Device

Abstract

To provide an apparatus that generates a sound so that the sound travels toward a front surface of a display panel or vibration member.SOLUTION: An apparatus includes: a vibration member 100; and a vibration apparatus 130 at a rear surface of the vibration member to vibrate the vibration member. The vibration apparatus includes at least one or more first vibration portions 131 and a plurality of second vibration portions 132 different from the at least one or more first vibration portions. The at least one or more first vibration portions are disposed at a periphery of the plurality of second vibration portions.SELECTED DRAWING: Figure 3A

Description

[Technical field]

[0001] This specification relates to an apparatus, particularly, without limitation, an apparatus relating to or for vibration. [Background technology]

[0002] The device includes a separate speaker or audio device to provide sound. When the speaker is disposed in the device, there is a problem that the space occupied by the speaker imposes restrictions on the design and spatial layout of the device.

[0003] The speaker applied to the device may be, for example, an actuator including a magnet and a coil. However, when the actuator is applied to the device, there is a drawback that the thickness is large. Therefore, a piezoelectric element that can realize a thin thickness is attracting attention.

[0004] Piezoelectric elements have brittle properties and can be easily damaged by external impact, which can result in low reliability in sound reproduction. Furthermore, when a speaker such as a piezoelectric element is applied to a flexible device, the brittle properties can cause damage.

[0005] The description in the Background Art should not be considered as prior art merely because it is mentioned or related in the field of the Background Art. The description in the Background Art may include information describing one or more features of the subject technology, and the invention herein is not limited to the description in the Background Art. Summary of the Invention [Problem to be solved by the invention]

[0006] The inventors of the present specification have recognized the above problems and conducted several experiments to realize a vibration device capable of improving the sound quality of an acoustic sound and improving the sound pressure characteristics. Through several experiments, the inventors have invented an apparatus including a new vibration device capable of improving the sound quality of an acoustic sound and improving the sound pressure characteristics.

[0007] The problem to be solved by the embodiments of the present specification is to provide a device that can generate vibration or sound by vibrating a vibrating member and can improve acoustic characteristics and / or sound pressure characteristics.

[0008] The problems solved by the embodiments of the present specification are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description. [Means for solving the problem]

[0009] An apparatus according to an embodiment of the present specification includes a vibration member and a vibration device located on a rear surface of the vibration member to vibrate the vibration member, the vibration device including at least one or more first vibration parts and a plurality of second vibration parts different from the at least one or more first vibration parts, and the at least one or more first vibration parts can be located around the plurality of second vibration parts.

[0010] A device according to an embodiment of the present specification includes an exterior material covering a main structure, an interior material covering one or more of the main structure and the exterior material, and one or more vibration generating devices in one or more of the exterior material, the interior material, the area between the main structure and the exterior material, and the area between the main structure and the interior material. The device includes a vibration member. The one or more vibration generating devices include a vibration device. The vibration device includes a vibration device located on the back surface of the vibration member and vibrates the vibration member, and the vibration device includes at least one or more first vibration parts and a second vibration part having a plurality of vibration parts different from the at least one first vibration part. The at least one or more first vibration parts can be around the plurality of second vibration parts. The vibration member of the one or more vibration generating devices is an exterior material or an interior material. One or more of the exterior material and the interior material can output sound by vibration of the one or more vibration generating devices.

[0011] Other embodiment details are included in the detailed description and the drawings. Effect of the Invention

[0012] The device according to the embodiments of the present specification can generate sound by configuring a vibration device that vibrates a display panel or a vibration member, so that the direction of sound travel from the device is in front of the display panel or the vibration member.

[0013] The device according to the embodiments of the present specification is configured with a vibration device including a single crystal and a polycrystal, and by using the single crystal to complement the acoustic characteristics and / or sound pressure characteristics in the low frequency range, it is possible to provide a device having uniform acoustic characteristics and / or sound pressure characteristics in the frequency range.

[0014] The effects of the present specification are not limited to those mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art from the following description.

[0015] The contents of the invention described above in the "problem to be solved," "means for solving the problem," and "effect" do not specify essential features of the claims, and therefore the scope of the claims is not limited by the matters described in the "contents of the invention." [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 illustrates an apparatus according to an embodiment of the present disclosure. [Diagram 2] 2 is a cross-sectional view taken along line AA' shown in FIG. [Figure 3A] FIG. 1 illustrates a vibration device according to an embodiment of the present disclosure. [Figure 3B] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 3C] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 3D] FIG. 1 illustrates a vibration device according to an embodiment of the present disclosure. [Figure 3E] FIG. 1 illustrates a vibration device according to an embodiment of the present disclosure. [Figure 3F] FIG. 1 illustrates a vibration device according to an embodiment of the present disclosure. [Figure 4A] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 4B] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 4C] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 5A] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 5B] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 5C] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 6A] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 6B] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 6C] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 7] FIG. 1 illustrates a vibration device according to an embodiment of the present disclosure. [Figure 8A] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 8B] 8B is a cross-sectional view taken along line BB' shown in FIG. 8A. [Figure 9A] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 9B] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 9C] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 10] 2 is another cross-sectional view of the line AA' shown in FIG. 1. [Figure 11] FIG. 1 illustrates a vibration device according to another embodiment of the present disclosure. [Figure 12] FIG. 1 illustrates an apparatus according to another embodiment of the present disclosure. [Figure 13] FIG. 1 illustrates a transportation device according to an embodiment of the present disclosure. [Figure 14] FIG. 1 illustrates a transportation device according to an embodiment of the present disclosure. [Figure 15]1 illustrates vibrators positioned around the driver's seat and front passenger seat of a vehicle according to an embodiment of the present disclosure. [Figure 16] 1 illustrates a vibrator disposed on a door and glass window of a transportation device according to an embodiment of the present disclosure. [Figure 17] FIG. 13 illustrates a vibrator disposed on a roof panel of a transportation device according to another embodiment of the present disclosure. [Figure 18] 13A-13C show vibrators disposed on a roof panel, window pane and seat of a transportation device according to another embodiment of the present disclosure. [Figure 19] FIG. 1 illustrates the acoustic output characteristics of a device according to an embodiment of the present disclosure. [Figure 20] FIG. 1 illustrates the acoustic output characteristics of a device according to an embodiment of the present disclosure. [Figure 21] FIG. 1 illustrates the acoustic output characteristics of a device according to an embodiment of the present disclosure. [Figure 22] FIG. 1 illustrates the acoustic output characteristics of a device according to an embodiment of the present disclosure. [Figure 23] FIG. 1 illustrates the acoustic output characteristics of a device according to an embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] The advantages and features of the present specification, and the method of achieving them, will become apparent from the following detailed description of the embodiments with accompanying drawings. However, the present specification is not limited to the embodiments disclosed below, and may be embodied in various different forms. The embodiments are provided merely to complete the disclosure of the present specification and to fully inform those skilled in the art of the present specification of the scope of the invention, and the present specification is only defined by the claims.

[0018] The shapes, sizes, ratios, angles, numbers, etc. disclosed in the figures for explaining the embodiments of the present specification are illustrative and are not limited to the matters shown in the present specification. The same reference numbers refer to the same components throughout the specification. In addition, in the description of this specification, if it is determined that a specific description of related known technology may unnecessarily obscure the gist of this specification, the detailed description will be omitted. When "including," "having," "consisting of," etc. are used in this specification, other parts may be added unless "only" is used. When a component is expressed in the singular, it includes a case where it includes a plurality unless otherwise explicitly stated.

[0019] When interpreting elements, they are to be interpreted as including error ranges even if there is no explicit mention of such ranges.

[0020] When describing the location of two parts, e.g., "above," "on top," "below," "next to," etc., one or more other parts may be located between the two parts, unless, e.g., "immediately" or "directly" is used.

[0021] When describing a temporal relationship, when the temporal context is described using "after," "followed by," "next to," "before," etc., non-consecutive cases can be included unless "immediately" or "directly" is used.

[0022] Although the terms "first", "second" and the like are used to describe various components, these components are not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, the first component referred to below may be the second component within the technical concept of this specification.

[0023] In order to describe components in this specification, terms such as first, second, A, B, (a), (b), etc. may be used. These terms are used to distinguish the components from other components, and do not limit the nature, order, sequence, number, etc., of the components. When a component is described as being "coupled," "connected," or "connected" to another component, it should be understood that the component can be directly connected or connected to the other component, but unless otherwise expressly stated, other components may be "intervening" between each component that can be indirectly connected or connected.

[0024] It should be understood that "at least one" includes all combinations of one or more of the associated components. For example, the meaning of "at least one of the first, second, and third components" is not limited to the first, second, or third components, but includes all combinations of two or more of the first, second, and third components.

[0025] In this specification, the term "apparatus" may include display devices such as a liquid crystal module (LCM) including a display panel and a driver for driving the display panel, an organic light emitting display module (OLED module), etc. Also, the term may include set electronic apparatuses or set devices or set apparatuses such as notebook computers, televisions, computer monitors, automotive apparatuses or equipment apparatuses including different forms of vehicles, etc., which are complete products or final products including LCMs, OLED modules, etc., and mobile electronic apparatuses such as smartphones or electronic pads.

[0026] Therefore, the device in this specification can include a display device itself such as an LCM, an OLED module, etc., and a set device which is an application product or a final consumer device including an LCM, an OLED module, etc.

[0027] In some embodiments, an LCM or OLED module including a display panel and a driver may be referred to as a "display device," and an electronic device as a complete product including the LCM or OLED module may be referred to as a "set device." For example, the display device may include a liquid crystal (LCD) or organic light emitting diode (OLED) display panel and a source PCB serving as a controller for driving the display panel. The set device may further include a set PCB serving as a set controller electrically connected to the source PCB to drive the entire set device.

[0028] The display panel used in the embodiments of the present specification may be any type of display panel such as a liquid crystal display panel, an organic light emitting diode (OLED) display panel, and an electroluminescent display panel, and the embodiments are not limited thereto. For example, the display panel may be a display panel capable of generating sound by vibrating with a vibration device according to the embodiments of the present specification. The display panel applied to the display device according to the embodiments of the present specification is not limited to the shape or size of the display panel.

[0029] For example, when the display panel is a liquid crystal display panel, it may include a plurality of gate lines and data lines, and pixels formed at the intersections of the gate lines and the data lines. It may also include an array substrate including a thin film transistor, which is a switching element for adjusting light transmittance in each pixel, an upper substrate including a color filter and / or a black matrix, and a liquid crystal layer formed between the array substrate and the upper substrate.

[0030] When the display panel is an organic electroluminescence (OLED) display panel, it may include a plurality of gate lines and data lines, and pixels formed at the intersections of the gate lines and the data lines. The display panel may include an array substrate including a thin film transistor, which is an element for selectively applying a voltage to each pixel, an organic light emitting device (OLED) layer on the array substrate, and a sealing substrate or an encapsulation substrate disposed on the array substrate to cover the organic light emitting device layer. The sealing substrate may protect the thin film transistor and the organic light emitting device layer from external impact and prevent moisture or oxygen from penetrating into the organic light emitting device layer. The layer formed on the array substrate may include an inorganic light emitting layer, for example, a nano-sized material layer, a quantum dot light emitting layer, etc. As another embodiment, it may include a micro light emitting diode.

[0031] The display panel may further include a backing, such as a metal plate attached to the display panel. Other structures, for example made of other materials, may also be included.

[0032] The features of the various embodiments of this specification may be partially or fully combined or combined with each other, may be technically linked and driven in various ways, and each embodiment may be implemented independently of each other or may be implemented together in relation to each other.

[0033] Hereinafter, the present specification will be described with reference to the accompanying drawings and examples. The scales of components shown in the drawings have different scales, dimensions, sizes and thicknesses from the actual scales for convenience of explanation, and therefore the scales, dimensions, sizes and thicknesses are not limited to those shown in the drawings.

[0034] Fig. 1 is a diagram showing an apparatus according to an embodiment of the present specification, and Fig. 2 is a cross-sectional view taken along line AA' shown in Fig. 1.

[0035] 1 and 2, a device according to an embodiment of the present specification may include a vibration member 100 and a vibration device 130 disposed on the rear (or back) side of the vibration member 100. For example, the vibration member 100 may be, but is not limited to, a passive vibration member, a vibration target, a display panel, a diaphragm, or a front member. In the following, an example will be described in which the vibration member is a display panel. The vibration member 100 may have a first surface facing or exposed to the exterior of the device, and a second surface facing the interior of the device. As used herein, a reference to a vibration device 130 disposed on the rear side of the vibration member 100 may refer to a vibration device 130 disposed directly on the second surface of the vibration member 100 or having one or more additional components therebetween.

[0036] The vibrating member 100 according to the embodiment of the present specification may be a display panel that displays an image. The display panel may display an image, for example, an image (such as an electronic image, a digital image, a still image, or a video image). For example, the display panel may display an image by outputting light. The display panel may be any type 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 the like. The display panel may be a flexible display panel. For example, the display panel may be, but is not limited to, a flexible light emitting display panel, a flexible electrophoretic display panel, a flexible electrowetting display panel, a flexible micro light emitting diode display panel, or a flexible quantum dot light emitting display panel.

[0037] The display panel according to the embodiment of the present specification may include a display area (AA) that displays an image by driving a plurality of pixels, and may include, but is not limited to, a non-display area (IA) surrounding the display area (AA).

[0038] The display panel according to the embodiment of the present specification may display an image in a top emission type, a bottom emission type, a dual emission type, or the like, depending on the structure of a pixel array layer including an anode electrode, a cathode electrode, and a light emitting element. The top emission type may display an image by emitting visible light generated in the pixel array layer to the front of the base substrate, and the bottom emission type may display an image by emitting visible light generated in the pixel array layer to the rear of the base substrate.

[0039] A display panel according to an embodiment of the present specification may include a pixel array unit arranged in a pixel region formed by a plurality of gate lines and / or a plurality of data lines. The pixel array unit may include a plurality of pixels that display an image according to signals supplied to signal lines. The signal lines may include, but are not limited to, gate lines, data lines, pixel driving power lines, etc.

[0040] Each of the plurality of pixels may include a pixel circuit layer including a driving thin film transistor provided in a pixel region, an anode electrode electrically connected to the driving thin film transistor, a light emitting element formed on the anode electrode, and a cathode electrode electrically connected to the light emitting element.

[0041] The driving thin film transistor can be configured in a transistor region of each pixel region disposed on the substrate. The driving thin film transistor can include a gate electrode, a gate insulating film, a semiconductor layer, a source electrode, and a drain electrode. The semiconductor layer of the thin film transistor can include silicon such as a-Si, poly-Si, or low-temperature poly-Si, or can include an oxide such as IGZO (Indium-Gallium-Zinc-Oxide), but is not limited thereto.

[0042] The anode electrode may be disposed in an opening region disposed in each pixel region and may be electrically connected to the driving thin film transistor.

[0043] The light emitting device according to the embodiment of the present specification may include a light emitting device layer formed on an anode electrode. The light emitting device layer may be embodied to emit light of the same color, for example, white light, for each pixel, or may be embodied to emit light of different colors, for example, red, green, or blue light, for each pixel. A cathode electrode (or a common electrode) may be commonly connected to the light emitting device layer provided in each pixel region. For example, the light emitting device layer may be a single structure including the same color for each pixel, or a stack structure including two or more structures. In other embodiments of the present specification, the light emitting device layer may be a stack structure including two or more structures including one or more other colors for each pixel. The two or more structures including one or more other colors may be one or more of blue, red, yellow green, and green, or a combination thereof, but are not limited thereto. Examples of combinations may include, but are not limited to, blue and red, red and yellow green, red and green, and red / yellow green / green. The stack structure may be applied regardless of the stacking order. The stack structure including two or more structures having the same color or one or more other colors may further include a charge generation layer between the two or more structures. The charge generation layer may be a PN junction structure and may include an N-type charge generation layer and a P-type charge generation layer.

[0044] A light emitting device according to another embodiment of the present specification may include a micro light emitting diode device electrically connected to each of an anode electrode and a cathode electrode. The micro light emitting diode device may be a light emitting diode implemented in the form of an integrated circuit (IC) or a chip. The micro light emitting diode device may include a first terminal electrically connected to the anode electrode and a second terminal electrically connected to the cathode electrode. The cathode electrode may be commonly connected to the second terminals of the light emitting diode devices provided in each pixel region.

[0045] The sealing part is formed on the substrate so as to surround the pixel array part, and can prevent oxygen or moisture from penetrating into the light emitting element of the pixel array part. The sealing part according to the embodiment of the present specification may be formed in a multi-layer structure in which an organic material layer and an inorganic material layer are alternately stacked, but is not limited thereto. The inorganic material layer can block oxygen or moisture from penetrating into the light emitting element of the pixel array part. The organic material layer may be formed to a relatively thicker thickness than the inorganic material layer so as to cover foreign matter that may occur during the manufacturing process, but is not limited thereto. For example, the sealing part may include a first inorganic film, an organic film on the first inorganic film, and a second inorganic film on the organic film. The organic film may be a foreign matter cover layer, and is not limited to the term. The touch panel may be disposed on the sealing part or on the back surface of the pixel array part.

[0046] A display panel according to an embodiment of the present specification may include a first substrate, a second substrate, and a liquid crystal layer. The first substrate may be an upper substrate or a thin film transistor array substrate. For example, the first substrate may include a pixel array (or a display unit or a display region) having a plurality of pixels formed in a pixel region intersected by a plurality of gate lines and / or a plurality of data lines. Each of the plurality of pixels may include a thin film transistor connected to the gate line and / or the data line, a pixel electrode connected to the thin film transistor, and a common electrode formed adjacent to the pixel electrode and supplied with a common voltage.

[0047] The first substrate may further include a pad portion provided at the first end (or the non-display portion or the first periphery) and a gate driving circuit provided at the second end (or the second non-display portion or the second periphery).

[0048] The pad unit may supply an externally supplied signal to the pixel array and / or the gate driving circuit. For example, the pad unit may include a plurality of data pads connected to a plurality of data lines via a plurality of data link lines and / or a plurality of gate input pads connected to a gate driving circuit via a gate control signal line. For example, the first substrate may have a larger size than the second substrate, and the embodiments of the present specification are not limited thereto.

[0049] The gate driving circuit may be built in (or integrated) at the second end (or second periphery) of the first substrate to be connected to the gate lines. For example, the gate driving circuit may be realized as a shift register including transistors formed by the same process as the thin film transistors provided in the pixel region. The gate driving circuit according to other embodiments of the present specification may be included in the panel driving circuit in the form of an integrated circuit, without being built in the first substrate.

[0050] The second substrate may be a lower substrate or a color filter array substrate. For example, the second substrate may include pixels that may include an opening region overlapping a pixel region formed on the first substrate, and a color filter layer formed in the opening region. The second substrate may have a size smaller than that of the first substrate, but is not limited thereto. For example, the second substrate may overlap with the remaining portion of the first substrate except for the first end (or first periphery). The second substrate may be bonded (or attached) to the remaining portion of the first substrate except for the first end (or first periphery) by sandwiching the liquid crystal layer by a sealant.

[0051] The liquid crystal layer may be disposed between the first substrate and the second substrate, and may be made of liquid crystal in which the alignment direction of liquid crystal molecules changes depending on an electric field formed by a data voltage and a common voltage applied to a pixel electrode for each pixel.

[0052] The second polarizing member is disposed on the lower surface of the second substrate and can polarize light incident from the backlight and traveling to the liquid crystal layer, while the first polarizing member is disposed on the upper surface of the first substrate and can polarize light passing through the first substrate and emitting to the outside.

[0053] The display panel according to the embodiments of the present specification can display images by light passing through the liquid crystal layer by driving the liquid crystal layer with an electric field formed for each pixel by a data voltage and a common voltage applied to each pixel.

[0054] In the display panel according to another embodiment of the present specification, the first substrate may be a color filter array substrate, and the second substrate may be a thin film transistor array substrate. For example, the display panel according to another embodiment of the present specification may have a shape in which the display panel according to the embodiment of the present specification is inverted upside down. In this case, the pad part of the display panel according to another embodiment of the present specification may be covered by a separate mechanism (or structure).

[0055] Display panels according to other embodiments herein may include curved shapes or bent or flexed portions that are bent or flexed to have a certain radius of curvature.

[0056] The bent portion of the display panel 100 may be implemented in at least one of one side end portion (or one side periphery) and the other side end portion (or the other side periphery) which are parallel to each other in the display panel. The one side end (or one side periphery) and / or the other side end (or the other side periphery) of the display panel implementing the bent portion may include only the non-display area (IA) or may include the edge of the display area (AA) and the non-display area (IA). The display panel including the bent portion implemented by bending the non-display area (IA) may have a one-sided bezel bent structure or a two-sided bezel bent structure. And, the display panel including the bent portion implemented by bending the edge (or periphery) of the display area (AA) and the non-display area (IA) may have a one-sided active bent structure or a two-sided active bent structure.

[0057] According to other embodiments of the present disclosure, the vibrating member 100 may be one or more of, but is not limited to, metal, wood, rubber, plastic, glass, cloth, fiber, paper, mirror, and leather. For example, the paper may be a cone paper for a speaker. For example, the cone paper may be, but is not limited to, pulp or foamed plastic, etc.

[0058] For example, the vibration member 100 may include a display panel having a plurality of pixels for displaying an image, and / or may be one or more of an automobile interior material, an automobile glass window, an interior ceiling of a building, a glass window of a building, an interior material of a building, an interior material of an aircraft, and an aircraft window glass, etc., but is not limited thereto. For example, the vibration member 100 may include one or more of a display panel having a plurality of pixels for displaying an image, a screen panel onto which an image is projected from a display device, a lighting panel, a signage panel, an interior material of a vehicle, a glass window of a vehicle, an exterior material of a vehicle, a ceiling material of a building, an interior material of a building, a glass window of a building, and a mirror, but is not limited thereto. For example, the display panel may be any type of display panel or a 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, and an electrophoretic display panel. For example, the display panel may be a flexible display panel. For example, the display panel may be, but is not limited to, a flexible light-emitting display panel, a flexible electrophoretic display panel, a flexible electrowetting display panel, a flexible micro light-emitting diode display panel, or a flexible quantum dot light-emitting display panel. For example, the non-display panel may be, but is not limited to, a light-emitting diode lighting panel (or device), an organic light-emitting lighting panel (or device), or an inorganic light-emitting lighting panel (or device). For example, the vibrating member 100 (or vibrating object) may include, but is not limited to, a display panel having a plurality of pixels for displaying an image, or may be one or more of a light-emitting diode lighting panel (or device), an organic light-emitting lighting panel (or device), or an inorganic light-emitting lighting panel (or device).

[0059] The vibration device 130 can vibrate the vibrating member 100. For example, the vibration device 130 can be embodied on the back surface of the vibrating member 100 so as to directly vibrate the vibrating member 100. For example, the vibration device 130 can provide the user with sound and / or haptic feedback based on the vibration of the vibrating member 100 by vibrating the vibrating member 100 on the back surface of the vibrating member 100. For example, the vibrating member 100 can output sound by the vibration of the vibration device 130. The vibration device 130 can output sound by using the vibrating member 100 as a diaphragm. For example, the vibration device 130 can output sound to the front surface of the vibrating member 100 using the vibrating member 100 as a diaphragm. For example, the vibration device 130 can generate sound such that the sound travels toward the display panel or the front surface of the vibrating member 100. The vibration device 130 can output sound by vibrating the vibrating member 100. For example, the vibration device 130 can output sound by directly vibrating the vibrating member 100. For example, the vibration member 100 can be (or include), a vibrating object, a diaphragm, or a front member, although embodiments herein are not limited thereto.

[0060] According to an embodiment of the present specification, the vibration device 130 can vibrate the display panel by vibrating according to a vibration drive signal synchronized with an image displayed on the display panel, which is the vibrating member 100. According to another embodiment of the present specification, the vibration device 130 can vibrate the display panel by vibrating according to a haptic feedback signal (or tactile feedback signal) synchronized with a user's touch on a touch panel (or a touch sensor layer) disposed on or built into the display panel. In this way, the display panel can vibrate according to the vibration of the vibration device 130, and provide at least one of audio and haptic feedback to the user (or viewer).

[0061] The vibration device 130 according to the embodiment of the present specification may be embodied in a size corresponding to the display area (AA) of the vibrating member 100 or the display panel. The size of the vibration device 130 may be 0.9 to 1.1 times the size of the vibrating member 100 or the display area (AA), but is not limited thereto. For example, the size of the vibration device 130 may be the same as or smaller than the size of the vibrating member 100 or the display area (AA). For example, the size of the vibration device 130 may be the same as or approximately the same as the size of the vibrating member 100 or the display area (AA) of the display panel, so that it can cover most of the area of ​​the vibrating member 100 or the display panel, and the vibration generated by the vibration device 130 can vibrate the entire area of ​​the vibrating member 100 or the display panel, so that the sense of sound localization is high and the satisfaction of the user can be improved. In addition, the contact area (or panel coverage) between the vibrating member 100 or the display panel and the vibrating device 130 can be increased, and the vibration area of ​​the vibrating member 100 or the display panel can be increased, so that the sound in the deep bass range generated by the vibration of the vibrating member 100 or the display panel can be improved. And, the vibrating device 130 applied to a large device can vibrate the entire large (or large area) vibrating member 100 or the display panel, so that the sense of localization of the sound caused by the vibration of the vibrating member 100 or the display panel can be further improved, and improved sound effects can be realized. Therefore, the vibrating device 130 according to the embodiment of the present specification is disposed on the back or on the top of the vibrating member 100 or the display panel, and can sufficiently vibrate the vibrating member 100 or the display panel in the up-down (or front-back) direction, so that the desired sound can be output in front of the device.

[0062] Since the vibration device 130 is embodied in a film form, it may have a thickness thinner than the vibration member 100 or the display panel, so that an increase in the thickness of the device due to the arrangement of the vibration device 130 can be minimized. For example, the vibration device 130 may use the vibration member 100 or the display panel as an acoustic diaphragm. For example, the vibration device 130 may be expressed as a vibration generator, a displacement device, an acoustic device, an acoustic generation module, an acoustic generator, a film actuator, a film type piezoelectric composite actuator, a film speaker, a film type piezoelectric speaker, or a film type piezoelectric composite speaker, and is not limited to the terms. In other embodiments of the present specification, the vibration device 130 may not be disposed on the rear surface of the display panel, and may be applied to a non-display panel instead of the display panel. For example, the vibration device 130 may be applied to one or more of wood, plastic, glass, metal, cloth, fiber, rubber, paper, mirror, leather, automotive interior materials, ceilings, aircraft, and the like, and is not limited thereto. In this case, the non-display panel may be applied as a diaphragm, and the non-display panel may be vibrated to output sound.

[0063] The vibration device 130 according to embodiments herein may be disposed on the back of the vibration member 100 or the display panel so as to overlap the display area of ​​the vibration member 100 or the display panel. For example, the vibration device 130 may overlap more than half of the display area of ​​the vibration member 100 or more than half of the display area of ​​the display panel. In other embodiments herein, the vibration device 130 may overlap the entire vibration member 100 or the entire display area of ​​the display panel.

[0064] According to another embodiment of the present disclosure, the vibrating member 100 may include a plate. The plate may include a metallic material or any one or more of a single non-metallic or composite non-metallic material including, but not limited to, wood, plastic, glass, cloth, fiber, rubber, paper, mirror, and leather.

[0065] The vibration device 130 according to the embodiment of the present specification can vibrate by alternately repeating contraction and expansion due to the inverse piezoelectric effect when an AC voltage is applied, and can vibrate the vibrating member 100 or the display panel through the vibration. For example, the vibration device 130 can vibrate the display panel by vibrating with a voice signal synchronized with an image displayed on the display panel. In another embodiment of the present specification, the vibration device 130 can vibrate the display panel by vibrating with a haptic feedback signal (or tactile feedback signal) synchronized with a user's touch on a touch panel (or a touch sensor layer) disposed on or built into the display panel. In this way, the display panel can vibrate due to the vibration of the vibration device 130, and can provide at least one of audio and haptic feedback to the user (or viewer).

[0066] Therefore, the device according to the embodiments of the present specification can output sound generated by vibration of the vibrating member 100 or the display panel due to vibration of the vibrating device 130 to the front of the vibrating member 100 or the display panel, and the device according to the embodiments of the present specification can vibrate most of the area of ​​the vibrating member 100 (or the display panel) due to the film-shaped vibrating device 130, thereby further improving the sound pressure characteristics and sense of sound localization caused by the vibration of the vibrating member 100 (or the display panel).

[0067] The device according to the embodiments of the present disclosure may further include a coupling member 150 (or a first coupling member) between the vibration member 100 and the vibration device 130 .

[0068] For example, the connecting member 150 can be disposed between the rear surface (or back surface) of the vibration member 100 and the vibration device 130, and can connect or couple the vibration device 130 to the rear surface of the vibration member 100. For example, the vibration device 130 can be supported or disposed on the rear surface of the vibration member 100 by connecting or coupling the vibration device 130 to the rear surface of the vibration member 100 via the connecting member 150.

[0069] The connecting member 150 according to the embodiment of the present specification may be made of a material including an adhesive layer having excellent adhesion or bonding strength to each of the rear surface of the vibrating member 100 and the vibrating device 130. For example, the connecting member 150 may include, but is not limited to, a foam pad, a double-sided tape, a double-sided foam pad, a double-sided foam tape, or an adhesive. For example, the adhesive layer of the connecting member 150 may include, but is not limited to, epoxy, acrylic, silicone, or urethane. For example, the adhesive layer of the connecting member 150 may include an acrylic-based substance (or material) having relatively better adhesion and higher hardness than urethane. This allows the vibration of the vibrating device 130 to be well transmitted to the vibrating member 100.

[0070] The adhesive layer of the connecting member 150 may further include an additive such as, but not limited to, a tackifier, a wax component, or an antioxidant. The additive can prevent the connecting member 150 from falling off (or peeling off) from the vibrating member 100 due to the vibration of the vibration device 130. For example, the tackifier can be a rosin derivative, the wax component can be paraffin wax, and the antioxidant can be a phenol-based antioxidant such as a thioester, and the examples of the present specification are not limited thereto.

[0071] The connecting member 150 according to another embodiment of the present specification may further include a hollow portion provided between the vibrating member 100 and the vibrating device 130. The hollow portion of the connecting member 150 may provide an air gap between the vibrating member 100 and the vibrating device 130. The air gap allows sound waves (or sound pressure) caused by the vibration of the vibrating device 130 to be concentrated on the vibrating member 100 without being dispersed by the connecting member 150, thereby minimizing vibration loss caused by the connecting member 150 and improving the sound pressure characteristics of the sound generated by the vibration of the vibrating member 100.

[0072] The device according to the embodiments of the present disclosure may further include a support member 300 disposed on the back (or rear) surface of the vibration member 100 .

[0073] The support member 300 can be disposed on the rear surface of the vibrating member 100 or the display panel. For example, the support member 300 can cover the rear surface of the vibrating member 100 or the display panel. For example, the support member 300 can cover the entire rear surface of the vibrating member 100 or the display panel with a gap space (GS) in between. The support member 300 can be separated from the rear surface of the vibrating member 100 or the display panel with a gap space (GS) in between, or separated from the vibration device 100. For example, the gap space (GS) can be expressed as an air gap, a vibration space, an acoustic resonator, or the like, and is not limited to the terms.

[0074] For example, the support member 300 may include at least one of glass, metal, and plastic materials. For example, the support member 300 may be a rear structure, a set structure, a support structure, a support cover, a rear member, a case, or a housing, and is not limited to these terms. The support member 300 may be expressed by other terms such as a cover bottom, a plate bottom, a back cover, a base frame, a metal frame, a metal chassis, a chassis base, or an m-chassis. For example, the support member 300 may be embodied as any type of frame or plate-like structure disposed on the rear of the vibration member 100.

[0075] The edge portion or sharp corner portion (or periphery) of the support member 300 may have a beveled or curved shape by a chamfering process or a corner rounding process. For example, the glass support member 300 may be sapphire glass. In another embodiment of the present specification, the metal support member 300 may be made of any one or more of aluminum, aluminum alloy, magnesium, magnesium alloy, and iron-nickel alloy.

[0076] A support member 300 according to embodiments herein can include a first support member 310 and a second support member 330 .

[0077] The first support member 310 may be disposed between the rear surface of the vibrating member 100 or the display panel and the second support member 330. For example, the first support member 310 may be disposed between the rear end portion (or rear periphery) of the vibrating member 100 or the display panel and the front end portion (or front periphery) of the second support member 330. The first support member 310 may support one or more of the end portion (or peripheral portion) of the vibrating member 100 or the display panel and the end portion (or peripheral portion) of the second support member 330. In other embodiments of the present specification, the first support member 310 may cover the rear surface of the vibrating member 100 or the display panel. For example, the first support member 310 may cover the entire rear surface of the vibrating member 100 or the display panel. For example, the first support member 310 may be a member that covers the entire rear surface of the vibrating member 100 or the display panel. For example, the first support member 310 may include at least one material selected from the group consisting of a glass material, a metal material, and a plastic material. For example, the first support member 310 may be an inner plate, a first rear structure, a first support structure, a first support cover, a first back cover, a first rear member, an inner plate, or an inner cover, and is not limited to the terms. For example, the first support member 310 may be omitted.

[0078] The first support member 310 may be separated from the rear end surface of the vibrating member 100 through a gap space (GS) or may be separated from the vibrating device 130. For example, the gap space (GS) may be expressed as an air gap, a vibration space, or an acoustic resonator, and is not limited to the terminology.

[0079] The second support member 330 may be disposed on the rear surface of the first support member 310. The second support member 330 may be a member that covers the entire rear surface of the vibration member 100 or the display panel. For example, the second support member 330 may include at least one of a glass material, a metal material, and a plastic material. For example, the second support member 330 may be an outer plate, a rear plate, a back plate, a back cover, a rear cover, a second rear structure, a second support structure, a second support cover, a second back cover, a second rear member, an outer plate, or an outer cover, and is not limited to the terms.

[0080] The support member 300 according to the embodiments of the present disclosure may further include a connecting member 350 (or a second connecting member).

[0081] The connecting member 350 may be disposed between the first support member 310 and the second support member 330. For example, the first support member 310 and the second support member 330 may be bonded or connected to each other via the connecting member 350. For example, the connecting member 350 may be, but is not limited to, an adhesive resin, a double-sided tape, or a double-sided adhesive foam pad. For example, the connecting member 350 may have elasticity for shock absorption, but is not limited to this. For example, the connecting member 350 may be disposed in the entire area between the first support member 310 and the second support member 330. In other embodiments of the present specification, the connecting member 350 may be formed in a net-like structure having an air gap between the first support member 310 and the second support member 330.

[0082] The device according to the embodiment of the present specification may further include a middle frame 400. The middle frame 400 may be disposed between the rear end (or rear periphery) of the vibration member 100 or the display panel and the front end (or front periphery) of the support member 300. The middle frame 400 may support one or more of the end portion (or peripheral portion) of the display panel and the end portion (or peripheral portion) of the support member 300. The middle frame 400 may surround one or more of the respective sides of the display panel and the support member 300. The middle frame 400 may provide a gap space (GS) between the display panel and the support member 300. The middle frame 400 may be expressed as a middle cabinet, a middle cover, a middle chassis, a connecting member, a frame, a frame member, an intermediate member, or a side cover member, and is not limited to the terms.

[0083] The middle frame 400 according to the embodiment of the present specification may include a first support portion 410 and a second support portion 430. For example, the first support portion 410 may be a support portion, and is not limited to the term. For example, the second support portion 430 may be a side wall portion, and is not limited to the term.

[0084] The first support part 410 is disposed between the rear end (or rear periphery) of the vibrating member 100 or the display panel and the front end (or front periphery) of the support member 300, thereby providing a gap space (GS) between the vibrating member 100 or the display panel and the support member 300. The front surface of the first support part 410 may be coupled or connected to the rear end (or rear periphery) of the vibrating member 100 or the display panel via a first connecting member 401. The rear surface of the first support part 410 may be coupled or connected to the front end (or front periphery) of the support member 300 via a second connecting member 403. For example, the first support part 410 may have a single frame structure in a rectangular shape or may include a frame structure in a multiple divided bar shape, and other embodiments of the present specification are not limited thereto.

[0085] The second support part 430 can be arranged parallel to the thickness direction (Z) of the device. For example, the second support part 430 can be vertically coupled to the outer surface of the first support part 410 so as to be parallel to the thickness direction (Z) of the device. The second support part 430 can protect the outer surfaces of the vibration member 100 and the support member 300 by surrounding one or more of the outer surfaces of the vibration member 100 and the support member 300. The first support part 410 can protrude from the inner surface of the second support part 430 into the gap space (GS) between the vibration member 100 and the support member 300.

[0086] Apparatus according to embodiments herein may include a panel connecting member (or connecting members) in place of the middle frame 400 .

[0087] The panel connecting member is disposed between the rear end (or rear periphery) of the vibrating member 100 and the front end (or front periphery) of the support member 300, thereby providing a gap space (GS) between the vibrating member 100 and the support member 300. The panel connecting member is disposed between the rear end (or rear periphery) of the vibrating member 100 and the front end (or front periphery) of the support member 300, thereby bonding the vibrating member 100 and the support member 300. For example, the panel connecting member may be embodied as a double-sided tape, a single-sided tape, or a double-sided adhesive foam pad, but is not limited thereto. For example, the adhesive layer of the panel connecting member may include, but is not limited to, epoxy, acrylic, silicone, or urethane. For example, the adhesive layer of the panel connecting member may include a urethane-based substance (or material) having relatively softer properties than urethane and acrylic in order to minimize the transmission of vibration of the vibrating member 100 to the support member 300. This can minimize the vibration of the vibrating member 100 transmitted to the display panel or the support member 300.

[0088] In the device according to the embodiment of the present specification, when the panel connecting member is included instead of the middle frame 400, the support member 300 may include a curved sidewall that is bent from one side (or tip) of the second support member 330 and surrounds one or more of the outer surfaces (or outer walls) of the first support member 310, the panel connecting member, and the vibration member 100. The curved sidewall according to the embodiment of the present specification may have a single sidewall structure or a hemming structure. The hemming structure may be a structure in which the ends of any member are bent into a curved shape to overlap each other or are spaced apart parallel to each other. For example, in order to improve the aesthetic appearance of the side design, the curved sidewall may include a first curved sidewall that is bent from one side (or tip) of the second support member 330 and a second curved sidewall that is bent from the first curved sidewall to between the first curved sidewall and the outer surface of the vibration member 100. The second bending side wall may contact the inner side of the first bending side wall, or may be spaced apart from the inner side of the first bending side wall so as to reduce the transmission of an external impact in the lateral direction to the outer side of the vibration member 100. Thus, the second bending side wall may prevent the outer side of the vibration member 100 from contacting the inner side of the first bending side wall, or may reduce the transmission of an external impact in the lateral direction to the outer side of the vibration member 100.

[0089] In other embodiments of the present disclosure, the device according to the embodiments of the present disclosure may omit the middle frame 400. The middle frame 400 may be replaced by a panel connecting member or adhesive. In other embodiments of the present disclosure, the middle frame 400 may be replaced by a partition.

[0090] The inventors of this specification conducted various experiments to improve the acoustic characteristics in the low frequency range because the acoustic characteristics and / or sound pressure characteristics in the low frequency range are degraded when the vibration device 130 is configured as a film type vibration device. Through several experiments, they invented a device with a new structure that can improve the acoustic characteristics and / or sound pressure characteristics in the low frequency range. This will be described below.

[0091] 3A to 3C are diagrams showing a vibration section according to an embodiment of the present specification.

[0092] 3A to 3C, a vibration device 130 according to an embodiment of the present specification may include a first vibration part 131 and a second vibration part 132. For example, the first vibration part 131 may be configured with or include at least one or more first vibration parts. For example, the second vibration part 132 may be configured with or include a plurality of second vibration parts. The plurality of second vibration parts may be different from the one or more first vibration parts. For example, one or more of the shape, size, material, material properties, or acoustic output properties of the plurality of second vibration parts may be different from the one or more first vibration parts.

[0093] According to an embodiment of the present specification, the first vibrating part 131 may be made of a material having a polycrystalline structure, and the second vibrating part 132 may be made of a material having a single crystal structure. For example, the first vibrating part 131 may be made of a polycrystalline ceramic, and the second vibrating part 132 may be made of a single crystal ceramic.

[0094] For example, the first vibration part 131 may be a polycrystalline vibration part, and the second vibration part 132 may be a single crystal vibration part. For example, the first vibration part 131 may be composed of irregular grains in which various crystal domains exist. For example, the second vibration part 132 may have a structure in which grains having a single crystal domain of a certain structure are regularly arranged. The first vibration part 131 has vibration characteristics approximately two to three times smaller than the second vibration part 132, which causes a problem of lower sound pressure characteristics in the low frequency range. However, since it can be manufactured in a large area, it can be embodied as a large vibration device or acoustic device. The second vibration part 132 has vibration characteristics, such as a piezoelectric constant (d 33is larger in the thickness direction (Z), for example, the piezoelectric deformation constant "d33" is two or three times larger in the thickness direction (Z). Since it is possible to manufacture a vibration element that is about two to three times larger, it is possible to have relatively high sound pressure characteristics (or acoustic characteristics) in the low frequency range. Therefore, the inventors of the present specification conducted several experiments to apply the second vibration part 132 in order to improve the acoustic characteristics and / or sound pressure characteristics in the low frequency range that occur when a vibration device is realized with the first vibration part 131. Through several experiments, a vibration device including the first vibration part 131 and the second vibration part 132 was invented. This will be described below.

[0095] The vibration device 130 according to the embodiment of the present specification can vibrate by alternately repeating contraction and expansion due to the piezoelectric effect (or piezoelectric properties). The vibration device 130 according to the embodiment of the present specification can vibrate the vibrating member 100 or the display panel by vibrating in the thickness direction (Z) by alternately repeating contraction and expansion due to the inverse piezoelectric effect and / or the piezoelectric effect. For example, the vibration device 130 can be a vibrating film, a displacement generator, a displacement film, an acoustic generator, a vibrating array, a vibrating array section, a vibrating structure array section, or a vibrating array structure, and is not limited to the terms.

[0096] Each of the first vibrating part 131 and the second vibrating part 132 may include a piezoelectric material having a piezoelectric effect, a composite piezoelectric material, or an electroactive material. Each of the first vibrating part 131 and the second vibrating part 132 may be expressed by terms such as a piezoelectric vibration part, a piezoelectric vibration layer, a displacement part, a piezoelectric displacement part, a piezoelectric displacement layer, a sound wave generating part, a vibration layer, a piezoelectric material layer, a piezoelectric composite layer, an electroactive layer, a piezoelectric material part, an electroactive part, a piezoelectric structure, a piezoelectric composite, or a piezoelectric ceramic composite, but is not limited to these terms.

[0097] For example, each of the first vibrating part 131 and the second vibrating part 132 may be made of a ceramic-based material capable of realizing a relatively high vibration, and / or may be made of a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure may have a piezoelectric and / or inverse piezoelectric effect and may be a plate-like structure having orientation. The perovskite crystal structure may be represented by the formula ABO3, where the A site is made of a divalent metal element and the B site is made of a tetravalent metal element. For example, in the formula ABO3, the A site and the B site may be cations and O may be anions. For example, the first vibrating part 131 and the second vibrating part 132 may include at least one of PbTiO3, PbZrO3, PbZrTiO3, BaTiO3, and SrTiO3, but are not limited thereto.

[0098] In the perovskite crystal structure, the position of the central ion, for example, Ti ion in the case of PbTiO3, fluctuates due to external stress or electric field, causing a change in polarization, which can generate a piezoelectric effect. For example, the perovskite crystal structure can generate a piezoelectric effect by changing from a cubic shape, which is a symmetric structure, to an asymmetric structure such as a tetragonal, orthorhombic, or rhombohedral shape, which is an asymmetric structure, due to external stress or magnetic field. Since the polarization is high at the morphotropic phase boundary of the tetragonal and rhombohedral structures, and the polarization can be easily rearranged, the perovskite crystal structure can have high piezoelectric properties.

[0099] According to an embodiment of the present specification, the inorganic material parts formed in each of the first vibrating part 131 and the second vibrating part 132 may include one or more of lead (Pb), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), niobium (Nb), magnesium (Mg), manganese (Mn), and indium (In), but are not limited thereto.

[0100] According to another embodiment of the present specification, the inorganic material portion of each of the first vibrating portion 131 and the second vibrating portion 132 may include, but is not limited to, a PZT (lead zirconate titanate)-based material including lead (Pb), zirconium (Zr), and titanium (Ti), or a PZNN (lead nickel zirconate niobate)-based material including lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb). According to another embodiment of the present specification, the inorganic material portion may include, but is not limited to, a PMN (lead magnesium niobate)-based material, a PNN (lead nickel niobate)-based material, a PZN (lead zirconate niobate)-based material, or a PIN (lead indium niobate)-based material. The PMN-based material may include lead (Pb), magnesium (Mg), and niobium (Nb), and may be, for example, Pb(Mg,Nb)O3. The PNN-based material may include lead (Pb), nickel (Ni), and niobium (Nb), and may be, for example, Pb(Ni,Nb)O3. The PIN-based material may include lead (Pb), indium (In), and niobium (Nb), and may be, for example, Pb(In,Nb)O3. According to another embodiment of the present specification, the inorganic material portion formed in each of the first vibrating part 131 and the second vibrating part 132 may include at least one of CaTiO3, BaTiO3, and SrTiO3 that does not include lead (Pb), but is not limited thereto.

[0101] According to another embodiment of the present specification, the inorganic material parts formed in each of the first vibrating part 131 and the second vibrating part 132 have a piezoelectric constant (d 33 In order to apply the vibration device to a large display panel or vibration member and to have sufficient vibration or piezoelectric characteristics, a high piezoelectric constant (d 33 For example, it is necessary to have a high piezoelectric constant (d 33), the inorganic material portion may include a PZT-based material (PbZrTiO3) as a main component, a softener dopant material doped in the A site (Pb), and a relaxor ferroelectric material doped in the B site (ZrTi).

[0102] The softener dopant material can improve the piezoelectric and / or dielectric properties of the inorganic material portion, for example, the piezoelectric constant (d 33 ) can be increased. The softener dopant material according to the embodiment of the present specification can include elements with a valence of +2 to +3. By including the softener dopant material in the PZT-based material (PbZrTiO3), a morphotropic phase boundary (MPB) can be formed, thereby improving the piezoelectric and dielectric properties. For example, the softener dopant material can include one or more of strontium (Sr), barium (Ba), lanthanum (La), neodymium (Nd), calcium (Ca), yttrium (Y), erbium (Er), and ytterbium (Yb). For example, the ions (Sr) of the softener dopant material doped in the PZT-based material (PbZrTiO3) can be increased. 2+ , B.A. 2+ , La 2+ , Nd 3+ , Ca 2+ , Y 3+ , Er 3+ , Yb 3+ ) replaces a portion of lead (Pb) in the PZT-based material (PbZrTiO3), and the amount of substitution can be 2 to 20 mol %. For example, if the amount of substitution is less than 2 mol % or more than 20 mol %, the perovskite crystal structure will break, and the electric coupling coefficient (kP) and piezoelectric constant (d 33 When a softener dopant material is substituted, a morphotropic phase boundary can be formed, and the phase boundary can have high piezoelectric and dielectric properties, so that a vibrating device having high piezoelectric and dielectric properties can be realized.

[0103] According to an embodiment of the present specification, the relaxor ferroelectric material doped in the PZT-based material (PbZrTiO3) can improve the electro-deformation properties of the inorganic material part. The relaxor ferroelectric material according to the embodiment of the present specification can include, but is not limited to, a PMN (lead magnesium niobate)-based material or a PNN (lead nickel niobate)-based material. The PMN-based material can include lead (Pb), magnesium (Mg), and niobium (Nb), and can be, for example, Pb(Mg,Nb)O3. The PNN-based material can include lead (Pb), nickel (Ni), and niobium (Nb), and can be, for example, Pb(Ni,Nb)O3. The PZN-based material can include lead (Pb), zirconium (Zr), and niobium (Nb), and can be, for example, Pb(Zr,Nb)O3. The PIN-based material may contain lead (Pb), indium (In), and niobium (Nb), for example, Pb(In,Nb)O3. For example, a relaxor ferroelectric material doped in a PZT-based material (PbZrTiO3) may have a zirconium (Zr) and titanium (Ti) partly substituted in the PZT-based material (PbZrTiO3) at a substitution amount of 5 to 25 mol%. For example, if the substitution amount is less than 5 mol% or more than 25 mol%, the perovskite crystal structure is cracked, and the electric coupling coefficient (kP) and piezoelectric constant (d 33 ) may decrease.

[0104] According to an embodiment of the present specification, the inorganic material portion formed in each of the first vibrating portion 131 and the second vibrating portion 132 may further include a donor material doped in the B site (ZrTi) of the PZT-based material (PbZrTiO3) to further improve the piezoelectric constant. For example, the donor material doped in the B site (ZrTi) may include elements with a valence of +4 to +6. For example, the donor material doped in the B site (ZrTi) may include tellurium (Te), germanium (Ge), uranium (U), niobium (Nb), tantalum (Ta), antimony (Sb), or tungsten (W).

[0105] According to the embodiment of the present specification, the second vibration part 132 has a large electric coupling coefficient (kP) and a high piezoelectric constant (d 33 ) The vibration direction of the second vibrating part 132 may vary depending on the crystal direction. For example, when the crystal direction of the second vibrating part 132 is the (001) crystal direction, the second vibrating part 132 has a high piezoelectric constant (d 33 ) vibration mode, and the vibrating member 100 can be vibrated in the thickness direction (or vertical direction) (Z-axis vibration or up-down vibration), so that an increase in sound pressure in the high frequency range can be induced. For example, when the crystal orientation of the second vibrating portion 132 is the (011) crystal orientation, a high piezoelectric constant (d 32 ) vibration mode, which can vibrate the vibrating member 100 in the lateral direction (X-axis vibration, left-right vibration, or transverse vibration), can induce an increase in sound pressure in the low frequency range.

[0106] According to the embodiment of the present specification, the second vibrating part 132 vibrating in the side direction (XY axis vibration) is configured on the first vibrating part 131 vibrating in the thickness direction (Z axis vibration), so that the sound in the low frequency range can be improved. By configuring the second vibrating part 132 having a (011) crystal orientation and reducing the area that the second vibrating part 132 occupies in the vibration device 130, the manufacturing cost of the vibration device 130 using the second vibrating part 132 can be reduced while improving the sound in the low frequency range.

[0107] 3A, the vibration device 130 according to the embodiment of the present specification may include a second vibration part 132 adjacent to the first vibration part 131. The second vibration part may be composed of a 2-1 vibration part 132-1 and a 2-2 vibration part 132-2. The first vibration part 131 may be disposed in the center of the vibration member 100. The second vibration part 132 may be disposed above and below the first vibration part 131. The second vibration part 132 may be disposed above and below the first vibration part 131 with the first vibration part 131 at the center. For example, the 2-1 vibration part 132-1 may be disposed above the first vibration part 131. For example, the 2-2 vibration part 132-2 may be disposed below the first vibration part 131. For example, the 2-1 vibration part 132-1 may be the second vibration part, and the 2-2 vibration part 132-2 may be the third vibration part. For example, the 2-1 vibration part 132-1 may be a first vibration part of the second vibration part 132, and the 2-2 vibration part 132-2 may be a second vibration part of the second vibration part 132. It is understood that the foregoing description provides examples and does not limit the scope of the present specification. As used herein, a reference to a first feature being adjacent to a second feature may be used to indicate that the first feature is adjacent to the second feature, e.g., laterally disposed in a direction parallel to the front surface of the vibrating member / display panel described herein. The 2-1 vibration part 132-1 may be disposed adjacent to a first side of the first vibration part 131, and the 2-2 vibration part 132-2 may be disposed adjacent to a second side of the first vibration part 131. The first side may be opposite the second side.

[0108] The thickness of each of the first vibrating part 131 and the second vibrating part 132 may be 0.1 mm to 0.3 mm, and the embodiment of the present specification is not limited thereto. As the thickness of the first vibrating part 131 and the second vibrating part 132 becomes smaller, the voltage (or net electric field) applied per thickness becomes larger, so that the vibration characteristics of the first vibrating part 131 and the second vibrating part 132 can be further improved. For example, when the thicknesses of the first vibrating part 131 and the second vibrating part 132 are 0.1 mm and 0.2 mm, respectively, and 10 V (volt) is applied, the magnitude of the electric field applied per thickness can be 100 V / mm and 50 V / mm, respectively. Therefore, the magnitude of the electric field of the first vibrating part 131 and the second vibrating part 132 with a thickness of 0.1 mm is about twice or more, and the sound pressure is improved by about 6 dB (decibel), so that the vibration characteristics can be further improved.

[0109] The second vibration part 132 is disposed above and below the first vibration part 131 with the first vibration part 131 at the center, so that it is possible to induce side vibration by the second vibration part 132. Since the second vibration part 132 includes the (011) crystal orientation, d 32 When the second vibrating portion 132 is elongated in the thickness direction (d 33 directional) versus horizontal (d 32 direction) ratio (d 32 / d 33 ). The second vibrating part 132 repeats contraction and expansion due to an external voltage, vibrating in opposite directions, for example, when the length of the XY axis expands, the length of the Z axis contracts. As a result, in the case of a vibrating part having a high aspect ratio, for example, in the horizontal / thickness direction, the length of the X axis and / or the length of the Y axis expand (or contract) by the aspect ratio, in contrast to the contraction (or expansion) in which the length of the Z axis decreases, so that the vibration characteristics of the second vibrating part 132 can be further improved. For example, when the horizontal / thickness direction is 5, the vibration characteristics of the second vibrating part 132 can be improved by about 5 times.

[0110] 3C, the ratio (a' / b') of the horizontal length (a') to the vertical length (b') of the second vibrating part 132, for example, the 2-1 vibrating part 132-1 and the 2-2 vibrating part 132-2, may be 5 or more, but is not limited thereto. As a result, the second vibrating part 132 has a high vibration displacement, so that the vibration characteristic of vibrating the vibrating member 100 is increased, and high sound pressure can be output in the low frequency range. For example, the horizontal length of the second vibrating part 132 may be 5 cm to 10 cm, but is not limited thereto.

[0111] Referring to FIG. 3B, the first vibrating portion 131 may have a rectangular shape, but the embodiments of the present specification are not limited thereto. As another example, the first vibrating portion 131 may be configured in a square shape, a rectangle shape, or a diamond shape. The vertical length (b) of the first vibrating portion 131 may be configured to be longer than the horizontal length (a). For example, the first vibrating portion 131 may be configured to have a thickness direction (d 33 Since the first vibrating portion 131 vibrates in two directions (directions), the larger the area (or the XY area), the more the vibration characteristics can be improved. Since the larger the area of ​​the first vibrating portion 131, the more the vibration characteristics can be improved, the more the sound pressure characteristics can be improved.

[0112] According to the embodiments of the present specification, since the second vibrating part 132 is arranged above and below the first vibrating part 131 with the first vibrating part 131 at the center, it is possible to provide a vibration device 130 that has sound pressure characteristics and / or acoustic characteristics in a full range sound band including the low frequency band by complementing the sound pressure characteristics and / or acoustic characteristics in the low frequency band. Furthermore, since the first vibrating part 131 is arranged closer to the center of the vibrating member 100 than the second vibrating part 132, it is possible to provide a vibration device 130 that can further improve the sound in the high frequency band.

[0113] 3D, 3E, and 3F show a vibration device according to embodiments of the present disclosure.

[0114] 3D-3F, a vibration device 130 according to another embodiment of the present specification may include a first vibration part 131 and a second vibration part 132. For example, the first vibration part 131 may be provided with a plurality of first vibration parts or may include a plurality of first vibration parts. For example, the second vibration part 132 may be provided with one or more second vibration parts or may include one or more second vibration parts. In one or more examples, the first vibration part 131 may include one or more first vibration parts. The plurality of first vibration parts may be different from the one or more second vibration parts. For example, one or more of the shape, size, material, material properties, or acoustic output properties of the plurality of second vibration parts may be different from the one or more first vibration parts.

[0115] 3D, the second vibrating part 132 may be disposed at the center of the vibrating member 100. For example, the first vibrating part 131 may be disposed above and below the second vibrating part 132. The first vibrating part 131 may be disposed above and below the second vibrating part 132 with the second vibrating part 132 as a reference. For example, the first vibrating part 131 may include a 1-1 vibrating part 131-1 and a 1-2 vibrating part 131-2. The thickness of each of the second vibrating part 132 and the first vibrating part 131 may be 0.1 mm to 0.3 mm, but the embodiments of the present specification are not limited thereto.

[0116] Referring to FIG. 3E, the second vibrating part 132 may have a rectangular shape, but is not limited thereto. As another example, the second vibrating part 132 may be configured in a square shape or a diamond shape. As shown in FIG. 3E, the vertical length (b) of the second vibrating part 132 may be configured to be longer than the horizontal length (a) of the second vibrating part 132. As another example, the vertical length (b) of the second vibrating part 132 may be the same as the horizontal length (a) of the second vibrating part 132.

[0117] 3F, the ratio (a' / b') of the horizontal length (a') to the vertical length (b') of the first vibrating portion 131 (e.g., the 1-1 vibrating portion 131-1 and the 1-2 vibrating portion 131-2) may be adjusted to 5 or more, but the embodiments herein are not limited thereto. As one or more embodiments, the vibrating portion 131-1 (or 131-2) shown in FIG. 3F may represent the vibrating portion 131-1 (or 131-2) shown in FIG. 3D.

[0118] According to the embodiment of the present specification, since the first vibrating part 131 is disposed above and below the second vibrating part 132 based on the second vibrating part 132, it is possible to complement the sound pressure characteristics and / or acoustic characteristics in the low frequency band. As a result, it is possible to provide a vibration device 130 having sound pressure characteristics and / or acoustic characteristics in the full range band including the low frequency band.

[0119] 4A to 4C are diagrams showing a vibration device according to another embodiment of the present specification.

[0120] 4A to 4C, a vibration device 130 according to another embodiment of the present specification may include a first vibration part 131 and a second vibration part 132. For example, the first vibration part 131 may be composed of at least one or more first vibration parts or may include at least one or more first vibration parts. For example, the second vibration part 132 may be composed of a plurality of second vibration parts or may include a plurality of second vibration parts. The first vibration part 131 and the second vibration part 132 are the same or substantially the same as the first vibration part 131 and the second vibration part 132 described with reference to FIGS. 1 to 3C, and therefore, a duplicate description thereof will be omitted or will be described briefly.

[0121] 4A, the first vibrating part 131 is disposed at the center of the vibrating member 100. For example, the second vibrating part 132 may be disposed above and below the first vibrating part 131. The second vibrating part 132 may be disposed above and below the first vibrating part 131 with the first vibrating part 131 at the center. For example, the second vibrating part may be composed of a 2-1 vibrating part 132-1 and a 2-2 vibrating part 132-2. The thickness of each of the first vibrating part 131 and the second vibrating part 132 may be 0.1 mm to 0.3 mm, but the embodiments of the present specification are not limited thereto.

[0122] The 2-1 vibration part 132-1 may be the second vibration part, and the 2-2 vibration part 132-2 may be the third vibration part, and this number does not limit the contents of this specification. The 2-1 vibration part 132-1 may be the second vibration part, and the 2-2 vibration part 132-2 may be the third vibration part. It is understood that the above description provides an example and does not limit the scope of this specification. As used herein, a reference to the nm vibration part can be used to refer to an mth part or sub-part or part or example of the n vibration part. In one or more embodiments, n can be a natural number greater than or equal to 2. In one or more embodiments, m can be a natural number.

[0123] 4B, the first vibrating part 131 may be configured to have a circular shape. The diameter (a) of the first vibrating part may be 5 cm to 12 cm, but is not limited thereto.

[0124] 4C, the ratio (a' / b') of the horizontal length (a') to the vertical length (b') of the second vibrating part 132, for example, the 2-1 vibrating part 132-1 and the 2-2 vibrating part 132-2, may be configured to be 5 or more, but is not limited thereto. As a result, the second vibrating part 132 has a high vibration displacement, so that the vibration characteristic of vibrating the vibrating member 100 is increased, and high sound pressure can be output in the low frequency range.

[0125] According to the embodiments of the present specification, since the second vibrating parts 132 are arranged above and below the first vibrating part 131 with the first vibrating part 131 at the center, it is possible to provide a vibration device 130 that has sound pressure characteristics and / or acoustic characteristics in a full range including the low frequency band by complementing the sound pressure characteristics and / or acoustic characteristics in the low frequency band. Since the first vibrating part 131 is arranged closer to the center of the vibrating member 100 than the second vibrating part 132, it is possible to provide a vibration device 130 that can further improve the acoustics in the high frequency band.

[0126] 5A to 5C are diagrams showing a vibration device according to another embodiment of the present specification.

[0127] 5A to 5C, a vibration device 130 according to another embodiment of the present specification may include a first vibration part 131 and a second vibration part 132. For example, the first vibration part 131 may be composed of at least one or more first vibration parts or may include at least one or more first vibration parts. For example, the second vibration part 132 may be composed of a plurality of second vibration parts or may include a plurality of second vibration parts. The first vibration part 131 and the second vibration part 132 are the same or substantially the same as the first vibration part 131 and the second vibration part 132 described with reference to FIGS. 1 to 3C, and therefore, a duplicate description thereof will be omitted or will be described briefly.

[0128] Referring to FIG. 5A, the first vibration part 131 may be composed of at least one or more first vibration parts or may include at least one or more first vibration parts. The first vibration part 131 may be composed of a quadrangle shape. As another example, the first vibration part 131 may be composed of a square shape, a rectangular shape, or a diamond shape. For example, the first vibration part 131 may include a 1-1 vibration part 131-1, a 1-2 vibration part 131-2, a 1-3 vibration part 131-3, and a 1-4 vibration part 131-4. The second vibration part 132 may be composed of a plurality of second vibration parts or may include a plurality of second vibration parts. For example, the second vibration part may be composed of a 2-1 vibration part 132-1 and a 2-2 vibration part 132-2. The second vibration part 132 may be disposed in the center of the vibration member 100. For example, the 2-1 vibration part 132-1 and the 2-2 vibration part 132-2 can be disposed in the center of the vibration member 100. The first vibration part 131 can be disposed above and below the second vibration part 132. For example, the first vibration part 131 can be disposed above and below the second vibration part 132 with the second vibration part 132 at the center. The 1-1 vibration part 131-1 and the 1-2 vibration part 131-2 can be disposed above the second vibration part 132. For example, the 1-1 vibration part 131-1 and the 1-2 vibration part 131-2 can be disposed above the 2-1 vibration part 132-1. The 1-3 vibration part 131-3 and the 1-4 vibration part 131-4 can be disposed below the second vibration part 132. For example, the 1-3 vibration part 131-3 and the 1-4 vibration part 131-4 can be disposed below the 2-2 vibration part 132-2. The thickness of each of the first vibrating portion 131 and the second vibrating portion 132 may be 0.1 mm to 0.3 mm, but is not limited to this.

[0129] The 1-1 vibration part 131-1 may be the first vibration part, the 1-2 vibration part 131-2 may be the second vibration part, the 1-3 vibration part 131-3 may be the third vibration part, the 1-4 vibration part 131-4 may be the fourth vibration part, the 2-1 vibration part 132-1 may be the fifth vibration part, and the 2-2 vibration part 132-2 may be the sixth vibration part. For example, the 1-1 vibration part 131-1 may be the first vibration part of the first vibration part 131, the 1-2 vibration part 131-2 may be the second vibration part of the first vibration part 131, the 1-3 vibration part 131-3 may be the third vibration part of the first vibration part 131, and the 1-4 vibration part 131-4 may be the fourth vibration part of the first vibration part 131. It is understood that the above description provides an example and does not limit the scope of the present specification.

[0130] Referring to FIG. 5B, the first vibrating part 131 may have a rectangular shape, but is not limited thereto. As another example, the first vibrating part 131 may be configured as a square or a diamond. The vertical length (b) of the first vibrating part 131 may be the same as the horizontal length (a). As one or more embodiments, the first vibrating part 131 shown in FIG. 5B may be any one of the vibrating parts 131-1 to 131-4 shown in FIG. 5A.

[0131] 5C, the ratio (a' / b') of the horizontal length (a') to the vertical length (b') of the second vibrating part 132, for example, the 2-1 vibrating part 132-1 and the 2-2 vibrating part 132-2, may be configured to be 5 or more, but is not limited thereto. As a result, the second vibrating part 132 has a high vibration displacement, so that the vibration characteristic for vibrating the vibrating member 100 is increased, and high sound pressure can be output in the low frequency range.

[0132] In the vibration device 130 according to the embodiment of the present specification, the 1-1 vibration unit 131-1, the 1-2 vibration unit 131-2, the 1-3 vibration unit 131-3, the 1-4 vibration unit 131-4, the 2-1 vibration unit 132-1, and the 2-2 vibration unit 132-2 are driven individually by applying driving signals (or sound signals) independently, so that the driving of each vibration unit can be set according to the desired sound (treble or bass). For example, when realizing a sound in the treble range, the voltage applied to the first vibration unit 131 can be increased and the voltage applied to the second vibration unit 132 can be decreased to realize a vibration device 130 in which the treble range is further emphasized (or strengthened) in the same vibration device 130. As another example, when realizing low-frequency sound, the voltage applied to the first vibrating part 131 can be lowered and the voltage applied to the second vibrating part 132 can be increased to realize a vibration device 130 in which the low-frequency range is more emphasized (or strengthened) using the same vibration device 130.

[0133] According to the embodiment of the present specification, since the first vibrating part 131 is arranged above and below the second vibrating part 132 with the second vibrating part 132 at the center, it is possible to provide a vibration device 130 having sound pressure characteristics and / or acoustic characteristics in a full range sound band including the low frequency band by complementing the sound pressure characteristics and / or acoustic characteristics in the low frequency band. In addition, since the area of ​​the first vibrating part 131 is larger than the area of ​​the second vibrating part 132, it is possible to provide a vibration device 130 that can further improve the acoustics in the high frequency band.

[0134] 6A to 6C are diagrams showing a vibration device according to another embodiment of the present specification.

[0135] 6A to 6C, a vibration device 130 according to another embodiment of the present specification may include a first vibration part 131 and a second vibration part 132. The first vibration part 131 and the second vibration part 132 are the same or substantially the same as the first vibration part 131 and the second vibration part 132 described with reference to FIGS. 1 to 3C, and therefore, a duplicate description thereof will be omitted or will be described briefly.

[0136] Referring to FIG. 6A, the first vibration part 131 may be configured with at least one or more first vibration parts or may include at least one or more first vibration parts. The first vibration part 131 may be configured in a circular shape. For example, the first vibration part 131 may include a 1-1 vibration part 131-1, a 1-2 vibration part 131-2, a 1-3 vibration part 131-3, and a 1-4 vibration part 131-4. The second vibration part 132 may be configured with a plurality of second vibration parts or may include a plurality of second vibration parts. For example, the second vibration part may be configured with a 2-1 vibration part 132-1 and a 2-2 vibration part 132-2. The second vibration part 132 may be disposed in the center of the vibration member 100. For example, the 2-1 vibration part 132-1 and the 2-2 vibration part 132-2 may be disposed in the center of the vibration member 100. The first vibration part 131 may be disposed above and below the second vibration part 132. For example, the first vibration part 131 may be disposed above and below the second vibration part 132 with the second vibration part 132 at the center. The 1-1 vibration part 131-1 and the 1-2 vibration part 131-2 may be disposed above the second vibration part 132. For example, the 1-1 vibration part 131-1 and the 1-2 vibration part 131-2 may be disposed above the 2-1 vibration part 132-1. The 1-3 vibration part 131-3 and the 1-4 vibration part 131-4 may be disposed above the second vibration part 132. For example, the 1-3 vibration part 131-3 and the 1-4 vibration part 131-4 may be disposed below the 2-2 vibration part 132-2. The thickness of each of the first vibration part 131 and the second vibration part 132 may be 0.1 mm to 0.3 mm, but is not limited thereto.

[0137] The 1-1 vibration part 131-1 may be the first vibration part, the 1-2 vibration part 131-2 may be the second vibration part, the 1-3 vibration part 131-3 may be the third vibration part, the 1-4 vibration part 131-4 may be the fourth vibration part, the 2-1 vibration part 132-1 may be the fifth vibration part, and the 2-2 vibration part 132-2 may be the sixth vibration part. It is understood that the foregoing description provides examples and does not limit the scope of the present specification.

[0138] The first vibrating part 131 may be configured to have a circular shape. The diameter (a) of the first vibrating part may be 5 cm to 12 cm, but is not limited thereto.

[0139] 6C, the ratio (a' / b') of the horizontal length (a') to the vertical length (b') of the second vibrating part 132, for example, the 2-1 vibrating part 132-1 and the 2-2 vibrating part 132-2, may be configured to be 5 or more, but is not limited thereto. As a result, the second vibrating part 132 has a high vibration displacement, and therefore the vibration characteristic of vibrating the vibrating member 100 is increased, and high sound pressure can be output in the low frequency range.

[0140] In the vibration device 130 according to the embodiment of the present specification, the 1-1 vibration unit 131-1, the 1-2 vibration unit 131-2, the 1-3 vibration unit 131-3, the 1-4 vibration unit 131-4, the 2-1 vibration unit 132-1, and the 2-2 vibration unit 132-2 are individually driven, so that the driving of each vibration unit can be set according to a desired sound (high frequency band or low frequency band). For example, when realizing a high frequency band sound, the driving of each vibration unit can be set according to a desired sound (high frequency band or low frequency band). By increasing the voltage applied to the first vibrating unit 131 and decreasing the voltage applied to the second vibrating unit 132, a vibration device 130 in which the treble range is further emphasized (or strengthened) can be realized using the same vibration device 130. As another example, when realizing a low-frequency sound, the voltage applied to the first vibrating unit 131 can be decreased and the voltage applied to the second vibrating unit 132 can be increased to realize a vibration device 130 in which the low-frequency range is further emphasized (or strengthened) using the same vibration device 130.

[0141] According to the embodiment of the present specification, since the first vibrating part 131 is arranged above and below the second vibrating part 132 with the second vibrating part 132 at the center, it is possible to provide a vibration device 130 having sound pressure characteristics and / or acoustic characteristics in a full range sound band including the low frequency band by complementing the sound pressure characteristics and / or acoustic characteristics in the low frequency band. In addition, since the area of ​​the first vibrating part 131 is larger than the area of ​​the second vibrating part 132, it is possible to provide a vibration device 130 that can further improve the acoustics in the high frequency band.

[0142] FIG. 1 illustrates a vibration device according to an embodiment of the present disclosure.

[0143] Referring to FIG. 7, a vibration device 130 according to an embodiment of the present specification may include a vibration layer, a first electrode unit, and a second electrode unit. The vibration layer 131a may be a vibration layer of each of the first vibration unit 131 and the second vibration unit 132. The first electrode unit and the second electrode unit may be a first electrode unit 131b and a second electrode unit 131c of the first vibration unit 131. The first electrode unit and the second electrode unit may be a first electrode unit 132b and a second electrode unit 132c of the second vibration unit 132. In the following, the vibration layer 131a, the first electrode unit 131b, and the second electrode unit 131c of the first vibration unit 131 will be described as an example. The description of the vibration layer 131a, the first electrode unit 131b, and the second electrode unit 131c may be applied to the vibration layer 132a, the first electrode unit 132b, and the second electrode unit 132c of the second vibration unit 132 in the same or substantially the same manner.

[0144] The first electrode unit 131b may be disposed on a first surface (or an upper surface) of the vibration layer 131a. For example, the first electrode unit 131b may be electrically connected to the first surface of the vibration layer 131a. For example, the first electrode unit 131b may have a common electrode (or a single electrode) (or may have a shape of a common electrode) disposed on the entire first surface of the vibration layer 131a of the first vibration unit 131. For example, the first electrode unit 131b may have substantially the same shape as the vibration layer 131a, but is not limited thereto.

[0145] The first electrode unit 131b according to the embodiment of the present specification may 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 may include, but is not limited to, one or more of ITO (indium tin oxide) or IZO (indium lead oxide). The opaque conductive material may include, but is not limited to, one or more of aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), or magnesium (Mg), or an alloy thereof.

[0146] The second electrode unit 131c may be disposed on a surface different from (or opposite to) the first surface of the vibration layer 131a. For example, the second electrode unit 131c may be disposed on a second surface (or back surface) different from (or opposite to) the first surface of the vibration layer 131a. For example, the second electrode unit 131c may be electrically coupled to the second surface of the vibration layer 131a of the first vibration unit 131. For example, the second electrode unit 131c may have a common electrode (or a single electrode) (or may have the shape of a common electrode) disposed on the entire second surface of the vibration layer 131a. For example, the second electrode unit 131c may have a shape similar to that of the vibration layer 131a, but is not limited thereto.

[0147] The second electrode unit 131c according to embodiments of the present disclosure may be made of a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode unit 131c may be made of the same material as the first electrode unit 131b, but is not limited thereto. In other embodiments of the present disclosure, the second electrode unit 131c may be made of a different material than the first electrode unit 131b.

[0148] The vibrating layer 131a can be polarized (poled) by a constant voltage applied to the first electrode portion 131b and the second electrode portion 131c in a constant temperature atmosphere or a temperature atmosphere that changes from high temperature to room temperature, but is not limited to this. For example, the vibrating layer 131a can vibrate by alternately repeating contraction and expansion due to the inverse piezoelectric effect caused by an acoustic signal (or voice signal) applied from the outside to the first electrode portion 131b and the second electrode portion 131c. For example, the vibrating layer 131a can be polarized (poled) in the vertical direction (d 33 ) and lateral vibration (d 32 ) to vibrate the vibration member 100. The vibration layer 131a of the first vibrating section 131 is vibrated in the vertical direction (d 33 ) to vibrate the vibration member 100. The vibration layer 132a of the second vibrating section 132 is vibrated in the lateral direction (d 32) can vibrate the vibrating member 100. Due to the contraction and expansion of the vibrating layer 130a in the vertical and / or lateral directions, the displacement of the vibrating member (or the diaphragm, or the vibrating object) can be increased, thereby further improving the vibration characteristics.

[0149] The vibration device 130 according to the embodiment of the present specification may further include a first cover member and a second cover member. The first cover member and the second cover member may be the first cover member 131d and the second cover member 131e of the first vibration part 131. The first cover member and the second cover member may be the first cover member 131d and the second cover member 131e of the second vibration part 132. The first cover member 131d and the second cover member 131e of the first vibration part 131 are applied as an example. The description of the first cover member 131d and the second cover member 131e may be applied to the first cover member 132d and the second cover member 132e of the second vibration part 132 in the same or substantially the same manner.

[0150] The first cover member 131d can be disposed on a first surface of the vibration layer 131a. For example, the first cover member 1301 can be disposed on the first electrode portion 131b. For example, the first cover member 131d can be configured to cover the first electrode portion 131b. Thus, the first cover member 131d can protect the first electrode portion 131b.

[0151] The second cover member 131e can be disposed on the second surface of the vibration portion 131a. For example, the second cover member 131e can be disposed on the second electrode portion 131c. For example, the second cover member 131e can be configured to cover the second electrode portion 131c. Thus, the second cover member 131e can protect the second electrode portion 131c.

[0152] Each of the first cover member 131d and the second cover member 131e according to the embodiment of the present specification may include one or more materials among, but not limited to, plastic, fiber, and wood. For example, each of the first cover member 131d and the second cover member 131e may include the same or different materials. For example, the first cover member 131d and the second cover member 131e may be one or more of, but not limited to, a polyimide film, a polyethylene terephthalate film, or a polyethylene naphthalate film.

[0153] At least one of the first cover member 131d and the second cover member 131e according to other embodiments of the present specification may include an adhesive member. For example, at least one of the first cover member 131d and the second cover member 131e may include an adhesive member bonded or adhered to the vibration layer 131a, and a protective member (or a peeling member) that covers or protects the adhesive member. For example, the adhesive member may include an electrically insulating material that is compressible and recoverable while having adhesive properties. For example, the first cover member 131d may include an adhesive member bonded or adhered to the vibration layer 131a, and a protective member (or a peeling member) that covers or protects the adhesive member.

[0154] The first cover member 131d according to the embodiment of the present specification may be connected or bonded to the first electrode portion 131b via the first adhesive layer 131f. For example, the first cover member 131d may be connected or bonded to the first electrode portion 131b by a film lamination process using the first adhesive layer 131f as an intermediary.

[0155] The second cover member 131e according to the embodiment of the present specification may be connected or bonded to the second electrode portion 131c via the second adhesive layer 131g. For example, the second cover member 131e may be connected or bonded to the second electrode portion 131c by a film lamination process using the second adhesive layer 131g as an intermediary. The description of the first adhesive layer 131f and the second adhesive layer 131g may also be applied to the first adhesive layer 132f and the second adhesive layer 132g of the second vibrating portion 132.

[0156] The first adhesive layer 131f may be disposed between the first electrode portion 131b and the first cover member 131d. The second adhesive layer 131g may be disposed between the second electrode portion 131c and the second cover member 131e. For example, the first adhesive layer 131f and the second adhesive layer 131g may be configured between the first cover member 131d and the second cover member 131e so as to encase the vibration layer 131a, the first electrode portion 131b, and the second electrode portion 131c. For example, the first adhesive layer 131f and the second adhesive layer 131g may be configured between the first cover member 131d and the second cover member 131e so as to completely encase the vibration layer 131a, the first electrode portion 131b, and the second electrode portion 131c. For example, the vibration portion 130a and the first and second electrode portions 130b and 131c may be embedded or built in between the first and second adhesive layers 131f and 131g.

[0157] Each of the first adhesive layer 131f and the second adhesive layer 131g according to the embodiment of the present specification may include an electrically insulating material that is compressible and resilient while having adhesiveness. For example, each of the first adhesive layer 131f and the second adhesive layer 131g may include, but is not limited to, an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin.

[0158] Either the first cover member 131d or the second cover member 131e can be attached or coupled to the vibrating member (or the diaphragm, or the vibrating object) via a connecting member.

[0159] According to an embodiment of the present specification, any one of the first cover member 131d and the second cover member 131e may be attached or coupled to the vibrating member (or the diaphragm, or the vibrating object) via a connecting member. For example, as described with reference to FIGS. 1 and 2, any one of the first cover member 131d and the second cover member 131e may be attached or coupled to the vibrating member 100 via a connecting member 150.

[0160] A method for manufacturing the second vibrating part 132 according to an embodiment of the present specification will be described below.

[0161] The second vibrating part 132 may be formed by a solid state crystal growth method, but is not limited thereto. For example, the solid state crystal growth method may be a method in which a powder of ceramic or the like is mixed, a single crystal seed is attached, and the polycrystal is grown into a single crystal through a sintering process. For example, the single crystal seed may be BaTixZr(1-x)O3, but is not limited thereto. To explain this method, a powder of ceramic or the like is mixed, crushed, and sintered. The sintering temperature is 800°C, but is not limited thereto. Then, a secondary raw material is mixed and crushed. For example, the secondary raw material may be a lead (Pb) compensation raw material, but is not limited thereto. Then, a pellet (grain) is made and sintered. Then, the growth of the mixture is induced using a seed template (e.g., polycrystal), and crystal growth and lead (Pb) compensation are performed to manufacture the second vibrating part 132. The crystal growth and lead (Pb) compensation can proceed at temperatures of 900° C. or more for 200 hours or more, but is not limited thereto.

[0162] The second vibrating part 132 according to another embodiment of the present specification may be formed by the Bridgman method. For example, the Bridgman method may be a method in which a powder containing ceramics or the like is melted into a liquid state at a high temperature, and then a single crystal is grown from a small single crystal nucleus. To explain this method, ceramics or other powders are mixed and crushed, and then melted. The melting temperature may be 1300°C to 1700°C, but is not limited thereto. Then, the second vibrating part 132 is manufactured by growing a single crystal by inducing crystallization of the molten material while lowering the temperature. The crystallization temperature may be 800°C to 1400°C, but is not limited thereto.

[0163] Figure 8A is a diagram showing a vibration device according to another embodiment of the present disclosure, and Figure 8B is a cross-sectional view taken along line BB' shown in Figure 8A.

[0164] 8A and 8B, a vibration device 130 according to another embodiment of the present specification may include a first vibration part 131 and a second vibration part 132. The first vibration part 131 and the second vibration part 132 are the same as the first vibration part 131 and the second vibration part 132 described with reference to FIGS. 1 to 3C, and therefore, a duplicate description thereof will be omitted or will be described briefly.

[0165] The vibration device according to other embodiments of the present disclosure may further include a partition.

[0166] The partition according to the embodiment of the present specification may include a first partition member 701, a second partition member 705, and a third partition member 706. The first partition member 701 (or the first enclosure) may surround the first vibration part 131. The second partition member 705 and the third partition member 706 may surround the second vibration part 132. For example, the second partition member 705 (or the second enclosure) may surround the 2-1 vibration part 132-1. For example, the third partition member 706 (or the third enclosure) may surround the 2-2 vibration part 132-2. The first vibration part 131 may be configured in a rectangular shape.

[0167] The first to third partition members 701, 705, and 706 may be air gaps or spaces in which sound is generated when the vibrating member 100 is vibrated by the first vibrating portion 131 and the second vibrating portion 132. For example, the first to third partition members 701, 705, and 706 can block sound pressure interference between the first vibrating portion 131 and the second vibrating portion 132, and can reinforce the sound pressure characteristics of each of the first vibrating portion 131 and the second vibrating portion 132 to improve the sound pressure characteristics. For example, the first partition member 701 can block sound pressure interference between the first vibrating portion 131 and the 2-1 vibrating portion 132-1, and between the first vibrating portion 131 and the 2-2 vibrating portion 132-2. For example, the second partition member 705 can block sound pressure interference between the 2-1 vibrating portion 132-1 and the first vibrating portion 131. For example, the third partition member 706 can block sound pressure interference between the 2-2 vibrating part 132-2 and the first vibrating part 131. The first partition member 701 can limit (or define) the vibration region (or vibration area) of the vibrating member 100 by the first vibrating part 131. The second partition member 705 can limit (or define) the vibration region (or vibration area) of the vibrating member 100 by the second vibrating part 132, for example, the 2-1 vibrating part 132-1. The third partition member 706 can limit (or define) the vibration region (or vibration area) of the vibrating member 100 by the second vibrating part 132, for example, the 2-2 vibrating part 132-2. The first to third partition members 701, 705, and 706 can be expressed as sound blocking members, sound separating members, space separating members, enclosures, baffles, or the like, but are not limited thereto.

[0168] For example, the first to third partition members 701, 705, and 706 may be made of a material having elasticity that can be compressed to a certain extent. For example, the first to third partition members 701, 705, and 706 may be made of one or more polyurethane or polyolefin materials, but are not limited thereto. In another embodiment of the present specification, the first to third partition members 701, 705, and 706 may be made of a single-sided tape, a single-sided foam tape, a double-sided tape, or a double-sided foam tape, etc.

[0169] 8B, the first vibration part 131 may be disposed in the center of the vibration member 100, and the plurality of second vibration parts 132-1, 132-2 may be disposed on both sides of the first vibration part 131. The first vibration part 131 and the plurality of second vibration parts 132-1, 132-2 are shown in the vibration device 130 of FIGS. 3A to 3C as an example, but are not limited thereto. For example, the first vibration part 131 and the plurality of second vibration parts 132-1, 132-2 may be applied in the same or substantially the same manner as in FIGS. 4A to 6C.

[0170] 8B, each of the first vibrating part 131 and the plurality of second vibrating parts 132-1 and 132-2 may include the vibrating layer, the first electrode part, and the second electrode part described in Fig. 7. Also, each of the first vibrating part 131 and the plurality of second vibrating parts 132-1 and 132-2 may include the first cover member, the second cover member, the first adhesive layer, and the second adhesive layer described in Fig. 7. Therefore, a duplicated description will be omitted.

[0171] According to the embodiments of the present specification, a partition member is configured to surround each of the first vibrating part 131 and the second vibrating part 132, so that sound pressure interference between the first vibrating part 131 and the second vibrating part 132 can be blocked and the sound pressure characteristics of each of the first vibrating part 131 and the second vibrating part 132 can be reinforced to improve the sound pressure characteristics.

[0172] 9A to 9C are diagrams showing a vibration device according to another embodiment of the present specification.

[0173] 9A to 9C, a vibration device according to another embodiment of the present specification may further include a partition. The description of the partition (or partition member) described with reference to Figs. 8A and 8B may be applied to Figs. 9A to 9C in the same or substantially the same manner.

[0174] Referring to FIG. 9A, the first vibration part 131 may be configured in a circular shape. For example, the second vibration part 132 may include a 2-1 vibration part 132-1 and a 2-2 vibration part 132-2. The second vibration part may be configured with the 2-1 vibration part 132-1 and the 2-2 vibration part 132-2. The first vibration part 131 may be disposed in the center of the vibration member 100. The second vibration part 132 may be disposed above and below the first vibration part 131. The second vibration part 132 may be disposed above and below the first vibration part 131 with the first vibration part 131 at the center. For example, the 2-1 vibration part 132-1 may be disposed above the first vibration part 131. For example, the 2-2 vibration part 132-2 may be disposed below the first vibration part 131.

[0175] A partition according to another embodiment of the present specification may include a first partition member 701, a second partition member 705, and a third partition member 706. The first partition member 701 (or the first enclosure) may surround the first vibration part 131. The second partition member 705 and the third partition member 706 (or the third enclosure) may surround the second vibration part 132. For example, the second partition member 705 (or the second enclosure) may surround the 2-1 vibration part 132-1. For example, the third partition member 706 (or the third enclosure) may surround the 2-2 vibration part 132-2.

[0176] For example, the first partition member 701 can block sound pressure interference between the first vibration part 131 and the 2-1 vibration part 132-1, and between the first vibration part 131 and the 2-2 vibration part 132-2. For example, the second partition member 705 can block sound pressure interference between the 2-1 vibration part 132-1 and the first vibration part 131. For example, the third partition member 706 can block sound pressure interference between the 2-2 vibration part 132-2 and the first vibration part 131. The first partition member 701 can limit (or define) a vibration region (or vibration area) of the vibration member 100 by the first vibration part 131. The second partition member 705 can limit (or define) a vibration region (or vibration area) of the vibration member 100 by the second vibration part 132, for example, the 2-1 vibration part 132-1. The third partition member 706 can limit (or define) the vibration region (or vibration area) of the vibration member 100 caused by the second vibrating portion 132, for example, the 2-2 vibrating portion 132-2.

[0177] Referring to FIG. 9B, the first vibrating part 131 may be configured in a quadrangle shape. As another example, the first vibrating part 131 may be configured in a square shape, a rectangle shape, or a rhombus shape. For example, the first vibrating part 131 may include a 1-1 vibrating part 131-1, a 1-2 vibrating part 131-2, a 1-3 vibrating part 131-3, and a 1-4 vibrating part 131-4. The second vibrating part 132 may be configured in a plurality of parts. For example, the second vibrating part may be configured with a 2-1 vibrating part 132-1 and a 2-2 vibrating part 132-2. The second vibrating part 132 may be disposed in the center of the vibrating member 100. For example, the 2-1 vibrating part 132-1 and the 2-2 vibrating part 132-2 may be disposed in the center of the vibrating member 100. The first vibrating part 131 may be disposed above and below the second vibrating part 132. For example, the first vibrating section 131 may be disposed above and below the second vibrating section 132 with the second vibrating section 132 at the center. The 1-1 vibrating section 131-1 and the 1-2 vibrating section 131-2 may be disposed above the second vibrating section 132. For example, the 1-1 vibrating section 131-1 and the 1-2 vibrating section 131-2 may be disposed above the 2-1 vibrating section 132-1. The 1-3 vibrating section 131-3 and the 1-4 vibrating section 131-4 may be disposed below the second vibrating section 132. For example, the 1-3 vibrating section 131-3 and the 1-4 vibrating section 131-4 may be disposed below the 2-2 vibrating section 132-2.

[0178] A partition according to another embodiment of the present specification may include a first partition member 701, a second partition member 705, and a fourth partition member 702. The first partition member 701 (or a first enclosure) may surround the first vibration part 131. For example, the first partition member 701 may surround the 1-1 vibration part 131-1 and the 1-2 vibration part 131-2. The second partition member 705 (or a second enclosure) may surround the second vibration part 132. For example, the second partition member 705 may surround the 2-1 vibration part 132-1 and the 2-2 vibration part 132-2. The fourth partition member 702 (or a fourth enclosure) may surround the first vibration part 131. For example, the fourth partition member 702 may surround the 1-3 vibration part 131-3 and the 1-4 vibration part 131-4.

[0179] For example, the first partition member 701 can block sound pressure interference between the 2-1 vibration part 132-1 and the 2-2 vibration part 132-2 and the 1-1 vibration part 131-1 and the 1-2 vibration part 131-2. For example, the second partition member 705 can block sound pressure interference between the 2-1 vibration part 132-1 and the 2-2 vibration part 132-2 and the 1-1 vibration part 131-1 and the 1-2 vibration part 131-2, and between the 2-1 vibration part 132-1 and the 2-2 vibration part 132-2 and the 1-3 vibration part 131-3 and the 1-4 vibration part 131-4. For example, the fourth partition member 702 can block sound pressure interference between the 2-1 vibration part 132-1 and the 2-2 vibration part 132-2 and the 1-3 vibration part 131-3 and the 1-4 vibration part 131-4. The first partition member 701 can limit (or define) the vibration region (or vibration area) of the vibration member 100 by the first vibrating part 131, for example, the 1-1 vibrating part 131-1 and the 1-2 vibrating part 131-2. The second partition member 705 can limit (or define) the vibration region (or vibration area) of the vibration member 100 by the second vibrating part 132, for example, the 2-1 vibrating part 132-1 and the 2-2 vibrating part 132-2. The fourth partition member 702 can limit (or define) the vibration region (or vibration area) of the vibration member 100 by the first vibrating part 131, for example, the 1-3 vibrating part 131-3 and the 1-4 vibrating part 131-4.

[0180] Referring to FIG. 9C, the first vibration part 131 may be composed of at least one or more first vibration parts or may include at least one or more first vibration parts. The first vibration part 131 may be configured in a circular shape. For example, the first vibration part 131 may include a 1-1 vibration part 131-1, a 1-2 vibration part 131-2, a 1-3 vibration part 131-3, and a 1-4 vibration part 131-4. The second vibration part 132 may be composed of a plurality of second vibration parts or may include a plurality of second vibration parts. For example, the second vibration part may be composed of a 2-1 vibration part 132-1 and a 2-2 vibration part 132-2. The second vibration part 132 may be disposed in the center of the vibration member 100. For example, the 2-1 vibration part 132-1 and the 2-2 vibration part 132-2 may be disposed in the center of the vibration member 100. The first vibration part 131 may be disposed above and below the second vibration part 132. For example, the first vibration part 131 may be disposed above and below the second vibration part 132 with the second vibration part 132 at the center. The 1-1 vibration part 131-1 and the 1-2 vibration part 131-2 may be disposed above the second vibration part 132. For example, the 1-1 vibration part 131-1 and the 1-2 vibration part 131-2 may be disposed above the 2-1 vibration part 132-1. The 1-3 vibration part 131-3 and the 1-4 vibration part 131-4 may be disposed below the second vibration part 132. For example, the 1-3 vibration part 131-3 and the 1-4 vibration part 131-4 may be disposed below the 2-2 vibration part 132-2.

[0181] A partition according to another embodiment of the present specification may include a first partition member 701, a second partition member 705, and a fourth partition member 702. The description of the first partition member 701, the second partition member 705, and the fourth partition member 702 is the same or substantially the same as that described with reference to FIG. 9B, and therefore, a duplicate description thereof will be omitted.

[0182] According to the embodiments of the present specification, by constructing a partition member surrounding the first vibrating part 131 and the second vibrating part 132, it is possible to block sound pressure interference between the first vibrating part 131 and the second vibrating part 132, and to reinforce the sound pressure characteristics of each of the first vibrating part 131 and the second vibrating part 132, thereby improving the sound pressure characteristics.

[0183] Fig. 10 is a diagram showing an apparatus according to another embodiment of the present specification. Fig. 10 is another cross-sectional view taken along line AA' shown in Fig. 1. Fig. 10 is a diagram showing a vibration device according to another embodiment of the present specification.

[0184] 10 and 11, in a device according to another embodiment of the present specification, the rear surface (or back surface) of the vibrating member 100 or the display panel may include a first region (or first rear region) (A1) and a second region (or second rear region) (A2). For example, on the rear surface of the vibrating member 100 or the display panel, the first region (A1) may be the left rear region, and the second region (A2) may be the right rear region. The first region (A1) and the second region (A2) may be symmetrical about the center line (CL) of the vibrating member 100 or the display panel in the first direction (X), but are not limited thereto. For example, each of the first region (A1) and the second region (A2) may overlap with the display region of the display panel when the vibrating member 100 is a display panel.

[0185] The vibration device 130 according to other embodiments of the present specification may include a first vibration device 137 and a second vibration device 138 disposed on the rear surface of the vibration member 100 or the display panel. For example, the first vibration device 137 may be a first vibration generating device, a first displacement device, a first sound generating device, a first sound generating device, etc., and is not limited to the terms. For example, the second vibration device 138 may be a second vibration generating device, a second displacement device, a second sound generating device, a second sound generating device, etc., and is not limited to the terms.

[0186] The first vibrating device 137 may be disposed in the first region (A1) of the vibrating member 100 or the display panel. For example, the first vibrating device 210-1 may be disposed in the center of the first region (A1) of the vibrating member 100 or the display panel when the first direction (X) is taken as a reference. As another example, the first vibrating device 137 may be disposed so as to be biased toward the center or the end side (or periphery) in the first region (A1) of the vibrating member 100 or the display panel when the first direction (X) is taken as a reference. The first vibrating device 137 according to the embodiment of the present specification can generate a first vibration sound or generate a first haptic feedback in the first region (A1) of the vibrating member 100 or the display panel by vibrating the first region (A1) of the vibrating member 100 or the display panel. For example, the first vibrating device 137 according to the embodiment of the present specification may generate a first vibration sound or generate a first haptic feedback in the first region (A1) of the vibrating member 100 or the display panel by directly vibrating the first region (A1) of the vibrating member 100 or the display panel. For example, the first vibration sound may be a left side sound. The size of the first vibrating device 137 according to the embodiment of the present specification may be less than half the size of the first region (A1) or more than half the size of the first region (A1) depending on the characteristics of the first vibration sound or the acoustic characteristics required for the device. In other embodiments of the present specification, the size of the first vibrating device 137 may correspond to the first region (A1) of the vibrating member 100 or the display panel. For example, the size of the first vibrating device 137 may be the same as the first region (A1) of the vibrating member 100 or the display panel, or may be smaller than the first region (A1).

[0187] The second vibrating device 138 may be disposed in the second region (A2) of the vibrating member 100 or the display panel. For example, the second vibrating device 138 may be disposed in the center of the second region (A2) of the vibrating member 100 or the display panel when the first direction (X) is taken as a reference. For example, the second vibrating device 138 may be disposed so as to be biased toward the center or the end side (or periphery) in the second region (A2) of the vibrating member 100 or the display panel when the first direction (X) is taken as a reference. The second vibrating device 138 according to the embodiment of the present specification may generate a second vibro-acoustic sound or generate a second haptic feedback in the second region (A2) of the vibrating member 100 or the display panel by vibrating the second region (A2) of the vibrating member 100 or the display panel. For example, the second vibrating device 138 according to the embodiment of the present specification may generate a second vibration sound or generate a second haptic feedback in the second region (A2) of the vibrating member 100 or the display panel by directly vibrating the second region (A2) of the vibrating member 100 or the display panel. For example, the second vibration sound may be a right-side sound. The size of the second vibrating device 138 according to the embodiment of the present specification may be less than half the size of the second region (A2) or more than half the size of the second region (A2) depending on the characteristics of the second vibration sound or the acoustic characteristics required for the device. In other embodiments of the present specification, the size of the second vibrating device 138 may correspond to the second region (A2) of the vibrating member 100 or the display panel. For example, the size of the second vibrating device 138 may be the same as the second region (A2) of the vibrating member 100 or the display panel, or may be smaller than the second region (A2). Therefore, the first and second vibrating devices 137, 138 may have the same size or different sizes depending on the acoustic characteristics of the left and right sides of the device and / or the acoustic characteristics of the device, and the first and second vibrating devices 137, 138 may be arranged in a symmetrical or asymmetrical structure with respect to the midline (CL) of the vibrating member 100 or the display panel.

[0188] Each of the first vibration device 137 and the second vibration device 138 may include one or more of the vibration devices 130 described in FIGS. 3A to 6C and 8A to 9C, so a duplicated description thereof will be omitted.

[0189] Referring to FIG. 11, the first vibration device 137 can include one or more first vibration parts 131-11 and a plurality of second vibration parts 132-11, 132-21. The second vibration device 138 can include one or more first vibration parts 131-12 and a plurality of second vibration parts 132-12, 132-22. In FIG. 11, the first vibration device 137 and the second vibration device 138 are each configured with the vibration device 130 of FIG. 3A to FIG. 3C, but the present invention is not limited thereto. For example, the first vibration device 137 and the second vibration device 138 can each include one of FIG. 4A to FIG. 4C, FIG. 5A to FIG. 5C, FIG. 6A to FIG. 6C, FIG. 8A, FIG. 8B, and FIG. 9A to FIG. 9C.

[0190] For example, each of the first vibration device 137 and the second vibration device 138 may include one or more of the vibration devices 130 described in at least one of Figures 3A, 4A, 8A, and 9A. When configured in this way, each of the first vibration device 137 and the second vibration device 138 may realize a sound with an improved low-frequency range. For example, each of the first vibration device 137 and the second vibration device 138 may include one or more of the vibration devices 130 described in at least one of Figures 5A, 6A, 9B, and 9C. When configured in this way, each of the first vibration device 137 and the second vibration device 138 may realize a sound with an improved high-frequency range.

[0191] The connecting member 150 according to the embodiment of the present specification may be disposed between each of the first vibrating device 137 and the second vibrating device 138 and the vibrating member 100 or the rear surface of the display panel. For example, each of the first vibrating device 137 and the second vibrating device 138 may be disposed on the rear surface of the vibrating member 100 or the display panel via the connecting member 150. The connecting member 150 is substantially the same as the connecting member 150 described in FIG. 2, and therefore a duplicated description thereof will be omitted.

[0192] Therefore, devices according to other embodiments of the present specification can provide sound to a user by outputting sound including left side sound and right side sound to the front of the vibrating member 100 or the display panel via the first vibrating device 137 and the second vibrating device 138.

[0193] The vibration device 130 according to the embodiments of the present disclosure may further include a plate 101 .

[0194] According to an embodiment of the present specification, the plate 101 may be connected or coupled to a rear surface of the vibrating member 100. For example, when the vibrating member 100 is a light-emitting display panel that is a display panel, the plate 101 may be disposed on the rear surface of an encapsulation part of the light-emitting display panel. The plate 101 may be configured to be disposed on the rear surface of the encapsulation part and bonded thereto. The plate 101 may dissipate heat generated in the display panel. For example, the plate 101 may be represented as a heat dissipation member, a heat dissipation plate, a heat sink, or the like, and is not limited to these terms.

[0195] According to the embodiment of the present specification, the plate 101 can reinforce the mass of the vibration device 130 arranged or suspended on the back surface of the vibration member 100. As a result, the plate 101 can reduce the resonance frequency of the vibration device 130 associated with an increase in the mass of the vibration device 130. Therefore, the plate 101 can improve the acoustic characteristics of the low frequency band and the sound pressure characteristics of the low frequency band that are generated in conjunction with the vibration of the vibration device 130, and can improve the flatness of the acoustic characteristics. Here, the flatness of the acoustic characteristics can be the magnitude of the deviation between the maximum sound pressure and the minimum sound pressure. For example, the plate 101 can be expressed as a weight member, a mass member, or an acoustic flattening member, and is not limited to these terms.

[0196] The plate 101 may have the same shape and size as the vibration member 100 or the display panel, or may have the same shape and size as the vibration device 130. In other embodiments herein, the plate 101 may have a different size than the vibration member 100 or the display panel. In other embodiments herein, the plate 101 may have a different size than the vibration device 130. For example, the plate 101 may be smaller than the size of the vibration member 100 or the display panel. In other embodiments herein, the plate 101 may have a different size than the vibration device 200. For example, the plate 101 may be larger or smaller than the size of the vibration device 130. The vibration device 130 may be the same or smaller than the size of the vibration member 100 or the display panel.

[0197] The plate 101 according to the embodiment of the present specification may be made of a metal material, for example, the plate 101 may be made of one or more materials selected from the group consisting of stainless steel, aluminum (Al), magnesium (Mg), magnesium (Mg) alloy, magnesium-lithium (Mg-Li) alloy, and aluminum (Al) alloy, but is not limited thereto.

[0198] According to the embodiments of the present specification, the displacement (or bending force) or amplitude displacement (or vibration width) of the vibrating member 100 or the display panel on which the plate 101 is disposed can be reduced as the thickness of the plate 101 increases due to the rigidity of the plate 101. As a result, the low frequency band characteristics and sound pressure characteristics of the sound generated by the displacement (or vibration) of the vibrating member 100 or the display panel can be reduced.

[0199] The plate 101 according to the embodiment of the present specification may be coupled or connected to the vibrating member 100 or the rear surface of the display panel via a connecting member (or a fifth connecting member). The connecting member may be disposed between the vibrating member 100 and the plate 101.

[0200] The connecting member according to the embodiment of the present specification may include an adhesive layer having relatively excellent adhesion or bonding strength to each of the vibrating member 100 or the rear surface of the display panel and the vibrating device 130. For example, the connecting member may include a foam pad, a double-sided tape, or an adhesive. For example, the adhesive layer of the connecting member may include, but is not limited to, epoxy, acrylic, silicone, or urethane. For example, the adhesive layer of the connecting member may be the same or substantially the same as the adhesive layer of the connecting member 150, but is not limited to this. For example, the adhesive layer of the connecting member may include an acrylic-based material (or material) having relatively excellent adhesion and high hardness properties compared to urethane-based materials so that the vibration of the vibrating device 130 is effectively transmitted to the vibrating member 100 or the display panel. In other embodiments of the present specification, the adhesive layer of the connecting member may be configured differently from the adhesive layer of the connecting member 150.

[0201] The plate 101 according to the embodiments of the present specification may be integrated with the vibration device 130 or may be included in the configuration of the vibration device 130. For example, the plate 101 and the vibration device 130 may be configured as one structure or one part (or device) consisting of one main body (or one unitary body). In this way, when the plate 101 is disposed between the rear surface of the vibration member 100 or the display panel and the vibration device 130, the assembly process between the vibration member 100 or the display panel and the vibration device 130 may be facilitated due to the integration (or unification) of the parts between the plate 101 and the vibration device 130.

[0202] In another embodiment of the present specification, when the plate 101 and the vibration device 130 are configured as one structure or one part (or device) consisting of one main body, the non-visible panel can be configured as a vibration plate. The plate 101 and the vibration device 130 can be disposed on the non-visible panel. The plate 101 and the vibration device 130 can be connected or coupled via a connecting member 150. For example, the plate 101 can be or include one or more of metal, wood, rubber, plastic, glass, cloth, fiber, paper, mirror, leather, automotive interior materials, ceilings, and aircraft, and the embodiments of the present specification are not limited thereto. Thus, the non-visible panel can be vibrated to output sound. In another embodiment of the present specification, when the plate 101 and the vibration device 130 are configured as one structure or one part (or device) consisting of one main body, the plate can be configured as a vibration plate. For example, in a module (or assembly) of plate 101 and vibration device 130, plate 101 may be made of any one or more of the following single or composite non-metallic materials, including, but not limited to, wood, rubber, plastic, glass, cloth, paper, fiber, mirror, and leather.

[0203] The plate 101 according to other embodiments of the present specification may include a plurality of openings. The plurality of openings may be configured to have a certain size and a certain interval. For example, the plurality of openings may be formed along the first direction (X) and the second direction (Y) to have a certain size and a certain interval. Each of the plurality of openings allows the sound waves (or sound pressure) caused by the vibration of the vibration device 130 to be concentrated on the vibration member 100 without being dispersed by the plate 101, thereby minimizing the loss of vibration caused by the plate 101, and thus enhancing the sound pressure characteristics of the sound generated by the vibration of the vibration member 100. For example, the plate 101 including the plurality of openings may have a mesh shape. For example, the plate 101 including the plurality of openings may be a mesh plate.

[0204] Since the device according to the embodiment of the present specification is configured with at least two vibration devices 137, 138, sounds including left and right sounds can be provided to the user by vibration of the at least two vibration devices 137, 138.

[0205] In addition, the device according to the embodiment of the present specification further includes the plate 101 disposed on the rear surface of the vibration device 130, thereby reducing the resonance frequency of the vibration device 130. As a result, it is possible to increase the acoustic characteristics of the low frequency range and the sound pressure characteristics of the low frequency range generated by the vibration of the vibration member 100 or the display panel linked to the vibration of the vibration device 130 according to the embodiment of the present specification, thereby improving the flatness of the acoustic characteristics.

[0206] Furthermore, in the device according to the embodiments of the present specification, since at least two or more vibration devices 137, 138 are each composed of a first vibration part and a second vibration part, it is possible to provide a device with improved sound pressure characteristics and / or acoustic characteristics, including the low-frequency range.

[0207] FIG. 12 shows an apparatus according to another embodiment of the present disclosure.

[0208] 12, in a device according to another embodiment of the present specification, the vibration device 130 may include at least one or more first vibration parts 131 and a plurality of second vibration parts 132. For example, the at least one or more first vibration parts 131 may be composed of the 1-1 vibration part 131-1, the 1-2 vibration part 131-2, the 1-3 vibration part 131-3, the 1-4 vibration part 131-4, the 1-5 vibration part 131-5, the 1-6 vibration part 131-6, the 1-7 vibration part 131-7, and the 1-8 vibration part 131-8, and the plurality of second vibration parts 132 may be composed of the 2-1 vibration part 132-1, the 2-2 vibration part 132-2, the 2-3 vibration part 132-3, and the 2-4 vibration part 132-4.

[0209] A drive signal (or an audio signal) is applied to each of the 1-1 vibration unit to the 1-8 vibration unit 131-1 to 131-8, and audio can be output. In the embodiment of the present specification, an example of active sound drive will be described. For example, it will be described assuming that the left side of a television screen has subtitles for news, etc., and the right side has an announcer explaining the news, etc.

[0210] For example, the first driving signal (DS1) is applied to the 1-1 vibration unit 131-1, and the second driving signal (DS2) is applied to the 1-2 vibration unit 131-2. The left part of the screen is where subtitles such as news are displayed, so it can be driven to have low treble characteristics. For example, the ninth driving signal (DS9) can be applied to the 2-1 vibration unit 132-1, and the tenth driving signal (DS10) can be applied to the 2-2 vibration unit 132-2. The left part of the screen is where subtitles such as news are displayed, so it can be driven to have low treble characteristics. The fifth driving signal (DS5) can be applied to the 1-5 vibration unit 131-5, and the sixth driving signal (DS6) can be applied to the 1-6 vibration unit 131-6. The left part of the screen is where subtitles such as news are displayed, so it can be driven to have low treble characteristics.

[0211] For example, the third driving signal (DS3) is applied to the 1-3 vibration unit 131-3, and the fourth driving signal (DS4) is applied to the 1-4 vibration unit 131-4. The right side of the screen can be driven to have high treble characteristics because the announcer will be explaining the news, etc. The eleventh driving signal (DS11) can be applied to the 2-3 vibration unit 132-3, and the twelfth driving signal (DS12) can be applied to the 2-4 vibration unit 132-4. The right side of the screen can be driven to have high treble characteristics because the announcer will be explaining the news, etc. The seventh driving signal (DS7) can be applied to the 1-7 vibration unit 131-7, and the eighth driving signal (DS8) can be applied to the 1-8 vibration unit 131-8. The right side of the screen can be driven to have high treble characteristics because the announcer will be explaining the news, etc.

[0212] According to the embodiments of the present specification, it is possible to apply separate or independent drive signals (or acoustic signals) to the first vibration unit and the second vibration unit, thereby applying drive signals according to desired acoustic characteristics, thereby realizing a device having desired acoustic characteristics.

[0213] FIG. 13 illustrates a transportation device according to an embodiment of the present disclosure. FIG. 14 illustrates a transportation device according to an embodiment of the present disclosure. FIG. 15 illustrates vibrators disposed around the driver's seat and front passenger seat of FIGS. 13 and 14. FIG. 16 illustrates vibrators disposed on the door and glass window of FIGS. 13 and 14. FIG. 17 illustrates vibrators disposed on the roof panel of FIGS. 13 and 14. FIG. 18 illustrates vibrators disposed on the roof panel, glass window and seat of FIGS. 13 and 15.

[0214] 13-18, a transportation device according to an embodiment of the present disclosure may include a main structure, an exterior material, and an interior material 180.

[0215] The main structure (or frame structure) may include, but is not limited to, a main frame, a sub-frame, a side frame, a door frame, an underframe, and a seat frame.

[0216] The exterior material may be configured to cover the main structure. For example, the exterior material may be configured to cover the outside of the main structure. The exterior material according to the embodiment of the present specification may include one or more of a hood panel, a front fender panel, a dash panel, a support panel, a trunk panel, a roof panel, a floor panel, a door inner panel, a door outer panel, etc., and other embodiments of the present specification are not limited thereto. The exterior material according to the embodiment of the present specification may include at least one or more of a flat portion and a curved portion. For example, the exterior material may have a surface structure corresponding to the surface structure of the corresponding main structure, or may have a surface structure different from the surface structure of the corresponding main structure.

[0217] Interior trim 180 may include all components that make up the interior of the transportation device or may include all components that are disposed within the interior space of the transportation device. For example, interior trim 180 may be, but is not limited to, the interior components or interior finish components of the transportation device.

[0218] The interior material 180 according to the embodiment of the present specification may be configured to cover one or more of the main structure and the exterior material in the interior space of the vehicle and be exposed to the interior space of the vehicle. For example, the interior material 180 may include one or more of a dashboard (or a dashboard of the vehicle), a pillar interior material (or a pillar trim), a floor interior material (or a floor carpet), a roof interior material (or a headliner), a door interior material (or a door trim), a handle interior material (or a steering wheel cover), a seat interior material, a rear package interior material (or a rear seat shelf), an overhead console (or an interior lighting interior material), a rearview mirror, a glove box, a sun visor, etc.

[0219] The interior material 180 according to the embodiment of the present specification may include one or more materials selected from the group consisting of, but not limited to, plastic, glass, carbon, fiber, leather, cloth, rubber, wood, mirror, paper, and metal. For example, the paper may be a cone paper for a speaker. For example, the cone paper may be, but is not limited to, pulp or foamed plastic.

[0220] The interior material 180 according to other embodiments of the present disclosure may include a base member and a skin member. For example, the base member may be, but is not limited to, an injection, a first interior material, an inner interior material, or a rear interior material. The skin member may be, but is not limited to, a second interior material, an outer interior material, a front interior material, an outer skin member, a reinforcing member, or a decorative member.

[0221] The interior material 180 or the base member may be made of a plastic material. For example, the interior material 130 or the base member may be an injection product realized by an injection process using a thermoplastic resin or a thermosetting resin, but is not limited thereto. The interior material 180 or the base member may be configured to cover one or more of the main structure and the exterior material in the interior space of the transportation device. For example, the interior material 180 or the base member may be configured to cover at least one surface (or interior surface) of the main frame, side frame, door frame, and handle frame exposed to the interior space of the transportation device.

[0222] The skin member may be disposed to cover the base member. The skin member may be configured to be exposed to the interior space of the transportation device while covering the base member. For example, the skin member may be disposed or coupled to a front surface of the base member exposed to the interior space of the transportation device. For example, the skin member may include any one or more materials selected from the group consisting of plastic, glass, fiber, leather, cloth, rubber, mirror, wood, paper, and metal.

[0223] The interior material 180 or the skin member may be a fiber material. For example, the interior material 180 or the skin member may include at least one of synthetic fiber, carbon fiber (or aramid fiber), and natural fiber. For example, the interior material 180 or the skin member may be a woven sheet, a knitted sheet, or a nonwoven fabric, but is not limited thereto. For example, the interior material 180 or the skin member may be a fabric member, but is not limited thereto. The synthetic fiber may include polyolefin fiber, which is a thermoplastic resin and is an environmentally friendly material that relatively does not emit harmful substances. For example, the polyolefin fiber may include polyethylene fiber, polypropylene fiber, or polyethylene terephthalate fiber. The polyolefin fiber may be a single resin fiber or a core-shell fiber. The natural fiber may be a mixed fiber of any one or more of jute fiber, kenaf fiber, abaca fiber, coconut fiber, and wood fiber.

[0224] One or more vibration generators 30 including one or more first vibration generators 30-1 to third vibration generators 30-3 can be arranged between the main structure and the exterior material, between the main structure and the interior material 180, and / or in one or more of the exterior material and the interior material 180. For example, one or more vibration generators 30 including one or more first vibration generators 30-1 to third vibration generators 30-3 can be arranged in one or more of (a) the exterior material, (b) the interior material 180, (c) the area between the main structure and the exterior material, and (d) the area between the main structure and the interior material 180. For example, one or more vibration generators 30 can be arranged between the main structure and the exterior material, between the main structure and the interior material 180, and / or in one or more of the exterior material and the interior material 180, and configured to output sound. For example, one or more vibration generating devices 30 may be disposed between the main structure and the exterior material, between the main structure and the interior material 180, and / or in one or more of the exterior material and the interior material 180, and may indirectly or directly vibrate the area between the main structure and the exterior material, the area between the main structure and the interior material 180, and / or in one or more of the exterior material and the interior material 180 to output sound. For example, one or more vibration generating devices 30 may be disposed between the exterior material and the interior material 180, and may indirectly or directly vibrate one or more of the exterior material and the interior material 180 to output sound. For example, the vibrating member of one or more vibration generating devices 30 may be one or more of the exterior material and the interior material 180. According to an embodiment of the present specification, one or more of the exterior material and the interior material 180 may output sound by one or more vibration generating devices 30.

[0225] One or more of the exterior and interior materials 180 of the transportation device may be a vibration plate, an acoustic diaphragm, or an acoustic generating plate for sound output. For example, each of the exterior and interior materials 180 for sound output has a size larger than one or more vibration generating devices 30, and thus functions as a large-area vibration plate, an acoustic diaphragm, or an acoustic generating plate, thereby improving the acoustic characteristics and / or sound pressure characteristics of the low-frequency range generated by the one or more vibration generating devices 30. For example, the frequency of the low-frequency range may be 500 Hz or less, but is not limited thereto.

[0226] One or more vibration generating devices 30 according to embodiments of the present specification may output sound between the exterior material and the interior material 180 of the transportation device. For example, one or more vibration generating devices 30 may be connected or coupled to one or more of the exterior material and the interior material 180 between the exterior material and the interior material 180, and may indirectly or directly vibrate one or more of the exterior material and the interior material 180 to output sound.

[0227] The transportation device according to the embodiment of the present specification may include a first vibration generating device 30-1 configured to output sound between the exterior material and the interior material 180. For example, the first vibration generating device 30-1 may be disposed in at least one of the exterior material, the interior material 180, and between the exterior material and the interior material 180 to output sound.

[0228] The first vibration generator 30-1 may include one or more vibrators 31A-31G arranged in at least one of the dashboard 180A, the pillar interior material, the roof interior material 180C, the door interior material 180D, the seat interior material 180E, the handle interior material 180F, and the floor interior material 180G. In one or more examples, the first vibration generator 30-1 including one or more vibrators 31A-31G can vibrate one or more of the aforementioned. For example, the first vibration generator 30-1 includes at least one or more of the first to seventh vibrators 31A-31G, and can thereby output sound of one or more channels.

[0229] 13 to 18, the first vibrator 31A according to the embodiment of the present specification may be disposed between a dash panel and a dashboard 180A, and configured to indirectly or directly vibrate the dashboard 180A to output sound. For example, the first vibrator 31A includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A to 9C, and therefore a duplicate description thereof will be omitted. For example, in a vehicle, the farther the first vibrator 31A is from the position of a sound source or an object receiving sound, or the position of the ears of the driver and / or passenger, the more the vibration device may be configured to enhance low-frequency sound. For example, the first vibrator 31A may be composed of one or more of the vibration devices described with reference to Figures 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figures 3D, 5A, 6A, 9B, and 9C. In other embodiments, the first vibrator 31A may be composed of two or more vibration devices. For example, the first vibrator 31A may be expressed by terms such as a dashboard speaker or a first speaker, but is not limited thereto.

[0230] According to an embodiment of the present specification, at least one of the dash panel and the dashboard 180A may 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 of the dash panel and the dashboard 180A may include a fourth region that is inclined while facing the passenger seat (PS). According to an embodiment of the present specification, the first vibrator 31A may be arranged to vibrate at least one of the first to fourth regions of the dashboard 180A. For example, the first vibrator 31A may be arranged in each of the first and second regions of the dashboard 180A, or in each of the first to fourth regions. For example, the first vibrator 31A may be arranged in each of the first and second regions of the dashboard 180A, or in at least one of the first to fourth regions. For example, the first vibrator 31A may be configured to output sound of 150 Hz to 20 kHz. For example, the first vibrators 31A configured to vibrate at least one of the first to fourth regions of the dashboard 180A may have the same or different acoustic output characteristics. For example, the first vibrators 31A configured to vibrate each of the first to fourth regions of the dashboard 180A may have the same or different acoustic output characteristics.

[0231] The second vibrator 31B according to the embodiment of the present specification may be disposed between the support panel and the support interior material 180B, and may be configured to indirectly or directly vibrate the support interior material 180B to output sound. For example, the second vibrator 31B includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, and therefore a duplicate description thereof will be omitted. For example, the closer to the position of the sound source or the object receiving the sound in the vehicle, or the position of the ears of the driver and / or passenger (or passenger), the more the second vibrator 31B may be configured as a vibration device that enhances the sound in the high frequency range. For example, the second vibrator 31B may be configured as a vibration device that further enhances the sound in the high frequency range. For example, the second vibrator 31B can be configured with one or more of the vibration devices described with reference to FIG. 3A, FIG. 3D, FIG. 4A, FIG. 5A, FIG. 6A, FIG. 8A, FIG. 8B, and FIG. 9A to FIG. 9C, for example, FIG. 3A, FIG. 4A, FIG. 8A, FIG. 8B, and FIG. 9A. For example, the vibration generator disposed at a position close to the passenger's ear can be configured with a vibration device in which the first vibration part is disposed at a center of the vibration member more than the second vibration part. For example, the vibration generator disposed at a position far from the passenger's ear can be configured with a vibration device in which the second vibration part is disposed at a center of the vibration member more than the first vibration part. For example, the vibration generator disposed at a position close to the passenger's ear can be configured with a vibration device in which the area of ​​the first vibration part is larger than the area of ​​the second vibration part. For example, the vibration generator disposed at a position far from the passenger's ear can be configured with a vibration device in which the area of ​​the first vibration part is smaller than the area of ​​the second vibration part. In other embodiments, the second vibrator 31B can be configured with two or more vibration devices. For example, the second vibrator 31B may be expressed by terms such as a pole speaker, a tweeter speaker, or a second speaker, but is not limited to these.

[0232] According to an embodiment of the present specification, the support panel may include a first support (or A-pillar) disposed on both sides of the front glass window, a second support (or B-pillar) disposed on both sides of the center of the vehicle body, and a third support (or C-pillar) disposed on both sides of the rear side of the vehicle body. The support pillar interior material 180B may include a first support pillar interior material 180B1 covering the first support pillar, a second support pillar interior material 180B2 covering the second support pillar, and a third support pillar interior material 180B3 covering the third support pillar. According to an embodiment of the present specification, the second vibrator 31B may be disposed at least one of between the first support pillar and the first support pillar interior material 180B1, between the second support pillar and the second support pillar interior material 180B2, and between the third support pillar and the third support pillar interior material 180B3, thereby vibrating at least one of the first to third support pillar interior materials 180B1, 180B2, and 180B3. For example, the second vibrator 31B includes the vibration device 180 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, and therefore a duplicate description thereof will be omitted. For example, the closer to the position of the sound source or the object receiving the sound in the vehicle, or the position of the ears of the driver and / or passenger (or passenger), the more the vibration device may be configured with enhanced high-frequency sound. For example, the second vibrator 31B may be configured with a vibration device with further improved high-frequency sound. For example, the second vibrator 31B may be configured with one or more of the vibration devices described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figs. 3A, 4A, 8A, 8B, and 9A. In other embodiments, the second vibrator 31B can be configured with two or more vibration devices. For example, the second vibrator 31B can be configured to output sound of 2 kHz to 20 kHz, but is not limited thereto. For example, the second vibrator 31B can be configured to output sound of 150 Hz to 20 kHz. For example, the second vibrators 31B configured to vibrate at least one or more of the first to third pillar interior materials 180B1, 180B2, and 180B3 can have the same or different sound output characteristics.

[0233] 13, 17, and 18, the third vibrator 31C and the 3-1 vibrator 31C1 according to the embodiment of the present specification are disposed between the roof panel and the roof interior material 180C, and may be configured to indirectly or directly vibrate the roof interior material 180C to output sound. For example, the third vibrator 31C and the 3-1 vibrator 31C1 include the vibration device 130 described with reference to Figs. 3A, 4A, 5A, 6A, 8A, and 9A to 9C, and therefore a duplicate description thereof will be omitted. For example, the third vibrator 31C may be configured as a vibration device in which the sound of the high frequency band is enhanced as it is closer to the position of the sound source or the object receiving the sound in the vehicle, or the position of the ears of the driver and / or passenger (or passenger). For example, the third vibrator 31C may be configured as a vibration device in which the sound of the high frequency band is enhanced. For example, the third vibrator 31C may be configured with one or more of the vibration devices described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figs. 3A, 4A, 8A, 8B, and 9A. In other embodiments, the third vibrator 31C may be configured with two or more vibration devices. For example, the third vibrator 31C may be configured with a vibrator that is the same or substantially the same as the second vibrator 31B, but is not limited thereto. For example, the 3-1 vibrator 31C1 may be configured with a vibration device that enhances the sound of the low frequency band the farther it is from the position of the sound source or the object receiving the sound in the vehicle, or the position of the ears of the driver and / or passenger (or passenger). For example, the 3-1 vibrator 31C1 may be configured with a vibration device that enhances the sound of the low frequency band. For example, the 3-1st vibrator 31C1 may be composed of one or more of the vibrators described with reference to Figures 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figures 3D, 5A, 6A, 9B, and 9C. In other embodiments, the 3-1st vibrator 31C1 may be composed of two or more vibrators. For example, the 3-1st vibrator 31C1 may be composed of a vibrator that is the same or substantially the same as the first vibrator 31A, but is not limited thereto.For example, the third vibrator 31C and the 3-1 vibrator 31C1 can be expressed by terms such as a roof speaker or a third speaker, but are not limited thereto.

[0234] According to an embodiment of the present specification, at least one of the roof panel and the roof interior material 180C covering the roof panel can include the first region to the seventh region. For example, at least one of the roof panel and the roof interior material 180C 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 passenger seat (BS1) behind the driver's seat (DS), a fifth region corresponding to the second rear passenger seat (BS2) behind the passenger seat (PS), a sixth region corresponding to the area between the first rear passenger seat (BS1) and the second rear passenger seat (BS2), and a seventh region between the third region and the sixth region. For example, the third vibrator 31C and the 3-1 vibrator 31C1 can be configured to vibrate at least one of the first to seventh regions of the roof interior material 180C. For example, the third vibrator 31C and the 3-1 vibrator 31C1 can be configured to output sound of 150Hz to 20kHz. For example, the third vibrator 31C and the 3-1 vibrator 31C1 configured to vibrate at least one or more of the first to seventh regions of the roof interior material 180C can have the same or different sound output characteristics. For example, the third vibrator 31C and the 3-1 vibrator 31C1 configured to vibrate each of the first to seventh regions of the roof interior material 180C can have the same or different sound output characteristics. For example, at least one or more of the third vibrator 31C and the 3-1 vibrator 31C1 configured to vibrate at least one or more of the first to seventh regions of the roof interior material 180C can be configured to output sound of 2kHz to 20kHz, and the remaining can be configured to output sound of 150Hz to 20kHz. For example, the third vibrator 31C and the 3-1 vibrator 31C1 configured to vibrate the first to seventh regions of the roof interior material 180C, respectively, can be configured so that at least one of them outputs sound between 2 kHz and 20 kHz, and the rest can be configured to output sound between 150 Hz and 20 kHz.

[0235] 13 to 16, the fourth vibrator 31D and the 4-1 vibrator 31D1 according to the embodiment of the present specification may be arranged between the door frame and the door interior material 180D, and may be configured to indirectly or directly vibrate the door interior material 180D to output sound. For example, the fourth vibrator 31D and the 4-1 vibrator 31D1 include the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A to 9C, and therefore a duplicated description thereof will be omitted. For example, the fourth vibrator 31D may be configured as a vibration device in which the sound of the high frequency band is enhanced as it is closer to the position of the sound source or the object receiving the sound in the vehicle, or the position of the ears of the driver and / or passenger (or passenger). For example, the fourth vibrator 31D may be configured as a vibration device in which the sound of the high frequency band is enhanced. For example, the fourth vibrator 31D may be configured with one or more of the vibration devices described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figs. 3A, 4A, 8A, 8B, and 9A. In other embodiments, the fourth vibrator 31D may be configured with two or more vibration devices. For example, the fourth vibrator 31D may be configured with a vibrator that is the same or substantially the same as at least one of the second vibrator 31B and the third vibrator 31C, but is not limited thereto. For example, the 4-1 vibrator 31D1 may be configured with a vibration device that enhances the sound of the low frequency band the farther it is from the position of the sound source or the object receiving the sound in the vehicle, or the position of the ears of the driver and / or passenger (or passenger). For example, the 4-1 vibrator 31D1 may be configured with a vibration device that enhances the sound of the low frequency band. For example, the 4-1st vibrator 31D1 can be composed of one or more of the vibration devices described with reference to Figures 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A to 9C, for example, Figures 3D, 5A, 6A, 9B, and 9C. In other embodiments, the 4-1st vibrator 31D1 can be composed of two or more vibration devices.For example, the 4-1 vibrator 31D1 may be configured with a vibrator that is the same or substantially the same as at least one of the 1st vibrator 31A and the 3-1st vibrator 31C1, but is not limited thereto. For example, the 4th vibrator 31D and the 4-1st vibrator 31D1 may be expressed by terms such as a door speaker or a fourth speaker, but is not limited thereto.

[0236] According to an embodiment of the present specification, at least one of the door frame and the door interior material 180D may include an upper region, a middle region, and a lower region based on the height direction (Z). For example, the fourth vibrator 31D and the 4-1 vibrator 31D1 may be disposed in at least one of the upper region, the middle region, and the lower region between the door frame and the door interior material 180D, thereby vibrating at least one of the upper region, the middle region, and the lower region of the door interior material 180D.

[0237] According to an embodiment of the present specification, the upper region of the door interior material 180D may include a curved portion having a relatively small radius of curvature. The fourth vibrator 31D and the 4-1 vibrator 31D1 for vibrating the upper region of the door interior material 180D may be configured to bend into a shape that directly follows the shape (or surface shape) of the curved portion of the upper region of the door interior material 180D.

[0238] According to an embodiment of the present specification, the door frame may include a first door frame (or a left front door frame), a second door frame (or a right front door frame), a third door frame (or a left rear door frame), and a fourth door frame (or a right rear door frame). According to an embodiment of the present specification, the door interior material 180D may include a first door interior material (or a left front door interior material) 180D1 covering the first door frame, a second door interior material (or a right front door interior material) 180D2 covering the second door frame, a third door interior material (or a left rear door interior material) 180D3 covering the third door frame, and a fourth door interior material (or a right rear door interior material) 180D4 covering the fourth door frame. For example, the fourth vibrator 31D and the 4-1 vibrator 31D1 are 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 interior materials 180D1 to 180D4, and can vibrate at least one of the upper region, middle region, and lower region of each of the first to fourth door interior materials 180D1 to 180D4.

[0239] According to the embodiment of the present specification, the fourth vibrator 31D and the 4-1 vibrator 31D1 configured to vibrate the upper regions of the first to fourth door interior materials 180D1 to 180D4 can be configured to output sound of 2 kHz to 20 kHz or sound of 150 Hz to 20 kHz. For example, the fourth vibrator 31D and the 4-1 vibrator 31D1 configured to vibrate at least one or more upper regions of the first to fourth door interior materials 180D1 to 180D4 can be configured to output sound of 2 kHz to 20 kHz or sound of 150 Hz to 20 kHz.

[0240] According to the embodiment of the present specification, the fourth vibrator 31D and the fourth-first vibrator 31D1 configured to vibrate at least one or more middle regions or / and lower regions of the first to fourth door interior materials 180D1 to 180D4 can be configured to output sound of 150 Hz to 20 kHz. The fourth vibrator 31D and the fourth-first vibrator 31D1 configured to vibrate the middle regions or / and lower regions of the first to fourth door interior materials 180D1 to 180D4 can be configured to output sound of 150 Hz to 20 kHz. For example, the fourth vibrator 31D and the fourth-first vibrator 31D1 configured to vibrate at least one or more middle regions or / and lower regions of the first to fourth door interior materials 180D1 to 180D4 can be any one or more of a woofer, a mid-woofer, and a subwoofer. For example, the fourth vibrator 31D and the 4-1st vibrator 31D1 configured to vibrate the middle region and / or the lower region of each of the first to fourth door interior materials 180D1 to 180D4 may be one or more of a woofer, a mid-woofer, and a subwoofer.

[0241] Sounds output from the fourth vibrator 31D and the 4-1 vibrator 31D1 arranged on the first door interior material 180D1 and the fourth vibrator 31D and the 4-1 vibrator 31D1 arranged on the second door interior material 180D2 can be output together. For example, sounds output from at least one of the fourth vibrator 31D and the 4-1 vibrator 31D1 arranged on the first door interior material 180D1 and the fourth vibrator 31D and the 4-1 vibrator 31D1 arranged on the second door interior material 180D2 can be output together. Also, sounds output by the fourth vibrator 31D and the 4-1 vibrator 31D1 arranged on the third door interior material 180D3 and sounds output by the fourth vibrator 31D and the 4-1 vibrator 31D1 arranged on the fourth door interior material 180D4 can be output together.

[0242] According to the embodiment of the present specification, the upper region of each of the first to fourth door interior materials 180D1 to 180D4 may include a first upper region adjacent to the dashboard 180A, a second upper region adjacent to the rear seats (BS1, BS2, BS3), and a third upper region between the first upper region and the second upper region. For example, the fourth vibrator 31D and the 4-1 vibrator 31D1 may be disposed in one or more of the first to third upper regions of each of the first to fourth door interior materials 180D1 to 180D4. For example, the fourth vibrator 31D and the 4-1 vibrator 31D1 may be disposed in the first upper region of each of the first and second door interior materials 180D1, 180D2, and may be disposed in one or more of the second and third upper regions of each of the first and second door interior materials 180D1, 180D2. For example, the fourth vibrator 31D and the 4-1 vibrator 31D1 can be disposed in one or more of at least one of the first to third upper regions of the first to fourth door interior materials 180D1 to 180D4. For example, the fourth vibrator 31D and the 4-1 vibrator 31D1 configured to vibrate one or more of the first upper regions of the first and second door interior materials 180D1, 180D2 can be configured to output sound of 2 kHz to 20 kHz, and the fourth vibrator 31D and the 4-1 vibrator 31D1 configured to vibrate one or more of the second and third upper regions of each of the first and second door interior materials 180D1, 180D2 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 vibrator 31D and the 4-1 vibrator 31D1 configured to vibrate one or more of at least one or more of the second and third upper regions of the first and second door interior materials 180D1, 180D2 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.

[0243] 13, 15, and 18, the fifth vibrator 31E according to the embodiment of the present specification may be arranged between the seat frame and the seat interior material 180E, and may be configured to indirectly or directly vibrate the seat interior material 180E to output sound. For example, the fifth vibrator 31E includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, and therefore a duplicate description thereof will be omitted. For example, in a vehicle, the fifth vibrator 31E may be configured as a vibration device in which the sound of the low frequency band is enhanced the farther it is from the position of the sound source or the object receiving the sound, or the position of the ears of the driver and / or passenger (or passenger). For example, the fifth vibrator 31E may be configured as a vibration device in which the sound of the low frequency band is enhanced. For example, the fifth vibrator 31E may be composed of one or more of the vibration devices described with reference to FIG. 3A, FIG. 3D, FIG. 4A, FIG. 5A, FIG. 6A, FIG. 8A, FIG. 8B, and FIG. 9A-FIG. 9C, for example, FIG. 3D, FIG. 5A, FIG. 6A, FIG. 9B, and FIG. 9C. In other embodiments, the fifth vibrator 31E may be composed of two or more vibration devices. For example, the fifth vibrator 31E may be composed of a vibrator that is the same or substantially the same as one or more of the first vibrator 31A, the 3-1st vibrator 31C1, and the 4-1st vibrator 31D1, but is not limited thereto. For example, the fifth vibrator 31E may be expressed by terms such as a seat speaker, a headrest speaker, or a fifth speaker, but is not limited thereto.

[0244] 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 180E 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.

[0245] According to an embodiment of the present specification, at least one of the first to fifth seat frames may include a seat floor frame, a seat rear frame, and a headrest frame. The seat interior material 180E may include a seat floor interior material 180E1 surrounding the seat floor frame, a seat rear interior material 180E2 surrounding the seat rear frame, and a headrest interior material 180E3 surrounding the headrest frame. At least one of the seat floor interior material 180E1, the seat rear interior material 180E2, and the headrest interior material 180E3 may include a seat interior material and a seat exterior interior material. The seat 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.

[0246] According to an embodiment of the present specification, the fifth vibrator 31E is arranged at least in one or more positions between the seat rear frame and the seat rear interior material 180E2, and between the headrest frame and the headrest interior material 180E3, thereby being able to vibrate at least one or more of the seat exterior interior material of the seat rear interior material 180E2 and the seat exterior interior material of the headrest interior material 180E3.

[0247] According to an embodiment of the present specification, the fifth vibrator 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 rear frame and the seat rear interior material 180E2 and between the headrest frame and the headrest interior material 180E3.

[0248] According to an embodiment of the present specification, the fifth vibrator 31E arranged in at least one of the first to third passenger seats (BS1, BS2, BS3) may be arranged between the headrest frame and the headrest interior material 180E3. For example, at least one of the first to third passenger seats (BS1, BS2, BS3) may include at least one fifth vibrator 31E arranged between the headrest frame and the headrest interior material 180E3.

[0249] According to an embodiment of the present specification, the fifth vibrator 31E, which vibrates at least one or more seat rear interior materials 180E2 among the driver's seat (DS) and passenger seat (PS), can be configured to output sound of 150 Hz to 20 kHz.

[0250] According to an embodiment of the present specification, the five vibrators 31E that vibrate at least one of the headrest interior materials 180E3 among the driver's seat (DS), passenger seat (PS), and first to third passenger seats (BS1, BS2, BS3) 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.

[0251] 13 to 16, the sixth vibrator 31F according to the embodiment of the present specification is disposed between the handle frame and the handle interior material 180F, and may be configured to indirectly or directly vibrate the handle interior material 180F to output sound. For example, the sixth vibrator 31F includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A to 9C, and therefore a duplicate description thereof will be omitted. For example, in a vehicle, the farther the vehicle is from the position of the sound source or the object receiving the sound, or the position of the driver and / or passenger's (or passenger's) ears, the more the sixth vibrator 31F may be configured as a vibration device that enhances the sound of the low frequency range. For example, the sixth vibrator 31F may be configured as a vibration device that enhances the sound of the low frequency range. For example, the sixth vibrator 31F may be composed of one or more of the vibration devices described with reference to FIG. 3A, FIG. 3D, FIG. 4A, FIG. 5A, FIG. 6A, FIG. 8A, FIG. 8B, and FIG. 9A-FIG. 9C, for example, FIG. 3D, FIG. 5A, FIG. 6A, FIG. 9B, and FIG. 9C. In other embodiments, the sixth vibrator 31F may be composed of two or more vibration devices. For example, the sixth vibrator 31F may be composed of a vibrator that is the same or substantially the same as at least one or more of the first vibrator 31A and the fifth vibrator 31E, but is not limited thereto. For example, the sixth vibrator 31F may be expressed by terms such as a handle speaker, a steering speaker, or a sixth speaker, but is not limited thereto.

[0252] According to an embodiment of the present specification, the sixth vibrator 31F can provide the driver with sound by indirectly or directly vibrating the steering wheel interior material 180F. The sound output from the sixth vibrator 31F can be the same as or different from the sound output from each of the first to fifth vibrators 31A to 31E. For example, the sound output by the sixth vibrator 31F can be the same as or different from the sound output by at least one of the first to fifth vibrators 31A to 31E. As an embodiment of the present specification, the sixth vibrator 31F can output sound provided only to the driver. As another embodiment of the present specification, the sound output by the sixth vibrator 31F and the sound output by each of the first to fifth vibrators 31A to 31E can be output in combination with each other. For example, the sound output from the sixth vibrator 31F and the sound output by at least one of the first to fifth vibrators 31A to 31E can be output in combination with each other.

[0253] 13 and 14, the seventh vibrator 31G may be arranged between a floor panel and a floor interior material 180G, and may be configured to indirectly or directly vibrate the floor interior material 180G to output sound. The seventh vibrator 31G may be arranged between a floor panel arranged between the front seats (DS, PS) and the third rear passenger seat (BS3) and the floor interior material 180G. For example, the seventh vibrator 31G includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figs. 3D, 5A, 6A, 9B, and 9C, and therefore a duplicated description will be omitted. For example, in a vehicle, the farther away from the position of the sound source or the object receiving the sound, or the position of the ears of the driver and / or passenger (or passenger), the more the vibration device may be configured to enhance the sound of the low frequency band. The seventh vibrator 31G can be configured as a vibration device with improved sound in the low frequency range. For example, the seventh vibrator 31G can be a vibration device with improved sound in the low frequency range, since the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figs. 3D, 5A, 6A, 9B, and 9C has the second vibration part 132 disposed in the center more than the first vibration part 131. In other embodiments, the seventh vibrator 31G can be configured as two or more vibration devices. For example, the seventh vibrator 31G can be configured as a vibrator that is the same or substantially the same as at least one of the first vibrator 31A, the fifth vibrator 31E, and the sixth vibrator 31F, but is not limited thereto. For example, the seventh vibrator 31G can be configured to output sound in the range of 150 Hz to 20 kHz. For example, the seventh vibrator 31G can be expressed by terms such as a floor speaker, a bottom speaker, an under-speaker, or a seventh speaker, but is not limited to these.

[0254] 13 to 17, the transportation device according to the embodiment of the present specification may further include a second vibration generating device 30-2 disposed on the interior material 180 exposed to the indoor space. For example, the transportation device according to the embodiment of the present specification may include only the second vibration generating device 30-2 instead of the first vibration generating device 30-1, or may include both the first vibration generating device 30-1 and the second vibration generating device 30-2.

[0255] According to an embodiment of the present specification, the interior material 180 may further include a rearview mirror 180H, an overhead console 180I, a rear package interior material 180J, a glove box 180K, and a sun visor 180L.

[0256] The second vibration generator 30-2 according to the embodiments of the present specification may include one or more vibration devices 31H-31L arranged on at least one of the rearview mirror 180H, the overhead console 180I, the rear package interior material 180J, the glove box 180K, and the sun visor 180L. In one or more examples, the second vibration generator 30-2 including one or more vibrators 31H-31L can vibrate one or more of the aforementioned. For example, the second vibration generator 30-2 includes at least one or more of the eighth to twelfth vibrators 31H-31L, and can thereby output one or more channels of sound.

[0257] 13 to 17, the eighth vibrator 31H may be disposed on the rear-view mirror 180H and configured to indirectly or directly vibrate the rear-view mirror 180H to output sound. The eighth vibrator 31H may be disposed between the mirror housing connected to the main structure and the rear-view mirror 180H supported by the mirror housing. For example, the eighth vibrator 31H includes the vibration device 130 described with reference to FIGS. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A to 9C, and therefore a duplicate description thereof will be omitted. For example, in a vehicle, the farther the vibration device is from the position of the sound source or the object receiving the sound, or the position of the driver and / or passenger's (or passenger's) ears, the more the vibration device may be configured to enhance the sound of the low-frequency range. For example, the eighth vibrator 31H may be configured to enhance the sound of the low-frequency range. For example, the eighth vibrator 31H can be configured with one or more of the vibration devices described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figs. 3D, 5A, 6A, 9B, and 9C. In other embodiments, the eighth vibrator 31H can be configured with two or more vibration devices. For example, the eighth vibrator 31H can be configured with a vibrator that is the same or substantially the same as at least one or more of the first vibrator 31A, the fifth vibrator 31E, the sixth vibrator 31F, and the seventh vibrator 31G, but is not limited thereto. For example, the eighth vibrator 31H can be configured to output sound of 150Hz to 20kHz. For example, the eighth vibrator 31H can be expressed by terms such as a mirror speaker or an eighth speaker, but is not limited thereto.

[0258] 14, 15, and 17, the ninth vibrator 31I may be disposed in the overhead console 180I and configured to indirectly or directly vibrate a console cover of the overhead console 180I to output sound. According to an embodiment of the present specification, the overhead console 180I 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.

[0259] The ninth vibrator 31I is disposed between the console box and the console cover of the overhead console 180I, and can vibrate the console cover. For example, the ninth vibrator 31I is disposed between the console box and the console cover of the overhead console 180I, and can directly vibrate the console cover. For example, the ninth vibrator 31I includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A to 9C, and therefore a duplicate description thereof will be omitted. For example, in a vehicle, the farther the vehicle is from the position of a sound source or an object receiving sound transmission, or the position of the driver and / or passenger's (or passenger's) ears, the more the vehicle can be configured with a vibration device that enhances the sound of the low-frequency range. For example, the ninth vibrator 31I can be configured with a vibration device that enhances the sound of the low-frequency range. For example, the ninth vibrator 31I can be configured with one or more of the vibration devices described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figs. 3D, 5A, 6A, 9B, and 9C. In other embodiments, the ninth vibrator 31I can be configured with two or more vibration devices. For example, the ninth vibrator 31I can be configured with a vibrator that is the same or substantially the same as at least one or more of the first vibrator 31A, the fifth vibrator 31E, the sixth vibrator 31F, the seventh vibrator 31G, and the eighth vibrator 31H, but is not limited thereto. For example, the ninth vibrator 31I can be configured to output sound of 150Hz to 20kHz. For example, the ninth vibrator 31I can be expressed by terms such as a console speaker, a lighting speaker, or a ninth speaker, but is not limited thereto.

[0260] The transportation device according to the embodiment of the present specification may further include a central lighting box arranged in a central region of the roof interior material 180C, a central lighting fixture arranged in the central lighting box, and a central lighting cover covering the central lighting fixture. In this case, the ninth vibrator 31I may be further arranged between the central lighting box of the central lighting fixture and the central lighting cover to further vibrate the central lighting cover.

[0261] 13 and 14, the tenth vibrator 31J is disposed in the rear package interior material 180J and can be configured to indirectly or directly vibrate the rear package interior material 180J to output sound. The rear package interior material 180J can be disposed on the backs of the first to third rear passenger seats (BS1, BS2, BS3). For example, a part of the rear package interior material 180J can be disposed under the rear glass window 230C.

[0262] The tenth vibrator 31J is disposed on the rear surface of the rear package interior material 180J and can vibrate the rear package interior material 180J. For example, the tenth vibrator 31J includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, and therefore a duplicate description thereof will be omitted. For example, the tenth vibrator 31J may be configured as a vibration device in which the sound of the high frequency band is enhanced the closer it is to the position of the sound source or the object receiving the sound, or the position of the ears of the driver and / or passenger (or passenger) in the vehicle. For example, the tenth vibrator 31J may be configured as a vibration device in which the sound of the high frequency band is further enhanced. For example, the tenth vibrator 31J may be configured with one or more of the vibration devices described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figs. 3A, 4A, 8A, 8B, and 9A. In other embodiments, the tenth vibrator 31J may be configured with two or more vibration devices. For example, the tenth vibrator 31J may be configured with a vibrator that is the same or substantially the same as at least one or more of the second vibrator 31B, the third vibrator 31C, and the fourth vibrator 31D, but is not limited thereto. For example, the tenth vibrator 31J may be expressed by terms such as a rear speaker or a tenth speaker, but is not limited thereto.

[0263] According to an embodiment of the present specification, the rear package interior material 180J may include a first region corresponding to the rear of the first rear passenger seat (BS1), a second region corresponding to the rear of the second rear passenger seat (BS2), and a third region corresponding to the rear of the third rear passenger seat (BS3). According to an embodiment of the present specification, the tenth vibrator 31J may be arranged to vibrate at least one or more of the first to third regions of the rear package interior material 180J. For example, the tenth vibrator 31J may be arranged in each of the first and second regions of the rear package interior material 180J, or in each of the first to third regions. For example, the tenth vibrator 31J may be arranged in at least one or more of the first and second regions of the rear package interior material 180J, or in at least one or more of the first to third regions. For example, the tenth vibrator 31J may be configured to output sound of 150 Hz to 20 kHz. For example, the tenth vibrators 31J configured to vibrate the first to third regions of the rear package interior material 180J may have the same or different acoustic output characteristics. For example, the tenth vibrators 310J configured to vibrate at least one of the first to third regions of the rear package interior material 180J may have the same or different acoustic output characteristics.

[0264] 13 to 15, the eleventh vibrator 31K is disposed in the glove box 180K and can be configured to indirectly or directly vibrate the glove box 180K to output sound. The glove box 180K can be disposed in the dashboard 180A corresponding to the front of the passenger seat (PS).

[0265] The eleventh vibrator 31K is disposed on the inner surface of the glove box 180K and can vibrate the glove box 180K. For example, the eleventh vibrator 31K includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, and therefore a duplicate description thereof will be omitted. For example, in a vehicle, the farther the vibration device is from the position of a sound source or an object receiving the sound, or the position of the ears of the driver and / or passenger (or passenger), the more the vibration device may be configured with enhanced low-frequency sound. For example, the eleventh vibrator 31K may be configured with a vibration device with enhanced low-frequency sound. For example, the eleventh vibrator 31K may be configured with one or more of the vibrators described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figs. 3D, 5A, 6A, 9B, and 9C. In other embodiments, the eleventh vibrator 31K may be configured with two or more vibrators. For example, the eleventh vibrator 31K may be configured with at least one or more of the first vibrator 31A, the fifth vibrator 31E, the sixth vibrator 31F, the seventh vibrator 31G, the eighth vibrator 31H, and the ninth vibrator 31I, but is not limited thereto. For example, the eleventh vibrator 31K may be configured to output sound of 150Hz to 20kHz, and may be one or more of a woofer, a mid-woofer, and a subwoofer. For example, the eleventh vibrator 31K may be expressed by terms such as a glove box speaker or an eleventh speaker, but is not limited thereto.

[0266] 15, the twelfth vibrator 31L is disposed on the sun visor 180L and can be configured to indirectly or directly vibrate the sun visor 180L to output sound. The sun visor 180L can include a first sun visor 180L1 corresponding to the driver's seat (DS) and a second sun visor 180L2 corresponding to the passenger's seat (PS).

[0267] The twelfth vibrator 31L is disposed on at least one of the first sun visor 180L1 and the second sun visor 180L2, and can indirectly or directly vibrate at least one of the first sun visor 180L1 and the second sun visor 180L2. For example, the twelfth vibrator 31L includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, and therefore a duplicate description thereof will be omitted. For example, in a vehicle, the farther the vibration device is from the position of a sound source or an object receiving sound, or the position of the driver and / or passenger's (or passenger's) ears, the more the vibration device can be configured with enhanced low-frequency sound. For example, the twelfth vibrator 31L can be configured with a vibration device with enhanced low-frequency sound. For example, the twelfth vibrator 31L can be configured with one or more of the vibrators described with reference to Figures 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figures 3D, 5A, 6A, 9B, and 9C. In other embodiments, the twelfth vibrator 31L can be configured with two or more vibrators. For example, the twelfth vibrator 31L can be configured with at least one or more of the first vibrator 31A, the fifth vibrator 31E, the sixth vibrator 31F, the seventh vibrator 31G, the eighth vibrator 31H, the ninth vibrator 31I, and the eleventh vibrator 31K that are the same or substantially the same, but are not limited thereto. For example, the twelfth vibrator 31L can be configured to output sound of 150 Hz to 20 kHz. For example, the twelfth vibrator 31L can be expressed by terms such as a sun visor speaker or a twelfth speaker, but is not limited thereto.

[0268] According to an embodiment of the present specification, at least one of the first sun visor 180L1 and the second sun visor 180L2 may further include a sun visor mirror. In this case, the twelfth vibrator 31L may be configured to indirectly or directly vibrate at least one of the first sun visor 180L1 and the second sun visor 180L2. The twelfth vibrator 31L that vibrates the sun visor mirror includes the vibration device 130 described with reference to Figures 3D, 5A, 6A, 9B, and 9C, and therefore a duplicate description thereof will be omitted.

[0269] 13 and 14, the transportation device according to the embodiment of the present specification may further include a third vibration generating device 30-3 disposed on the glass window 230. For example, the transportation device according to the embodiment of the present specification may include the third vibration generating device 30-3 instead of at least one of the first and second vibration generating devices 30-1 and 30-2, or may include all of the first to third vibration generating devices 30-1, 30-2, and 30-3.

[0270] The third vibration generator 30-3 may include one or more vibrators 31M-31P arranged on the glass window 230. For example, the third vibration generator 30-3 may include at least one of the thirteenth to sixteenth vibrators 31M-31P, thereby outputting sound of one or more channels. For example, the third vibration generator 30-3 may be expressed by terms such as a window speaker, a transparent sound generator, a transparent speaker, or an opaque speaker, but is not limited thereto.

[0271] At least one of the thirteenth to sixteenth vibrators 31M to 31P according to the embodiments of the present specification can be configured to indirectly or directly vibrate the window glass 230 to output sound. For example, at least one of the thirteenth to sixteenth vibrators 31M to 31P can include at least one of the vibration devices 130 described with reference to Figures 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A to 9C, and can be configured to be transparent, semi-transparent, or opaque.

[0272] According to an embodiment of the present specification, the glass window 230 may include a front glass window 230A, a side glass window 230B, and a rear glass window 230C. According to an embodiment of the present specification, the glass window 230 may further include a roof glass window 230D. For example, when the transportation device includes the roof glass window 230D, a part of the area of ​​the roof frame and the roof interior material 180C may be replaced with the roof glass window 230D. For example, when the transportation device includes the roof glass window 230D, the third vibrator 31C may be configured to indirectly or directly vibrate an edge portion (or a peripheral portion) of the roof interior material 180C surrounding the roof glass window 230D to output sound.

[0273] 13 to 15, the thirteenth vibrator 31M according to the embodiment of the present specification may be disposed on the front glass window 230A and configured to output sound by vibration of itself or indirectly or directly vibrating the front glass window 230A to output sound. For example, the thirteenth vibrator 31M includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A to 9C, and therefore a duplicate description thereof will be omitted. For example, the further away from the position of the sound source or the object receiving the sound in the vehicle, or the position of the driver and / or passenger's (or passenger's) ears, the more the vibrator may be configured with a vibration device that enhances the sound of the low frequency range. The thirteenth vibrator 31M may be configured with a vibration device that enhances the sound of the low frequency range. For example, the thirteenth vibrator 31M can be configured with one or more of the vibration devices described with reference to Figures 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figures 3D, 5A, 6A, 9B, and 9C. In other embodiments, the thirteenth vibrator 31M can be configured with two or more vibration devices. For example, the thirteenth vibrator 31M can be configured with a vibrator that is the same or substantially the same as at least one or more of the first vibrator 31A, the fifth vibrator 31E, the sixth vibrator 31F, the seventh vibrator 31G, the eighth vibrator 31H, the ninth vibrator 31I, and the eleventh vibrator 31K, but is not limited thereto. For example, the thirteenth vibrator 31M can be configured to be transparent, translucent, or opaque.

[0274] According to an embodiment of the present specification, the front glass window 230A may include a first region corresponding to a driver's seat (DS), a second region corresponding to a passenger's seat (PS), and a third region (or intermediate region) between the first region and the second region. For example, the thirteenth vibrator 31M may be arranged in at least one of the first to third regions of the front glass window 230A. For example, the thirteenth vibrator 31M may be arranged in each of the first and second regions of the front glass window 230A, or in each of the first to third regions. For example, the thirteenth vibrator 31M may be arranged in at least one of the first and second regions of the front glass window 230A, or in at least one of the first to third regions. For example, the thirteenth vibrators 31M arranged in each of the first to third regions of the front glass window 230A may have the same or different acoustic output characteristics. For example, the thirteenth vibrator 31M arranged in one or more of the first to third regions of the front glass window 230A may have the same or different sound output characteristics. For example, the thirteenth vibrator 31M may be configured to output sound of 150 Hz to 20 kHz. For example, the thirteenth vibrator 31M may be expressed by terms such as a front window speaker or a thirteenth speaker, but is not limited thereto.

[0275] 14 to 16 and 18, the fourteenth vibrator 31N according to the embodiments of the present specification is disposed on the side glass window 230B and can be configured to output sound by vibrating itself or to indirectly or directly vibrate the side glass window 230B to output sound.

[0276] According to an embodiment of the present specification, the side glass window 230B may 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.

[0277] According to an embodiment of the present specification, the fourteenth vibrator 31N can be disposed in at least one of the first to fourth side glass windows 230B1 to 230B4. For example, at least one of the first to fourth side glass windows 230B1 to 230B4 can include at least one fourteenth vibrator 31N.

[0278] According to the embodiment of the present specification, the 14th vibrator 31N may be arranged in at least one of the first to fourth side glass windows 230B1 to 230B4 and configured to output sound by vibration of itself or indirectly or directly vibrate the corresponding side glass windows 230B1 to 230B4 to output sound. For example, the 14th vibrator 31N includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A to 9C, so that a duplicated description thereof will be omitted. For example, the 14th vibrator 31M may be configured as a vibration device in which the sound of the high frequency band is strengthened as it is closer to the position of the sound source or the object receiving the sound, or the position of the ears of the driver and / or passenger (or passenger) in the vehicle. For example, the 14th vibrator 31M may be configured as a vibration device in which the sound of the high frequency band is further improved. For example, the 14th vibrator 31M can be configured with one or more of the vibrators described with reference to Figures 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figures 3A, 4A, 8A, 8B, and 9A. In other embodiments, the 14th vibrator 31M can be configured with two or more vibrators. For example, the 14th vibrator 31N can be configured with at least one or more of the second vibrator 31B, the third vibrator 31C, the fourth vibrator 31D, and the tenth vibrator 31J that are the same or substantially the same, but are not limited thereto. For example, the 14th vibrator 31N can be configured to be transparent, semi-transparent, or opaque. For example, the 14th vibrator 31N can be configured to output sound of 150 Hz to 20 kHz. For example, the fourteenth vibrator 31N arranged in at least one of the first to fourth side glass windows 230B1 to 230B4 may have the same or different sound output characteristics. For example, the fourteenth vibrator 31N may be configured to output sound of 150 Hz to 20 kHz. For example, the fourteenth vibrator 31N may be expressed by terms such as a side window speaker or a fourteenth speaker, but is not limited thereto.

[0279] Referring to FIG. 13, the fifteenth vibrator 31O according to an embodiment of the present specification is disposed on the rear glass window 230C and can be configured to output sound by vibrating itself or to output sound by indirectly or directly vibrating the rear glass window 230C.

[0280] According to an embodiment of the present specification, the rear glass window 230C may include a first region corresponding to the rear of the first rear passenger seat (BS1), a second region corresponding to the rear of the second rear passenger seat (BS2), and a third region corresponding to the rear of the third rear passenger seat (BS3). According to an embodiment of the present specification, the fifteenth vibrator 31O may be disposed in each of the first to third regions of the rear glass window 230C. For example, the fifteenth vibrator 31O may be disposed in at least one of the first to third regions of the rear glass window 230C. For example, the fifteenth vibrator 31O may be disposed in each of the first and second regions of the rear glass window 31C, or in each of the first to third regions. For example, the fifteenth vibrator 31O may be disposed in at least one of the first and second regions of the rear glass window 240C, or in at least one of the first to third regions. For example, the fifteenth vibrator 31O includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, and therefore a duplicate description thereof will be omitted. For example, in a vehicle, the farther the vehicle is from the position of a sound source or an object receiving sound transmission, or the position of the driver and / or passenger's (or passenger's) ears, the more the vibration device may be configured with enhanced low-frequency sound. For example, the fifteenth vibrator 31O may be configured with a vibration device with improved low-frequency sound. For example, the fifteenth vibrator 31O may be configured with one or more vibration devices among the vibration devices described with reference to Figs. 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figs. 3D, 5A, 6A, 9B, and 9C. In other embodiments, the fifteenth vibrator 31O can be configured with two or more vibration devices. For example, the fifteenth vibrator 31O can be configured with a vibrator identical or substantially identical to at least one or more of the first vibrator 31A, the fifth vibrator 31E, the sixth vibrator 31F, the seventh vibrator 31G, the eighth vibrator 31H, the ninth vibrator 31I, the eleventh vibrator 31K, and the thirteenth vibrator 31M, but is not limited thereto. For example, the fifteenth vibrator 31O can be configured to be transparent, translucent, or opaque. For example, the fifteenth vibrator 31O can be configured to output sound of 150 Hz to 20 kHz.For example, the 15th vibrator 31O arranged in each of the first to third regions of the rear glass window 230C may have the same or different acoustic output characteristics. For example, the 15th vibrator 31O arranged in at least one of the first to third regions of the rear glass window 230C may have the same or different acoustic output characteristics. For example, the 15th vibrator 310 arranged in at least one of the first and second regions of the rear glass window 230C may be configured to output sound of 150 Hz to 20 kHz, or may be one or more of a woofer, a mid-woofer, and a subwoofer. For example, the 15th vibrator 31O may be expressed by terms such as a rear window speaker or a 15th speaker, but is not limited thereto.

[0281] Referring to FIG. 18, the 16th vibrator 31P according to an embodiment of the present specification is arranged on the roof glass window 230D and can be configured to output sound by vibrating itself or to output sound by indirectly or directly vibrating the roof glass window 230D.

[0282] The roof glass window 240D according to the embodiment of the present specification may be disposed on the front seats (DS, PS). For example, the 16th vibrator 31P may be disposed in the middle area of ​​the roof glass window 230D. For example, the 16th vibrator 31P includes the vibration device 130 described with reference to Figs. 3A, 3D, 4A, 8A, 8B, and 9A to 9C, and therefore a duplicate description thereof will be omitted. For example, the 16th vibrator 31P may be configured as a vibration device in which the sound of the high frequency band is enhanced the closer it is to the position of the sound source or the object receiving the sound transmission, or the position of the ears of the driver and / or passenger (or passenger) in the vehicle. For example, the 16th vibrator 31P may be configured as a vibration device in which the sound of the high frequency band is enhanced the closer it is to the position of the sound source or the object receiving the sound transmission, or the position of the ears of the driver and / or passenger (or passenger). For example, the 16th vibrator 31P can be configured with one or more of the vibrators described with reference to Figures 3A, 3D, 4A, 5A, 6A, 8A, 8B, and 9A-9C, for example, Figures 3A, 4A, 8A, 8B, and 9A. In other embodiments, the 16th vibrator 31P can be configured with two or more vibrators. For example, the 16th vibrator 31P can be configured with at least one or more of the second vibrator 31B, the third vibrator 31C, the fourth vibrator 31D, the tenth vibrator 31J, and the fourteenth vibrator 31N, but is not limited thereto. For example, the 16th vibrator 31P can be configured to be transparent, semi-transparent, or opaque. For example, the 16th vibrator 31P can be configured to output sound of 150 Hz to 20 kHz. For example, the 16th vibrator 31P can be expressed by terms such as a roof window speaker or a 16th speaker, but is not limited to these.

[0283] The roof glass window 230D according to other embodiments of the present specification may be disposed above the front seats (DS, PS), or above the front seats (DS, PS) and the rear seats (BS1, BS2, BS3). For example, the roof glass window 230D may include a first region corresponding to the front seats (DS, PS) and a second region corresponding to the rear seats (BS1, BS2, BS3). The roof glass window 230D may also include a third region between the first region and the second region. For example, the 16th vibrator 31P may be disposed 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 vibrator 31P may be configured to output sound of 150 Hz to 20 kHz. For example, the 16th vibrators 31P disposed in at least one of the first to third regions of the roof glass window 230D may have the same or different sound output characteristics.

[0284] 13 to 15, a vehicle according to an embodiment of the present specification may further include a woofer speaker (WS) disposed in at least one of the dashboard 180A, the door frame 180B, and the rear package interior material 180J.

[0285] The woofer speaker (WS) according to the embodiment of the present specification may be one or more of a woofer, a mid-woofer, and a subwoofer. For example, the woofer speaker (WS) may be expressed as a speaker that outputs sound of 60 Hz to 150 Hz, but is not limited thereto. Therefore, the woofer speaker (WS) can improve the characteristics of the low-frequency range of the sound output to the indoor space by outputting sound of 60 Hz to 150 Hz.

[0286] According to an embodiment of the present specification, the woofer speaker (WS) can be arranged in at least one of the first and second regions of the dashboard 180A. According to an embodiment of the present specification, the woofer speaker (WS) can be arranged in each of the first to fourth door frames of the door interior material 180D and exposed to the lower regions of each of the first to fourth door interior materials 180D1 to 180D4 of the door interior material 180D. For example, the woofer speaker (WS) can be arranged in at least one of the first to fourth door frames of the door interior material 180D and exposed to the lower regions of at least one of the first to fourth door interior materials 180D1 to 180D4 of the door interior material 180D. According to an embodiment of the present specification, the woofer speaker (WS) can be arranged in at least one of the first and second regions of the rear package interior material 180J. For example, the fourth vibrator 31D arranged in the lower region of each of the first to fourth door interior materials 180D1 to 180D4 can be replaced with a woofer speaker (WS). For example, the fourth vibrator 31D arranged in at least one lower region of the first to fourth door interior materials 180D1 to 180D4 can be replaced with a woofer speaker (WS).

[0287] 13 to 15, a vehicle according to an embodiment of the present disclosure may further include an instrument panel device 160 and an infotainment device 170.

[0288] The instrument panel device 160 according to the embodiment of the present specification can be arranged in a first area of ​​the dashboard 180A so as to face the driver's seat (DS). The instrument panel device 160 can include a display (or a first display) 161 arranged in the first area of ​​the dashboard 180A so as to face the driver's seat (DS).

[0289] The first display 161 includes any one of the devices described with reference to Fig. 1, Fig. 2, and Fig. 10, and therefore a duplicated description thereof will be omitted. For example, the instrument panel device 160 can output, to the driver's seat (DS), a sound generated by vibration of a vibrating member (or a display panel) 100 due to vibration of one or more vibration generating devices 30 included in the first display 161. For example, the vibration generating devices 30 arranged in the first display 161 of the instrument panel device 160 can be configured to output a sound of 150 Hz to 20 kHz.

[0290] The infotainment device 170 may be located in a third area of ​​the dashboard 180A.

[0291] An infotainment device 170 according to an embodiment of the present disclosure may be secured in an upright position on a third area of ​​the dashboard 180A.

[0292] The infotainment device 170 according to another embodiment of the present specification may be installed in a liftable manner in the third region of the dashboard 180A. For example, the infotainment device 170 may be stored or accommodated inside the dashboard 180A when the vehicle is powered off or operated by the passenger, and may protrude above the dashboard 180A when the vehicle is powered on or operated by the passenger.

[0293] An infotainment device 170 according to an embodiment of the present disclosure may include a display (or a second display) 171 disposed in a third area of ​​the dashboard 180A, and a display lift unit.

[0294] The second display 171 includes any one of the devices described with reference to Fig. 1, Fig. 2, and Fig. 10, and therefore a duplicated description thereof will be omitted. For example, the infotainment device 170 can output, to the driver's seat (DS) side, sound generated by vibration of a display panel due to vibration of one or more vibration generators 30 included in the second display 171. For example, the one or more vibration generators 30 arranged in the second display 171 of the infotainment device 170 can be configured to output sound of 150 Hz to 20 kHz.

[0295] The display lifting device is disposed in the third region of the dashboard 180A and can support the second display 171 so that it can be raised and lowered. For example, the display lifting device can raise the second display 171 to protrude above the dashboard 180A when the transportation device is powered on or when the passenger operates the display lifting device. The display lifting device can lower the second display 171 to be stored or accommodated inside the dashboard 180A when the transportation device is powered off or when the passenger operates the display lifting device.

[0296] The transportation device according to the embodiments of the present specification outputs sound to one or more of the indoor space and the outdoor space through at least one of the first vibration generating device 30-1 arranged between the main structure and the interior material 180, the second vibration generating device 30-2 arranged on the interior material 180 exposed to the indoor space, and the third vibration generating device 30-3 arranged on the glass window 230, thereby making it possible to output sound using one or more of the exterior material and the interior material 180 as an acoustic diaphragm, and to output one or more channels of sound and / or multi-channel surround stereo sound. In addition, the vehicle device according to the embodiments of the present specification may output sound by using at least one display panel among at least one display 161, 171 in the instrument panel device 160 and the infotainment device 170 as an acoustic diaphragm, and may output multi-channel sound and / or multi-channel surround stereo sound that can be more realistically felt through each of the first to third vibration generating devices 30-1, 30-2, 30-3 and the instrument panel device 160 and the infotainment device 170.

[0297] FIG. 19 illustrates the acoustic output characteristics of a device according to an embodiment of the present disclosure.

[0298] The acoustic output characteristics can be measured by an acoustic measurement device. The acoustic measurement device can be composed of a control PC, a sound card for transmitting and receiving sound, an amplifier for amplifying and transmitting the sound generated from the sound card to the vibration device, and a microphone for collecting the sound generated from the display panel through the vibration device. For example, the microphone can be placed at the center of the vibration device, and the distance between the display panel and the microphone can be 30 cm. The microphone can be placed perpendicular to the vibration device to measure the sound. The sound collected by the microphone is input to the control PC through the sound card, and the sound is checked by a control program to analyze the sound of the vibration device. For example, the frequency response characteristics in the frequency range of 20Hz to 20kHz can be measured using a pulse program. The measurement can be performed by applying 1 / 3 octave smoothing to a sine sweep from 0.15kHz to 20kHz.

[0299] In FIG. 19, the horizontal axis represents frequency (in hertz) (Hz), and the vertical axis represents sound pressure level (SPL (in decibels) (dB). FIG. 19 shows the acoustic output characteristics of a single crystal.

[0300] 19, it can be seen that the sound pressure at frequencies between 0.2 kHz and 1 kHz is approximately 53.2 dB, and the sound pressure at frequencies between 1 kHz and 10 kHz is approximately 57.6 dB, and the sound pressure at frequencies between 10 kHz and 20 kHz is approximately 65.4 dB, and the sound pressure at frequencies between 0.2 kHz and 20 kHz is approximately 54.9 dB.

[0301] FIG. 20 illustrates the acoustic output characteristics of a device according to another embodiment of the present disclosure.

[0302] The method for measuring the acoustic output characteristics is the same as that described with reference to FIG. 19, and therefore will not be described here.

[0303] Fig. 20 shows the acoustic output characteristics of the polycrystal. Referring to Fig. 20, it can be seen that the sound pressure at frequencies of 0.2 kHz to 1 kHz is approximately 63.3 dB, and the sound pressure at frequencies of 1 kHz to 10 kHz is approximately 69.5 dB. It can also be seen that the sound pressure at frequencies of 10 kHz to 20 kHz is approximately 80.3 dB, and the sound pressure at frequencies of 0.2 kHz to 20 kHz is approximately 67.5 dB. It can be seen that the sound pressure characteristics are increased compared to Fig. 19 which shows the single crystal.

[0304] FIG. 21 illustrates the acoustic output characteristics of a device according to another embodiment of the present disclosure.

[0305] The method for measuring the acoustic output characteristics is the same or substantially the same as that described with reference to FIG. 19, and therefore will not be described here.

[0306] In FIG. 21, the solid line represents the acoustic output characteristics of the vibration device of FIGS. 3A to 3C, and the dotted line represents the acoustic output characteristics of the polycrystal.

[0307] Referring to FIG. 21, it can be seen that the sound pressure at frequencies of 0.2 kHz to 1 kHz, which is the solid line, is about 67.5 dB, and the sound pressure at frequencies of 1 kHz to 10 kHz is about 73.9 dB. It can also be seen that the sound pressure at frequencies of 10 kHz to 20 kHz is about 80.7 dB, and the sound pressure at frequencies of 0.2 kHz to 20 kHz is about 74.2 dB. As explained in FIG. 20, which is the dotted line, it can be seen that the sound pressure at frequencies of 0.2 kHz to 1 kHz is about 63.3 dB, and the sound pressure at frequencies of 1 kHz to 10 kHz is about 69.5 dB. It can also be seen that the sound pressure at frequencies of 10 kHz to 20 kHz is about 80.3 dB, and the sound pressure at frequencies of 0.2 kHz to 20 kHz is about 67.5 dB. Therefore, it can be seen that the average sound pressure increases by about 7 dB or more when composed of single crystals and polycrystals according to the embodiments of this specification compared to polycrystals. It can also be seen that the sound pressure increases from the low to mid range without any loss of sound pressure in the high range of 8 kHz or more. The bass band may be 500 Hz or less, and the mid-range band may be 500 Hz to 8 kHz or less, but is not limited thereto.

[0308] FIG. 22 is a diagram illustrating the acoustic output characteristics of a device according to another embodiment of the present disclosure.

[0309] The method for measuring the acoustic output characteristics is the same or substantially the same as that described with reference to FIG. 19, and therefore will not be described here.

[0310] FIG. 22 shows the acoustic output characteristics depending on the size of the polycrystal. The solid line indicates a polycrystal whose horizontal and vertical lengths are both 12 cm, and the dotted line indicates a polycrystal whose horizontal and vertical lengths are both 6 cm.

[0311] 22, it can be seen that the sound pressure at frequencies of 0.2 kHz to 1 kHz, indicated by the solid line, is about 75.2 dB, and the sound pressure at frequencies of 1 kHz to 10 kHz is about 77.5 dB. It can also be seen that the sound pressure at frequencies of 10 kHz to 20 kHz is about 84.6 dB, and the sound pressure at frequencies of 0.2 kHz to 20 kHz is about 77.9 dB. It can also be seen that the sound pressure at frequencies of 0.2 kHz to 1 kHz, indicated by the dotted line, is about 72.6 dB, and the sound pressure at frequencies of 1 kHz to 10 kHz is about 72.3 dB. It can also be seen that the sound pressure at frequencies of 10 kHz to 20 kHz is about 92.1 dB, and the sound pressure at frequencies of 0.2 kHz to 20 kHz is about 72.4 dB. It can therefore be seen that as the size (or area) of the first vibrating part 131, which is polycrystalline, increases, the average sound pressure increases by about 6 dB or more. According to the embodiment of the present specification, the first vibrating part 131 has a vertical (d 33 It can be seen that the larger the area of ​​the first vibrating portion 131 is, the more the vibration characteristics can be improved, and therefore the larger the area of ​​the first vibrating portion 131 is, the more the vibration characteristics can be improved, and therefore the sound pressure characteristics can be further improved.

[0312] FIG. 23 is a diagram illustrating the acoustic output characteristics of a device according to another embodiment of the present disclosure.

[0313] The method for measuring the acoustic output characteristics is the same or substantially the same as that described with reference to FIG. 19, and therefore will not be described here.

[0314] FIG. 23 shows the acoustic output characteristics depending on the interval between the single crystals. For example, in FIG. 5A and FIG. 6A, the acoustic output characteristics depending on the interval between the second vibrating parts 132-1 and 132-2. In FIG. 23, the dotted line indicates that the interval between the single crystals is 0 cm, the dashed line indicates that the interval between the single crystals is 4 cm, and the solid line indicates that the interval between the single crystals is 8 cm. It can be seen that the sound pressure at frequencies of 0.2 kHz to 1 kHz of the dotted line is about 46.8 dB, and the sound pressure at frequencies of 1 kHz to 10 kHz is about 58.0 dB. It can also be seen that the sound pressure at frequencies of 10 kHz to 20 kHz is about 68.5 dB, and the sound pressure at frequencies of 0.2 kHz to 20 kHz is about 55.6 dB. It can also be seen that the sound pressure at frequencies of 0.2 kHz to 1 kHz of the dashed line is about 55.3 dB, and the sound pressure at frequencies of 1 kHz to 10 kHz is about 61.3 dB. It can be seen that the sound pressure at frequencies between 10kHz and 20kHz is approximately 66.7dB, and the sound pressure at frequencies between 0.2kHz and 20kHz is approximately 60.0dB. It can also be seen that the sound pressure at frequencies between 0.2kHz and 1kHz, which is the solid line, is approximately 47.5dB, and the sound pressure at frequencies between 1kHz and 10kHz is approximately 57.9dB. It can also be seen that the sound pressure at frequencies between 10kHz and 20kHz is approximately 65.3dB, and the sound pressure at frequencies between 0.2kHz and 20kHz is approximately 55.4dB.

[0315] The single crystals according to the examples of this specification having a (011) crystal orientation have a d 32 Since the crystal vibrates in a vibration mode (or XY axis vibration), the aspect ratio can affect the vibration characteristics. A single crystal with a (011) crystal orientation has a d 33 Since there is also a vibration mode (Z-axis vibration), if the aspect ratio and vibration interference on the single crystal are configured to be small, d 32 The vibration mode (or XY axis vibration) becomes the dominant vibration mode, and the sound pressure in the low frequency range can be improved.

[0316] In the case of 0 cm where there is no gap between the single crystals with (011) crystal orientation, the single crystals operate as one, so the aspect ratio is reduced, resulting in d 33It can be seen that the vibration mode (Z-axis vibration) becomes dominant and the sound pressure in the high frequency range, for example, 10 kHz to 20 kHz, increases, but the sound pressure in the low frequency range, for example, 0.2 kHz to 1 kHz, decreases.

[0317] When the spacing between single crystals with (011) crystal orientation is 4 cm, the d 33 Without interfering with the vibration mode (Z-axis vibration) 32 It can be seen that since it has the effect of reinforcing the vibration mode (or XY axis vibration), the sound pressure in the low frequency range, for example 0.2 kHz to 1 kHz, increases, and the sound pressure in the mid frequency range, for example 1 kHz to 10 kHz, increases.

[0318] When the distance between single crystals with (011) crystal orientation is 8 cm, the d 32 It can be seen that the effect of reinforcing the vibration mode (or XY axis vibration) becomes smaller, so that the sound pressure decreases from the low to high frequency ranges.

[0319] The vibration device according to the embodiment of the present specification may be applied to a vibration device disposed in an apparatus. The apparatus according to the embodiment of the present specification may be applied to a mobile device, a video phone, a smart watch, a watch phone, a wearable apparatus, a foldable apparatus, a rollable apparatus, a bendable apparatus, a flexible apparatus, a curved apparatus, a sliding apparatus, a variable apparatus, an electronic organizer, an electronic book, a portable multimedia player (PMP), a personal digital assistant (PDA), an MP3 player, a mobile medical device, a desktop PC, a laptop PC, a netbook computer, a workstation, a navigation system, a vehicle navigation system, a vehicle display device, a vehicle device, a theater device, a theater display device, a television, a wallpaper device, a signage device, a game device, a notebook, a monitor, a camera, a video camera, a home appliance, etc. The vibration device of the present specification may be applied to an organic light-emitting lighting device or an inorganic light-emitting lighting device. When the vibration device is applied to a lighting device, the lighting device may play the role of lighting and a speaker. When the vibration device of the present specification is applied to a mobile device or the like, the vibration device may be one or more of a speaker, a receiver, and a haptic, but is not limited thereto.

[0320] An apparatus according to an embodiment of the present invention can be described as follows.

[0321] An apparatus according to an embodiment of the present specification includes a vibration member and a vibration device located on a rear surface of the vibration member and vibrating the vibration member, the vibration device including at least one or more first vibration parts and a plurality of second vibration parts different from the at least one or more first vibration parts, and the at least one or more first vibration parts can be located around the plurality of second vibration parts.

[0322] According to some embodiments of the present disclosure, at least one or more first vibration parts may be made of polycrystalline ceramic, and the plurality of second vibration parts may be made of single crystal ceramic.

[0323] According to some embodiments of the present disclosure, at least one or more first vibrating portions may have a rectangular shape, and the vertical length of the rectangular shape may be longer than the horizontal length.

[0324] According to some embodiments of the present disclosure, at least one first vibrating portion may be configured in a square or circular shape.

[0325] According to some embodiments of the present disclosure, the plurality of second vibration units may include a 2-1 vibration unit and a 2-2 vibration unit. For example, the plurality of second vibration units may include a first vibration unit and a second vibration unit.

[0326] According to some embodiments of the present specification, the horizontal length of each of the 2-1 vibration part and the 2-2 vibration part can be longer than the vertical length. For example, the horizontal length of each of the first vibration part and the second vibration part among the plurality of second vibration parts can be longer than the vertical length of the corresponding one of the first vibration part and the second vibration part among the plurality of second vibration parts.

[0327] According to some embodiments of the present disclosure, the device may further include a first partition member surrounding the first vibration portion, a second partition member surrounding the 2-1 vibration portion, and a third partition member surrounding the 2-2 vibration portion. For example, the device may further include a first partition member surrounding a corresponding first vibration portion of at least one first vibration portion, a second partition member surrounding a first vibration portion of the plurality of second vibration portions, and a third partition member surrounding a second vibration portion of the plurality of second vibration portions.

[0328] According to some embodiments of the present specification, the at least one or more first vibration units may include a 1-1 vibration unit, a 1-2 vibration unit, a 1-3 vibration unit, and a 1-4 vibration unit, and the plurality of second vibration units may include a 2-1 vibration unit and a 2-2 vibration unit. For example, the at least one or more first vibration units may include a first vibration unit, a second vibration unit, a third vibration unit, and a fourth vibration unit, and the plurality of second vibration units may include a first vibration unit and a second vibration unit.

[0329] According to some embodiments of the present specification, the 1-1 vibration part to the 1-4 vibration part can be around the 2-1 vibration part and the 2-2 vibration part. For example, the first vibration part, the second vibration part, the third vibration part and the fourth vibration part of at least one or more first vibration parts can be around the first vibration part and the second vibration part of the plurality of second vibration parts.

[0330] According to some embodiments of the present specification, the device may further include a first partition member surrounding the 1-1 vibration portion and the 1-2 vibration portion, a second partition member surrounding the 1-3 vibration portion and the 1-4 vibration portion, and a third partition member surrounding the 2-1 vibration portion and the 2-2 vibration portion. For example, the device may further include a first partition member surrounding the first vibration portion and the second vibration portion of at least one or more first vibration portions, a second partition member surrounding the third vibration portion and the fourth vibration portion of at least one or more first vibration portions, and a third partition member surrounding the first vibration portion and the second vibration portion of the plurality of second vibration portions.

[0331] According to some embodiments of the present specification, each of the 1-1 vibration section to the 1-4 vibration section and each of the 2-1 vibration section and the 2-2 vibration section may be configured to receive an independent acoustic signal. For example, each of the first vibration section, the second vibration section, the third vibration section, and the fourth vibration section of at least one or more first vibration sections and each of the first vibration section and the second vibration section of the plurality of second vibration sections may be configured to receive an independent acoustic signal.

[0332] According to some embodiments of the present specification, each of at least one or more first vibration sections and multiple second vibration sections may include a vibration layer, a first electrode section on a first surface of the vibration layer, and a second electrode section on a surface different from the first surface.

[0333] According to some embodiments of the present disclosure, the electrode assembly may further include a first cover member on the first electrode portion, and a second cover member on the second electrode portion.

[0334] According to some embodiments herein, the first cover member and the second cover member may be made of different materials.

[0335] According to some embodiments herein, any one of the first cover member and the second cover member may include an adhesive member.

[0336] According to some embodiments herein, the device may include a first adhesive layer between the first cover member and the first electrode portion, and a second adhesive layer between the second cover member and the second electrode portion.

[0337] According to some embodiments herein, the vibrating member may include a metallic material or may include one or more of the following single or composite non-metallic materials: wood, rubber, plastic, glass, carbon, fiber, cloth, paper, mirror, and leather.

[0338] According to some embodiments herein, the vibrating member may include one or more of a display panel having pixels for displaying images, a light emitting diode lighting panel, an organic light emitting lighting panel, and an inorganic light emitting lighting panel.

[0339] According to some embodiments herein, the vibrating member may include one or more of a display panel having pixels for displaying an image, a screen panel onto which an image is projected from a display device, a lighting panel, a signage panel, an interior material of a vehicle, a glass window of a vehicle, an exterior material of a vehicle, a ceiling material of a building, an interior material of a building, a glass window of a building, an interior material of an aircraft, a glass window of an aircraft, metal, wood, rubber, plastic, glass, carbon, fiber, cloth, paper, leather, and a mirror.

[0340] According to some embodiments herein, the vibration member may include a first region and a second region, and the vibration device may be disposed in at least one of the first region and the second region.

[0341] An apparatus according to an embodiment of the present specification includes a vibration member and a vibration device located on a rear surface of the vibration member and vibrating the vibration member, the vibration device including a plate connected to the rear surface of the vibration member, the vibration device including at least one or more first vibration parts and a plurality of second vibration parts different from the at least one or more first vibration parts, and the at least one or more first vibration parts can be located around the plurality of second vibration parts.

[0342] According to some embodiments herein, the plate may include a number of openings positioned to focus sound waves onto the vibrating member.

[0343] According to some embodiments herein, the plate may be configured in a mesh form.

[0344] A device according to an embodiment of the present specification includes an exterior material covering a main structure, an interior material covering one or more of the main structure and the exterior material, and one or more vibration generating devices in one or more of the exterior material, the interior material, the area between the main structure and the exterior material, and the area between the main structure and the interior material, the one or more vibration generating devices including a vibration member and a vibration device on a rear surface of the vibration member for vibrating the vibration member, the vibration device including at least one or more first vibration parts and a second vibration part having a plurality of vibration parts different from the at least one first vibration parts, the at least one first vibration parts can be around the plurality of second vibration parts. The vibration member of the one or more vibration generating devices is an exterior material or an interior material, and one or more of the exterior material and the interior material can output sound by vibration of the one or more vibration generating devices.

[0345] According to some embodiments herein, the interior material may include one or more of wood, rubber, plastic, glass, carbon, fiber, cloth, paper, metal, and leather.

[0346] According to some embodiments of the present disclosure, the 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 handle interior material, a floor interior material, and a rear package interior material of a vehicle, and one or more vibration generating devices are capable of vibrating at least one of the dashboard, the pillar interior material, the roof interior material, the door interior material, the seat interior material, the handle interior material, the floor interior material, and the rear package interior material.

[0347] According to some embodiments of the present disclosure, the device may further include a glass window and a transparent vibration generating device disposed on the glass window.

[0348] According to some embodiments of the present specification, the glass window includes at least one of a front glass window, a side glass window, a rear glass window and a roof glass window of a vehicle, and the transparent vibration generating device is capable of vibrating at least one of the front glass window, the side glass window, the rear glass window and the roof glass window.

[0349] According to some embodiments of the present specification, a vibration generating device positioned closer to the ears of a passenger of the device can be a vibration device in which the first vibration part is positioned more centrally on the vibration member than the second vibration part, and a vibration generating device positioned farther from the ears of the passenger can be a vibration device in which the second vibration part is positioned more centrally on the vibration member than the first vibration part.

[0350] According to some embodiments of the present specification, the one or more vibration generating devices may include a first vibration generating device arranged at a position closer to the ears of a occupant of the device, the first vibration generating device including a vibration device having a second vibration part arranged more centrally on the vibration member than the second vibration part, and a second vibration generating device arranged farther from the ears of the occupant, the second vibration generating device including a vibration device having a second vibration part arranged more centrally on the vibration member than the first vibration part.

[0351] According to some embodiments of the present specification, a vibration generating device placed in a position close to the ears of a passenger of the device may be a vibration device in which the area of ​​the first vibration part is larger than the area of ​​the second vibration part, and a vibration generating device placed away from the ears of the passenger may be a vibration device in which the area of ​​the second vibration part is smaller than the area of ​​the first vibration part.

[0352] According to some embodiments of the present specification, the one or more vibration generating devices may include a first vibration generating device arranged at a position close to an ear of a occupant of the device, the first vibration generating device including a vibration device having an area of ​​a second vibration part larger than an area of ​​the second vibration part, and a second vibration generating device arranged away from the ear of the occupant, the second vibration generating device including a vibration device having an area of ​​the second vibration part smaller than the area of ​​the first vibration part.

[0353] According to some embodiments of the present specification, the one or more vibration generating devices may include a first vibration generating device and a second vibration generating device, each of which may include a vibration device, and in the first vibration generating device positioned closer to the ears of an occupant of the device, the corresponding at least one or more first vibration sections may be positioned more centrally on the vibration member than the corresponding multiple second vibration sections, and in the second vibration generating device positioned farther from the ears of the occupant, the corresponding multiple second vibration sections may be positioned more centrally on the vibration member than the corresponding at least one or more first vibration sections.

[0354] According to some embodiments of the present specification, the one or more vibration generating devices may include a first vibration generating device and a second vibration generating device, each of which may include a vibration device, and for a first vibration generating device positioned close to an ear of an occupant of the device, an area of ​​one of the at least one or more corresponding first vibration sections may be larger than an area of ​​one of the corresponding plurality of second vibration sections, and for a second vibration generating device positioned away from the ear of the occupant, an area of ​​one of the at least one or more corresponding first vibration sections may be smaller than an area of ​​one of the corresponding plurality of second vibration sections.

[0355] Although the embodiments of the present specification have been described in more detail with reference to the attached drawings, the present specification is not necessarily limited to such embodiments, and various modifications can be made within the scope of the technical idea of ​​the present specification. Therefore, the embodiments disclosed in the present specification are for illustrating, not limiting, the technical idea of ​​the present specification, and such embodiments do not limit the scope of the technical idea of ​​the present specification. Therefore, the above-described embodiments are illustrative in all respects and should be understood as not being limiting. The scope of protection of the present specification should be interpreted by the scope of the claims, and all technical ideas within the scope equivalent thereto should be interpreted as being included in the scope of the present specification. [Explanation of symbols]

[0356] 100: Vibration member 130: Vibration device 131, 132: Vibration part 701, 702, 705, 706: Partition members

Claims

1. A vibrating member, and a vibration device disposed on a rear surface of the vibration member and configured to vibrate the vibration member; the vibration device includes at least one first vibration section and a plurality of second vibration sections different from the at least one first vibration section, The at least one first vibration portion is disposed around the plurality of second vibration portions, the at least one first vibration portion is made of polycrystalline ceramic, the plurality of second vibration parts are made of single crystal ceramic, Each of the at least one or more first vibration sections is configured to vibrate in a thickness direction of the vibration device, The device, wherein each of the plurality of second vibrating portions is configured to vibrate in a lateral direction of the vibration device.

2. The at least one first vibration portion has a rectangular shape, The apparatus of claim 1 , wherein a length of the rectangular shape is greater than a width of the rectangular shape.

3. The device of claim 1 , wherein the at least one first vibrating portion is configured in a square or circle shape.

4. The apparatus of claim 1 , wherein the plurality of second vibrational portions includes a first vibrational portion and a second vibrational portion.

5. The device of claim 4, wherein a horizontal length of each of the first vibration section and the second vibration section among the plurality of second vibration sections is longer than a vertical length of a corresponding one of the first vibration section and the second vibration section among the plurality of second vibration sections.

6. a first partition member surrounding a corresponding first vibration portion of the at least one or more first vibration portions; a second partition member surrounding the first vibrating portion of the plurality of second vibrating portions; and The apparatus of claim 4 , further comprising a third partition member surrounding the second vibrating portion of the plurality of second vibrating portions.

7. the at least one or more first vibration parts include a first vibration part, a second vibration part, a third vibration part and a fourth vibration part; The apparatus of claim 1 , wherein the plurality of second vibration sections includes a first vibration section and a second vibration section.

8. The device of claim 7 , wherein the first vibration portion, the second vibration portion, the third vibration portion and the fourth vibration portion of the at least one first vibration portion are located around the first vibration portion and the second vibration portion of the plurality of second vibration portions.

9. a first partition member surrounding the first vibration portion and the second vibration portion of the at least one first vibration portion; a second partition member surrounding the third vibration portion and the fourth vibration portion of the at least one first vibration portion; and The apparatus of claim 7 , further comprising a third partition member surrounding the first vibrating portion and the second vibrating portion of the plurality of second vibrating portions.

10. The device of claim 7, wherein each of the first vibration section, the second vibration section, the third vibration section and the fourth vibration section of the at least one or more first vibration sections, and each of the first vibration section and the second vibration section of the plurality of second vibration sections, are configured to receive independent acoustic signals.

11. Each of the at least one first vibration section and the plurality of second vibration sections is vibration layer, A first electrode portion on a first surface of the vibration layer; and The apparatus of claim 1 including a second electrode portion on a different surface of the vibration layer than the first surface.

12. a first cover member on the first electrode portion; and The device of claim 11 , further comprising a second cover member on the second electrode portion.

13. The device of claim 12 , wherein the first cover member and the second cover member are made of different materials.

14. The apparatus of claim 13 , wherein one of the first cover member and the second cover member includes an adhesive member.

15. a first adhesive layer between the first cover member and the first electrode portion; and The device of claim 12 , further comprising a second adhesive layer between the second cover member and the second electrode portion.

16. 10. The apparatus of claim 1, wherein the vibrating member comprises a metallic material or one or more of the following single or composite non-metallic materials: wood, rubber, plastic, glass, carbon, fiber, cloth, paper, mirror, and leather.

17. 10. The apparatus of claim 1, wherein the vibrating member comprises one or more of a display panel having a plurality of pixels for displaying an image, a light emitting diode lighting panel, an organic light emitting lighting panel, and an inorganic light emitting lighting panel.

18. 2. The device of claim 1, wherein the vibrating member comprises one or more of a display panel having a plurality of pixels for displaying an image, a screen panel onto which an image is projected from a display device, a lighting panel, a signage panel, an interior material of a vehicle, a glass window of a vehicle, an exterior material of a vehicle, a ceiling material of a building, an interior material of a building, a window of a building, an interior material of an aircraft, a window of an aircraft, metal, wood, rubber, plastic, glass, carbon, fiber, cloth, paper, leather, and a mirror.

19. the vibration member includes a first region and a second region; The apparatus of any one of claims 1 to 18, wherein the vibration device is disposed in at least one of the first region and the second region.

20. A vibrating member, and a vibration device disposed on a rear surface of the vibration member and configured to vibrate the vibration member; The vibration device includes a plate coupled to a rear surface of the vibration member; The vibration device includes at least one first vibration section and a plurality of second vibration sections different from the at least one first vibration section, The at least one first vibration portion is disposed around the plurality of second vibration portions, the at least one first vibration portion is made of polycrystalline ceramic, the plurality of second vibration parts are made of single crystal ceramic, Each of the at least one or more first vibration sections is configured to vibrate in a thickness direction of the vibration device, The device, wherein each of the plurality of second vibrating portions is configured to vibrate in a lateral direction of the vibration device.

21. 21. The apparatus of claim 20, wherein the plate includes a plurality of openings positioned to focus sound waves onto the vibrating member.

22. 22. The apparatus of claim 21, wherein the plate is configured in a mesh shape.

23. The exterior material that covers the main structure, an interior material that covers the main structure and one or more of the exterior materials; and The method includes the steps of: (a) providing a vibration generating device in one or more of the exterior material, the interior material, a region between the main structure and the exterior material, and a region between the main structure and the interior material; The one or more vibration generating devices include a device according to any one of claims 1 to 18 and 20 to 22; the vibration member is the exterior material or the interior material, An apparatus, wherein one or more of the exterior material and the interior material output sound by vibration of the one or more vibration generating devices.

24. 24. The apparatus of claim 23, wherein the interior material comprises one or more of the following materials: wood, rubber, plastic, glass, carbon, fiber, cloth, paper, metal, and leather.

25. The 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 handle interior material, a floor interior material, and a rear package interior material of a vehicle; 24. The apparatus of claim 23, wherein the one or more vibration generating devices vibrate at least one or more of the dashboard, the pillar interior material, the roof interior material, the door interior material, the seat interior material, the steering wheel interior material, the floor interior material, and the rear package interior material.

26. Windows, and 24. The apparatus of claim 23, further comprising a transparent vibration generator disposed in the window.

27. the window comprises at least one of a front window, a side window, a rear window, and a roof window of the vehicle; 27. The apparatus of claim 26, wherein the transparent vibration generating device vibrates at least one or more of the front window, the side window, the rear window, and the roof window.

28. the one or more vibration generating devices include a first vibration generating device and a second vibration generating device; Each of the first vibration generating device and the second vibration generating device includes the vibration device, the first vibration generating device is disposed at a position close to an ear of a person riding on the device, and the corresponding at least one or more first vibration parts are disposed closer to the center of the vibration member than the corresponding second vibration parts; The device described in claim 23, wherein the second vibration generating device is positioned farther from the ears of the occupant and the corresponding multiple second vibration parts are positioned more centrally on the vibration member than the corresponding at least one or more first vibration parts.

29. the one or more vibration generating devices include a first vibration generating device and a second vibration generating device; Each of the first vibration generating device and the second vibration generating device includes the vibration device, the first vibration generating device is disposed at a position close to an ear of a user of the device, and an area of ​​one of the at least one or more corresponding first vibration parts is larger than an area of ​​one of the corresponding second vibration parts; 24. The device of claim 23, wherein in the second vibration generating device positioned away from the ears of the occupant, an area of ​​one of the at least one or more corresponding first vibration sections is smaller than an area of ​​one of the corresponding second vibration sections.

Images