Sound generating device and vehicle including the same

Abstract

The present application relates to a sound generating device and a vehicle including the sound generating device. A sound generating device includes: a plurality of first parts, the plurality of first parts are arranged in each of a first region to a third region; and a plurality of second parts, the plurality of second parts are arranged between the plurality of first parts in each of the first region to the third region, and the cross-sectional shape of two or more second parts at any one of the first region to the third region is different from the cross-sectional shape of the second parts at each of the other regions of the first region to the third region.

Description

Technical Field

[0001] The present disclosure relates to a sound generating device and a vehicle including the sound generating device. Background Art

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

[0003] However, the sound generating device of the vehicle has a limitation in outputting real sound and / or stereo sound in multi-channel through the front and rear speakers. In the sound generating device of the vehicle, when the number of speakers increases, stereo sound can be output. However, due to the size of the coil-based speaker and the limitation of the space in the vehicle, there is a limitation in increasing the number of speakers.

[0004] Because the piezoelectric element is fragile, the piezoelectric element is easily damaged by external impact. Therefore, the reliability of sound reproduction is low. In addition, when a speaker such as a piezoelectric element is applied to a flexible display device, there is a problem of damage due to the fragile characteristics. Summary of the invention

[0005] Accordingly, the present disclosure is directed to a sound generating apparatus and a vehicle including the same that substantially obviate one or more problems due to limitations and disadvantages of the related art.

[0006] The inventors of the present disclosure have recognized the problems of a sound generating device and a vehicle including the same, and have conducted various experiments on a sound generating device that can output multi-channel real sound and / or stereo sound and a vehicle including the same. Through the various experiments, the inventors have invented a sound generating device having a new structure for enhancing sound pressure characteristics and a vehicle including the same.

[0007] One aspect of the present disclosure is to provide a sound generating apparatus that enhances sound pressure characteristics and / or sound characteristics and a vehicle including the sound generating apparatus.

[0008] Additional features and aspects will be described in the following description, and in part will be apparent from the description, or may be learned by practicing the inventive concepts provided herein. Other features and aspects of the inventive concepts may be realized and obtained by structures specifically pointed out in the written description or derivable therefrom, as well as the claims and drawings of the inventive concepts.

[0009] In order to achieve these and other aspects of the inventive concept, as implemented and broadly described, a sound generating device is provided, which includes: a plurality of first parts, the plurality of first parts are located in each of the first to third areas; and a plurality of second parts, the plurality of second parts are located between the plurality of first parts in each of the first to third areas, and the cross-sectional shape of two or more second parts in any one of the first to third areas is different from the cross-sectional shape of the second parts arranged in each of the other areas in the first to third areas.

[0010] According to one or more embodiments of the present disclosure, a sound generating device may be disposed based on the bending of a bendable region, thereby providing a vehicle or device for enhancing sound characteristics and / or sound pressure level characteristics.

[0011] Other systems, methods, features and advantages will be or will become apparent to one skilled in the art upon study of the following drawings and detailed description. All such additional systems, methods, features and advantages are included in this specification, fall within the scope of the present disclosure, and are protected by the appended claims. Nothing in this section shall be construed as limiting these claims. Further aspects and advantages may be discussed below in conjunction with the embodiments of the present disclosure.

[0012] It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure as claimed.

[0013] Note 1. A sound generating device, the sound generating device comprising:

[0014] a plurality of first portions located in each of the first region, the second region, and the third region; and

[0015] a plurality of second portions, the plurality of second portions being located between the plurality of first portions at each of the first to third regions,

[0016] The cross-sectional shape of the two or more second portions located at any one of the first to third regions is different from the cross-sectional shape of the second portions located at each of the other regions of the first to third regions.

[0017] Note 2. The sound generating device according to Note 1, wherein two or more first portions having a hexagonal cross-section and two or more second portions having a hexagonal cross-section are arranged in at least one region among the first region to the third region.

[0018] Supplementary note 3. The sound generating device according to Supplementary note 1, wherein any one of the first region to the third region is a curved region that can be bent from the first region to another region of the third region.

[0019] Supplement 4. The sound generating device according to Supplement 3, wherein a cross-sectional shape of the second portion disposed at a curved region among the first region to the third region is different from a cross-sectional shape of the second portion disposed at a non-curved region.

[0020] Supplementary note 5. The sound generating device according to Supplementary note 1, wherein the third region located between the first region and the second region is a bending region that can be bent from each of the first region and the second region.

[0021] Supplementary note 6. The sound generating device according to Supplementary note 5, wherein the third region is a bent region bent 90 degrees from each of the first region and the second region.

[0022] Note 7. The sound generating device according to Note 1, wherein:

[0023] Each of the plurality of first parts and the plurality of second parts comprises:

[0024] a first surface;

[0025] a second surface opposite to the first surface; and

[0026] a side surface located between the first surface and the second surface,

[0027] Any one of the first region to the third region includes a bendable region;

[0028] Side surfaces of two or more second portions at the bendable region include concave portions; and

[0029] Another second portion at another region other than the bendable region among the first to third regions includes a cross section having a quadrilateral shape.

[0030] Supplementary note 8. The sound generating device according to Supplementary note 7, wherein at least one first portion between the two or more second portions located at the bendable region includes a protruding portion protruding toward a concave portion of an adjacent second portion.

[0031] Supplementary note 9. The sound generating device according to Supplementary note 7, wherein each of the two or more second portions at the bendable region includes a cross-section having a hexagonal shape having a concave side surface.

[0032] Supplement 10. The sound generating device according to Supplement 7, wherein, in each of the two or more second portions at the bendable region:

[0033] The first surface and the second surface have the same width; and

[0034] The shortest distance between the first side surface and the second side surface that are parallel between the first surface and the second surface is smaller than the width of the first surface.

[0035] Supplementary note 11. The sound generating device according to Supplementary note 10, wherein, in one second portion of the two or more second portions at the bendable region, the first side surface and the second side surface are in contact with each other.

[0036] Note 12. The sound generating device according to Note 7, wherein:

[0037] The bendable region includes three second portions; and

[0038] The second portion at the center of the three second portions and the side second portions at both sides of the center portion have different cross-sectional shapes.

[0039] Note 13. The sound generating device according to Note 3, wherein:

[0040] The plurality of second parts have:

[0041] a first width; and

[0042] a second width that is half the height of the second portion; and

[0043] In each of the two or more second portions at the bendable region, the first width is different from the second width.

[0044] Supplement 14. The sound generating device according to Supplement 3, wherein widths of the second portions at the bending regions are different from each other.

[0045] Supplement 15. The sound generating device according to Supplement 3, wherein a width of the first portion disposed at the bending area is different from a width of the second portion disposed at the bending area.

[0046] Supplementary note 16. The sound generating device according to Supplementary note 1, wherein the plurality of first portions include an inorganic material, and the plurality of second portions include an organic material.

[0047] Supplementary note 17. The sound generating device according to Supplementary note 1, wherein widths of the first region to the third region are different from each other.

[0048] Supplementary note 18. The sound generating device according to Supplementary note 1, wherein a width of any one of the first to third regions is wider than a width of each of the other regions.

[0049] Note 19. The sound generating device according to Note 1, wherein the modulus of the second portion at any one of the first to third regions is higher than the modulus of the second portion at other regions of the first to third regions.

[0050] Note 20. A vehicle, comprising:

[0051] A vehicle interior material, the vehicle interior material comprising a vibration region including a curved portion; and

[0052] A vibration device, the vibration device being located at the vibration area, the vibration device comprising the sound generating device according to any one of Supplementary Notes 1 to 19.

[0053] Supplementary note 21. The vehicle according to Supplementary note 20, wherein any one of the first to third regions of the sound generating device is provided at the curved portion of the vibration region.

[0054] Note 22. The vehicle according to Note 20, wherein:

[0055] The vibration region further includes a peripheral portion connected to the curved portion, the vibration region having a non-curved shape,

[0056] Any one of the first to third regions of the sound generating device is located at the curved portion, and

[0057] Another area of ​​the first to third areas of the sound generating device is located at the outer peripheral portion of the vibration area.

[0058] Note 23. The vehicle according to Note 20, wherein the vehicle interior material includes one or more of plastic, fiber, leather, wood, cloth, metal and glass.

[0059] Note 24. The vehicle according to Note 20, wherein:

[0060] The vehicle interior material includes one or more of an instrument panel, a pillar interior material, a roof interior material, a door interior material, a seat interior material, a handle interior material, and a floor interior material, and

[0061] The vibration device is located at a vibration region of one or more of the instrument panel, the pillar trim material, the roof trim material, the door trim material, the seat trim material, the handle trim material, and the floor trim material.

[0062] Note 25. The vehicle according to Note 20, wherein:

[0063] The vehicle interior material includes one or more of a rearview mirror, an overhead console, a rear package interior material, a glove box, and a sun visor, and

[0064] The vibration device is located at a vibration area of ​​one or more of the rearview mirror, the overhead console, the rear package interior material, the glove box, and the sun visor. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] The accompanying drawings, which may be included to provide a further understanding of the disclosure and may be incorporated in and constitute a part of this disclosure, illustrate embodiments of the disclosure and together with the description serve to explain various principles of the disclosure.

[0066] Figure 1 A vehicle according to one or more embodiments of the present disclosure is illustrated.

[0067] Figure 2 An apparatus according to one or more embodiments of the present disclosure is illustrated.

[0068] Figure 3A and Figure 3B A device according to another embodiment of the present disclosure is illustrated.

[0069] Figure 4 A sound generating apparatus according to another embodiment of the present disclosure is illustrated.

[0070] Figure 5 A sound generating apparatus according to another embodiment of the present disclosure is illustrated.

[0071] Figure 6 A sound generating apparatus according to another embodiment of the present disclosure is illustrated.

[0072] 7A to 7C A sound generating apparatus according to another embodiment of the present disclosure is illustrated.

[0073] FIG. 8A to FIG. 8C A method of manufacturing a sound generating device according to one or more embodiments of the present disclosure is illustrated.

[0074] Fig. 9 A vehicle according to one or more embodiments of the present disclosure is illustrated.

[0075] Fig.10 A vehicle according to one or more embodiments of the present disclosure is illustrated.

[0076] Fig.11 A vehicle according to one or more embodiments of the present disclosure is illustrated.

[0077] Fig.12 A vehicle according to one or more embodiments of the present disclosure is illustrated.

[0078] Fig.13 A vehicle according to one or more embodiments of the present disclosure is illustrated.

[0079] Fig.14 Sound output characteristics according to one or more embodiments of the present disclosure are illustrated.

[0080] Throughout the drawings and detailed description, unless otherwise described, the same drawing reference numerals should be understood to refer to the same elements, features, and structures. The relative sizes and descriptions of these elements may be exaggerated for clarity, illustration, and convenience. DETAILED DESCRIPTION

[0081] Reference will now be made in detail to embodiments of the present disclosure, examples of which may be shown in the accompanying drawings. In the following description, when it is determined that a detailed description of known functions or configurations associated with this document unnecessarily obscures the main points of the inventive concept, the detailed description will be omitted. The described processing steps and / or the progression of operations are examples; however, the order of the steps and / or operations is not limited to the order set forth herein, and may be changed as known in the art, except for the steps and / or operations that must occur in a specific order. The same reference numerals always represent the same elements. The names of the various elements used in the following explanations may be selected only for ease of writing the specification, and therefore may be different from the names used in the actual product.

[0082] The advantages and features of the present disclosure and their implementation methods will be explained by the following embodiments described with reference to the accompanying drawings. However, the present disclosure can be implemented in different forms and should not be construed as being limited to the embodiments set forth herein. On the contrary, these embodiments can be provided so that the present disclosure can be sufficiently thorough and complete to help those skilled in the art fully understand the scope of the present disclosure. In addition, the present disclosure is limited only by the scope of the claims.

[0083] The shapes, sizes, ratios, angles, and quantities disclosed in the accompanying drawings for describing the embodiments of the present disclosure may be examples only. Therefore, the present disclosure is not limited to the details shown. Similar reference numerals always represent similar elements. In the following description, when it is determined that the detailed description of the relevant known functions or configurations unnecessarily obscures the main points of the present disclosure, the detailed description of the known functions or configurations may be omitted. When the terms "including", "having", and "comprising" described in the present disclosure can be used, another part may be added unless a more restrictive term such as "only" is used. Terms in the singular may include plural forms unless otherwise specified.

[0084] When interpreting an element, even if there is no explicit description of the error or tolerance range, the element is interpreted as including the error or tolerance range.

[0085] When describing a positional relationship, when the positional relationship between two components is described as, for example, "on," "over," "under," or "close to," one or more other components may be disposed between the two components, unless more restrictive terms such as "just" or "directly" are used.

[0086] When describing a temporal relationship, when the temporal order is described as, for example, "after," "subsequently," "next," or "before," discontinuous situations may be included unless more restrictive terms such as "just," "immediately," or "directly" are used.

[0087] 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 may only be used to distinguish one element from another element. For example, without departing from the scope of the present disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0088] When describing the elements of the present disclosure, the terms "first", "second", "A", "B", "(a)" and "(b)", etc. may be used. These terms may be used only to distinguish one element from another, and the nature, order or quantity of the corresponding elements should not be limited by these terms. In addition, unless otherwise specified, when an element or layer is "connected", "coupled" or "adhered" to another element or layer, this means that the element or layer can not only be directly connected or adhered to the other element or layer, but also be indirectly connected or adhered to the other element or layer and one or more intermediate elements or layers are "disposed" between the above two elements or layers.

[0089] The term "at least one" should be understood to include any and all combinations of one or more of the associated listed items. For example, the meaning of "at least one of the first, second, and third items" means all combinations of items proposed from two or more of the first, second, and third items as well as the first, second, or third item.

[0090] In the description of the embodiments, when a structure is described as being "on or over" another structure or "under or below" another structure, the description should be interpreted as including a case where these structures are in contact with each other and a case where a third structure is disposed therebetween. The size and thickness of each element shown in the drawings may be given only for convenience of description, and the embodiments of the present disclosure may not be limited thereto unless otherwise specified.

[0091] As those skilled in the art can fully understand, the features of the various embodiments of the present disclosure can be partially or entirely connected or combined with each other, and can operate and drive each other differently. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a common dependency relationship.

[0092] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by a person of ordinary skill in the art to which the example embodiments belong. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having, for example, a meaning consistent with their meaning in the context of the relevant technology, and unless explicitly defined herein, these terms should not be interpreted in an idealized or overly formal sense. For example, as will be understood by a person of ordinary skill in the art, the term "part" or "unit" may be applied to, for example, a separate circuit or structure, an integrated circuit, a computing block of a circuit device, or any structure configured to perform the described function.

[0093] Hereinafter, example embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0094] In the present disclosure, the device may include a display device including a display panel and a driver for driving the display panel, such as an organic light emitting display (OLED) module, a liquid crystal module (LCM), etc. In addition, the device may include a complete set of equipment (e.g., a complete set of equipment) or a complete set of electronic equipment as a complete product (e.g., a final product) having an LCM, an OLED module, etc., such as a notebook computer, a television, a computer monitor, an instrument device including an automotive device or another type of device for a vehicle, or a mobile electronic device such as a smart phone or an electronic tablet.

[0095] Therefore, in the present disclosure, examples of devices may include a display device itself (eg, an LCM, an OLED module, etc.) and a complete set of devices including the LCM, the OLED module, etc. as a final consumer device or application product.

[0096] In some embodiments, an LCM or OLED module including a display panel and a driver may be referred to as a display device, and an electronic device as a final product including the LCM or OLED module may be referred to as a "set". For example, a display device may include a display panel such as an LCD or an OLED, and a source printed circuit board (PCB) as a controller for driving the display panel. The set may also include a set printed circuit board, which is a set controller electrically connected to the source printed circuit board to control the set as a whole.

[0097] The display panel applied to one or more embodiments of the present disclosure may use all types of display panels, such as a liquid crystal display panel, an organic light emitting diode (OLED) display panel, and an electroluminescent display panel, but the embodiments of the present disclosure are not limited thereto. For example, the display panel may be a display panel capable of generating sound by vibrating a vibration device according to one or more embodiments of the present disclosure. The display panel applied to the display device according to one or more embodiments of the present disclosure is not limited to the shape or size of the display panel.

[0098] For example, when the display panel is a liquid crystal display panel, the display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels respectively arranged in a plurality of pixel areas defined by intersections of the gate lines and the data lines. In addition, the display panel may include an array substrate, an upper substrate, and a liquid crystal layer, wherein the array substrate includes a thin film transistor (TFT) as a switching element for adjusting the transmittance of each of the plurality of pixels, the upper substrate includes a color filter and / or a black matrix, etc., and the liquid crystal layer is located between the array substrate and the upper substrate.

[0099] When the display panel is an organic light emitting display panel (OLED), the display panel may include a plurality of gate lines, a plurality of data lines, and a plurality of pixels respectively arranged in a plurality of pixel areas defined by the intersections of the gate lines and the data lines. In addition, the display panel may include an array substrate, an organic light emitting device layer, and an encapsulation substrate, wherein the array substrate includes a TFT as an element for selectively applying a voltage to each pixel, the organic light emitting device layer is located on the array substrate, and the encapsulation substrate is arranged at the array substrate to cover the organic light emitting device layer. The encapsulation substrate may protect the TFT and the organic light emitting device layer from external impacts, and may reduce or prevent water or oxygen from penetrating into the organic light emitting device layer. In addition, the layer arranged on the array substrate may include an inorganic light emitting layer, for example, a nano-sized material layer, a quantum dot, a light emitting layer, etc. As another embodiment of the present disclosure, the layer arranged on the array substrate may include a micro light emitting diode.

[0100] The display panel may further include a backing attached to the display panel, such as a metal plate. However, the embodiments of the present disclosure are not limited to the metal plate, and the display panel may also include another structure.

[0101] As those skilled in the art can fully understand, the features of the various embodiments of the present disclosure can be partially or completely connected or combined with each other, and can interoperate and drive each other technically differently. The embodiments of the present disclosure can be performed independently of each other, or can be performed together in a mutually dependent relationship.

[0102] Hereinafter, a sound generating device for a vehicle and a vehicle including the sound generating device according to an embodiment of the present disclosure will be described in detail with reference to the accompanying drawings. When adding reference numerals to the elements of each drawing, similar reference numerals may represent similar elements even though the same elements are shown in other drawings. In addition, for ease of description, the scale of each element shown in the drawings is different from the actual scale and is therefore not limited to the scale shown in the drawings.

[0103] Figure 1 A vehicle according to one or more embodiments of the present disclosure is illustrated.

[0104] Reference Figure 1 The vehicle 100 according to one or more embodiments of the present disclosure may include an interior material (eg, an interior finishing material) 130, a vehicle glass window 230, and a side glass window 230B. The interior material 130 may be referred to as a vehicle interior material. Figures 9 to 13 A vehicle 100 is described.

[0105] The vehicle interior material 130 may include all elements constituting the interior of the vehicle 100. For example, the vehicle interior material 130 may be an interior member or an interior finishing material of the vehicle 100, but the embodiments of the present disclosure are not limited thereto.

[0106] The vehicle interior material 130 according to one or more embodiments of the present disclosure may include a material containing one or more materials of metal, plastic, fiber, leather, wood, cloth and glass, but the embodiments of the present disclosure are not limited thereto. For example, the vehicle interior material 130 including a plastic material may include an injection molding material. The vehicle interior material 130 including a plastic material may be an injection molding material realized by an injection molding process (e.g., an injection molding process) using a thermoplastic resin or a thermosetting resin, but the embodiments of the present disclosure are not limited thereto. The vehicle interior material 130 including a fiber material may include one or more of a plastic composite fiber, a carbon fiber (e.g., an aramid fiber) and a natural fiber. The surface member including the fiber material may include a textile sheet, a knitted sheet or a non-woven fabric, but the embodiments of the present disclosure are not limited thereto. The vehicle interior material 130 including a leather material may include natural leather or artificial leather, but the embodiments of the present disclosure are not limited thereto.

[0107] The vehicle interior material 130 according to one or more embodiments of the present disclosure may include an instrument panel 130A, a pillar interior material 130B, a roof interior material 130C, a door interior material 130D, a seat interior material 130E, a handle interior material 130F, and a floor interior material 130G.

[0108] According to one or more embodiments of the present disclosure, the vibration device 30 may be disposed at the vehicle interior material 130, and may vibrate the vehicle interior material 130 to generate sound based on the vibration of the vehicle interior material 130. For example, the vibration device 30 may directly vibrate the vehicle interior material 130 to generate sound based on the vibration of the vehicle interior material 130. For example, the vibration device 30 may include one or more sound generating devices 31A to 31P, which may be disposed at one or more of the instrument panel 130A, the pillar interior material 130B, the roof interior material 130C, the door interior material 130D, the seat interior material 130E, the handle interior material 130F, the floor interior material 130G, the rear package interior material, the overhead console, the rearview mirror, the glove box, and the sun visor. The embodiment is not limited to these examples.

[0109] The vibration device 30 may include sound generating devices 31A to 31P. The sound generating devices 31A to 31P may be covered by the vehicle interior material 130. For example, the sound generating devices 31A to 31P may be between the vehicle structure and the vehicle interior material 130, or may be provided at the vehicle interior material 130.

[0110] The sound generating devices 31A to 31P may be configured to vibrate the vehicle interior material 130 to output sound toward one or more of the interior (e.g., interior) or the vehicle interior space (e.g., interior space) of the vehicle 100. According to one or more embodiments of the present disclosure, the sound generating devices 31A to 31P may vibrate the vehicle interior material 130 to generate sound based on the vibration of the vehicle interior material 130. For example, the sound generating devices 31A to 31P may vibrate (or directly vibrate) the vehicle interior material 130 to generate sound based on the vibration of the vehicle interior material 130. The vehicle interior material 130 may perform the function of a vibration plate, a sound vibration plate, or a sound generating plate for outputting sound. For example, the vehicle interior material 130 may have a size larger than that of the sound generating devices 31A to 31P, and thus may perform the function of a vibration plate, a sound vibration plate, or a sound generating plate having a large area, thereby enhancing the sound characteristics of the low-pitched vocal band of the vibration device 30. For example, the sound frequency of the low-pitched vocal band may be 500 Hz or less, but the embodiments of the present disclosure are not limited thereto.

[0111] The sound generating devices 31A to 31P according to one or more embodiments of the present disclosure may include a coil type sound generator. For example, the sound generator may be referred to as an "actuator", "exciter", "transducer", etc., but the embodiments of the present disclosure are not limited thereto.

[0112] The vehicle interior material 130 according to one or more embodiments of the present disclosure may include one or more of a flat portion (e.g., a flat surface portion) and a curved portion (or a curved surface portion). For example, the surface structure of the vehicle interior material 130 may correspond to the surface structure of the corresponding vehicle structure, or may be different from the surface structure of the corresponding vehicle structure.

[0113] The sound generating device may be configured with a film-type sound generator based on the shape of the vehicle interior material 130. When the film-type sound generator includes ceramics, the film-type sound generator may be thin and light, but there may be a problem that it is difficult to apply the film-type sound generator to a large-area device and it may be difficult to apply the film-type sound generator to a device including a curved portion. When the sound generating devices 31A to 31P are configured with a film-type sound generator including a piezoelectric composite material, there may be a problem that the sound pressure level characteristics are reduced compared to the coil-type sound generator. The coil-type sound generator may have a problem that the thickness of the device may become thicker and it may be difficult to place the coil-type sound generator at the curved portion of the vehicle interior material 130. Therefore, the inventors of the present disclosure have conducted various experiments to realize a sound generating device in which, although a film-type sound generator is configured, the thickness of the device does not become thicker, the sound is enhanced, and the sound generating device may also be able to be placed at a curved portion.

[0114] Therefore, based on various experiments, the inventors invented a sound generating device having a new structure, which can be applied to a device or a vehicle including a curved portion. This will be described below.

[0115] Figure 2 An apparatus according to one or more embodiments of the present disclosure is illustrated.

[0116] Reference Figure 2 , a device (eg, a vehicle) according to one or more embodiments of the present disclosure may include a vehicle interior material 130 and a sound generating device 20 provided at the vehicle interior material 130. The sound generating device 20 may be provided in plural.

[0117] According to one or more embodiments of the present disclosure, the sound generating device 20 may include a film-type sound generator. The sound generating device 20 may have a problem that it may be difficult to apply the sound generating device 20 to a curved portion of the vehicle interior material 130. For example, when bending deformation is applied to a film-type sound generator to be applied to a curved portion, ceramics with insufficient flexibility may break at the curved portion, or the adhesive force of the film-type sound generator may be reduced at the curved portion. Therefore, the inventors have conducted various experiments on a sound generating device that can be applied to a curved portion. Based on the various experiments, the inventors have invented a sound generating device that can be applied to a curved portion. This will be described below.

[0118] Figure 3A and Figure 3B A device according to another embodiment of the present disclosure is illustrated.

[0119] Reference Figure 3A and Figure 3B, an apparatus according to another embodiment of the present disclosure may include a vehicle interior material 130 and a sound generating apparatus provided at the vehicle interior material 130 .

[0120] The vehicle interior material 130 according to another embodiment of the present disclosure may include one or more of an instrument panel 130A, a roof interior material 130C, and a door interior material 130D.

[0121] The vehicle interior material 130 may include a vibration region, and the vibration region includes a curved portion. For example, a vibration device may be disposed in the vibration region. For example, the vehicle interior material 130 may include a first region, a second region, and a third region. For example, the third region may be located between the first region and the second region.

[0122] The first sound generating device 51 may be disposed at a first area of ​​the vehicle interior material 130. The second sound generating device 53 may be disposed at a third area of ​​the vehicle interior material 130. The third sound generating device 55 may be disposed at a second area of ​​the vehicle interior material 130. For example, any one of the first to third areas may be an area that can be bent from other areas. For example, the third area may be a curved area that can be bent 90 degrees from each of the first and second areas. However, the embodiments of the present disclosure are not limited thereto. For example, the third area may be a curved area that can be bent less than 90 degrees or more than 90 degrees from each of the first and second areas. For example, each of the first to third sound generating devices 51 to 55 may be one or a single sound generating device. The fourth sound generating device 57 may be disposed adjacent to the first to third sound generating devices 51 to 55.

[0123] Reference Figure 3B , the first sound generating device 51 may include a plurality of first parts 51a and a plurality of second parts 51b. For example, the second part 51b may be disposed between two adjacent first parts 51a. For example, the plurality of first parts 51a and the plurality of second parts 51b may be arranged alternately and repeatedly.

[0124] According to one or more embodiments of the present disclosure, the first portion 51a may include an inorganic material, and the second portion 51b may include an organic material. For example, the first portion 51a may have piezoelectric properties, and the second portion 51b may have ductility properties or flexibility. For example, the inorganic material of the first portion 51a may have piezoelectric properties, and the organic material of the second portion 51b may have ductility properties or flexibility.

[0125] According to one or more embodiments of the present disclosure, each of the plurality of second parts 51b may be disposed between the plurality of first parts 51a. For example, in the first sound generating device 51 disposed in the first area, the first part 51a and the second part 51b may have the same shape.

[0126] According to one or more embodiments of the present disclosure, in the third sound generating device 55 disposed in the second area, the first portion 55a and the second portion 55b may have the same shape. For example, the third sound generating device 55 may include a first portion 55a and a second portion 55b located between the first portion 55a. For example, the first sound generating device 51 and the third sound generating device 55 may be configured identically (e.g., identically).

[0127] The second sound generating device 53 may be disposed in a third region between the first region and the second region. For example, the third region may be a curved region that can be bent from each of the first region and the second region. For example, the second portion 53b of the second sound generating device 53 disposed at the third region may have a shape different from the second portions 51b and 55b disposed in each of the second region and the third region. For example, in the second sound generating device 53 disposed in the third region, the second portion 53b may have a shape different from the first portion 53a. The second sound generating device 53 may have a shape different from each of the first sound generating device 51 and the third sound generating device 55, and thus may be disposed in a bendable region (although vertical bending deformation may occur when disposed in a curved region), thereby solving the problem that the first portion 53a may be broken or the adhesive force may be reduced. Therefore, a device or vehicle having enhanced sound pressure level characteristics and / or sound characteristics may be provided.

[0128] According to one or more embodiments of the present disclosure, the second sound generating device 53 may not be detached or separated from each of the first sound generating device 51 and the third sound generating device 55, but may be physically connected to the first sound generating device 51, and may be physically connected to the third sound generating device 55. For example, the second sound generating device 53 may be physically connected to a side surface (e.g., an outer side or a side wall) of each of the first sound generating device 51 and the third sound generating device 55. Therefore, the first sound generating device 51 to the third sound generating device 55 may be implemented as a single structural material or a membrane.

[0129] The first part 51a and the second part 51b of the first sound generating device 51 will be described below. The description may also apply to the first part 53a and the second part 53b of the second sound generating device 53 and the first part 55a and the second part 55b of the third sound generating device 55. The fourth sound generating device 57 may be configured the same as the first part 51a and the second part 51b of the first sound generating device 51. As one or more embodiments of the present disclosure, the fourth sound generating device 57 may be configured the same as the first part 55a and the second part 55b of the third sound generating device 55.

[0130] The inorganic material portion included in each of the plurality of first portions 51a may include a ceramic-based material configured to generate a higher vibration, or may include a piezoelectric ceramic having a perovskite crystal structure. The perovskite crystal structure may have a piezoelectric effect and an inverse piezoelectric effect, and may be a plate-like structure having a direction. The perovskite crystal structure may be represented by the chemical formula "ABO3". In the chemical formula, "A" may include a divalent metal element, and "B" may include a tetravalent metal element. For example, in the chemical formula "ABO3", "A" and "B" may be cations, and "O" may be anions. For example, the first portion 51a may include one or more of lead (II) titanate (PbTiO3), lead zirconate (PbZrO3), lead zirconate titanate (PbZrTiO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3), but embodiments of the present disclosure are not limited thereto.

[0131] In the perovskite crystal structure, the position of the central ion can be changed by external stress or magnetic field to change the polarization, and a piezoelectric effect can be generated based on the change in polarization. In the perovskite crystal structure including PbTiO3, the position of the titanium (Ti) ion corresponding to the central ion can be changed to change the polarization, so a piezoelectric effect can be generated. For example, in the perovskite crystal structure, the cubic shape with a symmetrical structure can be changed into a quadrilateral shape, an orthorhombic shape, and a rhombus shape each having an asymmetric structure by using external stress or magnetic field, so a piezoelectric effect can be generated. At the quasi-modular phase boundary (MPB) of the quadrilateral structure and the rhombus structure, the polarization may be high, and the polarization may be easily realigned, thereby obtaining high piezoelectric properties.

[0132] According to one or more embodiments of the present disclosure, the inorganic material portion included in each of the multiple first portions 51a may include one or more materials of lead (Pb), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni) and niobium (Nb), but the embodiments of the present disclosure are not limited thereto.

[0133] According to one or more embodiments of the present disclosure, the inorganic material portion included in each of the plurality of first portions 51a may include a lead zirconate titanate (PZT)-based material containing lead (Pb), zirconium (Zr) and titanium (Ti); or may include a lead zirconate nickel niobate (PZNN)-based material containing lead (Pb), zirconium (Zr), nickel (Ni) and niobium (Nb), but the embodiments of the present disclosure are not limited thereto. In addition, the inorganic material portion may include one or more of calcium titanate (CaTiO3), BaTiO3 and SrTiO3, all of which do not contain Pb, but the embodiments of the present disclosure are not limited thereto.

[0134] According to another embodiment of the present disclosure, the inorganic material portion included in each of the plurality of first portions 51a may have a piezoelectric deformation coefficient "d 2" of 1000 pC / N or more in the thickness direction Z. 33 "". The vibration device may be applied to a display panel having a large size and may need to have a high piezoelectric deformation coefficient "d 33 ", in order to have sufficient vibration characteristics or piezoelectric characteristics. For example, in order to have a high piezoelectric deformation coefficient "d 33 ", the inorganic material portion may include a PZT-based material (PbZrTiO3) as a main component, and may include a softener dopant material doped into the "A" site (Pb) and a relaxor ferroelectric material doped into the "B" site (ZrTi).

[0135] The softener doped material can enhance the piezoelectric and dielectric properties of the inorganic material portion, and can, for example, increase the piezoelectric deformation coefficient "d 33 ". The softener doping material according to one or more embodiments of the present disclosure may include a divalent element "+2" to a trivalent element "+3". By adding a softener doping material to the PZT-based material (PbZrTiO3), a morphotropic phase boundary (MPB) may be achieved, and thus the piezoelectric and dielectric properties may be enhanced. For example, the softener doping material may include one or more of strontium (Sr), barium (Ba), lanthanum (La), neodymium (Nd), calcium (Ca), yttrium (Y), erbium (Er), or ytterbium (Yb). For example, the ions of the softener doping material (e.g., Sr) doped into the PZT-based material (PbZrTiO3) 2+ , Ba 2+ ,La 2+ 、Nd 3+ , Ca 2+ , Y 3+ , Er 3+ and Yb 3+) can replace a portion of lead (Pb) in the PZT-based material (PbZrTiO3), and its substitution rate can be about 2 mol% to about 20 mol%. For example, when the substitution rate is less than 2 mol% or greater than 20 mol%, the perovskite crystal structure may be broken, and thus the electromechanical coupling coefficient "kP" and the piezoelectric deformation coefficient "d 33 " may be reduced. When the softener doping material is replaced, an MPB can be formed, and the piezoelectric properties and dielectric properties can be higher in the MPB, thereby realizing a vibration device with high piezoelectric properties and high dielectric properties.

[0136] According to one or more embodiments of the present disclosure, the relaxor ferroelectric material doped into the PZT-based material (PbZrTiO3) can enhance the electrodeformation characteristics of the inorganic material portion. The relaxor ferroelectric material according to one or more embodiments of the present disclosure may include a lead magnesium niobate (PMN)-based material or a lead nickel niobate (PNN)-based material, but the embodiments of the present disclosure are not limited thereto. The PMN-based material may include Pb, Mg, and Nb, and may, for example, include Pb(Mg, Nb)O3. The PNN-based material may include Pb, Ni, and Nb, and may, for example, include Pb(Ni, Nb)O3. For example, the relaxor ferroelectric material doped into the PZT-based material (PbZrTiO3) may replace a portion of each of zirconium (Zr) and titanium (Ti) in the PZT-based material (PbZrTiO3), and the replacement rate thereof may be about 5 mol% to about 25 mol%. For example, when the substitution rate is less than 5 mol% or greater than 25 mol%, the perovskite crystal structure may be broken, so the electromechanical coupling coefficient "kP" and the piezoelectric deformation coefficient "d 33 "May be reduced.

[0137] According to one or more embodiments of the present disclosure, the inorganic material portion included in each of the plurality of first portions 51a may also include a donor material doped into the "B" site (ZrTi) of the PZT-based material (PbZrTiO3) to further enhance the piezoelectric coefficient. For example, the donor material doped into the "B" site (ZrTi) may include a tetravalent element "+4" or a hexavalent element "+6". For example, the donor material doped into the B site (ZrTi) may include one or more of tellurium (Te), germanium (Ge), uranium (U), bismuth (Bi), niobium (Nb), tantalum (Ta), antimony (Sb) or tungsten (W).

[0138] The inorganic material portion included in each of the plurality of first portions 51a according to one or more embodiments of the present disclosure may have a piezoelectric deformation coefficient "d 20" of 1000 pC / N or more in the thickness direction Z. 33 ”, thereby realizing a sound generating device with enhanced vibration characteristics.

[0139] The second part 51b may be disposed between the plurality of first parts 51a, or may be disposed around each of the plurality of first parts 51a. Therefore, in the sound generating device, the vibration energy based on the link in the unit grid of each first part 51a may be increased by the second part 51b. Therefore, the vibration characteristics may be increased, and the piezoelectric characteristics and flexibility may be ensured. For example, the second part 51b may include one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicon-based polymer, but the embodiments of the present disclosure are not limited thereto.

[0140] The second part 51b according to one or more embodiments of the present disclosure may be configured with an organic material part. For example, each of the organic material parts may be disposed between two adjacent inorganic material parts in the inorganic material part, and may absorb the impact applied to the inorganic material part (e.g., the first part), may release the stress concentrated on the inorganic material part to enhance the durability of the sound generating device, and may make the sound generating device flexible.

[0141] The second portion 51b according to one or more embodiments of the present disclosure may have a lower modulus and viscoelasticity than each first portion 51a. Therefore, the second portion 51b may enhance the reliability of each first portion 51a that is susceptible to impact due to its fragile characteristics. For example, the second portion 51b may include a material having a loss factor of about 0.01 to about 1.0 and a modulus of about 0.1 gigapascals (GPa) to about 3 GPa.

[0142] The organic material portion included in the second portion 51b may include one or more of an organic material, an organic polymer, an organic piezoelectric material, and an organic non-piezoelectric material having a flexible property or a ductile property compared to the inorganic material portion of the first portion 51a. For example, the second portion 51b may be referred to as an "adhesive portion", "stretching portion", "bending portion", "damping portion", "flexible portion", etc., but the embodiments of the present disclosure are not limited thereto.

[0143] In the sound generating device according to one or more embodiments of the present disclosure, a plurality of first parts and second parts may be arranged on (e.g., connected to) the same plane. Therefore, the sound generating device may have a single film type. For example, the sound generating device may vibrate in a vertical direction by a first part 51a having a vibration characteristic, and may be bent into a curved shape by a second part 51b having flexibility or ductility. Therefore, the sound generating device may be easily applied to a device or vehicle including a curved portion.

[0144] Therefore, according to one or more embodiments of the present disclosure, the sound generated by the vibration of the vehicle interior material 130 based on the vibration of one or more sound generating devices can be output toward the interior space of the vehicle. Therefore, the vehicle interior material 130 can be used as a sound vibration plate. According to one or more embodiments of the present disclosure, each sound generating device for the vehicle provided in the vehicle interior material 130 can vibrate the corresponding vehicle interior material 130 to output multi-channel real sound or sound including stereo toward the interior space of the vehicle 100.

[0145] Figure 4 illustrates a sound generating device according to another embodiment of the present disclosure, Figure 5 illustrates a sound generating device according to another embodiment of the present disclosure, Figure 6 A sound generating apparatus according to another embodiment of the present disclosure is illustrated.

[0146] Reference Figures 4 to 6 , a sound generating device according to another embodiment of the present disclosure may include a first sound generating device 51, a second sound generating device 53, and a third sound generating device 55. For example, any one of the first to third regions may be a curved region that can be bent 90 degrees from other regions or from adjacent regions. For example, the third region may be located between the first and second regions. For example, the third region may be a curved region that can be bent 90 degrees from each of the first and second regions. The term "bendable region" may be used interchangeably with the term "bending region". The first sound generating device 51 may be disposed at the first region, the third sound generating device 55 may be disposed at the second region, and the second sound generating device 53 may be disposed at the third region.

[0147] Reference Figure 4 , the first sound generating device 51 may include a first portion 51a and a second portion 51b. For example, the second portion 51b may be disposed at the same interval as the first portion 51a. For example, the second portion 51b may be a flat pillar, but embodiments of the present disclosure are not limited thereto.

[0148] According to one or more embodiments of the present disclosure, the third sound generating device 55 may include a first portion 55a and a second portion 55b. For example, the second portion 55b may be arranged to be spaced the same interval as the first portion 55a. For example, the second portion 55b may be a flat support, but the embodiments of the present disclosure are not limited thereto. For example, the first sound generating device 51 and the third sound generating device 55 may be configured identically (e.g., identically).

[0149] According to one or more embodiments of the present disclosure, each of the first parts 51a, 53a and 55a and the second parts 51b, 53b and 55b of the first sound generating device 51 to the third sound generating device 55 may include a first surface and a second surface opposite to the first surface, and further, may include a side surface located between the first surface and the second surface.

[0150] According to one or more embodiments of the present disclosure, the second sound generating device 53 may include a first portion 53a and a second portion 53b. For example, the second portion 53b including an organic material may be disposed at a curved region. For example, the second portion 53b may be a curved polymer pillar, but embodiments of the present disclosure are not limited thereto.

[0151] The second portion 53b of the third region may have a shape different from each of the second portions 51b and 55b respectively disposed in the first region and the second region. For example, the side surface of the second portion 53b of the third region may include a concave portion. The second portion of the region other than the bendable region of the first region to the third region may include a cross section having a quadrilateral shape. For example, each of the second portions 51b and 55b respectively disposed at the first region and the second region may include a cross section having a quadrilateral shape.

[0152] At least one first portion 53a disposed between two or more second portions 53b disposed at the bendable region may include a protruding portion protruding toward a concave portion of a second portion 53b adjacent to the at least one first portion 53a. For example, each of the two or more second portions 53b disposed at the bendable region may include a cross section having a concave hexagonal shape on its side surface. The first portion 53a of the bending region may include a protruding portion protruding toward a concave portion of a second portion 53b adjacent thereto. For example, the second portion 53b of the bendable region may include a cross section having a concave hexagonal shape on its side surface.

[0153] According to one or more embodiments of the present disclosure, the bendable region may include three second parts. For example, in each of the two or more second parts 53b provided at the bendable region, the first surface and the second surface thereof may have the same width. For example, each of the two or more second parts 53b provided in the bendable region may include a first side surface and a second side surface parallel to the first surface and the second surface, and the shortest distance between the first side surface and the second side surface may be less than the width of the first surface. For example, in one of the two or more second parts 53b provided in the bendable region, the first side surface and the second side surface may contact each other.

[0154] According to one or more embodiments of the present disclosure, the second part 53b of the second sound generating device 53 may be arranged to correspond to the central part of the bendable area. For example, the second part 53b corresponding to the central part of the three second parts 53b in the bendable area may be a part where stress can be concentrated. Therefore, the part where stress can be concentrated may have a shape different from the shape of the part where stress can be less concentrated. For example, the second part 53b arranged at the central part of the bendable area may have a shape different from the shape of the other second parts 53b of the bending area. For example, the second part 53b corresponding to the central part of the three second parts 53b in the bendable area may have a cross-sectional shape different from the cross-sectional shape of each of the other second parts 53b on both sides. Therefore, the second sound generating device 53 will not be destroyed by the second part 53b corresponding to the central part of the bending area. Therefore, the reliability of the second sound generating device 53 can be ensured.

[0155] Relative to the overall area including the first area, the second area, and the third area, the second sound generating device 53 may be disposed in an area of ​​about 30% to about 70%. The third area may be a bendable area that can be bent from the first area and the second area. For example, the area in which the second sound generating device 53 is disposed may vary based on the radius of curvature of the bendable area. For example, when the radius of curvature R of the curved area is less than 100R, the second sound generating device 53 may be disposed in an area of ​​about 50% to about 70%. For example, when the radius of curvature R of the curved area is greater than 100R, the second sound generating device 53 may be disposed in an area of ​​about 30% to about 50%.

[0156] Reference Figure 5 , the modulus of the second part provided in one area among the first area to the third area may be different from the modulus of the second part provided in the other areas. For example, the modulus of the second part 61b of the first sound generating device 61 may be different from the modulus of the second part 63b of the second sound generating device 63. For example, the modulus of the second part 61b of the first sound generating device 61 may be configured to be higher than the modulus of the second part 63b of the second sound generating device 63. For example, the second part 61b of the first sound generating device 61 may be an epoxy composite material having a high modulus. For example, the second part 63b of the second sound generating device 63 may be an epoxy composite material to which a filler or epoxy resin having a low modulus may be added. For example, the modulus of the second part 61b of the first sound generating device 61 may be 10 9 Pascal (Pa), for example, 1 GPa. For example, the modulus of the second portion 63b of the second sound generating device 63 may be 10 7 Pa, for example, 0.01 GPa.

[0157] The modulus of the second portion 65b of the third sound generating device 65 may be different from the modulus of the second portion 63b of the second sound generating device 63. For example, the modulus of the second portion 65b of the third sound generating device 65 may be configured to be higher than the modulus of the second portion 63b of the second sound generating device 63. For example, the modulus of the second portion 65b of the third sound generating device 65 may be 10 9 Pa, for example, 1 GPa. For example, the modulus of the second portion 63b of the second sound generating device 63 may be 10 7 Pa, for example, 0.01 GPa.

[0158] According to one or more embodiments of the present disclosure, the modulus of the second portion 61 b ​​of the first sound generating device 61 may be configured to be equal to the modulus of the second portion 65 b of the third sound generating device 65 .

[0159] Reference Figure 6 , the width of each of the first to third regions may be different from each other. One of the first to third regions may have a width wider than the other regions. For example, the third region may have a width wider than each of the first and second regions.

[0160] The width of the second portion 71b of the first sound generating device 71 may be different from the width of the second portion 73b of the second sound generating device 73. For example, the width of the second portion 73b of the second sound generating device 73 may be wider than the width of the second portion 71b of the first sound generating device 71. For example, the width of the second portion 73b of the second sound generating device 73 may be configured to be approximately 1.5 to 3 times the width of the second portion 71b of the first sound generating device 71, but embodiments of the present disclosure are not limited thereto.

[0161] The width of the second portion 75b of the third sound generating device 75 may be different from the width of the second portion 73b of the second sound generating device 73. For example, the width of the second portion 73b of the second sound generating device 73 may be configured to be wider than the width of the second portion 75b of the third sound generating device 75. For example, the width of the second portion 73b of the second sound generating device 73 may be adjusted to be about 1.5 to 3 times the width of the second portion 75b of the third sound generating device 75, but the embodiments of the present disclosure are not limited thereto. For example, the width of the second portion 71b of the first sound generating device 71 may be equal to the width of the second portion 75b of the third sound generating device 75.

[0162] The widths of the second parts 73b of the second sound generating devices 73 may be different from each other. For example, the width of the second part 73b of the second sound generating device 73 may be different from the width of the first part 73a. The widths of the second parts 71b of the first sound generating devices 71 may be the same. For example, the widths of the first parts 71a of the first sound generating devices 71 may be the same. The widths of the second parts 75b of the third sound generating devices 75 may be the same. For example, the widths of the first parts 75a of the third sound generating devices 75 may be the same.

[0163] According to another embodiment of the present disclosure, the width of the first portion 71a of the first sound generating device 71 may be different from the width of the first portion 73a of the second sound generating device 73. For example, the width of the first portion 73a of the second sound generating device 73 may be wider than the width of the first portion 71a of the first sound generating device 71. For example, the width of the first portion 73a of the second sound generating device 73 may be adjusted to be approximately 1.5 to 3 times the width of the first portion 71a of the first sound generating device 71, but embodiments of the present disclosure are not limited thereto.

[0164] The width of the first portion 75a of the third sound generating device 75 may be different from the width of the first portion 73a of the second sound generating device 73. For example, the width of the first portion 73a of the second sound generating device 73 may be wider than the width of the second portion 75b of the third sound generating device 75. For example, the width of the second portion 73b of the second sound generating device 73 may be configured to be approximately 1.5 to 3 times the width of the first portion 75a of the third sound generating device 75, but embodiments of the present disclosure are not limited thereto. For example, the width of the first portion 71a of the first sound generating device 71 may be configured to be equal to the width of the first portion 75a of the third sound generating device 75.

[0165] According to one or more embodiments of the present disclosure, the width and / or interval of the second part of the sound generating device can be adjusted differently in a vehicle or device including a bendable region. Therefore, the sound generating device can be easily arranged at the bendable region, thereby providing a sound generating device that can ensure the stability of the bent portion.

[0166] According to one or more embodiments of the present disclosure, the width and / or modulus of the sound generating device disposed at the bendable region may be adjusted differently, or the shape of the second portion may be configured differently. Therefore, the sound generating device may be easily disposed based on the shape of the bendable region, thereby providing a vehicle or device with enhanced reliability.

[0167] 7A to 7C A sound generating apparatus according to another embodiment of the present disclosure is illustrated.

[0168] 7A to 7C The shape of the second part of the sound generating device is illustrated.

[0169] Reference Fig. 7A , the second parts 51b, 55b, 61b, 65b, 71b and 75b may have a first width 'a' and a second width 'b'. The second width 'b' may be the width of a portion of 1 / 2 of the height of the second parts 51b, 55b, 61b, 65b, 71b and 75b. The second width 'b' may be the width of a portion of half the height of the second parts 51b, 55b, 61b, 65b, 71b and 75b. The first width 'a' may be the same as the second width 'b'. For example, the ratio of the second width 'b' to the first width 'a' may be 1. For example, the second width 'b' divided by the first width 'a' may be equal to 1. For example, the second parts 51b, 55b, 61b, 65b, 71b and 75b may each include a first surface and a second surface opposite to the first surface. The length or width of the first surface may be the same as the length or width of the second surface. For example, the second portions 51b, 55b, 61b, 65b, 71b and 75b may be applied to the above reference Figures 3A to 6 The first sound generating devices 51, 61, and 71 and the third sound generating devices 55, 65, and 75 are described. For example, the height or thickness of the sound generating device may be 100 μm to 200 μm, but the embodiments of the present disclosure are not limited thereto.

[0170] Reference Figure 7B , the second parts 53b, 63b and 73b may have a first width a' and a second width b'. The second width b' may be a width of a portion of 1 / 2 of the height of the second parts 53b, 63b and 73b. For example, the ratio of the second width b' to the first width a' may be 0.8. For example, the second width b' divided by the first width a' may be 0.8. For example, the first width a' may be 30μm to 500μm, but embodiments of the present disclosure are not limited thereto. For example, the height or thickness of the sound generating device may be 100μm to 200μm, but embodiments of the present disclosure are not limited thereto.

[0171] According to one or more embodiments of the present disclosure, two or more second portions 53b, 63b, and 73b disposed in the bendable region may each have a first width a' and a second width b', and the shortest distance between the first side surface and the second side surface having the second width b' may be less than the first width a'. For example, in one of the two or more second portions 53b, 63b, and 73b disposed in the bendable region, the first side surface and the second side surface may contact each other. For example, each of the second portions 53b, 63b, and 73b may include a first surface and a second surface opposite to the first surface. The length or width of the first surface may be different from the second surface. For example, the length or width of the first surface divided by the length or width of the second surface may be 0 to 0.8.

[0172] According to one or more embodiments of the present disclosure, the second portions 53b, 63b, and 73b may be applied to the above-mentioned Figures 3A to 6 The second sound generating devices 53, 63 and 73 described above. For example, the second parts 53b, 63b and 73b can be arranged in the above reference Figures 3A to 6 The second sound generating device 53, 63 and 73 described above can be applied to the bendable area. For example, the second portion 53b, 63b and 73b can be applied to the bendable area of ​​the second sound generating device 53, 63 and 73 described above. Figures 3A to 6 The second sound generating devices 53, 63 and 73 are described as having the second portions 53b, 63b and 73b located on both sides of the center of the three second portions 53b, 63b and 73b.

[0173] Reference Figure 7C , the second portions 53b, 63b, and 73b may have a first width a' and a second width b'. The second width b' may be a width of a portion of 1 / 2 of the height of the second portions 53b, 63b, and 73b. For example, the ratio of the second width b' to the first width a' may be 0. For example, the second width b' divided by the first width a' may be 0.

[0174] According to one or more embodiments of the present disclosure, two or more second portions 53b, 63b, and 73b disposed in the bendable region may each have a first width a' and a second width b', and the shortest distance between the first side surface and the second side surface having the second width b' may be less than the first width a'. For example, in one of the two or more second portions 53b, 63b, and 73b disposed at the bendable region, the first side surface and the second side surface may contact each other. For example, each of the second portions 53b, 63b, and 73b may include a first surface and a second surface opposite to the first surface. The length or width of the first surface may be different from the second surface. For example, the length or width of the first surface divided by the length or width of the second surface may be 0 to 0.8.

[0175] According to one or more embodiments of the present disclosure, the second portions 53b, 63b, and 73b may be applied to the above-mentioned Figures 3A to 6 The second sound generating devices 53, 63 and 73 described above. For example, the second parts 53b, 63b and 73b can be arranged in the above reference Figures 3A to 6 The second sound generating device 53, 63 and 73 described above can be applied to the bendable area. For example, the second portion 53b, 63b and 73b can be applied to the bendable area of ​​the second sound generating device 53, 63 and 73 described above. Figures 3A to 6 The second sound generating devices 53, 63, and 73 are described as the second portions 53b, 63b, and 73b provided at the center or the center portion of the three second portions 53b, 63b, and 73b.

[0176] According to one or more embodiments of the present disclosure, the vertical length and / or width of the second portion of the sound generating device can be adjusted differently in a vehicle or device including a bendable region. Therefore, the sound generating device can be easily disposed in the bendable region, thereby providing a sound generating device that can ensure the stability of the bent portion.

[0177] According to one or more embodiments of the present disclosure, the shape of the second portion of the sound generating device can be differently configured in a vehicle or device including a bendable area, and thus, the sound generating device can be easily set in the bendable area, thereby providing a vehicle or device with enhanced reliability.

[0178] FIG. 8A to FIG. 8C A method of manufacturing a sound generating device according to one or more embodiments of the present disclosure is illustrated.

[0179] Reference Fig. 8A and Figure 8B , the first parts 51a and 55a may be formed by a cutting process performed at, for example, the plate 10. The plate 10 may be a ceramic piezoelectric plate. In the cutting process, the sound generating device may be cut so that the width of its upper surface in the bending direction is wider than that of its lower surface. Figure 8C , the second part can be filled between adjacent first parts. For example, more second parts 51b and 55b than first parts 51a and 55a can be filled into a part where stress caused by bending can be concentrated. Therefore, the interval between the first parts 51a and 55a and the second parts 51b and 55b can be adjusted, or the second parts 51b and 55b whose modulus is smaller can be filled. Therefore, the filling shape or volume of the second parts 51b and 55b can be changed based on the vehicle or equipment including the bendable area. Therefore, the reliability of the sound generating device set in the bendable area can be enhanced.

[0180] Fig. 9A vehicle according to one or more embodiments of the present disclosure is illustrated. Fig.10 A vehicle according to an embodiment of the present disclosure is illustrated. Fig.11 A vehicle according to an embodiment of the present disclosure is illustrated. Fig.12 A vehicle according to an embodiment of the present disclosure is illustrated. Fig.13 A vehicle according to an embodiment of the present disclosure is illustrated.

[0181] Fig.10 This example shows the Fig. 9 Vibrating devices near the driver's seat and passenger seat. Fig.11 This example shows the Fig. 9 Vibrating devices on doors and windows. Fig.12 This example shows the Fig. 9 Vibrating device on the roof of the vehicle. Fig.13 This example shows the Fig. 9 Vibration devices on the roof and seats of vehicles.

[0182] Reference Figure 1 and Figures 9 to 13 The vehicle 100 according to one or more embodiments of the present disclosure may include a vehicle interior material 130 and a vibration device 30. The vehicle interior material 130 may cover the vehicle structure and may be exposed at the interior space of the vehicle 100.

[0183] The vehicle interior material 130 may include a vibration region, and the vibration region includes a curved portion. The vibration region may also include a peripheral portion. The peripheral portion may be connected to the curved portion and may have a non-curved shape. The vibration device 30 may be disposed in the vibration region. For example, one of the first to third regions of the sound generating device may be disposed at the curved portion of the vibration region. For example, FIG. 3A to FIG. 7C One of the first to third regions of the sound generating device shown may be disposed at a curved portion of the vibration region. For example, one of the first to third regions of the sound generating device may be disposed at a curved portion of the vibration region. The other of the first to third regions of the sound generating device may be disposed at a curved portion of the vibration region. For example, FIG. 3A to FIG. 7C Other regions among the first to third regions of the illustrated sound generating device may be provided at a peripheral portion of the vibration region.

[0184] The vehicle interior material 130 may include one or more of an instrument panel 130A, a pillar interior material 130B, a roof interior material 130C, a door interior material 130D, a seat interior material 130E, a handle interior material 130F, and a floor interior material 130G.

[0185] The vibration device 30 can be set in one or more vibration areas of the instrument panel 130A, the pillar interior material 130B, the roof interior material 130C, the door interior material 130D, the seat interior material 130E, the handle interior material 130F and the floor interior material 130G. For example, the vibration device 30 may include one or more sound generating devices 31A to 31G, which may be set in one or more of the instrument panel 130A, the pillar interior material 130B, the roof interior material 130C, the door interior material 130D, the seat interior material 130E, the handle interior material 130F and the floor interior material 130G. For example, the vibration device 30 may include one or more of the first sound generating device 31A to the seventh sound generating device 31G, so that one or more channels (for example, mono or multi-channel) of sound can be output. For example, one or more of the first sound generating device 31A to the seventh sound generating device 31G may be configured with FIG. 3A to FIG. 7C The sound generating device shown. The instrument panel 130A may include a bendable region. FIG. 3A to FIG. 7C The first sound generating devices 51 , 61 , and 71 , the second sound generating devices 53 , 63 , and 73 , and the third sound generating devices 55 , 65 , and 75 may be provided at the instrument panel 130A.

[0186] Reference Figure 1 , Fig. 9 and Fig.10 According to one or more embodiments of the present disclosure, the sound generating devices 31A to 31P may be disposed between the instrument panel of the main frame of the vehicle structure and the instrument panel 130A. The sound generating devices 31A to 31P may vibrate the instrument panel 130A to output sound based on the vibration of the instrument panel 130A. For example, the sound generating devices 31A to 31P may directly vibrate the instrument panel 130A to output sound based on the vibration of the instrument panel 130A. For example, the first sound generating device 31A may include a film-type sound generator. For example, the first sound generating device 31A may include the above-referenced FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the first sound generating device 31A may be a dashboard speaker.

[0187] According to one or more embodiments of the present disclosure, each of the instrument panel and the instrument panel 130A may include a first area corresponding to the driver's seat DS, a second area corresponding to the passenger seat PS, and a third area (e.g., a center area) located between the first area and the second area. Each of the instrument panel and the instrument panel 130A may include a fourth area that can be tilted to face the passenger seat PS. According to one or more embodiments of the present disclosure, the first sound generating device 31A may be configured to vibrate one or more of the first to fourth areas of the instrument panel 130A. For example, the first sound generating device 31A may be provided at each of the first and second areas of the instrument panel 130A, or may be provided at one or more of the first to fourth areas. For example, the first sound generating device 31A may be configured to output a sound having a frequency of 150 Hz to 20 kHz, but embodiments of the present disclosure are not limited thereto. For example, the first sound generating device 31A configured to vibrate one or more of the first to fourth areas of the instrument panel 130A may have the same or different sound output characteristics. For example, the above reference FIG. 3A to FIG. 7C The described first to third sound generating devices may be provided in one or more of the first to fourth areas of the instrument panel 130A.

[0188] The second sound generating device 31B according to one or more embodiments of the present disclosure may be disposed between a pillar panel of a main frame of a vehicle structure and a pillar interior material 130B. The second sound generating device 31B may vibrate the pillar interior material 130B to output sound based on the vibration of the pillar interior material 130B. For example, the second sound generating device 31B may directly vibrate the pillar interior material 130B to output sound based on the vibration of the pillar interior material 130B. For example, the second sound generating device 31B may include a film-type sound generator. For example, the second sound generating device 31B may include the above reference FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the second sound generating device 31B may be a pillar speaker or a tweeter.

[0189] According to one or more embodiments of the present disclosure, the pillar panel may include a first pillar (e.g., 'A' pillar) disposed on both sides of the front glass window, a second pillar (e.g., 'B' pillar) disposed on both sides of the center of the vehicle body, and a third pillar (e.g., 'C' pillar) disposed on both sides of the rear portion of the vehicle body. The pillar interior material 130B may include a first pillar interior material 130B1 covering the first pillar, a second pillar interior material 130B2 covering the second pillar, and a third pillar interior material 130B3 covering the third pillar. According to one or more embodiments of the present disclosure, the second sound generating device 31B may be disposed in one or more of an area between the first pillar and the first pillar interior material 130B1, an area between the second pillar and the second pillar interior material 130B2, and an area between the third pillar and the third pillar interior material 130B3. Therefore, the second sound generating device 31B may vibrate one or more of the first pillar interior material 130B1 to the third pillar interior material 130B3. For example, the second sound generating device 31B may be configured to output a sound of about 2kHz to about 20kHz, but embodiments of the present disclosure are not limited thereto. For example, the second sound generating device 31B may be configured to output a sound of about 150 Hz to about 20 kHz. For example, the second sound generating device 31B configured to vibrate one or more of the first pillar interior material 130B1 to the third pillar interior material 130B3 may have the same sound output characteristics or different sound output characteristics. For example, the second sound generating device 31B may include a film-type sound generator. For example, the second sound generating device 31B may include the above reference FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described.

[0190] Reference Figure 1 , Fig.12 and Fig.13 , the third sound generating device 31C according to one or more embodiments of the present disclosure may be disposed between the roof panel of the main frame of the vehicle structure and the roof interior material 130C. The third sound generating device 31C may vibrate the roof interior material 130C to output sound based on the vibration of the roof interior material 130C. For example, the third sound generating device 31C may directly vibrate the roof interior material 130C to output sound based on the vibration of the roof interior material 130C. For example, the third sound generating device 31C may include a film-type sound generator or a coil-type sound generator. For example, the third sound generating device 31C may include the above-referenced FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the third sound generating device 31C may be a roof speaker.

[0191] According to one or more embodiments of the present disclosure, each of the roof panel and the roof interior material 130C covering the roof panel may include a first area corresponding to the driver's seat DS, a second area corresponding to the passenger seat PS, a third area corresponding to the area between the driver's seat DS and the passenger seat PS, a fourth area corresponding to the first rear seat BS1 behind the driver's seat DS, a fifth area corresponding to the second rear seat BS2 behind the passenger seat PS, a sixth area corresponding to the area between the first rear seat BS1 and the second rear seat BS2, and a seventh area between the third area and the sixth area. For example, the third sound generating device 31C may be configured to vibrate one or more of the first area to the seventh area of ​​the roof interior material 130C. For example, the third sound generating device 31C may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiments of the present disclosure are not limited thereto. For example, the third sound generating device 31C configured to vibrate one or more of the first area to the seventh area of ​​the roof interior material 130C may have the same sound output characteristics or different sound output characteristics. For example, the third sound generating devices 31C configured to vibrate each of the first to seventh regions of the roof interior material 130C may have the same sound output characteristics or different sound output characteristics. For example, some of the third sound generating devices 31C configured to vibrate one or more of the first to seventh regions of the roof interior material 130C may be configured to output sounds of about 2 kHz to about 20 kHz, and other third sound generating devices 31C may be configured to output sounds of about 150 Hz to about 20 kHz, but embodiments of the present disclosure are not limited thereto.

[0192] Reference Figure 1 and Figures 9 to 11 , the fourth sound generating device 31D according to one or more embodiments of the present disclosure may be disposed between a door frame of a vehicle structure and a door interior material 130D. The fourth sound generating device 31D may vibrate the door interior material 130D to output sound based on the vibration of the door interior material 130D. For example, the fourth sound generating device 31D may directly vibrate the door interior material 130D to output sound based on the vibration of the door interior material 130D. According to one or more embodiments of the present disclosure, the fourth sound generating device 31D may be a film-type sound generator. For example, the fourth sound generating device 31D may include the above-referenced FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the fourth sound generating device 31D may be a door speaker.

[0193] According to one or more embodiments of the present disclosure, each of the door frame and the door interior material 130D may include an upper region, a middle region, and a lower region relative to the height direction Z of the vehicle 100. For example, the fourth sound generating device 31D may be disposed at one or more of the upper region, the middle region, and the lower region between the door frame and the door interior material 130D, thereby vibrating at least one or more of the upper region, the middle region, and the lower region of the door interior material 130D. For example, referring to the above FIG. 3A to FIG. 7C One or more of the described first to third sound generating devices can be set in one or more of the upper area, middle area and lower area between the door frame and the door interior material 130D, so that one or more of the upper area, middle area and lower area of ​​the door interior material 130D can be vibrated.

[0194] According to one or more embodiments of the present disclosure, the upper region of the door interior material 130D may have a smaller radius of curvature. The fourth sound generating device 31D configured to vibrate the upper region of the door interior material 130D may include the fourth sound generating device 31D described above with reference to FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described.

[0195] According to one or more embodiments of the present disclosure, the door frame may include a first door frame (e.g., a left front door frame), a second door frame (e.g., a right front door frame), a third door frame (e.g., a left rear door frame), and a fourth door frame (e.g., a right rear door frame). According to one or more embodiments of the present disclosure, the door interior material 130D may include a first door interior material (e.g., a left front door interior material) 130D1 covering the first door frame, a second door interior material (e.g., a right front door interior material) 130D2 covering the second door frame, a third door interior material (e.g., a left rear door interior material) 130D3 covering the third door frame, and a fourth door interior material (e.g., a right rear door interior material) 130D4 covering the fourth door frame. For example, the fourth sound generating device 31D may be disposed at one or more of the upper region, the middle region, and the lower region between each of the first to fourth door frames and each of the first to fourth door interior materials 130D1 to 130D4. For example, the fourth sound generating device 31D may vibrate one or more of the upper region, the middle region, and the lower region of each of the first to fourth door interior materials 130D1 to 130D4. It should be understood that the terms "left" and "right" are used herein for ease of explanation and are non-restrictive in relative directions.

[0196] According to one or more embodiments of the present disclosure, the fourth sound generating device 31D configured to vibrate the upper area of ​​one or more of the first door interior materials 130D1 to the fourth door interior materials 130D4 can be configured to output sound of about 2 kHz to about 20 kHz, or can be configured to output sound of about 150 Hz to about 20 kHz, but the embodiments of the present disclosure are not limited thereto.

[0197] According to one or more embodiments of the present disclosure, the fourth sound generating device 31D configured to vibrate the middle and lower regions of one or more of the first to fourth door interior materials 130D1 to 130D4 may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiments of the present disclosure are not limited thereto. For example, the fourth sound generating device 31D configured to vibrate the middle and lower regions of one or more of the first to fourth door interior materials 130D1 to 130D4 may be any one of a woofer, a mid-woofer, and a sub-woofer.

[0198] The sounds that can be respectively outputted from the fourth sound generating device 31D provided at the first door interior material 130D1 and the fourth sound generating device 31D provided at the second door interior material 130D2 can be combined and outputted. In addition, the sounds outputted from the fourth sound generating device 31D provided at the third door interior material 130D3 and the sounds outputted from the fourth sound generating device 31D provided at the fourth door interior material 130D4 can be combined and outputted.

[0199] According to one or more embodiments of the present disclosure, the upper area of ​​each of the first to fourth door interior materials 130D1 to 130D4 may include a first upper area adjacent to the instrument panel 130A, a second upper area adjacent to the rear seats BS1 to BS3, and a third upper area between the first upper area and the second upper area. For example, the fourth sound generating device 31D may be disposed at one or more of the first to third upper areas of each of the first to fourth door interior materials 130D1 to 130D4. For example, the fourth sound generating device 31D may be disposed at the first upper area of ​​each of the first to second door interior materials 130D1 and 130D2, and may be disposed at one or more of the second and third upper areas of each of the first to second door interior materials 130D1 and 130D2. For example, the fourth sound generating device 31D configured to vibrate the first upper area of ​​one or more of the first door interior material 130D1 and the second door interior material 130D2 may be configured to output a sound of about 2 kHz to about 20 kHz, but embodiments of the present disclosure are not limited thereto. The fourth sound generating device 31D configured to vibrate the second upper area and the third upper area of ​​each of the first door interior material 130D1 and the second door interior material 130D2 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, but embodiments of the present disclosure are not limited thereto.

[0200] Reference Figure 1 , Fig. 9 and Fig.13 According to one or more embodiments of the present disclosure, the fifth sound generating device 31E may be disposed between the seat frame and the seat interior material 130E, and may vibrate the seat interior material 130E to output sound based on the vibration of the seat interior material 130E. For example, the fifth sound generating device 31E may directly vibrate the seat interior material 130E to output sound based on the vibration of the seat interior material 130E. According to one or more embodiments of the present disclosure, the fifth sound generating device 31E may include a film-type sound generator or a coil-type sound generator. For example, the fifth sound generating device 31E may include the above-referenced FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the fifth sound generating device 31E may be a seat speaker or a headrest speaker.

[0201] According to one or more embodiments of the present disclosure, the seat frame may include a first seat frame (e.g., a driver seat frame), a second seat frame (e.g., a passenger seat frame), a third seat frame (e.g., a first rear seat frame), a fourth seat frame (e.g., a second rear seat frame), and a fifth seat frame (e.g., a third rear seat frame). According to one or more embodiments of the present disclosure, a first seat interior material may surround the first seat frame, a second seat interior material may surround the second seat frame, a third seat interior material may surround the third seat frame, a fourth seat interior material may surround the fourth seat frame, and a fifth seat interior material may surround the fifth seat frame.

[0202] According to one or more embodiments of the present disclosure, each of the first to fifth seat frames may include a seat bottom frame, a seat back frame, and a headrest frame. The seat interior material 130E may include a seat bottom interior material 130E1 surrounding the seat bottom frame, a seat back interior material 130E2 surrounding the seat back frame, and a headrest interior material 130E3 surrounding the headrest frame. Each of the seat bottom interior material 130E1, the seat back interior material 130E2, and the headrest interior material 130E3 may include an inner interior material and an outer interior material. The inner interior material may include a foam layer. The outer interior material may include a surface layer having fiber or leather. The outer interior material may also include a base layer of a plastic material having a supporting surface layer.

[0203] According to one or more embodiments of the present disclosure, the fifth sound generating device 31E may be disposed at one or more of an area between the seat back frame and the seat back interior material 130E2 and an area between the headrest frame and the headrest interior material 130E3. Therefore, the fifth sound generating device 31E may vibrate one or more of an outer interior material of the seat back interior material 130E2 and an outer interior material of the headrest interior material 130E3.

[0204] According to one or more embodiments of the present disclosure, the fifth sound generating device 31E provided at each of the driver seat DS and the passenger seat PS may be provided at one or more of an area between the seat back frame and the seat back interior material 130E2 and an area between the headrest frame and the headrest interior material 130E3.

[0205] According to one or more embodiments of the present disclosure, the fifth sound generating device 31E provided at one or more of the first rear seat BS1 to the third rear seat BS3 may be provided between the headrest frame and the headrest interior material 130E3. For example, one or more of the first rear seat BS1 to the third rear seat BS3 may include one or more fifth sound generating devices 31E provided between the headrest frame and the headrest interior material 130E3. For example, one or more fifth sound generating devices 31E may include the fifth sound generating device 31E described above with reference to FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described.

[0206] According to one or more embodiments of the present disclosure, the fifth sound generating device 31E for vibrating the seat back interior material 130E2 of at least one or more of the driver seat DS and the passenger seat PS may be configured to output sound of about 150 Hz to about 20 kHz.

[0207] According to one or more embodiments of the present disclosure, the fifth sound generating device 31E for vibrating the headrest interior material 130E3 of one or more of the driver seat DS, the passenger seat PS and the first to third rear seats BS1 to BS3 can be configured to output a sound of approximately 2 kHz to approximately 20 kHz, or can be configured to output a sound of approximately 150 Hz to approximately 20 kHz, but the embodiment is not limited thereto.

[0208] Reference Figure 1 , Fig. 9 and Fig.10 , according to one or more embodiments of the present disclosure, the sixth sound generating device 31F may be disposed between the handle frame and the handle interior material 130F to vibrate the handle interior material 130F. For example, the sixth sound generating device 31F may vibrate the handle interior material 130F to output sound based on the vibration of the handle interior material 130F. For example, the sixth sound generating device 31F may directly vibrate the handle interior material 130F to output sound based on the vibration of the handle interior material 130F. According to one or more embodiments of the present disclosure, the sixth sound generating device 31F may include a film-type sound generator or a coil-type sound generator. For example, the sixth sound generating device 31F may include the above-referenced FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the sixth sound generating device 31F may be a handle speaker or a steering speaker.

[0209] According to one or more embodiments of the present disclosure, the sixth sound generating device 31F may vibrate the handle interior material 130F to provide sound to the driver based on the vibration of the handle interior material 130F. For example, the sixth sound generating device 31F may directly vibrate the handle interior material 130F to provide sound to the driver based on the vibration of the handle interior material 130F. The sound output by the sixth sound generating device 31F may be the same as or different from the sound output from each of the first sound generating device 31A to the fifth sound generating device 31E. In one or more embodiments of the present disclosure, the sixth sound generating device 31F may output a sound that is provided only to the driver. In another embodiment of the present disclosure, the sound output by the sixth sound generating device 31F and the sound output by each of the first sound generating device 31A to the fifth sound generating device 31E may be combined and output.

[0210] Reference Figure 1 and Fig. 9 , the seventh sound generating device 31G may be disposed between the floor panel of the main frame of the vehicle structure and the floor interior material 130G. For example, the seventh sound generating device 31G may vibrate the floor interior material 130G to output sound based on the vibration of the floor interior material 130G. For example, the seventh sound generating device 31G may directly vibrate the floor interior material 130G to output sound based on the vibration of the floor interior material 130G.

[0211] The seventh sound generating device 31G may be disposed between the floor panel disposed between the front seats DS and PS and the third rear seat BS3 and the floor interior material 130G. For example, the seventh sound generating device 31G may include a film-type sound generator or a coil-type sound generator. For example, the seventh sound generating device 31G may include the above-referenced FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the seventh sound generating device 31G can be configured to output sounds of about 150 Hz to about 20 kHz. For example, the seventh sound generating device 31G can be a floor speaker, a bottom speaker, or a lower speaker.

[0212] Reference Figure 1 and Figures 9 to 12The vehicle 100 according to one or more embodiments of the present disclosure may further include a vibration device 30 that may be disposed at a vehicle interior material 130 exposed to the vehicle interior space. For example, the vehicle 100 according to one or more embodiments of the present disclosure may include only the vibration device 30 disposed at the vehicle interior material 130 exposed to the vehicle interior space instead of any vibration device 30 disposed at the vehicle interior material 130, or may include all vibration devices including the vibration device 30 disposed at the vehicle interior material 130 exposed to the vehicle interior space and other vibration devices 30 disposed at the vehicle interior material 130.

[0213] According to one or more embodiments of the present disclosure, the vehicle interior material 130 may further include one or more of a rearview mirror 130H, an overhead console 130I, a rear package interior material 130J, a glove box 130K, a sun visor 130L, and the like.

[0214] The vibration device 30 may be respectively disposed in one or more vibration areas, which may be disposed in one or more of the rearview mirror 130H, the overhead console 130I, the rear package interior material 130J, the glove box 130K, and the sun visor 130L. For example, the vibration device 30 may include one or more sound generating devices 31H to 31L, which may be disposed in one or more of the rearview mirror 130H, the overhead console 130I, the rear package interior material 130J, the glove box 130K, and the sun visor 130L. For example, the vibration device 30 may include one or more of the eighth sound generating device 31H to the twelfth sound generating device 31L, and thus may output sounds of one or more channels, for example, mono or multi-channel sounds.

[0215] Reference Figure 1 and Figures 9 to 12 , the eighth sound generating device 31H may be disposed at the rearview mirror 130H, and may vibrate the rearview mirror 130H. For example, the eighth sound generating device 31H may be configured to output a sound based on the vibration of the rearview mirror 130H. For example, the eighth sound generating device 31H may be configured to directly vibrate the rearview mirror 130H to output a sound based on the vibration of the rearview mirror 130H.

[0216] The eighth sound generating device 31H may be disposed between the rearview mirror housing connected to the vehicle structure and the rearview mirror 130H supported by the rearview mirror housing. According to one or more embodiments of the present disclosure, the eighth sound generating device 31H may include a film-type sound generator or a coil-type sound generator. For example, the eighth sound generating device 31H may include the above-mentioned FIG. 3A to FIG. 7COne or more of the first to third sound generating devices described. For example, the eighth sound generating device 31H may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto. For example, the eighth sound generating device 31H may be a mirror speaker.

[0217] Reference Figure 1 , Fig.10 and Fig.12 , the ninth sound generating device 31I may be disposed at the overhead console 130I, and may vibrate the console cover of the overhead console 130I. For example, the ninth sound generating device 31I may be configured to output sound based on the vibration of the interior material of the overhead console 130I. For example, the ninth sound generating device 31I may be configured to directly vibrate the console cover of the overhead console 130I to output sound based on the vibration of the interior material of the overhead console 130I.

[0218] According to one or more embodiments of the present disclosure, the overhead console 130I may include a console box buried (or embedded) in the roof panel, a lighting device provided at the console box, and a console cover covering the lighting device and the console box.

[0219] The ninth sound generating device 31I may be disposed between the console box and the console cover of the overhead console 130I, and may vibrate the console cover. For example, the ninth sound generating device 31I may be disposed between the console box and the console cover of the overhead console 130I, and may directly vibrate the console cover. According to one or more embodiments of the present disclosure, the ninth sound generating device 31I may include a film-type sound generator or a coil-type sound generator. For example, the ninth sound generating device 31I may include the above-referenced FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the ninth sound generating device 31I can be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto. For example, the ninth sound generating device 31I can be a console speaker or a lighting speaker.

[0220] According to one or more embodiments of the present disclosure, the vehicle 100 may further include one or more of a central lighting box disposed at the central area of ​​the roof interior material 130C, a central lighting device disposed at the central lighting box, and a central lighting cover covering the central lighting device. In this case, the ninth sound generating device 31I may further 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.

[0221] Reference Figure 1 and Fig. 9, the tenth sound generating device 31J may be disposed at the rear package interior material 130J, and may vibrate the rear package interior material 130J. For example, the tenth sound generating device 31J may be configured to output sound based on the vibration of the rear package interior material 130J. For example, the tenth sound generating device 31J may be configured to directly vibrate the rear package interior material 130J to output sound based on the vibration of the rear package interior material 130J.

[0222] The rear package interior material 130J may be disposed behind the first to third rear seats BS1 to BS3. For example, a portion of the rear package interior material 130J may be disposed under the rear glass window 230C.

[0223] The tenth sound generating device 31J may be disposed at the rear surface of the rear package interior material 130J and may vibrate the rear package interior material 130J. For example, the tenth sound generating device 31J may directly vibrate the rear package interior material 130J. According to one or more embodiments of the present disclosure, the tenth sound generating device 31J may include a film-type sound generator or a coil-type sound generator. For example, the tenth sound generating device 31J may include the above reference FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the tenth sound generating device 31J may be a rear speaker.

[0224] According to one or more embodiments of the present disclosure, the rear package interior material 130J may include a first area corresponding to the rear of the first rear seat BS1 (e.g., in the rear direction), a second area corresponding to the rear of the second rear seat BS2, and a third area corresponding to the rear of the third rear seat BS3. According to one or more embodiments of the present disclosure, the tenth sound generating device 31J may be configured to vibrate one or more of the first to third areas of the rear package interior material 130J. For example, the tenth sound generating device 31J may be disposed in each of the first and second areas of the rear package interior material 130J, or may be disposed in each of the first to third areas of the rear package interior material 130J. For example, the tenth sound generating device 31J may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto. For example, the tenth sound generating device 31J configured to vibrate one or more of the first to third areas of the rear package interior material 130J may have the same sound output characteristics or different sound output characteristics, respectively.

[0225] Reference Figure 1 , Fig. 9 and Fig.10, the eleventh sound generating device 31K may be disposed at the glove box 130K. For example, the eleventh sound generating device 31K may be configured to vibrate the glove box 130K to output a sound based on the vibration of the glove box 130K. For example, the eleventh sound generating device 31K may directly vibrate the glove box 130K to output a sound based on the vibration of the glove box 130K.

[0226] The glove box 130K may be provided at the instrument panel 130A corresponding to the front (eg, the forward direction) of the passenger seat PS.

[0227] The eleventh sound generating device 31K may be disposed at the inner surface of the glove box 130K and may vibrate the glove box 130K. For example, the eleventh sound generating device 31K may directly vibrate the glove box 130K. According to one or more embodiments of the present disclosure, the eleventh sound generating device 31K may include a film-type sound generator or a coil-type sound generator. For example, the eleventh sound generating device 31K may include the above-mentioned FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the eleventh sound generating device 31K may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto. For example, the eleventh sound generating device 31K may be one or more of a woofer, a mid-woofer, and a sub-woofer. For example, the eleventh sound generating device 31K may be a glove box speaker.

[0228] Reference Fig.10 , the twelfth sound generating device 31L may be provided at the sun visor 130L. For example, the twelfth sound generating device 31L may vibrate the sun visor 130L to output a sound based on the vibration of the sun visor 130L. For example, the twelfth sound generating device 31L may directly vibrate the sun visor 130L to output a sound based on the vibration of the sun visor 130L.

[0229] The sun visor 130L may include a first sun visor 130L1 corresponding to the driver seat DS and a second sun visor 130L2 corresponding to the passenger seat PS.

[0230] The twelfth sound generating device 31L may be disposed at one or more of the first sun visor 130L1 and the second sun visor 130L2. For example, the twelfth sound generating device 31L may vibrate one or more of the first sun visor 130L1 and the second sun visor 130L2. For example, the twelfth sound generating device 31L may directly vibrate one or more of the first sun visor 130L1 and the second sun visor 130L2. According to one or more embodiments of the present disclosure, the twelfth sound generating device 31L may include a film-type sound generator or a coil-type sound generator. For example, the twelfth sound generating device 31L may include the above-referenced FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described. For example, the twelfth sound generating device 31L may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto. For example, the twelfth sound generating device 31L may be a sun visor speaker.

[0231] According to one or more embodiments of the present disclosure, one or more of the first sun visor 130L1 and the second sun visor 130L2 may further include a sun visor mirror. For example, the twelfth sound generating device 31L may be configured to vibrate the sun visor mirror of one or more of the first sun visor 130L1 and the second sun visor 130L2. The twelfth sound generating device 31L may directly vibrate the sun visor mirror of one or more of the first sun visor 130L1 and the second sun visor 130L2. The twelfth sound generating device 31L configured to vibrate the sun visor mirror may include a film-type sound generator or a coil-type sound generator. For example, the twelfth sound generating device 31L may include the above-referenced FIG. 3A to FIG. 7C One or more of the first to third sound generating devices described.

[0232] Reference Figure 1 and Figures 9 to 13 , the vehicle 100 according to one or more embodiments of the present disclosure may further include a vibration device 30 disposed at the vehicle glass window 230. For example, the vehicle 100 according to one or more embodiments of the present disclosure may include a vibration device 30 disposed at the vehicle glass window 230, instead of one or more of the vibration device 30 disposed at the vehicle interior material 130 and the vibration device 30 disposed at the vehicle interior material 130 exposed to the vehicle interior. For example, the vehicle 100 may include all of the vibration devices of the vibration device 30 disposed at the vehicle interior material 130, the vibration device 30 disposed at the vehicle interior material 130 exposed to the vehicle interior, and the vibration device 30 disposed at the vehicle glass window 230.

[0233] The vehicle 100 according to one or more embodiments of the present disclosure may include the above-mentioned Fig.13 The vibration device 30 described above, rather than the Figures 9 to 12 One or more vibration devices 30 described above, or may include Figures 9 to 13 All vibration devices 30 are described.

[0234] The vibration device 30 may include one or more sound generating devices 31M to 31P provided at the vehicle glass window 230. For example, the vibration device 30 may include one or more of the thirteenth to sixteenth sound generating devices 31M to 31P, and thus may output sounds of one or more channels, for example, mono or multi-channel sounds. For example, the vibration device 30 may be a transparent sound generating device.

[0235] Each of the thirteenth to sixteenth sound generating devices 31M to 31P according to one or more embodiments of the present disclosure may include a transparent or translucent sound generating device. For example, when each of the thirteenth to sixteenth sound generating devices 31M to 31P includes a transparent sound generating device, at least one or more of the thirteenth to sixteenth sound generating devices 31M to 31P may vibrate the vehicle glass window 230 to output sound based on the vibration of the vehicle glass window 230. For example, one or more of the thirteenth to sixteenth sound generating devices 31M to 31P may directly vibrate the vehicle glass window 230 to output sound based on the vibration of the vehicle glass window 230. For example, when one or more of the thirteenth to sixteenth sound generating devices 31M to 31P include a transparent sound generating device 33, one or more of the thirteenth to sixteenth sound generating devices 31M to 31P may output sound through its own vibration.

[0236] According to one or more embodiments of the present disclosure, the vehicle glass window 230 may include a front glass window 230A, a side glass window 230B, and a rear glass window 230C. According to one or more embodiments of the present disclosure, the vehicle glass window 230 may also include a roof glass window 230D. For example, when the vehicle 100 includes the roof glass window 230D, a portion of the area of ​​the above-mentioned roof frame and the roof interior material 130C may be replaced with the roof glass window 230D. For example, when the vehicle 100 includes the roof glass window 230D, the third sound generating device 31C may be configured to vibrate the outer portion of the roof interior material 130C surrounding the roof glass window 230D.

[0237] Reference Figure 1 , Fig. 9 and Fig.10The thirteenth sound generating device 31M according to one or more embodiments of the present disclosure may be disposed at the front glass window 230A, and may be configured to output sound based on its own vibration, or may be configured to vibrate the front glass window 230A to output sound based on the vibration of the front glass window 230A. For example, the thirteenth sound generating device 31M may directly vibrate the front glass window 230A to output sound based on the vibration of the front glass window 230A.

[0238] According to one or more embodiments of the present disclosure, the front glass window 230A may include a first area corresponding to the driver's seat DS, a second area corresponding to the passenger seat PS, and a third area (or intermediate area) between the first area and the second area. For example, the thirteenth sound generating device 31M may be arranged at one or more of the first area to the third area. For example, the thirteenth sound generating device 31M may be arranged at each of the first area and the second area of ​​the front glass window 230A, or may be arranged at each of the first area to the third area. For example, the thirteenth sound generating device 31M arranged at one or more of the first area to the third area of ​​the front glass window 230A may have the same sound output characteristics or different sound output characteristics. For example, the thirteenth sound generating device 31M may be configured to output a sound of about 150Hz to about 20kHz, but the embodiment is not limited thereto. For example, the thirteenth sound generating device 31M may be a front window speaker.

[0239] Reference Figure 1 , Fig.11 and Fig.13 The fourteenth sound generating device 31N according to one or more embodiments of the present disclosure may be disposed at the side glass window 230B, and may be configured to output sound based on its own vibration, or may be configured to vibrate the side glass window 230B to output sound based on the vibration of the side glass window 230B. For example, the fourteenth sound generating device 31N may directly vibrate the side glass window 230B to output sound based on the vibration of the side glass window 230B.

[0240] According to one or more embodiments of the present disclosure, the side glass window 230B may include a first side glass window (e.g., a left front window) 230B1, a second side glass window (e.g., a right front window) 230B2, a third side glass window (e.g., a left rear window) 230B3 and a fourth side glass window (e.g., a right rear window) 230B4.

[0241] According to one or more embodiments of the present disclosure, the fourteenth sound generating device 31N may be provided at one or more of the first to fourth side glass windows 230B1 to 230B4. For example, one or more of the first to fourth side glass windows 230B1 to 230B4 may include one or more fourteenth sound generating devices 31N.

[0242] According to one or more embodiments of the present disclosure, the fourteenth sound generating device 31N may be disposed at one or more of the first side glass window 230B1 to the fourth side glass window 230B4, and may be configured to output sound based on its own vibration, or may be configured to vibrate the corresponding side glass window of the first side glass window 230B1 to the fourth side glass window 230B4 to output sound. For example, the fourteenth sound generating device 31N may directly vibrate the first side glass window 230B1 to the fourth side glass window 230B4 to output sound. For example, the fourteenth sound generating device 31N may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto. For example, the fourteenth sound generating device 31N disposed at one or more of the first side glass window 230B1 to the fourth side glass window 230B4 may each have the same sound output characteristics or different sound output characteristics. For example, the fourteenth sound generating device 31N may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto. For example, the fourteenth sound generating device 31N may be a side window speaker or a side surface window speaker.

[0243] Reference Fig. 9 The fifteenth sound generating device 310 according to one or more embodiments of the present disclosure may be disposed at the rear glass window 230C, and may be configured to output sound through its own vibration, or may be configured to vibrate the rear glass window 230C to output sound based on the vibration of the rear glass window 230C. For example, the fifteenth sound generating device 310 may directly vibrate the rear glass window 230C to output sound based on the vibration of the rear glass window 230C.

[0244] According to one or more embodiments of the present disclosure, the rear glass window 230C may include a first area corresponding to the rear of the first rear seat BS1 (e.g., in the rear direction), a second area corresponding to the rear of the second rear seat BS2, and a third area corresponding to the rear of the third rear seat BS3. According to one or more embodiments of the present disclosure, the fifteenth sound generating device 31O may be arranged at one or more of the first to third areas of the rear glass window 230C. For example, the fifteenth sound generating device 31O may be arranged at each of the first and second areas of the rear glass window 230C, or may be arranged at each of the first to third areas. For example, the fifteenth sound generating device 31O may be configured to output a sound of about 150Hz to about 20kHz, but the embodiment is not limited thereto. For example, the fifteenth sound generating device 31O arranged at one or more of the first to third areas of the rear glass window 230C may have the same sound output characteristics or different sound output characteristics. For example, the fifteenth sound generating device 310 disposed at each of the first and second regions of the rear glass window 230C may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto. For example, the fifteenth sound generating device 310 may be one or more of a woofer, a mid-woofer, and a sub-woofer. For example, the fifteenth sound generating device 310 may be a rear window speaker.

[0245] Reference Fig.12 The sixteenth sound generating device 31P according to one or more embodiments of the present disclosure may be disposed at the roof glass window 230D, and may be configured to output sound through its own vibration, or may be configured to vibrate the roof glass window 230D to output sound based on the vibration of the roof glass window 230D. For example, the sixteenth sound generating device 31P may directly vibrate the roof glass window 230D to output sound based on the vibration of the roof glass window 230D.

[0246] The roof glass window 230D according to one or more embodiments of the present disclosure may be disposed above the front seats DS and PS of the vehicle 100. For example, the sixteenth sound generating device 31P may be disposed at a middle area of ​​the roof glass window 230D. For example, the sixteenth sound generating device 31P may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto. For example, the sixteenth sound generating device 31P may be a roof window speaker.

[0247] According to another embodiment of the present disclosure, the roof glass window 230D may be disposed above the front seats DS and PS of the vehicle 100, or may be disposed above the front seats DS and PS and the rear seats BS1 to BS3. For example, the roof glass window 230D may include a first area corresponding to the front seats DS and PS and a second area corresponding to the rear seats BS1 to BS3. In addition, the roof glass window 230D may include a third area between the first area and the second area. For example, the sixteenth sound generating device 31P may be disposed at one or more of the first area and the second area of ​​the roof glass window 230D, or may be disposed at one or more of the first area to the third area of ​​the roof glass window 230D. For example, the sixteenth sound generating device 31P may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto. For example, the sixteenth sound generating device 31P disposed at one or more of the first area to the third area of ​​the roof glass window 230D may have the same sound output characteristics or different sound output characteristics.

[0248] Reference Figure 1 , Fig. 9 and Fig.10 The vehicle 100 according to one or more embodiments of the present disclosure may further include a woofer WS, which may be provided at one or more of the instrument panel 130A, the door frame, and the rear package interior material 130J.

[0249] The woofer WS according to one or more embodiments of the present disclosure may include one or more of a woofer, a mid-woofer, and a sub-woofer. For example, the woofer WS may be a speaker that outputs sounds of about 60 Hz to about 150 Hz, but the embodiment is not limited thereto. Therefore, the woofer WS may output sounds of about 60 Hz to about 150 Hz, and thus may enhance the low-pitched vocal characteristics of the sounds that may be output to the interior space of the vehicle 100.

[0250] According to one or more embodiments of the present disclosure, the woofer WS may be disposed at one or more of the first and second regions of the instrument panel 130A. According to one or more embodiments of the present disclosure, the woofer WS may be disposed at each of the first to fourth door frames of the door interior material 130D, and may be exposed at the lower region of each of the first to fourth door interior materials 130D1 to 130D4 of the door interior material 130D. According to one or more embodiments of the present disclosure, the woofer WS may be disposed at one or more of the first and second regions of the rear package interior material 130J. For example, the fourth sound generating device 31D disposed in the lower region of one or more of the first to fourth door interior materials 130D1 to 130D4 may be replaced by the woofer WS.

[0251] Reference Figure 1 , Fig. 9 and Fig.10 The vehicle 100 according to one or more embodiments of the present disclosure may further include an instrument panel device 150 and an infotainment device 170 .

[0252] The instrument panel device 150 according to one or more embodiments of the present disclosure may be disposed at a first area of ​​the instrument panel 130A to face the driver seat DS. The instrument panel device 150 may include a display (eg, a first display) 151, which may be disposed at a first area of ​​the instrument panel 130A, for example, to face the driver seat DS.

[0253] The first display 151 may include a display device. For example, the instrument panel device 150 may output a sound generated based on vibration of a display panel based on vibration of one or more sound generating devices 30 included in the first display 151 toward the driver seat DS. For example, the sound generating device 30 provided in the first display 151 of the instrument panel device 150 may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto.

[0254] The infotainment device 170 may be provided at a third area of ​​the instrument panel 130A.

[0255] The infotainment device 170 according to one or more embodiments of the present disclosure may be fixed on the third area of ​​the instrument panel 130A in an upright state.

[0256] The infotainment device 170 according to another embodiment of the present disclosure may be installed to be raised and lowered at a third area of ​​the instrument panel 130A. For example, the infotainment device 170 may be received or accommodated in the instrument panel 130A, for example, based on the closing of the vehicle 100 or the manipulation of the vehicle passenger, and may protrude to an area on the instrument panel 130A, for example, based on the opening of the vehicle 100 or the manipulation of the vehicle passenger.

[0257] The infotainment device 170 according to one or more embodiments of the present disclosure may include a display 171 (eg, a second display) provided at a third area of ​​the instrument panel 130A, and a display lift.

[0258] The second display 171 may include a display device. For example, the infotainment device 170 may output a sound generated based on vibration of a display panel based on vibration of one or more sound generating devices 30 included in the second display 171 toward the driver seat DS. For example, the sound generating device 30 provided at the second display 171 of the infotainment device 170 may be configured to output a sound of about 150 Hz to about 20 kHz, but the embodiment is not limited thereto.

[0259] The display lift may be provided at a third area of ​​the instrument panel 130A, and may support the second display 171 to be raised and lowered. For example, the display lift may raise the second display 171, for example, based on the opening of the vehicle or the manipulation of a vehicle passenger, thereby allowing the second display 171 to protrude to an area on the instrument panel 130A. In addition, the display lift may lower the second display 171, for example, based on the closing of the vehicle 100 or the manipulation of a vehicle passenger, thereby allowing the second display 171 to be received or accommodated in the instrument panel 130A.

[0260] The display device of each of the first display 151 and the second display 171 according to one or more embodiments of the present disclosure may be a display provided at one or more of an instrument panel device and an infotainment device that can be classified as a vehicle interior material, or may be a display embedded or buried in one or more of a headrest and a rear surface of a vehicle seat, but the embodiments of the present disclosure are not limited thereto. For example, a display device provided at the instrument panel device 150 may provide the driver with various information, such as vehicle status information and driving related information (e.g., the driving time, speed, fuel quantity, and engine revolutions per minute (RPM) of the vehicle). For example, a display device 50 provided at an infotainment device (e.g., an infotainment system or an infotainment module) may be connected to a vehicle comfort system (e.g., an audio system, an air conditioning system, a multimedia system, and a navigation system installed in a vehicle), may display a control icon for controlling a corresponding vehicle comfort system and navigation information provided from a navigation system, and may provide a sound corresponding to a sound signal provided from an audio system and / or a multimedia system to a vehicle passenger.

[0261] The display device according to one or more embodiments of the present disclosure may include a display panel and one or more vibration devices 30 provided at a rear surface (eg, back surface) of the display panel.

[0262] The display panel may display an electronic image or a digital image. For example, the display panel may output light and display an image.

[0263] According to one or more embodiments of the present disclosure, the display panel may be any type of flat display panel or curved display panel, for example, a liquid crystal display panel, an organic light emitting display panel, a quantum dot light emitting display panel, a micro light emitting diode display panel, an electrophoretic display panel, and an electrowetting display panel, etc., but the embodiments of the present disclosure are not limited thereto. According to another embodiment of the present disclosure, the display panel may be a transparent display panel or a flexible display panel. According to another embodiment of the present disclosure, the display panel may be a display panel with an integrated touch panel. For example, a display panel with an integrated touch panel may include a touch panel attached to the display panel, or may include a touch electrode layer disposed inside the display panel.

[0264] The vibration device 30 according to one or more embodiments of the present disclosure may vibrate the display panel in response to a sound signal (e.g., a voice signal) from the outside. For example, the vibration device 30 may directly vibrate the display panel in response to a sound signal (e.g., a voice signal) from the outside. As one or more embodiments of the present disclosure, the vibration device 30 may vibrate based on a sound signal synchronized with the image displayed by the display panel to vibrate the display panel. As another embodiment of the present disclosure, the vibration device 30 may vibrate based on a tactile feedback signal (e.g., a tactile feedback signal) synchronized with a user touch applied to a touch panel (e.g., a touch sensor layer) to vibrate the display panel. Therefore, the display panel may vibrate based on the vibration of the vibration device 30 to provide one or more of sound and tactile feedback to the user (e.g., a viewer).

[0265] Therefore, the vehicle 100 according to one or more embodiments of the present disclosure can output sound to the vehicle interior space through one or more of the vibration device 30 provided at the vehicle interior material 130, the vibration device 30 provided at the vehicle interior material 130 exposed to the vehicle interior position, and the vibration device 30 provided at the vehicle glass window 230. Therefore, the vehicle 100 can output sound through the vehicle interior material as a vibration plate, thereby outputting multi-channel surround sound. In addition, the vehicle 100 according to one or more embodiments of the present disclosure can output sound through one or more display panels (as vibration plates) of the displays 151 and 171 of each of the instrument panel device 150 and the infotainment device 170, and can output more realistic multi-channel surround sound through each of the instrument panel device 150 and the infotainment device 170.

[0266] Fig.14 Sound output characteristics according to one or more embodiments of the present disclosure are illustrated.

[0267] The sound output characteristics may be measured by a sound analysis device. The sound analysis device may include a sound card that may send sound to or receive sound from a control personal computer (PC), an amplifier that may amplify a signal generated from the sound card and transmit the amplified signal to a vibration device, and a microphone that may collect sound generated by a vehicle interior material based on the driving of the vibration device. The sound collected by the microphone may be input to the control PC through the sound card, and a control program may check the input sound to analyze the sound of the vibration device. Fig.14 , the horizontal axis represents frequency in Hertz (Hz), and the vertical axis represents sound pressure level (SPL) in decibel (dB).

[0268] The sound output characteristics have been measured in an anechoic chamber closed in all directions, and the measurement instrument has adopted the APx525 audio analyzer of Audio Precision Corporation. The measurement has been performed under the condition that the applied voltage is 30 Vpp and the applied frequency signal is applied as a sine sweep signal in the range of 20 Hz to 20 kHz, and 1 / 3 octave smoothing has been performed on the measurement results. The measurement method is not limited to this.

[0269] When you connect the microphone to Figure 2 and Figure 3B The sound output characteristics have been measured under the condition that the angle between the horizontal planes of the bendable area is adjusted to 60 degrees and the spacing distance between the sound generating device and the microphone is adjusted to 50 cm. For example, 60 degrees may be an angle that enables the driver to hear the sound in the vehicle. For example, the sound listening position of a person in the vehicle may be set to be higher than the door. The sound pressure level has been measured based on the real listening environment of a person in the vehicle.

[0270] Reference Fig.14 , dotted lines indicate usage examples Figure 2 The sound output characteristics of the configuration, and the solid line indicates the usage example Figure 3B For example, the dotted line indicates an example where a flat sound generating device is provided, and the solid line indicates an example where a flat sound generating device and a curved sound generating device are provided. The sound output characteristics have been measured in a case where the sound generating device is attached to a door interior material as a vehicle interior material.

[0271] For example, in the frequency range of 100 Hz to 200 kHz, the dotted line indicates a sound pressure level of about 66.8 dB, and the solid line indicates a sound pressure level of about 73.0 dB. Therefore, it can be seen that the sound pressure level indicated by the solid line is enhanced by about 6.2 dB compared to the dotted line. Therefore, when the sound generating device is provided at the curved portion of the vehicle interior material, it can be seen that the sound pressure level is enhanced at the listening position.

[0272] For example, in the frequency range of 500 Hz to 2 kHz, the dotted line indicates a sound pressure level of about 62.1 dB, and the solid line indicates a sound pressure level of about 74.2 dB. Therefore, it can be seen that the sound pressure level indicated by the solid line is enhanced by about 12.1 dB compared to the dotted line. The frequency range of 500 Hz to 2 kHz may be a human voice range. In the frequency range of 500 Hz to 2 kHz corresponding to the human voice range, the sound pressure level is enhanced, and therefore, it can be seen that the sound generating device can be applied to a vehicle as a speaker.

[0273] Therefore, since a curved sound generating device having a shape of a bendable region is provided, it can be seen that the sound pressure level characteristics at the direction and the listening position are better enhanced.

[0274] Therefore, according to one or more embodiments of the present disclosure, a sound generating device can be set based on the bending of the bendable area, thereby providing a vehicle or device for enhancing sound characteristics and / or sound pressure level characteristics. In addition, according to one or more embodiments of the present disclosure, a sound generating device can be set based on a curved portion in a vehicle, and therefore, the sound generating device can be applied as a speaker of the vehicle.

[0275] The vibration device according to one or more embodiments of the present disclosure can be applied to the vibration device arranged at the equipment.The vibration device according to one or more embodiments of the present disclosure can be applied to mobile device, video phone, smart watch, watch phone, wearable device, foldable device, rollable device, bendable device, flexible device, bending device, sliding device, electronic notepad, e-book, portable multimedia player (PMP), personal digital assistant (PDA), MP3 player, mobile medical device, desktop personal computer (PC), laptop PC, netbook computer, workstation, navigation device, car navigation device, car display device, car equipment, theater equipment, theater display device, TV, wallpaper display device, signage device, game console, notebook computer, monitor, camera, video camera, household appliances etc. In addition, the vibration device according to one or more embodiments of the present disclosure can be applied to organic light emitting lighting device or inorganic light emitting lighting device. When the vibration device of one or more embodiments of the present disclosure is applied to lighting device, the vibration device can serve as lighting device and speaker. Furthermore, when the vibration device of one or more embodiments of the present disclosure is applied to a mobile device, the vibration device may function as one or more of a speaker, a receiver, and a haptic device, but embodiments of the present disclosure are not limited thereto.

[0276] A sound generating apparatus and a vehicle including the same according to one or more embodiments of the present disclosure will be described below.

[0277] According to one or more embodiments of the present disclosure, the sound generating device may include: a plurality of first parts, the plurality of first parts being located in each of the first to third areas; and a plurality of second parts, the plurality of second parts being located between the plurality of first parts in each of the first to third areas, the cross-sectional shape of two or more second parts in any one of the first to third areas being different from the cross-sectional shape of the second parts in each of the other areas in the first to third areas.

[0278] According to some embodiments of the present disclosure, two or more first portions having a hexagonal cross-section and two or more second portions having a hexagonal cross-section are disposed at at least one of the first to third regions.

[0279] According to some embodiments of the present disclosure, any one of the first to third regions may be a curved region that can be bent from other regions of the first to third regions. For example, any one of the first to third regions may be a curved region that can be bent 90 degrees from other regions.

[0280] According to some embodiments of the present disclosure, a cross-sectional shape of the second portion disposed at a curved region among the first to third regions is different from a cross-sectional shape of the second portion disposed at a non-curved region.

[0281] According to some embodiments of the present disclosure, the third region between the first region and the second region may be a bending region that can be bent 90 degrees from each of the first region and the second region. For example, the third region may be a bending region that can be bent 90 degrees from each of the first region and the second region.

[0282] According to some embodiments of the present disclosure, each of the multiple first parts and the multiple second parts may include a first surface, a second surface opposite to the first surface, and a side surface located between the first surface and the second surface, any one of the first to third regions may include a bendable region, the side surfaces of two or more second parts arranged at the bendable region may include a concave portion, and another second part in another region other than the bendable region among the first to third regions may include a cross-section having a quadrilateral shape.

[0283] According to some embodiments of the present disclosure, at least one first portion disposed between two or more second portions at the bendable region may include a protruding portion protruding toward a concave portion of an adjacent second portion.

[0284] According to some embodiments of the present disclosure, each of the two or more second portions disposed at the bendable region may include a cross-section of a hexagonal shape having a concave side surface.

[0285] According to some embodiments of the present disclosure, in each of two or more second portions disposed at the bendable region, the first surface and the second surface may have the same width, and the shortest distance between a first side surface and the second side surface parallel to the first surface and the second surface may be less than the width of the first surface.

[0286] According to some embodiments of the present disclosure, in one second portion of two or more second portions disposed at the bendable region, the first side surface and the second side surface may contact each other.

[0287] According to some embodiments of the present disclosure, the bendable region may include three second portions, and a second portion at a center of the three second portions and side second portions at both sides of the center portion may have different cross-sectional shapes.

[0288] According to some embodiments of the present disclosure, the plurality of second portions may have a first width and a second width, the second width being half the height of the second portion, and in each of the two or more second portions at the bending area, the first width may be different from the second width.

[0289] According to some embodiments of the present disclosure, widths of the second portions at the bending region may be different from each other.

[0290] According to some embodiments of the present disclosure, a width of the first portion at the bending region may be different from a width of the second portion in the bending region.

[0291] According to some embodiments of the present disclosure, the plurality of first portions may include an inorganic material, and the plurality of second portions may include an organic material.

[0292] According to some embodiments of the present disclosure, widths of the first to third regions may be different from each other.

[0293] According to some embodiments of the present disclosure, a width of any one of the first to third regions may be wider than a width of each of the other regions.

[0294] According to some embodiments of the present disclosure, the modulus of the second portion at any one of the first to third regions may be higher than the modulus of the second portion at other regions of the first to third regions.

[0295] A vehicle according to some embodiments of the present disclosure may include: a vehicle interior material having a vibration area including a curved portion; and a vibration device at the vibration area; the vibration device may include a sound generating device, the sound generating device may include: a plurality of first parts, the plurality of first parts at each of the first to third areas; and a plurality of second parts, the plurality of second parts at each of the first to third areas being located between the plurality of first parts, and the cross-sectional shape of two or more second parts at any one of the first to third areas may be different from the cross-sectional shape of the second parts at each of the other areas from the first to third areas.

[0296] According to some embodiments of the present disclosure, any one of the first to third regions of the sound generating device may be disposed at a curved portion of the vibration region.

[0297] According to some embodiments of the present disclosure, the vibration area may also include a peripheral portion connected to the curved portion, the vibration area has a non-curved shape, and any one of the first to third areas of the sound generating device may be at the curved portion, and another area of ​​the first to third areas of the sound generating device is at the peripheral portion of the vibration area.

[0298] According to some embodiments of the present disclosure, the vehicle interior material may include one or more of plastic, fiber, leather, wood, cloth, metal, and glass.

[0299] According to some embodiments of the present disclosure, the vehicle interior material may include one or more of an instrument panel, a pillar interior material, a roof interior material, a door interior material, a seat interior material, a handle interior material, and a floor interior material, and the vibration device may be at a vibration area of ​​one or more of the instrument panel, the pillar interior material, the roof interior material, the door interior material, the seat interior material, the handle interior material, and the floor interior material.

[0300] According to some embodiments of the present disclosure, the vehicle interior material may include one or more of a rearview mirror, an overhead console, a rear package interior material, a glove box, and a sun visor, and the vibration device may be at a vibration area of ​​one or more of the rearview mirror, the overhead console, the rear package interior material, the glove box, and the sun visor.

[0301] It is obvious to those skilled in the art that various modifications and variations can be made to the present disclosure without departing from the technical concept or scope of the present disclosure. Therefore, the embodiments of the present disclosure are intended to cover modifications and variations of the present disclosure as long as these modifications and variations fall within the scope of the attached claims and their equivalents.

[0302] CROSS-REFERENCE TO RELATED APPLICATIONS

[0303] This application claims the benefit of and priority to Korean Patent Application No. 10-2020-0182240, filed on December 23, 2020, which is hereby incorporated by reference in its entirety.

Claims

1. A sound generating device, the sound generating device comprising: a plurality of first portions, the plurality of first portions being located in each of the first region, the second region, and the third region; as well as a plurality of second portions, the plurality of second portions being located between the plurality of first portions at each of the first to third regions, wherein, in a state where the first to third regions are not bent, a cross-sectional shape of two or more second portions located at any one of the first to third regions is different from a cross-sectional shape of a second portion located at each of the other regions of the first to third regions, wherein the first portion has piezoelectric properties and the second portion has ductile properties, and Any one of the first region to the third region is a bending region where another region from the first region to the other region of the third region can be bent.

2. The sound generating device according to claim 1, wherein: Two or more first portions having a hexagonal shape in cross section and two or more second portions having a hexagonal shape in cross section are provided at at least one of the first to third regions.

3. The sound generating device according to claim 1, wherein: A cross-sectional shape of a second portion disposed at a curved region among the first to third regions is different from a cross-sectional shape of a second portion disposed at a non-curved region.

4. The sound generating device according to claim 1, wherein: The third region located between the first region and the second region is a bending region bendable from each of the first region and the second region.

5. The sound generating device according to claim 4, wherein: The third region is a bent region bent 90 degrees from each of the first region and the second region.

6. The sound generating device according to claim 1, wherein: Each of the plurality of first parts and the plurality of second parts comprises: a first surface; a second surface opposite to the first surface; and a side surface located between the first surface and the second surface, Any one of the first region to the third region includes a bendable region; Side surfaces of two or more second portions at the bendable region include concave portions; and Another second portion at another region other than the bendable region among the first to third regions includes a cross section having a quadrilateral shape.

7. The sound generating device according to claim 6, wherein: At least one first portion between the two or more second portions at the bendable region includes a protruding portion protruding toward a concave portion of an adjacent second portion.

8. The sound generating device according to claim 6, wherein: Each of the two or more second portions at the bendable region includes a cross-section having a hexagonal shape having a concave side surface.

9. The sound generating device according to claim 6, wherein: In each of the two or more second portions at the bendable region: The first surface and the second surface have the same width; and The shortest distance between the first side surface and the second side surface that are parallel between the first surface and the second surface is smaller than the width of the first surface.

10. The sound generating device according to claim 9, wherein: In one second portion of the two or more second portions at the bendable region, the first side surface and the second side surface contact each other.

11. The sound generating device according to claim 6, wherein: The bendable region includes three second portions; and The second portion at the center of the three second portions and the side second portions at both sides of the center portion have different cross-sectional shapes.

12. The sound generating device according to claim 1, wherein: The plurality of second parts have: first width; as well as a second width, the second width being half the height of the second portion; and In each of the two or more second portions at the bendable region, the first width is different from the second width.

13. The sound generating device according to claim 1, wherein: Widths of the second portions at the bending regions are different from each other.

14. The sound generating device according to claim 1, wherein: A width of the first portion disposed at the bending area is different from a width of the second portion disposed at the bending area.

15. The sound generating device according to claim 1, wherein: The plurality of first portions include an inorganic material, and the plurality of second portions include an organic material.

16. The sound generating device according to claim 1, wherein: Widths of the first to third regions are different from each other.

17. The sound generating device according to claim 1, wherein: The width of any one of the first to third regions is wider than the width of each of the other regions.

18. The sound generating device according to claim 1, wherein: The modulus of the second portion at any one of the first to third regions is higher than the modulus of the second portion at the other of the first to third regions.

19. A vehicle, comprising: A vehicle interior material, the vehicle interior material comprising a vibration region including a curved portion; as well as A vibration device located at the vibration area, the vibration device comprising the sound generating device according to any one of claims 1 to 18.

20. The vehicle of claim 19, wherein: Any one of the first to third regions of the sound generating device is disposed at the curved portion of the vibration region.

21. The vehicle of claim 19, wherein: The vibration region further includes a peripheral portion connected to the curved portion, the vibration region having a non-curved shape, Any one of the first to third regions of the sound generating device is located at the curved portion, and Another area of ​​the first to third areas of the sound generating device is located at the outer peripheral portion of the vibration area.

22. The vehicle of claim 19, wherein: The vehicle interior material includes one or more of plastic, fiber, leather, wood, cloth, metal and glass.

23. The vehicle of claim 19, wherein: The vehicle interior material includes one or more of an instrument panel, a pillar interior material, a roof interior material, a door interior material, a seat interior material, a handle interior material, and a floor interior material, and The vibration device is located at a vibration region of one or more of the instrument panel, the pillar trim material, the roof trim material, the door trim material, the seat trim material, the handle trim material, and the floor trim material.

24. The vehicle of claim 19, wherein: The vehicle interior material includes one or more of a rearview mirror, an overhead console, a rear package interior material, a glove box, and a sun visor, and The vibration device is located at a vibration area of ​​one or more of the rearview mirror, the overhead console, the rear package interior material, the glove box, and the sun visor.

Images