Device for outputting sound and vehicle device comprising the device

Abstract

The present disclosure discloses a device for outputting sound and a vehicle device including the same. A device includes a vibrating member, a housing at a rear surface of the vibrating member, a connecting member between the vibrating member and the housing, and a vibrating device configured to vibrate the vibrating member, the vibrating member including at least one flat portion and at least one curved portion adjacent to the at least one flat portion.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit and priority of Korean Patent Application No. 10-2021-0194808, filed on December 31, 2021, which is incorporated herein by reference for all purposes, as if fully set forth herein. Technical Field

[0003] This disclosure relates to equipment and vehicle equipment that includes such equipment. Background Technology

[0004] The equipment includes individual speakers or sound devices that provide sound. When speakers are placed in the equipment, they occupy space, which limits the design and spatial arrangement of the equipment.

[0005] A loudspeaker used in a device can be, for example, an actuator comprising a magnet and a coil. However, when an actuator is applied to a device, the device's thickness is increased. Therefore, piezoelectric elements for achieving thinner thicknesses have attracted considerable attention.

[0006] Because piezoelectric elements are fragile, they are easily damaged by external impacts, resulting in low reliability in sound reproduction. Furthermore, when loudspeakers using piezoelectric elements are applied to flexible devices, their fragility can cause damage.

[0007] The descriptions provided in the Background section should not be construed as prior art simply because they are mentioned or related to in this section. The Background section may include information describing one or more aspects of the subject matter, and the descriptions in this section do not limit the invention. Summary of the Invention

[0008] The inventors of this disclosure have recognized the aforementioned problems and shortcomings of related technologies, and have conducted extensive research and experimentation in order to realize a vibration device that can improve sound quality and sound pressure level characteristics. Through extensive research and experimentation, the inventors have thus invented a new device that can improve sound quality and a vehicle device including the device.

[0009] Therefore, embodiments of this disclosure are intended to provide an apparatus and a vehicle apparatus including the apparatus, which substantially avoid one or more problems arising from the limitations and disadvantages of related technologies.

[0010] One aspect of this disclosure is to provide devices and vehicle equipment including such devices, which can cause a vibrating member or vibrating object to vibrate to produce vibration or sound and can improve sound characteristics and / or sound pressure level characteristics.

[0011] Another aspect of this disclosure is to provide a vibration device with a simplified structure, an apparatus including the vibration device, and a vehicle apparatus including the apparatus.

[0012] Other features, advantages, and aspects of this disclosure will be set forth in the description which follows, and in part will be obvious from this disclosure, or may be learned by practicing the inventive concept provided herein. These other features, advantages, and aspects of this disclosure may be realized and achieved by the description provided in this disclosure, or by description which may be derived therefrom, and by the claims and drawings of this disclosure.

[0013] To achieve these and other advantages and aspects of this disclosure, as realized and broadly described herein, an apparatus may include: a vibrating member; a housing at the rear surface of the vibrating member; a connecting member between the vibrating member and the housing; and a vibrating device configured to vibrate the vibrating member. The vibrating member may include at least one flat portion and at least one zigzag portion adjacent to the at least flat portion.

[0014] In another aspect, a device may include: a vibrating member; a housing at the rear surface of the vibrating member; a connecting member between the vibrating member and the housing; and a vibrating device configured to vibrate the vibrating member. The vibrating member includes at least one flat portion and at least one concave curved portion or at least one convex curved portion disposed adjacent to the at least flat portion. The vibrating member may include first to fourth regions that do not overlap with each other. A second region may include at least one flat portion, the first and fourth regions may include at least one convex curved portion, and a third region may include at least one concave curved portion.

[0015] In another aspect, a device may include: a vibrating member; a housing at the rear surface of the vibrating member; a connecting member between the vibrating member and the housing; and a vibrating device configured to vibrate the vibrating member. The vibrating member may include at least one flat portion and at least one concave curved portion or at least one convex curved portion disposed adjacent to the at least one flat portion. The vibrating member may include first to fourth regions that do not overlap with each other. A second region may include at least one flat portion, a third region may include at least one convex curved portion, and the first and fourth regions may include at least one concave curved portion.

[0016] In another aspect, a vehicle device may include: an outer material; an inner material covering the outer material; and one or more vibration generating devices at one or more locations in the outer material, the inner material, and the area between the outer material and the inner material. The one or more vibration generating devices may include devices according to embodiments of this disclosure, and one or more of the inner and outer materials output sound based on vibrations from the one or more vibration generating devices.

[0017] The apparatus according to embodiments of the present disclosure may include a vibration device that vibrates a display panel or a vibrating member and can generate sound such that the sound travels toward the front surface of the display panel or the vibrating member.

[0018] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon review of the appended drawings and detailed description. It is intended that all such additional systems, methods, features, and advantages be included in this description, within the scope of this disclosure, and protected by the appended claims. Nothing in this section should be construed as limiting these claims. Further aspects and advantages will be discussed below in conjunction with embodiments of this disclosure.

[0019] It should be understood that the above and following descriptions of this disclosure are exemplary and explanatory, and are intended to further explain the claimed disclosure. Attached Figure Description

[0020] The accompanying drawings are included to provide a further understanding of this disclosure and are incorporated into and constitute a part of this disclosure. The drawings illustrate various aspects and implementations of this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0021] Figure 1 This is a perspective view showing an embodiment of the device according to the present disclosure.

[0022] Figure 2 It is along Figure 1 The cross-sectional view taken by line A-A' is shown in the figure.

[0023] Figure 3A The structure of a demultiplexer according to an embodiment of this disclosure is shown.

[0024] Figures 3B to 3D The sound reproduction characteristics of a vibration device based on a demultiplexer are shown.

[0025] Figure 4 A vibration device according to an embodiment of the present disclosure is shown.

[0026] Figure 5 It is along Figure 4 The cross-sectional view taken by line B-B' is shown in the figure.

[0027] Figure 6 It is shown Figure 5 A perspective view of the vibrating portion shown in the image.

[0028] Figures 7A to 7D This is a perspective view showing a vibrating portion of a vibration device according to another embodiment of the present disclosure, which is an embodiment of the vibration device according to the present disclosure.

[0029] Figure 8 A vibration device according to another embodiment of the present disclosure is shown.

[0030] Figure 9 It is along Figure 8 The cross-sectional view taken by the C-C' line is shown in the figure.

[0031] Figure 10 A vibration device according to another embodiment of the present disclosure is shown.

[0032] Figure 11 This is a perspective view showing another embodiment of the device according to this disclosure.

[0033] Figure 12 It is along Figure 11 The cross-sectional view taken by line D-D' is shown in the figure.

[0034] Figure 13 A variable curvature structure of a vibrating member according to an embodiment of the present disclosure is shown.

[0035] Figure 14 It is along Figure 13 The cross-sectional view taken by the E-E' line is shown in the figure.

[0036] Figure 15A and Figure 15B It is an application Figure 13 A cross-sectional view of a device with a variable curvature layer.

[0037] Figure 16A and Figure 16B It is a cross-sectional view of a device that uses a curvature change mechanism.

[0038] Figures 17 to 19 The frequency sound pressure level output characteristics of the vibrating member with respect to the shape of the flat portion, the concave curved portion, and the convex curved portion are shown.

[0039] Figure 20 It is shown in the form of a bar chart Figure 19 The measurement results.

[0040] Figure 21A vehicle device according to an embodiment of the present disclosure is shown.

[0041] Figure 22 This is a cross-sectional view showing a vehicle device according to an embodiment of the present disclosure.

[0042] Figure 23 The setting is shown Figure 21 and Figure 22 Vibration generating devices near the driver's seat and passenger seats of the vehicle equipment.

[0043] Figure 24 The setting is shown Figure 21 and Figure 22 Vibration generating devices at the doors and windows of vehicle equipment.

[0044] Figure 25 The setting is shown Figure 21 and Figure 22 Vibration generating equipment located on the roof panel of the vehicle equipment.

[0045] Figure 26 The setting is shown Figure 21 and Figure 22 Vibration generating devices for the roof panel, windows, and seats of vehicles.

[0046] Throughout the accompanying drawings and detailed embodiments, unless otherwise stated, the same reference numerals shall be understood to refer to the same elements, features, and structures. For clarity, illustration, and convenience, the size, length, and thickness of layers, regions, and elements, and their descriptions, may be exaggerated. Detailed Implementation

[0047] Reference will now be made in detail to embodiments of this disclosure, examples of which are illustrated in the accompanying drawings. In the following description, detailed descriptions of well-known functions or configurations relevant to this document will be omitted where such descriptions might unnecessarily obscure aspects of this disclosure. The described process steps and / or operations are exemplary; however, the order of steps and / or operations is not limited to the order set forth herein and may be varied, except that the steps and / or operations must occur in a specific order.

[0048] Unless otherwise stated, the same reference numerals may refer to the same elements throughout the text, even if they are shown in different figures. In one or more aspects, unless otherwise stated, the same elements (or elements with the same name) in different figures may have the same or substantially the same function and characteristics. The names of the various elements used in the following description are chosen solely for convenience and may therefore differ from the names used in the actual product.

[0049] The advantages and features of this disclosure and its implementation methods are illustrated by means of embodiments described with reference to the accompanying drawings. However, this disclosure may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make this disclosure comprehensive and complete, and to fully convey the scope of this disclosure to those skilled in the art. Furthermore, this disclosure is defined only by the claims and their equivalents.

[0050] The shapes, dimensions, areas, ratios, angles, numbers, etc. disclosed in the accompanying drawings for describing embodiments of this disclosure are merely examples, and therefore this disclosure is not limited to the details shown.

[0051] When terms such as “comprising,” “having,” “including,” “containing,” “constituting,” “composed of,” “formed from,” etc., are used, one or more additional elements may be added unless terms such as “only” are used. The terminology used in this disclosure is for the purpose of describing particular implementations only and is not intended to limit the scope of this disclosure. The terminology used herein is for the purpose of describing exemplary implementations only and is not intended to limit the scope of this disclosure. Unless the context clearly indicates otherwise, singular terms may include plural forms. The word “exemplary” is used to mean used as an example or illustration. An implementation is an exemplary implementation. An aspect is an exemplary aspect. Any implementation described herein as an “example” is not necessarily to be construed as preferred or advantageous over other implementations.

[0052] In one or more aspects, when interpreting a component, although no explicit description of such an error or tolerance range is provided, the component, feature, or corresponding information (e.g., level, range, size, dimension, etc.) is interpreted as including such an error or tolerance range. The error or tolerance range may be caused by various factors (e.g., process factors, internal or external influences, noise, etc.). Furthermore, the term "may" encompasses all the meanings of the term "can."

[0053] When describing positional relationships, for example, when using terms such as "above," "on top of," "below," "over," "below," "near," "close to," "adjacent to," "adjoining," or "next to" to describe the positional relationship between two parts, one or more other parts may be located between the two parts, unless more restrictive terms such as "closely adjacent," "directly," or "tightly" are used. For example, when a structure is described as being positioned "above," "on top of," "below," "above," "below," "near," "close to," "adjacent to," "adjoining to," or "next to" another structure, this description should be interpreted to include situations where the structures are in contact with each other and where one or more additional structures are situated between them. Furthermore, the terms "front," "back," "behind," "left," "right," "top," "bottom," "down," "up," "upper part," "lower part," "upper," "lower," "column," "row," "vertical," and "horizontal," etc., refer to any frame of reference.

[0054] When describing temporal relationships, such as when time sequence is described as “after,” “following,” “next,” “before,” “in front of,” “prior to,” etc., non-sequential or non-continuous cases may be included, unless more restrictive terms such as “immediately after,” “immediately,” or “directly” are used.

[0055] It should be understood that although the terms "first," "second," etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be a second element, and similarly, a second element may be a first element. Furthermore, without departing from the scope of this disclosure, the first element and the second element, etc., may be named arbitrarily according to the convenience of those skilled in the art. The terms "first" and "second," etc., may be used to distinguish components from each other, but the function or structure of a component is not limited by the serial number preceding the component or the component name.

[0056] In describing elements of this disclosure, terms such as “first,” “second,” “A,” “B,” “(a),” and “(b)” may be used. These terms are intended to distinguish corresponding elements from other elements, and they shall not be used to define the nature, basis, order, or number of corresponding elements.

[0057] The description of an element or layer being “connected,” “coupled,” or “adhered” to other elements or layers means that the element or layer may be directly connected, coupled, or adhered to other elements or layers, or indirectly connected, coupled, or adhered to other elements or layers, with one or more intermediate elements or layers disposed or inserted between the elements or layers, unless otherwise specified.

[0058] For expressions such as "contact" or "overlap" between an element or layer and another element or layer, the element or layer may not only directly contact or overlap with another element or layer, but also indirectly contact or overlap with another element or layer, with one or more intermediate elements or layers disposed or inserted between these elements or layers, unless otherwise specified.

[0059] The term "at least one" should be understood to include any of the associated enumerated items and all combinations of one or more of the associated enumerated items. For example, "at least one of the first, second, and third items" means a combination of two or more items proposed from the first, second, and third items, as well as only one of the first, second, or third items.

[0060] The expressions "first element," "second element," and " / or" "third element" should be understood as one of the first, second, and third elements, or any or all combinations of the first, second, and third elements. As an example, A, B, and / or C can refer to only A; only B; only C; any or some combinations of A, B, and C; or all of A, B, and C. Furthermore, the expression "element A / element B" can be understood as element A and / or element B.

[0061] In one or more aspects, unless otherwise stated, for convenience, the terms "between" and "among" may be used interchangeably. For example, the expression "between multiple components" can be understood as "among multiple components." In another example, the expression "among multiple components" can be understood as "between multiple components." In one or more examples, the number of components may be two. In one or more examples, the number of components may be more than two.

[0062] In one or more aspects, unless otherwise stated, for convenience, the phrases "each other" and "one another" may be used interchangeably. For example, the expression "each other is different" can be understood as "one another is different." In another example, the expression "one another is different" can be understood as "each other is different." In one or more examples, the number of elements involved in the foregoing expression may be two. In one or more examples, the number of elements involved in the foregoing expression may be more than two.

[0063] Features of the various embodiments of this disclosure may be partially or wholly coupled or combined with each other, and may interoperate, link, or drive each other in various ways. Embodiments of this disclosure may be performed independently of each other, or may be performed together in an interdependent or related relationship. In one or more aspects, components of each device according to the various embodiments of this disclosure are operatively coupled and configured.

[0064] Unless otherwise specified, all terms used herein (including technical and scientific terms) shall have the same meaning as commonly understood by one of ordinary skill in the art to which the exemplary embodiments pertain. It should also be understood that terms such as those defined in common dictionaries shall be interpreted as having the same meaning as they have in the context of the relevant art, and shall not be interpreted in an idealized or overly formal sense unless expressly defined herein.

[0065] In the following, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Furthermore, for ease of description, the scale, size, dimensions, and thickness of each element shown in the drawings differ from their actual scale, size, dimensions, and thickness; therefore, embodiments of the present disclosure are not limited to the scale, size, dimensions, and thickness shown in the drawings.

[0066] Figure 1 This is a perspective view showing an embodiment of the device according to the present disclosure. Figure 2 It is along Figure 1 The cross-sectional view taken by line A-A' shown in the figure.

[0067] Reference Figure 1 and Figure 2 According to embodiments of the present disclosure, the device 10 may include a vibration member 110 and a vibration device 130.

[0068] The vibrating component 110 can output sound based on the vibration of the vibrating device 130. Therefore, the vibrating component 110 can be referred to as a vibrating object, a vibrating plate, a vibrating panel, a sound plate, a sound output component, or a sound output panel, etc., but the embodiments of this disclosure are not limited thereto.

[0069] The vibrating member 110 can be configured to be transparent, translucent, or opaque. The vibrating member 110 according to embodiments of this disclosure may include metallic and / or non-metallic materials (or composite non-metallic materials) having material properties suitable for outputting sound based on vibration. The metallic material of the vibrating member 110 according to embodiments of this disclosure may include any one or more of the following materials: stainless steel, aluminum (Al), aluminum alloys, magnesium (Mg), magnesium alloys, and magnesium-lithium (Mg-Li) alloys, but embodiments of this disclosure are not limited thereto. The non-metallic material (or composite non-metallic material) of the vibrating member 110 may include one or more of the following materials: glass, plastic, fiber, leather, wood, cloth, rubber, carbon, mirror, and paper, but embodiments of this disclosure are not limited thereto.

[0070] The vibrating member 110 according to embodiments of this disclosure can realize a sign panel, such as a simulated sign like an advertising sign, poster, or bulletin board. For example, when the vibrating member 110 realizes a sign panel, the simulated sign may include sign content such as sentences, pictures, and logos. The sign content can be placed on the vibrating member 110 to make the sign content visible. For example, the sign content can be directly attached to one or more of a first surface (or front surface) 110a and a second surface (or rear surface) 110b that is different from the first surface 110a (or opposite to the first surface 110a). For example, the sign content can be printed on a medium such as paper, and the medium on which the sign content is printed can be directly attached to one or more of the first surface 110a and the second surface 110b of the vibrating member 110. For example, when the sign content is attached to the second surface 110b of the vibrating member 110, the vibrating member 110 can be configured as a transparent material.

[0071] The vibration member 110 according to embodiments of this disclosure may include a first region, a second region adjacent to the first region, and a third region adjacent to the second region. The first region to the third region may have different bending states.

[0072] The vibration member 110 according to embodiments of the present disclosure may include at least one flat portion and at least one zigzag portion.

[0073] The flat portion of the vibrating member 110 may include the portion of the vibrating member 110 that is implemented as flat, and at least one zigzag portion may include at least a portion of the vibrating member 110 that is zigzag in concave and convex shapes. For example, at least one zigzag portion may include one or more of at least one concave bend and at least one convex bend. For example, at least one zigzag portion may be referred to as an uneven portion, a bend, a textured portion, or a folded portion.

[0074] The flat portion 110a1 can be disposed in the left region LA (or first region) of the device 10, the concave curved portion 110a2 can be disposed in the central region CA (or second region) of the device 10, and the convex curved portion 110a3 can be disposed in the right region RA (or third region) of the device 10. For example, the flat portion 110a1 can be disposed in the left region LA, the convex curved portion 110a3 can be disposed in the central region CA, and the concave curved portion 110a2 can be disposed in the right region RA. The combination of the flat portion and the curved portion of the vibration member 110 according to the embodiments of the present disclosure is not limited to this, and the arrangement relationship between the flat portion 110a1, the concave curved portion 110a2, and the convex curved portion 110a3 can be combined in various ways.

[0075] For example, the flat portion 110a1 can be configured in the left region LA and the central region CA of the device 10, and the concave curved portion 110a2 or the convex curved portion 110a3 of the curved portion can be configured in the right region RA. As described above, when two adjacent regions are implemented as flat portions or have the same bending state or slope of the vibrating member 110, the device 10 according to the embodiments of this disclosure can be configured as a dual-channel or multi-channel device having two vibration characteristics or two sound generation characteristics. For example, the device 10 can be configured as a three-channel or four-channel device.

[0076] exist Figure 2 In device 10, the left region LA and the center region CA can be implemented as flat portions, and the right region RA can be configured to include a concave curved portion 110a2 or a convex curved portion 110a3. In such a configuration, the device can include a flat portion and a curved portion and can have two sound characteristics, and therefore can be referred to as a dual-channel sound reproduction device.

[0077] The vibrating member 110 may further include a first inflection point line IL1 between the flat portion 110a1 and the concave curved portion 110a2, and a second inflection point line IL2 between the concave curved portion 110a2 and the convex curved portion 110a3. The first inflection point line IL1 and the second inflection point line IL2 may be located at the bending state of the vibrating member 110 or at the location where the slope of the vibrating member 110 changes.

[0078] The vibration member 110 according to the embodiments of the present disclosure may include a first surface 110a and a second surface 110b, and the first surface 110a and the second surface 110b may include a planar structure or a non-planar structure.

[0079] The vibration member 110 according to embodiments of this disclosure can be configured to have a plurality of natural vibration frequencies (or inherent frequencies). The vibration member 110 may include a non-planar structure and therefore may have a plurality of natural vibration frequencies. The vibration member 110 may have a plurality of natural vibration frequencies that are different for each region (or area). For example, the vibration member 110 may have a plurality of natural vibration frequencies that are different based on the thickness of each region.

[0080] The vibration device 130 can be configured to vibrate (or displace or drive) autonomously based on an electrical signal (or voice signal) applied thereto, or it can be configured to vibrate (or displace or drive) the vibrating member (or vibrating plate or vibrating object) 110. For example, the vibration device 130 can be referred to as a vibrating structure, vibrator, vibration generating device, vibration generator, sound generator, sound device, sound generating device, or sound generator, etc., but the embodiments of this disclosure are not limited thereto.

[0081] The vibration device 130 according to embodiments of this disclosure may include a piezoelectric material (or electroactive material) having piezoelectric properties. The vibration device 130 may vibrate (or displace or drive) the vibration member 110 based on the vibration (or displacement or drive) of the piezoelectric material generated by an electrical signal (or voice signal) applied thereto. For example, the vibration device 130 may vibrate (or displace or drive) by alternating and repeating contraction and expansion through the piezoelectric effect (or piezoelectric properties). For example, the vibration device 130 may vibrate (or displace or drive) in the vertical direction (or thickness direction) Z by alternating and repeating contraction and expansion through the inverse piezoelectric effect.

[0082] The vibration device 130 according to embodiments of this disclosure may include one or more vibration devices 131 of the piezoelectric type.

[0083] One or more vibration devices 131 according to embodiments of the present disclosure may be configured to be flexible. For example, one or more vibration devices 131 may be configured to bend into a non-planar shape including a curved surface. For example, one or more vibration devices 131 according to embodiments of the present disclosure may be referred to as a flexible vibration structure, flexible vibrator, flexible vibration generating device, flexible vibration generator, flexible sound generator, flexible sound device, flexible sound generating device, flexible sound generator, flexible actuator, flexible exciter, or flexible transducer, etc., but embodiments of the present disclosure are not limited thereto.

[0084] One or more vibration devices 131 according to embodiments of this disclosure may include a quadrilateral shape having a first length parallel to a first direction X and a second length parallel to a second direction Y intersecting the first direction X. For example, one or more vibration devices 131 may include a square shape in which the first length and the second length are the same. However, embodiments of this disclosure are not limited thereto, and one or more vibration devices 131 may include a rectangular shape, a non-quadrilateral shape, a circular shape, or an elliptical shape in which one of the first length and the second length is greater than the other.

[0085] The vibration device 130 or one or more vibration devices 131 according to embodiments of this disclosure may include a first vibration device to a third vibration device 131-1, 131-2 and 131-3.

[0086] According to the embodiments of the present disclosure, the first vibration device 131-1 can be disposed at the flat portion 110a1, the second vibration device 131-2 can be disposed at the concave curved portion 110a2, and the third vibration device 131-3 can be disposed at the convex curved portion 110a3.

[0087] According to embodiments of this disclosure, each of the first vibration device 131-1, the second vibration device 131-2, and the third vibration device 131-3 may include a vibration portion 131a (see...). Figures 5 to 10 The following will refer to... Figures 5 to 10 A detailed description of each of the vibration parts 131a of the first vibration device 131-1, the second vibration device 131-2, and the third vibration device 131-3.

[0088] According to embodiments of this disclosure, the vibrating portion 131a of each of the first vibration device 131-1, the second vibration device 131-2, and the third vibration device 131-3 may have different sound reproduction characteristics and / or sound pressure level characteristics.

[0089] For example, the first vibration device 131-1 may have the sound reproduction characteristics of full-tone vocal cords. Here, full-tone vocal cords may be in the frequency range of 200Hz to 20kHz, but the frequency range of full-tone vocal cords according to embodiments of this disclosure is not limited to this.

[0090] The second vibration device 131-2 may have the sound reproduction characteristics of high-pitched vocal cords. Here, the high-pitched vocal cords may be in the frequency range of 2kHz to 40kHz, but the frequency range of the high-pitched vocal cords according to the embodiments of this disclosure is not limited to this.

[0091] The third vibration device 131-3 may have the sound reproduction characteristics of the mid-tone vocal band. Here, the mid-tone vocal band may be in the frequency range of 500Hz to 2kHz, but the frequency range of the mid-tone vocal band according to the embodiments of this disclosure is not limited to this.

[0092] According to embodiments of this disclosure, the first vibration device 131-1, the second vibration device 131-2, and the third vibration device 131-3 may have vibration portions 131a with different physical properties. Here, physical properties may represent mechanical mass coefficient Qm, and the physical properties of the vibration portion 131a may have mechanical mass coefficient Qm within a range where the first vibration device 131-1, the second vibration device 131-2, and the third vibration device 131-3 do not overlap with each other.

[0093] The first vibration device 131-1 may have a mechanical mass coefficient Qm of less than 100, the second vibration device 131-2 may have a mechanical mass coefficient Qm of greater than 400, and the third vibration device 131-3 may have a mechanical mass coefficient Qm of 100 to 400. For example, the vibration part 131a of the first vibration device 131-1 may have a mechanical mass coefficient Qm of less than 100, the vibration part 131a of the second vibration device 131-2 may have a mechanical mass coefficient Qm of greater than 400, and the vibration part 131a of the third vibration device 131-3 may have a mechanical mass coefficient Qm of 100 to 400.

[0094] The first vibration device 131-1 can be disposed at the second surface 110b of the vibration member 110 to overlap with the flat portion 110a1 of the vibration member 110, and can have the sound reproduction characteristics of the full-tone vocal cords. The vibration portion 131a of the first vibration device 131-1 can have a mechanical mass coefficient Qm of less than 100 to achieve the sound reproduction characteristics of the full-tone vocal cords, and can be suitable for the sound reproduction of the full-tone vocal cords, because when the vibration portion 131a of the first vibration device 131-1 has a mechanical mass coefficient Qm of less than 100, the resonance characteristics are low.

[0095] The second vibration device 131-2 can be disposed at the second surface 110b of the vibration member 110 to overlap with the concave curved portion 110a2 of the vibration member 110, and can have the sound reproduction characteristics of the mid-tone vocal band. The vibration portion 131a of the second vibration device 131-2 can have a mechanical mass coefficient Qm of 100 to 400 to achieve the sound reproduction characteristics of the mid-tone vocal band and the sound reproduction characteristics covering the frequency range of the mid-tone vocal band, and can have moderate resonance characteristics when the vibration portion 131a of the second vibration device 131-2 has a mechanical mass coefficient Qm of 100 to 400.

[0096] The third vibration device 131-3 can be disposed at the second surface 110b of the vibration member 110 to overlap with the convex curved portion 110a3 of the vibration member 110, and can have the sound reproduction characteristics of the high-pitched vocal cords. The vibration portion 131a of the third vibration device 131-3 can have a mechanical mass coefficient Qm greater than 400, which is suitable for resonance of the high-pitched vocal cords to achieve the sound reproduction characteristics of the high-pitched vocal cords. The vibration portion 131a of the third vibration device 131-3 with the sound reproduction characteristics of the high-pitched vocal cords can have a mechanical mass coefficient Qm greater than 400, and therefore, the change in mechanical loss when converting electrical energy into mechanical energy can be reduced, and the amount of heat can be reduced, thereby preventing the generation of heat caused by the sound reproduction of the high-pitched vocal cords.

[0097] According to embodiments of the present disclosure, the vibration device 130 can be connected or coupled to the second surface 110b of the vibration member 110 via the adhesive member 120.

[0098] The adhesive member 120 may be disposed between the vibrating member 110 and the vibrating device 130. For example, the adhesive member 120 may be disposed between the vibrating member 110 and the first vibrating device 131-1, the second vibrating device 131-2, and the third vibrating device 131-3. For example, the adhesive member 120 may connect or couple the first vibrating device 131-1, the second vibrating device 131-2, and the third vibrating device 131-3 to the second surface 110b of the vibrating member 110.

[0099] The adhesive member 120 according to embodiments of this disclosure may include an adhesive layer (or adhesive layer) having good adhesion or bonding strength. For example, the adhesive member 120 may include double-sided tape, double-sided foam pad, or adhesive sheet. For example, when the adhesive member 120 includes an adhesive sheet (or adhesive layer), the adhesive member 120 may include only the adhesive layer or adhesive layer without a base member such as a plastic material.

[0100] The adhesive layer (or adhesive layer) of the adhesive member 120 according to embodiments of the present disclosure may include epoxy resin, acrylic resin, silicone resin or polyurethane, but embodiments of the present disclosure are not limited thereto.

[0101] According to another embodiment of the present disclosure, the adhesive layer (or adhesive layer) of the adhesive member 120 may include pressure-sensitive adhesive (PSA), optically transparent adhesive (OCA), or optically transparent resin (OCR), but the embodiments of the present disclosure are not limited thereto.

[0102] The sound device 10 according to embodiments of this disclosure may further include a housing 150 and a connecting member 140.

[0103] The housing 150 may be disposed on the rear surface of the vibrating member 110 to cover the second surface 110b of the vibrating member 110 and one or more vibrating devices 131. The housing 150 may include a receiving space 150s for accommodating the vibrating devices 130 and may have a box shape with one side open. Furthermore, the opening on one side of the receiving space 150s is covered by the vibrating member 110, and a predetermined air gap may be formed between the receiving space 150s and the vibrating member 110.

[0104] The housing 150 according to embodiments of this disclosure may include one or more of metallic materials and non-metallic materials (or composite non-metallic materials), but embodiments of this disclosure are not limited thereto. For example, the housing 150 may include one or more of metallic materials, plastics, and wood, but embodiments of this disclosure are not limited thereto. For example, the housing 150 may be referred to by terms such as: shell, outer shell, shell component, enclosure, enclosure member, cabinet, enclosure, sealing component, sealing cover, sealing box, or speaker, but embodiments of this disclosure are not limited thereto. For example, the accommodating space 150s of the housing 150 may be referred to by terms such as gap space, air gap, vibration space, sound space, speaker, or sealing space, but embodiments of this disclosure are not limited thereto.

[0105] When the vibrating member 110 vibrates, the housing 150 according to embodiments of the present disclosure can retain the impedance component based on the air acting on the vibrating member 110. For example, the air near the vibrating member 110 can resist the vibration of the vibrating member 110 and can be used as an impedance component having a reactive component and a resistance of different resistance based on frequency. Therefore, the housing 150 can be configured to enclose the space surrounding the vibrating device 130 and can thus retain the impedance component (or air impedance or acoustic impedance) acting on the vibrating member 110 due to the air, thereby improving the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the vibrating member 110, and improving the sound quality of the high-pitched vocal cords generated by the vibration of the vibrating member 110.

[0106] The housing 150 according to embodiments of the present disclosure may include a bottom portion 151 and a side portion 152.

[0107] The bottom portion 151 may be disposed on the rear surface of the vibrating member 110 to cover the second surface 110b of the vibrating member 110 and the vibrating device 130. For example, the bottom portion 151 may be spaced apart from the second surface 110b of the vibrating member 110 and the vibrating device 130. For example, the bottom portion 151 may be referred to by terms such as housing plate or housing bottom portion, but embodiments of this disclosure are not limited thereto.

[0108] The side portion 152 may be connected to the outer periphery of the bottom portion 151. For example, the side portion 152 may be bent from the outer periphery of the bottom portion 151 in a third direction Z parallel to the thickness direction of the vibrating member 110. For example, the side portion 152 may include a first side portion to a fourth side portion. For example, the side portion 152 may be referred to as a housing side surface or a housing sidewall, etc., but embodiments of this disclosure are not limited thereto.

[0109] The side portion 152 can be integrated into the bottom portion 151. For example, the bottom portion 151 and the side portion 152 can be integrated as one piece, and thus, the receiving space 150s surrounded by the side portion 152 can be provided on the bottom portion 151. Therefore, the bottom portion 151 and the side portion 152 can have a box shape with one side open.

[0110] The side portion 152 can be connected or coupled to the second surface 110b of the vibrating member 110 via the connecting member 140. For example, the side portion 152 can be connected or coupled to the peripheral portion of the second surface 110b of the vibrating member 110 via the connecting member 140.

[0111] According to embodiments of this disclosure, the connecting member 140 disposed between the housing 150 and the vibrating member 110 can be configured to minimize or prevent vibration transmission from the vibrating member 110 to the housing 150. The connecting member 140 may include material properties suitable for blocking vibration. For example, the connecting member 140 may include an elastic material. For example, the connecting member 140 may include an elastic material for vibration absorption (or shock absorption). The connecting member 140 according to embodiments of this disclosure may be configured as a polyurethane material or a polyolefin material, but embodiments of this disclosure are not limited thereto. For example, the connecting member 140 according to embodiments of this disclosure may include one or more of double-sided polyurethane tape, double-sided polyurethane foam tape, or double-sided sponge tape, but embodiments of this disclosure are not limited thereto.

[0112] According to embodiments of this disclosure, the connecting member 140 may have a thickness for minimizing or preventing vibration transmission from the vibrating member 110 to the housing 150. The connecting member 140 may absorb vibrations from the vibrating member 110 based on its thickness and elasticity, thereby minimizing or preventing vibration transmission from the vibrating member 110 to the housing 150. The connecting member 140 may prevent physical contact (or friction) between the vibrating member 110 and the housing 150, and therefore, may prevent noise (or vibration) caused by physical contact (or friction) between the vibrating member 110 and the housing 150. For example, the connecting member 140 may be referred to as a buffer member, elastic member, damping member, vibration absorbing member, or vibration blocking member, etc., but embodiments of this disclosure are not limited thereto.

[0113] The connecting member 140 may include a certain elasticity and a certain adhesive force, and therefore, can deform between the vibrating member 110 and the housing 150 to correspond to the shape of the vibrating member 110. For example, in Figure 2 In this context, the cross-sectional surface of the connecting member 140 disposed between the housing 150 and the vibrating member 110 in the right region RA may not have a rectangular shape, and the first surface of the connecting member 140 may be deformable to accommodate the bending degree of the vibrating member 110 in the right region RA. Furthermore, as shown below... Figures 13 to 1As described in section 6, when the vibrating member 110 is not fixed in a bent state by the variable curvature layer 160 or the curvature changing device 170 and the bending state of the vibrating member 110 changes, regardless of the variable bending state of the connecting member 110, the first surface of the connecting member 140 coupled to the second surface 110b of the vibrating member 110 can be fixed to the vibrating member 110, and the shape of the first surface of the connecting member 140 can also be changed to adapt to the bending state of the second surface 110b of the vibrating member 110.

[0114] According to embodiments of this disclosure, one or more vibration devices 131 can vibrate based on a vibration drive signal (or sound signal or speech signal) provided from a sound processing circuit to cause the vibrating member 110 to vibrate, thereby generating or outputting sound. In the sound generated based on the vibration of the vibrating member 110, the sound pressure level characteristics can be increased based on the vibration of the vibrating member 110 having various inherent vibration frequencies, and the reproduction of high-pitched vocal cords can be expanded. For example, when the vibrating member 110, which has a non-planar structure, vibrates, high-pitched vocal cord sound can be generated or output in a relatively thick region, and low-pitched vocal cord sound can be generated or output in a relatively thin region.

[0115] Figure 3A The structure of a demultiplexer according to an embodiment of this disclosure is shown, and Figures 3B to 3D The sound reproduction characteristics of a vibration device based on a demultiplexer are shown. Figures 3B to 3D In this diagram, the horizontal axis represents frequency in Hertz (Hz), and the vertical axis represents sound pressure level (SPL) in decibels (dB). Frequency can be the frequency of the high-pitched vocal cords facing the horizontal axis.

[0116] Reference Figure 3A External sound signals can be input as input signals to demultiplexer 173. Demultiplexer 173 can be a component of sound processing circuit 170 or a component integrated into sound processing circuit 170. Demultiplexer 173 can select whether to apply a filter to the input sound signal or whether to apply a filter, and can provide a drive signal (or sound signal or speech signal) to vibration device 130.

[0117] Reference Figure 3B When the sound processing circuit 170, including the demultiplexer 173, is connected to the first vibration device 131-1, the demultiplexer 173 can provide the first vibration device 131-1 with a drive signal without an applied filter, and therefore the first vibration device 131-1 can have full-tone vocal cord sound reproduction characteristics.

[0118] Reference Figure 3CWhen the sound processing circuit 170, including the demultiplexer 173, is connected to the third vibration device 131-3, the demultiplexer 173 can provide the third vibration device 131-3 with a drive signal that applies a bandpass filter, and therefore, the third vibration device 131-3 can have sound reproduction characteristics of mid-tone and low-tone vocal bands. For example, the bandpass filter may include an inductor L and a capacitor C connected in series between the demultiplexer 173 and the third vibration device 131-3, but embodiments of this disclosure are not limited thereto.

[0119] Reference Figure 3D When the sound processing circuit 170, including the demultiplexer 173, is connected to the second vibration device 131-2, the demultiplexer 173 can provide the second vibration device 131-2 with a drive signal that applies a high-pass filter, and therefore, the second vibration device 131-2 can have the sound reproduction characteristics of high-pitched vocal cords. For example, the high-pass filter may include an inductor L and a capacitor C connected in parallel between the demultiplexer 173 and the second vibration device 131-2, but embodiments of this disclosure are not limited thereto.

[0120] Figure 4 A vibration device according to an embodiment of the present disclosure is shown. Figure 5 It is along Figure 4 The cross-sectional view taken by line B-B' is shown. Figure 6 It is shown Figure 5 A perspective view of the vibrating part shown. Figures 4 to 6 It shows Figure 1 and Figure 2 Another embodiment of the vibration device shown in one or more figures.

[0121] Reference Figures 4 to 6 The vibration device 131 according to the embodiments of this disclosure may be referred to as a flexible vibration structure, flexible vibrator, flexible vibration generating device, flexible vibration generator, flexible sound generator, flexible sound device, flexible sound generating device, flexible sound generator, flexible actuator, flexible loudspeaker, flexible piezoelectric loudspeaker, thin film actuator, thin film piezoelectric composite actuator, thin film loudspeaker, thin film piezoelectric loudspeaker or thin film piezoelectric composite loudspeaker, etc., but the embodiments of this disclosure are not limited thereto.

[0122] The vibration device 131 according to the embodiments of the present disclosure may include a vibration generating part having a vibration part 131a, a first electrode part 131b and a second electrode part 131c.

[0123] The vibrating portion 131a may include a piezoelectric material (or electroactive material) exhibiting a piezoelectric effect. For example, the piezoelectric material may have the following characteristics: when pressure or twisting (or bending) is applied to the crystal structure by an external force, a potential difference arises due to dielectric polarization (or polarization) caused by the change in the relative positions of positive (+) ions and negative (-) ions, and vibration is generated by an electric field based on the reverse voltage applied to it. The vibrating portion 131a may be referred to as a vibrating layer, piezoelectric layer, piezoelectric material layer, electroactive layer, piezoelectric vibrating portion, piezoelectric material portion, electroactive portion, piezoelectric structure, piezoelectric composite layer, piezoelectric composite material, or piezoelectric ceramic composite material, etc., but the embodiments of this disclosure are not limited thereto. The vibrating portion 131a may be formed of a transparent, translucent, or opaque piezoelectric material, and may be transparent, translucent, or opaque.

[0124] The vibration portion 131a according to embodiments of the present disclosure may include a plurality of first portions 131a1 and a plurality of second portions 131a2. For example, the plurality of first portions 131a1 and the plurality of second portions 131a2 may be arranged alternately and repeatedly along a first direction X (or a second direction Y). For example, the first direction X may be the width direction of the vibration portion 131a, and the second direction Y may be the length direction of the vibration portion 131a, but embodiments of the present disclosure are not limited thereto. For example, the first direction X may be the length direction of the vibration portion 131a, and the second direction Y may be the width direction of the vibration portion 131a.

[0125] Each of the plurality of first portions 131a1 can be configured as an inorganic material portion. The inorganic material portion may include a piezoelectric material, a composite piezoelectric material, or an electroactive material having a piezoelectric effect.

[0126] Each of the plurality of first portions 131a1 can be configured as a ceramic matrix material for generating relatively high vibrations, or can be configured as a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure can exhibit both piezoelectric and inverse piezoelectric effects and can be an oriented plate-like structure. The perovskite crystal structure can be represented by the chemical formula "ABO3". In the chemical formula, "A" can include a divalent metal element, and "B" can include a tetravalent metal element. As an embodiment of this disclosure, in the chemical formula "ABO3", "A" and "B" can be cations, and "O" can be an anion. For example, each of the plurality of first portions 131a1 can include one of lead(II) titanate (PbTiO3), lead zirconate (PbZrO3), lead zirconate titanate (PbZrTiO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3), but embodiments of this disclosure are not limited thereto.

[0127] The first portion 131a1 of the vibration portion 131a according to embodiments of this disclosure may include a material based on lead zirconate titanate (PZT), including lead (Pb), zirconium (Zr), and titanium (Ti); or may include a material based on lead nickel niobate (PZNN), including lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but embodiments of this disclosure are not limited thereto. Additionally, the first portion 131a1 of the vibration portion 131a may include at least one or more of calcium titanate (CaTiO3), BaTiO3, and SrTiO3 that do not contain lead (Pb), but embodiments of this disclosure are not limited thereto.

[0128] Each of the plurality of first portions 131a1 according to embodiments of the present disclosure may be disposed between a plurality of second portions 131a2 and may have a first width W1 parallel to a first direction X (or a second direction Y) and a length parallel to a second direction Y (or a first direction X). Each of the plurality of second portions 131a2 may have a second width W2 parallel to a first direction X (or a second direction Y) and may have a length parallel to a second direction Y (or a first direction X). The first width W1 may be the same as or different from the second width W2. For example, the first width W1 may be greater than the second width W2. For example, the first portions 131a1 and the second portions 131a2 may include line shapes or strip shapes having the same size or different sizes. Therefore, the vibrating portion 131a may include a 2-2 composite structure with piezoelectric properties having 2-2 vibration modes, and thus may have a resonant frequency of 20 kHz or less, but embodiments of the present disclosure are not limited thereto. For example, the resonant frequency of the vibrating portion 131a may vary at least based on one or more of the shape, length, and thickness, etc.

[0129] In the vibrating portion 131a, each of the plurality of first portions 131a1 and the plurality of second portions 131a2 may be arranged (or arranged) in parallel on the same plane (or the same layer). Each of the plurality of second portions 131a2 may be configured to fill the gap between two adjacent first portions of the plurality of first portions 131a1, and may be connected or attached to the adjacent second portion 131a2. Thus, the vibrating portion 131a may extend to a desired size or length based on the side coupling (or connection) of the first portions 131a1 and the second portions 131a2.

[0130] In the vibrating part 131a, the width (or dimension) W2 of each of the plurality of second parts 131a2 may gradually decrease in the direction from the center of the vibrating part 131a or the vibrating device 131 to the two outer peripheries (or the two ends).

[0131] According to embodiments of this disclosure, the second portion 131a2 with the largest width W2 among the plurality of second portions 131a2 can be located at the portion where the highest stress may concentrate when the vibrating portion 131a or the vibrating device 131 vibrates (or is vibrating) in the vertical direction Z (or the thickness direction). The second portion 131a2 with the smallest width W2 among the plurality of second portions 131a2 can be located at the portion where relatively low stress may occur when the vibrating portion 131a or the vibrating device 131 vibrates in the vertical direction Z. For example, the second portion 131a2 with the largest width W2 among the plurality of second portions 131a2 can be provided at the central portion of the vibrating portion 131a, and the second portion 131a2 with the smallest width W2 among the plurality of second portions 131a2 can be provided at each of the two outer peripheries of the vibrating portion 131a. Therefore, when the vibrating portion 131a or the vibrating device 131 vibrates in the vertical direction Z, the interference of sound waves or the overlap of resonant frequencies occurring in the portion where the highest stress concentration occurs can be reduced or minimized. Therefore, it can reduce the sound pressure level dip in the low-pitched vocal cords, thereby improving the flatness of the sound characteristics in the low-pitched vocal cords.

[0132] In the vibrating portion 131a, each of the plurality of first portions 131a1 may have a different size (or width). For example, the size (or width) of each of the plurality of first portions 131a1 may gradually decrease or increase in the direction from the center portion of the vibrating portion 131a or the two peripheries (or the two ends). For example, in the vibrating portion 131a, based on the various inherent vibration frequencies of the vibrations of each of the plurality of first portions 131a1 with different sizes, the sound pressure level characteristics of the sound can be enhanced, and the sound reproduction band can be increased.

[0133] Multiple second portions 131a2 can be disposed between multiple first portions 131a1. Therefore, in the vibrating portion 131a or vibrating device 131, the vibrational energy of the links in a unit lattice of each first portion 131a1 can be increased by the corresponding second portion 131a2, and thus, the vibrational characteristics can be enhanced, and piezoelectric properties and flexibility can be ensured. For example, the second portion 131a2 may comprise one or more of epoxy-based polymers, acrylic-based polymers, and silicone-based polymers, but embodiments of this disclosure are not limited thereto.

[0134] According to embodiments of this disclosure, multiple second portions 131a2 can be configured as organic material portions. For example, the organic material portions can be disposed between the inorganic material portions and thus can absorb impacts applied to the inorganic material portions (or the first portion), can release stress concentrated on the inorganic material portions to improve the overall durability of the vibrating portion 131a or the vibrating device 131, and can provide flexibility to the vibrating portion 131a or the vibrating device 131.

[0135] According to embodiments of this disclosure, the plurality of second portions 131a2 may have a modulus (or Young's modulus) and viscoelasticity lower than those of each first portion 131a1, and therefore, the second portions 131a2 may enhance the reliability of each first portion 131a1 which is susceptible to impact due to its brittle properties. For example, the second portions 131a2 may be configured as materials having a loss coefficient of about 0.01 to about 1 and a modulus of about 0.1 GPa to about 10 GPa.

[0136] The organic material portion disposed at the second portion 131a2 may include one or more of organic materials, organic polymers, organic piezoelectric materials, and organic non-piezoelectric materials that have flexible properties compared to the inorganic material portion of the first portion 131a1. For example, the second portion 131a2 may be referred to as an adhesive portion, elastic portion, bending portion, damping portion, or flexible portion that is flexible, but embodiments of the present disclosure are not limited thereto.

[0137] Multiple first portions 131a1 and second portions 131a2 can be disposed on the same plane (or connected to the same plane), and therefore, the vibrating portion 131a according to embodiments of the present disclosure can have a single thin film type. For example, the vibrating portion 131a can have a structure in which multiple first portions 131a1 are connected to one side. For example, multiple first portions 131a1 can have a structure connected to the entire vibrating portion 131a. For example, the vibrating portion 131a can vibrate vertically by first portions 131a1 having vibratory characteristics, and can be bent into a curved shape by second portions 131a2 having flexibility. In addition, in the vibrating portion 131a according to embodiments of the present disclosure, the dimensions of the first portions 131a1 and the second portions 131a2 can be adjusted based on the piezoelectric characteristics and flexibility required for the vibrating portion 131a or the vibrating device 131. As an embodiment of the present disclosure, when the vibrating portion 131a requires piezoelectric characteristics rather than flexibility, the dimensions of the first portions 131a1 can be adjusted to be larger than the dimensions of the second portions 131a2. As another embodiment of this disclosure, when the vibrating portion 131a requires flexibility rather than piezoelectric properties, the size of the second portion 131a2 can be adjusted to be larger than the size of the first portion 131a1. Therefore, the size of the vibrating portion 131a can be adjusted based on the desired characteristics, and thus, the vibrating portion 131a can be easily designed.

[0138] The first electrode portion 131b may be disposed on the first surface (or upper surface) of the vibrating portion 131a. The first electrode portion 131b may be commonly disposed on the first surface of each of the plurality of first portions 131a1 and the first surface of each of the plurality of second portions 131a2, or coupled to the first surface of each of the plurality of first portions 131a1 and the first surface of each of the plurality of second portions 131a2, and may be electrically connected to the first surface of each of the plurality of first portions 131a1. For example, the first electrode portion 131b may be in the shape of a single electrode (or a common electrode) disposed on the entire first surface of the vibrating portion 131a. For example, the first electrode portion 131b may have a shape substantially the same as that of the vibrating portion 131a, but embodiments of this disclosure are not limited thereto.

[0139] The first electrode portion 131b according to embodiments of this disclosure may be formed of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the transparent or semi-transparent conductive material may include indium tin oxide (ITO) or indium zinc oxide (IZO), but embodiments of this disclosure are not limited thereto. The opaque conductive material may include aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), magnesium (Mg), and any alloy thereof, but embodiments of this disclosure are not limited thereto.

[0140] The second electrode portion 131c may be disposed on a second surface (or rear surface) of the vibrating portion 131a that is different from (or opposite to) the first surface. The second electrode portion 131c may be commonly disposed on the second surface of each of the plurality of first portions 131a1 and the second surface of each of the plurality of second portions 131a2, or coupled to the second surface of each of the plurality of first portions 131a1 and the second surface of each of the plurality of second portions 131a2, and may be electrically connected to the second surface of each of the plurality of first portions 131a1. For example, the second electrode portion 131c may be in the shape of a single electrode (or a common electrode) disposed on the entire second surface of the vibrating portion 131a. The second electrode portion 131c may have the same shape as the vibrating portion 131a, but embodiments of this disclosure are not limited thereto. According to embodiments of this disclosure, the second electrode portion 131c may be formed of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode portion 131c may be formed of the same material as the first electrode portion 131b, but embodiments of this disclosure are not limited thereto. As another embodiment of this disclosure, the second electrode portion 131c may be formed of a different material than the first electrode portion 131b.

[0141] The vibrating portion 131a can be polarized (or polarized) by applying a certain voltage to the first electrode portion 131b and the second electrode portion 131c in a certain temperature atmosphere or in a temperature atmosphere that can be changed from high temperature to room temperature, but the embodiments of this disclosure are not limited thereto. For example, the vibrating portion 131a can vibrate by alternately and repeatedly contracting and expanding based on the inverse piezoelectric effect according to an externally applied sound signal (or voice signal or vibration drive signal) to the first electrode portion 131b and the second electrode portion 131c. For example, the vibrating portion 131a can vibrate based on the vertical vibration and planar vibration of the first electrode portion 131b and the second electrode portion 131c. The vibrating portion 131a can further improve the vibration by increasing the displacement of the vibrating member (or vibrating plate or vibrating object) through contraction and expansion in the planar direction.

[0142] The vibration device 131 according to the embodiments of this disclosure may further include a first cover member 131d and a second cover member 131e.

[0143] The first cover member 131d may be disposed on the first surface of the vibration device 131. For example, the first cover member 131d may be configured to cover the first electrode portion 131b. Therefore, the first cover member 131d can protect the first electrode portion 131b.

[0144] The second cover member 131e may be disposed on the second surface of the vibration device 131. For example, the second cover member 131e may be configured to cover the second electrode portion 131c. Therefore, the second cover member 131e can protect the second electrode portion 131c.

[0145] The first cover member 131d and the second cover member 131e according to embodiments of this disclosure may each comprise one or more materials selected from plastic, fiber, and wood, but embodiments of this disclosure are not limited thereto. For example, each of the first cover member 131d and the second cover member 131e may comprise the same or different materials. For example, each of the first cover member 131d and the second cover member 131e may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of this disclosure are not limited thereto.

[0146] According to embodiments of this disclosure, the first cover member 131d can be connected or coupled to the first electrode portion 131b via a first adhesive layer 131f. For example, the first cover member 131d can be connected or coupled to the first electrode portion 131b via a film lamination process using the first adhesive layer 131f.

[0147] According to embodiments of this disclosure, the second cover member 131e can be connected or coupled to the second electrode portion 131c via the second adhesive layer 131g. For example, the second cover member 131e can be connected or coupled to the second electrode portion 131c via a film lamination process using the second adhesive layer 131g.

[0148] A first adhesive layer 131f may be disposed between the first electrode portion 131b and the first cover member 131d. A second adhesive layer 131g may be disposed between the second electrode portion 131c and the second cover member 131e. For example, the first adhesive layer 131f and the second adhesive layer 131g may be disposed between the first cover member 131d and the second cover member 131e to completely surround the vibrating portion 131a, the first electrode portion 131b, and the second electrode portion 131c. For example, the vibrating portion 131a, the first electrode portion 131b, and the second electrode portion 131c may be embedded or built into the first adhesive layer 131f and the second adhesive layer 131g.

[0149] Each of the first adhesive layer 131f and the second adhesive layer 131g according to embodiments of the present disclosure may include an electrically insulating material that is adhesive and capable of compression and decompression. For example, each of the first adhesive layer 131f and the second adhesive layer 131g may include an epoxy resin, an acrylic resin, a silicone resin, or a polyurethane resin, but embodiments of the present disclosure are not limited thereto.

[0150] According to embodiments of this disclosure, either the first cover member 131d or the second cover member 131e can be attached to or coupled to a vibrating member (or vibrating plate or vibrating object) via an adhesive member. For example, either the first cover member 131d or the second cover member 131e can be attached to or coupled to a vibrating member (or vibrating plate or vibrating object) via the above-mentioned reference. Figure 1 The adhesive component 120 shown in Figure 3 is attached to or coupled to the vibration component 110.

[0151] The vibration device 131 according to the embodiments of the present disclosure may further include a first power line PL1 disposed at the first cover member 131d, a second power line PL2 disposed at the second cover member 131e, and a pad portion 131p electrically connected to the first power line PL1 and the second power line PL2.

[0152] A first power line PL1 may be disposed between the first electrode portion 131b and the first cover member 131d, and may be electrically connected to the first electrode portion 131b. The first power line PL1 may extend along the second direction Y and may be electrically connected to the central portion of the first electrode portion 131b. As an embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode portion 131b via an anisotropic conductive film. As another embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode portion 131b via a conductive material (or particles) included in the first adhesive layer 131f.

[0153] The second power line PL2 can be disposed between the second electrode portion 131c and the second cover member 131e, and can be electrically connected to the second electrode portion 131c. The second power line PL2 can extend along the second direction Y and can be electrically connected to the central portion of the second electrode portion 131c. As an embodiment of the present disclosure, the second power line PL2 can be electrically connected to the second electrode portion 131c through an anisotropic conductive film. As another embodiment of the present disclosure, the second power line PL2 can be electrically connected to the second electrode portion 131c through conductive material (or particles) included in the second adhesive layer 131g.

[0154] The pad portion 131p can be disposed at a peripheral portion of either the first cover member 131d or the second cover member 131e to be electrically connected to a portion (or an end) of each of the first power line PL1 and the second power line PL2.

[0155] According to embodiments of the present disclosure, the pad portion 131p may include a first pad electrode electrically connected to one end of a first power line PL1 and a second pad electrode electrically connected to one end of a second power line PL2.

[0156] The first pad electrode may be disposed at a peripheral portion of either the first cover member 131d or the second cover member 131e, for electrical connection to a portion of the first power line PL1. For example, the first pad electrode may pass through either the first cover member 131d or the second cover member 131e for electrical connection to a portion of the first power line PL1.

[0157] The second pad electrode can be arranged in parallel with the first pad electrode to be electrically connected to a portion of the second power line PL2. For example, the second pad electrode can pass through either the first cover member 131d or the second cover member 131e to be electrically connected to a portion of the second power line PL2.

[0158] According to embodiments of this disclosure, each of the first power line PL1, the second power line PL2, and the pad portion 131p can be configured to be transparent, translucent, or opaque.

[0159] According to another embodiment of this disclosure, the pad portion 131p can be electrically connected to the signal cable 132.

[0160] The signal cable 132 can be electrically connected to the pad portion 131p disposed at the vibration device 131, and can provide the vibration device 131 with a vibration drive signal (or sound signal or voice signal) provided from the sound processing circuit. According to embodiments of this disclosure, the signal cable 132 may include a first terminal electrically connected to a first pad electrode of the pad portion 131p and a second terminal electrically connected to a second pad electrode of the pad portion 131p. For example, the signal cable 132 may be configured as a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multilayer printed circuit, or a flexible multilayer printed circuit board, but embodiments of this disclosure are not limited thereto.

[0161] The sound processing circuit can generate an AC vibration drive signal, including a first vibration drive signal and a second vibration drive signal, based on sound data provided from an external sound data generation circuit. The first vibration drive signal can be either a positive (+) vibration drive signal or a negative (-) vibration drive signal, and the second vibration drive signal can also be either a positive (+) vibration drive signal or a negative (-) vibration drive signal. For example, the first vibration drive signal can be provided to the first electrode portion 131b via the first terminal of the signal cable 132, the first pad electrode of the pad portion 131p, and the first power line PL1. The second vibration drive signal can be provided to the second electrode portion 131c via the second terminal of the signal cable 132, the second pad electrode of the pad portion 131p, and the second power line PL2.

[0162] According to embodiments of this disclosure, the signal cable 132 may be configured to be transparent, semi-transparent, or opaque.

[0163] As described above, the vibration device 131 according to embodiments of this disclosure can be implemented as a thin-film type in which a first portion 131a1 having piezoelectric properties and a second portion 131a2 having flexibility are alternately repeated and connected, and thus can be bent in a shape corresponding to the shape of the vibrating member or vibrating object. For example, when the vibration device 131 is connected or coupled to a vibrating member including various curved portions by an adhesive member 120, the vibration device 131 can be bent in a curved shape along the shape of the curved portion of the vibrating member, and despite being bent in a curved shape, its reliability against damage or breakdown is not reduced.

[0164] Figures 7A to 7D This is a perspective view showing a vibrating portion of a vibration device according to another embodiment of the present disclosure, which is an embodiment of the vibration device according to the present disclosure.

[0165] Reference Figure 7A According to another embodiment of the present disclosure, the vibration portion 131a may include a plurality of first portions 131a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion 131a2 (or one or more second portions) disposed between the plurality of first portions 131a1.

[0166] Each of the plurality of first portions 131a1 may be configured to be spaced apart from each other along a first direction X and a second direction Y. For example, each of the plurality of first portions 131a1 may have a hexahedral shape (or hexagonal object shape) of the same size and may be configured in a lattice shape. Each of the plurality of first portions 131a1 may include the same as referenced above. Figures 4 to 6The first part 131a1 describes essentially the same piezoelectric material, and therefore the same reference numerals can denote the same elements, and their repeated descriptions can be omitted.

[0167] The second portion 131a2 may be disposed between a plurality of first portions 131a1 along each of the first direction X and the second direction Y. The second portion 131a2 may be configured to fill the gap or space between two adjacent first portions 131a1, or to surround each of the plurality of first portions 131a1, and thus may be connected to or attached to adjacent first portions 131a1. According to embodiments of this disclosure, the width of the second portion 131a2 disposed between two adjacent first portions 131a1 along the first direction X may be the same as or different from the width of the first portions 131a1, and the width of the second portion 131a2 disposed between two adjacent first portions 131a1 along the second direction Y may be the same as or different from the width of the first portions 131a1. The second portion 131a2 may include, as referenced above... Figures 4 to 6 The second part 131a2 describes essentially the same organic material, and therefore the same reference numerals may refer to the same elements, and their repeated descriptions may be omitted.

[0168] As described above, the vibrating portion 131a according to another embodiment of the present disclosure may include a 1-3 composite structure with piezoelectric properties having 1-3 vibration modes, and therefore may have a resonant frequency of 30 MHz or less, but the embodiments of the present disclosure are not limited thereto. For example, the resonant frequency of the vibrating portion 131a may vary at least based on one or more of the shape, length, and thickness.

[0169] Reference Figure 7B According to another embodiment of the present disclosure, the vibration portion 131a may include a plurality of first portions 131a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion (or one or more second portions) 131a2 disposed between the plurality of first portions 131a1.

[0170] Each of the plurality of first portions 131a1 may have a flat structure with a circular shape. For example, each of the plurality of first portions 131a1 may have a circular plate shape, but embodiments of this disclosure are not limited thereto. For example, each of the plurality of first portions 131a1 may have a point shape, including an elliptical shape, a polygonal shape, or a donut shape. Each of the plurality of first portions 131a1 may include the shape described above. Figures 4 to 6 The first part 131a1 describes essentially the same piezoelectric material, and therefore the same reference numerals can refer to the same elements, and their repeated descriptions can be omitted.

[0171] The second portion 131a2 may be disposed between a plurality of first portions 131a1 along each of the first direction X and the second direction Y. The second portion 131a2 may be configured to surround each of the plurality of first portions 131a1, and thus may be connected or attached to the side surface of each of the plurality of first portions 131a1. Each of the plurality of first portions 131a1 and the second portion 131a2 may be disposed (or arranged) in parallel on the same plane (or the same layer). The second portion 131a2 may include components referenced above. Figures 4 to 6 The second part 131a2 describes essentially the same organic material, and therefore the same reference numerals may refer to the same elements, and their repeated descriptions may be omitted.

[0172] Reference Figure 7C According to another embodiment of the present disclosure, the vibration portion 131a may include a plurality of first portions 131a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion (or one or more second portions) 131a2 disposed between the plurality of first portions 131a1.

[0173] Each of the plurality of first portions 131a1 may have a flat triangular structure. For example, each of the plurality of first portions 131a1 may have a triangular plate shape. Each of the plurality of first portions 131a1 may include the structure referenced above. Figures 4 to 6 The first part 131a1 describes essentially the same piezoelectric material, and therefore the same reference numerals can refer to the same elements, and their repeated descriptions can be omitted.

[0174] According to embodiments of this disclosure, four adjacent first portions 131a1 of a plurality of first portions 131a1 may be adjacent to each other to form a quadrilateral (or a square or quadrilateral shape). The vertices of the four adjacent first portions 131a1 forming the quadrilateral shape may be adjacent to each other in the central portion (or central part) of the quadrilateral shape.

[0175] The second portion 131a2 may be disposed between a plurality of first portions 131a1 along each of the first direction X and the second direction Y. The second portion 131a2 may be configured to surround each of the plurality of first portions 131a1, and thus may be connected to or attached to the side surface of each of the plurality of first portions 131a1. Each of the plurality of first portions 131a1 and the second portion 131a2 may be disposed (or arranged) in parallel on the same plane (or the same layer). The second portion 131a2 may include components referenced above. Figures 4 to 6The second part 131a2 describes essentially the same organic material, and therefore the same reference numerals may refer to the same elements, and their repeated descriptions may be omitted.

[0176] Reference Figure 7D According to another embodiment of the present disclosure, the vibration portion 131a may include a plurality of first portions 131a1 spaced apart from each other along a first direction X and a second direction Y, and a second portion (or one or more second portions) 131a2 disposed between the plurality of first portions 131a1.

[0177] Each of the plurality of first portions 131a1 may have a flat triangular structure. For example, each of the plurality of first portions 131a1 may have a triangular plate shape. Each of the plurality of first portions 131a1 may include the structure referenced above. Figures 4 to 6 The first part 131a1 describes essentially the same piezoelectric material, and therefore the same reference numerals can refer to the same elements, and their repeated descriptions can be omitted.

[0178] According to another embodiment of this disclosure, six adjacent first portions 131a1 of a plurality of first portions 131a1 may be adjacent to each other to form a hexagonal shape (or a regular hexagonal shape). The vertices of the six adjacent first portions 131a1 forming the hexagonal shape may be adjacent to each other in the central portion (or central part) of the hexagonal shape.

[0179] The second portion 131a2 may be disposed between a plurality of first portions 131a1 along each of the first direction X and the second direction Y. The second portion 131a2 may be configured to surround each of the plurality of first portions 131a1, and thus may be connected to or attached to the side surface of each of the plurality of first portions 131a1. Each of the plurality of first portions 131a1 and the second portion 131a2 may be disposed (or arranged) in parallel on the same plane (or the same layer). The second portion 131a2 may include components referenced above. Figures 4 to 6 The second part 131a2 describes essentially the same organic material, and therefore the same reference numerals may refer to the same elements, and their repeated descriptions may be omitted.

[0180] Figure 8 A vibration device according to another embodiment of the present disclosure is shown. Figure 9 It is along Figure 8 The cross-sectional view taken by line C-C' is shown. Figure 8 and Figure 9 It shows Figure 1 Another embodiment of the vibration device shown in one or more of Figure 3.

[0181] Reference Figure 8 and Figure 9 According to another embodiment of the present disclosure, the vibration device 131 may include a first vibration generating portion 131A and a second vibration generating portion 131B.

[0182] Each of the first vibration generating portion 131A and the second vibration generating portion 131B can be electrically separated and is arranged spaced apart from each other along the first direction X. Each of the first vibration generating portion 131A and the second vibration generating portion 131B can alternately and repeatedly contract and / or expand to vibrate based on the piezoelectric effect. For example, the first vibration generating portion 131A and the second vibration generating portion 131B can be arranged or laid flat along the first direction X at a certain interval (or distance) SD1. Therefore, the vibration device 131 in which the first vibration generating portion 131A and the second vibration generating portion 131B are laid flat can be a vibration array, a vibration array portion, a vibration module array portion, a vibration array structure, a laid flat vibration array, a laid flat vibration array module, or a laid flat vibration membrane.

[0183] Each of the first vibration generating portion 131A and the second vibration generating portion 131B according to embodiments of the present disclosure may have a quadrilateral shape. For example, each of the first vibration generating portion 131A and the second vibration generating portion 131B may have a quadrilateral shape with a width of about 5 cm or more. For example, each of the first vibration generating portion 131A and the second vibration generating portion 131B may have a square shape with a size of 5 cm × 5 cm or more, but embodiments of the present disclosure are not limited thereto.

[0184] Each of the first vibration generating portion 131A and the second vibration generating portion 131B can be arranged or laid flat on the same plane, so that the vibration device 131 can have an enlarged area based on the tiling of the first vibration generating portion 131A and the second vibration generating portion 131B, which have relatively small dimensions.

[0185] Each of the first vibration generating portion 131A and the second vibration generating portion 131B can be arranged or laid flat at a certain interval SD1, and can therefore be implemented as a vibration device (or a single vibration device) that is driven as a complete unit rather than being driven independently. According to embodiments of the present disclosure, the first separation distance SD1 between the first vibration generating portion 131A and the second vibration generating portion 131B relative to the first direction X can be 0.1 mm or greater and less than 3 cm, but embodiments of the present disclosure are not limited thereto.

[0186] According to embodiments of this disclosure, each of the first vibration generating portion 131A and the second vibration generating portion 131B can be configured or tiled with a first separation distance (or interval) SD1 of 0.1 mm or greater and less than 3 cm, and thus can be driven as a vibration device, thereby increasing the sound reproduction band and sound pressure level characteristics of the sound generated based on the individual vibrations of the first vibration generating portion 131A and the second vibration generating portion 131B. For example, the first vibration generating portion 131A and the second vibration generating portion 131B can be configured with a first separation distance (or interval) SD1 of 0.1 mm or greater and less than 5 mm to increase the sound reproduction band of the sound generated based on the individual vibrations of the first vibration generating portion 131A and the second vibration generating portion 131B, and to increase the sound of the low-pitched sound band (e.g., sound pressure level characteristics of 500 Hz or less).

[0187] According to embodiments of this disclosure, when the first vibration generating portion 131A and the second vibration generating portion 131B are provided with an interval SD1 of less than 0.1 mm or no interval SD1, the reliability of the first vibration generating portion 131A and the second vibration generating portion 131B or the vibration device 131 may be reduced due to damage or cracks caused by physical contact between them that occur when each of the first vibration generating portion 131A and the second vibration generating portion 131B vibrates.

[0188] According to embodiments of this disclosure, when the first vibration generating portion 131A and the second vibration generating portion 131B are arranged at an interval SD1 of 3 cm or greater, the first vibration generating portion 131A and the second vibration generating portion 131B may not be driven as a vibration device due to the independent vibration of each of them. Therefore, the reproduction frequency band and sound pressure level characteristics of the sound generated based on the vibrations of the first vibration generating portion 131A and the second vibration generating portion 131B can be reduced. For example, when the first vibration generating portion 131A and the second vibration generating portion 131B are arranged at an interval SD1 of 3 cm or greater, the sound characteristics and sound pressure level characteristics of the low-pitched sound band (e.g., 500 Hz or lower) can be reduced respectively.

[0189] According to embodiments of this disclosure, when the first vibration generating portion 131A and the second vibration generating portion 131B are arranged at a 5mm interval SD1, each of the first vibration generating portion 131A and the second vibration generating portion 131B may not be fully driven as a vibration device, and thus, the sound characteristics and sound pressure level characteristics of the low-pitched vocal band (e.g., 200Hz or less) may be reduced respectively.

[0190] According to another embodiment of this disclosure, when the first vibration generating portion 131A and the second vibration generating portion 131B are arranged with a 1mm interval SD1, each of the first vibration generating portion 131A and the second vibration generating portion 131B can be driven as a vibration device, and thus, the sound reproduction frequency band can be increased, and the sound of the low-pitched vocal band can be increased (e.g., sound pressure level characteristics of 500Hz or less). For example, when the first vibration generating portion 131A and the second vibration generating portion 131B are arranged with a 1mm interval SD1, the vibration device 131 can be implemented as a large-area vibrator expanded based on the optimization of the separation distance between the first vibration generating portion 131A and the second vibration generating portion 131B. Therefore, the vibration device 131 can be driven as a large-area vibrator based on the individual vibration of the first vibration generating portion 131A and the second vibration generating portion 131B, and thus, the sound characteristics and sound pressure level characteristics can be increased based on the sound reproduction frequency band and the low-pitched vocal band generated by the large-area vibration of the vibration device 131, respectively.

[0191] Therefore, in order to achieve individual vibration (or a single vibration device) of the first vibration generating part 131A and the second vibration generating part 131B, the separation distance (or interval) SD1 between the first vibration generating part 131A and the second vibration generating part 131B can be adjusted to 0.1mm or greater and less than 3cm. Furthermore, in order to achieve individual vibration (or a single vibration device) of the first vibration generating part 131A and the second vibration generating part 131B, and to increase the sound pressure level characteristics of the low-pitched vocal cords, the separation distance (or interval) SD1 between the first vibration generating part 131A and the second vibration generating part 131B can be adjusted to 0.1mm or greater and less than 5mm.

[0192] Each of the first vibration generating portion 131A and the second vibration generating portion 131B according to embodiments of the present disclosure may include a vibration portion 131a, a first electrode portion 131b, and a second electrode portion 131c.

[0193] The vibration portion 131a of each of the first vibration generating portion 131A and the second vibration generating portion 131B may include a piezoelectric material (or an electroactive material) having a piezoelectric effect. For example, the vibration portion 131a of each of the first vibration generating portion 131A and the second vibration generating portion 131B may be configured to be similar to the above-mentioned... Figure 6 and Figures 7A to 7D Any of the described vibration parts 131a are substantially the same; therefore, the same reference numerals may refer to the same elements and their repeated descriptions may be omitted.

[0194] According to embodiments of this disclosure, each of the first vibration generating portion 131A and the second vibration generating portion 131B may include the above-mentioned reference. Figure 6 and Figures 7A to 7D The vibration portion 131a described may be any one of the vibration portions 131a, or may include different vibration portions 131a.

[0195] The first electrode portion 131b can be disposed on the first surface of the vibrating portion 131a and can be electrically connected to the first surface of the vibrating portion 131a. For example, the first electrode portion 131b can be related to the above-mentioned reference. Figure 5 The first electrode portion 131b described is substantially the same; therefore, the same reference numerals can refer to the same elements, and their repeated descriptions can be omitted.

[0196] The second electrode portion 131c can be disposed on the second surface of the vibrating portion 131a and electrically connected to the second surface of the vibrating portion 131a. The second electrode portion 131c can be referenced above. Figure 5 The second electrode portion 131c described is substantially the same; therefore, the same reference numerals can refer to the same elements, and their repeated descriptions can be omitted.

[0197] According to another embodiment of the present disclosure, the vibration device 131 may further include a first cover member 131d and a second cover member 131e.

[0198] The first cover member 131d may be disposed on the first surface of the vibration device 131. For example, the first cover member 131d may cover the first electrode portion 131b disposed on the first surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B, and therefore, the first cover member 131d may be commonly connected to the first surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B, or may commonly support the first surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B. Therefore, the first cover member 131d may protect the first surface or the first electrode portion 131b of each of the first vibration generating portion 131A and the second vibration generating portion 131B.

[0199] The second cover member 131e may be disposed on the second surface of the vibration device 131. For example, the second cover member 131e may cover the second electrode portion 131c disposed on the second surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B, and therefore, the second cover member 131e may be commonly connected to the second surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B, or may commonly support the second surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B. Thus, the second cover member 131e may protect the second surface or the second electrode portion 131c of each of the first vibration generating portion 131A and the second vibration generating portion 131B.

[0200] The first cover member 131d and the second cover member 131e according to embodiments of this disclosure may each comprise one or more materials selected from plastic, fiber, and wood, but embodiments of this disclosure are not limited thereto. For example, each of the first cover member 131d and the second cover member 131e may comprise the same material or different materials. For example, each of the first cover member 131d and the second cover member 131e may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but embodiments of this disclosure are not limited thereto.

[0201] According to embodiments of this disclosure, the first cover member 131d can be disposed on the first surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B via a first adhesive layer 131f. For example, the first cover member 131d can be directly disposed on the first surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B using a film lamination process with the first adhesive layer 131f. Therefore, each of the first vibration generating portion 131A and the second vibration generating portion 131B can be integrated (or disposed) with or laid flat with the first cover member 131d at a certain interval SD1.

[0202] According to embodiments of this disclosure, the second cover member 131e can be disposed on the second surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B via a second adhesive layer 131g. For example, the second cover member 131e can be directly disposed on the second surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B using a film lamination process with the second adhesive layer 131g. Therefore, each of the first vibration generating portion 131A and the second vibration generating portion 131B can be integrated (or disposed) with or laid flat with the second cover member 131e at a certain interval SD1.

[0203] The first adhesive layer 131f may be disposed between the first vibration generating portion 131A and the second vibration generating portion 131B and at the first surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B. For example, the first adhesive layer 131f may be formed on the rear surface (or inner surface) of the first cover member 131d facing each of the first surfaces of the first vibration generating portion 131A and the second vibration generating portion 131B, filling between the first vibration generating portion 131A and the second vibration generating portion 131B, and disposed between the first cover member 131d and the first surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B.

[0204] The second adhesive layer 131g may be disposed between the first vibration generating portion 131A and the second vibration generating portion 131B, and disposed on the second surface of each of the first vibration generating portion 131A and the second vibration generating portion 131B. For example, the second adhesive layer 131g may be formed on the front surface (or inner surface) of the second cover member 131e facing the second surfaces of each of the first vibration generating portion 131A and the second vibration generating portion 131B, filling the space between the first vibration generating portion 131A and the second vibration generating portion 131B, and disposed between the second cover member 131e and the second surfaces of each of the first vibration generating portion 131A and the second vibration generating portion 131B.

[0205] The first adhesive layer 131f and the second adhesive layer 131g may be connected or coupled to each other between the first vibration generating portion 131A and the second vibration generating portion 131B. Therefore, each of the first vibration generating portion 131A and the second vibration generating portion 131B may be surrounded by the first adhesive layer 131f and the second adhesive layer 131g. For example, the first adhesive layer 131f and the second adhesive layer 131g may be disposed between the first cover member 131d and the second cover member 131e to completely surround the first vibration generating portion 131A and the second vibration generating portion 131B. For example, each of the first vibration generating portion 131A and the second vibration generating portion 131B may be embedded or built into the first adhesive layer 131f and the second adhesive layer 131g.

[0206] Each of the first adhesive layer 131f and the second adhesive layer 131g according to embodiments of this disclosure may include an electrically insulating material that is adhesive and capable of compression and decompression. For example, each of the first adhesive layer 131f and the second adhesive layer 131g may include an epoxy resin, an acrylic resin, a silicone resin, or a polyurethane resin, but embodiments of this disclosure are not limited thereto. Each of the first adhesive layer 131f and the second adhesive layer 131g may be configured to be transparent, translucent, or opaque.

[0207] According to another embodiment of the present disclosure, the vibration device 131 may further include a first power line PL1 disposed at the first cover member 131d, a second power line PL2 disposed at the second cover member 131e, and a pad portion 131p electrically connected to the first power line PL1 and the second power line PL2.

[0208] A first power line PL1 may be disposed at the first cover member 131d. The first power line PL1 may be disposed on the rear surface of the first surface of the first cover member 131d facing each of the first vibration generating portions 131A and 131B. The first power line PL1 may be electrically connected to the first electrode portion 131b of each of the first vibration generating portions 131A and 131B. For example, the first power line PL1 may be electrically connected and directly connected to the first electrode portion 131b of each of the first vibration generating portions 131A and 131B. As an embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode portion 131b of each of the first vibration generating portions 131A and 131B via an anisotropic conductive film. As another embodiment of this disclosure, the first power line PL1 may be electrically connected to the first electrode portion 131b of each of the first vibration generating portions 131A and 131B via a conductive material (or particles) included in the first adhesive layer 131f.

[0209] According to embodiments of this disclosure, the first power line PL1 may include a first upper power line PL11 and a second upper power line PL12 disposed along a second direction Y. For example, the first upper power line PL11 may be electrically connected to the first electrode portion 131b of the first vibration generating portion 131A. The second upper power line PL12 may be electrically connected to the first electrode portion 131b of the second vibration generating portion 131B.

[0210] A second power line PL2 may be disposed at the second cover member 131e. The second power line PL2 may be disposed on the front surface of the second surface of the second cover member 131e facing each of the first vibration generating portions 131A and 131B. The second power line PL2 may be electrically connected to the second electrode portion 131c of each of the first vibration generating portions 131A and 131B. For example, the second power line PL2 may be electrically connected and directly connected to the second electrode portion 131c of each of the first vibration generating portions 131A and 131B. As an embodiment of this disclosure, the second power line PL2 may be electrically connected to the second electrode portion 131c of each of the first vibration generating portions 131A and 131B via an anisotropic conductive film. As another embodiment of this disclosure, the second power line PL2 may be electrically connected to the second electrode portion 131c of each of the first vibration generating portions 131A and 131B via a conductive material (or particles) included in the second adhesive layer 131g.

[0211] According to embodiments of this disclosure, the second power line PL2 may include a first lower power line PL21 and a second lower power line PL22 disposed along a second direction Y. For example, the first lower power line PL21 may be electrically connected to the second electrode portion 131c of the first vibration generating portion 131A. For example, the first lower power line PL21 may overlap with the first upper power line PL11. For example, the first lower power line PL21 may be configured not to overlap with the first upper power line PL11. The second lower power line PL22 may be electrically connected to the second electrode portion 131c of the second vibration generating portion 131B. For example, the second lower power line PL22 may overlap with the second upper power line PL12. For example, the second lower power line PL22 may be configured not to overlap with the second upper power line PL12.

[0212] The pad portion 131p can be configured at a peripheral portion of either the first cover member 131d or the second cover member 131e to be electrically connected to a portion (or an end) of each of the first power line PL1 and the second power line PL2.

[0213] According to embodiments of this disclosure, the pad portion 131p may include: a first pad electrode electrically connected to one end of a first power line PL1 and a second pad electrode electrically connected to one end of a second power line PL2.

[0214] The first pad electrode can be commonly connected to a portion of each of the first upper power line PL11 and the second upper power line PL12 of the first power line PL1. For example, a portion of each of the first upper power line PL11 and the second upper power line PL12 can branch off from the first pad electrode. The second pad electrode can be commonly connected to a portion of each of the first lower power line PL21 and the second lower power line PL22 of the second power line PL2. For example, a portion of each of the first lower power line PL21 and the second lower power line PL22 can branch off from the second pad electrode.

[0215] According to another embodiment of the present disclosure, the vibration device 131 may also include a signal cable 132.

[0216] The signal cable 132 can be electrically connected to the pad portion 131p disposed at the vibration device 131, and can provide the vibration device 131 with a vibration drive signal (or sound signal or voice signal) provided from the sound processing circuit. According to embodiments of this disclosure, the signal cable 132 may include a first terminal electrically coupled to a first pad electrode of the pad portion 131p and a second terminal electrically coupled to a second pad electrode of the pad portion 131p. For example, the signal cable 132 may be configured as a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multilayer printed circuit, or a flexible multilayer printed circuit board, but embodiments of this disclosure are not limited thereto.

[0217] The sound processing circuit can generate an AC vibration drive signal, including a first vibration drive signal and a second vibration drive signal, based on sound data. The first vibration drive signal can be either a positive (+) vibration drive signal or a negative (-) vibration drive signal, and the second vibration drive signal can also be either a positive (+) vibration drive signal or a negative (-) vibration drive signal. For example, the first vibration drive signal can be provided to the first electrode portion 131b of each of the first vibration generating portion 131A and the second vibration generating portion 131B via the first terminal of the signal cable 132, the first pad electrode of the pad portion 131p, and the first power line PL1. The second vibration drive signal can be provided to the second electrode portion 131c of each of the first vibration generating portion 131A and the second vibration generating portion 131B via the second terminal of the signal cable 132, the second pad electrode of the pad portion 131p, and the second power line PL2.

[0218] Figure 10 A vibration device according to another embodiment of the present disclosure is shown. Figure 10 It shows in Figure 8 and Figure 9The illustrated vibration device includes an embodiment with four vibration generating parts. Therefore, in the following text, elements other than the four vibration generating parts and related components may be referred to by the same reference numerals, and their descriptions may be omitted or simply repeated. Figure 9 It shows along Figure 10 The cross section shown is the section cut by line C-C'.

[0219] Combination Figure 9 Reference Figure 10 According to another embodiment of the present disclosure, the vibration device 131 may include a plurality of vibration generating portions 131A to 131D.

[0220] Multiple vibration generating portions 131A to 131D can be electrically disconnected and are arranged spaced apart from each other along a first direction X and a second direction Y. For example, the multiple vibration generating portions 131A to 131D can be arranged or laid flat on the same plane in an i×j configuration. Therefore, the vibration device 131 can be implemented with a large area based on the tiling of multiple vibration generating portions 131A to 131D having relatively small dimensions. For example, i can be the number of vibration generating portions arranged along the first direction X and can be a natural number of 2 or greater, and j can be the number of vibration generating portions arranged along the second direction Y and can be a natural number of 2 or greater, the same as or different from i. For example, the multiple vibration generating portions 131A to 131D can be arranged or laid flat in a 2×2 configuration, but embodiments of this disclosure are not limited thereto. Hereinafter, examples in which the vibration device 131 includes first vibration generating portions 131A to fourth vibration generating portions 131D will be described.

[0221] According to embodiments of this disclosure, the first vibration generating portion 131A and the second vibration generating portion 131B may be spaced apart from each other along a first direction X. The third vibration generating portion 131C and the fourth vibration generating portion 131D may be spaced apart from each other along the first direction X, and may be spaced apart from each of the first vibration generating portion 131A and the second vibration generating portion 131B along a second direction Y. The first vibration generating portion 131A and the third vibration generating portion 131C may be spaced apart from each other along the second direction Y so as to face each other. The second vibration generating portion 131B and the fourth vibration generating portion 131D may be spaced apart from each other along the second direction Y so as to face each other.

[0222] The first vibration generating portions 131A to the fourth vibration generating portions 131D can be disposed between the first cover member 131d and the second cover member 131e. For example, each of the first cover member 131d and the second cover member 131e can be connected to the first vibration generating portions 131A to the fourth vibration generating portions 131D, or can jointly support the first vibration generating portions 131A to the fourth vibration generating portions 131D, and thus the first vibration generating portions 131A to the fourth vibration generating portions 131D can be driven as a vibration device (or a single vibration device). For example, the first vibration generating portions 131A to the fourth vibration generating portions 131D can be laid flat at intervals by the cover members 131d and 131e, and thus can be driven as a vibration device (or a single vibration device).

[0223] According to the implementation of this disclosure, as referred to above... Figure 8 and Figure 9 As described, in order to achieve single-unit vibration or large-area vibration, the first vibration generating portion 131A to the fourth vibration generating portion 131D can be set (or tiled) at intervals SD1 and SD2 of 0.1 mm or greater and less than 3 cm along each of the first direction X and the second direction Y. More preferably, they can be set (or tiled) at intervals SD1 and SD2 of 0.1 mm or greater and less than 5 mm.

[0224] Each of the first vibration generating portion 131A to the fourth vibration generating portion 131D may include a vibration portion 131a, a first electrode portion 131b, and a second electrode portion 131c.

[0225] The vibration portion 131a of each of the first vibration generating portions 131A to the fourth vibration generating portions 131D may include a piezoelectric material (or an electroactive material) having a piezoelectric effect. The vibration portion 131a of each of the first vibration generating portions 131A to the fourth vibration generating portions 131D may be configured to be similar to the above-mentioned... Figure 6 and Figures 7A to 7D Any of the described vibration parts 131a are substantially the same, and therefore, the same reference numerals may refer to the same elements and their repeated descriptions may be omitted.

[0226] According to embodiments of this disclosure, each of the first vibration generating portion 131A to the fourth vibration generating portion 131D may include the above-mentioned reference. Figure 6 and Figures 7A to 7D The vibration portion 131a described may be any one of the vibration portions 131a, or may include different vibration portions 131a.

[0227] According to another embodiment of this disclosure, one or more of the first vibration generating portion 131A to the fourth vibration generating portion 131D may include the above-mentioned reference. Figure 6 and Figures 7A to 7D Different vibration portions 131a in the described vibration portion 131a.

[0228] The first electrode portion 131b can be disposed on the first surface of the corresponding vibrating portion 131a and electrically connected to the first surface of the vibrating portion 131a. The first electrode portion 131b can be referenced above... Figure 5 The first electrode portion 131b described is substantially the same; therefore, the same reference numerals can refer to the same elements, and their repeated descriptions can be omitted.

[0229] The second electrode portion 131c can be disposed on the second surface of the corresponding vibrating portion 131a and electrically connected to the second surface of the vibrating portion 131a. The second electrode portion 131c can be referenced above... Figure 5 The second electrode portion 131c described is substantially the same; therefore, the same reference numerals can refer to the same elements, and their repeated descriptions can be omitted.

[0230] According to embodiments of this disclosure, the first adhesive layer 131f and the second adhesive layer 131g may be connected or coupled to each other between the first vibration generating portions 131A to the fourth vibration generating portions 131D. Therefore, each of the first vibration generating portions 131A to the fourth vibration generating portions 131D may be surrounded by the first adhesive layer 131f and the second adhesive layer 131g. For example, the first adhesive layer 131f and the second adhesive layer 131g may be disposed between the first cover member 131d and the second cover member 131e to completely surround each of the first vibration generating portions 131A to the fourth vibration generating portions 131D. For example, each of the first vibration generating portions 131A to the fourth vibration generating portions 131D may be embedded or built into the first adhesive layer 131f and the second adhesive layer 131g.

[0231] According to another embodiment of the present disclosure, the vibration device 131 may further include a first power line PL1, a second power line PL2, and a pad portion 131p.

[0232] Apart from the electrical connection structure between the first power line PL1 and the second power line PL2 and the first vibration generating parts 131A to the fourth vibration generating parts 131D, the first power line PL1 and the second power line PL2 can be connected to the structure described above. Figure 8 and Figure 9The first power line PL1 and the second power line PL2 are basically the same, and therefore, the electrical connection structure between the first power line PL1 and the second power line PL2 and the first vibration generating part 131A to the fourth vibration generating part 131D will be briefly described below.

[0233] According to embodiments of this disclosure, the first power line PL1 may include a first upper power line PL11 and a second upper power line PL12 disposed along a second direction Y. For example, the first upper power line PL11 may be electrically connected to a first electrode portion 131b disposed in a first row parallel to the second direction Y of the first vibration generating portion 131A and the third vibration generating portion 131C (or the first group or the first vibration generating group) located in a first row. The second upper power line PL12 may be electrically connected to a first electrode portion 131b disposed in a second row parallel to the second direction Y of the first vibration generating portion 131A and the fourth vibration generating portion 131D (or the second group or the second vibration generating group) located in a second row.

[0234] According to embodiments of this disclosure, the second power line PL2 may include a first lower power line PL21 and a second lower power line PL22 disposed along a second direction Y. For example, the first lower power line PL21 may be electrically connected to a second electrode portion 131c disposed in a first row parallel to the second direction Y of the first vibration generating portion 131A and the third vibration generating portion 131C (or the first group or the first vibration generating group) located in a first row. The second lower power line PL22 may be electrically connected to a second electrode portion 131c disposed in a second row parallel to the second direction Y of the first vibration generating portion 131A and the fourth vibration generating portion 131D (or the second group or the second vibration generating group) located in a second row.

[0235] The pad portion 131p can be configured at a peripheral portion of either the first cover member 131d or the second cover member 131e to be electrically connected to one side (or one end) of each of the first power line PL1 and the second power line PL2. The pad portion 131p can be... Figure 8 and Figure 9 The pad portion 131p shown is essentially the same; therefore, the same reference numerals can refer to the same components, and their repeated descriptions can be omitted.

[0236] As described above, the vibration device 131 according to another embodiment of this disclosure may have the same characteristics as described above. Figures 4 to 8The vibration device 131 described has the same effect, therefore, its repeated description can be omitted.

[0237] Figure 11 This is a perspective view of a device according to another embodiment of the present disclosure. Figure 12 It is along Figure 11 The cross-sectional view taken by line D-D' is shown. Figure 11 An apparatus according to another embodiment of the present disclosure is shown, and modifications are also shown. Figure 1 and Figure 2 The implementation method is based on the structure of the vibrating component. Therefore, in the following description, repeated descriptions of other components besides the vibrating component, the vibrating device, and related elements can be omitted.

[0238] Reference Figure 11 and Figure 12 According to another embodiment of this disclosure, the vibrating member 110 may include a flat portion and a zigzag portion. The flat portion may include a portion of the vibrating member 110 that is implemented as flat, and the zigzag portion may include at least a portion of the vibrating member 110 that is zigzag into a concave or convex shape. The flat portion may include one or more flat portions 110a1, and the zigzag portion may include one or more concave curved portions 110a2 and one or more convex curved portions 110a3.

[0239] According to another embodiment of this disclosure, the device 20 may include a first region to a fourth region. For example, a concave curved portion 110a2 may be disposed in the first region of the device 20, a flat portion 110a1 may be disposed in the second region of the device 20, a concave curved portion 110a2 may be disposed in the third region of the device 20, and a convex curved portion 110a3 may be disposed in the fourth region of the device 20.

[0240] According to another embodiment of this disclosure, device 20 may include a left region (or first region) LA, a first central region (or second region or second-1 region) CA1, a second central region (or third region or second-2 region) CA2, and a right region (or fourth region) RA. For example, a convex curved portion 110a3 may be configured in the left region LA of device 20, a flat portion 110a1 may be configured in the first central region CA1 of device 20, a concave curved portion 110a2 may be configured in the second central region CA2 of device 20, and a convex curved portion 110a3 may be configured in the right region RA of device 20. Alternatively, a concave curved portion 110a2 may be configured in the left region LA of device 20, a flat portion 110a1 may be configured in the first central region CA1 of device 20, a convex curved portion 110a3 may be configured in the second central region CA2 of device 20, and a concave curved portion 110a2 may be configured in the right region RA of device 20. Alternatively, the concave curved portion 110a2 can be disposed in the left region LA of the device 20, the flat portion 110a1 can be disposed in the first central region CA1 of the device 20, the concave curved portion 110a2 can be disposed in the second central region CA2 of the device 20, and the convex curved portion 110a3 can be disposed in the right region RA of the device 20. Alternatively, the convex curved portion 110a3 can be disposed in the left region LA of the device 20, the flat portion 110a1 can be disposed in the first central region CA1 of the device 20, the convex curved portion 110a3 can be disposed in the second central region CA2 of the device 20, and the concave curved portion 110a2 can be disposed in the right region RA of the device 20. Therefore, the combination of the flat and curved portions of the vibration member 110 according to the embodiments of this disclosure is not limited to this, and the arrangement relationship between the flat portion 110a1, the concave curved portion 110a2, and the convex curved portion 110a3 can be combined differently.

[0241] The vibrating member 110 may further include a first inflection point line IL1 between the flat portion 110a1 and the concave curved portion 110a2, a second inflection point line IL2 between the concave curved portion 110a2 and the convex curved portion 110a3, and a third inflection point line IL3 between the flat portion 110a1 and the convex curved portion 110a3. The first inflection point line IL1, the second inflection point line IL2, and the third inflection point line IL3 may be located at positions where the vibrating member 110 is bent or where the slope of the vibrating member 110 changes.

[0242] Figure 13 A variable curvature structure of a vibrating member according to an embodiment of the present disclosure is shown. Figure 14 It is along Figure 13The cross-sectional view taken by line E-E' is shown. Figure 13 and Figure 14 A variable curvature structure of a vibrating member according to an embodiment of the present disclosure is shown.

[0243] Reference Figure 13 and Figure 14 The variable curvature structure according to the embodiments of the present disclosure may include a vibrating member 110 and a variable curvature layer 160 disposed on one surface of the vibrating member 110, and the vibrating device 130 may be disposed on the rear surface of the variable curvature layer 160.

[0244] The variable curvature layer 160 according to embodiments of the present disclosure may include a variable curvature portion 161 and a protective member 163 covering the variable curvature portion 161.

[0245] Furthermore, the variable curvature structure according to embodiments of this disclosure may include a variable curvature portion 161 and a variable curvature layer controller (or variable curvature circuit) 165 for applying a direct current (DC) voltage to the vibrating member 110. The variable curvature circuit 165 may supply the vibrating member 110 with a first polarity signal of a first variable signal output from a first output terminal T1, and a second polarity signal of a second variable signal output from a second output terminal T2 may be supplied to the variable curvature portion 161 via a flexible cable FC. The first polarity signal may be a positive (+) voltage, and the second polarity signal may be a negative (-) voltage, or vice versa. Furthermore, since the variable curvature portion 161 is used to cause contraction or expansion of the variable curvature portion 161, rather than as an element for generating vibration, both the first and second polarity signals supplied by the variable curvature layer controller 165 may be DC voltages, rather than alternating current (AC) voltages. Moreover, the DC voltage should be maintained to keep the variable curvature portion 161 in a contracted or expanded state.

[0246] When an electric field based on the first polarity signal and the second polarity signal is applied in the same direction as the downward direction of the variable curvature portion 161, the variable curvature layer can change to a convex shape relative to the vibrating member 110. When an electric field based on the first polarity signal and the second polarity signal is applied in a direction different from the downward direction of the variable curvature portion 161, the variable curvature layer can change to a concave shape relative to the vibrating member 110.

[0247] The variable curvature portion 161 may include a piezoelectric material (or electroactive material) incorporating a piezoelectric effect. For example, a piezoelectric material may have the property that when pressure or twisting (or bending) is applied to the crystal structure by an external force, a potential difference is generated due to dielectric polarization (or polarization) caused by the change in the relative positions of positive (+) ions and negative (-) ions, and vibrations are generated by an electric field based on the reverse voltage applied thereto.

[0248] The protective member 163 may be a polyimide (PI) film or a polyethylene terephthalate (PET) film, but the embodiments of this disclosure are not limited thereto.

[0249] Furthermore, the variable curvature structure or variable curvature layer 160 may also include an adhesive layer or connecting member between the variable curvature portion 161 and the vibrating member 110. Alternatively, the protective member 163 may be formed to protect and surround the variable curvature portion 161. When the protective member 163 has certain adhesive properties, the adhesive layer or connecting member between the variable curvature portion 161 and the vibrating member 110 may be omitted.

[0250] According to another embodiment of this disclosure, in the device 30 with the structure of the variable curvature layer 160, the vibration member 110 may be configured to include a conductive material so as to apply a first polarity signal from the variable curvature layer controller 165 to the vibration member 110.

[0251] Figure 15A and Figure 15B It is an application Figure 13 A cross-sectional view of a device with a variable curvature layer. Figure 15 shows a device according to another embodiment of the present disclosure, and illustrates... Figure 13 and Figure 14 The structure of the variable curvature layer was added to Figure 1 and Figure 2 The implementation of the device. Therefore, in the following description, repeated descriptions of other elements besides the vibrating member, the variable curvature layer, the vibrating device, and related elements can be omitted.

[0252] Reference Figure 14 and Figure 15A According to another embodiment of the present disclosure, the device 30 may include a first variable curvature layer to a third variable curvature layer 160-1, 160-2 and 160-3.

[0253] According to another embodiment of this disclosure, a first variable curvature layer 160-1 can be disposed at the flat portion 110a1 and between the first vibration device 131-1 and the vibration member 110. A second variable curvature layer 160-2 can be disposed at the concave curved portion 110a2 and between the second vibration device 131-2 and the vibration member 110. A third variable curvature layer 160-3 can be disposed at the convex curved portion 110a3 and between the third vibration device 131-3 and the vibration member 110.

[0254] According to another embodiment of this disclosure, the variable curvature layer controller 165 can be disposed at any position in the receiving space 150s of the housing 150, or can be mounted on the second surface of the housing 150. The first output terminal T1 of the variable curvature layer controller 165 can apply a first polarity signal to the vibrating member 110, and the second output terminal T2 can apply a second polarity signal opposite to the first polarity signal to the first vibration device 131-1 to the third vibration device 131-3.

[0255] According to embodiments of this disclosure, the initial state of the vibrating member 110 can be configured to include only a single flat portion, and then the bending or slope of the vibrating member 110 can be varied based on the operation of the variable curvature layer 160.

[0256] therefore, Figure 15A and Figure 15B The device 30 can be a diagram in a state where the variable curvature layer 160 is driven.

[0257] The first variable curvature layer 160-1 can be disposed at the flat portion 110a1 of the left region LA, the second variable curvature layer 160-2 can be disposed at the concave curved portion 110a2 of the central region CA, and the third variable curvature layer 160-3 can be disposed at the convex curved portion 110a3 of the right region RA. The variable curvature portion 161 of each of the second variable curvature layer 160-2 and the third variable curvature layer 160-3 can have opposite polling directions, such that the concave curved portion 110a2 and the convex curved portion 110a3 of the vibrating member 110 vary to have different slopes or bending states.

[0258] When the variable curvature portion 161 of the second variable curvature layer 160-2 is exposed to an electric field and the variable curvature portion 161 has the same polling direction as the electric field, the variable curvature portion 161 can be configured to expand, and the state of the vibrating member 110 corresponding to the second variable curvature layer 160-2 remains almost unchanged. Therefore, the vibrating member 110 with the second variable curvature layer 160-2 can be changed to a concave shape.

[0259] The variable curvature portion 161 of the third variable curvature layer 160-3, which has a polling direction different from that of the variable curvature portion 161 of the second variable curvature layer 160-2, can be exposed to an electric field having a direction opposite to the polling direction. The variable curvature portion 161 can be configured to contract, and the state of the vibrating member 110 corresponding to the third variable curvature layer 160-3 remains almost unchanged. Therefore, the vibrating member 110 provided with the third variable curvature layer 160-3 can be transformed into a convex shape.

[0260] Furthermore, assuming that the curvature of the vibrating member 110 remains constant, the flat portion 110a1 of the left region LA can be configured such that a second variable signal is not supplied from the variable curvature layer controller 165.

[0261] Apart from the change in the inclination state of the vibrating components in the central region CA and the left region RA, Figure 15B Can be with Figure 15A The equipment is the same.

[0262] Combination Figure 15A Reference Figure 15B It can be seen that the central region CA of the vibrating member 110 changes from the concave curved portion 110a2 to the convex curved portion 110a3, and the right region RA of the vibrating member 110 changes from the convex curved portion 110a3 to the concave curved portion 110a2. Referring to this, it can be seen that when applied to… Figure 15A The electric field of the vibrating member 110 and the variable curvature layer 160 has the same electric field as that applied to the vibrating member 110 and the variable curvature layer 160. Figure 15B The electric fields of the vibrating member 110 and the variable curvature layer 160 are in opposite directions.

[0263] exist Figure 15A and Figure 15B In the device 30, when the difference between the first polarity signal of the first variable signal and the second polarity signal of the second variable signal applied to the vibrating member 110 and the variable curvature layer 160 is adjusted to be relatively large, the bending degree or slope of the curved portion of the vibrating member 110 will increase.

[0264] Figure 16A and Figure 16B It is a cross-sectional view of a device that uses a curvature change mechanism. Figure 16A and Figure 16B An apparatus according to another embodiment of the present disclosure is shown, and the structure of the curvature changing device is shown to be added to... Figure 1 and Figure 2 The implementation of the device is described below. Therefore, in the following description, repeated descriptions of other elements besides the vibrating member, the variable curvature layer, the vibrating device, and related components are omitted.

[0265] Reference Figure 16A and Figure 16B According to another embodiment of the present disclosure, the device 40 may further include a curvature changing device 170 disposed in the receiving space 150s of the housing 150.

[0266] According to embodiments of this disclosure, the curvature changing device 170 may include: a support portion 171 (also referred to as a fixed portion) supported by a bottom portion 151 of a housing 150; a first rotary link portion 172a fixed at one end (or one side) to the support portion 171; a pivot portion 173 disposed at the other end (or another side) of the first rotary link portion 172a, and connecting or coupling the other end (or another side) of the first rotary link portion 172a to one end (or one side) of a second rotary link portion 172b; and a support portion 174 fixed to a vibration member 110. The other end (or another side) of the second rotary link portion 172b may be connected or coupled to the support portion 174.

[0267] The pivot portion 173 can couple the first rotary link portion 172a to the second rotary link portion 172b. The first rotary link portion 172a and the second rotary link portion 172b can perform an engagement operation, and both the first rotary link portion 172a and the second rotary link portion 172b can be configured to rotate within the pivot portion 173. The support portion 174 can be attached to or coupled to at least a portion of the second surface 110b of the vibrating member 110. The support portion 174 can be fixed to at least a portion of the second surface 110b of the vibrating member 110, or it can be slidably driven. When the support portion 174 is slidably driven on the second surface 110b of the vibrating member 110, the position of the support portion 174 can be changed.

[0268] According to another embodiment of this disclosure, the initial state of the vibrating member 110 can be configured to include only a single flat portion, and then the bending or slope of the vibrating member 110 can be varied based on the operation of the curvature changing device 170.

[0269] According to another embodiment of this disclosure, the device 40 may further include a control board, and the control board may be configured such that the vibration drive signal of the demultiplexer and sound processing circuit 171 of the vibration device 130 is synchronized with the change signal of the curvature variable layer controller 165 of the curvature variable layer 160. Therefore, in Figure 16A and Figure 16B In the case of changes in the bending degree or curvature of the vibrating member 110, the vibration drive signal based on the demultiplexer of the vibration device 130 and the sound processing circuit 171 can be operated accordingly.

[0270] Figure 16AThis is a diagram showing the curvature changing device after the vibrating member 110 is driven in its initial state, which includes only the flat portion. In the vibration device 40 of Figure 16, an embodiment is described in which the bending degree of the vibrating member 110 in the right region RA and the central region CA changes as the curvature changing device is driven in the initial state, which includes only the flat portion. Figure 16B Among the vibration devices 40, the following is described Figure 16A The bending state of the vibrating member 110 is the implementation of the initial state.

[0271] Reference Figure 16A The curvature changing device 170 provided in the left region LA of the vibrating member 110 may not be driven. The curvature changing device 170 provided in the central region CA of the vibrating member 110 may be configured such that the flat portion of the vibrating member 110 forms a concave curved portion 110a2, and the curvature changing device 170 provided in the left region LA of the vibrating member 110 may be configured such that the flat portion of the vibrating member 110 forms a convex curved portion 110a3.

[0272] Reference Figure 16B The curvature changing device 170 provided in the left region LA of the vibrating member 110 may not be driven. The curvature changing device 170 provided in the central region CA of the vibrating member 110 may be configured such that the flat portion of the vibrating member 110 forms a convex curved portion 110a3, and the curvature changing device 170 provided in the left region LA of the vibrating member 110 may be configured such that the flat portion of the vibrating member 110 forms a concave curved portion 110a2.

[0273] Figures 17 to 19 The frequency sound pressure level output characteristics of the vibrating member with respect to the shape of the flat section, the concave curved section, and the convex curved section are shown.

[0274] Sound output characteristics can be measured using sound analysis equipment. Sound output characteristics have been measured using B&K audio measurement equipment. The sound analysis equipment may include: a sound card that sends or receives sound from a control PC; an amplifier that amplifies the signal generated by the sound card and transmits the amplified signal to the vibration device; and a microphone that collects the sound generated by the vibration device in the display panel. For example, the microphone may be positioned at the center of the vibration device, and the distance between the display panel and the microphone may be 30 cm. Sound can be measured with the microphone perpendicular to the vibration device. The sound collected by the microphone can be input to the control PC via the sound card, and the control program can examine the input sound to analyze the sound from the vibration device. For example, the frequency response characteristics corresponding to a frequency range of 100 Hz to 20 kHz can be measured using a pulse program.

[0275] exist Figure 17 In the diagram, the horizontal axis represents the frequency in Hertz (Hz), and the vertical axis represents the sound pressure level (SPL) in decibels (dB).

[0276] Figure 17 The thin solid line indicates when the reference above is... Figure 2 The measurements are described when one vibration device 131 is positioned on the second surface 110b of the vibration member 110, which includes a flat portion. A thick dashed line represents the measurement results when three vibration devices 131 are positioned under the same conditions. A thick dashed line represents the measurement results when five vibration devices 131 are positioned under the same conditions. A thick solid line represents the measurement results when ten vibration devices 131 are positioned under the same conditions. A voltage of 5 Vrms has been applied in the same manner. Figures 17 to 19Measurement results are shown when an organic light-emitting display panel is configured. For example, an organic light-emitting display panel may include an anode electrode, a cathode electrode, and light-emitting devices. The light-emitting devices may include a light-emitting device layer formed on the anode electrode. The light-emitting device layer may be configured to emit light of the same color for each pixel (e.g., white light), or may be configured to emit light of different colors for each pixel (e.g., red, green, or blue light). In a stacked structure comprising two or more structures having the same color or one or more different colors, a charge generation layer may be further disposed between the two or more structures. The charge generation layer may have a PN junction structure and may include an N-type charge generation layer or a P-type charge generation layer. Sound output characteristics were measured in a device configured with two stacked structures and a charge generation layer disposed between the two stacked structures. Each of the two stacked structures may be configured with a hole injection layer, a hole transport layer, a light-emitting layer, an electron transport layer, and an electron injection layer disposed between the anode and cathode electrodes, but embodiments of this disclosure are not limited thereto. A capping layer may be further disposed on the cathode electrode. The light-emitting layer may be configured to emit red, green, and blue light for each pixel.

[0277] Reference Figure 17 In the thin solid line (Example 1), the average sound pressure level was measured as 46.7 dB in the frequency range of 300 Hz to 1000 Hz, 51.9 dB in the frequency range of 1000 Hz to 8000 Hz, 50.0 dB in the frequency range of 300 Hz to 8000 Hz, and 52.6 dB in the frequency range of the full-tone vocal band of 200 Hz to 20000 Hz.

[0278] In the thick dashed line (Example 2), the average sound pressure level was measured as 56.6 dB in the frequency range of 300 Hz to 1000 Hz, 65.9 dB in the frequency range of 1000 Hz to 8000 Hz, 62.5 dB in the frequency range of 300 Hz to 8000 Hz, and 64.6 dB in the frequency range of the full-tone vocal band of 200 Hz to 20000 Hz.

[0279] In the thick dashed line (Example 3), the average sound pressure level (SPL) is measured to be 59.6 dB in the frequency range of 300 Hz to 1000 Hz, 67.0 dB in the frequency range of 1000 Hz to 8000 Hz, 64.3 dB in the frequency range of 300 Hz to 8000 Hz, and 66.6 dB in the frequency range of the full-tone vocal band of 200 Hz to 20000 Hz.

[0280] In the thick solid line (Example 4), the average sound pressure level was measured as 63.2 dB in the frequency range of 300 Hz to 1000 Hz, 67.6 dB in the frequency range of 1000 Hz to 8000 Hz, 66.0 dB in the frequency range of 300 Hz to 8000 Hz, and 68.1 dB in the frequency range of the full-tone vocal band of 200 Hz to 20000 Hz.

[0281] based on Figure 17 Based on the frequency sound pressure level measurement results, when the vibrating member is configured to include only a flat portion, and the number of vibrating devices provided on the rear surface 110b of the vibrating member 110 increases, it can be seen that the sound pressure level output characteristics are enhanced across the full-tone vocal bands, including the low-pitched, mid-pitched, and high-pitched vocal bands. For example, in an embodiment where the vibrating member includes a flat portion, it can be seen that the sound pressure level characteristics of the high-pitched vocal bands are enhanced compared to the case where the vibrating member includes only a flat portion. For example, in an embodiment where the vibrating member includes a flat portion, it can be seen that the sound pressure level characteristics of the full-tone vocal bands are enhanced compared to the case where the vibrating member includes only a flat portion.

[0282] Figure 18 The thin solid line indicates when the reference above is... Figure 2 The measurement results are described when a vibration device 131 is set at the second surface 110b of a vibration member 110 including concave and convex portions. The thick dashed line represents the measurement results when three vibration devices 131 are set under the same conditions, the thick dashed line represents the measurement results when five vibration devices 131 are set under the same conditions, and the thick solid line represents the measurement results when ten vibration devices 131 are set under the same conditions.

[0283] Reference Figure 18The thin solid line (Example 5) indicates that the average sound pressure level was measured as 55.6 dB in the frequency range of 300 Hz to 1000 Hz, 67.9 dB in the frequency range of 1000 Hz to 8000 Hz, 63.4 dB in the frequency range of 300 Hz to 8000 Hz, and 64.8 dB in the frequency range of the full-tone vocal band of 200 Hz to 20000 Hz.

[0284] The thick dashed line (Example 6) indicates that the average sound pressure level was measured as 60.4 dB in the frequency range of 300 Hz to 1000 Hz, 78.0 dB in the frequency range of 1000 Hz to 8000 Hz, 71.6 dB in the frequency range of 300 Hz to 8000 Hz, and 72.6 dB in the frequency range of the full-tone vocal band of 200 Hz to 20000 Hz.

[0285] The thick dashed line (Example 7) indicates that the average sound pressure level was measured as 63.8 dB in the frequency range of 300 Hz to 1000 Hz, 77.4 dB in the frequency range of 1000 Hz to 8000 Hz, 71.4 dB in the frequency range of 300 Hz to 8000 Hz, and 73.7 dB in the frequency range of the full-tone vocal band of 200 Hz to 20000 Hz.

[0286] The thick solid line (Example 8) indicates that the average sound pressure level was measured as 63.8 dB in the frequency range of 300 Hz to 1000 Hz, 80.9 dB in the frequency range of 1000 Hz to 8000 Hz, 74.7 dB in the frequency range of 300 Hz to 8000 Hz, and 76.5 dB in the frequency range of the full-tone vocal band of 200 Hz to 20000 Hz.

[0287] based on Figure 18 The frequency sound pressure level measurement results show that, when the vibrating member is configured to include only concave and convex portions, and the number of vibrating devices provided on the rear surface 110b of the vibrating member 110 increases, the sound pressure level output characteristics are enhanced in the full-tone vocal band, including the low-pitched vocal band, the mid-pitched vocal band, and the high-pitched vocal band.

[0288] and Figure 17 Compared to a thick dashed line, in Figure 18Within the thin solid line, the average sound pressure level increased by 0.6 dB in the frequency range of 300 Hz to 1000 Hz, by 13.3 dB in the frequency range of 1000 Hz to 8000 Hz, by 8.7 dB in the frequency range of 300 Hz to 8000 Hz, and by 8.4 dB in the frequency range of the full-tone vocal band of 200 Hz to 20000 Hz.

[0289] Therefore, refer to Figure 17 and Figure 18 Compared to a vibrating member with a flat portion, when the vibrating device 131 is provided in the concave curved portion 110a2 of the vibrating member, it can be seen that the sound pressure level is greatly enhanced in the frequency range of 1000Hz to 8000Hz (e.g., the frequency of the high-pitched vocal cords).

[0290] exist Figure 19 In the middle, the thin solid line indicates that when the reference above is... Figure 2 The measurement results are described when one vibration device 131 is disposed on the second surface 110b of the vibration member 110 including the concave and convex portions. The thick dashed line represents the measurement results when one vibration device 131 is disposed on the second surface 110b of the vibration member 110 including the concave curved portion. The thick dashed line represents the measurement results when three vibration devices 131 are disposed on the second surface 110b of the vibration member 110 including the concave curved portion. The thick solid line represents the measurement results when the voltage of the vibration drive signal applied to the vibration device changes from 5Vrms to 10Vrms under the same conditions as the thick dashed line.

[0291] exist Figure 19 In the middle, the thin solid line indicates the intersection with... Figure 17 Data under the same conditions as in Example 1, the thick dashed line indicates that under the same conditions as... Figure 18 The data is under the same conditions as in Example 5, and the thick dashed line indicates that it is in the same condition as in Example 5. Figure 18 Example 6 shows data under the same conditions.

[0292] The thick solid line (Example 9) indicates that the average sound pressure level was measured as 66.6 dB in the frequency range of 300 Hz to 1000 Hz, 84.1 dB in the frequency range of 1000 Hz to 8000 Hz, 77.7 dB in the frequency range of 300 Hz to 8000 Hz, and 78.7 dB in the frequency range of the full-tone vocal band of 200 Hz to 20000 Hz.

[0293] Figure 20 The bar chart shows Figure 19 The measurement results. Figure 20It is shown Figure 19 A bar graph of the measurement results. Figure 20 The average sound pressure level values ​​for each interval of Examples 1, 5, 6, and 9 are shown. Figure 20 In each example, the left bar represents the average sound pressure level in the frequency range of 300 Hz to 8000 Hz, the middle bar represents the average sound pressure level in the frequency range of 200 Hz to 20000 Hz, and the right bar represents the average sound pressure level in the frequency range of 1000 Hz to 8000 Hz.

[0294] Reference Figure 20 Compared to Example 1, in Example 5, the average sound pressure level increases by 16.0 dB in the frequency range of 1000 Hz to 8000 Hz. Compared to Example 5, in Example 6, the average sound pressure level increases by 10.1 dB in the frequency range of 1000 Hz to 8000 Hz. Compared to Example 6, in Example 9, the average sound pressure level increases by 6.1 dB in the frequency range of 1000 Hz to 8000 Hz.

[0295] When the vibrating member 110 is provided with a concave bending portion, based on Figures 17 to 20 The combination of frequency sound pressure level characteristics increases the sound pressure level of the mid-to-high pitch vocal cords, and the sound pressure level is further increased when the voltage of the vibration drive signal applied to the vibration device changes from 5Vrms to 10Vrms. When multiple vibration devices 131 are arranged on the rear surface 110b of the vibration member 110, it can be seen that the sound pressure level output characteristics are increased proportionally to the number of vibration devices 131.

[0296] Figure 21 A vehicle device according to another embodiment of the present disclosure is shown. Figure 22 A vehicle device according to another embodiment of the present disclosure is shown. Figure 23 The setting is shown Figure 21 and Figure 22 Vibration generating devices near the driver's seat and the front passenger seat. Figure 24 The setting is shown Figure 21 and Figure 22 Each of the doors and windows is located in or set in Figure 21 and Figure 22 Vibration generating devices at every point in the doors and windows. Figure 25 The setting is shown Figure 21 and Figure 22 In the roof panel or set in Figure 21 and Figure 22 Vibration generating equipment at the roof panel of the vehicle. Figure 26 The setting is shown Figure 21 and Figure 22Each of the roof panels, windows, and seats is located in or set in Figure 21 and Figure 22 Vibration generating devices in every part of the roof panel, windows, and seats.

[0297] Reference Figures 21 to 26 According to another embodiment of this disclosure, the vehicle equipment may include a first vibration generating device 550-1 configured to output sound in the outer material 520 and the inner material 530. For example, the first vibration generating device 550-1 may be disposed in or at the outer material 520 or the inner material 530, or between the outer material 520 and the inner material 530, to output sound. For example, the first vibration generating device 550-1 may be disposed in or at one or more of the outer material 520, the inner material 530, and the region between the outer material 520 and the inner material 530, to output sound. For example, one or more of the outer material 520 and the inner material 530 may output sound based on the vibration of one or more vibration devices.

[0298] The first vibration generating device 550-1 may include at least one or more vibration devices 550A to 550G, which are disposed between the main structure (or external material) and one or more of the following materials: dashboard interior material 530A, pillar interior material 530B, roof interior material 530C, door interior material 530D, seat interior material 530E, handle interior material 530F, and floor interior material 530G. For example, the first vibration generating device 550-1 may include at least one or more of the first vibration device 550A to the seventh vibration device 550G, and may output sound through one or more channels via one or more vibration devices. For example, one or more of the first vibration device 550A to the seventh vibration device 550G may be configured to be transparent or translucent. For example, when the window is completely transparent, one or more of the first vibration device 550A to the seventh vibration device 550G may be configured to be transparent and may be disposed in the central or peripheral area of ​​the window. When the window includes a semi-transparent or opaque portion, one or more of the first vibration device 550A to the seventh vibration device 550G can be configured to be semi-transparent or opaque, and can be disposed in the semi-transparent or opaque portion of the window. For example, one or more of the first vibration device 550A to the seventh vibration device 550G can be referred to as a transparent vibration generator, a transparent vibration generating device, or a transparent sound generating device, but the embodiments of this disclosure are not limited thereto.

[0299] Reference Figures 21 to 23 According to embodiments of this disclosure, a first vibration device 550A can be disposed between the instrument panel 530A and the front bulkhead, and can be configured to indirectly or directly vibrate the instrument panel 530A to output sound. For example, the first vibration device 550A may include the above-mentioned reference... Figures 1 to 20 The vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. For example, the first vibration device 550A may be referred to by terms such as dashboard speaker or first speaker, but embodiments of this disclosure are not limited thereto.

[0300] According to embodiments of the present disclosure, at least one or more of the front bulkhead and instrument panel 530A may include a first region corresponding to the driver's seat DS, a second region corresponding to the passenger seat FPS, and a third region (or intermediate region) between the first and second regions. At least one or more of the front bulkhead and instrument panel 530A may also include a fourth region that is angled to face the passenger seat FPS. According to embodiments of the present disclosure, a first vibration device 550A may be configured to vibrate at least one or more of the first to fourth regions of the instrument panel 530A. For example, the first vibration device 550A may be located at each of the first and second regions of the instrument panel 530A, or it may be located at each of the first to fourth regions of the instrument panel 530A. For example, the first vibration device 550A may be located at each of the first and second regions of the instrument panel 530A, or it may be located at at least one or more of the first to fourth regions of the instrument panel 530A. For example, the first vibration device 550A may be configured to output a sound from about 150 Hz to about 20 kHz. For example, a first vibration device 550A configured to cause vibration in at least one or more of the first to fourth regions of the instrument panel 530A may have the same or different sound output characteristics.

[0301] According to embodiments of this disclosure, a second vibration device 550B can be disposed between the internal material 530B of the support column and the support column panel, and can be configured to indirectly or directly vibrate the internal material 530B of the support column to output sound. For example, the second vibration device 550B may include the above-mentioned reference. Figures 1 to 20 The vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. The second vibration device 550B may be referred to by terms such as pillar loudspeaker, tweeter, or second loudspeaker, but embodiments of this disclosure are not limited thereto.

[0302] According to embodiments of this disclosure, the pillar panel may include a first pillar (or pillar A) disposed on both sides of the front windshield, a second pillar (or pillar B) disposed on both sides of the center of the vehicle body, and a third pillar (or pillar C) disposed on both sides of the rear of the vehicle body. The pillar interior material 530B may include a first pillar interior material 530B1 covering the first pillar, a second pillar interior material 530B2 covering the second pillar, and a third pillar interior material 530B3 covering the third pillar. According to embodiments of this disclosure, a second vibration device 550B may be disposed at at least one or more of the following regions: the region between the first pillar and the first pillar interior material 530B1, the region between the second pillar and the second pillar interior material 530B2, and the region between the third pillar and the third pillar interior material 530B3; and thus may vibrate at least one or more of the first pillar interior materials 530B1 to the third pillar interior materials 530B3. For example, the second vibration device 550B can be configured to output sound from about 2 kHz to about 20 kHz, but embodiments of this disclosure are not limited thereto. For example, the second vibration device 550B can be configured to output sound from about 150 Hz to about 20 kHz. For example, the second vibration device 550B, configured to vibrate at least one or more of the internal materials of the first pillar 530B1 to the internal materials of the third pillar 530B3, can have the same sound output characteristics or different sound output characteristics.

[0303] Reference Figure 22 , Figure 25 and Figure 26 According to embodiments of this disclosure, the third vibration device 550C can be disposed between the roof panel and the interior roof material 530C, and can be configured to directly or indirectly vibrate the interior roof material 530C to output sound. For example, the third vibration device 550C can be configured to be transparent or translucent. For example, the third vibration device 550C may include the above-mentioned reference... Figures 1 to 20 The vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. For example, the third vibration device 550C may be referred to as a roof speaker or a third speaker, but the embodiments of this disclosure are not limited thereto.

[0304] According to embodiments of this disclosure, at least one or more of the roof panel and the interior roof material 530C covering the roof panel may include a first region corresponding to the driver's seat DS, a second region corresponding to the passenger seat FPS, a third region corresponding to the region between the driver's seat DS and the passenger seat FPS, a fourth region corresponding to the first rear seat RPS1 behind the driver's seat DS, a fifth region corresponding to the second rear seat RPS2 behind the passenger seat FPS, a sixth region corresponding to the region between the first rear seat RPS1 and the second rear seat RPS2, and a seventh region between the third and sixth regions. For example, a third vibration device 550C may be configured to vibrate at least one or more of the first to seventh regions of the interior roof material 530C. For example, the third vibration device 550C may be configured to output sound from about 150 Hz to about 20 kHz. For example, the third vibration device 550C configured to vibrate at least one or more of the first to seventh regions of the interior roof material 530C may have the same or different sound output characteristics. For example, the third vibration device 550C configured to vibrate each of the first to seventh regions of the roof interior material 530C can have the same or different sound output characteristics. For example, at least one or more third vibration devices 550C configured to vibrate at least one of the first to seventh regions of the roof interior material 530C can be configured to output sound from about 2 kHz to about 20 kHz, and other third vibration devices 550C can be configured to output sound from about 150 Hz to about 20 kHz. For example, at least one or more third vibration devices 550C configured to vibrate each of the first to seventh regions of the roof interior material 530C can be configured to output sound from about 2 kHz to about 20 kHz, and other third vibration devices 550C can be configured to output sound from about 150 Hz to about 20 kHz.

[0305] Reference Figures 21 to 24 According to embodiments of this disclosure, the fourth vibration device 550D can be disposed between the door frame and the interior door material 530D, and can be configured to indirectly or directly vibrate the interior door material 530D to output sound. For example, the fourth vibration device 550D may include the above-mentioned reference... Figures 1 to 20 The vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. For example, the fourth vibration device 550D may be referred to by terms such as a car door speaker or a fourth speaker, but the embodiments of this disclosure are not limited thereto.

[0306] According to embodiments of this 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 in the height direction Z relative to the device 20. For example, a fourth vibration device 550D may be disposed at at least one or more of the upper, middle, and lower regions between the door frame and the door interior material 530D, and thus, at least one or more of the upper, middle, and lower regions of the door interior material 530D can be vibrated.

[0307] According to embodiments of this disclosure, the upper region of the interior material 530D of the vehicle door may include a curved portion with a relatively small radius of curvature. A fourth vibration device 550D for vibrating the upper region of the interior material 530D of the vehicle door may have a second portion 131a2, which has the above-mentioned reference... Figures 1 to 20 The described vibration equipment Figures 7A to 7D The flexibility of one or more of the vibration devices 131 shown, and therefore, the bending into a certain shape (equiangular shape or conformal shape) based on the shape (or surface shape) of the curved portion of the upper region of the interior material 530D of the door.

[0308] According to embodiments of this disclosure, the door frame may include a first door frame (or left front door frame), a second door frame (or right front door frame), a third door frame (or left rear door frame), and a fourth door frame (or right rear door frame). According to embodiments of this disclosure, the door interior material 530D may include a first door interior material (or left front door interior material) 530D1 covering the first door frame, a second door interior material (or right front door interior material) 530D2 covering the second door frame, a third door interior material (or left rear door interior material) 530D3 covering the third door frame, and a fourth door interior material (or right rear door interior material) 530D4 covering the fourth door frame. For example, the fourth vibration device 550D may be disposed at at least one or more of the upper, middle and lower regions between each of the first to fourth door frames and the first to fourth door interior materials 530D1 to 530D4, and may vibrate at least one or more of the upper, middle and lower regions of each of the first to fourth door interior materials 530D1 to 530D4.

[0309] According to embodiments of this disclosure, a fourth vibration device 550D, configured to vibrate the upper region of each of the first door interior materials 530D1 to the fourth door interior materials 530D4, can be configured to output sound from about 2 kHz to about 20 kHz, or can be configured to output sound from about 150 Hz to about 20 kHz. For example, a fourth vibration device 550D, configured to vibrate the upper region of at least one or more of the first door interior materials 530D1 to the fourth door interior materials 530D4, can be configured to output sound from about 2 kHz to about 20 kHz, or can be configured to output sound from about 150 Hz to about 20 kHz.

[0310] According to embodiments of this disclosure, a fourth vibration device 550D, configured to vibrate at least one or more of the middle and / or lower regions of the interior materials 530D1 to 530D4 of the first to fourth doors, can be configured to output sound from about 150 Hz to about 20 kHz. For example, the fourth vibration device 550D configured to vibrate at least one or more of the middle and / or lower regions of the interior materials 530D1 to 530D4 of the first to fourth doors can be one or more of a woofer, a mid-bass speaker, and a subwoofer, but embodiments of this disclosure are not limited thereto. For example, a fourth vibration device 550D configured to vibrate the middle and / or lower regions of each of the first door interior materials 530D1 to the fourth door interior materials 530D4 may be referred to as one or more terms such as a woofer, a mid-bass speaker, and a subwoofer, but embodiments of this disclosure are not limited thereto.

[0311] Sounds output from the fourth vibration device 550D located at the interior material 530D1 of the first door and the fourth vibration device 550D located at the interior material 530D2 of the second door can be combined and output. For example, sounds output from at least one or more of the fourth vibration devices 550D located at the interior material 530D1 of the first door and the interior material 530D2 of the second door can be combined and output. Furthermore, sounds output from the fourth vibration device 550D located at the interior material 530D3 of the third door and sounds output from the fourth vibration device 550D located at the interior material 530D4 of the fourth door can be combined and output.

[0312] According to embodiments of this disclosure, the upper region of each of the first door interior material 530D1 to the fourth door interior material 530D4 may include a first upper region adjacent to the dashboard 530A, a second upper region adjacent to the rear seats RPS1, RPS2, and RPS3, and a third upper region between the first and second upper regions. For example, a fourth vibration device 550D may be disposed at one or more of the first to third upper regions of each of the first door interior material 530D1 to the fourth door interior material 530D4. For example, the fourth vibration device 550D may be disposed at the first upper region of each of the first door interior material 530D1 and the second door interior material 530D2, and may also be disposed at one or more of the second and third upper regions of each of the first door interior material 530D1 and the second door interior material 530D2. For example, a fourth vibration device 550D may be disposed at one or more of the first upper regions to the third upper regions of one or more of the first door interior materials 530D1 to the fourth door interior materials 530D4. For example, a fourth vibration device 550D configured to vibrate one or more of the first upper regions of the first door interior materials 530D1 and the second door interior materials 530D2 may be configured to output a sound of about 2 kHz to about 20 kHz, and a fourth vibration device 550D configured to vibrate one or more of the second upper regions and the third upper regions of each of the first door interior materials 530D1 and the second door interior materials 530D2 may be configured to output a sound of about 2 kHz to about 20 kHz, or may be configured to output a sound of about 150 Hz to about 20 kHz. For example, a fourth vibration device 550D, configured to cause one or more of the second upper region and the third upper region of one or more of the first door interior material 530D1 and the second door interior material 530D2 to vibrate, can be configured to output sound from about 2 kHz to about 20 kHz, or can be configured to output sound from about 150 Hz to about 20 kHz.

[0313] Reference Figure 21 , Figure 22 and Figure 26 According to embodiments of this disclosure, the fifth vibration device 550E can be disposed between the seat frame and the seat interior material 530E, and can be configured to indirectly or directly vibrate the seat interior material 530E to output sound. For example, the fifth vibration device 550E may include the above-mentioned reference... Figures 1 to 20The vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. For example, the fifth vibration device 550E may be referred to by terms such as seat speaker, headrest speaker, or fifth speaker, but the embodiments of this disclosure are not limited thereto.

[0314] According to embodiments of this disclosure, the seat frame may include a first seat frame (or driver's seat frame), a second seat frame (or passenger seat frame), a third seat frame (or first rear seat frame), a fourth seat frame (or second rear seat frame), and a fifth seat frame (or third rear seat frame). According to embodiments of this disclosure, the seat interior material 530E 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.

[0315] According to embodiments of this disclosure, at least one or more of the first to fifth seat frames may include a seat bottom frame, a seat back frame, and a headrest frame. The seat interior material 530E may include a seat bottom interior material 530E1 surrounding the seat bottom frame, a seat back interior material 530E2 surrounding the seat back frame, and a headrest interior material 530E3 surrounding the headrest frame. At least one or more of the seat bottom interior material 530E1, seat back interior material 530E2, and headrest interior material 530E3 may include an inner seat interior material and an outer seat interior material. The inner seat interior material may include a foam layer. The outer seat interior material may include a surface layer comprising fibers or leather. The outer seat interior material may also include a base layer comprising a plastic material supporting the surface layer.

[0316] According to embodiments of the present disclosure, the fifth vibration device 550E may be disposed in at least one or more of the regions between the seat back frame and the seat back interior material 530E2 and between the headrest frame and the headrest interior material 530E3, and thus may vibrate at least one or more of the seat back interior material 530E2 and the seat exterior interior material 530E3.

[0317] According to embodiments of the present disclosure, a fifth vibration device 550E disposed at at least one or more locations in the driver's seat DS and the passenger seat FPS may be disposed at at least one or more locations in the area between the seat back frame and the seat back interior material 530E2 and in the area between the headrest frame and the headrest interior material 530E3.

[0318] According to embodiments of this disclosure, a fifth vibration device 550E disposed at at least one or more of the first to third rear seats RPS1, RPS2, and RPS3 may be disposed between the headrest frame and the headrest interior material 530E3. For example, at least one or more of the first to third rear seats RPS1, RPS2, and RPS3 may include at least one or more fifth vibration devices 550E disposed between the headrest frame and the headrest interior material 530E3.

[0319] According to embodiments of this disclosure, a fifth vibration device 550E that vibrates the interior material 530E2 of the seat back of at least one or more of the driver's seat DS and passenger seats FPS can be configured to output sound from about 150 Hz to about 20 kHz.

[0320] According to embodiments of this disclosure, a fifth vibration device 550E that vibrates the headrest interior material 530E3 of at least one or more of the driver's seat DS, passenger seat FPS, and first to third rear seats RPS1, RPS2, and RPS3 can be configured to output sound from about 2 kHz to about 20 kHz, or can be configured to output sound from about 150 Hz to about 20 kHz.

[0321] Reference Figures 21 to 23 According to embodiments of this disclosure, the sixth vibration device 550F can be disposed between the handle frame and the handle interior material 530F, and can be configured to indirectly or directly vibrate the handle interior material 530F to output sound. For example, the sixth vibration device 550F may include the above-mentioned reference... Figures 1 to 20 The vibration device 130 is described, and therefore, repeated descriptions thereof may be omitted. For example, the sixth vibration device 550F may be referred to by terms such as handle speaker, turn signal speaker, or sixth speaker, but the embodiments of this disclosure are not limited thereto.

[0322] According to embodiments of this disclosure, the sixth vibration device 550F can be configured to indirectly or directly vibrate the handle internal material 530F to provide sound to the driver. The sound output by the sixth vibration device 550F can be the same as or different from the sound output by each of the first vibration devices 550A to the fifth vibration devices 550E. For example, the sound output by the sixth vibration device 550F can be the same as or different from the sound output by at least one or more of the first vibration devices 550A to the fifth vibration devices 550E. As an embodiment of this disclosure, the sixth vibration device 550F can output a sound provided only to the driver. In another embodiment of this disclosure, the sound output by the sixth vibration device 550F and the sound output by each of the first vibration devices 550A to the fifth vibration devices 550E can be combined and output. For example, the sound output by the sixth vibration device 550F and the sound output by at least one or more of the first vibration devices 550A to the fifth vibration devices 550E can be combined and output.

[0323] Reference Figure 21 and Figure 22 The seventh vibration device 550G can be disposed between the floor panel and the floor interior material 530G, and can be configured to indirectly or directly vibrate the floor interior material 530G to output sound. The seventh vibration device 550G can be disposed between the floor interior material 530G and the floor panel disposed between the front seats DS and FPS and the third rear seat RPS3. For example, the seventh vibration device 550G may include the above-mentioned reference... Figures 1 to 20 The vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. For example, the seventh vibration device 550G can be configured to output sound from about 150 Hz to about 20 kHz. For example, the seventh vibration device 550G can be referred to by terms such as floor speaker, bottom speaker, lower speaker, or seventh speaker, but embodiments of this disclosure are not limited thereto.

[0324] Reference Figures 21 to 25The vehicle equipment according to embodiments of this disclosure may further include a second vibration generating device 550-2 disposed in or at the interior material 530 exposed to the interior space. For example, the vehicle equipment according to embodiments of this disclosure may include only the second vibration generating device 550-2 instead of the first vibration generating device 550-1, or may include all of the first vibration generating devices 550-1 and the second vibration generating device 550-2. For example, the first vibration generating device 550-1 and / or the second vibration generating device 550-2 may be disposed in or at the interior material 530 to output sound. For example, the interior material 530 may output sound based on the vibrations of one or more vibration generating devices (or vibration devices).

[0325] According to embodiments of this disclosure, the interior material 530 may also include a rearview mirror 530H, a top-mounted console 530I, trunk interior material 530J, a glove box 530K, and a sun visor 530L, etc.

[0326] The second vibration generating device 550-2 according to embodiments of this disclosure may include at least one or more vibration devices 550H to 550L, said at least one or more vibration devices 550H to 550L being disposed at at least one of the following: rearview mirror 530H, overhead console 530I, trunk interior material 530J, glove box 530K, and sun visor 530L. For example, the second vibration generating device 550-2 may include at least one or more of the following: eighth vibration device 550H to twelfth vibration device 550L, and therefore may output sound through one or more channels.

[0327] Reference Figures 21 to 25 The eighth vibration device 550H can be installed at the rearview mirror 530H and can be configured to indirectly or directly vibrate the rearview mirror 530H to output sound. The eighth vibration device 550H can be installed between the mirror housing connected to the main structure and the rearview mirror 530H supported by the mirror housing. For example, the eighth vibration device 550H may include the components mentioned above. Figures 1 to 20 Vibration equipment Figures 7A to 7D The vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. For example, the eighth vibration device 550H can be configured to output sound from about 150 Hz to about 20 kHz. For example, the eighth vibration device 550H can be referred to by terms such as mirror loudspeaker or eighth loudspeaker, but embodiments of this disclosure are not limited thereto.

[0328] Reference Figure 22 , Figure 23 and Figure 25The ninth vibration device 550I can be located at the overhead console 530I and can be configured to indirectly or directly vibrate the console cover of the overhead console 530I to output sound. According to embodiments of this disclosure, the overhead console 530I may include a console box embedded (or recessed) in the roof panel, a lighting device located at the console box, and a console cover covering the lighting device and the console box.

[0329] The ninth vibration device 550I can be installed between the control box and the control cover of the top control console 530I, and can vibrate the control cover. For example, the ninth vibration device 550I can be installed between the control box and the control cover of the top control console 530I, and can directly vibrate the control cover. For example, the ninth vibration device 550I may include the above-mentioned reference. Figures 1 to 20 Vibration equipment Figures 7A to 7D The vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. For example, the ninth vibration device 550I can be configured to output sound from about 150 Hz to about 20 kHz. For example, the ninth vibration device 550I can be referred to by terms such as console speaker, lighting speaker, or ninth speaker, but embodiments of this disclosure are not limited thereto.

[0330] The vehicle equipment according to embodiments of this disclosure may further include a central lighting box disposed in the central region of the interior material 530C of the roof, a central lighting device disposed in the central lighting box, and a central lighting cover covering the central lighting device. For example, a ninth vibration device 550I may also be disposed between the central lighting box and the central lighting cover of the central lighting device, and may additionally vibrate the central lighting cover.

[0331] Reference Figure 21 and Figure 22 The tenth vibration device 550J can be installed at the trunk interior material 530J and can be configured to vibrate the trunk interior material 530J indirectly or directly to output sound. The trunk interior material 530J can be installed behind (or on the back of) the first to third rear seats RPS1, RPS2 and RPS3. For example, a portion of the trunk interior material 530J can be installed below the rear window 540C.

[0332] The tenth vibration device 550J can be installed on the rear surface of the material 530J inside the trunk, and can vibrate the material 530J inside the trunk. For example, in Figures 1 to 20 The tenth vibration device 550J in the vibration equipment may include the above-mentioned reference. Figures 7A to 7DThe vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. For example, the tenth vibration device 550J may be referred to by terms such as rear speaker or tenth speaker, but the embodiments of this disclosure are not limited thereto.

[0333] According to embodiments of this disclosure, the trunk interior material 530J may include a first region corresponding to the rear of the first rear seat RPS1, a second region corresponding to the rear of the second rear seat RPS2, and a third region corresponding to the rear of the third passenger seat RPS3. According to embodiments of this disclosure, a tenth vibration device 550J may be configured to vibrate at least one or more of the first to third regions of the trunk interior material 530J. For example, the tenth vibration device 550J may be located at each of the first and second regions of the trunk interior material 530J, or it may be located at each of the first to third regions of the trunk interior material 530J. For example, the tenth vibration device 550J may be located at at least one or more of the first and second regions of the trunk interior material 530J, or it may be located at at least one or more of the first to third regions of the trunk interior material 530J. For example, the tenth vibration device 550J may be configured to output a sound from approximately 150 Hz to approximately 20 kHz. For example, a tenth vibration device 550J configured to cause vibration in each of the first to third regions of the trunk interior material 530J can have the same or different sound output characteristics. For example, a tenth vibration device 550J configured to cause vibration in at least one or more of the first to third regions of the trunk interior material 530J can have the same or different sound output characteristics.

[0334] Reference Figures 21 to 23 The eleventh vibration device 550K can be installed at the glove box 530K and can be configured to vibrate the glove box 530K indirectly or directly to output sound. The glove box 530K can be installed at the instrument panel 530A corresponding to the front of the passenger seat FPS.

[0335] The eleventh vibration device 550K can be installed on the inner surface of the glove box 530K and can vibrate the glove box 530K. For example, in Figures 1 to 20 In the vibration equipment, the eleventh vibration equipment 550K may include the above-mentioned reference. Figures 7A to 7DThe vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. For example, the eleventh vibration device 550K may be configured to output sound from about 150 Hz to about 20 kHz, or may be one or more of a woofer, mid-bass speaker, and subwoofer, but embodiments of this disclosure are not limited thereto. For example, the eleventh vibration device 550K may be referred to by terms such as glove box speaker or eleventh speaker, but embodiments of this disclosure are not limited thereto.

[0336] Reference Figure 23 The twelfth vibration device 550L can be installed at the sun visor 530L and can be configured to vibrate the sun visor 530L indirectly or directly to output sound. The sun visor 530L may include a first sun visor 530L1 corresponding to the driver's seat DS and a second sun visor 530L2 corresponding to the passenger seat FPS.

[0337] The twelfth vibration device 550L can be installed at at least one or more of the first sunshade 530L1 and the second sunshade 530L2, and can indirectly or directly vibrate at least one or more of the first sunshade 530L1 and the second sunshade 530L2. For example, in Figures 1 to 20 In the vibrating equipment, the twelfth vibrating device 550L may include the above-mentioned reference. Figures 7A to 7D The vibration device 130 is described, and therefore, repeated descriptions thereof can be omitted. For example, the twelfth vibration device 550L can be configured to output sound from about 150 Hz to about 20 kHz. For example, the twelfth vibration device 550L can be referred to by terms such as a sun visor loudspeaker or a twelfth loudspeaker, but embodiments of this disclosure are not limited thereto.

[0338] According to embodiments of this disclosure, at least one or more of the first sun visor 530L1 and the second sun visor 530L2 may further include sun visor mirrors. In this case, the twelfth vibration device 550L may be configured to indirectly or directly vibrate the sun visor mirrors of at least one or more of the first sun visor 530L1 and the second sun visor 530L2. Figures 1 to 20 In the vibration equipment, the twelfth vibration device 550L for vibrating the sun shade mirror may include the above-mentioned reference. Figures 7A to 7D The vibration device 130 is described, and therefore, repeated descriptions of it can be omitted.

[0339] Reference Figures 21 to 25The vehicle equipment according to embodiments of this disclosure may further include a third vibration generating device 550-3 disposed at the glass window 540. For example, the vehicle equipment according to embodiments of this disclosure may include a third vibration generating device 550-3 instead of at least one or more of the first vibration generating device 550-1 and the second vibration generating device 550-2, or may include all of the first to third vibration generating devices 550-1, 550-2, and 550-3. For example, one or more of the first vibration generating device 550-1, the second vibration generating device 550-2, and the third vibration generating device 550-3 may be disposed in or at the window 540 to output sound. For example, the window 540 may output sound based on the vibration of one or more vibration generating devices (or vibration devices).

[0340] The third vibration generating device 550-3 may include at least one or more vibration devices 510M to 550P disposed at the glass window 5404. For example, the third vibration generating device 550-3 may include at least one or more of the thirteenth to sixteenth vibration devices 550M to sixteenth vibration devices 550P, and thus may output sound from one or more channels. For example, the third vibration generating device 550-3 may be referred to by terms such as window loudspeaker, transparent sound generating device, transparent loudspeaker, or opaque loudspeaker, but embodiments of this disclosure are not limited thereto.

[0341] At least one or more of the thirteenth vibration device 510M to the sixteenth vibration device 550P according to embodiments of this disclosure can be configured to vibrate the glass window 540 indirectly or directly. For example, at least one or more of the thirteenth vibration device 510M to the sixteenth vibration device 550P may include the above-mentioned reference. Figures 1 to 20 The described vibration device 130 can be configured to be transparent, translucent, or opaque, and therefore, repeated descriptions of them can be omitted.

[0342] According to embodiments of this disclosure, the glass window 540 may include a front glass window 540A, side glass windows 540B, and a rear glass window 540C. According to embodiments of this disclosure, the glass window 540 may also include a roof glass window 540D. For example, when the vehicle equipment includes a roof glass window 540D, a portion of the area of ​​the roof frame and the interior roof material 530C may be replaced by the roof glass window 540D. For example, when the vehicle equipment includes a roof glass window 540D, a third vibration device 550C may be configured to indirectly or directly vibrate the peripheral portion of the interior roof material 530C surrounding the roof glass window 540D.

[0343] Reference Figures 21 to 23According to the embodiments of this disclosure, the thirteenth vibration device 510M can be installed at the front window 540A and can be configured to output sound by vibrating itself, or can be configured to indirectly or directly vibrate the front window 540A to output sound.

[0344] According to embodiments of this disclosure, the windshield 540A may include a first region corresponding to the driver's seat DS, a second region corresponding to the passenger seat FPS, and a third region (or intermediate region) between the first and second regions. For example, a thirteenth vibration device 550M may be disposed at at least one or more locations in the first to third regions of the windshield 540A. For example, the thirteenth vibration device 550M may be disposed at each of the first and second regions of the windshield 540A, or may be disposed at each of the first to third regions of the windshield 540A. For example, the thirteenth vibration device 550M may be disposed at at least one or more locations in the first and second regions of the windshield 540A, or may be disposed at at least one or more locations in the first to third regions of the windshield 540A. For example, the thirteenth vibration device 550M disposed in each of the first to third regions of the windshield 540A, or disposed at each of the first to third regions of the windshield 540A, may have the same or different sound output characteristics. For example, the thirteenth vibration device 550M disposed at at least one or more locations in the first to third regions of the front window 540A may have the same or different sound output characteristics. For example, the thirteenth vibration device 550M may be configured to output sound from about 150 Hz to about 20 kHz. For example, the thirteenth vibration device 550M may be referred to by terms such as front window speaker or thirteenth speaker, but embodiments of this disclosure are not limited thereto.

[0345] Reference Figures 22 to 24 and Figure 26 According to the embodiments of the present disclosure, the fourteenth vibration device 550N can be installed at the side glass window 540B and can be configured to output sound by vibrating itself, or can be configured to indirectly or directly vibrate the side glass window 540B to output sound.

[0346] According to embodiments of the present disclosure, the side glass window 540B may include a first side glass window (or left front window) 540B1, a second side glass window (or right front window) 540B2, a third side glass window (or left rear window) 540B3 and a fourth side glass window (or right rear window) 540B4.

[0347] According to embodiments of this disclosure, the fourteenth vibration device 550N may be disposed at at least one or more of the first side glass windows 540B1 to the fourth side glass windows 540B4. For example, at least one or more of the first side glass windows 540B1 to the fourth side glass windows 540B4 may include at least one or more fourteenth vibration devices 550N.

[0348] According to embodiments of this disclosure, the fourteenth vibration device 550N can be disposed at at least one or more of the first side windows 540B1 to the fourth side windows 540B4, and can be configured to output sound by vibrating itself, or can be configured to indirectly or directly vibrate the corresponding side windows 540B1 to 540B4 to output sound. For example, the fourteenth vibration device 550N can be configured to output sound from about 150Hz to about 20kHz. For example, the fourteenth vibration device 550N disposed at at least one or more of the first side windows 540B1 to the fourth side windows 540B4 can have the same sound output characteristics or different sound output characteristics. For example, the fourteenth vibration device 550N can be configured to output sound from about 150Hz to about 20kHz. For example, the fourteenth vibration device 550N can be a side window speaker or a fourteenth speaker, etc., but embodiments of this disclosure are not limited thereto.

[0349] Reference Figure 21 According to the embodiments of the present disclosure, the fifteenth vibration device 550O can be installed at the rear window 540C and can be configured to output sound by vibrating itself, or can be configured to indirectly or directly vibrate the rear window 540C to output sound.

[0350] According to embodiments of this disclosure, the rear window 540C may include a first region corresponding to the rear of the first rear seat RPS1, a second region corresponding to the rear of the second rear seat RPS2, and a third region corresponding to the rear of the third rear seat RPS3. According to embodiments of this disclosure, a fifteenth vibration device 550O may be disposed at each of the first to third regions of the rear window 540C. For example, the fifteenth vibration device 550O may be disposed at at least one or more of the first to third regions of the rear window 540C. For example, the fifteenth vibration device 550O may be disposed at each of the first and second regions of the rear window 540C, or may be disposed at each of the first to third regions of the rear window 540C. For example, the fifteenth vibration device 550O may be disposed at at least one or more of the first and second regions of the rear window 540C, or may be disposed at at least one or more of the first to third regions of the rear window 540C. For example, the fifteenth vibration device 550O may be configured to output a sound from about 150 Hz to about 20 kHz. For example, the fifteenth vibration device 550O disposed at each of the first to third regions of the rear window 540C may have the same or different sound output characteristics. For example, the fifteenth vibration device 550O disposed at at least one or more of the first to third regions of the rear window 540C may have the same or different sound output characteristics. For example, the fifteenth vibration device 550O disposed at at least one or more of the first to third regions of the rear window 540C may be configured to output sound from about 150 Hz to about 20 kHz, or may be one or more of a woofer, mid-bass speaker, and subwoofer, etc., but embodiments of this disclosure are not limited thereto. For example, the fifteenth vibration device 550O may be referred to by terms such as rear window speaker or fifteenth speaker, but embodiments of this disclosure are not limited thereto.

[0351] Reference Figure 25 According to the embodiments of this disclosure, the sixteenth vibration device 550P can be installed at the roof glass window 540D and can output sound by vibrating itself, or can be configured to indirectly or directly vibrate the roof glass window 540D to output sound.

[0352] According to embodiments of this disclosure, the roof window 540D can be positioned above the front seats DS and FPS. For example, a sixteenth vibration device 550P can be positioned in the central area of ​​the roof window 540D. For example, the sixteenth vibration device 550P can be configured to output sound from approximately 150Hz to approximately 20kHz. For example, the sixteenth vibration device 550P can be referred to by terms such as roof window speaker or sixteenth speaker, but embodiments of this disclosure are not limited thereto.

[0353] According to another embodiment of this disclosure, the roof glass 540D can be disposed at the front seats DS and FPS, or at the front seats DS and FPS and the rear seats RPS1, RPS2, and RPS3. For example, the roof glass 540D may include a first region corresponding to the front seats DS and FPS and a second region corresponding to the rear seats RPS1, RPS2, and RPS3. Furthermore, the roof glass 540D may include a third upper region between the first upper region and the second upper region. For example, the sixteenth vibration device 550P may be disposed at at least one or more of the first and second regions of the roof glass 540D, or at least one or more of the first to third regions of the roof glass 540D. For example, the sixteenth vibration device 550P may be configured to output sound from about 150Hz to about 20kHz. For example, the sixteenth vibration device 550P disposed at at least one or more of the first to third regions of the roof glass 540D may have the same or different sound output characteristics.

[0354] Reference Figures 21 to 23 The vehicle equipment according to embodiments of this disclosure may also include a subwoofer WS disposed at at least one or more of the instrument panel 530A, the door frame, and the trunk interior material 530J.

[0355] The woofer WS according to embodiments of this disclosure may include at least one or more of a woofer, a mid-bass speaker, and a subwoofer. For example, the woofer WS may be referred to by terms such as a speaker that outputs sound from about 60 Hz to about 150 Hz, but embodiments of this disclosure are not limited thereto. Therefore, the woofer WS can output sound from about 60 Hz to about 150 Hz, and thus can enhance the bass characteristics of the sound output to a room space.

[0356] According to embodiments of this disclosure, the subwoofer WS can be disposed at at least one or more locations in the first and second regions of the dashboard 530A. According to embodiments of this disclosure, the subwoofer WS can be disposed at each of the first to fourth door frames of the door frame, and can be exposed in the lower region of each of the first to fourth door interior materials 530D4 of the door interior material 530D. For example, the subwoofer WS can be disposed at at least one or more of the first to fourth door frames of the door frame, and can be exposed in the lower region of at least one or more of the first to fourth door interior materials 530D4 of the door interior material 530D. According to another embodiment of this disclosure, the subwoofer WS can be disposed at at least one or more locations in the first and second regions of the trunk interior material 530J. For example, the fourth vibration device 550D disposed in the lower region of each of the first to fourth door interior materials 530D4 can be replaced by the subwoofer WS. For example, the fourth vibration device 550D disposed in the lower region of at least one or more of the interior materials 530D1 to 530D4 of the first door or the lower region of at least one or more of the interior materials 530D1 to 530D4 of the fourth door can be replaced by a subwoofer WS.

[0357] Reference Figure 23 and Figure 24 The vehicle equipment according to embodiments of this disclosure may further include a decorative member 530M that covers the interior material 530 exposed in the interior space and a portion of a fourth vibration generating device 550-4 disposed on the interior material 530. For example, the fourth vibration generating device 550-4 may be disposed on the decorative member 530M and the interior material 530 to output sound. For example, one or more of the decorative member 530M and the interior material 530 may output sound based on the vibration of one or more vibration generating devices (or vibration devices).

[0358] The trim member 530M may be configured to cover a portion of the door interior material 530D exposed in the interior space, but embodiments of this disclosure are not limited thereto. For example, the trim member 530M may be configured to cover a portion of one or more of the dashboard 530A, the filler interior material 530B, and the roof interior material 530C exposed in the interior space.

[0359] The decorative component 530M according to embodiments of this disclosure may include metallic or non-metallic materials (or composite non-metallic materials) having material properties suitable for generating sound based on vibration. For example, the metallic material of the decorative component 530M may include any one or more of stainless steel, aluminum (Al), aluminum alloys, magnesium (Mg), magnesium alloys, and magnesium-lithium ((Mg-Li) alloys), but embodiments of this disclosure are not limited thereto. The non-metallic material (or composite non-metallic material) of the decorative component 530M may include one or more of wood, plastic, glass, metal, cloth, fiber, rubber, paper, mirror, carbon, and leather, but embodiments of this disclosure are not limited thereto. For example, the decorative component 530M may include metallic materials having material properties suitable for generating high-pitched vocal cords, but embodiments of this disclosure are not limited thereto. For example, high-pitched vocal cords may have frequencies of 1 kHz or higher or 3 kHz or higher, but embodiments of this disclosure are not limited thereto.

[0360] The fourth vibration generating device 550-4 may include a seventeenth vibration device 550Q disposed between the decorative member 530M and the interior material 530. For example, the fourth vibration generating device 550-4 or the seventeenth vibration device 550Q may be referred to by terms such as decorative loudspeaker or seventeenth loudspeaker, but embodiments of this disclosure are not limited thereto.

[0361] The seventeenth vibration device 550Q according to embodiments of this disclosure may include the above-mentioned reference. Figures 1 to 20 One or more of the vibration devices 130. The seventeenth vibration device 550Q may be disposed in the main interior material 530 and the decorative component 530M or disposed at the main interior material 530 and the decorative component 530M, and may be connected or coupled to the decorative component 530M.

[0362] The seventeenth vibration device 550Q according to an embodiment of this disclosure can be configured to vibrate the decorative member 530M indirectly or directly to output sound into the interior space of the vehicle equipment. For example, the seventeenth vibration device 550Q can be configured to output high-pitched vocal cord sound, but the embodiments of this disclosure are not limited thereto.

[0363] Reference Figure 23 The vehicle equipment according to embodiments of this disclosure may further include a fifth vibration generating device 550-5 disposed on the inner surface of the outer material 520. For example, the fifth vibration generating device 550-5 may be disposed in or on the outer material 520 to output sound. For example, the outer material 520 may output sound based on the vibration of one or more vibration generating devices (or vibration devices).

[0364] The fifth vibration generating device 550-5 may include one or more vibration devices 550R, 550S, and 550T disposed at one or more of the hood panel 520A, the front fender 520B, and the trunk panel 520C. For example, the fifth vibration generating device 550-5 may include at least one or more of the eighteenth to twentieth vibration devices 550R, 550S, and 550T, and therefore may output one or more channels of sound.

[0365] According to embodiments of this disclosure, one or more eighteenth vibration devices 550R can be connected or coupled to the inner surface of the hood panel 520A and can indirectly or directly vibrate the hood panel 520A to output sound to the outdoor space of the vehicle equipment. For example, one or more eighteenth vibration devices 550R can be configured to be connected or coupled to one or more of the central and peripheral portions of the inner surface of the hood panel 520A.

[0366] One or more eighteenth vibration devices 550R according to embodiments of this disclosure may include the above-mentioned reference. Figures 1 to 20 One or more of the aforementioned vibration devices 130. One or more eighteenth vibration devices 550R may be connected or coupled to the inner surface of the housing 520A. For example, one or more eighteenth vibration devices 550R may be configured to output sound from 150Hz to 20kHz. For example, one or more eighteenth vibration devices 550R may be referred to as a housing loudspeaker or an eighteenth loudspeaker, but embodiments of this disclosure are not limited thereto.

[0367] According to embodiments of this disclosure, one or more nineteenth vibration devices 550S can be connected or coupled to the inner surface of the front fender 520B and can be configured to vibrate the front fender 520B indirectly or directly to output sound to the outdoor space of the vehicle equipment. For example, one or more nineteenth vibration devices 550S can be arranged to have a specific interval at the inner surface of the front fender 520B.

[0368] One or more nineteenth vibration devices 550S according to embodiments of this disclosure may include the above-mentioned reference. Figures 1 to 20 The described vibration device 130 is therefore omitted from repeated description. One or more nineteenth vibration devices 550S can be connected or coupled to the inner surface of the front fender 520B via coupling members. For example, one or more nineteenth vibration devices 550S can be configured to output sound from about 150 Hz to about 20 kHz. For example, one or more nineteenth vibration devices 550S can be referred to by terms such as fender loudspeaker or nineteenth loudspeaker, but embodiments of this disclosure are not limited thereto.

[0369] According to embodiments of this disclosure, one or more twentieth vibration devices 550T can be connected or coupled to the inner surface of the trunk panel 520C and can be configured to vibrate the trunk panel 520C indirectly or directly to output sound to the outdoor space of the vehicle equipment. For example, one or more twentieth vibration devices 550T can be configured to be connected or coupled to one or more of the central and peripheral portions of the trunk panel 520C.

[0370] According to embodiments of this disclosure, one or more twentieth vibration devices 550T may include the above-mentioned reference. Figures 1 to 20 The aforementioned vibration device 130. One or more twentieth vibration devices 550T may be connected or coupled to the inner surface of the trunk panel 520C via coupling members. For example, one or more twentieth vibration devices 550T may be configured to output sound from about 150 Hz to about 20 kHz. For example, one or more twentieth vibration devices 550T may be referred to by terms such as trunk panel speaker or twentieth speaker, but embodiments of this disclosure are not limited thereto.

[0371] According to another embodiment of this disclosure, the fifth vibration generating device 550-5 may further include one or more vibration devices disposed in one or more of the inner door panel and the outer door panel, or disposed at one or more of the inner door panel and the outer door panel.

[0372] Reference Figures 21 to 23 The vehicle equipment according to embodiments of this disclosure may further include an instrument panel device 560, an infotainment device 570, a central instrument panel device 580, and a curvature changing device 590.

[0373] According to embodiments of this disclosure, the instrument panel device 560 may be disposed in a first area of ​​the instrument panel 530A, facing the driver's seat DS. The instrument panel device 560 may include a first display 561 disposed in the first area of ​​the instrument panel 530A, facing the driver's seat DS.

[0374] The first display 561 may include the above reference. Figures 1 to 20Any of the devices 10 to 40 described herein, and therefore, repeated descriptions thereof may be omitted. For example, the dashboard device 560 may output sound toward the driver's seat DS based on vibrations of one or more vibrating devices 130 included at the first display 561, the sound being generated by the vibration of the vibrating member (or display panel) 100. For example, the vibrating device 130 disposed at the first display 261 of the dashboard device 560 may be configured to output sound from about 150 Hz to about 20 kHz.

[0375] The infotainment device 570 can be located in the third area of ​​the instrument panel 530A.

[0376] According to embodiments of this disclosure, the infotainment device 570 can be fixed in an upright position on a third area of ​​the instrument panel 530A.

[0377] An infotainment device 570 according to another embodiment of this disclosure can be installed in a third area of ​​the instrument panel 530A for raising and lowering. For example, the infotainment device 570 can be received or housed in the instrument panel 530A based on the power being disconnected from the vehicle equipment or operation by the vehicle passengers, and can protrude into an area of ​​the instrument panel 530A based on the power being connected to the vehicle equipment or operation by the vehicle passengers.

[0378] An infotainment device 570 according to an embodiment of the present disclosure may include a display (or a second display) 571 disposed in a third area of ​​a dashboard 530A and a display lifting device.

[0379] The second display 571 may include the above reference. Figures 1 to 1 Any of the devices described in 6, and therefore, repeated descriptions thereof may be omitted. For example, the infotainment device 570 may output sound toward the driver's seat DS based on vibrations of one or more vibrating devices 130 included at the second display 571, the sound being generated by the vibration of the display panel. For example, one or more vibrating devices 130 disposed at the second display 571 of the infotainment device 570 may be configured to output sound from about 150 Hz to about 20 kHz.

[0380] The display lifting device can be disposed in or located within a third area of ​​the instrument panel 530A, and can support the second display 571 for raising and lowering. For example, the display lifting device can raise the second display 571 based on power supply to the vehicle equipment or operation by a vehicle passenger, thereby allowing the second display 571 to protrude from the area on the instrument panel 530A. Furthermore, the display lifting device can lower the second display 571 based on power disconnection of the vehicle equipment or operation by a vehicle passenger, thereby allowing the second display 571 to be received or housed within the instrument panel 530A.

[0381] A central dashboard device 580 according to an embodiment of this disclosure may include a display (or a third display) 581.

[0382] The third display 581 may include the above reference. Figures 1 to 20 Any of the devices may be described, and therefore, repeated descriptions of them may be omitted. For example, the center dashboard device 580 may output sound toward the driver's seat DS or passenger seat FPS based on vibrations from one or more vibration devices 130 included at the third display 581, the sound being generated by the vibrations of the display panel.

[0383] The curvature changing device 590 according to embodiments of this disclosure may include a display (or a fourth display) 591.

[0384] The fourth display 591 may include the above reference. Figures 13 to 20 Any of the devices described herein, and therefore, may be omitted from repeated descriptions. For example, the curvature changing device 590 may output sound toward the driver's seat DS or passenger seat FPS based on the vibration of one or more vibrating devices 130 included at the fourth display 591, the sound being generated by the vibration of the display panel.

[0385] As described above, the vehicle equipment according to the embodiments of this disclosure can output sound to one or more of the indoor and outdoor spaces through at least one or more of the first vibration generating device 550-1 provided on the interior material 530, the second vibration generating device 550-2 provided on the interior material 530 exposed in the indoor space, the third vibration generating device 550-3 provided on the window 540, the fourth vibration generating device 550-4 provided on the decorative member 530M, and the fifth vibration generating device 550-5 provided on the exterior material 520. And thus, sound can be output by using one or more of the exterior material 520 and the interior material 530 as sound diaphragms, thereby outputting multi-channel surround sound. Furthermore, the vehicle equipment according to embodiments of this disclosure can output sound by using one or more of the display panels 561, 571, 581, and 291 of the dashboard equipment 560, infotainment equipment 570, central dashboard equipment 580, and curvature changing device 590 as sound diaphragms, and can output more realistic multi-channel surround sound by each of the first to fourth vibration generating devices 550-1 to 550-4, dashboard equipment 560, infotainment equipment 570, central dashboard equipment 580, and curvature changing device 590.

[0386] The vibration device according to embodiments of this disclosure can be connected to all electronic devices via wired or wireless means and can be used as a vibration device for the corresponding electronic device. For example, devices connected to vibration devices according to some embodiments of this disclosure can be applied to mobile devices, video phones, smartwatches, watch phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, bending devices, sliding devices, variable devices, electronic notebooks, e-books, portable multimedia players (PMPs), personal digital assistants (PDAs), MP3 players, mobile medical devices, desktop personal computers (PCs), laptop PCs, netbooks, workstations, navigation devices, car navigation devices, car display devices, automotive equipment, theater equipment, theater display devices, TVs, wallpaper display devices, signage devices, game consoles, laptop computers, monitors, cameras, portable camcorders, home appliances, etc. Furthermore, vibration devices according to some embodiments of this disclosure can be applied to organic or inorganic light-emitting lighting devices. When the vibration device according to some embodiments of this disclosure is applied to a lighting device, the lighting device can be used as both lighting and a speaker. Furthermore, when a vibration device according to some embodiments of this disclosure is applied to mobile devices, the vibration device may be used as one or more of a speaker, a receiver, and a tactile device, but the embodiments of this disclosure are not limited thereto.

[0387] The following describes an apparatus and a vehicle apparatus including the apparatus according to embodiments of the present disclosure.

[0388] The apparatus according to some embodiments of the present disclosure may include: a vibrating member; a housing at the rear surface of the vibrating member; a connecting member between the vibrating member and the housing; and a vibrating device configured to vibrate the vibrating member, the vibrating member including at least one flat portion; and at least one zigzag portion adjacent to the at least one flat portion.

[0389] According to some embodiments of this disclosure, at least one bend may include one or more of at least one concave bend and at least one convex bend.

[0390] According to some embodiments of the present disclosure, the vibrating member may include a first region, a second region adjacent to the first region, and a third region adjacent to the second region. The first region to the third region have different bending states. The first region may include at least one flat portion, the second region may include at least one concave bending portion, and the third region may include at least one convex bending portion.

[0391] According to some embodiments of this disclosure, the device may further include at least one first vibration device in a first region, at least one second vibration device in a second region, and at least one third vibration device in a third region.

[0392] According to some embodiments of this disclosure, at least one first vibration device may have a mechanical mass coefficient of less than 100, at least one third vibration device may have a mechanical mass coefficient of greater than 400, and at least one second vibration device may have a mechanical mass coefficient of 100 to 400.

[0393] According to some embodiments of this disclosure, the device may further include a variable curvature layer in contact with a second surface of the vibrating member, the variable curvature layer including a variable curvature portion and a protective member surrounding the variable curvature portion.

[0394] According to some embodiments of this disclosure, the device may further include a curvature variable layer controller configured to provide a curvature variable signal to the curvature variable layer. The curvature variable layer controller may include a first output terminal configured to output a first polarity signal and a second output terminal configured to output a second polarity signal. The first output terminal may be electrically connected to a vibrating member, and the second output terminal may be electrically connected to the curvature variable portion.

[0395] According to some embodiments of this disclosure, the housing may include a bottom portion spaced apart from the vibrating member, and a side portion projecting from the periphery of the bottom portion toward the vibrating member.

[0396] According to some embodiments of this disclosure, the device may further include a curvature changing device mounted on the bottom portion and configured to change the bending state of the vibrating member. The curvature changing device may include: a fixed portion fixed to the bottom portion; a first rotary link portion fixed to the fixed portion on one side thereon; a second rotary link portion connected to the other side of the first rotary link portion; a pivot portion that rotatably fixes the first rotary link portion and the second rotary link portion; and a support portion fixed to the other end of the second rotary link portion and coupled to the rear surface of the vibrating member.

[0397] According to some embodiments of this disclosure, the device may also include a demultiplexer configured to separate the same sound signal applied to the vibration device into signals with different frequencies and include filters.

[0398] According to some embodiments of this disclosure, a vibration device may include a vibration apparatus, which may include a vibration portion, a first electrode portion at a first surface of the vibration portion, and a second electrode portion at a second surface of the vibration portion that is different from the first surface.

[0399] According to some embodiments of this disclosure, the vibration device may further include a first cover member located at the first electrode portion and a second cover member located at the second electrode portion.

[0400] According to some embodiments of this disclosure, the vibration device may further include a first adhesive layer between the first cover member and the first electrode portion, and a second adhesive layer between the second cover member and the second electrode portion.

[0401] According to some embodiments of this disclosure, the vibrating portion may include an inorganic material portion having piezoelectric properties.

[0402] According to some embodiments of this disclosure, the vibrating portion may include a plurality of inorganic material portions having piezoelectric properties, and an organic material portion between the plurality of inorganic material portions.

[0403] According to some embodiments of this disclosure, the vibrating component may include a metallic material, or a single non-metallic material selected from wood, rubber, plastic, glass, fiber, cloth, paper, mirror, carbon, and leather, or a composite non-metallic material selected from wood, rubber, plastic, glass, fiber, cloth, paper, mirror, carbon, and leather.

[0404] According to some embodiments of this disclosure, the vibrating component may include one or more of the following: a display panel including pixels configured to display images, a light-emitting diode illumination panel, an organic light-emitting illumination panel, and an inorganic light-emitting illumination panel.

[0405] According to some embodiments of this disclosure, the vibrating component may include any of the following: a display panel including pixels configured to display images, a screen panel on which images are projected from a display device, a lighting panel, a sign panel, vehicle interior materials, vehicle windows, vehicle exterior materials, building ceiling materials, building interior materials, building windows, aircraft interior materials, aircraft windows, metals, wood, rubber, plastics, glass, fibers, cloth, paper, leather, carbon, and mirrors.

[0406] The apparatus according to some embodiments of the present disclosure may include: a vibrating member; a housing at the rear surface of the vibrating member; a connecting member between the vibrating member and the housing; and a vibrating device configured to vibrate the vibrating member. The vibrating member may include at least one flat portion and at least one concave curved portion or at least one convex curved portion disposed adjacent to the at least one flat portion. The vibrating member may include first to fourth regions that do not overlap with each other. A second region may include at least one flat portion. The first and fourth regions may include at least one convex curved portion, and a third region may include at least one concave curved portion.

[0407] According to some embodiments of this disclosure, the vibration device may include at least one first vibration device in a second region, at least one third vibration device in a first region and a fourth region, and at least one second vibration device in a third region.

[0408] According to some embodiments of this disclosure, at least one first vibration device may have a mechanical mass coefficient of less than 100, at least one third vibration device may have a mechanical mass coefficient of greater than 400, and at least one second vibration device may have a mechanical mass coefficient of 100 to 400.

[0409] The device according to some embodiments of the present disclosure may include: a vibrating member; a housing at the rear surface of the vibrating member; a connecting member between the vibrating member and the housing; and a vibration device configured to vibrate the vibrating member. The vibrating member may include at least one flat portion and at least one concave curved portion or at least one convex curved portion disposed adjacent to the at least one flat portion. The vibrating member may include first to fourth regions that do not overlap with each other. A second region may include at least one flat portion, a third region may include at least one convex curved portion, and the first and fourth regions may include at least one concave curved portion.

[0410] According to some embodiments of this disclosure, the vibration device may include at least one first vibration device in a second region, at least one third vibration device in a third region, and at least one second vibration device in the first and fourth regions.

[0411] According to some embodiments of this disclosure, at least one first vibration device may have a mechanical mass coefficient of less than 100, at least one third vibration device may have a mechanical mass coefficient of greater than 400, and at least one second vibration device may have a mechanical mass coefficient of 100 to 400.

[0412] Vehicle equipment according to some embodiments of the present disclosure may include: an outer material; an inner material covering the outer material; and one or more vibration generating devices at one or more locations in the outer material, the inner material, and the area between the outer material and the inner material, the one or more vibration generating devices including the device described in some embodiments of the present disclosure, and one or more of the inner material and the outer material may output sound based on the vibration of the one or more vibration generating devices.

[0413] According to some embodiments of this disclosure, the internal material may include one or more of the following materials: metal, plastic, fiber, leather, wood, cloth, rubber, carbon, mirror, and paper.

[0414] According to some embodiments of this disclosure, the interior materials may include one or more of the following: dashboard interior materials, pillar interior materials, roof interior materials, door interior materials, seat interior materials, handle interior materials, floor interior materials, rearview mirrors, overhead console, glove box, sun visor, and trunk interior materials; and one or more vibration generating devices may be configured to cause at least one or more of the following interior materials to vibrate: dashboard interior materials, pillar interior materials, roof interior materials, door interior materials, seat interior materials, handle interior materials, floor interior materials, rearview mirrors, overhead console, glove box, sun visor, and trunk interior materials.

[0415] According to some embodiments of this disclosure, the vehicle equipment may also include a glass window and a transparent vibration generating device at the glass window.

[0416] According to some embodiments of this disclosure, the glass window may include at least one or more of a front window, side windows, rear window, and roof window; and the transparent vibration generating device may be configured to cause at least one or more of the front window, side windows, rear window, and roof window to vibrate.

[0417] The apparatus according to some embodiments of this disclosure may include: a vibrating member; a housing at the rear surface of the vibrating member; a connecting member between the vibrating member and the housing; and a vibrating device configured to vibrate the vibrating member. The vibrating member may include at least one flat portion and at least one concave curved portion or at least one convex curved portion disposed adjacent to the at least one flat portion. The vibrating member may include first to fourth regions that do not overlap with each other. The first and third regions may include at least one convex curved portion. The second region may include at least one flat portion. The fourth region may include at least one concave curved portion.

[0418] The apparatus according to some embodiments of this disclosure may include: a vibrating member; a housing at the rear surface of the vibrating member; a connecting member between the vibrating member and the housing; and a vibrating device configured to vibrate the vibrating member. The vibrating member may include at least one flat portion and at least one concave curved portion or at least one convex curved portion disposed adjacent to the at least one flat portion. The vibrating member may include first to fourth regions that do not overlap with each other. The first and third regions may include at least one concave curved portion. The second region may include at least one flat portion. The fourth region may include at least one convex curved portion.

[0419] According to some embodiments of the present disclosure, the vibration device may include one or more vibration elements. The one or more vibration elements may include a vibration portion, a first electrode portion at a first surface of the vibration portion, and a second electrode portion at a second surface of the vibration portion that is different from the first surface.

[0420] It will be apparent to those skilled in the art that various modifications and variations can be made to the apparatus of this disclosure and the vehicle equipment including such apparatus without departing from the technical concept or scope of this disclosure. Therefore, it is intended that this disclosure cover modifications and variations thereof, provided they fall within the scope of the appended claims and their equivalents.

Claims

1. A device for outputting sound, comprising: Vibrating components; The housing located on the rear surface of the vibrating member; The connecting member between the vibrating component and the housing; as well as A vibration device configured to cause the vibrating component to vibrate. The vibrating component includes: At least one flat portion; and At least one zigzag portion adjacent to the at least one flat portion, The vibrating component includes a first region, a second region adjacent to the first region, and a third region adjacent to the second region. The first region to the third region have different bending states. The vibration device includes at least one first vibration device in the first region, at least one second vibration device in the second region, and at least one third vibration device in the third region. The at least one first vibration device and the at least one third vibration device have different mechanical mass coefficients.

2. The device according to claim 1, wherein, The at least one tortuous portion includes one or more of at least one concave bend and at least one convex bend.

3. The device according to claim 2, wherein: The first region includes at least one flat portion; The second region includes at least one concave curved portion; and The third region includes at least one convex curved portion.

4. The device according to claim 1, wherein: The mechanical mass coefficient of the at least one first vibration device is less than 100; The mechanical mass coefficient of the at least one third vibration device is greater than 400; and The mechanical mass coefficient of the at least one second vibration device is between 100 and 400.

5. The device according to claim 1, further comprising a variable curvature layer in contact with the second surface of the vibrating member. in, The variable curvature layer includes: The variable curvature portion; and Protective members surrounding the variable curvature portion.

6. The apparatus of claim 5, further comprising a variable curvature layer controller configured to provide a variable curvature signal to the variable curvature layer. in, The variable curvature layer controller includes: The first output terminal is configured to output a first polarity signal; and The second output terminal is configured to output a second polarity signal. Wherein, the first output terminal is electrically connected to the vibrating component, and The second output terminal is electrically connected to the variable curvature portion.

7. The device according to claim 1, wherein, The housing includes: The bottom portion spaced apart from the vibrating member; and The side portion protruding from the outer periphery of the bottom portion toward the vibrating member.

8. The device of claim 7, further comprising a curvature changing device mounted on the bottom portion and configured to change the bending state of the vibrating member. in, The curvature changing device includes: A fixing part that is fixed to the bottom portion; A first rotatable link portion, wherein the first rotatable link portion is fixed to the fixed portion at one side; A second rotary link portion connected to the other side of the first rotary link portion; A pivot portion that rotatably secures the first rotary link portion and the second rotary link portion; and The support portion is fixed to the other end of the second rotary link portion and coupled to the rear surface of the vibrating member.

9. The device of claim 1, further comprising a demultiplexer configured to separate the same acoustic signal applied to the vibrating device into signals having different frequencies, and including a filter.

10. The device according to claim 1, wherein, Each of the at least one first vibration device, the at least one second vibration device, and the at least one third vibration device includes: Vibrating part; The first electrode portion at the first surface of the vibrating portion; and The second electrode portion is located on a second surface that is different from the first surface of the vibrating portion.

11. The device according to claim 10, wherein, The vibration device also includes: The first cover member at the first electrode portion; and The second cover member at the second electrode portion.

12. The device according to claim 11, wherein, The vibration device also includes: A first adhesive layer between the first cover member and the first electrode portion; and A second adhesive layer between the second cover member and the second electrode portion.

13. The device according to claim 10, wherein, The vibrating part includes an inorganic material portion with piezoelectric properties.

14. The device according to claim 10, wherein, The vibrating component includes: Multiple inorganic material components exhibiting piezoelectric properties; and The organic material portion between the plurality of inorganic material portions.

15. The device according to claim 1, wherein, The vibrating component includes a metallic material, or a single non-metallic material selected from wood, rubber, plastic, glass, fiber, cloth, paper, mirror, carbon, and leather, or a composite non-metallic material selected from wood, rubber, plastic, glass, fiber, cloth, paper, mirror, carbon, and leather.

16. The device according to claim 1, wherein, The vibrating component includes one or more of the following: a display panel comprising pixels configured to display images, a light-emitting diode illumination panel, an organic light-emitting illumination panel, and an inorganic light-emitting illumination panel.

17. The device according to claim 1, wherein, The vibrating component includes any of the following: a display panel comprising pixels configured to display images, a screen panel on which images are projected from a display device, a lighting panel, a sign panel, vehicle interior materials, vehicle windows, vehicle exterior materials, building ceiling materials, building interior materials, building windows, aircraft interior materials, aircraft windows, metals, wood, rubber, plastics, glass, fibers, cloth, paper, leather, carbon, and mirrors.

18. A device for outputting sound, comprising: Vibrating components; The housing located on the rear surface of the vibrating member; The connecting member between the vibrating component and the housing; as well as A vibration device configured to cause the vibrating component to vibrate. The vibrating component includes: At least one flat portion; and It is configured to have at least one concave curved portion or at least one convex curved portion adjacent to the at least one flat portion. The vibrating component includes a first region, a second region, a third region, and a fourth region that do not overlap with each other. The second region includes the at least one flat portion. The first region and the fourth region include at least one convex curved portion. The third region includes the at least one concave curved portion. The vibration device includes at least one first vibration device in the second region, at least one third vibration device in the first region and the fourth region, and at least one second vibration device in the third region. The at least one first vibration device and the at least one third vibration device have different mechanical mass coefficients.

19. The apparatus according to claim 18, wherein: The mechanical mass coefficient of the at least one first vibration device is less than 100; The mechanical mass coefficient of the at least one third vibration device is greater than 400; and The mechanical mass coefficient of the at least one second vibration device is between 100 and 400.

20. A device for outputting sound, comprising: Vibrating components; The housing located on the rear surface of the vibrating member; The connecting member between the vibrating component and the housing; as well as A vibration device configured to cause the vibrating component to vibrate. The vibrating component includes: At least one flat portion; and It is configured to have at least one concave curved portion or at least one convex curved portion adjacent to the at least one flat portion. The vibrating component includes a first region, a second region, a third region, and a fourth region that do not overlap with each other. The second region includes the at least one flat portion. The third region includes at least one convex curved portion. Wherein, the first region and the fourth region include the at least one concave curved portion, The vibration device includes at least one first vibration device in the second region, at least one third vibration device in the third region, and at least one second vibration device in the first region and the fourth region. The at least one first vibration device and the at least one third vibration device have different mechanical mass coefficients.

21. The device according to claim 20, wherein: The mechanical mass coefficient of the at least one first vibration device is less than 100; The mechanical mass coefficient of the at least one third vibration device is greater than 400; and The mechanical mass coefficient of the at least one second vibration device is between 100 and 400.

22. A vehicle device, comprising: exterior materials; The inner material covering the outer material; as well as One or more vibration generating devices located in one or more of the outer material, the inner material, and the region between the outer material and the inner material. Wherein, the one or more vibration generating devices include the devices according to any one of claims 1 to 21, One or more of the internal material and the external material are configured to output sound based on the vibration of the one or more vibration generating devices.

23. The vehicle equipment according to claim 22, wherein, The internal materials include one or more of the following: metal, plastic, fiber, leather, wood, cloth, rubber, carbon, mirror, and paper.

24. The vehicle equipment according to claim 22, wherein: Interior materials include one or more of the following: dashboard, pillar interior materials, roof interior materials, door interior materials, seat interior materials, handle interior materials, floor interior materials, rearview mirrors, overhead console, glove box, sun visors, and trunk interior materials. as well as The one or more vibration generating devices are configured to cause at least one or more of the following materials to vibrate: the dashboard, the pillar interior material, the roof interior material, the door interior material, the seat interior material, the handle interior material, the floor interior material, the rearview mirror, the overhead console, the glove box, the sun visor, and the trunk interior material.

25. The vehicle equipment according to claim 22, further comprising: Glass window; as well as A transparent vibration generating device at the glass window.

26. The vehicle equipment according to claim 25, wherein: The glass windows include at least one or more of the following: a front window, side windows, a rear window, and a roof window; and The transparent vibration generating device is configured to cause at least one or more of the front window, the side windows, the rear window, and the roof window to vibrate.

27. A device for outputting sound, comprising: Vibrating components; The housing located on the rear surface of the vibrating member; The connecting member between the vibrating component and the housing; as well as A vibration device configured to cause the vibrating component to vibrate. The vibrating component includes: At least one flat portion; and It is configured to have at least one concave curved portion or at least one convex curved portion adjacent to the at least one flat portion. The vibrating component includes a first region, a second region, a third region, and a fourth region that do not overlap with each other. Wherein, the first region and the third region include at least one concave curved portion. The second region includes the at least one flat portion. The fourth region includes the at least one convex curved portion. The vibration device includes at least one first vibration device in the second region, at least one third vibration device in the fourth region, and at least one second vibration device in both the first and third regions. The at least one first vibration device and the at least one third vibration device have different mechanical mass coefficients.

28. A device for outputting sound, comprising: Vibrating components; The housing located on the rear surface of the vibrating member; The connecting member between the vibrating component and the housing; as well as A vibration device configured to cause the vibrating component to vibrate. The vibrating component includes: At least one flat portion; and It is configured to have at least one concave curved portion or at least one convex curved portion adjacent to the at least one flat portion. The vibrating component includes a first region, a second region, a third region, and a fourth region that do not overlap with each other. The first region and the third region include at least one convex curved portion. The second region includes the at least one flat portion. The fourth region includes at least one concave curved portion. The vibration device includes at least one first vibration device in the second region, at least one third vibration device in the first and third regions, and at least one second vibration device in the fourth region. The at least one first vibration device and the at least one third vibration device have different mechanical mass coefficients.

29. A vibration device according to claim 27 or 28, wherein, The vibration equipment includes one or more vibration devices. The one or more vibration devices include: Vibrating part; The first electrode portion at the first surface of the vibrating portion; and The second electrode portion is located on a second surface that is different from the first surface of the vibrating portion.

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