodiments of the present disclosure are not limited thereto. For example, in another embodiment, the water blocking member 190 may be configured (or attached) at the outer surface of the inclined portion 153 of the support member 150 to cover one or more vent holes 151h or multiple vent holes 151h.

[0196] The water blocking member 190 according to an embodiment of the present disclosure may be configured to allow air to pass through the water blocking member 190 or to prevent water from passing through the water blocking member 190. For example, the water blocking member 190 may be an air-permeable nanomembrane member or an air-permeable waterproof membrane member, but embodiments of the present disclosure are not limited thereto.

[0197] The acoustic device 100 according to another embodiment of the present disclosure may have the same Figures 1 to 8 The effect of the acoustic device described is substantially the same effect. The acoustic device 100 according to another embodiment of the present disclosure may further include a water blocking member 190 covering the one or more vent holes 151h, and thus may prevent damage of the vibration device 130 and the driving circuit part 170 caused by water.

[0198] Fig.14 is an exploded perspective view showing an acoustic device according to another embodiment of the present disclosure. Fig.15 According to the embodiments of the present disclosure Fig.14 A cross-sectional view taken along line V-V' shown in FIG. Fig.16 is a diagram showing an embodiment according to the present disclosure Fig.14 and Fig.15 A plan view of a printed circuit board and one or more connecting holes shown in FIG. Figures 14 to 16 One or more connection holes are further configured above with reference to Figures 1 to 13 In the following description, elements other than a plurality of connection holes and related elements are denoted by the same reference numerals, and repeated descriptions thereof may be omitted.

[0199] Reference Figures 14 to 16 , the acoustic apparatus 100 according to another embodiment of the present disclosure may further include one or more connection holes 171 h or a plurality of connection holes 171 h configured at the PCB 171 of the driving circuit part 170 .

[0200] One or more connection holes 171h (or a plurality of connection holes 171h) may be configured at the PCB 171 to adjust the air flow in the internal space 100a of the acoustic device 100 or the support member 150. One or more connection holes 171h may be configured at the PCB 171 to adjust the air flow between the internal space 100a and the protruding space 100b in the acoustic device 100 or the support member 150. For example, one or more connection holes 171h may be configured to pass through the PCB 171 in the vertical direction (Z1, Z2) or thickness direction of the PCB 171. One or more connection holes 171h may be configured at the central portion of the PCB 171. However, the present disclosure is not limited thereto. Therefore, the internal space 100a and the protruding space 100b may be connected (or communicated) to each other through one or more connection holes 171h. Therefore, when the vibration member 110 vibrates based on the driving of the vibration device 130, the air flow in the inner space 100a and the protruding space 100b can be performed more smoothly through one or more connection holes 171h configured in the PCB 171. Therefore, the vibration of the PCB 171 caused by the sound pressure level (or sound wave) generated based on the vibration of the vibration member 110 can be prevented or minimized, and therefore, the occurrence of noise caused by the PCB 171 can be prevented or minimized.

[0201] Each of the one or more connection holes 171h according to an embodiment of the present disclosure may be configured as a circular shape, an elliptical shape, a polygonal shape, a linear shape, or a slit shape, but the embodiments of the present disclosure are not limited thereto. For example, the connection hole 171h may be a third hole, a communication hole, a slit hole, or a slot hole, but the embodiments of the present disclosure are not limited thereto.

[0202] The acoustic device 100 according to another embodiment of the present disclosure may have the same Figures 1 to 13 The effect of the acoustic device described is basically the same as the effect. In the acoustic device 100 according to another embodiment of the present disclosure, the air flow in the internal space 100a and the protruding space 100b can be performed more smoothly through one or more connection holes 171h configured at the PCB 171, and the vibration of the PCB 171 caused by the sound pressure level (or sound wave) generated based on the vibration of the vibration member 110 can be prevented or minimized, thereby preventing or minimizing the occurrence of noise caused by the PCB 171.

[0203] Fig.17 is a perspective view of an acoustic device according to another embodiment of the present disclosure. Fig.18 According to the embodiments of the present disclosure Fig.17 A cross-sectional view taken along line VI-VI' shown in FIG.

[0204] Fig.19 is an exploded perspective view showing an acoustic device according to another embodiment of the present disclosure. Figures 17 to 19 Shown by modifying the above reference Figures 1 to 8 In the following description, the modified configuration of each of the supporting member, the vibration device and the PCB and other elements except the elements related thereto are referred to by the same reference numerals, and repeated description thereof may be omitted. Figures 4 to 7 It is shown in Fig.17 An enlarged view of area "A" is shown in FIG.

[0205] Reference Figures 17 to 19 In the acoustic device 100 according to another embodiment of the present disclosure, the support member 150 may include a first support portion 151 and a second support portion 152 connected to the outer peripheral portion of the first support portion 151. Figures 1 to 8 Compared with the support member 150 described above, the support member 150 may have a structure in which the inclined portion 153 and the edge flat portion 154 are omitted, and therefore, the repeated description thereof may be omitted. For example, the support member 150 may include a box shape in which one side (or the upper side or the upper portion) is opened by the first support portion 151 and the second support portion 152. In addition, the thickness of the second support portion 152 may be greater than the thickness of the first support portion 151.

[0206] The support member 150 or the first support portion 151 may include a first area and a second area parallel to each other. For example, the support member 150 or the first support portion 151 may include a first area overlapping with the vibration device 130 and a second area overlapping with the PCB 171 (or the drive circuit portion 170). For example, the first area and the second area may have different sizes. For example, the size of the first area may be larger than the size of the second area. For example, the first area may correspond to the size of the vibration device 130, and the second area may correspond to the size of the PCB 171.

[0207] The vibration device 130 may be disposed (or configured) between the vibration member 110 and the first support portion 151 of the support member 150. For example, the vibration device 130 may be disposed (or configured) at the first region of the first support portion 151. The vibration device 130 may be disposed at the vibration member 110 to overlap with the first region of the first support portion 151. The vibration device 130 may be disposed at the vibration member 110 to directly face the first support portion 151. For example, the vibration device 130 may be disposed at the vibration member 110 to directly face the inner surface 151a of the first support portion 151. For example, the vibration device 130 may be disposed at the first surface 110a of the vibration member 110 to directly face the inner surface 151a of the first support portion 151.

[0208] The driving circuit portion 170 or the PCB 171 may be configured (or disposed) between the first supporting portion 151 of the supporting member 150 and the vibration member 110. The driving circuit portion 170 or the PCB 171 may be configured (or disposed) between the first supporting portion 151 and the vibration member 110 so as not to overlap with the vibration device 130. For example, the PCB 171 may be configured (or disposed) at the second region of the first supporting portion 151. The PCB 171 may be disposed (or fixed) at the first supporting portion 151 to overlap with the second region of the first supporting portion 151. The PCB 171 may be disposed (or fixed) at the first supporting portion 151 to directly face the vibration member 110. For example, the PCB 171 may be disposed (or fixed) at the first supporting portion 151 to directly face the first surface 110a of the vibration member 110. In addition, there may be a gap between the edge of the PCB 171 and the edge of the vibration device 130, however, the present disclosure is not limited thereto.

[0209] The size of the PCB 171 may be smaller than that of the vibration device 130. The PCB 171 may be disposed (or fixed) at the first support portion 151 by a fixing member 160. For example, each corner of the PCB 171 may be disposed (or fixed) at the first support portion 151 by a fixing member 160. For example, the fixing member 160 may be disposed (or fixed) between the first surface 171a of the PCB 171 and the inner surface 151a of the first support portion 151, and may be configured to support or fix the first surface 171a of the PCB 171. The fixing member 160 may be the same as that described above with reference to FIG. Figures 1 to 3 The described fixing members 160 are substantially the same, and thus, a repeated description thereof may be omitted.

[0210] The PCB 171 may be disposed in parallel with the vibration device 130 in the inner space 100a of the supporting member 150 or the acoustic device 100 so as not to overlap with the vibration device 130. For example, in the inner space 100a, the PCB 171 (or the driving circuit portion 170) and the vibration device 130 may be disposed in parallel so as not to overlap each other vertically (or up and down). For example, in the inner space 100a, the PCB 171 (or the driving circuit portion 170) and the vibration device 130 may be disposed in parallel so as not to overlap each other.

[0211] The acoustic device 100 according to another embodiment of the present disclosure may have the same Figures 1 to 8 The effect of the acoustic device described is basically the same as the effect. In the acoustic device 100 according to another embodiment of the present disclosure, the driving circuit part 170 (or PCB 171) and the vibration device 130 may not overlap each other in the vertical direction (Z1, Z2) in the supporting member 150 or the internal space 100a of the acoustic device 100, and may be arranged in parallel in the horizontal direction, and therefore, the thickness of the acoustic device 100 may be reduced.

[0212] According to another embodiment of the present disclosure, the above reference Figures 9 to 13 The one or more vent holes and water blocking members described above may be applied substantially the same as those described above with reference to Figures 17 to 19 The acoustic device 100 described above is not described herein, and therefore, a repeated description thereof may be omitted. Fig.14 and Fig.15 The one or more connection holes 171h described above may be substantially the same as those described above with reference to Figures 17 to 19 The acoustic device 100 is described above, and therefore, a repeated description thereof may be omitted.

[0213] Fig. 20 According to another embodiment of the present disclosure, Fig.17 Another cross-sectional view taken along line VI-VI' shown in FIG. Fig. 20 Shown by modifying the above reference Figures 17 to 19 In the following description, the connection structure of the PCB and other elements except the elements related thereto are denoted by the same reference numerals, and repeated description thereof may be omitted.

[0214] Reference Fig. 20In the acoustic device 100 according to another embodiment of the present disclosure, the driving circuit portion 170 or the PCB 171 may be configured (or disposed) at the vibration member 110 so as not to overlap with the vibration device 130. For example, the PCB 171 may be configured (or disposed) at the vibration member 110 so as to overlap with the second area of ​​the first support portion 151. The PCB 171 may be disposed (or fixed) at the first surface 110a of the vibration member 110 so as to overlap with the second area of ​​the first support portion 151. For example, the PCB 171 may be disposed (or fixed) at the first surface 110a of the vibration member 110 so as to directly face the first surface 110a of the vibration member 110.

[0215] The size of the PCB 171 may be smaller than that of the vibration device 130. The PCB 171 may be disposed (or fixed) at the vibration member 110 by means of a fixing member 160. For example, each corner of the PCB 171 may be disposed (or fixed) at the vibration member 110 by means of a fixing member 160. For example, the fixing member 160 may be disposed (or fixed) between the second surface 171b of the PCB 171 and the first surface 110a of the vibration member 110, and may be configured to support or fix the second surface 171b of the PCB 171. In addition to the fixing member 160 being connected to (or disposed on) the first surface 110a of the vibration member 110, the fixing member 160 may be the same as that described above with reference to FIG. Figures 1 to 3 The described fixing members 160 are substantially the same, and thus, a repeated description thereof may be omitted.

[0216] The PCB 171 may be disposed in parallel with the vibration device 130 in the inner space 100 a of the supporting member 150 or the acoustic device 100 without overlapping with the vibration device 130 .

[0217] The PCB 171 can increase the weight (or mass) of the vibration member 110, and thus, can reduce the lowest resonance frequency (or lowest natural frequency) of the vibration member 110. Therefore, the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the vibration member 110 based on the vibration of the vibration device 130 can be further enhanced.

[0218] The acoustic device 100 according to another embodiment of the present disclosure may have the same Figures 1 to 8 The effect of the acoustic device described is substantially the same effect. In the acoustic device 100 according to another embodiment of the present disclosure, the PCB 171 and the vibration device 130 may not overlap each other and may be arranged in parallel in the support member 150 or the internal space 100a of the acoustic device 100, and therefore, the thickness of the acoustic device 100 may be reduced.

[0219] According to another embodiment of the present disclosure, the above reference Figures 9 to 13 The one or more vent holes and water blocking members described above may be applied substantially the same as those described above with reference to Fig. 20 The acoustic device 100 described above is not described herein, and therefore, a repeated description thereof may be omitted. Fig.14 and Fig.15 The one or more connection holes 171h described above may be substantially the same as those described above with reference to Fig. 20 The acoustic device 100 is described above, and therefore, a repeated description thereof may be omitted.

[0220] Fig.21 According to another embodiment of the present disclosure, Figure 1 Another cross-sectional view taken along line II' shown in FIG. Fig. 22 is an exploded perspective view showing an acoustic device according to another embodiment of the present disclosure. Fig.21 and Fig. 22 The second vibration device is further configured as shown in the above reference Figures 1 to 8 In the following description, elements other than the second vibration device and related elements are denoted by the same reference numerals, and repeated descriptions thereof may be omitted.

[0221] Reference Fig.21 and Fig. 22 , the acoustic device according to another embodiment of the present disclosure may further include a second vibration device 230 .

[0222] The second vibration device 230 may be configured to vibrate the vibration member 110. The second vibration device 230 may be disposed or configured at the second surface 110b of the vibration member 110. The second vibration device 230 may be configured to vibrate (or displace or drive) based on a drive signal (or electrical signal or voice signal) applied thereto so as to vibrate (or displace) the vibration member 110. For example, the second vibration device 230 may be a second active vibration member, a second vibration generator, a second vibration structure, a second vibrator, a second vibration generating device, a second sound generator, a second sound device, a second sound generating structure, or a second sound generating device, but the embodiments of the present disclosure are not limited thereto.

[0223] The second vibration device 230 may include a piezoelectric material or an electroactive material having piezoelectric properties. The second vibration device 230 may vibrate (or shift) autonomously by the vibration (or displacement) of the piezoelectric material based on the driving signal applied to the piezoelectric material, or may vibrate (or shift) the vibration member 110. For example, the second vibration device 230 may alternately repeat contraction and / or expansion to vibrate (or shift or drive) based on the piezoelectric effect (or piezoelectric properties). For example, when alternately repeating contraction and / or expansion by the reverse piezoelectric effect, the second vibration device 230 may vibrate (or shift or drive) in the vertical direction (or thickness direction) Z1 and Z2. For example, the second vibration device 230 may include a piezoelectric device.

[0224] The second vibration device 230 may be disposed or configured at the second surface 110b of the vibration member 110 to overlap with the vibration device 130. For example, the second vibration device 230 may be disposed or configured at the second surface 110b of the vibration member 110 to overlap with the vibration device 130, wherein the vibration member 110 is between the second vibration device 230 and the vibration device 130. For example, the vibration device 130 may be a first vibration device.

[0225] The second vibration device 230 may be configured to have the same size as the vibration device 130. For example, the second vibration device 230 and the vibration device 130 may have substantially the same size within an error range of a manufacturing process. The second vibration device 230 may be configured to vibrate (or shift) in the same direction as the vibration device 130, and thus, the second vibration device 230 and the vibration device 130 may maximize the amplitude displacement of the vibration member 110. For example, an acoustic device according to another embodiment of the present disclosure may include a bimorph type structure consisting of the vibration device 130 and the second vibration device 230.

[0226] However, in another embodiment, the second vibration device 230 may have a different size than the vibration device 130. For example, the size of the second vibration device 230 may be larger or smaller than the size of the vibration device 130.

[0227] The second vibration device 230 may be electrically connected to the driving circuit part 170 through the second signal supply member 237 .

[0228] The second vibration device 230 may be connected or coupled to the vibration member 110 through the second connection member 220. For example, the second vibration device 230 may be connected to or supported by the second surface 110b of the vibration member 110 through the second connection member 220, but the embodiments of the present disclosure are not limited thereto. For example, the second connection member 220 may be a second adhesive member, but the embodiments of the present disclosure are not limited thereto. For example, the second connection member 220 may be substantially the same as the connection member 120, and therefore, a repeated description thereof may be omitted. For example, the connection member 120 may be the first connection member 120.

[0229] The acoustic device 100 according to another embodiment of the present disclosure may further include a second vibration device 230 configured to vibrate (or displace) in the same direction as the vibration device 130, wherein the vibration member 110 is between the second vibration device 230 and the vibration device 130, and therefore, the displacement amount or amplitude displacement of the vibration member 110 may be maximized or increased, thereby further enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords.

[0230] According to another embodiment of the present disclosure, the second vibration device 230 can be substantially the same as the above-mentioned Figures 8 to 20 The acoustic device 100 described above is described, and therefore, its repeated description may be omitted. Fig.21 and Fig. 22 The second vibration device 230 described above can be disposed (or coupled) at the second surface 110b of the vibration member 110 through the second connecting member 220 to be connected with the second vibration device 230 described above. Figures 8 to 20 The vibration devices 130 of the acoustic device 100 are depicted as overlapping.

[0231] Fig.23 is a perspective view showing a vibration device according to an embodiment of the present disclosure. Fig.24 According to the embodiments of the present disclosure Fig.23 A cross-sectional view taken along line VII-VII' shown in FIG. Fig.25 According to the embodiments of the present disclosure Fig.23 A cross-sectional view taken along line VIII-VIII' shown in FIG. Figure 23 to Figure 25 The above reference Figures 1 to 22 In the following description, the vibration device 130 and the second vibration device 230 may be referred to as vibration devices 130 and 230 .

[0232] Reference Figure 23 to Figure 25, the vibration devices 130 and 230 according to the embodiments of the present disclosure may include a piezoelectric material having piezoelectric characteristics. The vibration devices 130 and 230 may be configured as a ceramic-based piezoelectric material for achieving relatively strong vibration, or may be configured as a piezoelectric ceramic having a perovskite-based crystal structure, but the present disclosure is not limited thereto.

[0233] Reference Figure 23 to Figure 25 , the vibration devices 130 and 230 according to the embodiment of the present disclosure may include a vibration part 131 .

[0234] The vibration part 131 may be configured to vibrate by a piezoelectric effect based on a driving signal. The vibration part 131 may include at least one or more of a piezoelectric inorganic material and a piezoelectric organic material. For example, the vibration part 131 may be a vibration device, a piezoelectric device, a piezoelectric device part, a piezoelectric device layer, a piezoelectric structure, a piezoelectric vibration part, a piezoelectric vibration layer, etc., but the embodiments of the present disclosure are not limited thereto.

[0235] The vibration part 131 according to an embodiment of the present disclosure may include a vibration layer 131a, a first electrode layer 131b, and a second electrode layer 131c. In addition, the vibration part 131 may be surrounded by a non-vibration part. However, in another embodiment, the vibration part 131 is not surrounded by the non-vibration part, or may be only partially surrounded by the non-vibration part.

[0236] The vibration layer 131a may include a piezoelectric material or an electroactive material including a piezoelectric effect. For example, a piezoelectric material may have a property in which, when pressure or distortion is applied to a crystal structure by an external force, a potential difference occurs due to dielectric polarization caused by a change in the relative positions of positive (+) ions and negative (-) ions, and vibration is generated by an electric field based on a reverse voltage applied thereto. For example, the vibration layer 131a may be a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric composite layer, a piezoelectric composite, a piezoelectric ceramic composite, etc., but the embodiments of the present disclosure are not limited thereto.

[0237] The vibration layer 131a may be configured as a ceramic-based material for achieving relatively strong vibration, or may be configured as a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure may have a piezoelectric effect and / or a reverse piezoelectric effect, and may be an oriented plate-shaped structure, however, the embodiments of the present disclosure are not limited thereto.

[0238] The piezoelectric ceramic may be configured as a single crystal ceramic having a single crystal structure, or may be configured as a ceramic material or a polycrystalline ceramic having a polycrystalline structure. The piezoelectric material containing single crystal ceramics 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 containing polycrystalline ceramics may include a lead zirconate titanate (PZT)-based material containing lead (Pb), zirconium (Zr) and titanium (Ti), or may include a lead zirconate nickel niobate (PZNN)-based material containing lead (Pb), zirconium (Zr), nickel (Ni) and niobium (Nb), but the embodiments of the present disclosure are not limited thereto. For example, the vibration layer 131a may include at least one or more of calcium titanate (CaTiO3), barium titanate (BaTiO3) and strontium titanate (SrTiO3) that do not contain lead (Pb), but the embodiments of the present disclosure are not limited thereto.

[0239] The first electrode layer 131b may be disposed at a first surface (or upper surface or front surface) 131s1 of the vibration layer 131a. The first electrode layer 131b may have the same size as that of the vibration layer 131a, or may have a size smaller than that of the vibration layer 131a.

[0240] The second electrode layer 131c may be disposed at a second surface (or lower surface or rear surface) 131s2 opposite to or different from the first surface 131s1 of the vibration layer 131a. The second electrode layer 131c may have the same size as that of the vibration layer 131a, or may have a size smaller than that of the vibration layer 131a. For example, the second electrode layer 131c may have the same shape as that of the vibration layer 131a, but embodiments of the present disclosure are not limited thereto.

[0241] According to an embodiment of the present disclosure, in order to prevent an electrical short circuit between the first electrode layer 131b and the second electrode layer 131c, each of the first electrode layer 131b and the second electrode layer 131c may be formed at other portions of the vibration layer 131a except for the peripheral portion. For example, the first electrode layer 131b may be formed at the entire first surface 131s1 of the vibration layer 131a except for the peripheral portion. For example, the second electrode layer 131c may be formed at the entire second surface 131s2 of the vibration layer 131a except for the peripheral portion. For example, the distance between the side surface (or side wall) of each of the first electrode layer 131b and the second electrode layer 131c and the side surface (or side wall) of the vibration layer 131a may be at least 0.5 mm or more. For example, the distance between the lateral surface of each of the first electrode layer 131b and the second electrode layer 131c and the lateral surface of the vibration layer 131a may be at least 1 mm or more, but the embodiments of the present disclosure are not limited thereto.

[0242] According to an embodiment of the present disclosure, one or more of the first electrode layer 131b and the second electrode layer 131c 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, etc., or may be made of their alloys, but the embodiments of the present disclosure are not limited thereto. For example, in order to enhance the electrical characteristics and / or vibration characteristics of the vibration layer 131a, each of the first electrode layer 131b and the second electrode layer 131c may contain silver (Ag) having a low resistivity. For example, the carbon may be carbon black, ketjen black, carbon nanotubes, and a carbon material including graphite, but the embodiments of the present disclosure are not limited thereto.

[0243] The vibration layer 131a may be polarized (or polarized) by applying a specific voltage to the first electrode layer 131b and the second electrode layer 131c in a specific temperature atmosphere or a temperature atmosphere that can be changed from a high temperature to a 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 layer 131a may be formed or aligned (or arranged) from the first electrode layer 131b to the second electrode layer 131c, but is not limited thereto, and the polarization direction (or polarization direction) formed in the vibration layer 131a may be formed or aligned (or arranged) from the second electrode layer 131c to the first electrode layer 131b.

[0244] The vibration layer 131a can contract and / or expand alternately and repeatedly to vibrate based on the reverse piezoelectric effect according to the driving signal applied from the outside to the first electrode layer 131b and the second electrode layer 131c. For example, the vibration layer 131a can vibrate in the vertical direction (or thickness direction) and the plane direction by the driving signal applied to the first electrode layer 131b and the second electrode layer 131c. The vibration layer 131a can be displaced (or vibrated or driven) by contraction and / or expansion in the plane direction, thereby improving the sound characteristics and / or sound pressure level characteristics of the vibration part 131.

[0245] The vibration devices 130 and 230 according to the embodiment of the present disclosure may further include a cover member 133 .

[0246] The cover member 133 may be configured to cover at least one or more of the first surface and the second surface of the vibration part 131. The cover member 133 may be configured to protect at least one or more of the first surface and the second surface of the vibration part 131. For example, the first surface of the vibration part 131 may be a front surface, a top surface, or an upper surface. For example, the second surface of the vibration part 131 may be a rear surface, a back surface, or a lower surface opposite to the first surface. In an embodiment of the present disclosure, the cover member 133 may surround the vibration part 131.

[0247] The vibration devices 130 and 230 according to the embodiment of the present disclosure may further include a first cover member 133 a .

[0248] The first cover member 133a may be disposed at the first surface of the vibration part 131. For example, the first cover member 133a may be configured to cover the first electrode layer 131b of the vibration part 131. For example, the first cover member 133a may be configured to have a larger size than the vibration part 131. The first cover member 133a may be configured to protect the first surface of the vibration part 131 and the first electrode layer 131b.

[0249] The first cover member 133a according to an embodiment of the present disclosure may include an adhesive layer. For example, the first cover member 133a may include a base film and an adhesive layer in the base film and connected or coupled to the first surface of the vibration part 131. For example, the adhesive layer may include an electrically insulating material having an adhesive property and capable of compression and decompression.

[0250] The first cover member 133a according to another embodiment of the present disclosure may be connected or coupled to the first surface of the vibration part 131 through the first adhesive layer 133b. For example, the first cover member 133a may be connected or coupled to the first surface of the vibration part 131 or the first electrode layer 131b through the first adhesive layer 133b. For example, the first cover member 133a may be connected or coupled to the first surface of the vibration part 131 or the first electrode layer 131b through the first adhesive layer 133b according to a film lamination process. The first adhesive layer 133b may be configured to surround the entire first surface of the vibration part 131 or a portion of the side surface (or lateral surface).

[0251] The cover member 133 according to an embodiment of the present disclosure may include a second adhesive layer 133 c .

[0252] The second adhesive layer 133c may be disposed at the second surface of the vibration part 131. The second adhesive layer 133c may be configured to cover the second electrode layer 131c of the vibration part 131. The second adhesive layer 133c may be configured to protect the second surface of the vibration part 131 and the second electrode layer 131c. The second adhesive layer 133c may be configured to surround the entire second surface or a portion of the side surface (or lateral surface) of the vibration part 131. For example, the second adhesive layer 133c may be a protective layer or a protective member.

[0253] The second adhesive layer 133c may be connected or coupled to the first adhesive layer 133b in the side surface (or lateral surface) of the vibration portion 131 or the peripheral portion of the first cover member 133a. Therefore, the first adhesive layer 133b and the second adhesive layer 133c may be configured to surround or completely surround the vibration portion 131. However, in another embodiment of the present disclosure, the first adhesive layer 133b and the second adhesive layer 133c may not completely surround the vibration portion 131. The first adhesive layer 133b and the second adhesive layer 133c may be configured to cover or surround all surfaces of the vibration portion 131. For example, the vibration portion 131 may be inserted (or accommodated) or embedded (or built-in) in the interior of the adhesive layer including the first adhesive layer 133b and the second adhesive layer 133c.

[0254] The cover member 133 may be provided by Figures 2 to 12 The connecting member 120 shown in FIG. 1 is connected or coupled to the vibration member 110. For example, any one of the first cover member 133a and the second adhesive layer 133c can be connected by Figures 2 to 12 The connecting member 120 shown in FIG. 1 is connected or coupled to the vibration member 110 .

[0255] The cover member 133 according to an embodiment of the present disclosure may further include a second cover member 133 d , but the embodiment of the present disclosure is not limited thereto.

[0256] The second cover member 133d may be provided at the second surface of the vibration portion 131. For example, the second cover member 133d may be configured to cover the second electrode layer 131c of the vibration portion 131. For example, the second cover member 133d may be configured to have a larger size than the vibration portion 131, and may be configured to have the same size as the vibration portion 131. The second cover member 133d may be configured to protect the second surface of the vibration portion 131 and the second electrode layer 131c.

[0257] The first cover member 133a and the second cover member 133d according to an embodiment of the present disclosure may include the same material or different materials. For example, each of the first cover member 133a and the second cover member 133d may be a polyimide film, a polyethylene naphthalate film, or a polyethylene terephthalate film, but the embodiments of the present disclosure are not limited thereto.

[0258] The second cover member 133d may be connected or coupled to the second surface of the vibration part 131 or the second electrode layer 131c through the second adhesive layer 133c. For example, the second cover member 133d may be connected or coupled to the second surface of the vibration part 131 or the second electrode layer 131c through the second adhesive layer 133c according to a film lamination process.

[0259] The vibration part 131 may be disposed or inserted (or accommodated) between the first cover member 133a and the second cover member 133d. For example, the vibration part 131 may be inserted (or accommodated) or embedded (or built-in) inside the adhesive layer including the first adhesive layer 133b and the second adhesive layer 133c.

[0260] Each of the first adhesive layer 133b and the second adhesive layer 133c according to an embodiment of the present disclosure may include an electrically insulating material having an adhesive property and capable of compression and decompression. For example, each of the first adhesive layer 133b and the second adhesive layer 133c may include epoxy resin, acrylic resin, silicone resin, polyurethane resin, pressure sensitive adhesive (PSA), optically clear adhesive (OCA) or optically clear resin (OCR), etc., but embodiments of the present disclosure are not limited thereto.

[0261] The first adhesive layer 133b and the second adhesive layer 133c may be disposed between the first cover member 133a and the second cover member 133d to surround the vibration part 131. For example, one or more of the first adhesive layer 133b and the second adhesive layer 133c may be disposed to surround the vibration part 131.

[0262] Either one of the first cover member 133a and the second cover member 133d may be Figures 2 to 12 The connecting member 120 shown in FIG. 1 is connected or coupled to the vibration member 110 .

[0263] The vibration devices 130 and 230 according to an embodiment of the present disclosure may further include signal supply members 137 and 237. For example, the vibration device 130 may further include a signal supply member 137. For example, the second vibration device 230 may further include a second signal supply member 237. In the following description, the signal supply member 137 and the second signal supply member 237 may be referred to as signal supply members 137 and 237.

[0264] The signal supply members 137 and 237 may be configured to supply a driving signal supplied from the driving circuit portion to the vibration portion 131. The signal supply members 137 and 237 may be configured to be electrically connected to the vibration portion 131. The signal supply members 137 and 237 may be configured to be electrically connected to the first electrode layer 131b and the second electrode layer 131c of the vibration portion 131.

[0265] A portion of the signal supply members 137 and 237 may be accommodated (or inserted) between the cover member 133 and the vibration part 131. For example, a portion of the signal supply members 137 and 237 may be accommodated (or inserted) between the first surface of the vibration part 131 and the first cover member 133a. For example, a portion of the signal supply members 137 and 237 may be accommodated (or inserted) between the first cover member 133a and the second cover member 133d.

[0266] In addition, the signal supply members 137 and 237 may be disposed on surfaces of the vibration part 131 that are opposite to each other. However, in another embodiment, the signal supply members 137 and 237 may be disposed on the same side of the vibration part 131 as each other.

[0267] According to an embodiment of the present disclosure, the end portions (or distal portions or one side) of the signal supply members 137 and 237 may be disposed or inserted (or accommodated) between one peripheral portion of the cover member 133 and the vibration portion 131. For example, the end portions (or distal portions or one side) of the signal supply members 137 and 237 may be disposed or inserted (or accommodated) between one peripheral portion of the first cover member 133a and the first surface of the vibration portion 131.

[0268] According to another embodiment of the present disclosure, the end portion (or distal portion or one side or part) of the signal supply member 137 and 237 can be arranged or inserted (or accommodated) between a peripheral portion of the first cover member 133a and a peripheral portion of the second cover member 133d. A peripheral portion of the first cover member 133a and a peripheral portion of the second cover member 133d can accommodate or vertically (or up and down) cover the end portion (or distal portion or one side) of the signal supply member 137 and 237. Therefore, the signal supply member 137 and 237 can be integrated with the vibration device 130 and 230. For example, the signal supply member 137 and 237 can 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 embodiment of the present disclosure is not limited thereto.

[0269] The signal supply members 137 and 237 according to the embodiment of the present disclosure may include a base member 137a and a plurality of signal lines 137b and 137c. For example, the signal supply members 137 and 237 may include a base member 137a, a first signal line 137b, and a second signal line 137c.

[0270] The base member 137a may include a transparent or opaque plastic material, but the embodiments of the present disclosure are not limited thereto. The base member 137a may have a certain width along the first direction X, and may extend long along a second direction Y intersecting the first direction X.

[0271] The first signal line 137b and the second signal line 137c may be disposed at a first surface of the base member 137a parallel to 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 137b and the second signal line 137c may be disposed at the first surface of the base member 137a in parallel with each other. For example, the first signal line 137b and the second signal line 137c may be implemented in a line shape by patterning a metal layer (or a conductive layer) formed or deposited at the first surface of the base member 137a.

[0272] End portions (or distal end portions or one side) of the first signal line 137 b and the second signal line 137 c may be separated from each other, and thus, may be individually bent or curved.

[0273] The end portion (or distal portion or one side or part) of the first signal line 137b may be electrically connected to the first electrode layer 131b of the vibration part 131. For example, the end portion of the first signal line 137b may be electrically connected to at least a portion of the first electrode layer 131b of the vibration part 131 in one peripheral portion of the first cover member 133a. For example, the end portion (or distal portion or one side or part) of the first signal line 137b may be electrically connected and directly connected to at least a portion of the first electrode layer 131b of the vibration part 131. For example, the end portion (or distal portion or one side or part) of the first signal line 137b may be electrically connected to or directly contact the first electrode layer 131b of the vibration part 131. For example, the end portion of the first signal line 137b may be electrically connected to the first electrode layer 131b by a conductive double-sided tape. Therefore, the first signal line 137b may be configured to supply the first drive signal supplied from the drive circuit part to the first electrode layer 131b of the vibration part 131.

[0274] The end portion (or distal portion or one side or a portion) of the second signal line 137c may be electrically connected to the second electrode layer 131c of the vibration portion 131. For example, the end portion of the second signal line 137c may be electrically connected to at least a portion of the second electrode layer 131c of the vibration portion 131 in one peripheral portion of the second cover member 133d. For example, the end portion of the second signal line 137c may be electrically connected and directly connected to at least a portion of the second electrode layer 131c of the vibration portion 131. For example, the end portion of the second signal line 137c may be electrically connected to or directly contact the second electrode layer 131c of the vibration portion 131. For example, the end portion of the second signal line 137c may be electrically connected to the second electrode layer 131c of the vibration portion 131 by a conductive double-sided tape. Therefore, the second signal line 137c may be configured to supply the second drive signal supplied from the drive circuit portion to the second electrode layer 131c of the vibration portion 131.

[0275] The signal supply members 137 and 237 according to the embodiment of the present disclosure may further include an insulating layer 137 d .

[0276] An insulating layer 137 d may be disposed at the first surface of the base member 137 a to cover each of the first signal line 137 b and the second signal line 137 c except for an end portion (or one side) of the signal supply members 137 and 237 .

[0277] According to an embodiment of the present disclosure, an end portion (or one side or a portion) of the signal supply member 137 and 237 including an end portion (or one side or a portion) of the base member 137a and an end portion (or one side or a portion) 137da of the insulating layer 137d may be inserted (or accommodated) between the cover member 133 and the vibration portion 131, and may be fixed between the cover member 133 and the vibration portion 131 by a first adhesive layer 133b and a second adhesive layer 133c.

[0278] According to an embodiment of the present disclosure, an end portion (or one side) of the signal supply member 137 and 237 including an end portion (or one side or a portion) of the base member 137a and an end portion (or one side or a portion) 137da of the insulating layer 137d may be inserted (or accommodated) between the first cover member 133a and the second cover member 133d, and may be fixed between the first cover member 133a and the second cover member 133d by the first adhesive layer 133b and the second adhesive layer 133c. Therefore, an end portion (or one side or a portion) of the first signal line 137b may remain electrically connected to the first electrode layer 131b of the vibration portion 131, and an end portion (or one side or a portion) of the second signal line 137c may remain electrically connected to the second electrode layer 131c of the vibration portion 131. In addition, the end portion (or one side or a portion) of the signal supply members 137 and 237 can be inserted (or accommodated) and fixed between the vibration portion 131 and the first cover member 133a, and thus, the contact defect between the vibration devices 130 and 230 and the signal supply members 137 and 237 caused by the movement of the signal supply members 137 and 237 can be prevented.

[0279] In the signal supply members 137 and 237 according to the embodiments of the present disclosure, each of the end portion (or one side) of the base member 137a and the end portion (or one side or part) 137da of the insulating layer 137d can be removed. For example, each of the end portion of the first signal line 137b and the end portion of the second signal line 137c can be exposed to the outside without being supported or covered by each of the end portion (or one side or part) 137da of the base member 137a and the end portion (or one side or part) of the insulating layer 137d, respectively. For example, the end portion (or one side or part) of each of the first signal line 137b and the second signal line 137c can protrude (or extend) from the end of the base member 137a or the end of the insulating layer 137d to have a certain length. Therefore, each of the end portions (or distal portions or one side or part) of each of the first signal line 137b and the second signal line 137c can be bent individually or independently.

[0280] An end portion (or one side or a portion) of the first signal line 137b that is not supported by an end portion (or one side or a portion) 137da of the base member 137a and an end portion (or one side or a portion) 137d of the insulating layer 137d may be directly connected to or directly contact the first electrode layer 131b of the vibration portion 131. An end portion (or one side or a portion) of the second signal line 137c that is not supported by an end portion (or one side or a portion) 137da of the base member 137a and an end portion (or one side or a portion) 137d of the insulating layer 137d may be directly connected to or directly contact the second electrode layer 131c of the vibration portion 131.

[0281] According to an embodiment of the present disclosure, a portion of the signal supply members 137 and 237 or a portion of the base member 137a may be disposed or inserted (or accommodated) between the cover member 133 and the vibration part 131, and thus, the signal supply members 137 and 237 may be integrated with the vibration part 131. For example, a portion of the signal supply members 137 and 237 or a portion of the base member 137a may be disposed or inserted (or accommodated) between the first cover member 133a and the second cover member 133d, and thus, the signal supply members 137 and 237 may be integrated with the vibration devices 130 and 230. Therefore, the vibration devices 130 and 230 and the signal supply members 137 and 237 may be configured as one part (or one element or one component), and thus, a single material effect may be obtained.

[0282] According to an embodiment of the present disclosure, the first signal line 137b and the second signal line 137c of the signal supply members 137 and 237 may be integrated with the vibration devices 130 and 230, and thus, a welding process for electrical connection between the vibration devices 130 and 230 and the signal supply members 137 and 237 may not be required. Therefore, the manufacturing process and structure of the vibration devices 130 and 230 may be simplified, and the danger associated with the welding process may be reduced.

[0283] Fig.26 is a perspective view showing a vibration layer according to another embodiment of the present disclosure. Fig.26 The above reference Figure 23 to Figure 25 Another embodiment of a vibration layer is described.

[0284] Reference Fig.24 and Fig.26 The vibration layer 131a according to another embodiment of the present disclosure may include a plurality of first portions 131a1 and a plurality of second portions 131a2. For example, the plurality of first portions 131a1 and the plurality of second portions 131a2 may be alternately and repeatedly disposed along the first direction X (or the second direction Y).

[0285] Each of the plurality of first portions 131a1 may include an inorganic material portion having a piezoelectric effect (or piezoelectric properties). For example, each of the plurality of first portions 131a1 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 131a1 may be an inorganic portion, an inorganic material portion, a piezoelectric portion, a piezoelectric material portion, or an electroactive portion, but the embodiments of the present disclosure are not limited thereto.

[0286] According to an embodiment of the present disclosure, each of the plurality of first portions 131a1 may have a first width W1 parallel to the first direction X (or the second direction Y), and may extend along the second direction Y (or the first direction X). Figure 23 to Figure 25 The described vibration layer 131 a is substantially the same, and thus, a repeated description thereof may be omitted.

[0287] Each of the plurality of second portions 131a2 may be disposed between the plurality of first portions 131a1. For example, each of the plurality of first portions 131a1 may be disposed between two adjacent second portions 131a2 in the plurality of second portions 131a2. Each of the plurality of second portions 131a2 may have a second width W2 parallel to the first direction X (or the second direction Y), and may extend along the second direction Y (or the first direction X). The first width W1 may be the same as or different from the second width W2. For example, the first width W1 may be greater than the second width W2. For example, the first portion 131a1 and the second portion 131a2 may include a line shape or a stripe shape having the same size or different sizes. However, in another embodiment, the first width W1 may be less than the second width W2.

[0288] Each of the plurality of second parts 131a2 may be configured to fill a gap between two adjacent first parts in the plurality of first parts 131a1. Each of the plurality of second parts 131a2 may be configured to fill a gap between two adjacent first parts in the plurality of first parts 131a1, and therefore, may be connected to a lateral surface of a first part 131a1 adjacent thereto or attached to a lateral surface of a first part 131a1 adjacent thereto. According to an embodiment of the present disclosure, each of the plurality of first parts 131a1 and the plurality of second parts 131a2 may be disposed (or arranged) in parallel with each other at the same plane (or the same layer). Therefore, the vibration layer 131a may be expanded to a desired size or length by the lateral coupling (or connection) of the first part 131a1 and the second part 131a2.

[0289] According to an embodiment of the present disclosure, each of the plurality of second parts 131a2 can absorb the impact applied to the first part 131a1, and therefore, the overall durability of the first part 131a1 can be enhanced and flexibility can be provided to the vibration layer 131a. Each of the plurality of second parts 131a2 can include an organic material having a ductile property. For example, each of the plurality of second parts 131a2 can include one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but the embodiment of the present disclosure is not limited thereto. For example, each of the plurality of second parts 131a2 can be an organic part, an organic material part, an adhesive part, a stretching part, a bending part, a damping part, or an extension part, but the embodiment of the present disclosure is not limited thereto.

[0290] A first surface of each of the plurality of first portions 131a1 and the plurality of second portions 131a2 may be commonly connected to the first electrode layer 131b. A second surface of each of the plurality of first portions 131a1 and the plurality of second portions 131a2 may be commonly connected to the second electrode layer 131c.

[0291] A plurality of first parts 131a1 and a plurality of second parts 131a2 may be arranged (or connected) in the same plane, and therefore, the vibration layer 131a according to another embodiment of the present disclosure may have a single film type. Therefore, the vibration part 131 or the vibration device 130 and 230 including the vibration layer 131a according to another embodiment of the present disclosure may be vibrated by the first part 131a1 having vibration characteristics, and may be bent into a curved shape by the second part 131a2 having flexibility.

[0292] Fig. 27 is a perspective view showing a vibration layer according to another embodiment of the present disclosure. Fig. 27 The above reference Figure 23 to Figure 25 Another embodiment of a vibration layer is described.

[0293] Reference Fig.24 and Fig. 27 , the vibration layer 131 a according to another embodiment of the present disclosure may include a plurality of first portions 131 a 3 and a second portion 131 a 4 disposed between the plurality of first portions 131 a 3 .

[0294] Each of the plurality of first portions 131a3 may be disposed to be spaced apart from each other in each of the first direction X and the second direction Y. For example, each of the plurality of first portions 131a3 may have a hexahedral shape having the same size and may be disposed in a lattice shape, but embodiments of the present disclosure are not limited thereto. For example, each of the plurality of first portions 131a3 may have a circular plate, an elliptical plate, or a polygonal plate having the same size as each other, but embodiments of the present disclosure are not limited thereto.

[0295] Each of the plurality of first portions 131a3 may be the same as that referred to above. Fig.26 The described first portion 131a1 is substantially the same, and therefore, a repeated description thereof may be omitted.

[0296] The second portion 131a4 may be disposed between the plurality of first portions 131a3 along each of the first direction X and the second direction Y. The second portion 131a4 may be configured to fill a gap between two adjacent first portions 131a3, or to be adjacent to each of the plurality of first portions 131a3, or to surround each of the plurality of first portions 131a3, and thus, the second portion 131a4 may be connected to or attached to the first portion 131a3 adjacent thereto. The second portion 131a4 may be similar to the first portion 131a3 described above. Fig.26 The described second portion 131a2 is substantially the same, and therefore, a repeated description thereof may be omitted.

[0297] A first surface of each of the plurality of first portions 131a3 and second portions 131a4 may be commonly connected to the first electrode layer 131b. A second surface of each of the plurality of first portions 131a3 and second portions 131a4 may be commonly connected to the second electrode layer 131c.

[0298] A plurality of first portions 131a3 and second portions 131a4 may be arranged (or connected) in the same plane, and therefore, the vibration layer 131a according to another embodiment of the present disclosure may have a single film type. Therefore, the vibration part 131 or the vibration devices 130 and 230 including the vibration layer 131a according to another embodiment of the present disclosure may be vibrated by the first portion 131a3 having vibration characteristics, and may be bent into a curved shape by the second portion 131a4 having flexibility.

[0299] Fig.28 A vibration device according to another embodiment of the present disclosure is shown. Fig.28 The above reference Figures 1 to 22 Description of the vibration device.

[0300] Reference Figure 2 and Fig.28 , the vibration devices 130 and 230 according to another embodiment of the present disclosure may include two or more vibration generating parts 130-1 and 130-2. For example, the vibration devices 130 and 230 may include a first vibration generating part 130-1 and a second vibration generating part 130-2.

[0301] The first vibration generating part 130-1 and the second vibration generating part 130-2 may overlap or stack each other to shift (or drive or vibrate) in the same direction to maximize the amplitude displacement of the vibration devices 130 and 230 or the amplitude displacement of the vibration member. For example, the first vibration generating part 130-1 and the second vibration generating part 130-2 may have substantially the same size, but the embodiments of the present disclosure are not limited thereto. For example, the first vibration generating part 130-1 and the second vibration generating part 130-2 may have substantially the same size within the error range of the manufacturing process, but the embodiments of the present disclosure are not limited thereto. Therefore, the first vibration generating part 130-1 and the second vibration generating part 130-2 may maximize the amplitude displacement of the vibration devices 130 and 230 and / or the amplitude displacement of the vibration member. However, in another embodiment, the first vibration generating part 130-1 and the second vibration generating part 130-2 may have different sizes from each other.

[0302] According to an embodiment of the present disclosure, any one of the first vibration generating unit 130-1 and the second vibration generating unit 130-2 can be Figures 2 to 22 The connection members 120 and 220 shown in FIG. 1 are connected or coupled to the vibration member 110. For example, the first vibration generating part 130-1 may be connected or coupled to the vibration member 110 through the connection members 120 and 220.

[0303] Each of the first vibration generating part 130 - 1 and the second vibration generating part 130 - 2 may be the same as that described above with reference to FIG. Figure 23 to Figure 27 The described vibration devices 130 and 230 are the same or substantially the same, and thus, the same reference numerals refer to the same elements and a repeated description thereof may be omitted.

[0304] The vibration device 130 and 230 according to another embodiment of the present disclosure may further include an intermediate adhesive member 130M.

[0305] The intermediate adhesive member 130M may be disposed or connected between the first vibration generating part 130-1 and the second vibration generating part 130-2. As an embodiment of the present disclosure, the intermediate adhesive member 130M may be disposed or connected between the second adhesive layer 133c of the first vibration generating part 130-1 and the first cover member 133a of the second vibration generating part 130-2. As another embodiment of the present disclosure, the intermediate adhesive member 130M may be disposed or connected between the second cover member 133d of the first vibration generating part 130-1 and the first cover member 133a of the second vibration generating part 130-2. For example, the intermediate adhesive member 130M may be an intermediate member, an adhesive member, or a connecting member, but embodiments of the present disclosure are not limited thereto.

[0306] The intermediate adhesive member 130M according to an embodiment of the present disclosure may be configured with a material including an adhesive layer, and the adhesive layer has good adhesive force or attachment force relative to each of the first vibration generating unit 130-1 and the second vibration generating unit 130-2. For example, the intermediate adhesive member 130M may include a foam pad, a double-sided tape, a double-sided foam tape, a double-sided foam pad, a double-sided adhesive tape or an adhesive, etc., but the embodiments of the present disclosure are not limited thereto. For example, the adhesive layer of the intermediate adhesive member 130M may include epoxy resin, acrylic acid, silicone resin or polyurethane, but the embodiments of the present disclosure are not limited thereto. For example, the adhesive layer of the intermediate adhesive member 130M may include a polyurethane-based material (or substance) having a relatively ductile property. Therefore, the vibration loss caused by the displacement interference between the first vibration generating unit 130-1 and the second vibration generating unit 130-2 can be reduced or minimized, or each of the first vibration generating unit 130-1 and the second vibration generating unit 130-2 can be freely displaced (or vibrated or driven).

[0307] The vibration device 130 and 230 according to another embodiment of the present disclosure may include a first vibration generating part 130-1 and a second vibration generating part 130-2, which are stacked (or piled or overlapped) to vibrate (or shift or drive) in the same direction, and thus, the displacement amount or amplitude displacement can be maximized or increased. Therefore, the displacement amount (or bending force or driving force) or amplitude displacement of the vibration member 110 can be further maximized or further increased, thereby further enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords.

[0308] Fig.29 A vehicle device according to an embodiment of the present disclosure is shown. Fig.30 is a cross-sectional view showing a vehicle apparatus according to an embodiment of the present disclosure.

[0309] Reference Fig.29 and Fig.30The vehicle device 500 according to an embodiment of the present disclosure may include one or more sound generating devices 510 configured to output sound at one or more of the external material 520 and the internal material 530. For example, one or more of the external material 520 and the internal material 530 may output sound based on vibration of the one or more sound generating devices 510. Fig.29 and Fig.30 , a portion indicated by a dotted line indicates a portion where one or more sound generating devices 510 may be set.

[0310] One or more sound generating devices 510 may be disposed at the external material 520 or the internal material 530, or disposed between the external material 520 and the internal material 530 to output sound. For example, one or more sound generating devices 510 may be disposed at at least one or more of the external material 520, the internal material 530, and between the external material 520 and the internal material 530 to output sound.

[0311] The interior material 530 according to an embodiment of the present disclosure may include at least one or more of an instrument panel 530A, a pillar interior material 530B, a roof interior material 530C, a door interior material 530D, a seat interior material, a handle interior material 530F, a floor interior material 530G, and a trunk interior material 530J. One or more sound generating devices 510 may vibrate at least one of the instrument panel 530A, the pillar interior material 530B, the roof interior material 530C, the door interior material 530D, the seat interior material, the handle interior material 530F, the floor interior material 530G, and the trunk interior material 530J, however, the present disclosure is not limited thereto. One or more sound generating devices 510 may be disposed between the exterior material 520 and at least one or more of the instrument panel 530A, the pillar interior material 530B, the roof interior material 530C, the door interior material 530D, the seat interior material, the handle interior material 530F, and the floor interior material 530G. Therefore, the one or more sound generating devices 510 may output sounds of one or more channels.

[0312] At least one or more of the one or more sound generating devices 510 may be configured to be transparent or translucent. For example, when the window is completely transparent, at least one or more of the one or more sound generating devices 510 may be configured to be transparent and may be set at the middle area or the peripheral area of ​​the window. When the glass window includes a translucent portion or an opaque portion, at least one or more of the one or more sound generating devices 510 may be configured to be translucent or opaque and may be set to correspond to the translucent portion or the opaque portion of the glass window. For example, at least one or more of the one or more sound generating devices 510 may be a transparent vibration generator, a transparent vibration generating device, or a transparent sound generating device, but the embodiments of the present disclosure are not limited thereto.

[0313] Reference Fig.29 and Fig.30 According to an embodiment of the present disclosure, one or more sound generating devices 510 may be disposed between the dash panel and the instrument panel 530A, and may be configured to cause the instrument panel 530A to vibrate indirectly or directly to output sound. For example, the one or more sound generating devices 510 may include reference Figures 1 to 28 The acoustic device 100 described above is described, and therefore, a repeated description thereof may be omitted. For example, the one or more sound generating devices 510 may be a dashboard speaker or a first speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0314] According to an embodiment of the present disclosure, at least one or more of the dash panel and the instrument panel 530A may include a first area corresponding to the driver's seat DS, a second area corresponding to the front passenger seat FPS, and a third area (or middle area) between the first area and the second area. One or more of the dash panel and the instrument panel 530A may include a fourth area tilted to face the front passenger seat FPS. According to an embodiment of the present disclosure, one or more sound generating devices 510 may be configured to vibrate at least one or more of the first to fourth areas of the instrument panel 530A. For example, one or more sound generating devices 510 may be arranged at each of the first and second areas of the instrument panel 530A, or may be arranged at each of the first to fourth areas. For example, one or more sound generating devices 510 may be arranged at each of the first and second areas of the instrument panel 530A, or may be arranged at at least one or more of the first to fourth areas. For example, one or more sound generating devices 510 may be configured to output sounds within a range of 150Hz to 20kHz. For example, the one or more sound generating devices 510 configured to vibrate at least one or more of the first to fourth areas of the instrument panel 530A may have the same sound output characteristics or different sound output characteristics. For example, the one or more sound generating devices 510 configured to vibrate each of the first to fourth areas of the instrument panel 530A may have the same sound output characteristics or different sound output characteristics.

[0315] One or more sound generating devices 510 according to an embodiment of the present disclosure may be disposed between the pillar panel and the pillar inner material 530B, and may be configured to cause the pillar inner material 530B to vibrate indirectly or directly to output sound. For example, the one or more sound generating devices 510 may include the above reference Figures 1 to 28 The acoustic device 100 described above is described, and therefore, a repeated description thereof may be omitted. For example, one or more sound generating devices 510 may be referred to as a column speaker, a tweeter, or a second speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0316] According to an embodiment of the present disclosure, the pillar panel may include a first pillar (or A pillar) disposed at both sides of the front window, a second pillar (or B pillar) disposed at both sides of the center of the vehicle body, and a third pillar (or C pillar) disposed at both sides of the rear portion of the vehicle body. The pillar inner material 530B may include a first pillar inner material 530B1 covering the first pillar, a second pillar inner material 530B2 covering the second pillar, and a third pillar inner material 530B3 covering the third pillar. According to an embodiment of the present disclosure, one or more sound generating devices 510 may be disposed at one or more of an area between the first pillar and the first pillar inner material 530B1, an area between the second pillar and the second pillar inner material 530B2, and an area between the third pillar and the third pillar inner material 530B3, and thus at least one or more of the first to third pillar inner materials 530B1, 530B2, and 530B3 may be vibrated. For example, one or more sound generating devices 510 may be configured to output sounds within a range of 2 kHz to 20 kHz, but embodiments of the present disclosure are not limited thereto. For example, one or more sound generating devices 510 may be configured to output sounds within a range of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 configured to vibrate at least one or more of the first to third pillar inner materials 530B1, 530B2, and 530B3 may have the same sound output characteristics or different sound output characteristics.

[0317] One or more sound generating devices 510 according to an embodiment of the present disclosure may be disposed between the roof panel and the roof interior material 530C, and may be configured to cause the roof interior material 530C to vibrate indirectly or directly to output sound. For example, one or more sound generating devices 510 may be configured to be transparent or translucent. For example, one or more sound generating devices 510 may include reference Figures 1 to 28 The acoustic device 100 described above is described, and therefore, a repeated description thereof may be omitted. For example, the one or more sound generating devices 510 may be a roof speaker or a third speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0318] According to an embodiment of the present disclosure, at least one or more of the roof panel and the roof interior material 530C covering the roof panel may include a first area corresponding to the driver's seat DS, a second area corresponding to the front passenger seat FPS, a third area corresponding to the area between the driver's seat DS and the front passenger seat FPS, a fourth area corresponding to the first rear passenger seat RPS1 behind the driver's seat DS, a fifth area corresponding to the second rear passenger seat RPS2 behind the front passenger seat FPS, a sixth area corresponding to the area between the first rear passenger seat RPS1 and the second rear passenger seat RPS2, and a seventh area between the third area and the sixth area. For example, one or more sound generating devices 510 may be configured to vibrate at least one or more of the first area to the seventh area of ​​the roof interior material 530C. For example, one or more sound generating devices 510 may be configured to output sounds in the range of 150Hz to 20kHz. For example, one or more sound generating devices 510 configured to vibrate at least one or more of the first area to the seventh area of ​​the roof interior material 530C may have the same sound output characteristics or different sound output characteristics. For example, the one or more sound generating devices 510 configured to vibrate each of the first to seventh regions of the roof interior material 530C may have the same sound output characteristics or different sound output characteristics. For example, at least one or more of the one or more sound generating devices 510 configured to vibrate at least one or more of the first to seventh regions of the roof interior material 530C may be configured to output a sound within a range of 2 kHz to 20 kHz, while another may be configured to output a sound within a range of 150 Hz to 20 kHz. For example, at least one or more of the one or more sound generating devices 510 configured to vibrate each of the first to seventh regions of the roof interior material 530C may be configured to output a sound within a range of 2 kHz to 20 kHz, while another may be configured to output a sound within a range of 150 Hz to 20 kHz.

[0319] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be disposed between the door frame and the door interior material 530D, and may be configured to cause the door interior material 530D to vibrate indirectly or directly to output sound. For example, the one or more sound generating devices 510 may include the above reference Figures 1 to 28 The acoustic device 100 described above is described, and therefore, a repeated description thereof may be omitted. For example, one or more sound generating devices 510 may be referred to as a door speaker or a fourth speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0320] According to an embodiment of the present disclosure, at least one or more of the door frame and the door interior material 530D may include an upper region, a middle region, and a lower region relative to the height direction Z. For example, one or more sound generating devices 510 may be disposed at 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 530D, and thus, at least one or more of the upper region, the middle region, and the lower region of the door interior material 530D may be vibrated.

[0321] According to an embodiment of the present disclosure, the upper region of the door interior material 530D may include a curved portion having a relatively small radius of curvature. Fig.26 and Fig. 27 With the flexibility of the vibration layer 131a described, one or more sound generating devices 510 for vibrating the upper region of the door interior material 530D can be bent into a shape that follows the shape of the curved portion (or surface topology) of the upper region of the door interior material 530D.

[0322] According to an embodiment of the present disclosure, the door frame may include a first door frame (or a left front door frame), a second door frame (or a right front door frame), a third door frame (or a left rear door frame), and a fourth door frame (or a right rear door frame). According to an embodiment of the present disclosure, the door interior material 530D may include a first door interior material (or a left front door interior material) 530D1 covering the first door frame, a second door interior material (or a right front door interior material) 530D2 covering the second door frame, a third door interior material (or a left rear door interior material) 530D3 covering the third door frame, and a fourth door interior material (or a right rear door interior material) 530D4 covering the fourth door frame. For example, one or more sound generating devices 510 can be set in at least one or more of the upper area, middle area and lower area between each of the first to fourth door frames and the first to fourth door interior materials 530D1 to 530D4, and thus, at least one or more of the upper area, middle area and lower area of ​​each of the first to fourth door interior materials 530D1 to 530D4 can be vibrated.

[0323] According to an embodiment of the present disclosure, one or more sound generating devices 510 configured to vibrate the upper region of each of the first to fourth door interior materials 530D1 to 530D4 may be configured to output a sound within a range of 2 kHz to 20 kHz, or may be configured to output a sound within a range of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 configured to vibrate the upper region of at least one or more of the first to fourth door interior materials 530D1 to 530D4 may be configured to output a sound within a range of 2 kHz to 20 kHz, or may be configured to output a sound within a range of 150 Hz to 20 kHz.

[0324] According to an embodiment of the present disclosure, one or more sound generating devices 510 configured to vibrate the middle area or / and the lower area of ​​at least one or more of the first to fourth door interior materials 530D1 to 530D4 may be configured to output a sound within a range of 150 Hz to 20 kHz. One or more sound generating devices 510 configured to vibrate the middle area or / and the lower area of ​​each of the first to fourth door interior materials 530D1 to 530D4 may be configured to output a sound within a range of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 configured to vibrate the middle area or / and the lower area of ​​at least one or more of the first to fourth door interior materials 530D1 to 530D4 may be any one or more of a woofer, a mid-woofer, and a subwoofer. For example, the one or more sound generating devices 510 configured to vibrate the middle area or / and the lower area of ​​each of the first to fourth door interior materials 530D1 to 530D4 may be any one or more of a woofer, a mid-woofer, and a subwoofer.

[0325] The sound outputted from each of the one or more sound generating devices 510 provided at the first door interior material 530D1 and the one or more sound generating devices 510 provided at the second door interior material 530D2 may be combined and outputted. For example, the sound outputted from at least one or more of the one or more sound generating devices 510 provided at the first door interior material 530D1 and the one or more sound generating devices 510 provided at the second door interior material 530D2 may be combined and outputted. In addition, the sound outputted from the one or more sound generating devices 510 provided at the third door interior material 530D3 and the sound outputted from the one or more sound generating devices 510 provided at the fourth door interior material 530D4 may be combined and outputted.

[0326] According to an embodiment of the present disclosure, the upper area of ​​each of the first to fourth door interior materials 530D1 to 530D4 may include a first upper area adjacent to the instrument panel 530A, a second upper area adjacent to the rear seats RPS1, RPS2, and RPS3, and a third upper area between the first upper area and the second upper area. For example, one or more sound generating devices 510 may be disposed at one or more of the first to third upper areas of each of the first to fourth door interior materials 530D1 to 530D4. For example, one or more sound generating devices 510 may be disposed at the first upper area of ​​each of the first to second door interior materials 530D1 and 530D2, and may be disposed at one or more of the second and third upper areas of each of the first to second door interior materials 530D1 and 530D2. For example, one or more sound generating devices 510 may be disposed at one or more of the first upper region to the third upper region of at least one or more of the first door interior material 530D1 to the fourth door interior material 530D4. For example, one or more sound generating devices 510 configured to vibrate the first upper region of one or more of the first door interior material 530D1 and the second door interior material 530D2 may be configured to output a sound within a range of 2 kHz to 20 kHz, and one or more sound generating devices 510 configured to vibrate the second upper region and the third upper region of each of the first door interior material 530D1 and the second door interior material 530D2 may be configured to output a sound within a range of 2 kHz to 20 kHz, or may be configured to output a sound within a range of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 configured to vibrate one or more of the second upper area and the third upper area of ​​at least one or more of the first door interior material 530D1 and the second door interior material 530D2 can be configured to output sound in the range of 2kHz to 20kHz, or can be configured to output sound in the range of 150Hz to 20kHz.

[0327] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be disposed between the seat frame and the seat interior material 530E, and may be configured to cause the seat interior material 530E to vibrate indirectly or directly to output sound. For example, the one or more sound generating devices 510 may include the above reference Figures 1 to 28The acoustic device 100 described above is described, and therefore, a repeated description thereof may be omitted. For example, the one or more sound generating devices 510 may be referred to as a sheet speaker, a headrest speaker, a fifth speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0328] According to an embodiment of the present disclosure, the seat frame may include a first seat frame (or a driver's seat frame), a second seat frame (or a front passenger seat frame), a third seat frame (or a first passenger seat frame), a fourth seat frame (or a second passenger seat frame), and a fifth seat frame (or a third passenger seat frame). According to an embodiment of the present disclosure, the seat interior material may include 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.

[0329] According to an embodiment of the present disclosure, at least one or more of the first to fifth seat frames may include a seat floor frame, a seat rear frame, and a headrest frame. The seat interior material may include a seat floor interior material surrounding the seat floor frame, a seat rear interior material surrounding the seat rear frame, and a headrest interior material surrounding the headrest frame. At least one or more of the seat floor interior material, the seat rear interior material, and the headrest interior material may include a seat inner interior material and a seat outer interior material. The seat inner interior material may include a foam layer. The seat outer interior material may include a surface layer comprising fiber or leather. The seat outer interior material may also include a base layer, and the base layer includes a plastic material that supports the surface layer.

[0330] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be disposed at at least one or more of an area between a seat rear frame and a seat rear inner material and an area between a headrest frame and a headrest inner material, and thus, at least one or more of a seat outer inner material of a seat rear inner material and a seat outer inner material of a headrest inner material may be vibrated.

[0331] According to an embodiment of the present disclosure, one or more sound generating devices 510 arranged at at least one or more of the driver seat DS and the front passenger seat FPS may be arranged at at least one or more of the area between the seat rear frame and the seat rear inner material and the area between the headrest frame and the headrest inner material.

[0332] According to an embodiment of the present disclosure, one or more sound generating devices 510 disposed at at least one or more of the first to third passenger seats RPS1, RPS2, and RPS3 may be disposed between the headrest frame and the headrest inner material. For example, at least one or more of the first to third passenger seats RPS1, RPS2, and RPS3 may include one or more sound generating devices 510 disposed between the headrest frame and the headrest inner material.

[0333] According to an embodiment of the present disclosure, the one or more sound generating devices 510 vibrating the seat rear interior material of at least one or more of the driver seat DS and the front passenger seat FPS may be configured to output sound within a range of 150 Hz to 20 kHz.

[0334] According to an embodiment of the present disclosure, one or more sound generating devices 510 that vibrate the inner material of the headrests of at least one or more of the driver's seat DS, the front passenger seat FPS, and the first to third passenger seats RPS1, RPS2, and RPS3 may be configured to output sounds in the range of 2 kHz to 20 kHz, or may be configured to output sounds in the range of 150 Hz to 20 kHz.

[0335] Reference Fig.30 According to an embodiment of the present disclosure, one or more sound generating devices 510 may be disposed between the handle frame and the handle inner material 530F, and may be configured to cause the handle inner material 530F to vibrate indirectly or directly to output sound. For example, the one or more sound generating devices 510 may include the above reference Figures 1 to 28 The acoustic device 100 is described, and therefore, a repeated description thereof may be omitted. For example, the one or more sound generating devices 510 may be referred to as a handle speaker, a steering speaker, or a sixth speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0336] According to an embodiment of the present disclosure, the one or more sound generating devices 510 may provide a sound to the driver by indirectly or directly vibrating the handle inner material 530F. The sound output by the one or more sound generating devices 510 at the handle inner material 530F may be the same as or different from the sound output by at least one or more of the one or more sound generating devices 510 between the dash panel and the instrument panel 530A, the one or more sound generating devices 510 between the pillar panel and the pillar inner material 530B, the one or more sound generating devices 510 between the roof panel and the roof inner material 530C, the one or more sound generating devices 510 between the door frame and the door inner material 530D, and the one or more sound generating devices 510 between the seat frame and the seat inner material.

[0337] As an embodiment of the present disclosure, the one or more sound generating devices 510 at the handle inner material 530F may output sounds provided only to the driver of the vehicle instead of the first to third passenger seats RPS1 , RPS2 , and RPS3 .

[0338] As another embodiment of the present disclosure, sounds output by one or more sound generating devices 510 at the handle interior material 530F and sounds output by at least one or more of one or more sound generating devices 510 between the front panel and the instrument panel 530A, one or more sound generating devices 510 between the pillar panel and the pillar interior material 530B, one or more sound generating devices 510 between the roof panel and the roof interior material 530C, one or more sound generating devices 510 between the door frame and the door interior material 530D, and one or more sound generating devices 510 between the seat frame and the seat interior material can be combined and output.

[0339] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be disposed between the floor panel and the floor interior material 530G, and may be configured to cause the floor interior material 530G to vibrate indirectly or directly to output sound. One or more sound generating devices 510 may be disposed between the floor panel and the floor interior material 530G disposed between the front seats DS and FPS and the third rear passenger seat RPS3. For example, one or more sound generating devices 510 may include the above-referenced Figures 1 to 28The acoustic device 100 described above is not limited to the acoustic device 100, and therefore, a repeated description thereof may be omitted. For example, one or more sound generating devices 510 may be configured to output sounds in the range of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 may be referred to as floor speakers, bottom speakers, lower speakers, or seventh speakers, etc., but embodiments of the present disclosure are not limited thereto.

[0340] The vehicle device according to the embodiment of the present disclosure may further include one or more sound generating devices 510 disposed at the interior material 530 exposed to the indoor space. For example, the vehicle device according to the embodiment of the present disclosure may include only one or more sound generating devices 510 disposed at the interior material 530 exposed to the indoor space, instead of one or more sound generating devices 510 disposed at the interior material 530, or may include both one or more sound generating devices 510 disposed at the interior material 530 and one or more sound generating devices 510 disposed at the interior material 530 exposed to the indoor space. For example, one or more sound generating devices 510 disposed at the interior material 530 and / or one or more sound generating devices 510 disposed at the interior material 530 exposed to the indoor space may be disposed at the interior material 530 to output sound. For example, the interior material 530 may output sound based on the vibration of one or more sound generating devices (or vibration devices).

[0341] According to an embodiment of the present disclosure, the interior material 530 may further include a rearview mirror 530H, an overhead console 530I, a trunk interior material 530J, a glove box, and a sun visor, etc. However, embodiments of the present disclosure are not limited thereto.

[0342] One or more sound generating devices 510 according to an embodiment of the present disclosure may be provided at least one of the rearview mirror 530H, the overhead console 530I, the trunk interior material 530J, the glove box, and the sun visor. For example, one or more sound generating devices 510 may output sounds of one or more channels.

[0343] One or more sound generating devices 510 may be disposed at the rearview mirror 530H, and may be configured to cause the rearview mirror 530H to vibrate indirectly or directly to output sound. One or more sound generating devices 510 may be disposed between the mirror housing and the rearview mirror 530H supported by the mirror housing. For example, one or more sound generating devices 510 may include the above-referenced Figures 1 to 28The acoustic device 100 described above is not limited to the acoustic device 100, and therefore, a repeated description thereof may be omitted. For example, one or more sound generating devices 510 may be configured to output sounds in the range of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 may be referred to as a mirror speaker or an eighth speaker, etc., but the embodiments of the present disclosure are not limited thereto.

[0344] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be provided at an overhead console 530I, and may be configured to cause a console cover of the overhead console 530I to vibrate indirectly or directly to output sound. According to an embodiment of the present disclosure, the overhead console 530I may include a console box embedded in a roof panel, a lighting mechanism provided at the console box, and a console cover covering the lighting mechanism and the console box.

[0345] One or more sound generating devices 510 may be disposed between the console cover and the console box of the overhead console 530I and may cause the console cover to vibrate. For example, one or more sound generating devices 510 may be disposed between the console cover and the console box of the overhead console 530I and may cause the console cover to vibrate directly. For example, one or more sound generating devices 510 may include the above-referenced Figures 1 to 28 The acoustic device 100 described above is not limited to the above, and therefore, a repeated description thereof may be omitted. For example, one or more sound generating devices 510 may be configured to output sounds in the range of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 may be referred to as a console speaker, a lighting speaker, or a ninth speaker, etc., but the embodiments of the present disclosure are not limited thereto.

[0346] The vehicle device according to the embodiment of the present disclosure may further include a central lighting box provided at the central area of ​​the roof interior material 530C, a central lighting mechanism provided at the central lighting box, and a central lighting cover covering the central lighting mechanism. In this case, one or more sound generating devices 510 are also provided between the central lighting box and the central lighting cover of the central lighting mechanism, and the central lighting cover may also be vibrated.

[0347] Reference Fig.29 , one or more sound generating devices 510 may be disposed at the trunk interior material 530J, and may be configured to cause the trunk interior material 530J to vibrate indirectly or directly to output sound. The trunk interior material 530J may be disposed behind the first to third passenger seats RPS1, RPS2, and RPS3. For example, a portion of the trunk interior material 530J may be disposed below the rear window 540C.

[0348] One or more sound generating devices 510 may be provided at the rear surface of the trunk interior material 530J and may vibrate the trunk interior material 530J. For example, the one or more sound generating devices 510 may include the one or more sound generating devices described above with reference to FIG. Figures 1 to 28 The acoustic device 100 described above is described, and therefore, a repeated description thereof may be omitted. For example, one or more sound generating devices 510 may be referred to as a rear speaker or a tenth speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0349] According to an embodiment of the present disclosure, the trunk interior material 530J may include a first area corresponding to the first rear passenger seat RPS1, a second area corresponding to the second rear passenger seat RPS2, and a third area corresponding to the third rear passenger seat RPS3. According to an embodiment of the present disclosure, one or more sound generating devices 510 may be configured to vibrate at least one or more of the first area to the third area of ​​the trunk interior material 530J. For example, one or more sound generating devices 510 may be provided at each of the first area and the second area of ​​the trunk interior material 530J, or may be provided at each of the first area to the third area. For example, one or more sound generating devices 510 may be provided at at least one or more of the first area and the second area of ​​the trunk interior material 530J, or may be provided at at least one or more of the first area to the third area. For example, one or more sound generating devices 510 may be configured to output sounds within a range of 150Hz to 20kHz. For example, the one or more sound generating devices 510 configured to vibrate each of the first to third areas of the trunk interior material 530J may have the same sound output characteristics or different sound output characteristics. For example, the one or more sound generating devices 510 configured to vibrate at least one or more of the first to third areas of the trunk interior material 530J may have the same sound output characteristics or different sound output characteristics.

[0350] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be provided at a glove box, and may be configured to cause the glove box to vibrate indirectly or directly to output sound. The glove box may be provided at a dashboard 530A corresponding to a forward area relative to the front passenger seat FPS. One or more sound generating devices 510 may be provided directly on the glove box at the dashboard 530A, or inside the glove box at the dashboard 530A.

[0351] One or more sound generating devices 510 may be disposed at the inner surface of the glove box and may cause the glove box to vibrate. For example, the one or more sound generating devices 510 may include the one or more sound generating devices described above with reference to Figures 1 to 28 The acoustic device 100 described above is not limited to the acoustic device 100 described above, and therefore a repeated description thereof may be omitted. For example, the one or more sound generating devices 510 may be configured to output sounds in the range of 150 Hz to 20 kHz, or may be one or more of a woofer, a mid-woofer, and a subwoofer. For example, the one or more sound generating devices 510 may be referred to as a glove box speaker or an eleventh speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0352] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be provided at the sun visor and may be configured to vibrate the sun visor indirectly or directly to output sound. The sun visor may include a first sun visor corresponding to the driver seat DS and a second sun visor corresponding to the front passenger seat FPS.

[0353] One or more sound generating devices 510 may be disposed at at least one or more of the first sun visor and the second sun visor, and may cause at least one or more of the first sun visor and the second sun visor to vibrate indirectly or directly. For example, the one or more sound generating devices 510 may include the above reference Figures 1 to 28 The acoustic device 100 described above is not limited to the acoustic device 100, and therefore, a repeated description thereof may be omitted. For example, one or more sound generating devices 510 may be configured to output sounds in the range of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 may be referred to as a visor speaker or a twelfth speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0354] According to an embodiment of the present disclosure, one or more of the first sun visor and the second sun visor may further include a sun visor mirror. In this case, the one or more sound generating devices 510 may be configured to vibrate the sun visor mirror of at least one or more of the first sun visor and the second sun visor indirectly or directly. The one or more sound generating devices 510 that vibrate the sun visor mirror may include the above reference Figures 1 to 28 The acoustic device 100 is described above, and therefore, a repeated description thereof may be omitted.

[0355] Reference Fig.29, the vehicle device according to the embodiment of the present disclosure may further include one or more sound generating devices 510 disposed at the glass window 540. For example, one or more sound generating devices 510 may be disposed at the glass window 540 to output sound. For example, the glass window 540 may output sound based on the vibration of one or more sound generating devices (or vibration devices). For example, one or more sound generating devices 510 may be a window speaker, a transparent sound generating device, a transparent speaker, an opaque speaker, etc., but the embodiment of the present disclosure is not limited thereto.

[0356] One or more sound generating devices 510 according to an embodiment of the present disclosure may be configured to output sound by indirectly or directly vibrating the glass window 540. For example, the one or more sound generating devices 510 may include a reference Figures 1 to 28 One or more of the acoustic devices 100 described herein may be configured to be transparent, translucent, or opaque.

[0357] According to an embodiment of the present disclosure, the window 540 may include a front window 540A, a side window 540B and a rear window 540C. According to an embodiment of the present disclosure, the window 540 may also include a roof window 540D. For example, when the vehicle equipment includes a roof window 540D, a portion of the area of ​​each of the roof frame and the roof interior material 530C may be replaced with the roof window 540D. For example, when the vehicle equipment includes a roof window 540D, one or more sound generating devices 510 may be configured to make the peripheral portion (or edge portion) of the roof interior material 530C around the roof window 540D vibrate indirectly or directly to output sound. However, the embodiment of the present disclosure is not limited thereto. One or more sound generating devices 510 may be arranged at any window 540.

[0358] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be provided at the front window 540A, and may be configured to output sound based on vibration thereof, or to vibrate the front window 540A indirectly or directly to output sound.

[0359] According to an embodiment of the present disclosure, the front window 540A may include a first area corresponding to the driver's seat DS, a second area corresponding to the front passenger seat FPS, and a third area (or intermediate area) between the first area and the second area. For example, one or more sound generating devices 510 may be arranged at least one or more of the first area to the third area. For example, one or more sound generating devices 510 may be arranged at each of the first area and the second area of ​​the front window 540A, or may be arranged at each of the first area to the third area. For example, one or more sound generating devices 510 may be arranged at at least one or more of the first area and the second area of ​​the front window 540A, or may be arranged at at least one or more of the first area to the third area. For example, one or more sound generating devices 510 arranged at each of the first area to the third area of ​​the front window 540A may have the same sound output characteristics or different sound output characteristics. For example, one or more sound generating devices 510 arranged at at least one or more of the first area to the third area of ​​the front window 540A may have the same sound output characteristics or different sound output characteristics. For example, one or more sound generating devices 510 may be configured to output sounds of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 may be referred to as a front window speaker or a thirteenth speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0360] Reference Fig.30 , one or more sound generating devices 510 according to an embodiment of the present disclosure may be disposed at the side window 540B, and may be configured to output sound based on vibration thereof, or to vibrate the side window 540B indirectly or directly to output sound.

[0361] According to an embodiment of the present disclosure, the side window 540B may include a first side window (or left front window), a second side window (or right front window) 540B2, a third side window (or left rear window), and a fourth side window (or right rear window) 540B4.

[0362] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be provided at at least one or more of the first to fourth side windows 540B1 to 540B4. For example, at least one or more of the first to fourth side windows 540B1 to 540B4 may include one or more sound generating devices 510.

[0363] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be arranged at one or more of the first side window 540B1 to the fourth side window 540B4, and may be configured to output sound based on its vibration, or to vibrate the first side window 540B1 to the fourth side window 540B4 indirectly or directly to output sound. For example, one or more sound generating devices 510 may be configured to output sound within a range of 150Hz to 20kHz. For example, one or more sound generating devices 510 arranged at at least one or more of the first side window 540B1 to the fourth side window 540B4 may have the same sound output characteristics or different sound output characteristics. For example, one or more sound generating devices 510 may be configured to output sound within a range of 150Hz to 20kHz. For example, one or more sound generating devices 510 may be referred to as a side window speaker or a fourteenth speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0364] Reference Fig.29 , one or more sound generating devices 510 may be disposed at the rear window 540C, and may be configured to output sound based on vibration thereof, or to vibrate the rear window 540C indirectly or directly to output sound.

[0365] According to an embodiment of the present disclosure, the rear window 540C may include a first area corresponding to the rear direction of the first rear passenger seat RPS1, a second area corresponding to the rear direction of the second rear passenger seat RPS2, and a third area corresponding to the rear direction of the third rear passenger seat RPS3.

[0366] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be provided at each of the first to third regions of the rear window 540C. For example, one or more sound generating devices 510 may be provided at least one or more of the first to third regions of the rear window 540C. For example, one or more sound generating devices 510 may be provided at each of the first and second regions of the rear window 540C, or may be provided at each of the first to third regions of the rear window 540C.

[0367] According to an embodiment of the present disclosure, one or more sound generating devices 510 may be arranged at at least one or more of the first and second regions of the rear window 540C, or may be arranged at at least one or more of the first to third regions of the rear window 540C. For example, one or more sound generating devices 510 may be configured to output sounds within a range of 150Hz to 20kHz. For example, one or more sound generating devices 510 arranged at each of the first to third regions of the rear window 540C may have the same sound output characteristics or different sound output characteristics. For example, one or more sound generating devices 510 arranged at at least one or more of the first to third regions of the rear window 540C may have the same sound output characteristics or different sound output characteristics. For example, one or more sound generating devices 510 arranged at at least one or more of the first and second regions of the rear window 540C may be configured to output sounds within a range of 150Hz to 20kHz, or may be one or more of a woofer, a mid-woofer, and a subwoofer. For example, one or more sound generating devices 510 may be referred to as a rear window speaker or a fifteenth speaker, etc., but embodiments of the present disclosure are not limited thereto.

[0368] According to another embodiment of the present disclosure, one or more sound generating devices 510 may be provided at the roof window 540D and may be configured to output sound based on vibration thereof, or to vibrate the roof window 540D indirectly or directly to output sound.

[0369] The roof window according to an embodiment of the present disclosure may be arranged above the front seats DS and FPS. For example, one or more sound generating devices 510 may be arranged at the central area of ​​the roof window. For example, one or more sound generating devices 510 may be configured to output sounds within a range of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 may be referred to as a roof window speaker or a sixteenth speaker, etc., but the embodiments of the present disclosure are not limited thereto.

[0370] According to another embodiment of the present disclosure, the roof window may be arranged above the front seats DS and FPS, or may be arranged above the rear seats RPS1, RPS2 and RPS3. For example, the roof window may include a first area corresponding to the front seats DS and FPS and a second area corresponding to the rear seats RPS1, RPS2 and RPS3. In addition, the roof window may include a third area between the first area and the second area. For example, one or more sound generating devices 510 may be arranged at at least one or more of the first area and the second area of ​​the roof window, or may be arranged at at least one or more of the first area to the third area of ​​the roof window. For example, one or more sound generating devices 510 may be configured to output sounds within the range of 150Hz to 20kHz. For example, one or more sound generating devices 510 arranged at at least one or more of the first area to the third area of ​​the roof window may have the same sound output characteristics or different sound output characteristics.

[0371] Reference Fig.29 and Fig.30 The vehicle device according to the embodiment of the present disclosure may further include a woofer WS provided at least one or more of the instrument panel 530A, the door frame, and the trunk interior material 530J. However, in another embodiment, the woofer WS may be provided elsewhere.

[0372] The woofer WS according to an embodiment of the present disclosure may be one or more of a woofer, a mid-woofer, and a subwoofer. For example, the woofer WS may be referred to as a term such as a speaker that outputs sound within a range of 60 Hz to 150 Hz, but the embodiments of the present disclosure are not limited thereto.

[0373] Therefore, the woofer WS can output sounds in the range of 60 Hz to 150 Hz, thereby enhancing the low-pitched vocal range characteristics of the sounds output to the indoor space.

[0374] According to an embodiment of the present disclosure, the woofer WS may be disposed at at least one or more of the first and second regions of the instrument panel 530A. According to an embodiment of the present disclosure, the woofer WS may be disposed at each of the first to fourth door frames of the door interior material 530D, and may be exposed at the lower region of each of the first to fourth door interior materials 530D1 to 530D4 of the door interior material 530D. For example, the woofer WS may be disposed at at least one or more of the first to fourth door frames of the door interior material 530D, and may be exposed at the lower region of at least one or more of the first to fourth door interior materials 530D1 to 530D4 of the door interior material 530D. According to an embodiment of the present disclosure, the woofer WS may be disposed at at least one or more of the first and second regions of the trunk interior material 530J. For example, one or more sound generating devices 510 provided at the lower area of ​​each of the first to fourth door interior materials 530D1 to 530D4 may be replaced with a woofer WS. For example, one or more sound generating devices 510 provided at the lower area of ​​at least one or more of the first to fourth door interior materials 530D1 to 530D4 may be replaced with a woofer WS.

[0375] The vehicle device according to an embodiment of the present disclosure may further include a decoration member covering a portion of the interior material 530 exposed at the interior space, and one or more sound generating devices 510 disposed at the interior material 530. For example, the one or more sound generating devices 510 may be disposed at the decoration member and the interior material 530 to output sound. For example, at least one or more of the decoration member and the interior material 530 may output sound based on the vibration of one or more vibration generating devices (or vibration devices).

[0376] The decorative member may be configured to cover a portion of the door interior material 530D exposed to the interior space, but the embodiments of the present disclosure are not limited thereto. For example, the decorative member may be configured to cover a portion of one or more of the instrument panel 530A, the pillar interior material 530B, and the roof interior material 530C exposed to the interior space.

[0377] The decorative member according to the embodiment of the present disclosure may include a metal material or a non-metal material (or a composite non-metal material) having a material property suitable for generating sound based on vibration. For example, the metal material of the decorative member 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 embodiment of the present disclosure is not limited thereto. The non-metal material (or composite non-metal material) of the decorative member may include one or more of wood, plastic, glass, metal, cloth, fiber, rubber, paper, carbon and leather, but the embodiment of the present disclosure is not limited thereto. For example, the decorative member may include a metal material having a material property suitable for generating a sound of a high-pitched vocal cord, but the embodiment of the present disclosure is not limited thereto. For example, the high-pitched vocal cord may have a frequency in the range of 1kHz or higher or 3kHz or higher, but the embodiment of the present disclosure is not limited thereto.

[0378] One or more sound generating devices 510 may be provided between the decoration member and the inner material 530. For example, the one or more sound generating devices 510 may be referred to as a term such as a decoration speaker or a seventeenth speaker, but embodiments of the present disclosure are not limited thereto.

[0379] According to an embodiment of the present disclosure, one or more sound generating devices 510 may include the above-referenced Figures 1 to 28 One or more of the acoustic devices 100 described herein. One or more sound generating devices 510 may be disposed at the main interior material or interior material 530 and the trim member, and may be connected or coupled to the trim member.

[0380] One or more sound generating devices 510 according to an embodiment of the present disclosure may be configured to vibrate the decorative member indirectly or directly to output sound into the interior space of the vehicle device. For example, one or more sound generating devices 510 may be configured to output the sound of a high-pitched vocal range, but the embodiments of the present disclosure are not limited thereto.

[0381] Reference Fig.29 and Fig.30 , the vehicle device according to the embodiment of the present disclosure may further include one or more sound generating devices 510 disposed at the inner surface of the external material 520. For example, the one or more sound generating devices 510 may be disposed at the external material 520 to output sound. For example, the external material 520 may output sound based on the vibration of one or more vibration generating devices (or vibration devices).

[0382] The exterior material 520 according to an embodiment of the present disclosure may include at least one or more of a cover panel 520A, a front fender panel 520B, a door frame, a roof panel, a pillar panel, a trunk panel 520C, a front bumper, a rear bumper, a spoiler, a headlight, a taillight, a fog lamp, or a body floor (or bottom) 501. One or more sound generating devices may vibrate at least one of the cover panel 520A, the front fender panel 520B, the door frame, the roof panel, the pillar panel, the trunk panel 520C, the front bumper, the rear bumper, the spoiler, the headlight, the taillight, the fog lamp, or the body floor 501 from the outside or the inside.

[0383] One or more sound generating devices 510 may be provided at one or more of the cowl panel 520A, the front fender panel 520B, and the trunk panel 520C. Thus, sounds of one or more channels may be output.

[0384] One or more sound generating devices 510 according to an embodiment of the present disclosure may be connected or coupled to the inner side of the cover panel 520A, and may be configured to vibrate the cover panel 520A indirectly or directly to output sound to the external space of the vehicle device. For example, one or more sound generating devices 510 may be configured to be connected or coupled to one or more of the central portion and the peripheral portion of the inner side of the cover panel 520A.

[0385] According to an embodiment of the present disclosure, one or more sound generating devices 510 may include the above-referenced Figures 1 to 28 One or more of the acoustic devices 100 described herein. One or more sound generating devices 510 may be connected or coupled to the inner surface of the cover panel 520A. For example, one or more sound generating devices 510 may be configured to output sounds within a range of 150 Hz to 20 kHz. For example, one or more sound generating devices 510 may be referred to as a cover panel speaker or an eighteenth speaker, etc., but the embodiments of the present disclosure are not limited thereto.

[0386] One or more sound generating devices 510 according to an embodiment of the present disclosure may be connected or coupled to the inner surface of the front fender panel 520B, and may be configured to vibrate the front fender panel 520B indirectly or directly to output sound to the outdoor space of the vehicle device. For example, one or more sound generating devices 510 may be arranged to have a certain interval at the inner surface of the front fender panel 520B.

[0387] According to an embodiment of the present disclosure, one or more sound generating devices 510 may include the above-referenced Figures 1 to 28One or more of the acoustic devices 100 described herein. One or more sound generating devices 510 may be connected or coupled to the inner surface of the front fender panel 520B. For example, one or more sound generating devices 510 may be configured to output sounds in the range of about 150 Hz to about 20 kHz. For example, one or more sound generating devices 510 may be referred to as terms such as a fender panel speaker or a nineteenth speaker, but embodiments of the present disclosure are not limited thereto.

[0388] One or more sound generating devices 510 according to an embodiment of the present disclosure may be connected or coupled to the inner surface of the trunk panel 520C, and may be configured to vibrate the trunk panel 520C indirectly or directly to output sound to the outdoor space of the vehicle device. For example, one or more sound generating devices 510 may be configured to be connected or coupled to one or more of the central portion and the peripheral portion of the trunk panel 520C.

[0389] According to an embodiment of the present disclosure, one or more sound generating devices 510 may include the above-referenced Figures 1 to 28 One or more of the acoustic devices 100 described herein. One or more sound generating devices 510 may be connected or coupled to the inner surface of the luggage compartment panel 520C. For example, one or more sound generating devices 510 may be configured to output sounds in the range of about 150 Hz to about 20 kHz. For example, one or more sound generating devices 510 may be referred to as terms such as a luggage compartment panel speaker or a twentieth speaker, but embodiments of the present disclosure are not limited thereto.

[0390] According to another embodiment of the present disclosure, one or more sound generating devices 510 may be provided at one or more of the door inner panel or the door outer panel.

[0391] The vehicle equipment according to an embodiment of the present disclosure can output sound to one or more of the indoor space and the outdoor space (or the exterior space) through at least one or more of one or more sound generating devices 510 arranged at the interior material 530, one or more sound generating devices 510 arranged at the interior material 530 exposed to the interior space, one or more sound generating devices 510 arranged at the glass window, one or more sound generating devices 510 arranged at the decorative component, and one or more sound generating devices 510 arranged at the exterior material 520, and therefore, sound can be output through one or more of the exterior material 520 and the interior material 530 as a sound vibration plate, thereby outputting multi-channel surround sound.

[0392] Reference Fig.30, the vehicle equipment or exterior material 520 according to the embodiment of the present disclosure may further include a battery module 550 and a vehicle body floor 501 .

[0393] The battery module 550 may be disposed at the bottom frame of the vehicle body. For example, the battery module 550 may be disposed at the exterior material 520. For example, the battery module 550 may be disposed between the bottom frame of the vehicle body and the exterior material 520.

[0394] The vehicle body floor 501 may be configured to cover the battery module 550. For example, the battery module 550 may be disposed between the vehicle body bottom frame and the vehicle body floor 501. For example, the vehicle body floor 501 may be a vehicle body panel or a vehicle body frame, and embodiments of the present disclosure are not limited thereto.

[0395] One or more sound generating devices 510 may be disposed between the battery module 550 and the vehicle body floor 501 , and may be configured to output a sound or a virtual engine sound, but the present disclosure is not limited thereto.

[0396] Recently, environmentally friendly vehicle devices without noise, such as electric vehicles, have a problem that pedestrians cannot recognize when the vehicle device moves. Therefore, the vehicle device 500 according to an embodiment of the present disclosure may further include one or more virtual engine sound devices 511.

[0397] One or more virtual engine sound devices 511 may be devices for transmitting the location and / or driving information of the vehicle device to pedestrians. Thus, pedestrians may be reminded that the vehicle device is traveling and / or located near the pedestrians. For example, one or more virtual engine sound devices 511 may be a virtual engine sound system or a vehicle access information device, but the embodiments of the present disclosure are not limited thereto.

[0398] Reference Fig.29 and Fig.30 , one or more virtual engine sound devices 511 may be set at the center of the vehicle device, but the embodiments of the present disclosure are not limited thereto. For another example, one or more virtual engine sound devices 511 may be set at one or more of the front, rear, left, or right of the vehicle device. For example, one or more virtual engine sound devices 511 may include the above reference Figures 1 to 28 The acoustic device 100 described above is not described, and therefore, a repeated description thereof may be omitted. For example, the one or more virtual engine sound devices 511 may be configured to output sounds or virtual engine sounds within a range of 150 Hz to 20 kHz.

[0399] One or more virtual engine sound devices 511 according to an embodiment of the present disclosure may be disposed (or installed) between the battery module 550 and the vehicle body floor (or the underbody or the underbody frame) 501. For example, the one or more virtual engine sound devices 511 may be configured to be covered by the vehicle body floor 501. For example, a portion of the vehicle body floor 501 overlapping with the one or more virtual engine sound devices 511 may include one or more holes for outputting the sound (or virtual engine sound) output from the one or more virtual engine sound devices 511 in the direction of the earth's surface.

[0400] One or more virtual engine sound devices 511 according to another embodiment of the present disclosure may be provided at the vehicle body floor 501, or may be accommodated (or received) in the vehicle body floor (or the underbody or the underbody frame) 501. The vehicle body floor (or the underbody or the underbody frame) 501 may include an accommodation portion 501a for accommodating (or receiving) the one or more virtual engine sound devices 511. For example, the accommodation portion 501a of the vehicle body floor 501 may protrude from the vehicle body floor 501 toward the battery module 550 to include an accommodation space.

[0401] One or more virtual engine sound devices 511 may be accommodated (or received) in the accommodation portion 501a of the vehicle body floor 501 through a plurality of fastening members, and may be fixed (or mounted) to the vehicle body floor 501. For example, a plurality of fastening members may pass through the through hole 155h of each of the plurality of coupling portions 155 configured at the support member 150 or the acoustic device 100 configured with the one or more virtual engine sound devices 511, and may be fastened to the vehicle body floor 501, and thus, each of the plurality of coupling portions 155 may be coupled to the vehicle body floor 501. Thus, the one or more virtual engine sound devices 511 may be fixed (or mounted) to the vehicle body floor 501, and may output a sound (or a virtual engine sound) in the direction of the earth's surface.

[0402] One or more virtual engine sound devices 511 may be provided (or configured) at the center of the vehicle device 500. For example, one or more virtual engine sound devices 511 may be provided (or configured) at the center of the vehicle body floor (or vehicle body bottom frame) 501.

[0403] However, in another embodiment, one or more virtual engine sound devices 511 may be provided at different locations of the vehicle device 100. For example, one or more virtual engine sound devices 511 may be provided (or configured) at an edge portion of the vehicle body floor (or vehicle body bottom frame) 501.

[0404] One or more virtual engine sound devices 511 may include a vibration device 130 configured with a piezoelectric device, and therefore, may be lightweight and may have a thin thickness, and may output a sound (or a virtual engine sound) having a wide directivity angle or a non-directivity angle based on the non-directional characteristics of the vibration device 130 configured with a piezoelectric device. Compared to a sound generated based on vibration of an actuator including a magnet and a coil, one or more virtual engine sound devices 511 may have a sound with a wide directivity angle. For example, Fig.31 As shown, in the case where one or more virtual engine sound devices 511 are set (or configured) at the center of the vehicle device 500 to output the virtual engine sound, the one or more virtual engine sound devices 511 can output a uniform virtual engine sound in each of the forward direction FD, the rearward direction RD, the left direction LSD, and the right direction RSD relative to the center of the vehicle device 500. The acoustic device according to an embodiment of the present disclosure can output a sound or a virtual engine sound having a sound pressure level of 60 dB or more in a tone band of 300 Hz or more.

[0405] Fig.32 Sound output characteristics of an acoustic device according to an embodiment of the present disclosure are shown. Fig.32 According to the above reference Figures 1 to 3 The sound output characteristics of the acoustic device of the embodiment of the present disclosure are described. Fig.32 , the horizontal axis represents frequency in Hertz (Hz), and the vertical axis represents sound pressure level (SPL) in decibels (dB).

[0406] The sound output characteristics can be measured by a sound measuring device. The sound analysis device can be configured to include a sound card that can send sound to or receive sound from a control personal computer (PC), an amplifier that can amplify the signal generated from the sound card and pass the amplified signal to the vibration device, and a microphone that can collect the sound generated by the vibration member based on the drive of the acoustic device. For example, the microphone is arranged at the center of the acoustic device, and the separation distance between the vibration member and the microphone can be 50cm. The sound can be measured in a state where the microphone is vertical to the acoustic device. The sound collected by the microphone can be input to the control PC through the sound card, and the control program can check the input sound to analyze the sound output characteristics of the acoustic device. For example, the frequency response characteristics of the frequency range of 100Hz to 20kHz can be measured by a pulse program.

[0407] Reference Fig.32, the average sound pressure level of the sound has been measured to be 77dB, and the sound pressure level in the vocal cords within the range of 300Hz or higher has been measured to be 60dB or higher. For example, the sound pressure level in the vocal cords within the range of 300Hz or higher has been measured to be 70dB or higher.

[0408] As in Fig.32 It can be seen that the acoustic device according to the embodiment of the present disclosure can enhance the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal band, and can output sounds or virtual engine sounds with a sound pressure level of 60dB or higher in the vocal band of 300Hz or higher.

[0409] An acoustic device and a vehicle device including the acoustic device according to one or more embodiments of the present disclosure will be described below.

[0410] An acoustic device according to one or more embodiments of the present disclosure may include: a vibration member; a supporting member at a first surface of the vibration member; a vibration device configured to vibrate the vibration member; and a drive circuit unit disposed at an internal space between the vibration member and the supporting member and configured to be electrically connected to the vibration device.

[0411] According to one or more embodiments of the present disclosure, a vibration device may be provided at the inner space, and may be connected to the first surface of the vibration member.

[0412] According to one or more embodiments of the present disclosure, the driving circuit part may include a printed circuit board disposed between the vibration device and the support member. The printed circuit board may be spaced apart from the vibration device.

[0413] According to one or more embodiments of the present disclosure, the acoustic device may further include a fixing member disposed between the support member and the printed circuit board.

[0414] According to one or more embodiments of the present disclosure, the fixing member may include one or more adhesive members including a material having adhesive force and being elastic.

[0415] According to one or more embodiments of the present disclosure, the acoustic device may further include one or more holes configured at the printed circuit board.

[0416] According to one or more embodiments of the present disclosure, the acoustic device may further include one or more holes configured at the support member to connect the internal space to the external space.

[0417] According to one or more embodiments of the present disclosure, the acoustic device may further include a water blocking member configured to cover the one or more holes.

[0418] According to one or more embodiments of the present disclosure, the acoustic device may further include a coupling member between the vibration member and the support member.

[0419] According to one or more embodiments of the present disclosure, the coupling member may include a waterproof structure or a waterproof member.

[0420] According to one or more embodiments of the present disclosure, the acoustic device may further include a plurality of coupling portions protruding from each of the corner portions of the support member. Each of the plurality of coupling portions may include a through hole configured to receive a portion of the fastener.

[0421] According to one or more embodiments of the present disclosure, the acoustic device may further include a pad member provided at each of the plurality of coupling portions. Each pad member may include a hollow portion overlapping with a through hole of the corresponding coupling portion.

[0422] According to one or more embodiments of the present disclosure, the pad component may include a ductile material.

[0423] According to one or more embodiments of the present disclosure, a pad member may be provided integrally with each of the plurality of coupling portions.

[0424] According to one or more embodiments of the present disclosure, the support member may include: a first support portion, which is arranged in parallel with the vibration member; and a second support portion, which is connected to the first support portion and to the first surface of the vibration member and is configured to surround the vibration device.

[0425] According to one or more embodiments of the present disclosure, the driving circuit unit may include: a printed circuit board disposed between the vibration device and the support member; and a connection connector electrically connected to the printed circuit board. A portion of the connection connector may be disposed through a surface of the support member and may be accommodated in the internal space.

[0426] According to one or more embodiments of the present disclosure, the support member may include: a first support portion, the first support portion is arranged in parallel with the vibration member; a second support portion, the second support portion is connected to the first support portion and to the first surface of the vibration member, and is configured to surround the vibration device; and an inclined portion, the inclined portion is between the first support portion and the second support portion. A portion of the connection connector may be arranged to pass through the inclined portion and may be accommodated in the internal space.

[0427] According to one or more embodiments of the present disclosure, the acoustic device may further include one or more holes provided at one or more of the first supporting portion and the inclined portion.

[0428] According to one or more embodiments of the present disclosure, the acoustic device may further include a water blocking member configured to cover the one or more holes.

[0429] According to one or more embodiments of the present disclosure, the acoustic device may further include one or more holes configured at the printed circuit board.

[0430] According to one or more embodiments of the present disclosure, the driving circuit part and the vibration device may be disposed in parallel at the internal space.

[0431] According to one or more embodiments of the present disclosure, the driving circuit part may include a printed circuit board disposed between the vibration device and the support member. The printed circuit board may be spaced apart from the vibration device.

[0432] According to one or more embodiments of the present disclosure, the acoustic device may further include a fixing member disposed between the support member and the printed circuit board or between the vibration member and the printed circuit board.

[0433] According to one or more embodiments of the present disclosure, a vibration device may include: a vibration part including a piezoelectric material; and a cover member covering at least one or more of a first surface of the vibration part and a second surface of the vibration part opposite to the first surface of the vibration part.

[0434] According to one or more embodiments of the present disclosure, the vibration device may further include a signal supply member electrically connected to the vibration part. A portion of the signal supply member may be accommodated between the cover member and the vibration part.

[0435] According to one or more embodiments of the present disclosure, the vibration device may include: a first vibration generating part; a second vibration generating part stacked on the first vibration generating part; and an intermediate member between the first vibration generating part and the second vibration generating part. One of the first vibration generating part and the second vibration generating part may be connected to the vibration member.

[0436] According to one or more embodiments of the present disclosure, each of the first vibration generating part and the second vibration generating part may include: a vibration part, the vibration part including a piezoelectric material; and a cover member, the cover member covering at least one or more of a first surface of the vibration part and a second surface of the vibration part opposite to the first surface of the vibration part.

[0437] According to one or more embodiments of the present disclosure, the acoustic device may further include one or more mass members disposed at a second surface of the vibration member opposite to the first surface of the vibration member.

[0438] According to one or more embodiments of the present disclosure, the acoustic device may further include a second vibration device provided at a second surface of the vibration member opposite to the first surface of the vibration member. The second vibration device may include a vibration part.

[0439] According to one or more embodiments of the present disclosure, the second vibration device may overlap with the vibration device, and may be configured to be displaced in the same direction as the vibration device.

[0440] According to one or more embodiments of the present disclosure, the vibration member may include one or more materials including metal, plastic, fiber reinforced plastic, carbon, and wood.

[0441] The vehicle device according to one or more embodiments of the present disclosure may include: an external material; an internal material covering the external material; and one or more sound generating devices arranged at one or more of the external material, the internal material, and between the external material and the internal material and configured to output sound, and the one or more sound generating devices may include an acoustic device. The acoustic device according to one or more embodiments of the present disclosure may include: a vibration member; a supporting member, the supporting member is at a first surface of the vibration member; a vibration device, the vibration device is configured to vibrate the vibration member; and a drive circuit unit, the drive circuit unit is arranged at the internal space between the vibration member and the supporting member, and is configured to be electrically connected to the vibration device.

[0442] According to one or more embodiments of the present disclosure, the interior material may include at least one or more of the following: 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; or a trunk interior material.

[0443] According to one or more embodiments of the present disclosure, the exterior material may include at least one or more of the following: a hood panel; a front fender panel; a door frame; a roof panel; a pillar panel; a trunk panel; a front bumper; a rear bumper; a spoiler; a headlight; a taillight; a fog light; or a body floor.

[0444] According to one or more embodiments of the present disclosure, the external material may include: a battery module disposed at the external material; and a vehicle body floor covering the battery module. One or more sound generating devices may be disposed between the battery module and the vehicle body floor. One or more sound generating devices may output the sound or the virtual engine sound.

[0445] A vehicle device according to one or more embodiments of the present disclosure may include: a vehicle body bottom frame; and one or more virtual engine sound devices mounted at the vehicle body bottom frame. One or more virtual engine sound devices may include an acoustic device. An acoustic device according to one or more embodiments of the present disclosure may include: a vibration member; a support member, the support member is at a first surface of the vibration member; a vibration device, the vibration device is configured to vibrate the vibration member; and a drive circuit unit, the drive circuit unit is disposed at an internal space between the vibration member and the support member, and is configured to be electrically connected to the vibration device.

[0446] According to one or more embodiments of the present disclosure, an underbody frame may include a receiving portion configured to receive one or more virtual engine sound devices.

[0447] According to one or more embodiments of the present disclosure, one or more virtual engine sound devices may be provided at the center of the underbody frame.

[0448] A vehicle device according to one or more embodiments of the present disclosure may include: an external material; an internal material covering the external material; and one or more acoustic devices as described above that are configured at one or more of the external material, the internal material, and between the external material and the internal material to output sound.

[0449] According to one or more embodiments of the present disclosure, the external material may include: a battery module disposed at the external material; and a vehicle body floor covering the battery module. One or more acoustic devices may be disposed between the battery module and the bottom of the vehicle body. One or more acoustic devices may output sound or virtual engine sound.

[0450] According to the acoustic device of the embodiment of the present disclosure, it can be applied to or included in the sound arranged at the device or display device. According to the device or display device of the embodiment of the present disclosure, it can be applied to or included in mobile device, video phone, smart watch, watch phone, wearable device, foldable device, rollable device, bendable device, flexible device, bending device, sliding device, variable device, electronic notepad, e-book, portable multimedia player (PMP), personal digital assistant (PDA), MP3 player, mobile medical device, desktop personal computer (PC), laptop PC, netbook computer, workstation, navigation device, car navigation device, car display device, car equipment, theater equipment, theater display device, TV, wallpaper display device, signage device, game console, notebook computer, monitor, camera, video camera and household appliances etc. In addition, according to the vibration device of one or more embodiments of the present disclosure, it can be applied to or included in organic light emitting lighting device or inorganic light emitting lighting device. When the acoustic device is applied to or included in lighting device, lighting device can serve as lighting and speaker. In addition, when the acoustic device according to one or more embodiments of the present disclosure is applied to or included in a mobile device or the like, the acoustic device may be one or more of a speaker, a receiver, and a haptic device, but the embodiments of the present disclosure are not limited thereto.

[0451] It is obvious to those skilled in the art that various modifications and variations can be made in the present disclosure without departing from the scope of the present disclosure. Therefore, the present disclosure is intended to cover modifications and variations of the present disclosure within the scope of the appended claims and their equivalents.

Claims

1. An acoustic device, comprising: Vibrating components; a support member at a first surface of the vibration member; a vibration device configured to vibrate the vibration member; as well as A drive circuit section is provided at an inner space between the vibration member and the support member and is configured to be electrically connected to the vibration device.

2. The acoustic device according to claim 1, wherein The vibration device is disposed at the inner space, and is connected to the first surface of the vibration member.

3. The acoustic device according to claim 2, in, The driving circuit section includes a printed circuit board disposed between the vibration device and the support member, and Wherein, the printed circuit board is spaced apart from the vibration device.

4. The acoustic device according to claim 3, further comprising: A fixing member is arranged between the supporting member and the printed circuit board.

5. The acoustic device according to claim 4, wherein: The fixing member includes one or more adhesive members including a material having adhesive force and being elastic.

6. The acoustic device according to claim 3, further comprising: One or more holes are configured at the printed circuit board.

7. The acoustic device according to claim 1, further comprising: One or more holes are configured at the support member to connect the interior space to an exterior space.

8. The acoustic device according to claim 7, further comprising: A water blocking member is configured to cover the one or more holes.

9. The acoustic device according to claim 1, further comprising: A coupling member between the vibration member and the support member.

10. The acoustic device according to claim 9, wherein The coupling member includes a waterproof structure or a waterproof member.

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