Vehicle audio generating device and vehicle including the same

Abstract

To provide a vehicle sound generating device capable of outputting sound by utilizing vehicle interior materials and / or vehicle glass windows, and a vehicle including the same. A vehicle sound generating device (30) includes a sound generator (31) covered by a vehicle interior material (130). The sound generator vibrates the vehicle interior material. The vehicle interior material vibrates in response to the vibration of the sound generating device, and outputs sound. The vehicle sound generating device and the vehicle including the same can output sound or stereophonic sound through the vehicle interior materials and / or the vehicle glass windows.

Description

Technical Field

[0001] This specification relates to a vehicle acoustic generating device and a vehicle including the same.

Background Art

[0002] A vehicle includes an acoustic generating device that outputs sound based on an audio signal output from a multimedia device such as a car audio. For example, an acoustic generating device applied to a vehicle can include a front speaker and a rear speaker configured in a coil system.

[0003] However, the acoustic generating device of a vehicle has limitations in outputting multi-channel real sound or stereo sound through the front speaker and the rear speaker. The acoustic generating device of a vehicle can output stereo sound when increasing the number of speakers, but there are limitations in increasing the number of speakers due to the size of the speakers by the coil system and the spatial constraints within the vehicle.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The inventors of this specification recognized the problems with the vehicle acoustic generating device and the vehicle including the same, and conducted multiple experiments on a vehicle acoustic generating device that can output multi-channel real sound or stereo sound and a vehicle including the same. Through multiple experiments, the inventors of this specification invented a vehicle acoustic generating device that uses a vehicle interior material as an acoustic vibration plate and a vehicle including the same. Also, through multiple experiments, the inventors of this specification invented an acoustic generating device that can realize stereo sound and a vehicle including the same.

[0005] The problem to be solved according to the embodiments of this specification is to provide a vehicle acoustic generating device that can output sound using a vehicle interior material and / or a vehicle glass window, and a vehicle including the same as a technical problem.

[0006] Another technical problem to be solved by other embodiments of the present specification is to provide a vehicle acoustic generator capable of outputting stereo sound by using vehicle interior materials and / or vehicle glass windows, and a vehicle including the same.

[0007] The problem to be solved by the examples of the present specification is not limited to the above problems, and other problems not mentioned will be clearly understood by those having ordinary knowledge in the technical field to which the technical idea of the present specification belongs from the following description.

Means for Solving the Problems

[0008] The vehicle acoustic generator according to some embodiments of the present specification includes an acoustic generator covered by a vehicle interior material, and the acoustic generator may be configured to vibrate the vehicle interior material.

[0009] A vehicle including the vehicle acoustic generator according to some embodiments of the present specification includes a vehicle interior material covering a vehicle structure and an acoustic generator disposed in the vehicle interior material, and the vehicle interior material can vibrate due to the vibration of the acoustic generator to output sound.

[0010] Specific matters according to various examples of the present specification other than the means for solving the problems mentioned above are included in the following description and drawings.

Effects of the Invention

[0011] The vehicle acoustic generator and the vehicle including the same according to the present specification can output sound or stereo sound by using the vehicle interior material and / or the vehicle glass window.

[0012] The contents of the problems to be solved, the means for solving the problems, and the effects mentioned above do not specify the essential features of the claims, and the scope of rights of the claims is not limited by the matters described in the content of the invention.

Brief Description of the Drawings

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Mode for Carrying Out the Invention

[0014] The advantages and features of the present specification, and the methods for achieving them, will become clear by referring to an example described in detail below together with the accompanying drawings. However, the present specification is not limited to the embodiments disclosed below, and can be realized in various different forms. Merely, the present examples are provided to complete the disclosure of the present specification and to fully inform those having ordinary knowledge in the technical field to which the present specification belongs of the scope of the invention. The present specification is defined only by the scope of the claims.

[0015] For the purpose of explaining an example of the present specification, the shapes, sizes, ratios, angles, numbers, etc. shown in the drawings are exemplary, and the present specification is not limited to the matters shown in the drawings. The same reference numerals throughout the specification refer to the same components. Also, in explaining the present specification, when it is determined that a specific explanation of related known technologies would unnecessarily obscure the gist of the present invention, the detailed explanation thereof is omitted.

[0016] When terms such as "including", "having", "consisting of", etc. mentioned in the present specification are used, other parts can be added unless "only" is used. When a component is expressed in the singular, it includes the case of including a plurality unless otherwise specifically stated.

[0017] When interpreting the components, unless there is a separate explicit description, it should be interpreted as including the range of errors.

[0018] When it is an explanation about the positional relationship, for example, when the positional relationship between two parts is described by "~above", "~upper part of", "~lower part of", "~beside", etc., unless "immediately" or "directly" is used, one or more other parts can also be located between the two parts.

[0019] When it is an explanation about the relationship of time, for example, when the temporal front-back relationship is described by "~after", "~subsequent to", "~next", "~before", etc., unless "immediately" or "directly" is used, it can also include cases where it is not continuous.

[0020] The first, second, etc. are used to describe various components, but these components are not limited by these terms. These terms are simply used to distinguish one component from other components. Therefore, the first component mentioned below may also be the second component within the technical idea of the present invention.

[0021] The term "at least one" must be understood to include all combinations that can be presented from one or more related items. For example, the meaning of "at least one of the first item, the second item, and the third item" can be considered to include not only each of the first item, the second item, or the third item alone, but also all combinations of two or more items that can be presented from among the first item, the second item, and the third item.

[0022] The features of each of several embodiments in this specification can be partially or wholly combined or combined with each other, enabling various technical linkages and drives, and each example can be implemented independently of each other and can also be implemented together in a related relationship.

[0023] Hereinafter, an acoustic generator for a vehicle according to an embodiment of the present specification and an embodiment of a vehicle including the same will be described in detail with reference to the attached drawings. When adding reference numerals to the components of each drawing, the same components can have the same numerals as much as possible, even if they are shown on other drawings. And, the scale of the components shown in the attached drawings can have a scale different from the actual one for convenience of explanation, but is not limited to the scale shown in the drawings.

[0024] FIG. 1 is a diagram showing an acoustic generator for a vehicle according to an embodiment of the present specification.

[0025] Referring to FIG. 1, an acoustic generator 30 for a vehicle according to an embodiment of the present specification can include an acoustic generator 31 arranged or mounted inside the vehicle so as to output sound (S) to one or more of the internal space (IS) and the outside of the vehicle 10.

[0026] The vehicle 10 can include a structure 110 and an interior material (interior material or interior finish material) 130. In the following description, for convenience of explanation, the "structure 110" is referred to as the "vehicle structure 110", and the "interior material 130" is referred to as the "vehicle interior material 130".

[0027] The vehicle structure 110 can include, but is not limited to, a main frame, a side frame, a door frame, a glass window, and a seat frame. For example, the main frame can include, but is not limited to, a dash panel, a pillar panel, a roof panel, and a floor panel. For example, the door frame can include, but is not limited to, a door inner panel and a door outer panel.

[0028] The vehicle interior material 130 can include all components that constitute the interior of the vehicle 10, or can include all components arranged in the interior space (IS) of the vehicle 10. For example, the vehicle interior material 130 can be, but is not limited to, an interior member or an interior finishing material of the vehicle 10.

[0029] The vehicle interior material 130 according to the embodiments of the present specification can be configured to cover the vehicle structure 110 in the interior or the interior space (IS) of the vehicle 10 and be exposed in the interior or the interior space (IS) of the vehicle 10. For example, the vehicle interior material 130 can be configured to cover at least one or more surfaces (or interior surfaces) of the main frame (or vehicle body), side frame (or side body), door frame (or door body), handle frame (or steering hub), and seat frame that are exposed in the interior space (IS) of the vehicle 10. The vehicle interior material 130 according to the embodiments of the present specification can include a dashboard, a filler interior material (or filler trim), a floor interior material (or floor carpet), a roof interior material (or headliner), a door interior material (or door trim), a handle interior material (or steering cover), a seat interior material, a rear package interior material (or the shelf of the rear seat), an overhead console (or interior lighting interior material), a rearview mirror, a glove box, and a sun visor, etc.

[0030] The vehicle interior material 130 according to the embodiments of this specification can include, but is not limited to, any one or more of plastic, fiber, leather, glass, and metal. For example, the vehicle interior material 130 made of plastic material can include injection molded articles. The vehicle interior material 130 made of plastic material can be an injection molded article realized by an injection molding process using a thermoplastic resin or a thermosetting resin, but is not limited thereto. The vehicle interior material 130 made of fiber material can include at least one or more of plastic composite fibers, carbon fibers (or aramid fibers), and natural fibers. The skin member 133 made of fiber material can be a woven sheet, a knitted sheet, or a non-woven fabric, but is not limited thereto. The vehicle interior material 130 made of leather can include, but is not limited to, natural leather or artificial leather.

[0031] The vehicle interior material 130 according to the embodiments of this specification can include at least one or more of a flat surface portion and a curved surface portion. For example, the vehicle interior material 130 can have a surface structure corresponding to the surface structure of the corresponding vehicle structure 110, or can have a surface structure different from the surface structure of the corresponding vehicle structure 110.

[0032] According to the embodiments of this specification, the vehicle acoustic generator 30 can be disposed between the vehicle structure 110 and the vehicle interior material 130, or disposed in the vehicle interior material 130 to vibrate the vehicle interior material 130, so that sound (S) can be generated by the vibration of the vehicle interior material 130. For example, the vehicle acoustic generator 30 can directly vibrate the vehicle interior material 130 to generate sound (S) by the vibration of the vehicle interior material 130. For example, the vehicle acoustic generator 30 can be disposed between at least one or more of the vehicle structures 110 such as a dashboard, a filler interior material, a floor interior material, a roof interior material, a door interior material, a handle interior material, and a seat interior, or can include at least one or more acoustic generators 31 disposed in at least one or more of a rear package interior material, an overhead console, a rearview mirror, a glove box, and a sun visor.

[0033] The sound generator 31 is disposed on the vehicle structure 110 and can be covered by the vehicle interior material 130. For example, the sound generator 31 can be configured to be disposed between the vehicle structure 110 and the vehicle interior material 130 or to be disposed on the vehicle interior material 130.

[0034] The sound generator 31 can be configured to vibrate the vehicle interior material 130 and output sound (S) to one or more of the interior space (IS) of the vehicle 10 and the outside. According to the embodiments of the present specification, the sound generator 31 can vibrate the vehicle interior material 130 and generate sound (S) by the vibration of the vehicle interior material 130. For example, the sound generator 31 can directly vibrate the vehicle interior material 130 and generate sound (S) by the vibration of the vehicle interior material 130. The vehicle interior material 130 can function as a vibration plate (diaphragm), an acoustic vibration plate, or an acoustic generating plate for the output of sound (S). For example, since the vehicle interior material 130 has a larger size than the sound generator 31, by functioning as a large-area vibration plate, an acoustic vibration plate, or an acoustic generating plate, the acoustic characteristics in the low-frequency band of the vehicle sound generating device 30 or the sound generator 31 can be improved. For example, the frequency of the sound in the low-frequency band is 500 Hz or less, but is not limited thereto.

[0035] The sound generator 31 according to the embodiments of the present specification can include a coil-type sound generator or a piezoelectric-type sound generator. For example, the sound generator can be expressed by terms such as a sound generation module, an actuator, an exciter, or a transducer, but is not limited thereto.

[0036] Therefore, the vehicle acoustic generator 30 according to the embodiments of this specification can output the sound (S) generated by the vibration of the vehicle interior material 130 due to the vibration of at least one or more acoustic generators 31 arranged between the vehicle structure 110 and the vehicle interior material 130 toward the interior space (IS) of the vehicle 10. Thus, the vehicle interior material 130 can be used as a vibration plate or an acoustic vibration plate. The vehicle acoustic generator 30 according to the embodiments of this specification vibrates the corresponding vehicle interior material 130 through at least one of a plurality of acoustic generators 31 arranged between the vehicle structure 110 and the vehicle interior material 130, and outputs multi-channel realistic sound (S) or stereo sound toward the interior space (IS) of the vehicle 10, but is not limited thereto.

[0037] FIG. 2 is a diagram showing a vehicle acoustic generator according to another embodiment of this specification, which is a modification of the vehicle interior material on which the vehicle acoustic generator described in FIG. 1 is arranged. Thus, in the following description, duplicate descriptions of the remaining configurations except for the vehicle interior material are omitted or simplified.

[0038] Referring to FIG. 2, the vehicle acoustic generator 30 according to another embodiment of this specification may include an acoustic generator 31 that vibrates the vehicle interior material 130 to output sound (S). For example, the vehicle interior material 130 according to the embodiments of this specification may include any one or more of fiber, leather, cloth, wood, and metal.

[0039] The vehicle interior material 130 according to the embodiments of this specification may include a base member 131 and a skin member 133. For example, the base member 131 may be an injection molding, a first interior material, an internal interior material, or a rear interior material, but is not limited thereto. The skin member 133 may be a second interior material, an external interior material, a front interior material, a skin member, a reinforcing member, or a decorative member, but is not limited thereto.

[0040] The base member 131 can be made of a plastic material. The base member 131 according to the embodiments of this specification can include an injection-molded article. For example, the base member 131 can be, but is not limited to, an injection-molded article realized by an injection process using a thermoplastic resin or a thermosetting resin. The base member 131 can be configured to cover the vehicle structure 110 inside the vehicle 10 or in the interior space (IS). For example, the base member 131 can be configured to cover at least one or more surfaces (or interior surfaces) of the main frame, side frame, door frame, and handle frame exposed in the interior space (IS) of the vehicle 10.

[0041] The base member 131 can include at least one or more of a flat portion and a curved portion. For example, the base member 131 can have a surface structure corresponding to or different from the surface structure of the corresponding vehicle structure 110.

[0042] The skin member 133 can be disposed on the base member 131. The skin member 133 can be configured to cover the base member 131 and be exposed in the interior of the vehicle 10 or the interior space (IS) in the interior of the vehicle 10. For example, the skin member 133 can be disposed on or coupled to the front surface of the base member 131 exposed in the interior space (IS) of the vehicle 10.

[0043] The skin member 133 according to the embodiments of this specification can include any one or more of fibers, leather, cloth, wood, and metal. For example, the skin member 133 made of a fiber material can include at least one or more of synthetic fibers, carbon fibers (or aramid fibers), and natural fibers. For example, the skin member 133 made of a fiber material can be, but is not limited to, a woven sheet, a knit sheet, or a non-woven fabric. For example, the skin member 133 made of a fiber material can be a fabric member, but is not limited thereto.

[0044] Synthetic fibers can include polyolefin fibers as a thermoplastic resin, which are environmentally friendly materials that do not emit relatively harmful substances. For example, polyolefin fibers can include polyethylene fibers, polypropylene fibers, or polyethylene terephthalate fibers. Polyolefin fibers can be fibers of a single resin or fibers having a core-shell structure.

[0045] Natural fibers can be any one or a mixture of two or more of jute fibers, kenaf fibers, abaca fibers, coconut fibers, and wood fibers.

[0046] The sound generator 31 is disposed on the vehicle structure 110 and can be covered by the vehicle interior material 130. For example, the sound generator 31 can be disposed between the vehicle structure 110 and the vehicle interior material 130. The sound generator 31 is similar or identical to the sound generator 31 described in FIG. 1 except that it is configured to vibrate the vehicle interior material 130 including the base member 131 and the skin member 133 to output sound (S) to one or more of the interior space (IS) of the vehicle 10 and the outside, and thus the description thereof is omitted.

[0047] Therefore, the vehicle sound generating device 30 according to another example of the present specification can use the vehicle interior material 130 as a vibration plate or an acoustic vibration plate to output sound (S) to the interior space (IS), and can output multi-channel realistic sound (S) or stereo sound to the interior space (IS) of the vehicle 10.

[0048] FIG. 3 is a diagram showing a vehicle sound generating device according to another embodiment of the present specification.

[0049] Referring to FIG. 3, the vehicle sound generating device 30 according to another embodiment of the present specification can include a sound generator 33 disposed on the vehicle glass window 230 of the vehicle 10 to output sound (S). In the following description, for convenience of explanation, the "vehicle glass window 230 of the vehicle 10" is referred to as the "vehicle glass window 230".

[0050] The vehicle glass window 230 of the vehicle 10 can be at least one or more of the front glass window and the side glass window. The vehicle glass window 230 can further include at least one or more of the rear glass and the roof glass window.

[0051] The vehicle glass window 230 according to the embodiments of this specification can be configured to be entirely transparent. The vehicle glass window 230 according to other examples can include a transparent portion and a translucent portion surrounding the transparent portion. The vehicle glass window 230 according to other examples can include a transparent portion and an opaque portion surrounding the transparent portion.

[0052] The sound generator 33 can be configured to be transparent or translucent. For example, when the vehicle glass window 230 is entirely transparent, the sound generator 33 can be configured to be transparent and disposed in the middle region or the peripheral region of the vehicle glass window 230. When the vehicle glass window 230 includes a translucent portion or an opaque portion, the sound generator 33 can be configured to be translucent or opaque and disposed in the translucent portion or the opaque portion of the vehicle glass window 230. For example, the sound generator 33 can be any one of a transparent sound generator, a translucent sound generator, an opaque sound generator, and a transparent sound generation module, and is not limited thereto.

[0053] The sound generator 33 can be disposed on one surface (or the indoor surface) of the vehicle glass window 230 exposed to the interior of the vehicle 10 or the indoor space (IS). For example, the vehicle sound generating device 30 can include at least one or more sound generators 33 disposed on the vehicle glass window 230, or can include a plurality of sound generators 33 disposed on the vehicle glass window 230. As an embodiment of this specification, the sound generator 33 can be disposed on at least one or more of the front glass window and the side glass window, and can be additionally disposed on at least one or more of the rear glass and the roof glass window.

[0054] The sound generator 31 is configured to output sound (S) to one or more of the interior space (IS) of the vehicle 10 and the outside by its own vibration, or to vibrate the vehicle glass window 230 to output sound (S) to one or more of the interior space (IS) of the vehicle 10 and the outside.

[0055] Therefore, the vehicle sound generating device 30 according to another example of the present specification is disposed on the vehicle glass window 230, vibrates itself, or uses the vehicle glass window 230 as an acoustic vibration plate to output sound (S) to one or more of the interior space (IS) and the outside, and can output multi-channel realistic sound (S) or stereophonic sound to one or more of the interior space (IS) of the vehicle 10 and the outside.

[0056] FIG. 4 is a diagram showing a sound generator according to an example of the present specification, which shows the sound generator described in FIG. 1 or FIG. 2.

[0057] Referring to FIG. 4, the sound generator 31 according to an example of the present specification may include a sound generating member 310 disposed in contact with the vehicle interior material 130.

[0058] The sound generating member 310 may include a bobbin and an actuator, an exciter, a transducer, a tweeter, a vibrator, a vibration member, a vibration generator, a sound generating element, or a sound generating unit that utilizes a coil and a magnet.

[0059] The sound generating member 310 according to an example of the present specification may include a first frame 311, a magnet 312, a bobbin 313, and a coil 314. The sound generating member 310 according to an example of the present specification may further include a center pole 315, a second frame 316, and a damper 317.

[0060] The first frame 311 can be configured to be disposed or fixed to the vehicle structure 110. The first frame 311 can support at least one or more of the magnet 312, the center pole 315, and the second frame 316. The first frame 311 can be made of a metallic material having magnetism such as iron (Fe). The first frame 311 can be represented by, but is not limited to, a base frame, a lower plate, a base plate, or a yoke.

[0061] The first frame 311 can include the magnet 312 and a groove portion for accommodating the bobbin 313. For example, the groove portion can be formed recessed from the upper surface of the first frame 311 so as to have a circular or oval shape.

[0062] The magnet 312, the bobbin 313, and the coil 314 can be arranged on the first frame 311 and expressed as a magnetic circuit unit or a magnetic vibration unit for vibrating the vehicle interior material 130.

[0063] The magnetic circuit unit according to the embodiments of the present specification can have a structure of an external magnetic type or a dynamic type in which the magnet 312 is disposed outside the coil 314, or a structure of an internal magnetic type or a micro type in which the magnet 312 is disposed inside the coil 314. The acoustic generating member 310 including the magnetic circuit unit having the structure of the internal magnetic type has the advantage that the leakage magnetic flux is small and the overall size can be small. The acoustic generating member 310 according to the present specification can have a structure of an external magnetic type or an internal magnetic type, and in the following description, it will be described on the premise that it has a structure of an internal magnetic type.

[0064] The magnet 312 can be inserted or accommodated in the groove portion of the first frame 311. The magnet 312 can be a permanent magnet having a form that can be inserted or accommodated in the bobbin 313.

[0065] The bobbin 313 can be arranged on the first frame 311 so as to surround the periphery of the magnet 312. For example, the bobbin 313 can be composed of a circular structure formed of a material processed from pulp or paper, aluminum, magnesium or its alloy, a synthetic resin such as polypropylene, or a polyamide-based fiber, etc., and is not limited thereto. The bobbin 313 can vibrate by magnetic force, for example, by reciprocating up and down, to vibrate the vehicle interior material 130, and sound (S) can be generated by the vibration of the vehicle interior material 130.

[0066] The bobbin 313 according to the embodiment of the present specification can have a circular form or an elliptical form (ellipse or oval), and is not limited thereto. The elliptical bobbin 313 can include an elliptical shape, a rectangular shape with rounded corners, or a non-circular curved shape having a width different from its height, and is not limited thereto. For example, in the elliptical bobbin 313, the ratio of the major axis diameter to the minor axis diameter can be configured to be 1.3:1 to 2:1. The elliptical bobbin 313 can improve the sound in the high frequency band compared to the circular bobbin, and may have excellent heat dissipation characteristics because less heat is generated by vibration.

[0067] The coil 314 according to the embodiment of this specification is wound so as to surround the outer peripheral surface of the bobbin 313 and can receive the supply of an external acoustic signal (or voice signal). The coil 314 can move up and down together with the bobbin 313. When a current is applied to the coil 314, the entire bobbin 313 can vibrate based on Fleming's left-hand rule due to the applied magnetic field formed around the coil 314 and the external magnetic field formed around the magnet 312, for example, reciprocate up and down along the thickness direction (Z) of the vehicle interior material 130. For example, the coil 314 can be expressed as a voice coil or the like, and is not limited to the term.

[0068] The center pole 315 can be housed or inserted into the bobbin 313 and guide the up and down movement of the bobbin 313. For example, by inserting the center pole 315 inside the bobbin 313, the outer peripheral surface of the center pole 315 can be surrounded by the bobbin 313. The center pole 315 can be expressed as an up and down guide or pole pieces or the like, and is not limited to the term.

[0069] The second frame 316 can be arranged at the front end (or edge) of the first frame 311. The second frame 316 can support the damper 317. The second frame 316 according to the embodiment of this specification can be formed at a certain height at the front end (or edge) of the first frame 311 so as to have the same form as the bobbin 313. The second frame 316 according to other examples can be formed at a certain height at the front end (or edge) of the first frame 311 and include a hollow portion having the same form as the bobbin 313. For example, the second frame 316 can be omitted. For example, the second frame 316 can be an edge frame, but is not limited thereto.

[0070] The damper 317 can be connected between the second frame 316 and the magnetic circuit unit. For example, the damper 317 can be connected between the second frame 316 and the bobbin 313. The damper 317 can be expressed in other terms such as a spider, a suspension, or an edge.

[0071] One end of the damper 317 according to the embodiments of this specification can be connected to the second frame 316, and the other end of the damper 317 can be connected to the outer upper surface of the bobbin 313. The damper 317 can be configured with a bellows structure between one end and the other end to adjust the vibration of the bobbin 313 while contracting and relaxing due to the vertical movement of the bobbin 313. The damper 317 can limit the vibration distance of the bobbin 313 through the restoring force by connecting between the bobbin 313 and the second frame 316. For example, when the bobbin 313 vibrates more than a certain distance or less than a certain distance, the bobbin 313 can return to its original position by the restoring force of the damper 317.

[0072] According to the embodiments of this specification, when the second frame 316 is omitted, the damper 317 can be connected between the first frame 311 and the bobbin 313.

[0073] Since the sound generator 31 or the sound generating member 310 is disposed between the vehicle structure 110 and the vehicle interior material 130, it must have a relatively thin thickness. As a result, when the height (or thickness) of the bobbin 313 is low, there is a problem that the sound pressure becomes low. Therefore, the inventors of this specification designed a structure to increase the area of the damper 317 disposed around the bobbin 313 in order to solve the problem of low sound pressure caused by the decrease in the height of the bobbin 313. When increasing the area of the damper 317, it was recognized that the arrangement space for the wiring to apply current to the coil 314 becomes narrow, so interference between the wiring and the damper 317 occurs. Therefore, through a plurality of experiments, the damper 317 is configured with a conductor so that the damper 317 can also serve as a wiring function.

[0074] The damper 317 according to the embodiment of the present specification may include a metal material electrically connected to the coil 314. For example, the damper 317 may be made of stainless steel or copper (Cu), etc., but is not limited thereto.

[0075] The acoustic generating member 310 according to the embodiment of the present specification may further include a bobbin protection member 318.

[0076] The bobbin protection member 318 may be disposed on the front surface (or tip) of the bobbin 313 to transmit the lifting (or vibration) of the bobbin 313 to the vehicle interior material 130. The bobbin protection member 318 according to the embodiment of the present specification may have a ring shape attached to the front surface of the bobbin 313, a disk shape covering the entire front surface of the bobbin 313, or a cap shape enclosing the front surface and the upper outer surface of the bobbin 313. The bobbin protection member 318 can be expressed as a bobbin ring, etc., and is not limited to the terms.

[0077] According to the embodiment of the present specification, the bobbin protection member 318 can be connected or coupled to the vehicle interior material 130 via the adhesive member 319.

[0078] The adhesive member 319 may include a double-sided tape, a double-sided foam tape, a double-sided foam pad, a double-sided foam pad tape, a double-sided adhesive pad, a double-sided adhesive gap pad, or a double-sided adhesive foam pad, etc., that contains an adhesive resin or has an adhesive layer, but is not limited thereto. According to the embodiment of the present specification, the adhesive resin or adhesive layer of the adhesive member 319 may contain an acrylic-based or urethane-based adhesive substance, but is not limited thereto. For example, the adhesive resin or adhesive layer of the adhesive member 319 may contain an acrylic-based adhesive substance having relatively high hardness compared to a urethane-based adhesive substance having relatively soft characteristics so that the vibration of the bobbin 313 is transmitted to the vehicle interior material 130 without loss.

[0079] The acoustic generating member 310 according to the embodiment of this specification can be arranged or fixed to the vehicle structure 110 via the module coupling member 320.

[0080] The module coupling member 320 can be arranged between the vehicle structure 110 and the acoustic generating member 310. The first frame 311 can be configured to be arranged or fixed to the vehicle structure 110 via the module coupling member 320. Thereby, the first frame 311 can be supported or coupled to the vehicle structure 110. For example, the first frame 311 of the acoustic generating member 310 can further include an extension portion 311a. The extension portion 311a can extend or protrude from the side surface of the first frame 311.

[0081] The module coupling member 320 according to the embodiment of this specification can be arranged between the vehicle structure 110 and the extension portion 311a of the first frame 311. For example, the module coupling member 320 can include, but is not limited to, a double-sided tape, a double-sided foam tape, a double-sided foam pad, a double-sided foam pad tape, a double-sided adhesive pad, a double-sided adhesive gap pad, or a double-sided adhesive foam pad that contains an adhesive resin or has an adhesive layer. For example, the adhesive resin or adhesive layer of the module coupling member 320 can include, but is not limited to, an acrylic-based or urethane-based adhesive substance.

[0082] The module coupling member 320 according to the embodiment of this specification can be a plurality of screws. The plurality of screws can pass through the extension portion 311a of the first frame 311 and be fastened to the vehicle structure 110, thereby arranging the acoustic generating member 310 on the vehicle structure 110.

[0083] The module coupling member 320 according to the embodiment of this specification can be a bolt and a nut. For example, the nut can be arranged or fixed to the vehicle structure 110 that overlaps with the extension 311a of the first frame 311. The bolt can pass through the extension 311a of the first frame 311 and be fastened to the nut. The nut according to the embodiment of this specification can be a self-clinching nut arranged on the vehicle structure 110, and the self-clinching nut can be a PEM nut.

[0084] FIG. 5 is a diagram showing an acoustic generator according to another embodiment of this specification, which shows the acoustic generator described in FIG. 1 or FIG. 2.

[0085] Referring to FIG. 5, the acoustic generator 31 according to another embodiment of this specification can include an acoustic generating member 310, a support member 330, and a connecting member 340.

[0086] The acoustic generating member 310 is arranged to contact the vehicle interior material 130, which is substantially the same as the acoustic generating member 310 described in FIG. 4, so the duplicate description thereof is omitted.

[0087] The support member 330 can be supported by the vehicle structure 110 to support the acoustic generating member 310. The support member 330 can be configured to support the first frame 311 of the acoustic generating member 310. For example, the support member 330 can be seated on the vehicle structure 110 or coupled to the vehicle structure 110 via an adhesive member.

[0088] According to the embodiment of this specification, the support member 330 can include a plastic material or a metal material, but is not limited thereto. For example, the support member 330 can be represented by a plate-like structure, a base structure, a base mechanism, a module support frame, or a module support plate, etc., and is not limited to the terms.

[0089] The connecting member 340 can be disposed between the support member 330 and the vehicle interior member 130. For example, the connecting member 340 can be disposed on the support member 330 so as to surround the sound generating member 310 and can be connected to the vehicle interior member 130. For example, the connecting member 340 can be disposed at an end (or edge) portion of the support member 330 to surround the sound generating member 310. The connecting member 340 can provide an acoustic space (SS) that surrounds the sound generating member 310 between the vehicle interior member 130 and the support member 330. For example, the acoustic space (SS) can be represented by, but is not limited to, a resonance cavity, a resonance part, a resonance tube, or a resonance section. For example, the sound generating member 310 can be disposed in the acoustic space (SS) surrounded by the vehicle interior member 130, the support member 330, and the connecting member 340.

[0090] The connecting member 340 according to the embodiments of the present specification can minimize or prevent interference between vibrations in the vibration region of the vehicle interior member 130 that vibrates due to the sound generating member 310 and vibrations in regions other than the vibration region by defining or limiting the vibration region of the vehicle interior member 130. For example, the connecting member 340 can be represented by, but is not limited to, a partition or an enclosure that defines the acoustic space (SS).

[0091] The connecting member 340 according to the embodiments of the present specification can include, but is not limited to, a double-sided tape, a double-sided foam tape, a double-sided foam pad, a double-sided foam pad tape, a double-sided adhesive pad, a double-sided adhesive gap pad, or a double-sided adhesive foam pad that includes an adhesive resin or has an adhesive layer. For example, the adhesive resin or adhesive layer of the connecting member 340 can include, but is not limited to, an acrylic-based or urethane-based adhesive substance. For example, the adhesive resin or adhesive layer of the connecting member 340 can include a urethane-based adhesive substance having relatively soft characteristics compared to an acrylic-based adhesive substance having relatively high hardness characteristics in order to minimize or prevent the vibration of the vehicle interior member 130 from being transmitted to the support member 330 or the vehicle structure 110.

[0092] The sound generating member 310 can be arranged or fixed to the support member 330 via the module coupling member 320. For example, the module coupling member 320 can integrate the sound generating member 310 and the support member 330 into a single unit by coupling the extension 311a of the first frame 311 to the support member 330.

[0093] The sound generator 31 according to another embodiment of the present specification may be a single structure or a single structure in which the sound generating member 310 and the support member 330 are modularized into one part. For example, the sound generator 31 is fabricated in the form of a finished product such as a single structure or a single structure by a modularization process (or an assembly process) for the sound generating member 310 and the support member 330, and then, during the assembly process of the vehicle 10, it can be mounted or arranged between the vehicle structure 110 and the vehicle interior material 130 by a relatively simple component mounting (or arranging) process. Thus, according to this embodiment, the assemblability of the sound generator 31 can be improved in the process of arranging or assembling the sound generator 31 in the vehicle 10, and thereby the productivity can be improved.

[0094] FIG. 6 is a view showing a sound generator according to another embodiment of the present specification, which is a modification of the configuration of the support member of the sound generator described in FIG. 5. Thus, in the following description, the same configurations except for the support member of the sound generator and the related configurations will be simplified or omitted.

[0095] Referring to FIG. 6, in the sound generator 31 according to another embodiment of the present specification, the support member 330 can further include a hole 331 that overlaps the sound generating member 310.

[0096] The hole 331 can be configured to penetrate the support member 330 so as to accommodate a part of the back surface of the sound generating member 310. The hole 331 can be formed to penetrate the support member 330 to expose the back surface of the sound generating member 310 to the vehicle structure 110. For example, the hole 331 can have a circular, elliptical, or polygonal shape, and is not limited thereto.

[0097] The hole 331 according to the embodiment of the present specification can have a size capable of accommodating a part of the back surface of the acoustic generating member 310. The acoustic generating member 310 accommodated in the hole 331 can be separated from the support member 330 so as to have a certain gap (G). The gap (G) between the side surface of the support member 330 that defines the hole 331 or is exposed to the hole 331 and the acoustic generating member 310 can be 1 mm or more, and is not limited thereto. For example, when the gap (G) is less than 1 mm, abnormal vibration may occur during the vibration of the acoustic generating member 310 inserted into the hole 331, so the gap (G) can be set to 1 mm or more.

[0098] The thickness of the acoustic generator 31 according to another embodiment of the present specification can be reduced or slimmed down by accommodating a part of the back surface of the acoustic generating member 310 in the hole 331 of the support member 330.

[0099] The vehicle structure 110 can further include a groove portion 111 for accommodating a part of the back surface of the acoustic generating member 310 that penetrates the hole 331 of the support member 330. The vehicle structure 110 can play a role of dissipating the heat of the acoustic generating member 310 generated during the driving of the acoustic generating member 310 by directly facing the acoustic generating member 310 of the acoustic generator 31.

[0100] FIG. 7 is a view showing an acoustic generator according to another embodiment of the present specification, which shows the acoustic generator described in FIG. 1 or FIG. 2.

[0101] Referring to FIG. 7, the acoustic generator 31 according to another embodiment of the present specification can include an acoustic generating member 350 that is connected or attached to the vehicle interior material 130 via an adhesive member 361.

[0102] The sound generating member 350 can be represented by, but is not limited to, a vibration member using a piezoelectric element having piezoelectric characteristics, a piezoelectric oscillator, a piezoelectric vibration member, a piezoelectric actuator, a piezoelectric exciter, a piezoelectric speaker, a film speaker, a piezoelectric tweeter, a film tweeter, a piezoelectric film actuator, an acoustic film actuator, a film exciter, a piezoelectric film speaker, an acoustic film speaker, an acoustic film tweeter, or a piezoelectric film tweeter.

[0103] The sound generating member 350 can be disposed between the vehicle structure 110 and the vehicle interior material 130 to vibrate the vehicle interior material 130 and output sound (S). For example, the sound generating member 350 can vibrate by alternately repeating contraction and expansion due to the piezoelectric effect (or piezoelectric characteristics) caused by an acoustic signal (or voice signal) applied from the outside, and the vehicle interior material 130 can be vibrated through such vibration, whereby sound (S) can be generated by the vibration of the vehicle interior material 130. For example, the sound generating member 350 can directly vibrate the vehicle interior material 130, whereby sound (S) can be generated by the vibration of the vehicle interior material 130. For example, the sound generating member 350 has a frequency of 500 Hz or more and can generate sound (S) in the mid-high frequency band, but is not limited thereto.

[0104] According to the embodiments of the present specification, the sound generating member 350 can be separated from the vehicle structure 110, but is not limited thereto. For example, the separation space between the sound generating member 350 and the vehicle structure 110 can be configured so that the vibration of the sound generating member 350 becomes smooth, but is not limited thereto. For example, the separation space between the sound generating member 350 and the vehicle structure 110 can be the vibration space of the sound generating member 350.

[0105] The connecting member 361 can be the first adhesive member 361. The first adhesive member 361 can be disposed between the acoustic generating member 350 and the vehicle interior member 130. The first adhesive member 361 can be configured to connect or adhere the acoustic generating member 350 to the vehicle interior member 130.

[0106] The first adhesive member 361 can include, but is not limited to, a double-sided tape containing an adhesive resin or having an adhesive layer, a double-sided foam tape, a double-sided foam pad, a double-sided foam pad tape, a double-sided adhesive pad, a double-sided adhesive gap pad, or a double-sided adhesive foam pad. For example, the adhesive resin or adhesive layer of the first adhesive member 361 can include, but is not limited to, an acrylic-based or urethane-based adhesive substance. For example, the adhesive resin or adhesive layer of the first adhesive member 361 can include an acrylic-based adhesive substance having relatively high hardness characteristics compared to a urethane-based adhesive substance having relatively soft characteristics so that the vibration of the acoustic generating member 350 is transmitted to the vehicle interior member 130 without loss.

[0107] The acoustic generator 31 according to another embodiment of the present specification can further include a plate 360 disposed between the acoustic generating member 350 and the vehicle interior member 130.

[0108] The plate 360 can be a vibration plate 360. The vibration plate 360 can vibrate the vehicle interior member 130 in response to the vibration of the acoustic generating member 350. For example, the vibration plate 360 can vibrate due to the vibration of the acoustic generating member 350 and transmit the vibration of the acoustic generating member 350 to the vehicle interior member 130, thereby vibrating the vehicle interior member 130.

[0109] The vibrating plate 360 according to the embodiments of the present specification can include at least one or more materials among plastic materials, metal materials, and wood materials. As an embodiment of the present specification, the vibrating plate 360 can be made of any one or more materials among plastic materials, metal materials, and wood materials. As another embodiment, the vibrating plate 360 can be composed of two or more layers among a plastic layer, a metal layer, and a wood layer. For example, when the vibrating plate 360 includes a metal material or a metal layer, the vibrating plate 360 can be made of any one or more materials among aluminum (Al), magnesium (Mg), magnesium (Mg) alloy, magnesium lithium (Li) alloy, and aluminum (Al) alloy, and is not necessarily limited thereto. For example, the magnesium alloy can contain at least one or more of aluminum and zinc (Zn) and manganese (Mn). The magnesium alloy is the lightest material among the metal materials that can be used as the vibrating plate of a speaker, has relatively high specific stiffness (strength / specific gravity) and relatively high vibration damping ability (the ability to absorb vibration and gradually reduce vibration), and has the characteristic of excellent dimensional stability against changes in temperature and time. Thereby, the vibrating plate 360 can improve the characteristics of the sound (S) generated by the vibration of the vehicle interior material 130 in response to the vibration of the sound generating member 350.

[0110] The vibrating plate 360 can be attached or coupled to the sound generating member 350 via the first adhesive member 361. The vibrating plate 360 can be attached or coupled to the vehicle interior material 130 of the vehicle via the adhesive member 365. For example, the adhesive member 365 can be the second adhesive member 365. The second adhesive member 365 can be made of the same substance as the first adhesive member 361, but is not limited thereto.

[0111] When the sound generator 31 according to the present embodiment further includes the vibrating plate 360, the vehicle interior material 130 can be a fiber material, but is not necessarily limited thereto.

[0112] Therefore, the acoustic generator 31 according to another embodiment of the present specification can output sound (S) or stereo sound to one or more of the interior space (IS) of the vehicle 10 and the outside by vibrating the vehicle interior member 130 through the acoustic generating member 350 including the piezoelectric element. Further, the acoustic generator 31 according to another embodiment of the present specification can have a thin thickness by including the acoustic generating member 350 including the piezoelectric element, and thus can be disposed between the vehicle structure 110 and the vehicle interior member 130 without changing the structure of the vehicle structure 110 and / or the vehicle interior member 130.

[0113] When the vehicle glass window 230 includes an opaque region, the acoustic generator 31 according to the embodiment of the present specification can be disposed in the opaque region of the vehicle glass window 230. For example, the opaque region of the vehicle glass window 230 may be, but is not limited to, an end (or edge) portion of the vehicle glass window 230. The acoustic generator 31 according to the embodiment of the present specification can output sound (S) to one or more of the interior space (IS) of the vehicle 10 and the outside by its own vibration, or can be configured to vibrate the opaque region of the vehicle glass window 230 to output sound (S) to one or more of the interior space (IS) of the vehicle 10 and the outside.

[0114] Further, the acoustic generator 31 according to another embodiment of the present specification can be disposed on the vehicle glass window 230 as described with reference to FIG. 3. In this case, the acoustic generating member 350 can be configured to be transparent or translucent. For example, the piezoelectric vibrating portion of the acoustic generating member 350 can be configured to be transparent or translucent and disposed on the vehicle glass window 230 through a transparent or translucent adhesive member. The acoustic generator 31 including the transparent or translucent acoustic generating member 350 can output sound (S) to one or more of the interior space (IS) of the vehicle 10 and the outside by its own vibration, or can be configured to vibrate the vehicle glass window 230 to output sound (S) to one or more of the interior space (IS) of the vehicle 10 and the outside.

[0115] FIG. 8 is a diagram showing an acoustic generator according to another embodiment of the present specification, which shows the acoustic generator described in FIG. 1 or FIG. 2.

[0116] Referring to FIG. 8, the acoustic generator 31 according to another embodiment of the present specification may include a first plate 370, an acoustic generating member 350, a second plate 372, and a plate connecting member 374.

[0117] The first plate 370 may be a vibrating plate. The first plate 370 may include at least one of a plastic material, a metal material, and a wood material. Since the first plate 370 is substantially the same as the vibrating plate 360 described in FIG. 7, duplicate description thereof is omitted.

[0118] The first plate 370 can be attached or coupled to the acoustic generating member 350 via an adhesive member 361. The first plate 370 can be attached or coupled to the vehicle interior material 130 of the vehicle 10 via an adhesive member 365. For example, the adhesive member 361 may be the first adhesive member 361, which is substantially the same as the first adhesive member 361 described in FIG. 7, so the same reference numeral is given and duplicate description thereof is omitted. For example, the adhesive member 365 may be the second adhesive member 365, which is substantially the same as the second adhesive member 365 described in FIG. 7, so the same reference numeral is given thereto and duplicate description thereof is omitted.

[0119] The acoustic generating member 350 is attached or coupled to the back surface of the first plate 370 via the adhesive member 361, which is substantially the same as the acoustic generating member 350 described in FIG. 7, so the same reference numeral is given thereto and duplicate description thereof is omitted.

[0120] The second plate 372 can be disposed on the back surface of the acoustic generating member 350. The second plate 372 can be configured to cover the back surface of the acoustic generating member 350. According to an embodiment of the present specification, the second plate 372 can be separated from the back surface of the acoustic generating member 350 and is not necessarily limited thereto. According to an embodiment of the present specification, the second plate 372 can be separated from the vehicle structure 110 and is not limited thereto. For example, the separation space between the second plate 372 and the vehicle structure 110 can be configured such that the vibration of the acoustic generating member 350 is smoothed, but is not limited thereto. For example, the separation space between the second plate 372 and the vehicle structure 110 can be a vibration space of the acoustic generating member 350.

[0121] The second plate 372 can include at least one of a plastic material, a metal material, and a wood material. The second plate 372 can be made of the same or different material as the first plate 370. For example, the second plate 372 can be made of a plastic material. For example, the second plate 372 can be expressed as a plate-like structure, a base structure, a base mechanism, a module support frame, or a module support plate, etc., and is not limited to the terms.

[0122] The plate connecting member 374 can be arranged on the first plate 370 to support the second plate 372. The plate connecting member 374 according to the embodiment of the present specification can be arranged between the first plate 370 and the second plate 372. The plate connecting member 374 according to the embodiment of the present specification can be arranged between the first plate 370 and the second plate 372 so as to surround the acoustic generating member 350. For example, the plate connecting member 374 can be arranged between the end (or edge) portions of the first plate 370 and the second plate 372 respectively. The plate connecting member 374 can surround the acoustic generating member 310. The plate connecting member 374 can provide an acoustic space (SS) that surrounds the acoustic generating member 350 between the first plate 370 and the second plate 372. For example, the acoustic space (SS) can also be expressed by a sound box, a sounding part, a resonance tube, or a resonance part, and is not limited to the terms. For example, the acoustic generating member 350 can be arranged in the acoustic space (SS) surrounded by the first plate 370, the second plate 372, and the plate connecting member 374.

[0123] The distance between the first plate 370 and the second plate 372 due to the thickness (or height) of the plate connecting member 374 can be made larger than the distance between the first plate 370 and the back surface of the acoustic generating member 350. For example, the shortest distance between the first plate 370 and the second plate 372 due to the thickness (or height) of the plate connecting member 374 can be made larger than the shortest distance between the first plate 370 and the back surface of the acoustic generating member 350. Since the plate connecting member 374 can be made of substantially the same material as the connecting member 340 described in FIG. 5, redundant description thereof will be omitted.

[0124] The plate connecting member 374 can integrate the first plate 370 that supports the acoustic generating member 350 and the second plate 372 that covers the back surface of the acoustic generating member 350 into one housing by coupling the first plate 370 to the second plate 372. Thereby, in the acoustic generator 31 according to the present embodiment, the first plate 370 that supports the acoustic generating member 350 and the second plate 372 that covers the back surface of the acoustic generating member 350 are modularized into one component and can be a single structure or a single construct. For example, the acoustic generator 31 is manufactured in the form of a finished product such as a single structure or a single construct by a modularization process (or an assembly process) of the first plate 370 that supports the acoustic generating member 350 and the second plate 372 that covers the back surface of the acoustic generating member 350, and then, during the assembly process of the vehicle 10, it can be mounted or arranged between the vehicle structure 110 and the vehicle interior material 130 by a relatively simple component mounting (or arranging) process. Thereby, according to the present embodiment, in the process of arranging or assembling the acoustic generator 31 in the vehicle 10, the assemblability of the acoustic generator 31 can be improved, and thereby the productivity can be enhanced.

[0125] FIG. 9 is a view showing an acoustic generator according to another embodiment of the present specification, which shows the acoustic generator described in FIG. 3.

[0126] Referring to FIG. 9, the acoustic generator 33 according to another embodiment of the present specification is arranged on the vehicle glass window 230 to output the sound (S) to one or more of the interior space (IS) and the exterior of the vehicle 10 by the vibration of the acoustic generator 33, or to vibrate the vehicle glass window 230 to output the sound (S) to one or more of the interior space (IS) and the exterior of the vehicle 10. The acoustic generator 33 can be configured to be transparent or translucent. For example, when the acoustic generator 33 is arranged in the transparent region of the vehicle glass window 230, the acoustic generator 33 can be configured to be transparent. For example, when the acoustic generator 33 is arranged in the translucent region of the vehicle glass window 230, the acoustic generator 33 can be configured to be transparent or translucent. For example, when the acoustic generator 33 is arranged in the opaque region of the vehicle glass window 230, the acoustic generator 33 can be configured to be transparent, translucent, or opaque. For example, the opaque region or regions of the vehicle glass window 230 can be, but are not limited to, the edge (or rim) portion of the vehicle glass window 230.

[0127] The acoustic generator 33 can include a plate 380, an acoustic generating member 350, and a connecting member 385.

[0128] The plate 380 can be arranged parallel to the vehicle glass window 230. The plate 380 can support the acoustic generating member 350. The plate 380 can be configured to be transparent or translucent. The plate 380 according to the embodiment of the present specification can include a transparent or translucent plastic material or a glass material. For example, when the acoustic generator 33 is arranged in the transparent region of the vehicle glass window 230, the plate 380 can be made of a transparent material. For example, when the acoustic generator 33 is arranged in the translucent region of the vehicle glass window 230, the plate 380 can be made of a transparent material or a translucent material.

[0129] The plate 380 can output sound (S) to one or more of the interior space (IS) of the vehicle 10 and the outside by vibrating in conjunction with the vibration of the sound generating member 350. For example, the plate 380 can be expressed as a vibrating plate, a sound plate, a sound output plate, or a transparent plate, etc., and is not limited to the terms.

[0130] The sound generating member 350 can be attached or coupled to the plate 380 via the adhesive member 361. For example, the sound generating member 350 can be disposed on the back surface of the plate 380 facing the vehicle glass window 230. The sound generating member 350 can be attached or coupled to the back surface of the plate 380 via the adhesive member 361. Since the sound generating member 350 is substantially the same as the sound generating member 350 described in FIG. 7, the same reference numerals are given thereto, and the duplicate description thereof is omitted.

[0131] Since the adhesive member 361 is substantially the same as the adhesive member 361 described in FIG. 7, the same reference numerals are given thereto, and the duplicate description thereof is omitted.

[0132] The connecting member 385 can be disposed between the plate 380 and the vehicle glass window 230. The connecting member 385 can be disposed on the plate 380 so as to surround the sound generating member 350 and connected to the vehicle glass window 230. For example, the connecting member 385 can be disposed at the end (or edge) portion of the plate 380 to surround the sound generating member 350. The connecting member 385 can provide a sound space (SS) that surrounds the sound generating member 350 between the vehicle glass window 230 and the plate 380. For example, the sound space (SS) can also be expressed as a sound barrel, a sounding portion, a resonance cylinder, or a resonance portion, etc., and is not limited to the terms. For example, the sound generating member 350 can be disposed in the sound space (SS) surrounded by the vehicle glass window 230, the plate 380, and the connecting member 385.

[0133] The distance between the plate 380 and the vehicle glass window 230 due to the thickness (or height) of the connecting member 385 can be made greater than the distance between the plate 380 and the back surface of the acoustic generating member 350. For example, the shortest distance between the plate 380 and the vehicle glass window 230 due to the thickness (or height) of the connecting member 385 can be made greater than the shortest distance between the plate 380 and the back surface of the acoustic generating member 350.

[0134] The connecting member 385 according to the embodiments of the present specification may include a transparent adhesive resin, or a double-sided tape having a transparent adhesive layer, a double-sided foam tape, a double-sided foam pad, a double-sided foam pad tape, a double-sided adhesive pad, a double-sided adhesive gap pad, or a double-sided adhesive foam pad, etc., and is not limited thereto. For example, the transparent adhesive resin or the transparent adhesive layer of the connecting member 385 may include an adhesive substance having relatively soft properties.

[0135] The acoustic generator 33 according to another embodiment of the present specification may further include a cover plate connected to the connecting member 385 so as to cover the acoustic generating member 350.

[0136] The cover plate can cover the back surface of the acoustic generating member 350 facing the vehicle glass window 230. The cover plate can be made of a transparent material. The cover plate can be attached to the vehicle glass window 230 via an adhesive member. Also, the cover plate can support the plate 380 via the connecting member 385. The connecting member 385 can integrate the plate 380 that supports the acoustic generating member 350 and the cover plate that covers the back surface of the acoustic generating member 350 into one housing by disposing or coupling the plate 380 to the cover plate. Thereby, the acoustic generator 33 according to the present embodiment can be a single structure or a single structure in which the plate 380 that supports the acoustic generating member 350 and the cover plate that covers the back surface of the acoustic generating member 350 are modularized into one component.

[0137] FIG. 10 is a diagram showing an acoustic generating member according to an embodiment of the present specification, which shows the acoustic generating member described in FIGS. 7 to 9.

[0138] Referring to FIG. 10, the acoustic generating member 350 according to an embodiment of the present specification may include a piezoelectric vibrating part 351, a first electrode part (E1), and a second electrode part (E2).

[0139] The piezoelectric vibrating part 351 may include a piezoelectric material including a piezoelectric effect, a piezoelectric material (or electroactive material). For example, the piezoelectric material may have a characteristic in which a potential difference is generated by dielectric polarization accompanying a change in the relative positions of positive (+) ions and negative (-) ions while a pressure or torsional phenomenon acts on the crystal structure by an external force, and vibration is generated by an electric field due to an applied voltage in the opposite direction. The piezoelectric vibrating part 351 can be expressed by other terms such as a vibrating layer, a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a vibrating part, a piezoelectric material part, an electroactive part, a piezoelectric structure, an inorganic material layer, or an inorganic material part, and is not limited thereto.

[0140] The piezoelectric vibrating part 351 is composed of a transparent, translucent, or opaque piezoelectric material (or electroactive material) and can be transparent, translucent, or opaque. For example, when the acoustic generating member 350 according to an embodiment of the present specification is attached or bonded to an interior material of a vehicle, the piezoelectric vibrating part 351 is composed of a transparent, translucent, or opaque piezoelectric material and can be transparent, translucent, or opaque. For example, when the acoustic generating member 350 according to an embodiment of the present specification is attached or bonded to a vehicle glass window, the piezoelectric vibrating part 351 is composed of a transparent or translucent piezoelectric material and can be transparent or translucent.

[0141] The piezoelectric vibrating part 351 according to an embodiment of the present specification may be composed of a ceramic-based material capable of realizing relatively high vibration or a piezoelectric ceramic having a perovskite crystal structure. The perovskite crystal structure has piezoelectric and inverse piezoelectric effects and can be a plate-like structure having orientation. The perovskite crystal structure is ABO 3It is represented by the chemical formula, the A site can consist of a divalent metal element, and the B site can consist of a tetravalent metal element. As an example, ABO 3 In the chemical formula, the A site and the B site can be cations, and O can be an anion. For example, PbTiO 3 , PbZrO 3 , PbZrTiO 3 , BaTiO 3 , and SrTiO 3 can include at least one of, but is not limited to, these.

[0142] The piezoelectric vibrating part 351 according to the examples in this specification can include a PZT (lead zirconate titanate) - based material containing lead (Pb), zirconium (Zr), and titanium (Ti), or a PZNN (lead zirconate nickel niobate) - based material containing lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but is not limited thereto. Alternatively, the piezoelectric vibrating part 351 can include at least one or more of CaTiO 3 , BaTiO 3 , and SrTiO 3 but is not limited thereto.

[0143] The piezoelectric vibrating part 351 according to the examples in this specification can be configured in a circular form, an elliptical form, or a polygonal form, but is not limited thereto.

[0144] The first electrode portion (E1) is disposed on the first surface (or upper surface) of the piezoelectric vibration portion 351 and can be electrically connected to the first surface of the piezoelectric vibration portion 351. For example, the first electrode portion (E1) can have a single-body electrode shape disposed over the entire first surface of the piezoelectric vibration portion 351. For example, the first electrode portion (E1) can have the same form as the piezoelectric vibration portion 351, but is not limited thereto. The first electrode portion (E1) according to the embodiments of the present specification can be made of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the transparent or semi-transparent conductive material can include, but is not limited to, ITO (indium tin oxide) or IZO (indium zinc oxide). The opaque conductive material can include, or can be made of an alloy of, aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), or magnesium (Mg), etc., but is not limited thereto.

[0145] The second electrode portion (E2) is disposed on the second surface (or back surface) opposite to the first surface of the piezoelectric vibration portion 351 and can be electrically connected to the second surface of the piezoelectric vibration portion 351. For example, the second electrode portion (E2) can have a single-body electrode shape disposed over the entire second surface of the piezoelectric vibration portion 351. For example, the second electrode portion (E2) can have the same form as the piezoelectric vibration portion 351 while having a larger size than the piezoelectric vibration portion 351, but is not limited thereto. The second electrode portion (E2) according to the embodiments of the present specification can be made of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode portion (E2) can be made of the same material as the first electrode portion (E1), but is not limited thereto. As another example, the second electrode portion (E2) can be formed of a material different from that of the first electrode portion (E1).

[0146] The piezoelectric vibrating part 351 can be polarized (or poled) by a constant voltage applied to the first electrode part (E1) and the second electrode part (E2) in a constant temperature atmosphere or a temperature atmosphere that changes from high temperature to normal temperature, but is not limited thereto. For example, the piezoelectric vibrating part 351 can vibrate by alternately or repeatedly contracting and expanding due to the reverse piezoelectric effect by an acoustic signal (or voice signal) applied to the first electrode part (E1) and the second electrode part (E2) from the outside.

[0147] According to the embodiments of this specification, either the first electrode part (E1) or the second electrode part (E2) can be attached or coupled to the vehicle interior material or the vehicle glass window via an adhesive member. For example, either the first electrode part (E1) or the second electrode part (E2) can be attached or coupled to the vehicle interior material 130, the vehicle glass window 230, or the plates 360, 370, 380 via the adhesive member 361 as described in FIGS. 7 to 9.

[0148] The acoustic generating member 350 according to the embodiments of this specification can further include a first protective member and a second protective member.

[0149] The first protective member is disposed on the first electrode part (E1) and can protect the first electrode part (E1). For example, the first protective member can be made of a plastic material, a fiber material, or a wood material.

[0150] The second protective member is disposed on the second electrode part (E2) and can protect the second electrode part (E2). For example, the second protective member can be made of a plastic material, a fiber material, or a wood material. For example, the first protective member can be made of the same or another material as the second protective member.

[0151] Either the first protective member or the second protective member can be attached or coupled to the vehicle interior material or the vehicle glass window via an adhesive member. For example, either the first protective member or the second protective member can be attached or coupled to the vehicle interior material 130, the vehicle glass window 230, or the plates 360, 370, 380 via the adhesive member 361, as described with reference to FIGS. 7 to 9.

[0152] FIG. 11 is a diagram showing an acoustic generating member according to another embodiment of the present specification, which shows the acoustic generating member described with reference to FIGS. 7 to 9.

[0153] Referring to FIG. 11, the acoustic generating member 350 according to another embodiment of the present specification can be expressed as a flexible vibrating member, a flexible piezoelectric oscillator, a flexible piezoelectric vibrating member, a flexible acoustic generating member, a flexible piezoelectric actuator, a flexible piezoelectric exciter, a flexible speaker, a flexible piezoelectric speaker, a flexible piezoelectric tweeter, a flexible film tweeter, a flexible acoustic film tweeter, a flexible piezoelectric film tweeter, a flexible piezoelectric film actuator, a flexible acoustic film actuator, a flexible film exciter, a film-type piezoelectric composite actuator, a flexible film speaker, a film-type piezoelectric speaker, or a film-type piezoelectric composite speaker, etc., and is not limited thereto.

[0154] The acoustic generating member 350 according to the embodiment of the present specification can include a piezoelectric vibrating portion 353, a first electrode portion (E1), and a second electrode portion (E2).

[0155] The piezoelectric vibrating portion 353 can include at least one of a piezoelectric material including a piezoelectric effect, a composite piezoelectric material, or an electroactive material. The piezoelectric vibrating portion 353 can be expressed in other terms such as a vibrating layer, a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a vibrating portion, a piezoelectric material portion, an electroactive portion, a piezoelectric structure, a piezoelectric composite layer, a piezoelectric composite, or a piezoelectric ceramic composite.

[0156] The piezoelectric vibrating part 353 is composed of a transparent, translucent, or opaque piezoelectric material and can be transparent, translucent, or opaque.

[0157] The piezoelectric vibrating part 353 according to the embodiment of this specification can include a plurality of first parts 353a and a plurality of second parts 353b. For example, the plurality of first parts 353a and the plurality of second parts 353b can be alternately and repeatedly arranged along the first direction (X direction) (or the second direction (Y)). For example, the first direction (X direction) can be the lateral direction of the piezoelectric vibrating part 353, and the second direction (Y direction) can be the longitudinal direction of the piezoelectric vibrating part 353 that intersects the first direction (X direction), but is not limited thereto. The first direction (X direction) can be the longitudinal direction of the piezoelectric vibrating part 353, and the second direction (Y direction) can be the lateral direction of the piezoelectric vibrating part 353.

[0158] Each of the plurality of first parts 353a can be composed of an inorganic material part. The inorganic material part can include the piezoelectric material described above. For example, since each of the plurality of first parts 353a can be made of substantially the same piezoelectric material as the piezoelectric vibrating part 351 described in FIG. 10, redundant description thereof is omitted.

[0159] Each of the plurality of first portions 353a according to the embodiments of the present specification can be disposed between the plurality of second portions 353b. Each of the plurality of first portions 353a can have a length parallel to the second direction (Y direction) (or the first direction (X direction)) while having a first width (W1) parallel to the first direction (X direction) (or the second direction (Y direction)). Each of the plurality of second portions 353b can have a length parallel to the second direction (Y direction) (or the first direction (X direction)) while having a second width (W2) parallel to the first direction (X direction) (or the second direction (Y direction)). The first width (W1) can be the same as or different from the second width (W2). For example, the first width (W1) can be larger than the second width (W2). For example, the first portion 353a and the second portion 353b can include a linear or stripe form having the same or different sizes from each other. Therefore, the piezoelectric vibrating part 353 can have a resonance frequency of 20 kHz or less by having a 2-2 composite structure, but is not limited thereto, and the resonance frequency of the piezoelectric vibrating part 353 can be changed by at least one of the form, length, and thickness, etc.

[0160] In the piezoelectric vibrating part 353, each of the plurality of first portions 353a and the plurality of second portions 353b can be arranged (or arrayed) side by side in the same plane (or the same layer). Each of the plurality of second portions 353b can be configured to fill the gap between two adjacent first portions 353a, and thus can be connected or adhered to the adjacent first portion 353a. Thereby, the piezoelectric vibrating part 353 can be extended to a desired size or length by side coupling (or connection) of the first portion 353a and the second portion 353b.

[0161] In the piezoelectric vibrating part 353, the width (W2) of each of the plurality of second portions 353b can gradually decrease from the middle portion to both end portions (or both tips or both edge portions) of the piezoelectric vibrating part 353 or the acoustic generating member 350.

[0162] According to the embodiments of the present specification, among the plurality of second portions 353b, the second portion 353b having the largest width (W2) can be located at the portion where the largest stress is concentrated when the piezoelectric vibrating portion 353 or the acoustic generating member 350 vibrates in the vertical direction (Z direction) (or the thickness direction). Among the plurality of second portions 353, the second portion 353b having the smallest width (W2) can be located at the portion where the relatively smallest stress is generated when the piezoelectric vibrating portion 353 or the acoustic generating member 350 vibrates in the vertical direction (Z direction). For example, among the plurality of second portions 353b, the second portion 353b having the largest width (W2) is disposed in the middle portion of the piezoelectric vibrating portion 353, and the second portion 353b having the smallest width (W2) among the plurality of second portions 353b can be disposed at both end portions (or both edge portions) of the piezoelectric vibrating portion 353. Thereby, when the piezoelectric vibrating portion 353 or the acoustic generating member 350 vibrates in the vertical direction (Z direction), interference of sound waves or overlapping of resonance frequencies generated at the portion where the largest stress is concentrated can be minimized, thereby improving the dipping phenomenon of the sound pressure generated in the low frequency band, and improving the flatness of the acoustic characteristics in the low frequency band. For example, the flatness of the acoustic characteristics can be the magnitude of the deviation between the maximum sound pressure and the minimum sound pressure.

[0163] In the piezoelectric vibrating portion 353, each of the plurality of first portions 353a can have different sizes (or widths or breadths). For example, the size (or width or breadth) of each of the plurality of first portions 353a can gradually decrease or increase from the middle portion to both end portions (or both tips or both edge portions) of the piezoelectric vibrating portion 353 or the acoustic generating member 350. In this case, the piezoelectric vibrating portion 353 can improve the sound pressure characteristics of the sound by various natural vibration frequencies caused by the vibrations of the plurality of first portions 353a having different sizes, and can expand the reproduction band of the sound.

[0164] Each of the plurality of second portions 353b can be disposed between the plurality of first portions 353a. Thereby, in the piezoelectric vibrating section 353 or the acoustic generating member 350, the vibration energy due to the links within the unit cell of the first portion 353a can be increased by the second portion 353b, so that the vibration characteristics can be increased, and the piezoelectric characteristics and flexibility can be ensured. For example, the second portion 353b can be one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but is not limited thereto.

[0165] The plurality of second portions 353b according to the embodiments of the present specification can be composed of an organic material portion. For example, by being disposed between the inorganic material portions, the organic material portion can absorb the impact applied to the inorganic material portion (or the first portion), release the stress concentrated on the inorganic material portion, and improve the durability of the piezoelectric vibrating section 353 or the acoustic generating member 350, and can also provide flexibility to the piezoelectric vibrating section 353 or the acoustic generating member 350.

[0166] The second portion 353b according to the embodiments of the present specification can have a lower modulus and viscoelasticity compared to the first portion 353a, whereby the reliability of the first portion 353a, which is vulnerable to impact due to the brittle characteristics of the first portion 353a, can be improved. For example, the second portion 353b can be composed of a material having a loss factor of 0.01 to 1 and a modulus of 0.1 to 10 GPa.

[0167] The organic material portion constituting the second portion 353b can include an organic material, an organic polymer, an organic piezoelectric material, or an organic non-piezoelectric material having flexible characteristics compared to the inorganic material portion of the first portion 353a. For example, the second portion 353b can be represented by, but is not limited to, an adhesive portion having flexibility, an expansion and contraction portion, a bending portion, a damping portion, or a soft portion.

[0168] According to the embodiments of the present specification, the piezoelectric vibration unit 353 can have the form of a single thin film by arranging (or connecting) a plurality of first portions 353a and second portions 353b on the same plane. For example, the piezoelectric vibration unit 353 can have a structure in which a plurality of first portions 353a are connected to one side. For example, the plurality of first portions 353a can have a structure that is connected throughout the piezoelectric vibration unit 353. For example, the piezoelectric vibration unit 353 can vibrate vertically by the first portion 353a having vibration characteristics and can be bent into a curved surface form by the second portion 353b having flexibility. Also, in the piezoelectric vibration unit 353 according to the embodiments of the present specification, the size of the first portion 353a and the size of the second portion 353b can be set according to the piezoelectric characteristics and flexibility required for the piezoelectric vibration unit 353 or the acoustic generating member 350. As an example, in the case of the piezoelectric vibration unit 353 that requires piezoelectric characteristics rather than flexibility, the size of the first portion 353a can be set larger than the size of the second portion 353b. As another example, in the case of the piezoelectric vibration unit 353 that requires flexibility rather than piezoelectric characteristics, the size of the second portion 353b can be set larger than the size of the first portion 353a. Therefore, since the size of the piezoelectric vibration unit 353 can be adjusted according to the required characteristics, there is an advantage that the design of the piezoelectric vibration unit 353 is easy.

[0169] The first electrode portion (E1) can be disposed on the first surface (or upper surface) of the piezoelectric vibration unit 353. The first electrode portion (E1) can be commonly disposed or bonded to the first surface of each of the plurality of first portions 353a and the first surface of each of the plurality of second portions 353b, and can be electrically connected to the first surface of each of the plurality of first portions 353a. For example, the first electrode portion (E1) can have a single electrode form disposed on the entire first surface of the piezoelectric vibration unit 353. For example, the first electrode portion (E1) can have a form substantially the same as that of the piezoelectric vibration unit 353, but is not limited thereto. The first electrode portion (E1) according to the embodiments of the present specification can be made of a transparent conductive material, a translucent conductive material, or an opaque conductive material, as described with reference to FIG. 10.

[0170] The second electrode portion (E2) can be disposed on the second surface (or the back surface) opposite to the first surface of the piezoelectric vibration portion 353. The second electrode portion (E2) can be commonly disposed or coupled to the second surfaces of the respective plurality of first portions 353a and the second surfaces of the respective plurality of second portions 353b, and can be electrically connected to the second surfaces of the respective plurality of first portions 353a. The second electrode portion (E2) can have a single electrode form disposed on the entire second surface of the piezoelectric vibration portion 353. For example, the second electrode portion (E2) can have the same form as the piezoelectric vibration portion 353, but is not limited thereto. The second electrode portion (E2) according to the embodiment of the present specification can be made of a transparent conductive material, a translucent conductive material, or an opaque conductive material, as described with reference to FIG. 10.

[0171] The piezoelectric vibration portion 353 can be polarized (or poled) by a constant voltage applied to the first electrode portion (E1) and the second electrode portion (E2) in a constant temperature atmosphere or a temperature atmosphere that changes from a high temperature to a normal temperature, but is not limited thereto. For example, the piezoelectric vibration portion 353 can vibrate by alternately repeating contraction and expansion due to the reverse piezoelectric effect by an acoustic signal (or a voice signal) externally applied to the first electrode portion (E1) and the second electrode portion (E2).

[0172] For example, the piezoelectric vibration portion 353 can vibrate by vertical vibration and planar vibration by the first electrode portion (E1) and the second electrode portion (E2). The piezoelectric vibration portion 353 can increase the displacement of one or more of the vehicle interior material, the vehicle glass window, and the plate by contraction and expansion in the planar direction, thereby further improving the vibration.

[0173] According to the embodiments of this specification, either the first electrode part (E1) or the second electrode part (E2) can be attached or coupled to the vehicle interior material or the vehicle glass window via an adhesive member. For example, either the first electrode part (E1) or the second electrode part (E2) can be attached or coupled to the vehicle interior material 130, the vehicle glass window 230, or the plates 360, 370, 380 via the adhesive member 361 as described in FIGS. 7 to 9.

[0174] The acoustic generating member 350 according to the embodiments of this specification can further include a first protective member and a second protective member.

[0175] The first protective member is disposed on the first electrode part (E1) and can protect the first electrode part (E1). For example, the first protective member can be made of a plastic material, a fiber material, or a wood material.

[0176] The second protective member is disposed on the second electrode part (E2) and can protect the second electrode part (E2). For example, the second protective member can be made of a plastic material, a fiber material, or a wood material. For example, the first protective member can be made of the same or another material as the second protective member.

[0177] Either the first protective member or the second protective member can be attached or coupled to the vehicle interior material or the vehicle glass window via an adhesive member. For example, either the first protective member or the second protective member can be attached or coupled to the vehicle interior material 130, the vehicle glass window 230, or the plates 360, 370, 380 via the adhesive member 361 as described in FIGS. 7 to 9.

[0178] FIG. 12 is a diagram showing an acoustic generating member according to another embodiment of this specification, which is a modification of the piezoelectric vibration part described in FIG. 11. Accordingly, in the following description, the redundant description of the remaining configuration except for the piezoelectric vibration part will be omitted or simplified.

[0179] Referring to FIG. 12, in the acoustic generating member 350 according to another embodiment of the present specification, the piezoelectric vibrating portion 353 may include a plurality of first portions 353a spaced apart from each other along a first direction (X direction) and a second direction (Y direction), and a second portion 353b disposed between the plurality of first portions 353a.

[0180] Each of the plurality of first portions 353a can be arranged so as to be spaced apart from each other along each of the first direction (X direction) and the second direction (Y direction). For example, each of the plurality of first portions 353a can be arranged in a lattice form while having a hexahedral state having the same size as each other. Since each of the plurality of first portions 353a can be made of a piezoelectric material substantially the same as the first portion 353a described in FIG. 11, the same reference numerals are given thereto, and redundant description thereof is omitted.

[0181] The second portion 353b can be disposed between the plurality of first portions 353a along each of the first direction (X direction) and the second direction (Y direction). The second portion 353b can be connected or adhered to the adjacent first portion 353a by filling the gap between two adjacent first portions 353a or by being configured to surround each of the plurality of first portions 353a. According to an embodiment of the present specification, the width of the second portion 353b disposed between two adjacent first portions 353a along the first direction (X direction) may be the same as or different from the width of the first portion 353a, and the width of the second portion 353b disposed between two adjacent first portions 353a along the second direction (Y direction) can be the same as or different from the width of the first portion 353a. Since the plurality of second portions 353b can be made of an organic material substantially the same as the second portion 353b described in FIG. 11, the same reference numerals are given thereto, and redundant description thereof is omitted.

[0182] Thus, the piezoelectric vibrating portion 353 of the acoustic generating member 350 according to the embodiment of the present specification can have a resonance frequency of 30 MHz or less by including a 1-3 composite structure, but is not limited thereto, and the resonance frequency of the piezoelectric vibrating portion 353 can be changed by at least one of form, length, and thickness.

[0183] FIG. 13 is a diagram showing an acoustic generator according to another embodiment of the present specification, which is a modification of the piezoelectric vibrating part 353 described in FIG. 11. Accordingly, in the following description, redundant descriptions of the remaining configurations except for the piezoelectric vibrating part are omitted or simplified.

[0184] Referring to FIG. 13, in the acoustic generating member 350 according to another embodiment of the present specification, the piezoelectric vibrating part 353 may include a plurality of first parts 353a spaced apart from each other along the first direction (X direction) and the second direction (Y direction), and a second part 353b disposed between the plurality of first parts 353a.

[0185] Each of the plurality of first parts 353a according to the embodiment of the present specification may have a planar structure in the form of a circle. For example, each of the plurality of first parts 353a may have the form of a disk, but is not limited thereto. For example, each of the plurality of first parts 353a may have a point form including an elliptical form, a polygonal form, or a donut form. For example, since each of the plurality of first parts 353a may be made of substantially the same piezoelectric material as the first part 353a described in FIG. 11, the same reference numeral is given thereto, and redundant description thereof is omitted.

[0186] The second part 353b can be disposed between the plurality of first parts 353a along each of the first direction (X direction) and the second direction (Y direction). By configuring the second part 353b to surround each of the plurality of first parts 353a, it can be connected or adhered to the side surfaces of each of the plurality of first parts 353a. Each of the plurality of first parts 353a and the second part 353b can be arranged (or arrayed) side by side in the same plane (or the same layer). For example, since the second part 353b may be made of substantially the same organic material as the second part 353b described in FIG. 11, the same reference numeral is given thereto, and redundant description thereof is omitted.

[0187] Therefore, the piezoelectric vibrating part 353 described in FIG. 13 has a 1-3 composite structure and can be realized as a circular vibration source (or vibrating body), whereby the vibration characteristics or acoustic output characteristics can be improved, and it can have a resonance frequency of 30 MHz or less. Without being limited thereto, the resonance frequency of the piezoelectric vibrating part 353 can be changed by at least one of the form, length, and thickness, etc. In the piezoelectric vibrating part 353 of the acoustic generating member 350 according to another embodiment of this specification, each of the plurality of first parts 353a can have a triangular planar structure instead of a circular planar structure. For example, each of the plurality of first parts 353a can have the form of a triangular plate.

[0188] According to an embodiment of this specification, four adjacent first parts 353a among the plurality of first parts 353a can be arranged adjacent to each other so as to form a square shape (or a regular square shape). Each vertex of the four adjacent first parts 353a forming a square shape can be arranged adjacent to the central part (or the exact center) of the square shape.

[0189] According to another embodiment of this specification, six adjacent first parts 353a among the plurality of first parts 353a can be arranged adjacent to each other so as to form a hexagonal shape (or a regular hexagonal shape). Each vertex of the six adjacent first parts 353a forming a hexagonal shape can be arranged adjacent to the central part (or the exact center) of the hexagonal shape.

[0190] FIG. 14 is a diagram showing an acoustic generating member according to another embodiment of this specification. FIG. 15 is a cross-sectional view taken along line I-I' shown in FIG. 14, which shows the acoustic generating member shown in FIGS. 7 to 9.

[0191] Referring to FIGS. 14 and 15, the acoustic generating member 350 according to another embodiment of this specification can include at least one or more vibration generators 350A, 350B, 350C, 350D, or a plurality of vibration generators 350A, 350B, 350C, 350D.

[0192] Each of the plurality of oscillators 350A, 350B, 350C, and 350D can be electrically separated and arranged while being spaced apart from each other along each of the first direction (X direction) and the second direction (Y direction).

[0193] Each of the plurality of oscillators 350A, 350B, 350C, and 350D can oscillate by alternately or repeatedly contracting and expanding by the piezoelectric effect. For example, each of the plurality of oscillators 350A, 350B, 350C, and 350D can be arranged at regular intervals or tiled along each of the first direction (X direction) and the second direction (Y direction). Thereby, the acoustic generating member 350 in which the plurality of oscillators 350A, 350B, 350C, and 350D are tiled can be a vibration array, a vibration array unit, a vibration module, a vibration module array unit, a vibration generating array unit, a vibration array structure, a tiled vibration array, a tiled vibration array module, or a tiled vibration film.

[0194] Each of the plurality of oscillators 350A, 350B, 350C, and 350D according to the embodiments of the present specification can have a square form. For example, each of the plurality of oscillators 350A, 350B, 350C, and 350D can have a square form with a width of 5 cm or more. For example, each of the plurality of oscillators 350A, 350B, 350C, and 350D can have a square form with a size of 5 cm × 5 cm or more, but is not limited thereto.

[0195] Each of the plurality of oscillators 350A, 350B, 350C, and 350D is arranged or tiled in the form of i × j on the same plane, so that the acoustic generating member 350 can be enlarged by tiling the plurality of oscillators 350A, 350B, 350C, and 350D having a relatively small size. For example, i is the number of oscillators arranged along the first direction (X direction) and is a natural number of 2 or more, and j is the number of oscillators arranged along the second direction (Y direction) and can be a natural number of 1 or more that is the same as or different from i.

[0196] Each of the plurality of vibration generators 350A, 350B, 350C, and 350D can be realized as one vibration device (or single vibration device) that is not driven independently but driven in the form of a complete single entity by being arranged at regular intervals (or distances) or by tiling. According to the embodiments of this specification, based on the first direction (X direction), the first separation distance (D1) between the plurality of vibration generators 350A, 350B, 350C, and 350D can be 0.1 mm or more and less than 3 cm. Also, based on the second direction (Y direction), the second separation distance (D2) between the plurality of vibration generators 350A, 350B, 350C, and 350D can be 0.1 mm or more and less than 3 cm, and is not limited thereto. For example, the first separation distance (D1) and the second separation distance (D2) can be the same as each other. For example, the first separation distance (D1) and the second separation distance (D2) can be the same as each other within the range of process errors.

[0197] Each of the plurality of vibration generators 350A, 350B, 350C, and 350D can be arranged or tiled so as to have a separation distance (or interval) (D1, D2) of 0.1 mm or more and less than 3 cm, and can be driven as one vibration device, and the reproduction band of the sound and the sound pressure characteristics of the sound generated in conjunction with the single-body vibration of such vibration generators 350A, 350B, 350C, and 350D can each be increased. For example, in order to increase the reproduction band of the sound generated in conjunction with the single-body vibration of the plurality of vibration generators 350A, 350B, 350C, and 350D and increase the sound pressure characteristics of the low-frequency band sound, for example, the sound pressure characteristics below 500 Hz, the plurality of vibration generators 350A, 350B, 350C, and 350D can be arranged at intervals of 0.1 mm or more and less than 5 mm.

[0198] According to the embodiments of this specification, when a plurality of vibration generators 350A, 350B, 350C, and 350D are arranged at intervals (D1, D2) of less than 0.1 mm or without intervals (D1, D2), during the vibration of each of the vibration generators 350A, 350B, 350C, and 350D, the reliability of the vibration generators 350A, 350B, 350C, and 350D or the acoustic generating member 350 may be reduced due to the occurrence of cracks or breakage caused by physical contact between them.

[0199] According to the embodiments of this specification, when a plurality of vibration generators 350A, 350B, 350C, and 350D are arranged at intervals (D1, D2) of 3 cm or more, due to the independent vibrations of each of the plurality of vibration generators 350A, 350B, 350C, and 350D, the plurality of vibration generators 350A, 350B, 350C, and 350D may not be driven as one (or a single) vibration device. As a result, the reproduction band of the sound and the sound pressure characteristics of the sound generated in conjunction with the vibrations of the plurality of vibration generators 350A, 350B, 350C, and 350D may be reduced. For example, when the plurality of vibration generators 350A, 350B, 350C, and 350D are arranged at intervals (D1, D2) of 3 cm or more, each of the acoustic characteristics and the sound pressure characteristics in the low frequency band, for example, below 500 Hz, may be reduced.

[0200] According to the embodiments of this specification, when a plurality of vibration generators 350A, 350B, 350C, and 350D are arranged at an interval of 5 mm, since each of the plurality of vibration generators 350A, 350B, 350C, and 350D is not driven as one vibration device, each of the acoustic characteristics and the sound pressure characteristics in the low frequency band, for example, below 200 Hz, may be reduced.

[0201] According to other examples of this specification, when a plurality of vibration generators 350A, 350B, 350C, and 350D are arranged at intervals of 1 mm, the plurality of vibration generators 350A, 350B, 350C, and 350D vibrate as one vibration device, so that the reproduction band of the sound increases and the sound in the low-frequency band, for example, the sound pressure characteristics at 500 Hz or less can increase. For example, when a plurality of vibration generators 350A, 350B, 350C, and 350D are arranged at intervals of 1 mm, the sound generation member 350 can realize a vibration body with an increased area due to the optimized separation distance between the plurality of vibration generators 350A, 350B, 350C, and 350D. Thereby, it can be driven as a large-area vibration body by the single-body vibration of the plurality of vibration generators 350A, 350B, 350C, and 350D, and thereby the reproduction band of the sound generated in conjunction with the large-area vibration of the sound generation member 350 and the sound characteristics and sound pressure characteristics of the low-frequency band can be increased or improved respectively.

[0202] Therefore, in order to realize the single-body vibration (or one vibration device) of the plurality of vibration generators 350A, 350B, 350C, and 350D, the separation distance between the plurality of vibration generators 350A, 350B, 350C, and 350D can be set to be 0.1 mm or more and less than 3 cm. Also, in order to realize the single-body vibration (or one vibration device) of the plurality of vibration generators 350A, 350B, 350C, and 350D and increase the sound pressure characteristics of the low-frequency band sound, the separation distance between the plurality of vibration generators 350A, 350B, 350C, and 350D can be set to be 0.1 mm or more and less than 5 mm.

[0203] The sound generation member 350 according to the embodiment of this specification can include first to fourth vibration generators 350A, 350B, 350C, and 350D that are electrically separated while being separated from each other along the first direction (X direction) and the second direction (Y direction) respectively. For example, the first to fourth vibration generators 350A, 350B, 350C, and 350D can be arranged or tiled in a 2×2 form.

[0204] According to the embodiments of this specification, the first and second oscillators 350A and 350B can be spaced apart from each other along the first direction (X direction). The third and fourth oscillators 350C and 350D can be spaced apart from each of the first and second oscillators 350A and 350B along the second direction (Y direction) while being spaced apart from each other along the first direction (X direction). The first and third oscillators 350A and 350C can face each other and be spaced apart from each other along the second direction (Y direction). The second and fourth oscillators 350B and 350D can face each other and be spaced apart from each other along the second direction (Y direction).

[0205] According to the embodiments of this specification, the first to fourth oscillators 350A, 350B, 350C, and 350D can be realized as one vibrating device, a single integrated vibrating device, or a large-area vibrating body of the acoustic generating member 350. In order to realize the vibration of the large-area vibrating body of the acoustic generating member 350, they can be arranged or tiled at intervals (D1, D2) of 0.1 mm or more and less than 3 cm along each of the first direction (X direction) and the second direction (Y direction), or they can be arranged or tiled at intervals (D1, D2) of 0.1 mm or more and less than 5 mm.

[0206] Each of the first to fourth oscillators 350A, 350B, 350C, and 350D according to the embodiments of this specification can include a piezoelectric vibrating section 353, a first electrode section (E1), and a second electrode section (E2).

[0207] The piezoelectric vibrating section 353 can be composed of a ceramic-based material capable of realizing relatively high vibrations. For example, the piezoelectric vibrating section 353 can have a 1-3 composite having piezoelectric characteristics in a 1-3 vibration mode or a 2-2 composite having piezoelectric characteristics in a 2-2 vibration mode. For example, since the piezoelectric vibrating section 353 includes a first portion 353a and a second portion 353b, similar to the piezoelectric vibrating section 353 described in FIGS. 11 to 13, the same reference numerals are given thereto, and redundant descriptions thereof are omitted.

[0208] The first electrode portion (E1) is disposed on the first surface of the piezoelectric vibrating portion 353 and can be electrically connected to the first surface of the piezoelectric vibrating portion 353. Since this is the same as the first electrode portion (E1) described in FIGS. 11 to 13, the same reference numerals are given thereto, and redundant description thereof is omitted.

[0209] The second electrode portion (E2) is disposed on the second surface of the piezoelectric vibrating portion 353 and can be electrically connected to the second surface of the piezoelectric vibrating portion 353. Since this is the same as the second electrode portion (E2) described in FIGS. 11 to 13, the same reference numerals are given thereto, and redundant description thereof is omitted.

[0210] According to the embodiments of the present specification, the piezoelectric vibrating portion 353 is composed of a transparent, translucent, or opaque piezoelectric material as described in FIG. 10 and can be transparent, translucent, or opaque. For example, when the acoustic generating member 350 according to the embodiments of the present specification is attached or coupled to a vehicle interior material, the piezoelectric vibrating portion 353 is composed of a transparent, translucent, or opaque piezoelectric material and can be transparent, translucent, or opaque. For example, when the acoustic generating member 350 according to the embodiments of the present specification is attached or coupled to a vehicle glass window, the piezoelectric vibrating portion 351 is composed of a transparent or translucent piezoelectric material and can be transparent or translucent.

[0211] The acoustic generating member 350 according to other embodiments of the present specification may further include a first protective member 356 and a second protective member 357.

[0212] The second protective member 357 can be disposed on the first surface of the acoustic generating member 350. For example, the first protective member 356 covers the first electrode portions (E1) disposed on the respective first surfaces of the plurality of vibration generators 350A, 350B, 350C, and 350D, thereby commonly connecting to the respective first surfaces of the plurality of vibration generators 350A, 350B, 350C, and 350D or commonly supporting the respective first surfaces of the plurality of vibration generators 350A, 350B, 350C, and 350D. Thereby, the second protective member 357 can protect the respective first surfaces or the first electrode portions (E1) of the plurality of vibration generators 350A, 350B, 350C, and 350D.

[0213] The first protective member 356 according to the embodiment of the present specification can be disposed on the respective first surfaces of the plurality of vibration generators 350A, 350B, 350C, and 350D via the first adhesive layer 354. For example, the first protective member 356 can be directly disposed on the respective first surfaces of the plurality of vibration generators 350A, 350B, 350C, and 350D by a film lamination process mediated by the first adhesive layer 354. Therefore, the plurality of vibration generators 350A, 350B, 350C, and 350D can be integrated (or disposed) or tiled on the first protective member 356 so as to have a certain interval (D1, D2).

[0214] The second protective member 357 can be disposed on the second surface of the acoustic generating member 350. For example, the second protective member 357 covers the second electrode portions (E2) disposed on the respective second surfaces of the plurality of vibration generators 350A, 350B, 350C, and 350D, thereby commonly connecting to the respective second surfaces of the plurality of vibration generators 350A, 350B, 350C, and 350D or commonly supporting the respective second surfaces of the plurality of vibration generators 350A, 350B, 350C, and 350D. Thereby, the second protective member 357 can protect the respective second surfaces or the second electrode portions (E2) of the plurality of vibration generators 350A, 350B, 350C, and 350D.

[0215] The second protection member 357 according to the embodiment of this specification can be disposed on the second surface of each of the plurality of vibration generators 350A, 350B, 350C, 350D via the second adhesive layer 355. For example, the second protection member 357 can be directly disposed on the second surface of each of the plurality of vibration generators 350A, 350B, 350C, 350D by a film lamination process mediated by the second adhesive layer 355. Therefore, the plurality of vibration generators 350A, 350B, 350C, 350D can be integrated (or disposed) or tiled on the second protection member 357 so as to have a certain interval (D1, D2).

[0216] Each of the first and second protection members 356, 357 according to the embodiment of this specification can be made of a plastic material, a fiber material, or a wood material. Either the first protection member 356 or the second protection member 357 can be attached or coupled to the vehicle interior material or the vehicle glass window via an adhesive member. For example, either the first protection member 356 or the second protection member 357 can be attached or coupled to the vehicle interior material 130, the vehicle glass window 230, or the plates 360, 370, 380 via the adhesive member 361 as described in FIGS. 7 to 9.

[0217] The first adhesive layer 354 can be disposed on the first surface of each of the plurality of vibration generators 350A, 350B, 350C, 350D and between the plurality of vibration generators 350A, 350B, 350C, 350D. For example, the first adhesive layer 354 is formed on the back surface (or the inner surface) of the first protection member 356 facing the first surface of the sound generating member 350, is disposed on the first surface of each of the plurality of vibration generators 350A, 350B, 350C, 350D, and can be filled between the plurality of vibration generators 350A, 350B, 350C, 350D.

[0218] The second adhesive layer 355 can be disposed between the second surfaces of the plurality of vibration generators 350A, 350B, 350C, 350D and between the plurality of vibration generators 350A, 350B, 350C, 350D. For example, the second adhesive layer 355 is formed on the front surface (or inner surface) of the second protective member 357 facing the second surface of the acoustic generating member 350, is disposed on the second surface of each of the plurality of vibration generators 350A, 350B, 350C, 350D, and can be filled between the plurality of vibration generators 350A, 350B, 350C, 350D.

[0219] The first and second adhesive layers 354, 355 can be interconnected or joined between the plurality of vibration generators 350A, 350B, 350C, 350D. Thereby, each of the plurality of vibration generators 350A, 350B, 350C, 350D can be surrounded by the first and second adhesive layers 354, 355. For example, the first and second adhesive layers 354, 355 can completely surround the entire plurality of vibration generators 350A, 350B, 350C, 350D. For example, the plurality of vibration generators 350A, 350B, 350C, 350D can be built-in between the first and second adhesive layers 354, 355. For example, the first and second adhesive layers 354, 355 can be represented by a cover member or the like, and are not limited thereto. When the first and second adhesive layers 354, 355 are cover members, the first protective member 356 can be disposed on the first surface of the cover member, and the second protective member 357 can be disposed on the second surface of the cover member.

[0220] Each of the first and second adhesive layers 354, 355 according to the embodiments of the present specification can include an electrically insulating material that can be compressed and restored while having adhesiveness. For example, each of the first and second adhesive layers 354, 355 can include, but is not limited to, an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin. For example, each of the first and second adhesive layers 354, 355 can be configured to be transparent, translucent, or opaque depending on the location of the vehicle where the acoustic generating member 350 is disposed.

[0221] The acoustic generating member 350 according to another embodiment of the present specification may further include a first power supply line (PL1) disposed on the first protective member 356, a second power supply line (PL2) disposed on the second protective member 357, and a pad portion 358 electrically connected to the first power supply line (PL1) and the second power supply line (PL2).

[0222] The first power supply line (PL1) can be disposed on the back surface of the first protective member 356 facing the first surface of the acoustic generating member 350. The first power supply line (PL1) can be electrically connected to the first electrode portions (E1) of the plurality of vibration generators 350A, 350B, 350C, 350D. For example, the first power supply line (PL1) can be directly electrically connected to the first electrode portions (E1) of the plurality of vibration generators 350A, 350B, 350C, 350D. As an example, the first power supply line (PL1) can be electrically connected to the first electrode portions (E1) of the plurality of vibration generators 350A, 350B, 350C, 350D via an anisotropic conductive film. As another example, the first power supply line (PL1) can be electrically connected to the first electrode portions (E1) of the plurality of vibration generators 350A, 350B, 350C, 350D via a conductive substance (or particles) contained in the first adhesive layer 354.

[0223] According to an embodiment of the present specification, the first power supply line (PL1) can include first and second upper power lines (PL11, PL12) arranged along the second direction (Y direction). For example, the first upper power line (PL11) can be electrically connected to the first electrode portions (E1) of the first and third oscillators 350A and 350C (or the first module group) arranged in the first column parallel to the second direction (Y direction) among the plurality of oscillators 350A, 350B, 350C, and 350D. The second upper power line (PL12b) can be electrically connected to the first electrode portions (E1) of the second and fourth oscillators 350B and 350D (or the second module group) arranged in the second column parallel to the second direction (Y direction) among the plurality of oscillators 350A, 350B, 350C, and 350D.

[0224] The second power supply line (PL2) can be arranged on the front surface of the second protective member 357 facing the second surface of the acoustic generating member 350. The second power supply line (PL2) can be electrically connected to the second electrode portions (E2) of the plurality of oscillators 350A, 350B, 350C, and 350D. For example, the second power supply line (PL2) can be directly electrically connected to the second electrode portions (E2) of the plurality of oscillators 350A, 350B, 350C, and 350D. As an example, the second power supply line (PL2) can be electrically connected to the second electrode portions (E2) of the plurality of oscillators 350A, 350B, 350C, and 350D via an anisotropic conductive film. As another example, the second power supply line (PL2) can be electrically connected to the second electrode portions (E2) of the plurality of oscillators 350A, 350B, 350C, and 350D via a conductive substance (or particles) contained in the second adhesive layer 214.

[0225] According to an embodiment of the present specification, the second power supply line (PL2) may include first and second lower power supply lines (PL21, PL22) arranged along the second direction (Y direction). For example, the first lower power supply line (PL21) may be electrically connected to the second electrode portions (E2) of the first and third oscillators 350A and 350C (or the first module group) arranged in the first column parallel to the second direction (Y direction) among the plurality of oscillators 350A, 350B, 350C, and 350D. The second lower power supply line (PL22) may be electrically connected to the second electrode portions (E2) of the second and fourth oscillators 350B and 350D (or the second module group) arranged in the second column parallel to the second direction (Y direction) among the plurality of oscillators 350A, 350B, 350C, and 350D.

[0226] The pad portion 358 may be disposed on the acoustic generating member 350 so as to be electrically connected to at least one side (or one end) of the first power supply line (PL1) and the second power supply line (PL2). The pad portion 358 according to an embodiment of the present specification may include a first pad electrode electrically connected to one end of the first power supply line (PL1), and a second pad electrode electrically connected to one end of the second power supply line (PL2).

[0227] The first pad electrode may be commonly connected to one end of each of the first and second upper power supply lines (PL11, PL12) of the first power supply line (PL1). For example, one end of each of the first and second upper power supply lines (PL11, PL12) may branch from the first pad electrode.

[0228] The second pad electrode may be commonly connected to one end of each of the first and second lower power supply lines (PL21, PL22) of the second power supply line (PL2). For example, one end of each of the first and second lower power supply lines (PL21, PL22) may branch from the second pad electrode.

[0229] According to the embodiments of this specification, each of the first power supply line (PL1), the second power supply line (PL2), and the pad portion 358 can be made of a transparent conductive material, a translucent conductive material, or an opaque conductive material so as to be transparent, translucent, or opaque depending on the location of the vehicle where the acoustic generating member 350 is disposed.

[0230] The acoustic generating member 350 according to other embodiments of this specification can further include a flexible cable 359.

[0231] The flexible cable 359 can be electrically connected to the pad portion 358 disposed on the acoustic generating member 350 to supply one or more vibration drive signals (or acoustic signals) provided from the acoustic processing circuit to the acoustic generating member 350. The flexible cable 359 according to the embodiments of this specification can include a first terminal electrically connected to the first pad electrode of the pad portion 358 and a second terminal electrically connected to the second pad electrode of the pad portion 358. For example, the flexible cable 359 can be a flexible printed circuit cable or a flexible flat cable, but is not necessarily limited thereto.

[0232] The acoustic processing circuit can generate a vibration drive signal in an alternating current form including a first vibration drive signal and a second vibration drive signal based on an acoustic source. The first vibration drive signal can be either a positive polarity (+) vibration drive signal or a negative polarity (-) vibration drive signal, and the second vibration drive signal can be either a positive polarity (+) vibration drive signal or a negative polarity (-) vibration drive signal. For example, the first vibration drive signal can be supplied to the first electrode portions (E1) of the plurality of vibration generators 350A, 350B, 350C, 350D via the first terminal of the flexible cable 359, the first pad electrode of the pad portion 358, and the first power line (PL1). The second vibration drive signal can be supplied to the second electrode portions (E2) of the plurality of vibration generators 350A, 350B, 350C, 350D via the second terminal of the flexible cable 359, the second pad electrode of the pad portion 358, and the second power supply line (PL2).

[0233] According to the embodiments of this specification, the flexible cable 359 can be configured to be transparent, translucent, or opaque depending on the location of the vehicle where the acoustic generating member 350 is disposed.

[0234] Thus, the acoustic generating member 350 according to this embodiment includes a plurality of vibration generators 350A, 350B, 350C, 350D arranged (or tiled) at a certain interval (D1, D2) so as to be realized as a single vibrating body without being independently driven. By doing so, it can be driven as a large-area vibrating body by the single vibration of the plurality of vibration generators 350A, 350B, 350C, 350D. As a result, a large area of the vehicle interior material or the vehicle glass window can be vibrated, or it can vibrate with a large area by itself. Therefore, the acoustic characteristics and sound pressure characteristics in the reproduction band and the bass band of the sound output to one or more of the interior space and the exterior of the vehicle can be increased or improved respectively.

[0235] FIG. 16 is a diagram showing a display device having a vehicle acoustic generating device according to an embodiment of this specification, and FIG. 17 is a cross-sectional view taken along line II-II' shown in FIG. 16.

[0236] Referring to FIGS. 16 and 17, the display device 50 according to the embodiments of the present specification may be a display disposed in at least one of an instrument panel device and an infotainment device that can be classified as vehicle interior materials, or may be disposed in at least one of the back of a vehicle seat and a headrest, or may be an embedded display, but is not limited thereto. For example, the display device 50 disposed in the instrument panel device can provide the driver with various information such as operation-related information such as the running time, speed, fuel amount, and engine speed of the vehicle and the state information of the vehicle. For example, the display device 50 disposed in the infotainment device (or infotainment system) is connected to convenience systems of the vehicle, such as an audio system, an air conditioning system, and a multimedia system mounted inside the vehicle, and a navigation system, and displays control icons for controlling the corresponding vehicle convenience systems and navigation information provided from the navigation system, and can provide the vehicle occupants with sounds corresponding to audio signals provided from the audio system and / or the multimedia system.

[0237] The display device 50 according to the embodiments of the present specification may include a display panel 51 and at least one or more acoustic generators 30 disposed on the back (or rear surface) of the display panel 51.

[0238] The display panel 51 can display images, for example, electronic images or digital images. For example, the display panel 51 can output light to display an image.

[0239] According to the embodiments of this specification, the display panel 51 can be any form of display panel or curved display panel, such as 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, or an electronic wetting display panel, but is not limited thereto. According to other examples, the display panel 51 can be a flexible display panel. For example, the display panel 51 can be a transparent display panel or a flexible display panel. According to other examples, the display panel 51 can be a touch panel integrated display panel. For example, the touch panel integrated display panel can include a touch panel attached to the display panel or a touch electrode layer disposed inside the display panel.

[0240] The display device 50 according to the embodiments of this specification can further include a rear structure 53 disposed on the back surface of the display panel 51 and a panel connecting member 55 disposed between the display panel 51 and the rear structure 53.

[0241] The rear structure 53 can be disposed on the back surface of the display panel 51. For example, the rear structure 53 can cover the back surface of the display panel 51. For example, the rear structure 53 can cover all of the back surface of the display panel 51 with a gap space (GS) therebetween. For example, the rear structure 53 can be realized by any form of frame or plate-like structure disposed on the back surface of the display panel 51.

[0242] The rear structure 53 according to the embodiments of the present specification can additionally cover the side surface of the display panel 51. For example, the rear structure 53 can include a rear portion 53a that covers the rear surface of the display panel 51 with a gap space (GS) therebetween, and a side portion 53b that is connected to the tip of the rear portion 53a and covers the side surface of the display panel 51. Not limited thereto, the rear structure 53 can be a single integrated structure in which the rear portion 53a and the side portion 53b are integrally formed.

[0243] The display device 50 according to the embodiments of the present specification can further include a front member 57 that covers the front end (or edge) of the display panel 51. The front member 57 can have a frame shape having an opening that overlaps the display area of the display panel 51. For example, the front member 57 can be connected to the side portion 53b of the rear structure 53.

[0244] At least one or more acoustic generating devices 30 can be configured to use the display panel 51 as a vibrating plate to vibrate the display panel 51 and output sound (S) to one or more of the front (FD) of the display panel 51, the interior space (IS) of the vehicle, and the outside. For example, at least one or more acoustic generating devices 30 can be configured to directly vibrate the display panel 51 and output sound (S) to one or more of the front of the display panel 51, the interior space (IS) of the vehicle, and the outside. For example, at least one or more acoustic generating devices 30 can be configured to vibrate the display panel 51, and thus can be a vibration device or a vibration device of the display.

[0245] At least one or more acoustic generators 30 can be arranged on the back surface (or rear surface) of the display panel 51, or can include the connected acoustic generators 31, 33. As an example of the embodiments of this specification, the acoustic generators 31, 33 can be arranged on the back surface portion 53a of the back structure 53. For example, the acoustic generators 31, 33 can be supported or coupled to the back surface portion 53a of the back structure 53 and can be connected to the back surface (or rear surface) of the display panel 51. As another example, the acoustic generators 31, 33 can be separated from the back surface portion 53a of the back structure 53. For example, the acoustic generators 31, 33 can be separated from the back surface portion 53a of the back structure 53 and can be connected to the back surface (or rear surface) of the display panel 51.

[0246] The acoustic generators 31, 33 according to the embodiments of this specification can include the acoustic generators 31, 33 described in any one of FIGS. 1 to 9. For example, the acoustic generators 31, 33 according to this embodiment are substantially the same as the acoustic generators 31, 33 described in FIGS. 1, 2, and 4 to 8, except that the vehicle structure 110 is changed to the back structure 53 and the vehicle interior material 130 is changed to the display panel 51. Therefore, the same reference numerals are given to them, and duplicate descriptions thereof are omitted. For example, the acoustic generators 31, 33 according to this embodiment are substantially the same as the acoustic generators 31, 33 described in FIGS. 3 and 9, except that the vehicle glass window 230 is changed to the display panel 51. Therefore, the same reference numerals are given to them, and duplicate descriptions thereof are omitted. And the acoustic generating members 350 of the acoustic generators 31, 33 described in FIGS. 7 to 9 can be constituted by the acoustic generating members 350 described in FIGS. 10 to 15.

[0247] The display device 50 according to an embodiment of the present specification may include a plurality of acoustic generators 30A and 30B disposed on the back surface of the display panel 51. For example, the display device 50 may include a first acoustic generator 30A and a second acoustic generator 30B disposed in a first back region (or left region) and a second back region (or right region) of the display panel 51, respectively. At least one or more of the first and second acoustic generators 30A and 30B may include the acoustic generators 31 and 33 described in any one or more of FIGS. 1 to 9. For example, the display device 50 may include a third acoustic generator additionally disposed in a third back region (or middle region) between the first back region and the second back region of the display panel 51. The third acoustic generator may include the acoustic generators 31 and 33 described in any one or more of FIGS. 1 to 9.

[0248] The acoustic generators 31 and 33 according to an embodiment of the present specification can vibrate the display panel 51 in response to an external acoustic signal (or voice signal). For example, the acoustic generators 31 and 33 can directly vibrate the display panel 51 in response to an external acoustic signal (or voice signal). As an example, the acoustic generators 31 and 33 can vibrate by an acoustic signal synchronized with the video displayed on the display panel 51 to vibrate the display panel 51. As another example, the acoustic generators 31 and 33 can vibrate by a haptic feedback signal (or tactile feedback signal) synchronized with a user's touch on a touch panel (or touch sensor layer) disposed on or built into the display panel 51 to vibrate the display panel 51. Thereby, the display panel 51 can vibrate due to the vibration of the acoustic generators 31 and 33 to provide at least one or more of acoustic and haptic feedback to a user (or viewer).

[0249] FIG. 18 is a view showing a vehicle according to an embodiment of the present specification. FIG. 19 is a cross-sectional view showing a vehicle according to an embodiment of the present specification. FIG. 20 is a view showing an acoustic generator disposed around the driver's seat and the passenger seat in FIGS. 18 and 19. FIG. 21 is a view showing an acoustic generator disposed on the door and window glass in FIGS. 18 and 19. FIG. 22 is a view showing an acoustic generator disposed on the roof of the vehicle in FIGS. 18 and 19. FIG. 23 is a view showing an acoustic generator disposed on the roof and seats of the vehicle in FIGS. 18 and 19.

[0250] Referring to FIGS. 18 to 23, a vehicle 10 according to an embodiment of the present specification may include a vehicle interior material 130 and a first acoustic generator 30-1. The vehicle interior material 130 can cover the vehicle structure and be exposed to the interior space. The first acoustic generator 30-1 can be disposed between the vehicle structure and the vehicle interior material 130.

[0251] The first acoustic generator 30-1 may include at least one or more acoustic generators 31A to 31G disposed between at least one or more of a dashboard 130A, a filler 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 and the vehicle structure 110. For example, the first acoustic generator 30-1 includes at least one of the first to seventh acoustic generators 31A to 31G, whereby acoustic signals of one channel or more can be output.

[0252] Referring to FIGS. 18 to 20, the first acoustic generator 31A according to the embodiment of the present specification is disposed between the dash panel and the dashboard 130A of the main frame of the vehicle structure, and can be configured to vibrate the dashboard 130A and output sound due to the vibration of the dashboard 130A. For example, the first acoustic generator 31A can be configured to directly vibrate the dashboard 130A and output sound due to the vibration of the dashboard 130A. For example, since the first acoustic generator 31A includes the acoustic generators 31 and 33 described in FIGS. 1, 2, and 4 to 8, redundant description thereof will be omitted. For example, the first acoustic generator 31A can be a dashboard speaker or a first vehicle speaker.

[0253] According to the embodiment of the present specification, at least one or more of the dash panel and the dashboard 130A can include a first region corresponding to the driver's seat (DS), a second region corresponding to the passenger seat (PS), and a third region (or intermediate region) between the first region and the second region. At least one or more of the dash panel and the dashboard 130A can include a fourth region inclined with respect to the passenger seat (PS). According to the embodiment of the present specification, the first acoustic generator 31A can be arranged so as to vibrate at least one or more of the first to fourth regions of the dashboard 130A. For example, the first acoustic generator 31A can be arranged in each of the first and second regions of the dashboard 130A, or can be arranged in each of the first to fourth regions. For example, the first acoustic generator 31A can be arranged in each of the first and second regions of the dashboard 130A, or can be arranged in at least one or more of the first to fourth regions. For example, the first acoustic generator 31A can be configured to output sound in the range of 150 Hz to 20 kHz. For example, the first acoustic generators 31A configured to vibrate at least one or more of the first to fourth regions of the dashboard 130A can have the same or different acoustic output characteristics from each other. For example, the first acoustic generators 31A configured to vibrate each of the first to fourth regions of the dashboard 130A can have the same or different acoustic output characteristics from each other.

[0254] The second acoustic generator 31B according to the embodiment of the present specification can be arranged between the filler panel and the filler interior material 130B in the main frame of the vehicle structure to vibrate the filler interior material 130B and output the sound generated by the vibration of the filler interior material 130B. For example, the second acoustic generator 31B can directly vibrate the filler interior material 130B and output the sound generated by the vibration of the filler interior material 130B. For example, since the second acoustic generator 31B includes the acoustic generators 31 and 33 described in FIGS. 1, 2, and 4 to 8, redundant descriptions thereof are omitted. For example, the second acoustic generator 31B can be a filler speaker, a tweeter speaker, or a second vehicle speaker.

[0255] According to the embodiment of the present specification, the filler panel can include a first filler (or A-pillar) arranged on both sides of the front glass window, a second filler (or B-pillar) arranged on both sides of the center of the vehicle body, and a third filler (or C-pillar) arranged on both sides of the rear part of the vehicle body. The filler interior material 130B can include a first filler interior material 130B1 covering the first filler, a second filler interior material 130B2 covering the second filler, and a third filler interior material 130B3 covering the third filler. According to the embodiment of the present specification, the second acoustic generator 31B can be arranged between at least one of the first filler and the first filler interior material 130B1, the second filler and the second filler interior material 130B2, and the third filler and the third filler interior material 130B3 to vibrate at least one of the first to third filler interior materials 130B1, 130B2, 130B3. For example, the second acoustic generator 31B can be configured to output sound in the range of 2 kHz to 20 kHz, but is not limited thereto. For example, the second acoustic generator 31B can be configured to output sound in the range of 150 Hz to 20 kHz. For example, the second acoustic generator 31B configured to vibrate at least one of the first to third filler interior materials 130B1, 130B2, 130B3 can have the same or different acoustic output characteristics from each other.

[0256] Referring to FIGS. 19, 22, and 23, the third acoustic generator 31C according to the embodiment of the present specification is disposed between the roof panel and the roof interior material 130C of the main frame of the vehicle structure, and may be configured to vibrate the roof interior material 130C to output sound due to the vibration of the roof interior material 130C. For example, the third acoustic generator 31C can directly vibrate the roof interior material 130C to output sound due to the vibration of the roof interior material 130C. For example, since the third acoustic generator 31C includes the acoustic generators 31 and 33 described in FIGS. 1, 2, and 4 to 8, redundant description thereof will be omitted. For example, the third acoustic generator 31C may be a roof speaker or a third vehicle speaker.

[0257] According to the embodiments of this specification, at least one or more of the roof panel and the roof interior material 130C covering the roof panel can include a first region corresponding to the driver's seat (DS), a second region corresponding to the passenger seat (PS), a third region corresponding to the area between the driver's seat (DS) and the passenger seat (PS), a fourth region corresponding to the first rear seat (BS1) behind the driver's seat (DS), a fifth region corresponding to the second rear seat (BS2) behind the passenger seat (PS), a sixth region corresponding to the area between the first rear seat (BS1) and the second rear seat (BS2), and a seventh region between the third region and the sixth region. For example, the third sound generator 31C can be arranged so as to be able to vibrate at least one or more of the first to seventh regions of the roof interior material 130C. For example, the third sound generator 31C can be configured to output sound in the range of 150 Hz to 20 kHz. For example, the third sound generator 31C configured to vibrate at least one or more of the first to seventh regions of the roof interior material 130C can have the same or different sound output characteristics from each other. For example, the third sound generator 31C configured to vibrate each of the first to seventh regions of the roof interior material 130C can have the same or different sound output characteristics from each other. For example, at least one or more of the third sound generators 31C configured to vibrate at least one or more of the first to seventh regions of the roof interior material 130C can be configured to output sound in the range of 2 kHz to 20 kHz, and the rest can be configured to output sound in the range of 150 Hz to 20 kHz. For example, at least one or more of the third sound generators 31C configured to vibrate each of the first to seventh regions of the roof interior material 130C can be configured to output sound in the range of 2 kHz to 20 kHz, and the rest can be configured to output sound in the range of 150 Hz to 20 kHz.

[0258] Referring to FIGS. 18 to 21, the fourth acoustic generator 31D according to the embodiment of the present specification can be arranged between the door frame of the vehicle structure and the door trim 130D, and configured to vibrate the door trim 130D to output an acoustic sound due to the vibration of the door trim 130D. For example, the fourth acoustic generator 31D can directly vibrate the door trim 130D and output an acoustic sound due to the vibration of the door trim 130D. According to the embodiment of the present specification, since the fourth acoustic generator 31D includes the acoustic generators 31 and 33 described in FIGS. 1, 2, and 4 to 8, duplicate descriptions thereof are omitted. For example, the fourth acoustic generator 31D can be a door speaker or a fourth vehicle speaker.

[0259] According to the embodiment of the present specification, at least one of the door frame and the door trim 130D can include an upper region, a middle region, and a lower region with reference to the height direction (Z direction) of the vehicle 10. For example, the fourth acoustic generator 31D can be arranged in at least one of the upper region, the middle region, and the lower region between the door frame and the door trim 130D, so as to vibrate at least one of the upper region, the middle region, and the lower region of the door trim 130D.

[0260] According to the embodiment of the present specification, the upper region of the door trim 130D can have a relatively small radius of curvature. The fourth acoustic generator 31D for vibrating the upper region of the door trim 130D can include an acoustic generating member 350 having the flexible characteristics described in FIGS. 11 to 15.

[0261] According to the embodiments of this specification, the door frame can include a first door frame (or left front door frame), a second door frame (or right front door frame), a third door frame (or left rear door frame), and a fourth door frame (or right rear door frame). According to the embodiments of this specification, the door trim 130D can include a first door trim (or left front door trim) 130D1 covering the first door frame, a second door trim (or right front door trim) 130D2 covering the second door frame, a third door trim (or left rear door trim) 130D3 covering the third door frame, and a fourth door trim (or right rear door trim) 130D4 covering the fourth door frame. For example, the fourth sound generator 31D can be arranged in at least one of the upper region, middle region, and lower region between each of the first to fourth door frames and the first to fourth door trims 130D1 to 130D4 to vibrate at least one of the upper region, middle region, and lower region of each of the first to fourth door trims 130D1 to 130D4.

[0262] According to the embodiments of this specification, the fourth sound generator 31D configured to vibrate the upper region of each of the first to fourth door trims 130D1 to 130D4 can be configured to output sound in the range of 2 kHz to 20 kHz or can be configured to output sound in the range of 150 Hz to 20 kHz. For example, the fourth sound generator 31D configured to vibrate at least one of the upper regions of the first to fourth door trims 130D1 to 130D4 can be configured to output sound in the range of 2 kHz to 20 kHz or can be configured to output sound in the range of 150 Hz to 20 kHz.

[0263] According to an embodiment of the present specification, the fourth sound generator 31D configured to vibrate at least one or more middle regions or / and lower regions of the first to fourth door interior materials 130D1 to 130D4 may be configured to output sound of 150 Hz to 20 kHz. The fourth sound generator 31D configured to vibrate the middle region or / and lower region of each of the first to fourth door interior materials 130D1 to 130D4 may be configured to output sound of 150 Hz to 20 kHz. For example, the fourth sound generator 31D configured to vibrate at least one or more middle regions or / and lower regions of the first to fourth door interior materials 130D1 to 130D4 may be any one or more of a woofer, a mid-woofer, and a subwoofer. For example, the fourth sound generator 31D configured to vibrate the middle region and / or the lower region of each of the first to fourth door interior materials 130D1 to 130D4 may be one or more of a woofer, a mid-woofer, and a subwoofer.

[0264] The sounds output from the fourth sound generator 31D arranged in the first door interior material 130D1 and the fourth sound generator 31D arranged in the second door interior material 130D2 can be output together. For example, the sounds output from at least one of the fourth sound generator 31D arranged in the first door interior material 130D1 and the fourth sound generator 31D arranged in the second door interior material 130D2 can be output together. Also, the sounds output by the fourth sound generator 31D arranged in the third door interior material 130D3 and the fourth sound generator 31D arranged in the fourth door interior material 130D4 can be output together.

[0265] According to an embodiment of the present specification, the upper regions of each of the first to fourth door interior materials 130D1 to 130D4 may include a first upper region adjacent to the dashboard 130A, a second upper region adjacent to the rear seats (BS1, BS2, BS3), and a third upper region between the first and second upper regions. For example, the fourth sound generator 31D may be disposed in any one or more of the first to third upper regions of each of the first to fourth door interior materials 130D1 to 130D4. For example, the fourth sound generator 31D may be disposed in the first upper region of each of the first and second door interior materials 130D1, 130D2, and in any one or more of the second and third upper regions of each of the first and second door interior materials 130D1, 130D2. For example, the fourth sound generator 31D can be disposed in any one or more of the first to third upper regions of at least one of the first to fourth door interior materials 130D1 to 130D4. For example, the fourth sound generator 31D configured to vibrate one or more of the first upper regions of the first and second door interior materials 130D1, 130D2 can be configured to output sound of 2 kHz to 20 kHz, and the fourth sound generator 31D configured to vibrate one or more of the second and third upper regions of each of the first and second door interior materials 130D1, 130D2 can be configured to output sound of 2 kHz to 20 kHz or can be configured to output sound of 150 Hz to 20 kHz. For example, the fourth sound generator 31D configured to vibrate one or more of the second and third upper regions of at least one or more of the first and second door interior materials 130D1, 130D2 may be configured to output sound between 2 kHz and 20 kHz, or may be configured to output sound between 150 Hz and 20 kHz.

[0266] 18, 19, and 23, the fifth sound generator 31E according to the embodiment of the present specification may be configured to be disposed between the seat frame and the seat interior material 130E and vibrate the seat interior material 130E to output sound due to the vibration of the seat interior material 130E. For example, the fifth sound generator 31E may directly vibrate the seat interior material 130E to output sound due to the vibration of the seat interior material 130E. According to the embodiment of the present specification, the fifth sound generator 31E includes the sound generators 31 and 33 described in FIG. 1, FIG. 2, and FIG. 4 to FIG. 8, and therefore a duplicated description thereof will be omitted. For example, the fifth sound generator 31E may be a seat speaker, a headrest speaker, or a fifth vehicle speaker.

[0267] According to an embodiment of the present specification, the seat frame may include a first seat frame (or a driver's seat frame), a second seat frame (or a passenger seat frame), a third seat frame (or a first passenger seat frame), a fourth seat frame (or a second passenger seat frame), and a fifth seat frame (or a third passenger seat frame). According to an embodiment of the present specification, the seat interior material 130E may include a first seat interior material surrounding the first seat frame, a second seat interior material surrounding the second seat frame, a third seat interior material surrounding the third seat frame, a fourth seat interior material surrounding the fourth seat frame, and a fifth seat interior material surrounding the fifth seat frame.

[0268] According to an embodiment of the present specification, at least one of the first to fifth seat frames may include a floor frame of the seat, a seat back frame, and a headrest frame. The seat interior material 130E may include a floor interior material 130E1 of the seat surrounding the floor frame of the seat, a seat back interior material 130E2 surrounding the seat back frame, and a headrest interior material 130E3 surrounding the headrest frame. At least one of the floor interior material 130E1 of the seat, the seat back interior material 130E2, and the headrest interior material 130E3 may include a seat interior interior material and a seat exterior interior material. The seat interior interior material may include a foam layer. The seat exterior interior material may include a skin layer including fiber or leather. The seat exterior interior material may further include a base layer of a plastic material that supports the skin layer.

[0269] According to an embodiment of the present specification, the fifth acoustic generator 31E can be positioned at least one of between the seat back frame and the seat back interior material 130E2 and between the headrest frame and the headrest interior material 130E3, thereby vibrating at least one of the seat exterior interior material of the seat back interior material 130E2 and the seat exterior interior material of the headrest interior material 130E3.

[0270] According to an embodiment of the present specification, the fifth acoustic generator 31E arranged in at least one of the driver's seat (DS) and the passenger seat (PS) can be arranged in at least one of between the seat back frame and the seat back interior material 130E2 and between the headrest frame and the headrest interior material 130E3.

[0271] According to an embodiment of the present specification, the fifth sound generator 31E arranged in at least one of the first to third passenger seats (BS1, BS2, BS3) can be arranged between the headrest frame and the headrest interior material 130E3. For example, at least one of the first to third passenger seats (BS1, BS2, BS3) can include at least one fifth sound generator 31E arranged between the headrest frame and the headrest interior material 130E3.

[0272] According to an embodiment of the present specification, the fifth sound generator 31E, which vibrates at least one of the seat back interior materials 130E2 of the driver's seat (DS) and the passenger seat (PS), may be configured to output sound of 150 Hz to 20 kHz.

[0273] According to an embodiment of the present specification, the fifth sound generator 31E, which vibrates at least one of the headrest interior materials 130E3 of the driver's seat (DS), passenger seat (PS), and first to third passenger seats (BS1, BS2, BS3), can be configured to output sound from 2 kHz to 20 kHz, or can be configured to output sound from 150 Hz to 20 kHz.

[0274] 18 to 20, the sixth sound generator 31F according to the embodiment of the present specification may be configured to be disposed between the handle frame and the handle interior material 130F, vibrate the handle interior material 130F, and output sound due to the vibration of the handle interior material 130F. For example, the sixth sound generator 31F may directly vibrate the handle interior material 130F and output sound due to the vibration of the handle interior material 130F. According to the embodiment of the present specification, the sixth sound generator 31F includes the sound generators 31 and 33 described in FIG. 1, FIG. 2, and FIG. 4 to FIG. 8, and therefore a duplicated description thereof will be omitted. For example, the sixth sound generator 31F may be a handle speaker, a steering speaker, or a sixth vehicle speaker.

[0275] According to an embodiment of the present specification, the sixth sound generator 31F can vibrate the steering wheel interior material 130F to provide the driver with sound due to the vibration of the steering wheel interior material 130F. For example, the sixth sound generator 31F can directly vibrate the steering wheel interior material 130F to provide the driver with sound due to the vibration of the steering wheel interior material 130F. The sound output by the sixth sound generator 31F can be the same as or different from the sound output by each of the first to fifth sound generators 31A to 31E. For example, the sound output by the sixth sound generator 31F can be the same as or different from the sound output by at least one of the first to fifth sound generators 31A to 31E. As an embodiment of the present specification, the sixth sound generator 31F can output sound to be provided only to the driver. As another embodiment, the sound output by the sixth sound generator 31F and the sound output by each of the first to fifth sound generators 31A to 31E can be output in combination with each other. For example, the sound output by the sixth sound generator 31F and the sound output by at least one of the first to fifth sound generators 31A to 31E can be output in combination with each other.

[0276] 18 and 19, the seventh sound generator 31G may be configured to be disposed between a floor panel of a main frame of a vehicle structure and the floor interior material 130G, and to vibrate the floor interior material 130G to output sound due to the vibration of the floor interior material 130G. For example, the seventh sound generator 31G may directly vibrate the floor interior material 130G to output sound due to the vibration of the floor interior material 130G.

[0277] The seventh sound generator 31G can be disposed between a floor panel disposed between the front seats (DS, PS) and the third passenger seat (BS3) and the floor interior material 130G. For example, the seventh sound generator 31G includes the sound generators 31 and 33 described in Figs. 1, 2, and 4 to 8, and therefore a duplicated description thereof will be omitted. For example, the seventh sound generator 31G can be configured to output sound of 150 Hz to 20 kHz. For example, the seventh sound generator 31G can be a floor speaker, a floor speaker, an under-speaker, or a seventh vehicle speaker.

[0278] 18 to 22, the vehicle 10 according to the embodiment of the present specification may further include a second sound generating device 30-2 disposed in the vehicle interior material 130 exposed to the interior space. For example, the vehicle 10 according to the embodiment of the present specification may include only the second sound generating device 30-2 instead of the first sound generating device 30-1, or may include both the first sound generating device 30-1 and the second sound generating device 30-2.

[0279] According to an embodiment of the present specification, the vehicle interior material 130 may further include a rearview mirror 130H, an overhead console 130I, a rear package interior material 130J, a glove box 130K, and a sun visor 130L.

[0280] The second sound generating device 30-2 may include at least one or more sound generators 31H-31L arranged in at least one of the rearview mirror 130H, the overhead console 130I, the rear package interior material 130J, the glove box 130K, and the sun visor 130L. For example, the second sound generating device 30-2 may include at least one or more of the eighth to twelfth sound generators 31H-31L, thereby being able to output sound of one or more channels.

[0281] 18 to 22, the eighth sound generator 31H may be configured to be disposed on the rear-view mirror 130H and vibrate the rear-view mirror 130H to output sound due to the vibration of the rear-view mirror 130H. For example, the eighth sound generator 31H may be configured to directly vibrate the rear-view mirror 130H to output sound due to the vibration of the rear-view mirror 130H.

[0282] The eighth sound generator 31H can be disposed between the mirror housing connected to the vehicle body structure and the rearview mirror 130H supported by the mirror housing. According to the embodiment of the present specification, the eighth sound generator 31H includes the sound generators 31 and 33 described in FIG. 1 and FIG. 3 to FIG. 9, so that the repeated description thereof will be omitted. For example, the seventh sound generator 31G can be configured to output sound of 150 Hz to 20 kHz. For example, the eighth sound generator 31H can be a mirror speaker or an eighth vehicle speaker.

[0283] 19, 20, and 22, the ninth sound generator 31I may be disposed in the overhead console 130I and configured to vibrate a console cover of the overhead console 130I to output sound due to vibration of the interior material (or the console cover) of the overhead console 130I. For example, the ninth sound generator 31I may be configured to directly vibrate the console cover of the overhead console 130I to output sound due to vibration of the interior material (or the console cover) of the overhead console 130I.

[0284] According to one example, the overhead console 130I may include a console box embedded in a roof panel, a lighting fixture disposed in the console box, and a console cover covering the lighting fixture and the console box.

[0285] The ninth sound generator 31I is disposed between the console box and the console cover of the overhead console 130I, and can vibrate the console cover. For example, the ninth sound generator 31I is disposed between the console box and the console cover of the overhead console 130I, and can directly vibrate the console cover. According to the embodiment of the present specification, the ninth sound generator 31I includes the sound generators 31 and 33 described in FIG. 1 and FIG. 4 to FIG. 9, so that a duplicated description thereof will be omitted. For example, the ninth sound generator 31I can be configured to output sound of 150 Hz to 20 kHz. For example, the ninth sound generator 31I can be a console speaker, a lighting speaker, or a ninth vehicle speaker.

[0286] For example, the vehicle 10 may further include a central lighting box disposed in a central region of the roof interior material 130C, a central lighting fixture disposed in the central lighting box, and a central lighting cover covering the central lighting fixture. In this case, the ninth sound generator 31I may be additionally disposed between the central lighting box of the central lighting fixture and the central lighting cover to additionally vibrate the central lighting cover.

[0287] 18 and 19, the tenth sound generator 31J can be arranged in the rear package interior material 130J and configured to vibrate the rear package interior material 130J to output sound due to the vibration of the rear package interior material 130J. For example, the tenth sound generator 31J can directly vibrate the rear package interior material 130J to output sound due to the vibration of the rear package interior material 130J.

[0288] The rear package interior material 130J can be disposed behind the first to third passenger seats (BS1, BS2, BS3). For example, a part of the rear package interior material 130J can be disposed under the rear glass window 230C.

[0289] The tenth sound generator 31J is arranged on the back surface of the rear package interior material 130J and can vibrate the rear package interior material 130J. For example, the tenth sound generator 31J can directly vibrate the rear package interior material 130J. According to the embodiments of this specification, since the tenth sound generator 31J includes the sound generators 31 and 33 described in FIGS. 1, 2, and 4 to 8, duplicate descriptions thereof are omitted. For example, the tenth sound generator 31J can be a rear speaker or a tenth vehicle speaker.

[0290] According to the embodiments of this specification, the rear package interior material 130J can include a first region corresponding to the rear of the first passenger seat (BS1), a second region corresponding to the rear of the second passenger seat (BS2), and a third region corresponding to the rear of the third passenger seat (BS3). According to the embodiments of this specification, the tenth sound generator 31J can be arranged so as to be able to vibrate at least one or more of the first to third regions of the rear package interior material 130J. For example, the tenth sound generator 31J can be arranged in each of the first and second regions of the rear package interior material 130J, or can be arranged in each of the first to third regions. For example, the tenth sound generator 31J can be arranged in at least one or more of the first and second regions of the rear package interior material 130J, or can be arranged in at least one or more of the first to third regions. For example, the tenth sound generator 31J can be configured to output sounds of 150 Hz to 20 kHz. For example, the tenth sound generator 31J configured to vibrate each of the first to third regions of the rear package interior material 130J can have the same or different sound output characteristics from each other. For example, the tenth sound generator 31J configured to vibrate at least one or more of the first to third regions of the rear package interior material 130J can have the same or different sound output characteristics from each other.

[0291] Referring to FIGS. 18 to 20, the 11th acoustic generator 31K can be arranged in the glove box 130K to vibrate the glove box 130K and output sound due to the vibration of the glove box 130K. For example, the 11th acoustic generator 31K can directly vibrate the glove box 130K and output sound due to the vibration of the glove box 130K.

[0292] The glove box 130K can be arranged on the dashboard 130A corresponding to the front of the passenger seat (PS).

[0293] The 11th acoustic generator 31K can be arranged on the inner surface of the glove box 130K to vibrate the glove box 130K. For example, the 11th acoustic generator 31K can directly vibrate the glove box 130K. According to the embodiments of this specification, since the 11th acoustic generator 31K includes the acoustic generators 31 and 33 described in FIGS. 1, 2, and 4 to 8, duplicate descriptions thereof are omitted. For example, the 11th acoustic generator 31K can be configured to output sound of 150 Hz to 20 kHz, or can be one or more of a woofer, a mid-woofer, and a sub-woofer. For example, the 11th acoustic generator 31K can be a glove box speaker or an 11th vehicle speaker.

[0294] Referring to FIG. 20, the 12th acoustic generator 31L can be arranged in the sun visor 130L to vibrate the sun visor 130L and output sound due to the vibration of the sun visor 130L. For example, the 12th acoustic generator 31L can directly vibrate the sun visor 130L and output sound due to the vibration of the sun visor 130L.

[0295] The sun visor 130L can include a first sun visor 130L1 corresponding to the driver's seat (DS) and a second sun visor 130L2 corresponding to the passenger seat (PS).

[0296] The 12th acoustic generator 31L can be arranged on at least one of the first supervisor 130L1 and the second supervisor 130L2 to vibrate at least one of the first supervisor 130L1 and the second supervisor 130L2. For example, the 12th acoustic generator 31L can directly vibrate at least one of the first supervisor 130L1 and the second supervisor 130L2. According to the embodiments of this specification, since the 12th acoustic generator 31L includes the acoustic generators 31 and 33 described in FIGS. 1, 2, and 4 to 8, duplicate descriptions thereof are omitted. For example, the 12th acoustic generator 31L can be configured to output sound in the range of 150 Hz to 20 kHz. For example, the 12th acoustic generator 31L can be a supervisor speaker or the 12th vehicle speaker.

[0297] For example, at least one of the first supervisor 130L1 and the second supervisor 130L2 can further include a supervisor mirror. In this case, the 12th acoustic generator 31L can be configured to vibrate at least one of the supervisor mirrors of the first supervisor 130L1 and the second supervisor 130L2. The 12th acoustic generator 31L can directly vibrate at least one of the supervisor mirrors of the first supervisor 130L1 and the second supervisor 130L2. Since the 12th acoustic generator 31L that vibrates the supervisor mirror includes the acoustic generators 31 and 33 described in FIGS. 1, 3, and 4 to 9, duplicate descriptions thereof are omitted.

[0298] Referring to FIGS. 18 to 22, the vehicle 10 according to the embodiments of this specification can further include a third acoustic generating device 30-3 arranged on the vehicle glass window 230. For example, the vehicle 10 according to the embodiments of this specification can include the third acoustic generating device 30-3 instead of at least one of the first and second acoustic generating devices 30-1 and 30-2, or can include all of the first to third acoustic generating devices 30-1, 30-2, and 30-3.

[0299] The third sound generating device 30-3 can include at least one or more sound generators 31M to 31P arranged on the vehicle glass window 230. For example, the third sound generating device 30-3 includes at least one or more of the thirteenth to sixteenth sound generators 31M to 31P, whereby sound of one or more channels can be output. For example, the third sound generating device 30-3 can be a transparent sound generating device, a transparent speaker, or a transparent vehicle speaker.

[0300] At least one or more of the thirteenth to sixteenth sound generators 31M to 31P according to the embodiments of the present specification include the transparent or translucent sound generator 33 described in FIGS. 3 and 9, and thus redundant description thereof is omitted. For example, when at least one or more of the thirteenth to sixteenth sound generators 31M to 31P include the sound generator 33 described in FIG. 3, at least one or more of the thirteenth to sixteenth sound generators 31M to 31P can vibrate the vehicle glass window 230 and output sound due to the vibration of the vehicle glass window 230. For example, at least one or more of the thirteenth to sixteenth sound generators 31M to 31P can directly vibrate the vehicle glass window 230 and output sound due to the vibration of the vehicle glass window 230. For example, when at least one or more of the thirteenth to sixteenth sound generators 31M to 31P include the sound generator 33 described in FIG. 9, at least one or more of the thirteenth to sixteenth sound generators 31M to 31P can output sound by its own vibration.

[0301] According to the embodiments of this specification, the vehicle glass window 230 can include a front glass window 230A, a side glass window 230B, and a rear glass window 230C. According to the embodiments of this specification, the vehicle glass window 230 can further include a roof glass window 230D. For example, when the vehicle 10 includes the roof glass window 230D, a part of the area of the aforementioned roof frame and the roof interior material 130C can be replaced with the roof glass window 230D. For example, when the vehicle 10 includes the roof glass window 230D, the third sound generator 31C can be configured to vibrate an end portion (or edge portion) of the roof interior material 130C surrounding the roof glass window 230D.

[0302] Referring to FIGS. 18 to 20, the thirteenth sound generator 31M according to the embodiments of this specification can be arranged on the front glass window 230A to output sound (S) by its own vibration or to vibrate the front glass window 230A to output sound due to the vibration of the front glass window 230A. For example, the thirteenth sound generator 31M can directly vibrate the front glass window 230A to output sound due to the vibration of the front glass window 230A.

[0303] According to the embodiments of the present specification, the front glass window 230A can include a first region corresponding to the driver's seat (DS), a second region corresponding to the passenger seat (PS), and a third region (or intermediate region) between the first region and the second region. For example, the 13th acoustic generator 31M can be disposed in at least one or more of the first to third regions of the front glass window 230A. For example, the 13th acoustic generator 31M can be disposed in each of the first and second regions of the front glass window 230A, or can be disposed in each of the first to third regions. For example, the 13th acoustic generator 31M can be disposed in at least one or more of the first and second regions of the front glass window 230A, or can be disposed in at least one or more of the first to third regions. For example, the 13th acoustic generators 31M disposed in each of the first to third regions of the front glass window 230A can have the same or different acoustic output characteristics from each other. For example, the 13th acoustic generators 31M disposed in one or more of the first to third regions of the front glass window 230A can have the same or different acoustic output characteristics from each other. For example, the 13th acoustic generator 31M can be configured to output an acoustic wave of 150 Hz to 20 kHz. For example, the 13th acoustic generator 31M can be a front window speaker or the 13th vehicle speaker.

[0304] Referring to FIGS. 19 to 21 and FIG. 23, the 14th acoustic generator 31N according to the embodiments of the present specification can be disposed on the side glass window 230B to output an acoustic wave (S) by its own vibration, or can be configured to vibrate the side glass window 230B to output an acoustic wave due to the vibration of the side glass window 230B. For example, the 14th acoustic generator 31N can directly vibrate the side glass window 230B to output an acoustic wave due to the vibration of the side glass window 230B.

[0305] According to the embodiments of the present specification, the side window glass 230B can include a first side glass window (or left front window) 230B1, a second side glass window (or right front window) 230B2, a third side glass window (or left rear window) 230B3, and a fourth side glass window (or right rear window) 230B4.

[0306] According to the embodiments of this specification, the 14th acoustic generator 31N can be arranged on at least one or more of the first to fourth side glass windows 230B1 to 230B4. For example, at least one or more of the first to fourth side glass windows 230B1 to 230B4 can include at least one or more 14th acoustic generators 31N.

[0307] For example, the 14th acoustic generator 31N is arranged on at least one or more of the glass windows 230B1 to 230B4 on the first to fourth sides, and can output sound (S) by its own vibration, or vibrate the corresponding side glass windows 230B1 to 230B4 to output sound. For example, the 14th acoustic generator 31N can directly vibrate the side glass windows 230B1 to 230B4 to output sound. For example, the 14th acoustic generator 31N can be configured to output sound in the range of 150 Hz to 20 kHz. For example, the 14th acoustic generators 31N arranged on at least one or more of the first to fourth side glass windows 230B1 to 230B4 can have the same or different sound output characteristics from each other. For example, the 14th acoustic generator 31N can be configured to output sound in the range of 150 Hz to 20 kHz. For example, the 14th acoustic generator 31N can be a side window speaker or a 14th vehicle speaker.

[0308] Referring to FIG. 18, the 15th acoustic generator 31O according to the embodiments of this specification can be arranged on the rear glass window 230C, and can output sound (S) by its own vibration, or vibrate the rear glass window 230C to output sound due to the vibration of the rear glass window 230C. For example, the 15th acoustic generator 31O can directly vibrate the rear glass window 230C to output sound due to the vibration of the rear glass window 230C.

[0309] According to the embodiments of the present specification, the rear glass window 230C can include a first region corresponding to the rear of the first passenger seat (BS1), a second region corresponding to the rear of the second passenger seat (BS2), and a third region corresponding to the rear of the third passenger seat (BS3). According to the embodiments of the present specification, the 15th acoustic generator 31O can be disposed in each of the first to third regions of the rear glass window 230C. For example, the 15th acoustic generator 31O can be disposed in at least one or more of the first to third regions of the rear glass window 230C. For example, the 15th acoustic generator 31O can be disposed in each of the first and second regions of the rear glass window 230C, or can be disposed in each of the first to third regions. For example, the 15th acoustic generator 31O can be disposed in at least one or more of the first and second regions of the rear glass window 230C, or can be disposed in at least one or more of the first to third regions. For example, the 15th acoustic generator 31O can be configured to output an acoustic wave of 150 Hz to 20 kHz. For example, the 15th acoustic generators 31O disposed in each of the first to third regions of the rear glass window 230C can have the same or different acoustic output characteristics from each other. For example, the 15th acoustic generators 31O disposed in at least one or more of the first to third regions of the rear glass window 230C can have the same or different acoustic output characteristics from each other. For example, the 15th acoustic generators 31O disposed in at least one or more of the first and second regions of the rear glass window 230C can be configured to output an acoustic wave of 150 Hz to 20 kHz, or can be any one or more of a woofer, a mid-woofer, and a sub-woofer. For example, the 15th acoustic generator 31O can be a rear window speaker or a 15th vehicle speaker.

[0310] Referring to FIG. 22, the 16th acoustic generator 31P according to the embodiment of the present specification can be arranged on the roof glass window 230D to output sound (S) by its own vibration or vibrate the roof glass window 230D to output sound due to the vibration of the roof glass window 230D. For example, the 16th acoustic generator 31P can directly vibrate the roof glass window 230D and output sound due to the vibration of the roof glass window 230D.

[0311] The roof glass window 230D according to the embodiment of the present specification can be arranged on the front seats (DS, PS) of the vehicle 10. For example, the 16th acoustic generator 31P can be arranged in the middle region of the roof glass window 230D. For example, the 16th acoustic generator 31P can be configured to output sound in the range of 150 Hz to 20 kHz. For example, the 16th acoustic generator 31P can be a roof window speaker or the 16th vehicle speaker.

[0312] The roof glass window 230D according to another embodiment can be arranged on the front seats (DS, PS) of the vehicle 10 or on the front seats (DS, PS) and the rear seats (BS1, BS2, BS3). For example, the roof glass window 230D can include a first region corresponding to the front seats (DS, PS) and a second region corresponding to the rear seats (BS1, BS2, BS3). Further, the roof glass window 230D can include a third region between the first region and the second region. For example, the 16th acoustic generator 31P can be arranged in at least one of the first and second regions of the roof glass window 230D or in at least one of the first to third regions of the roof glass window 230D. For example, the 16th acoustic generator 31P can be configured to output sound in the range of 150 Hz to 20 kHz. For example, the 16th acoustic generators 31P arranged in at least one of the first to third regions of the roof glass window 230D can have the same or different acoustic output characteristics from each other.

[0313] Referring to FIGS. 18 to 20, the vehicle 10 according to the embodiments of the present specification may further include a woofer speaker (WS) disposed in at least one of the dashboard 130A, the door frame, and the rear package interior material 130J.

[0314] The woofer speaker (WS) according to the embodiments of the present specification may be one or more of a woofer, a mid-woofer, and a sub-woofer. For example, the woofer speaker (WS) may be a speaker that outputs sound in the range of 60 Hz to 150 Hz. Therefore, by outputting sound in the range of 60 Hz to 150 Hz, the woofer speaker (WS) can improve the low-frequency band characteristics of the sound output to the indoor space.

[0315] According to one example, the woofer speaker (WS) can be disposed in at least one of the first and second regions of the dashboard 130A. According to one example, the woofer speaker (WS) can be disposed in each of the first to fourth door frames of the door interior material 130D and exposed in the lower regions of the first to fourth door interior materials 130D1 to 130D4 of the door interior material 130D. For example, the woofer speaker (WS) can be disposed in at least one of the first to fourth door frames of the door interior material 130D and exposed in at least one of the lower regions of the first to fourth door interior materials 130D1 to 130D4 of the door interior material 130D. According to one example, the woofer speaker (WS) can be disposed in at least one of the first and second regions of the rear package interior material 130J. For example, the fourth sound generator 31D disposed in the lower region of each of the first to fourth door interior materials 130D1 to 130D4 can be replaced with the woofer speaker (WS). For example, the fourth sound generator 31D disposed in at least one of the lower regions of the first to fourth door interior materials 130D1 to 130D4 can be replaced with the woofer speaker (WS).

[0316] Referring to FIGS. 18 to 20, the vehicle 10 according to the embodiment of the present specification may further include an instrument panel device 150 and an infotainment device 170.

[0317] The instrument panel device 150 according to the embodiment of the present specification can be arranged in the first region of the dashboard 130A so as to face the driver's seat (DS). The instrument panel device 150 may include a display (or a first display) 151 arranged in the first region of the dashboard 130A so as to face the driver's seat (DS).

[0318] Since the first display 151 includes the display device 50 described with reference to FIGS. 16 and 17, the same reference numerals are assigned thereto, and redundant description thereof is omitted. For example, the instrument panel device 150 can output sound generated by vibration of the display panel due to vibration of at least one or more acoustic generators 30 included in the first display 151 to the driver's seat (DS). For example, the acoustic generator 30 arranged on the first display 151 of the instrument panel device 150 can be configured to output sound in the range of 150 Hz to 20 kHz.

[0319] The infotainment device 170 can be arranged in the third region of the dashboard 130A.

[0320] The infotainment device 170 according to the embodiment of the present specification can be fixed upright on the third region of the dashboard 130A.

[0321] The infotainment device 170 according to another embodiment can be installed in the third region of the dashboard 130A so as to be movable up and down. For example, the infotainment device 170 can be housed or accommodated inside the dashboard 130A by turning off the vehicle power or by an operation of a vehicle occupant, and can protrude onto the dashboard 130A by turning on the vehicle power or by an operation of a vehicle occupant.

[0322] The infotainment device 170 according to an embodiment of the present specification may include a display (or a second display) 171 disposed in the third region of the dashboard 130A and a display lifting device.

[0323] Since the second display 171 includes the display device 50 described with reference to FIGS. 16 and 17, the same reference numerals are assigned thereto, and redundant descriptions thereof are omitted. For example, the infotainment device 170 may output sound generated by vibration of the display panel due to vibration of at least one or more sound generating devices 30 included in the second display 171 to the driver's seat (DS). For example, the sound generating device 30 disposed on the second display 171 of the infotainment device 170 may be configured to output sound in the range of 150 Hz to 20 kHz.

[0324] The display lifting device may be disposed inside the third region of the dashboard 130A to support the second display 171 so as to be lifted and lowered. For example, the display lifting device may raise the second display 171 to protrude above the dashboard 130A when the vehicle power is turned on or by an operation of a vehicle occupant. Then, the display lifting device may lower the second display 171 to be housed or accommodated inside the dashboard 130A when the vehicle power is turned off or by an operation of a vehicle occupant.

[0325] As described above, the vehicle 10 according to the embodiments of the present specification outputs sound to one or more of the interior space and the outside through at least one of the first sound generating device 30-1 disposed between the vehicle structure and the vehicle interior material 130, the second sound generating device 30-2 disposed on the vehicle interior material 130 exposed to the interior space, and the third sound generating device 30-3 disposed on the vehicle glass window 230. Thus, the vehicle interior material can be used as an acoustic vibration plate to output sound, and multi-channel surround stereo sound can be output. Further, the vehicle 10 according to the embodiments of the present specification can output sound using at least one display panel of at least one of the display 151 and 171 of at least one of the instrument panel device 150 and the infotainment device 170 as an acoustic vibration plate, and can output more realistic multi-channel surround stereo sound through each of the first to third sound generating devices 30-1, 30-2, 30-3 and the instrument panel device 150 and the infotainment device 170.

[0326] The vehicle sound generating device according to the present specification can be described as follows.

[0327] The vehicle sound generating device according to some embodiments of the present specification includes a sound generator covered by a vehicle interior material, and the sound generator can be configured to vibrate the vehicle interior material.

[0328] According to some embodiments of the present specification, the sound generator is configured to output sound and includes a sound generating member, and the sound generating member can include a base frame, a bobbin disposed on the base frame and configured to be connected to the vehicle interior material, and a coil wound around the bobbin.

[0329] According to some embodiments of the present specification, the sound generator further includes a support member configured to be supported by the vehicle structure and support the base frame of the sound generating member, and a connecting member disposed on the support member so as to surround the sound generating member, and the connecting member can be configured to be connected to the vehicle interior material.

[0330] According to some embodiments of the present specification, the support member may further include a hole for accommodating a part of the base frame.

[0331] According to some embodiments of the present specification, the acoustic generator includes an acoustic generating member having a piezoelectric vibrating portion, and the acoustic generating member may be configured to be connected to the vehicle interior material via an adhesive member.

[0332] According to some embodiments of the present specification, the acoustic generator includes a first plate, an acoustic generating member configured to be connected to the first plate and having a piezoelectric vibrating portion, a second plate disposed on the back surface of the acoustic generating member, and a connecting member surrounding the acoustic generating member and disposed between the first plate and the second plate, and the first plate may be configured to be connected to the vehicle interior material.

[0333] According to some embodiments of the present specification, the acoustic generator includes a plate, an acoustic generating member configured to be connected to the plate and having a piezoelectric vibrating portion, and a connecting member disposed on the plate so as to surround the acoustic generating member, and the connecting member may be configured to be connected to the vehicle interior material.

[0334] The vehicle acoustic generator according to some embodiments of the present specification further includes a transparent acoustic generator configured to be disposed on a vehicle glass window, the transparent acoustic generator includes an acoustic generating member having a piezoelectric vibrating portion, and the acoustic generating member may be configured to be connected to the vehicle glass window via an adhesive member.

[0335] The vehicle acoustic generator according to some embodiments of the present specification further includes a transparent acoustic generator configured to be disposed on a vehicle glass window, the transparent acoustic generator includes a plate, an acoustic generating member configured to be connected to the plate and having a piezoelectric vibrating portion, and a connecting member disposed on the plate so as to surround the acoustic generating member, and the connecting member may be configured to be connected to the vehicle glass window.

[0336] According to some embodiments of the present specification, it may include a plurality of inorganic material portions having piezoelectric characteristics of the piezoelectric vibrating portion, and an organic material portion configured to be connected between the plurality of inorganic material portions.

[0337] According to some embodiments of the present specification, the piezoelectric vibrating portion includes a plurality of vibration generators spaced apart from each other, and the acoustic generator may include a first protection member disposed on the first surface of the piezoelectric vibrating portion and a second protection member disposed on the second surface opposite to the first surface of the piezoelectric vibrating portion.

[0338] According to some embodiments of the present specification, each of the plurality of vibration generators may include a plurality of inorganic material portions having piezoelectric characteristics, an organic material portion configured to be connected between the plurality of inorganic material portions, a first electrode portion interposed between each of the plurality of inorganic material portions and the organic material portion and the first protection member, and a second electrode portion interposed between each of the plurality of inorganic material portions and the organic material portion and the second protection member.

[0339] According to some embodiments of the present specification, the vibration generators may be configured to be arranged in an i×j form (i is a natural number of 2 or more, and j is the same as i or a natural number of 1 or more) on the same plane.

[0340] According to some embodiments of the present specification, the width of each of the organic material portions may gradually decrease from the middle portion to both end portions of the piezoelectric vibrating portion.

[0341] According to some embodiments of the present specification, the organic material portion may have a lower modulus and viscoelasticity than the inorganic material portion.

[0342] According to some embodiments of the present specification, the size of the piezoelectric vibrating portion may be configured to be adjusted by one or more of piezoelectric characteristics and flexible characteristics.

[0343] A vehicle including the vehicle acoustic generator according to the present specification can be described as follows.

[0344] A vehicle including an acoustic generating device for a vehicle according to some embodiments of the present specification includes an interior trim material that covers a vehicle structure and at least one acoustic generating device disposed in the interior trim material, and the interior trim material can be configured to vibrate by the vibration of the acoustic generating device and output sound.

[0345] According to some embodiments of the present specification, the interior trim material of the vehicle can be made of any one or more of plastic, fiber, leather, wood, cloth, metal, and glass.

[0346] According to some embodiments of the present specification, the acoustic generating device can include at least one of a first acoustic generating device disposed between the vehicle structure and the interior trim material and a second acoustic generating device disposed in the interior trim material.

[0347] According to some embodiments of the present specification, the interior trim material of the vehicle includes at least one of a dashboard, a filler interior trim material, a roof interior trim material, a door interior trim material, a seat interior trim material, a handle interior trim material, and a floor interior trim material, and the first acoustic generating device can vibrate at least one of the dashboard, a filler interior trim material, a roof interior trim material, a door interior trim material, a seat interior trim material, a handle interior trim material, and a floor interior trim material. According to some embodiments of the present specification, the interior trim material of the vehicle includes at least one of a dashboard, a filler interior trim material, a roof interior trim material, a door interior trim material, a seat interior trim material, a handle interior trim material, and a floor interior trim material, and the first acoustic generating device can vibrate the interior trim material of the vehicle.

[0348] According to some embodiments of this specification, the vehicle interior material includes at least one or more of a rearview mirror, an overhead console, a rear package interior material, a glove box, and a sun visor, and the second sound generating device can vibrate at least one or more of a rearview mirror, an overhead console, a rear package interior material, a glove box, and a sun visor. According to some embodiments of this specification, the vehicle interior material includes at least one or more of a rearview mirror, an overhead console, a rear package interior material, a glove box, and a sun visor, and the second sound generating device can vibrate the vehicle interior material.

[0349] A vehicle according to some embodiments of this specification may further include a vehicle glass window and a transparent sound generating device disposed on the vehicle glass window.

[0350] According to some embodiments of this specification, the vehicle glass window includes a front glass window and a side glass window, and further includes at least one or more of a rear glass window and a roof glass window, and the transparent sound generating device may be configured to be disposed on at least one or more of the front glass window, the side glass window, the rear glass window, and the roof glass window. According to some embodiments of this specification, the vehicle glass window includes a front glass window and a side glass window, and further includes at least one or more of a rear glass window and a roof glass window, and the transparent sound generating device may be configured to be disposed on the vehicle glass window.

[0351] According to some embodiments of this specification, at least one or more of the first sound generating device and the second sound generating device includes an in-vehicle sound generating device, and the in-vehicle sound generating device includes a sound generator covered by the vehicle interior material, and the sound generator can be configured to vibrate the vehicle interior material.

[0352] According to some embodiments of this specification, at least one or more of the first sound generating device and the second sound generating device can include a sound generator covered by the vehicle interior material.

[0353] According to some embodiments of the present specification, the acoustic generator includes an acoustic generating member having a piezoelectric vibrating portion, and the acoustic generating member may be configured to be connected to the vehicle interior material via an adhesive member.

[0354] According to some embodiments of the present specification, the acoustic generator includes a first plate, an acoustic generating member having a piezoelectric vibrating portion connected to the first plate, a second plate disposed on the back surface of the acoustic generating member, and a connecting member disposed between the first plate and the second plate so as to surround the acoustic generating member, and the first plate may be configured to be connected to the vehicle interior material via an adhesive member.

[0355] According to some embodiments of the present specification, the acoustic generator may include a plate, an acoustic generating member having a piezoelectric vibrating portion connected to the plate, and a connecting member disposed around the acoustic generating member and configured to be connected to the vehicle interior material.

[0356] A vehicle according to some embodiments of the present specification further includes a vehicle glass window and a third acoustic generating device having an acoustic generator disposed on the vehicle glass window, the acoustic generator including an acoustic generating member having a piezoelectric vibrating portion, and the acoustic generating member may be configured to be connected to the vehicle glass window via an adhesive member.

[0357] A vehicle according to some embodiments of the present specification further includes a vehicle glass window and a third acoustic generating device having an acoustic generator disposed on the vehicle glass window, the acoustic generator including a plate, an acoustic generating member having a piezoelectric vibrating portion configured to be connected to the plate, and a connecting member disposed around the acoustic generating member and configured to be connected to the vehicle glass window.

[0358] According to some embodiments of the present specification, the piezoelectric vibrating portion may include a plurality of inorganic material portions having piezoelectric characteristics and an organic material portion configured to be connected between the plurality of inorganic material portions.

[0359] According to some embodiments of this specification, an acoustic generator may include a plurality of vibrators configured to be separated from each other, and a first protective member disposed on a first surface of the piezoelectric vibrating portion and a second protective member disposed on a second surface opposite to the first surface of the piezoelectric vibrating portion.

[0360] According to some embodiments of this specification, each of the plurality of vibrators may include a plurality of inorganic material portions having piezoelectric characteristics, an organic material portion configured to be connected between the plurality of inorganic material portions, a first electrode portion interposed between each of the plurality of inorganic material portions and the organic material portion and the first protective member, and a second electrode portion interposed between each of the plurality of inorganic material portions and the organic material portion and the second protective member.

[0361] A vehicle according to some embodiments of this specification may further include an instrument panel device having a display, the display including a display panel and a vibration device disposed on the back surface of the display panel, and the instrument panel device may be configured to output sound by vibration of the display panel.

[0362] A vehicle according to some embodiments of this specification may further include an infotainment device disposed on a dashboard and having a display, the display including a display panel and a vibration device disposed on the back surface of the display panel, and the infotainment device may be configured to output sound by vibration of the display panel.

[0363] The specification described above is not limited to the foregoing embodiments and the attached drawings, and it will be apparent to those of ordinary skill in the art to which this specification pertains that a plurality of substitutions, modifications, and changes are possible without departing from the technical idea of this specification. Therefore, the scope of this specification is indicated by the claims described below, and all changes or modified forms derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included within the scope of this specification.

Description of Symbols

[0364] 10: Vehicle 30: Sound generating device 31, 33: Sound generators 110: Vehicle structure 130: Vehicle interior material 131: Base member 133: Skin member 310, 350: Sound generating members 330: Support member 340: Connecting member 353: Piezoelectric vibration part 356: First protection member 357: Second protection member 360: Plate 361, 365: Adhesive members 370: First plate 372: Second plate 374: Plate connecting member 380: Plate

Claims

1. An acoustic generator including an acoustic generating member configured to vibrate an interior trim material of a vehicle, wherein the acoustic generating member includes a plurality of vibration generators spaced apart from each other, a first protective member on a first surface of the plurality of vibration generators, and a second protective member on a second surface opposite to the first surface of the plurality of vibration generators, and the acoustic generator further includes a first plate between the acoustic generating member and the interior trim material of the vehicle and connected to the acoustic generating member, a second plate on the back surface of the acoustic generating member, and a connecting member surrounding the acoustic generating member and between the first plate and the second plate, a vehicle acoustic generator.

2. The acoustic generating member further includes a first adhesive layer between the plurality of vibration generators and the first protective member, and a second adhesive layer between the plurality of vibration generators and the second protective member, the vehicle acoustic generator according to claim 1.

3. The first adhesive layer and the second adhesive layer are connected to each other between the plurality of vibration generators, the vehicle acoustic generator according to claim 2.

4. The acoustic generating member is configured to be connected to the interior trim material of the vehicle by an adhesive member, the vehicle acoustic generator according to claim 1.

5. The second plate is spaced apart from the back surface of the acoustic generating member, the vehicle acoustic generator according to claim 1.

6. The first plate includes the same or different material as the second plate, the vehicle acoustic generator according to claim 1.

7. The first plate includes at least one of a plastic material, a metal material, and a wood material, the vehicle acoustic generator according to claim 1.

8. The acoustic generator further includes a first adhesive member between the acoustic generating member and the first plate, and a second adhesive member between the first plate and the interior trim material of the vehicle, the vehicle acoustic generator according to claim 1.

9. The acoustic generating member is spaced apart from the interior trim material of the vehicle, the vehicle acoustic generator according to claim 1.

10. The first plate or the second plate includes a transparent material or a translucent material, the vehicle acoustic generator according to claim 1.

11. The acoustic generator is configured to be transparent or translucent, the vehicle acoustic generator according to claim 1.

12. The plurality of vibration generators are configured to be arranged in an i×j form (where i is a natural number of 2 or more, and j is the same as i or a natural number of 1 or more) on the same plane, for the vehicle acoustic generating device according to any one of claims 1 to 11.

13. Each of the plurality of vibration generators a piezoelectric vibration part, a first electrode part between the first protection member and the piezoelectric vibration part, a second electrode part between the second protection member and the piezoelectric vibration part, for the vehicle acoustic generating device according to any one of claims 1 to 11.

14. The piezoelectric vibration part a plurality of inorganic material parts including piezoelectric characteristics, a plurality of organic material parts configured to be connected between the plurality of inorganic material parts, for the vehicle acoustic generating device according to claim 13.

15. The width of each of the plurality of organic material parts gradually decreases from the middle part to both end parts of the piezoelectric vibration part, for the vehicle acoustic generating device according to claim 14.

16. The plurality of organic material parts have a lower modulus and viscoelasticity than the plurality of inorganic material parts, for the vehicle acoustic generating device according to claim 14.

17. a display panel configured to display an image, at least one acoustic generating device configured to vibrate the display panel, and the at least one acoustic generating device includes the vehicle acoustic generating device according to any one of claims 1 to 11, a display device.

18. The plurality of vibration generators in the at least one acoustic generating device are configured to be arranged in an i×j form (where i is a natural number of 2 or more, and j is the same as i or a natural number of 1 or more) on the same plane, for the display device according to claim 17.

19. Each of the plurality of vibration generators in the at least one acoustic generating device a piezoelectric vibration part, a first electrode part between the first protection member and the piezoelectric vibration part, a second electrode part between the second protection member and the piezoelectric vibration part, for the display device according to claim 17.

20. The piezoelectric vibration part a plurality of inorganic material parts including piezoelectric characteristics, a plurality of organic material parts configured to be connected between the plurality of inorganic material parts, for the display device according to claim 19.

21. The width of each of the plurality of organic material parts gradually decreases from the middle part to both end parts of the piezoelectric vibration part, for the display device according to claim 20.

22. The display device according to claim 20, wherein the plurality of organic material portions have a lower modulus and viscoelasticity than the plurality of inorganic material portions.

23. A vehicle interior material that covers a vehicle structure, and an acoustic generator configured to vibrate the vehicle interior material to output sound, the vehicle comprising: The acoustic generator includes the vehicle acoustic generator according to any one of claims 1 to 11.

24. The vehicle according to claim 23, wherein the acoustic generator includes at least one of a first acoustic generator disposed between the vehicle structure and the vehicle interior material and a second acoustic generator disposed on the vehicle interior material.

25. A vehicle glass window, and a transparent acoustic generator disposed on the vehicle glass window, the vehicle according to claim 23, further comprising:

26. The vehicle according to claim 23, wherein the plurality of vibrators in the acoustic generator are configured to be arranged in a form of i × j (i is a natural number of 2 or more, and j is the same as i or a natural number of 1 or more) on the same plane.

27. Each of the plurality of vibrators in the acoustic generator includes a piezoelectric vibration portion, a first electrode portion between the first protection member and the piezoelectric vibration portion, and a second electrode portion between the second protection member and the piezoelectric vibration portion, the vehicle according to claim 23.

28. The piezoelectric vibration portion includes a plurality of inorganic material portions including piezoelectric characteristics, and a plurality of organic material portions configured to be connected between the plurality of inorganic material portions, the vehicle according to claim 27.

29. The vehicle according to claim 28, wherein the width of each of the plurality of organic material portions gradually decreases from the middle portion to both end portions of the piezoelectric vibration portion.

30. The vehicle according to claim 28, wherein the plurality of organic material portions have a lower modulus and viscoelasticity than the plurality of inorganic material portions.

31. The vehicle according to claim 23, wherein the vehicle interior material includes any one or more of plastic, fiber, leather, wood, cloth, metal, and glass.

32. The vehicle according to claim 23, wherein the vehicle interior material includes at least one of a dashboard, a pillar interior material, a roof interior material, a door interior material, a seat interior material, a steering wheel interior material, a floor interior material, a rearview mirror, an overhead console, a rear package interior material, a glove box, and a sun visor.

33. Further including an instrument panel device including a display, The display is, A display panel, A vibration device that is located on the back surface of the display panel and is configured to vibrate the display panel, and includes, The instrument panel device is the vehicle according to claim 23, which is configured to output sound by vibration of the display panel.

34. An in-vehicle infotainment device that is disposed on a dashboard and further includes a display, The display is, A display panel, A vibration device that is located on the back surface of the display panel, and includes, The in-vehicle infotainment device is the vehicle according to claim 23, which is configured to output sound by vibration of the display panel.

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