Device

Abstract

To provide an apparatus improved in sound quality and a vehicle including such an apparatus, which generate a sound based on vibration of a vibration member or generate haptic feedback or haptic vibration responding to a user touch.SOLUTION: An apparatus for outputting a sound S includes: a vibration member 100; a supporting portion 300 at a rear surface of the vibration member 100, the supporting portion including a curved portion; and a vibration apparatus 500 at the curved portion to face the rear surface of the vibration member 100. The supporting portion 300 supports the vibration apparatus 500 so that the vibration apparatus has a curved shape or curved structure, and applies a pre-stress to the vibration apparatus 500.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] This specification relates to devices, and more particularly to devices capable of outputting sound. [Background technology]

[0002] The device, for example, a display device, is installed in electronic products or home appliances such as televisions, monitors, notebook computers, smartphones, tablet computers, electronic pads, wearable devices, watch phones, portable information devices, navigation systems, or vehicle control display devices, and is used as a screen for displaying images.

[0003] The display device may include a display panel for displaying an image and an audio device for outputting audio related to the image. However, since the audio output from the audio device travels behind or below the display panel, the sound quality may be deteriorated due to interference between the audio reflected by the wall or the ground, which may make it difficult to transmit the audio accurately, thereby reducing the immersive feeling of the viewer.

[0004] The description provided in the Background Art should not be considered prior art merely because it is mentioned in or related to the Background Art. The discussion of the prior art may include information that describes one or more examples of the present technology, and the description of the Background Art is not intended to limit the inventions herein. Summary of the Invention [Problem to be solved by the invention]

[0005] The inventors of the present specification have recognized the problems and shortcomings of the background art as well as the problems with the display device described above, and have conducted numerous studies and experiments to improve sound quality by making the sound travel direction toward the front of the display panel when an image is viewed from the front of the display panel. Through numerous studies and experiments, the inventors have invented a display device having a new structure that can generate sound that can travel toward the front of the display panel and improve sound quality.

[0006] An object of the present invention is to provide a device and a vibration device that can improve sound quality and enhance a sense of immersion for a viewer, and a vehicle including the same.

[0007] The problem to be solved by one embodiment of the present specification is to provide a device (or display device) having improved acoustic characteristics and / or sound pressure characteristics, a vibration device, and a vehicle including the same.

[0008] The problem to be solved by one embodiment of the present specification is to provide a device (or display device) having improved acoustic characteristics and / or sound pressure characteristics of low-frequency sound, a vibration device, and a vehicle including the same.

[0009] The problem to be solved by one embodiment of this specification is to provide an apparatus (or display device) that can generate sound in the front direction of the vibration member by using a passive vibration member as an acoustic vibration plate, and a vibration device and a vehicle including the same.

[0010] Additional features, advantages, and embodiments of the present specification will be set forth in part in the description that follows, and in part will be apparent from the specification and may be learned by practice of the inventive concepts provided therein. Other features, advantages, and embodiments of the inventive concepts will be realized and attained by the description, claims, and appended drawings as provided herein or which may be derived therefrom. [Means for solving the problem]

[0011] An apparatus according to one or more embodiments of the present disclosure includes a vibrating member, a support portion on a rear surface of the vibrating member and having a curved portion, and a vibrating device on the curved portion and facing the rear surface of the vibrating member.

[0012] An apparatus according to one or more embodiments of the present disclosure includes a base member, a support having a pair of support bars coupled to the base member, and a vibration device on the pair of support bars, the vibration device having a curved shape.

[0013] An apparatus according to one or more embodiments of the present specification includes a passive vibration member and a vibration generating device coupled to the passive vibration member and configured to vibrate the passive vibration member, the vibration generating device including a vibration member, a support portion on a rear surface of the vibration member and having a curved portion, and a vibration device on the curved portion and facing the rear surface of the vibration member.

[0014] An apparatus according to one or more embodiments of the present specification includes a passive vibration member and a vibration generating device coupled to the passive vibration member and configured to vibrate the passive vibration member, the vibration generating device including a base member, a support having a pair of support bars coupled to the base member, and a vibration device located on the pair of support bars and having a curved shape.

[0015] Specific matters according to various examples of the present specification other than the means for solving the problems mentioned above are included in the following description and drawings. Effect of the Invention

[0016] An apparatus according to one or more embodiments of the present disclosure may provide improved sound quality and a more immersive experience for the viewer.

[0017] A device according to one or more embodiments of the present disclosure can use a display panel as a diaphragm to generate or output sound in the front direction of the display panel.

[0018] A device according to one or more embodiments of the present disclosure may have improved acoustic and / or sound pressure characteristics.

[0019] A device according to one or more embodiments of the present disclosure may have improved acoustic characteristics and / or sound pressure characteristics for low frequency range sounds.

[0020] An apparatus according to one or more embodiments of the present disclosure may output stereo, spatial or multi-channel audio with enhanced sound pressure characteristics.

[0021] Other systems, methods, features, and advantages will be apparent or obvious to one with skill in the art upon examination of the following drawings and detailed description. All such additional systems, methods, features, and advantages are intended to be included within this description, be within the scope of this disclosure, and be protected by the following claims. Nothing in this section should be construed as a limitation on these claims. Additional aspects and advantages are discussed below in conjunction with aspects of the disclosure.

[0022] Both the foregoing description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the disclosure as set forth in the appended claims.

[0023] The accompanying drawings, which are included to provide a further understanding of the specification and are incorporated in and constitute a part of the specification, illustrate aspects and embodiments of the specification and, together with the description, may serve to explain the principles of the specification. [Brief description of the drawings]

[0024] [Figure 1] FIG. 1 illustrates an apparatus according to one embodiment of the present disclosure. [Diagram 2] FIG. 2 is a rear view of an apparatus according to one embodiment of the present disclosure. [Diagram 3] 2 is a cross-sectional view taken along line II' shown in FIG. 1. [Figure 4] FIG. 4 is a perspective view showing the cover and the support member shown in FIGS. 2 and 3. [Diagram 5] FIG. 1 is a perspective view of a vibration device according to an embodiment of the present specification. [Figure 6] 3 is another cross-sectional view of the line II' shown in FIG. 2. [Figure 7] 7 is a rear perspective view showing the cover member shown in FIG. 6. [Figure 8] FIG. 13 is a rear perspective view showing a support portion and a cover member according to another embodiment of the present specification. [Figure 9] FIG. 13 is a rear perspective view showing a support portion and a cover member according to another embodiment of the present specification. [Figure 10] 13 is a diagram showing a vibration generator according to another embodiment of the present specification. [Figure 11] 11 is a cross-sectional view taken along line II-II' shown in FIG. [Figure 12] 12 is a perspective view showing the vibration part shown in FIG. 11. [Figure 13] 13 is a perspective view showing another embodiment of the vibrating section shown in FIG. 12. FIG. [Figure 14] 13 is a perspective view showing another embodiment of the vibrating section shown in FIG. 12. FIG. [Figure 15] 13 is a perspective view showing another embodiment of the vibrating section shown in FIG. 12. FIG. [Figure 16] FIG. 13 illustrates a vibration generator according to another embodiment of the present specification. [Figure 17] FIG. 17 is a cross-sectional view taken along line III-III' shown in FIG. [Figure 18] FIG. 13 illustrates a vibration generator according to another embodiment of the present specification. [Figure 19] FIG. 13 illustrates a vibration generator according to another embodiment of the present specification. [Figure 20] 20 is a cross-sectional view taken along line IV-IV' shown in FIG. 19. [Figure 21A] 21 is a perspective view showing a laminated structure between vibration layers of the plurality of vibration generating parts shown in FIGS. 19 and 20. FIG. [Figure 21B] 21 is a perspective view showing a laminated structure between vibration layers of the plurality of vibration generating parts shown in FIGS. 19 and 20. FIG. [Figure 21C] 21 is a perspective view showing a laminated structure between vibration layers of the plurality of vibration generating parts shown in FIGS. 19 and 20. FIG. [Figure 21D] 21 is a perspective view showing a laminated structure between vibration layers of the plurality of vibration generating parts shown in FIGS. 19 and 20. FIG. [Figure 22] FIG. 13 is a perspective view of an apparatus according to another embodiment of the present disclosure. [Diagram 23] 23 is a cross-sectional view taken along line VV' shown in FIG. 22. [Figure 24] 24 is a perspective view showing the rear surface of the cover member shown in FIG. 22 and FIG. 23. [Diagram 25] 23 is another cross-sectional view of the line VV' shown in FIG. 22. [Figure 26] 26 is a perspective view showing the cover member and the support portion shown in FIG. 25. FIG. [Figure 27] FIG. 13 is a rear perspective view of an apparatus according to a fifth embodiment of the present disclosure. [Figure 28] 28 is a cross-sectional view taken along line VI-VI' shown in FIG. 27. [Figure 29] FIG. 29 is a perspective view showing the base plate and the support portion shown in FIGS. 27 and 28. [Diagram 30] 28 is another cross-sectional view taken along the line VI-VI' shown in FIG. 27. [Diagram 31] FIG. 31 is a perspective view showing the base plate and the support part shown in FIG. 30. [Diagram 32] FIG. 13 shows an apparatus according to a seventh embodiment of the present specification. [Diagram 33] FIG. 13 shows an apparatus according to an eighth embodiment of the present specification. [Diagram 34] FIG. 13 is a plan view showing an apparatus according to a ninth embodiment of the present specification. [Diagram 35] FIG. 13 is a cross-sectional view showing an apparatus according to a ninth embodiment of the present specification. [Diagram 36] FIG. 36 is a diagram showing sound generating devices arranged around the driver's seat and front passenger seats in FIGS. 34 and 35. [Figure 37] FIG. 36 shows sound generating devices placed on the door and glass window of FIGS. 34 and 35. [Figure 38] FIG. 36 shows a sound-generating device disposed on the loop panel of FIGS. 34 and 35. [Figure 39] FIG. 36 shows the roof panel of FIGS. 34 and 35 and the sound generating devices arranged on the glass windows and seats. [Diagram 40] FIG. 11 is a diagram showing a comparison of the peak response speed of a device according to an embodiment of the present specification and a peak response speed of a device according to an experimental example. [Diagram 41] 1 is a diagram showing a comparison of the acoustic output characteristics of a device according to an embodiment of the present specification and a device according to an experimental example. [Diagram 42]FIG. 2 is a diagram showing a comparison between the acoustic output characteristics of the device according to the first embodiment of the present specification and the acoustic output characteristics of a device according to an experimental example.

[0025] Throughout the drawings and detailed description, unless otherwise stated, like reference numerals should be understood to refer to like components, features and structures. Sizes, lengths, thicknesses and descriptions of layers, regions and elements may be exaggerated for clarity, explanation and convenience. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Reference will now be made in detail to the embodiments of the present specification, examples of which can be illustrated in the accompanying drawings. In the following description, if a detailed description of a well-known function or configuration unnecessarily obscures the gist of the present specification, the detailed description may be omitted for the sake of brevity. The sequence of steps and / or operations described is exemplary, but the order of steps and / or operations is not limited to that described herein and may be modified, except that steps and / or operations necessarily occur in a particular order.

[0027] Unless otherwise specified, the same reference numerals may generally refer to similar components even if they are illustrated in different drawings. In one or more embodiments, the same components (or components having the same name) in different drawings may have the same or substantially the same functions and characteristics, unless otherwise specified. The names of the respective components used in the following description are selected for convenience and may differ from the actual products.

[0028] The advantages and features of the present specification, and the method of achieving them, will become clear by referring to the following detailed description of the embodiment together with the accompanying drawings. However, the present specification is not limited to the embodiment disclosed below, and may be realized in various different forms, and the embodiment is merely provided to complete the disclosure of the specification and to fully inform those skilled in the art of the invention to which the specification pertains.

[0029] For purposes of explaining the embodiments of the present specification, the shapes, sizes, areas, ratios, angles, numbers, etc. shown in the figures are merely illustrative and the present specification is not limited to the matters shown in the figures.

[0030] When the terms "comprise", "have", "consist", "comprise", "formed", etc. are used in this specification, other parts can be added unless "only" or "only" is used. The terms used in this specification are used only to describe a particular embodiment and are not intended to limit the scope of the specification. The terms used in this specification are used only to describe an exemplary embodiment and are not intended to limit the scope of the specification. Terms expressing elements in the singular include the plural unless otherwise expressly stated. An "embodiment" may be an illustrative example. Any implementation described in the "embodiment" or "example" described in this specification is not necessarily preferred or should be construed as advantageous over other implementations.

[0031] In one or more embodiments, components, features, or corresponding information (e.g., levels, ranges, dimensions, sizes, etc.) may be interpreted as including an error or tolerance range even if an explicit description of these error or tolerance ranges is not provided. The error or tolerance range may be caused by various factors (e.g., process factors, internal or external impacts, noise, etc.).

[0032] When describing a location relationship, if the location relationship between two parts is described using terms such as "above or above," "on top," "below or below," "below," "near," "adjacent," "beside," or "next," one or more other parts may be located between the two parts unless "immediately," "immediately," "closely," or "directly" is used. For example, when structures are described as being located "above or above," "on top," "below or below," "below," "near," "adjacent," "beside," or "next," the description must be interpreted to include the cases where the structures touch each other and a third structure is located between them. For example, when structures are described as being located "above or above," "on top," "below or below," "below," "near," "adjacent," "beside," or "next," the description must be interpreted to include the cases where the structures touch each other and a third structure is located between them. Additionally, "front", "back", "dorsal", "left", "right", "top", "bottom", "downward", "upward", "top", "bottom", "column", "row", "vertical", "horizontal", etc. refer to an arbitrary frame of reference.

[0033] When describing a temporal relationship, for example when a temporal sequence is described using "after," "following," "next to," "before," etc., it may also include consecutive or non-consecutive cases, since "immediately," "instantly," or "directly" are not used.

[0034] Although the terms "first", "second", etc. 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. Thus, the first component referred to below may be the second component within the technical spirit of the present invention. Furthermore, the first element, the second element, etc. may be arbitrarily named according to the convenience of a person skilled in the art without departing from the scope of this specification. Terms such as "first", "second", etc. may be used to distinguish components from each other, but the function or structure of the component is not limited by the ordinal number before the component or the name of the component.

[0035] In describing components of this specification, terms such as first, second, A, B, (a), (b), etc. may be used. Such terms are used to distinguish the components from other components, and are not used to define the nature, basis, order, or number of the components.

[0036] When a component or layer is described as being "connected," "bonded," or "coupled" to another component, it should be understood that the component may be directly connected or coupled to the other component, but that other components or layers may also be "disposed" or "interposed" between each component that may be indirectly connected or coupled unless specifically and explicitly stated.

[0037] When a component or layer is described as being in "contact with" or "overlapping" another component or layer, it should be understood that the component may be in direct contact with or overlaid on the other component or layer, but that one or more other components or layers may be "disposed" or "interposed" between each component or layer that may be in indirect contact or overlaid unless otherwise expressly described. For example, for purposes of this specification, terms such as "overlap or overlap" and "overlap" should be understood as "overlap, electrically and / or physically connected" by, for example, surface-to-surface connection, and "overlap, electrically and / or physically connected" by, for example, surface-to-surface connection.

[0038] The term "at least one" should be understood to include all possible combinations of one or more of the associated items. For example, the meaning of "at least one of the first, second, and third items" may include only any combination of the first, second, and third items, and not just combinations of items presented from two or more of the first, second, or third items.

[0039] The phrase "first component", "second component" and / or "third component" should be understood as one of the first, second and third components or any or all combinations of the first, second and third components. For example, A, B and / or C can be considered as A only, B only, C only, any or some combination of A, B and C, or all of A, B and C. Furthermore, the phrase "component A / component B" should be understood as component A and / or component B.

[0040] In one or more embodiments, the terms "between" and "in" may be used interchangeably for convenience only, unless otherwise noted. For example, the phrase "between multiple components" may also be understood as "among multiple components." In other embodiments, the phrase "among multiple components" may also be understood as "between multiple components." In one or more embodiments, the number of components may be two. In one or more embodiments, the number of components may be more than two.

[0041] In one or more embodiments, the term "different from" may be understood to mean that any element is different from the other element.

[0042] In one or more embodiments, the terms "one or more of" and "one or more of" may be used interchangeably for convenience only, unless otherwise specified. For example, the term "one or more of" can also be understood as "one or more of." For example, the term "one or more of" can also be understood as "one or more of."

[0043] The features of the various embodiments herein may be combined or combined with one another in part or in whole, and may be technically interlocked and driven in various ways, and each embodiment may be implemented independently of the other, or may be implemented together in a related relationship. In one or more embodiments, the components of each device according to the various embodiments herein may be operably coupled or configured.

[0044] The terms used in this specification (including technical and scientific terms) may have the same meaning as that understood by a person having ordinary knowledge in the technical field to which this specification belongs. Furthermore, terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the relevant technology, and should not be interpreted as idealized or overly formal unless otherwise specified.

[0045] Hereinafter, a vibration device according to various embodiments of the present specification, a vibration device, and a vehicle including the same will be described in detail with reference to the accompanying drawings. The reference numbers for components in each drawing may refer to similar components, although the same components may be illustrated in other drawings, unless otherwise specified. Furthermore, for convenience of explanation, the scale, dimensions, size, and thickness of the components illustrated in the drawings may have a scale, dimensions, size, and thickness different from the actual scale, dimensions, size, and thickness, and therefore are not limited to the scale, dimensions, size, and thickness illustrated in the drawings.

[0046] FIG. 1 is a diagram showing an apparatus according to an embodiment of the present specification, and FIG. 2 is a rear view showing an apparatus according to an embodiment of the present specification.

[0047] Referring to FIG. 1 and FIG. 2, a device according to an embodiment of the present specification may be a display device, but the embodiment of the present specification is not limited thereto.

[0048] The display device may include a display panel including a plurality of pixels that display (or realize) a black-and-white or color image, and a driver for driving the display panel. The pixel may be a sub-pixel that realizes any one of a plurality of colors that display a color image. The device according to an embodiment of the present specification may also include a set electronic apparatus or set device such as a notebook computer, which is a complete product or final product including a display panel such as a liquid crystal display panel or an organic light-emitting display panel, an equipment apparatus including a vehicle or automotive apparatus or other forms of a vehicle, a mobile electronic apparatus such as a smartphone or an electronic pad, etc.

[0049] An apparatus according to one embodiment of the present disclosure may include a vibration member 100 , a support 300 , and a vibration device 500 .

[0050] The vibrating member 100 may be used as a diaphragm that generates or outputs one or more of sound and vibration, and thus the vibrating member 100 may be a diaphragm, a passive diaphragm, or a passive vibrating member, but the embodiments herein are not limited thereto.

[0051] A vibrating member 100 according to one embodiment of the present disclosure may include a display member 110 and a cover member 130 .

[0052] The display member 110 may include a display panel 111 for displaying an image. For example, the image may include an electronic image, a digital image, a still image, a video, or a moving image. For example, the display panel 111 may include a liquid crystal display panel having a plurality of pixels forming a black and white or color image, and the type of the display panel is not limited thereto. For example, the display panel 111 may include a display panel such as an organic light emitting display panel, an electrophoretic display panel, a micro light emitting diode display panel, an electrowetting display panel, or a quantum dot light emitting display panel. For example, in a liquid crystal display panel, a pixel may include a liquid crystal layer between a pixel electrode and a common electrode. For example, in an organic light emitting display panel, a pixel may include an organic light emitting element such as an organic light emitting layer between a pixel electrode and a common electrode.

[0053] The cover member 130 may be configured to cover the rear surface of the display member 110. The cover member 130 may include a rear portion 131 that covers the rear surface of the display member 110. The cover member 130 may include a plastic material and / or a metal material, or a combination thereof. For example, the cover member 130 may be expressed as a rear cover, a back cover, a system rear cover, a housing, a system housing, a set cover, a rear set cover, an outermost set cover, a product cover, or an outermost product cover, but the embodiments of the present specification are not limited thereto.

[0054] The rear portion 131 of the cover member 130 may include a first region 100A1 and a second region 100A2. For example, the rear portion 131 of the cover member 130 may be divided into the first region 100A1 and the second region 100A2 based on a center line (or a first center line) (CL1) of a first length (or a horizontal length) extending in the Y direction. The first region 100A1 and the second region 100A2 may have a first length in the horizontal direction (X direction). For example, each of the first region 100A1 and the second region 100A2 may have the same size or area on the rear portion 131. For example, the center line (CL1) of the first length may be a first center line or a vertical center line, and will be referred to as the "first center line (CL1)" in the following description. For example, the first region 100A1 may be a first rear region, a left region, or a rear left region, and the second region 100A2 may be a second rear region, a right region, or a rear right region. For example, the first direction (X) may be the long side longitudinal direction of the cover member 130, the lateral direction, the horizontal direction, or an X-axis direction that is any one of the XYZ-axis directions.

[0055] Each of the first region 100A1 and the second region 100A2 of the rear portion 131 may include a first sub-region 100B1 and a second sub-region 100B2 based on a center line (CL2) of a second length (or horizontal length) parallel to a second direction (Y) intersecting with the first direction (X). For example, in each of the first region 100A1 and the second region 100A2, each of the first sub-region 100B1 and the second sub-region 100B2 may have the same size or area on the rear portion 131. For example, the center line (CL2) of the second length may be a second center line or a horizontal center line, and will be referred to as the "second center line (CL2)" in the following description. For example, the second direction (Y) may be the Y-axis direction, which is the short side length direction, the longitudinal direction, the vertical direction, or any of the XYZ axis directions of the cover member 130.

[0056] The cover member 130 may further include one or more reinforcing portions 133 disposed on the back portion 131 .

[0057] One or more reinforcing portions 133 may be configured to reinforce the rigidity of the cover member 130. Thus, the reinforcing portion 133 may be a reinforcing member, a reinforcing pattern, a reinforcing pattern portion, a rigid portion, a rigid reinforcing member, a rigid pattern, or a rigid pattern portion, and examples herein are not limited thereto.

[0058] The reinforcing portion 133 may be disposed along an edge portion of the rear surface and a middle portion of the rear surface of the cover member 130. The reinforcing portion 133 may be configured by protruding from an edge portion of the rear surface portion 131 of the cover member 130 toward the rear surface of the cover member 130 so as to have a preset height. The reinforcing portion 133 can prevent or reduce the warping phenomenon of the device or the vibrating member 100 by reinforcing the rigidity of the cover member 130 or the rigidity of the rear surface portion 131 of the cover member 130.

[0059] One or more supports 300 may be arranged on the back surface of the vibration member 100 and configured to support the vibration device 500. For example, the support 300 may be arranged on the back surface of the display member 110 of the vibration member 100. For example, the support 300 may be arranged on the back surface of the cover member 130 of the vibration member 100 and configured to support the vibration device 500. The support 300 may support the vibration device 500 so that the shape of the vibration device 500 is non-planar (or non-flat). For example, the support 300 may support the vibration device 500 so that the shape of the vibration device 500 is curved or curved structure. For example, the support 300 may be configured to apply pre-stress to the vibration device 500. For example, the support 300 may be configured to apply only tensile stress (or tensile stress) to the vibration device 500.

[0060] The support 300 according to an embodiment of the present specification may include a first support 310 and a second support 320. The first support 310 and the second support 320 may have a shape similar to each other. The first support 310 and the second support 320 may include a shape or structure that can apply pre-stress to the vibration device 500. For example, the first support 310 and the second support 320 may include a curved surface or a curved portion configured to apply only tensile stress to the vibration device 500. Such a support 300 or the first and second support 310, 320 will be described later.

[0061] The vibration device 500 may be disposed on the support 300 on the rear surface of the vibration member 100 and configured to vibrate the vibration member 100. The vibration device 500 according to an embodiment of the present specification may include a film vibration device, a film-type vibration device, or a flexible vibration device. Thus, the vibration device 500 may be expressed as a sound generating device, a sound generating element, a sound generating member, a sound generator, a vibration source, an active vibration member, an active vibration element, an active vibration device, a piezoelectric vibration device, a piezoelectric vibration member, a piezoelectric vibration element, a piezoelectric vibrator, a piezoelectric vibration generator, a flexible vibration generator, a flexible actuator, a flexible speaker, a flexible piezoelectric speaker, a film actuator, a film-type piezoelectric composite actuator, a film speaker, a film-type piezoelectric speaker, or a film-type piezoelectric composite speaker, but the embodiment of the present specification is not limited thereto.

[0062] The vibration device 500 may be coupled or attached to the support 300. The vibration device 500 may have a non-planar (or non-flat) configuration by the support 300. For example, the vibration device 500 may be positioned in a curved shape or configuration by the support 300. For example, the vibration device 500 may be positioned in a pre-stressed state by the support 300.

[0063] A vibration device 500 according to an embodiment of the present disclosure may include a first vibration device 500-1 and a second vibration device 500-2.

[0064] Each of the first and second vibration devices 500-1, 500-2 may be a film vibration device or a film-type vibration device. Each of the first and second vibration devices 500-1, 500-2 may be disposed on an edge portion of the rear surface of the cover member 130. For example, the first and second vibration devices 500-1, 500-2 may be disposed parallel to each other with a first center line (CL1) therebetween. For example, the first and second vibration devices 500-1, 500-2 may be disposed to have a symmetrical structure (or a bilaterally symmetrical structure) or an asymmetrical structure (or a bilaterally asymmetrical structure) with respect to the first center line (CL1) of the cover member 130 as the center.

[0065] The first vibrating device 500-1 may be disposed on an edge portion of a first rear surface of the cover member 130. For example, the first vibrating device 500-1 may be disposed on a first support portion 310 in the first region 100A1 of the cover member 130. For example, the first vibrating device 500-1 may be disposed near an edge portion of the first rear surface of the cover member 130.

[0066] According to an embodiment of the present specification, the center (or middle) (CP) of the first vibration device 500-1 can be aligned or located on the second center line (CL2) of the cover member 130. For example, the center (or middle) (CP) of the first vibration device 500-1 can be disposed on the second center line (CL2) in the first region 100A1 of the cover member 130 between the first center line (CL1) of the cover member 130 and the first side wall (or first short side) of the cover member 130. For example, the first vibration device 500-1 can be disposed closer to the first side wall of the cover member 130 than the first center line (CL1) of the cover member 130 in the first region 100A1 of the cover member 130, or the distance to the first center line (CL1) can be greater than the distance to the first side wall.

[0067] According to another embodiment of the present specification, the center (or center) (CP) of the first vibrating device 500-1 may be spaced apart from the second center line (CL2) of the cover member 130. For example, the center (or center) (CP) of the first vibrating device 500-1 may be located within the first sub-region 100B1 of the first region 100A1. For example, the center (or center) (CP) of the first vibrating device 500-1 may be located in the first sub-region 100B1 of the first region 100A1, which is spaced apart from the second center line CL2 of the cover member 130 by a preset distance (ΔL). This may improve the acoustic characteristics and / or sound pressure characteristics of the low-frequency range generated by the vibration of the first vibrating device 500-1.

[0068] In other embodiments of the present specification, the portion or area of ​​the first vibrating device 500-1 arranged in the first sub-region 100B1 may be larger than the portion or area of ​​the first vibrating device 500-1 arranged in the second sub-region 100B2. For example, when the device according to the embodiments of the present specification is applied to a display device, the bottom (or bottom end) of the second sub-region 100B2 of the cover member 130 may act as a pedestal, and may be a free end that can move or vibrate freely from the bottom of the second sub-region 100B2 to the top of the first sub-region 100B1 in the vibration of the vibrating member 100. As a result, when the center (CP) of the first vibrating device 500-1 is located in the first sub-region 100B1 separated from the second center line (CL2) of the cover member 130, the vibration amplitude (or displacement amplitude) of the first vibrating device 500-1 for the same driving signal can be increased compared to when the center (CP) of the first vibrating device 500-1 is located on the second center line CL2 of the vibrating member 100, and therefore the acoustic characteristics and / or sound pressure characteristics in the low-frequency range generated by the vibration of the first vibrating device 500-1 can be improved.

[0069] The second vibrating device 500-2 may be disposed on an edge portion of the second rear surface of the cover member 130. For example, the second vibrating device 500-2 may be disposed on the second support portion 320 in the second region 100A2 of the cover member 130. For example, the second vibrating device 500-2 may be disposed near an edge portion of the second rear surface of the cover member 130.

[0070] According to an embodiment of the present specification, the center (or middle) (CP) of the second vibration device 500-2 can be aligned or located on the second center line (CL2) of the cover member 130. For example, the center (or middle) (CP) of the second vibration device 500-2 can be located on the second center line (CL2) in the second region 100A2 of the cover member 130 between the first center line (CL1) of the cover member 130 and the second side wall (or second short side) of the cover member 130. For example, the second vibration device 500-2 can be located in the second region 100A2 of the cover member 130 closer to the second side wall of the cover member 130 than the first center line (CL1) of the cover member 130.

[0071] The first and second vibration devices 500-1, 500-2 are disposed symmetrically about a first center line (CL1), and may have a similar distance to each sidewall, and all sidewalls may have a similar distance to the first center line (CL1).

[0072] According to another embodiment of the present specification, the center (or center) (CP) of the second vibrating device 500-2 may be spaced apart from the second center line (CL2) of the cover member 130. For example, the center (or center) (CP) of the second vibrating device 500-2 may be located in the first sub-region 100B1 of the second region 100A2. For example, the center (or center) (CP) of the second vibrating device 500-2 may be located in the first sub-region 100B1 of the second region 100A2 spaced apart from the second center line CL2 of the cover member 130 by a preset distance (ΔL). As a result, similar to the first vibrating device 500-1, the acoustic characteristics and / or sound pressure characteristics of the low-frequency band generated by the vibration of the second vibrating device 500-2 may be improved.

[0073] Each of the first vibrating device 500-1 and the second vibrating device 500-2 vibrates in response to a drive signal input from the outside, for example, including an audio signal (or voice signal) or including an audio signal and a haptic feedback signal, and vibrates the vibrating member 100 to generate sound (S) due to the vibration of the vibrating member 100, or to generate haptic feedback (or haptic vibration) in response to the user's touch.

[0074] The device according to an embodiment of the present specification can generate sound (S) and / or haptic feedback (or haptic vibration) by the vibration of the vibrating member 100 due to the driving of the vibrating device 500. For example, the sound (S) generated by the vibration of the vibrating member 100 can be output in the front direction of the vibrating member 100 or in the front direction of the screen. For example, the device according to an embodiment of the present specification can output left and right sounds in the front direction of the vibrating member 100 or in the front direction of the screen by the vibration of the vibrating member 100 due to the driving of each of the first vibrating device 500-1 and the second vibrating device 500-2, and can realize sound, for example, stereo sound, through the left and right sounds. Therefore, the device according to an embodiment of the present specification can transmit sound more accurately by using the vibrating member 100 including the display panel as a diaphragm for sound generation (or sound output) and outputting sound in the front direction of the vibrating member 100 or in the front direction of the screen, thereby improving the sound quality and / or sound and improving the immersive feeling of the viewer.

[0075] Fig. 3 is a cross-sectional view taken along line II' in Fig. 2, and Fig. 4 is a perspective view showing the cover and the support member shown in Fig. 2 and Fig. 3. Figs. 3 and 4 are views for explaining the device according to the first embodiment of the present specification.

[0076] 2 to 4, an apparatus 1 according to an embodiment of the present specification may include a vibrating member 100, a support 300, and a vibrating device 500.

[0077] The vibrating member 100 may be configured to display an image or directly output sound while displaying an image. The vibrating member 100 may include a display member 110 and a cover member 130.

[0078] The display member 110 may include a display panel 111 and a guide member 115 .

[0079] The display panel 111 may be a liquid crystal display panel, but the embodiments of the present specification are not limited thereto. For example, the display panel 111 may be a light-emitting display panel, an electrophoretic display panel, a micro light-emitting diode display panel, an electronic wettability display panel, or a quantum dot light-emitting display panel, etc.

[0080] When the display panel 111 is a liquid crystal display panel, the display member 110 or the vibrating member 100 may further include a backlight 113 disposed between the display panel 111 and the cover member 130 .

[0081] The display panel 111 according to the embodiment of the present specification may include a first substrate 111a, a second substrate 111b, a first polarizing member 111c, and / or a second polarizing member 111d.

[0082] The first substrate 111a may be an upper substrate or a thin film transistor array substrate, and 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.

[0083] The first substrate 111a may further include a pad portion provided on a first edge (or a first non-display portion) and connected to a panel driving circuit, and a gate driving circuit provided on a second edge (or a second non-display portion) and connected to a plurality of gate lines. For example, the panel driving circuit may be connected to the pad portion and disposed on the rear surface of the cover member 130. For example, the panel driving circuit may be disposed in the second sub-region 100B2 of each of the first and second regions 100A1 and 100A2 of the cover member 130 shown in FIG. 2. The panel driving circuit may be covered or protected by a protective portion 150 (or a cover shield). For example, the protective portion 150 may be coupled to or fixed to the second sub-region 100B2 of each of the first and second regions 100A1 and 100A2 of the cover member 130 so as to cover the entire remaining portion of the panel driving circuit except for the user connector, thereby protecting the panel driving circuit.

[0084] The second substrate 111b may be a lower substrate or a color filter array substrate, and may include a pixel aperture pattern including aperture regions corresponding to the pixels formed on the first substrate 111a, and a color filter layer formed in the aperture regions. The second substrate 111b may be bonded to the remaining portion of the first substrate 111a except for a first edge thereof, sandwiching a liquid crystal layer therebetween by a sealant.

[0085] The liquid crystal layer is interposed between the first substrate 111a and the second substrate 111b, and may be made of liquid crystal in which the alignment direction of liquid crystal molecules is changed by an electric field formed by a data voltage and a common voltage applied to a pixel electrode for each pixel.

[0086] The first polarizing member 111c is attached to the lower surface of the second substrate 111b and can polarize light incident from the backlight 113 and proceeding to the liquid crystal layer. The second polarizing member 111d is attached to the upper surface of the first substrate 111a and can polarize light passing through the first substrate 111a and emitted to the outside.

[0087] The display panel 111 according to the embodiment of the present specification can display an image by light passing through the liquid crystal layer, by driving the liquid crystal layer by an electric field formed for each pixel by a data voltage and a common voltage applied to each pixel.

[0088] In one embodiment of the present specification, the display panel 111 has a first substrate 111a made of a thin film transistor array substrate that constitutes an image display surface, so that the entire front surface can be exposed to the outside without being blocked by a separate mechanism (or separate structure).

[0089] In the display panel 111 according to another embodiment of the present specification, the first substrate 111a may be a color filter array substrate, and the second substrate 111b may be a thin film transistor array substrate. For example, the display panel 111 according to another embodiment of the present specification may have a shape in which the display member 110 according to the embodiment of the present specification is inverted upside down, in which case, the pad portion of the display panel 111 according to another embodiment of the present specification may be blocked by a separate mechanism (or a separate structure).

[0090] The display panel 111 according to an embodiment of the present specification may further include a buffer member 117. The buffer member 117 may be formed to surround one or more sides or the entirety of the display panel 111. The buffer member 117 may protect the sides of the display panel 111 from external impact or prevent light leakage from the sides of the display panel 111.

[0091] The backlight (or illumination unit or backlight unit) 113 is disposed on the rear surface of the display panel 111 and can irradiate light onto the rear surface of the display panel 111. The backlight 113 according to an embodiment of the present specification can include a light guide plate 113a, a light source unit, a reflective sheet 113b, and an optical sheet unit (or optical member) 113c, but the embodiment of the present specification is not limited thereto.

[0092] The light guide plate (or light guide member) 113a is disposed on the cover member 130 so as to overlap the display panel 111, and may include a light incident surface provided on at least one side. The light guide plate 113a may include a light-transmitting plastic or glass material, but the embodiments of the present specification are not limited thereto. The light guide plate 113a may cause light incident from a light source unit through the light incident surface to proceed (or exit) toward the display panel 111.

[0093] The light source unit can irradiate light onto a light incident surface provided on the light guide plate 113a. The light source unit can be disposed on the cover member 130 so as to overlap an edge portion of the display panel 111. The light source unit can include a plurality of light emitting diode elements mounted on a light source printed circuit board and irradiating light onto the light incident surface of the light guide plate 113a.

[0094] The reflective sheet 113b may be disposed on the cover member 130 so as to cover the rear surface of the light guide plate 113a. The reflective sheet 113b may reflect the light incident from the light guide plate 113a toward the light guide plate 113a, thereby minimizing the loss of light.

[0095] The optical sheet unit 113c is disposed on the front surface of the light guide plate 113a to improve the brightness characteristics of the light output from the light guide plate 113a. The optical sheet unit 113c according to an embodiment of the present specification may include a lower diffusion sheet, a lower prism sheet, and an upper prism sheet, but the embodiment of the present specification is not limited thereto. For example, the optical sheet unit 113c may be configured as a single layer including a lower diffusion sheet, a lower prism sheet, and an upper prism sheet. The embodiment of the present specification is not limited thereto, and the optical sheet unit 113c may be configured as a combination of one or more layers of a diffusion sheet, a prism sheet, a dual brightness enhancement film, and a lenticular sheet, or may be configured as a single composite sheet having a function of diffusing and collecting light.

[0096] The guide member 115 is disposed on an edge portion of the rear surface of the display panel 111 and can support the edge portion of the rear surface of the display panel 111. The guide member 115 can be supported by or stored in the cover member 130 so as to overlap with the edge portion of the rear surface of the display panel 111. The guide member 115 can be disposed under the rear surface of the display panel 111 so as not to protrude outside each side of the display panel 111.

[0097] The guide member (or support frame) 115 according to an embodiment of the present specification may include a guide frame 115a and a guide side portion 115b. For example, the guide member 115 may have a cross-sectional structure in the shape of a "┓" (Gamma or "L") or a "┏" (rotated "┓" or rotated "L") depending on the coupling structure between the guide frame 115a and the guide side portion 115b, but the embodiment of the present specification is not limited thereto.

[0098] The guide frame 115a may be connected to an edge portion of the rear surface of the display panel 111 and supported by the cover member 130. For example, the guide frame 115a may have a rectangular band (or belt) shape having an opening that overlaps with the remaining middle portion excluding the edge portion of the rear surface of the display panel 111, but the embodiments of the present specification are not limited to this shape. For example, the guide frame 115a may be in direct contact with the top surface of the backlight 113, for example, the top surface of the optical sheet portion 113c, or may be spaced a certain distance from the top surface of the optical sheet portion 113c.

[0099] The guide side 115b may be coupled to the guide frame 115a and encase one side or a side surface of the cover member 130. For example, the guide side 115b may be bent from the guide frame 115a toward the side surface of the cover member 130 to encase the side surface of the cover member 130 or may be enclosed by the side surface of the cover member 130.

[0100] The guide member 115 according to an embodiment of the present specification may be made of a plastic material, a metal material, or a mixture of a plastic material and a metal material, but the embodiment of the present specification is not limited thereto. For example, the guide member 115 may act as a vibration transmission member that transmits sound vibrations generated by the vibration device 500 to the edge portion of the display panel 111. Therefore, the guide member 115 can transmit sound vibrations generated by the vibration device 500 to the display panel 111 without loss while maintaining the rigidity of the display panel 111. For example, the guide member 115 may include a metal material in order to transmit sound vibrations generated by the vibration device 500 to the display panel 111 while maintaining the rigidity of the display panel 111, but the embodiment of the present specification is not limited thereto.

[0101] The guide member 115 according to an embodiment of the present specification may be connected or coupled to an edge portion of the rear surface of the display panel 111 via a coupling member (or a panel coupling member) 114. The coupling member 114 may be disposed between an edge portion of the rear surface of the display panel 111 and the guide member 115 to allow the display panel 111 to be disposed or coupled to the guide member 115. For example, the coupling member 114 may include an acrylic or urethane adhesive member, but the embodiment of the present specification is not limited thereto. For example, the coupling member 114 may include an acrylic adhesive member having relatively excellent adhesive strength and high hardness characteristics so that vibration of the guide member 115 is well transmitted to the display panel 111. For example, the coupling member 114 may include a double-sided foam adhesive pad having an acrylic adhesive layer or an acrylic adhesive resin cured layer.

[0102] A front surface of the coupling member 114 according to an embodiment of the present specification may be disposed on the second substrate 111b or the first polarizing member 111c of the display panel 111. The coupling member 114 may be directly coupled to an edge portion of the rear surface of the second substrate 111b in order to improve adhesion to the display panel 111. For example, the coupling member 114 may surround the side surface of the first polarizing member 111c to prevent side light leakage caused by the first polarizing member 111c.

[0103] The coupling member 114 may have a certain thickness (or height). Thus, the coupling member 114, together with the guide frame 115a of the guide member 115, may provide a sound transmission space (STS) between the display panel 111 and the backlight 113. The coupling member 114 may be formed in a four-sided closed type or closed loop shape on the guide frame 115a of the guide member 115, and the embodiment of the present specification is not limited thereto. For example, the coupling member 114 may seal the sound transmission space (STS) provided between the rearmost surface of the display panel 111 and the uppermost surface of the backlight 113, which face each other across the opening of the guide member 115, thereby preventing or minimizing leakage (or loss) of sound pressure transmitted to the sound transmission space (STS). The sound transmission space (STS) may be a sound pressure generation space in which sound pressure is generated by the vibration of the backlight 113, or a panel vibration space that smooths the vibration of the display panel 111. For example, the sound transmission space (STS) may be a sonic transmission section or an acoustic transmission section, but the embodiments herein are not limited thereto.

[0104] The cover member 130 may be configured to support the display member 110. The cover member 130 may include a back portion 131 and a side portion 135.

[0105] The rear portion 131 may be disposed on the rear surface of the display member 110. The rear portion 131 may include a bottom surface (or support surface) 130a that supports the display member 110. As such, such rear portion 131 is identical or substantially identical to the rear portion 131 described with reference to Figures 1 and 2, and therefore a duplicated description thereof may be omitted for the sake of brevity. The rear portion 131 may include the reinforcing portion described with reference to Figures 1 and 2.

[0106] The side portion 135 may be connected to an edge portion of the rear portion 131 and configured to support the display member 110. The side portion 135 may be configured to have a preset height along the edge portion of the rear portion 131, thereby providing a storage space on the bottom surface 130a of the rear portion 131. For example, the side portion 135 may be configured by bending from the edge portion of the rear portion 131. For example, the side portion 135 may be a side wall portion or a side cover portion, and the embodiments of the present specification are not limited thereto.

[0107] The support 300 may be disposed on the rear surface of the vibration member 100. The support 300 may be disposed on the rear surface of the cover member 130 configured on the vibration member 100, and may be configured to support the vibration device 500. The support 300 may support the vibration device 500 so that the shape of the vibration device 500 is non-planar (or non-flat). For example, the support 300 may be configured to apply pre-stress to the vibration device 500. For example, the support 300 may be configured to apply only tensile stress to the vibration device 500. For example, the support 300 may include a curved surface portion 315 having a curved shape (or curved structure) for applying only tensile stress to the vibration device 500.

[0108] The support portion 300 according to an embodiment of the present disclosure may include a first support portion 310 and a second support portion 320 .

[0109] Each of the first support 310 and the second support 320 may include a shape or structure capable of pre-stressing the vibration device 500. For example, each of the first support 310 and the second support 320 may include a curved portion 315 configured to apply only tensile stress to the vibration device 500.

[0110] Each of the first support portion 310 and the second support portion 320 may include a pair of first support members 311, 312.

[0111] The pair of first support members 311, 312 may be parallel to each other along the first direction (X). Each of the pair of first support members 311, 312 may include a curved surface portion 315 having a preset curvature.

[0112] The curved surface portion 315 may have a curved structure having one curvature (or a single curvature) without an inflection point. For example, the curved surface portion 315 may have a structure protruding convexly from the rear surface portion 131 of the cover member 130. For example, the curved surface portion 315 may have a single convex curved shape having a certain curvature. For example, the pair of first support members 311, 312 including the curved surface portion 315 may be a curved support portion, a support bar, a protruding bar, a curvature guide portion, a curved structure, a curved protrusion portion, an arch portion, or a stress application portion, and the examples of the present specification are not limited thereto.

[0113] According to an embodiment of the present specification, the height (or distance) (H1) between the curved portion 315 of the support part 300 and the vibration member 100 may increase from the edge portion of the curved portion 315 to the center portion. According to an embodiment of the present specification, the height (H1) of the curved portion 315 may be set within a range in which a pre-stress can be applied to the vibration device 500. For example, the height (H1) of the curved portion 315 may be 2 mm to 200 mm, but the embodiment of the present specification is not limited thereto and may be changed according to the size of the vibration device 500. When the height (H1) of the curved portion 315 is less than 2 mm, it may be difficult to apply a pre-stress to the vibration device 500 due to a relatively small curvature, or the pre-stress may be ineffective because it is negligible. When the height (H1) of the curved portion 315 exceeds 200 mm, the reliability of the vibration device 500 may be reduced due to a relatively large curvature, and the thickness of the device or display device may increase, which may make it difficult to slim it down.

[0114] Each of the pair of first support members 311, 312 may be disposed on the rear surface portion 131 of the cover member 130 so as to be parallel to the first direction (X). Each of the pair of first support members 311, 312 may support a pair of first edge portions of the edge portion of the vibration device 500 that are parallel to the first direction (X). This allows the vibration device 500 to be bent into a curved shape by the curved surface portions 315 of each of the pair of first support members 311, 312. For example, the vibration device 500 may be bent into a curved shape by the curved surface of the curved surface portions 315 of each of the pair of first support members 311, 312. Each of the pair of first support members 311, 312 may include an arch shape having a preset curvature between a pair of short sides 311a, 311b that are parallel to the second direction (Y).

[0115] Each of the first support portion 310 and the second support portion 320 may further include a pair of second support members (or support bars) 321, 322.

[0116] The pair of second support members 321, 322 may be parallel to each other along the second direction (Y). Each of the pair of second support members 321, 322 may be connected or disposed between the pair of first support members (or support bars) 311, 312. Each of the pair of second support members 321, 322 may be disposed on the rear portion 131 of the cover member 130 so as to be parallel to the second direction (Y). Each of the pair of second support members 321, 322 may support a pair of second edge portions of the edge portions of the vibration device 500 that are parallel to the second direction (Y).

[0117] 4 shows that each of the pair of first support members 311, 312 and each of the pair of second support members 321, 322 are separate from each other, but the embodiments of the present specification are not limited thereto. For example, each of the pair of first support members 311, 312 and each of the pair of second support members 321, 322 may be integrated to have one frame shape.

[0118] According to the embodiment of the present specification, when the vibration device 500 has a rectangular shape having long sides and short sides, the curved surface portions 315 of the pair of first support members 311, 312 can support the edge portion of the short side of the vibration device 500 in a curved shape. For example, when each of the pair of first support members 311, 312 is arranged on the rear surface portion 131 of the cover member 130 so as to be parallel to the first direction (X) and supports the edge portion of the short side of the vibration device 500, the long side of the vibration device 500 can be arranged side by side with the second direction (Y). For example, when each of the pair of first support members 311, 312 is arranged on the rear surface portion 131 of the cover member 130 so as to be parallel to the second direction (Y) and supports the edge portion of the short side of the vibration device 500, the long side of the vibration device 500 can be arranged side by side with the first direction (X).

[0119] According to an embodiment of the present specification, each of the first support part 310 and the second support part 320 may include one or more of a metal material, a plastic material, and an elastic material, but the embodiment of the present specification is not limited thereto. For example, the metal material may be an electrogalvanized steel plate, but the embodiment of the present specification is not limited thereto. The plastic material may be a mixture of a PC (Polycarbonate) resin and an ABS (Acrylonitrile Butadiene Styrene) resin, but the embodiment of the present specification is not limited thereto. For example, the elastic material may include an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin, but the embodiment of the present specification is not limited thereto.

[0120] According to an embodiment of the present specification, each of the first support portion 310 and the second support portion 320 may be coupled or attached to the rear surface of the vibration member 100 via an adhesive member. For example, each of the first support portion 310 and the second support portion 320 may be coupled or attached to the rear surface portion 131 of the cover member 130 via an adhesive member.

[0121] According to an embodiment of the present specification, each of the first support portion 310 and the second support portion 320 may be coupled or fastened to the rear surface of the vibration member 100 by a fastening member such as a screw or a nut. For example, each of the first support portion 310 and the second support portion 320 may be coupled or fastened to the rear surface portion 131 of the cover member 130 by a fastening member.

[0122] According to an embodiment of the present specification, each of the first support part 310 and the second support part 320 may be made of a metal material and may be coupled or fixed to the rear surface of the vibration member 100 by welding or the like. For example, each of the first support part 310 and the second support part 320 may be coupled or fixed to the rear surface part 131 of the cover member 130 by welding or the like.

[0123] According to an embodiment of the present specification, each of the first support part 310 and the second support part 320 may be made of a metal material and may be formed as one body or integral with the rear surface of the vibration member 100 without a separate intermediate medium. For example, each of the first support part 310 and the second support part 320 may be formed as one body or integral with the rear surface 131 of the cover member 130 without a separate intermediate medium.

[0124] The vibration device 500 may be coupled or attached to the curved portion 315 of the support portion 300. For example, the vibration device 500 may be coupled or attached to the curved portion 315 to have a conformal shape that follows the curvature of the curved portion 315, but the embodiments herein are not limited thereto. For example, the vibration device 500 may be coupled or attached to the curved portion 315 to have a conformal shape that follows the contour of the curvature of the curved portion 315. For example, the vibration device 500 may be coupled or attached to the curved portion 315 to have a non-conformal shape that does not follow the curvature of the curved portion 315, or to have a curvature that is different from the curvature of the curved portion 315. For example, the vibration device 500 may be coupled or attached to the curved portion 315 to have a non-conformal shape that does not follow the contour of the curvature of the curved portion 315.

[0125] According to an embodiment of the present disclosure, the vibration device 500 may be prestressed or prestressed by the curved portion 315 of the support 300 by being coupled or attached to the curved portion 315 of the support 300. For example, the vibration device 500 may be prestressed or prestressed by the curved portion 315 of the support 300 by being coupled or attached to the curved portion 315 of the support 300. For example, the vibration device 500 may be tensile stressed or include tensile stress due to the curvature of the curved portion 315 of the support 300. For example, the curved portion 315 of the support 300 may be configured to apply only tensile stress to the vibration device 500 to improve the vibration characteristics of the vibration device 500. For example, if the vibration device 500 is compressively stressed by the curved portion 350 of the support 300 instead of tensilely stressed, the vibration characteristics of the vibration device 500 may be degraded.

[0126] According to one embodiment of the present specification, the vibration device 500 may be pre-stressed (or pre-tensile stressed) by the curved portion 315 of the support portion 300 or may be bent into a curved shape, thereby increasing the second moment of area. The vibration device 500 may reduce the number of resonant frequencies generated during vibration due to the increase in the second moment of area, and as the number of nodes (or nodal points) decreases, the acoustic characteristics and / or sound pressure characteristics may be improved. For example, the vibration device 500 may improve the acoustic characteristics and / or sound pressure characteristics by correcting the mode shape due to the reduction in resonant frequencies caused by the increase in the second moment of area.

[0127] According to one embodiment of the present specification, the vibration device 500 is subjected to pre-stress (or pre-tensile stress) by the curved portion 315, or vibrates while being bent into a curved shape, so that the vibration direction (or displacement direction or bending direction) can be unified in one direction and the dynamic displacement can be expanded. As a result, the sound generated by the vibration of the vibration device 500 can be concentrated in the center direction of the curved portion 315, and the sound pressure transmitted to the vibration member 100 can be increased or amplified, so that the acoustic characteristics and / or sound pressure characteristics generated by the vibration of the vibration member 100 can be improved.

[0128] The first vibration device 500-1 of the vibration device 500 may be coupled or attached to the curved portion 315 of the first support portion 310. The first vibration device 500-1 may be coupled or attached to the curved portion 315 to have a conformal shape that follows the curvature of the curved portion 315 as it is, but the examples of the present specification are not limited thereto. For example, the first vibration device 500-1 may be coupled or attached to the curved portion 315 to have a conformal shape that follows the contour of the curvature of the curved portion 315 as it is. For example, the first vibration device 500-1 may be coupled or attached to the curved portion 315 to have a non-conformal shape that does not follow the curvature of the curved portion 315 as it is, or to have a curvature that is different from the curvature of the curved portion 315. For example, the first vibration device 500-1 may be coupled or attached to the curved portion 315 to have a non-conformal shape that does not follow the contour of the curvature of the curved portion 315 as it is. As a result, the first vibrating device 500-1 can generate or output sound or sound waves by receiving pre-stress (or pre-tensile stress) by the curved portion 315 or vibrating in a state bent into a curved shape. As a result, the first region of the vibrating member 100 overlapping with the first vibrating device 500-1 can generate or output sound and / or haptic feedback by vibrating in response to transmission of sound or sound waves generated by the vibration of the first vibrating device 500-1.

[0129] The second vibration device 500-2 of the vibration device 500 may be coupled or attached to the curved portion 315 of the second support portion 320. The second vibration device 500-2 may be coupled or attached to the curved portion 315 to have a conformal shape that follows the curvature of the curved portion 315 as it is, but the examples herein are not limited thereto. For example, the second vibration device 500-2 may be coupled or attached to the curved portion 315 to have a conformal shape that follows the contour of the curvature of the curved portion 315 as it is. For example, the second vibration device 500-2 may be coupled or attached to the curved portion 315 to have a non-conformal shape that does not follow the curvature of the curved portion 315 as it is, or to have a curvature that is different from the curvature of the curved portion 315. For example, the second vibration device 500-2 may be coupled or attached to the curved portion 315 to have a non-conformal shape that does not follow the contour of the curvature of the curved portion 315 as it is. As a result, the second vibrating device 500-2 can generate or output sound or sound waves by receiving pre-stress (or pre-tensile stress) from the curved portion 315 or vibrating in a state bent into a curved shape. As a result, the second region of the vibrating member 100 overlapping with the second vibrating device 500-2 can generate or output sound and / or haptic feedback by vibrating in response to transmission of sound or sound waves generated by the vibration of the second vibrating device 500-2.

[0130] The device 1 according to the first embodiment of the present specification may further include a gap space (GS) provided between the vibration member 100 and the vibration device 500 by the support portion 300.

[0131] The gap space (GS) may be provided between the rear part 131 of the cover member 130 and the vibration device 500 by the support part 300. The gap space (GS) may include a space where sound or sound pressure is generated by the vibration of the vibration device 500, a space that smooths the vibration of the vibration device 500, or a space or path where sound waves generated by the vibration of the vibration device 500 are propagated to the vibration member 100. For example, the gap space (GS) may be an air gap, a sound pressure generation space, an acoustic space, a sound pressure space, a resonating part, a sound box, a sound wave propagation path, an acoustic energy incidence part, or an acoustic path, and examples of the present specification are not limited thereto.

[0132] The vibration device 500 can generate or output sound or sound waves in the gap space (GS) by vibrating in a state where it is pre-stressed (or pre-tensile stressed) by the curved portion 315 of the support portion 300 or bent into a curved shape. As a result, the vibration member 100 can vibrate by the sound (or sound wave) in the gap space (GS) to generate or output sound or haptic feedback. For example, in the display member 110, sound generated by the vibration of the backlight 113 due to the vibration of the cover member 130 is output to the sound transmission space (STS), and sound and / or haptic feedback can be generated by the vibration of the display panel 111 due to the sound in the sound transmission space (STS).

[0133] Therefore, the device 1 according to the first embodiment of the present specification includes a vibration device 500 that is subjected to a pre-stress (or pre-tensile stress) by the support part 300 or vibrates while bent into a curved shape, thereby increasing the second moment of area of ​​the vibration device 500 or unifying the vibration direction of the vibration device 500 in one direction, thereby improving the acoustic characteristics and / or sound pressure characteristics generated by the vibration member 100 vibrating due to the vibration of the vibration device 500.

[0134] Fig. 5 is a perspective view of a vibration device according to an embodiment of the present specification, the vibration device shown in Figs. 2 and 3 or the first and second vibration devices.

[0135] Referring to FIG. 5, a vibration device 500 according to a first embodiment of the present specification or a first and second vibration device 500-1, 500-2 may include a vibration generator 510, a first connecting member 520, a plate 530, and a second connecting member 540.

[0136] The vibration generator 510 may be configured to vibrate (or displace) by an applied drive signal (or electrical signal or voice signal) to vibrate (or displace) the vibrating member 100. For example, the vibration generator 510 may be a vibration element, a vibrating structure, a vibrator, a vibration generating element, an acoustic generator, an acoustic element, an acoustic generating structure, or an acoustic generating element, but examples herein are not limited thereto.

[0137] The vibration generator 510 according to an embodiment of the present specification may include a piezoelectric material (or an electroactive material) having piezoelectric properties. The vibration generator 510 can vibrate (or displace) itself or vibrate (or displace) a vibrating member by vibration (or displacement) of the piezoelectric material due to an electric signal applied to the piezoelectric material. For example, the vibration generator 510 can vibrate (or displace) by alternately repeating contraction and expansion due to the piezoelectric effect (or piezoelectric properties). For example, the vibration generator 510 can vibrate (or displace) in the vertical direction (or thickness direction) (Z) by alternately repeating contraction and expansion due to the inverse piezoelectric effect.

[0138] The vibration generator 510 can be configured to be flexible. For example, the vibration generator 510 can be configured to bend into a non-planar shape, including a curved surface.

[0139] The vibration generator 510 according to one embodiment of the present specification may include a rectangular shape having a first length parallel to a first direction (X) and a second length parallel to a second direction (Y). For example, the vibration generator 510 may include a square shape with the first and second lengths being the same, or may include a rectangular shape with the first and second lengths being different.

[0140] The first connecting member 520 may be connected or coupled to any of a first surface and a second surface different (or opposite) from the first surface of the vibration generator 510. For example, in the vibration generator 510, the first surface may be the top surface, front surface, upper surface, or front surface. In the vibration generator 510, the second surface may be the bottom surface, rear surface, rear surface, lower surface, or rear surface. For example, the first connecting member 520 may be an adhesive member or a first adhesive member.

[0141] According to an embodiment of the present specification, the first connecting member 520 may include an adhesive layer (or a pressure-sensitive adhesive layer) having a relatively strong adhesive force. For example, the first connecting member 520 may include a double-sided adhesive tape, a double-sided adhesive foam pad, or an adhesive sheet. For example, when the first connecting member 520 includes an adhesive sheet (or an adhesive layer), the first connecting member 520 may include only the adhesive layer or the adhesive layer without a base member such as a plastic material.

[0142] The adhesive layer (or sticky layer) of the first connecting member 520 according to one embodiment of the present specification may include, but is not limited to, epoxy, acrylic, silicone, or urethane. The adhesive layer (or sticky layer) of the first connecting member 520 according to other embodiments of the present specification may include, but is not limited to, a pressure sensitive adhesive (PSA), an optically clear adhesive (OCA), or an optically clear resin (OCR).

[0143] The plate 530 may be coupled or attached to the first coupling member 520. The plate 530 may have a larger size or area than the vibration generator 510. For example, the center of the plate 530 may be located or aligned with the center of the vibration generator 510. The plate 530 may be coupled or attached to the curved portion 315 of the support 300 shown in FIG. 3 via the second coupling member 540.

[0144] According to an embodiment of the present specification, the vibration generator 510 may have a modulus larger than the modulus (or Young's modulus) of each of the first connecting member 520, the plate 530, and the second connecting member 540, or may have a modulus equal to the modulus of each of the first connecting member 520 and the second connecting member 540 and larger than the plate 530. This allows the vibration generator 510 to be bent into a curved shape. For example, the plate 530 may have a modulus smaller than that of the vibration generator 510. Therefore, the vibration generator 510 may be bent into a shape corresponding to the curved portion 315 of the support part 300 via the first connecting member 520, the plate 530, and the second connecting member 540, thereby improving the reliability of sound reproduction.

[0145] In addition, in the vibration generator 510 according to an embodiment of the present specification, the adhesion between the first connecting member 520 and the curved surface portion 315 of the support unit 300 via the plate 530 and the second connecting member 540 may be improved, thereby improving the reliability of sound reproduction and improving the acoustic characteristics and / or sound pressure characteristics in the low frequency range. For example, if the elastic modulus of the plate 530 is greater than the elastic modulus of the vibration generator 510, the vibration generator 510 is less likely to bend into a shape corresponding to the curved surface portion 315 of the support unit 300, and the adhesion between the first connecting member 520 and the curved surface portion 315 of the support unit 300 via the plate 530 and the second connecting member 540 may be reduced, thereby reducing the reliability of sound reproduction and reducing the acoustic characteristics and / or sound pressure characteristics in the low frequency range.

[0146] According to an embodiment of the present disclosure, the plate 530 may include a material that allows the vibration generator 510 to bend into a curved shape. For example, the plate 530 may include a material having a bending stiffness lower than the bending stiffness of the vibration generator 510. The plate 530 may include one or more of metal, glass, plastic, rubber, fiber, leather, wood, cloth, and paper. For example, the plate 530 may be a support plate, a rigid plate, a transmission plate, an intermediate plate, or a vibration transmission plate, but the embodiments of the present disclosure are not limited thereto.

[0147] 3, the second connecting member 540 can connect or bond the plate 530 to the curved portion 315 of the support 300. For example, the second connecting member 540 can be disposed between the curved portion 315 of the support 300 and the plate 530. For example, the second connecting member 540 can be disposed between the curved portion 315 of the support 300 and a front edge portion of the plate 530.

[0148] The second connecting member 540 may include an adhesive layer (or a sticky layer) having a relatively strong adhesive or bonding strength. The second connecting member 540 may include an adhesive material having a different modulus than the first connecting member 520. For example, the first connecting member 520 may have a greater modulus (or adhesive strength or hardness) than the second connecting member 540 so that the plate 530 and the vibration generator 510 can be smoothly bent into a curved shape.

[0149] The second connecting member 540 according to the embodiment of the present specification may include an opening 541. Thus, the second connecting member 540 may be disposed or interposed between the curved portion 315 of the support part 300 and an edge portion of the front surface of the plate 530. For example, the second connecting member 540 may be configured in a square band shape having the opening 541.

[0150] The second connection member 540 according to another embodiment of the present specification may have a structure divided into four or more parts so as to correspond to or overlap with the edge portion of the front surface of the plate 530 .

[0151] In the vibration device 500 according to the first embodiment of the present specification or the first and second vibration devices 500-1 and 500-2, the vibration generator 510 is coupled or attached to the curved portion 315 of the support portion 300 via the first connecting member 520, the plate 530, and the second connecting member 540, and may be in a state in which it is pre-stressed (or pre-tensile stressed) or bent into a curved shape due to the curved shape of the curved portion 315, or may include a state in which it is bent into a curved shape. As a result, the vibration generator 510 can vibrate in a state in which it is pre-stressed (or pre-tensile stressed) or bent into a curved shape, and therefore may include an effect of increasing the second moment of area or unifying the vibration direction.

[0152] The vibration device 500 according to the first embodiment of the present specification or the first and second vibration devices 500-1, 500-2 may further include a pad 550.

[0153] The pad 550 may be coupled or attached to the second surface of the vibration generator 510. For example, the pad 550 may be coupled or attached to a central portion of the second surface of the vibration generator 510. The pad 550 may have the same size as the vibration generator 510 or may have a smaller size. For example, the pad 550 may have a polygonal column shape or a circular column shape, and examples herein are not limited thereto.

[0154] The pad 550 according to one embodiment of the present specification may include a material having a stiffness lower than the bending stiffness of the vibration generator 510. The pad 550 according to another embodiment of the present specification may be made of an elastic material that can act as a weight (or mass) with respect to the vibration generator 510.

[0155] The pad 550 according to the embodiment of the present specification can reduce the lowest resonance frequency (or the lowest natural frequency) of the vibration generator 510 by increasing the weight of the vibration generator 510. Therefore, the vibration generator 510 can vibrate at a relatively low frequency due to the reduction in the lowest resonance frequency (or the lowest natural frequency) caused by the increase in weight of the pad 550. This can improve the acoustic characteristics and / or sound pressure characteristics of the low frequency band generated by the vibration of the vibration generator 510. For example, the pad 550 can be a resonant pad, a mass member, a weight, or a weight member, but the embodiment of the present specification is not limited thereto. For example, the low frequency band can be 300 Hz or 500 Hz or less, but the embodiment of the present specification is not limited thereto.

[0156] Fig. 6 is another cross-sectional view taken along line II' shown in Fig. 2, and Fig. 7 is a rear perspective view showing the cover member shown in Fig. 6. Figs. 6 and 7 are diagrams for explaining an apparatus according to a second embodiment of the present invention. Figs. 6 and 7 show an apparatus in which holes are further configured in the apparatus described with reference to Figs. 1 to 5.

[0157] 6 and 7, the apparatus 2 according to the second embodiment of the present invention may include a vibration member 100, a support 300, and a vibration device 500. As shown in FIG.

[0158] The vibration member 100 may include one or more holes 137 overlapping with the support part 300 or the vibration device 500. For example, the cover member 130 of the vibration member 100 may include one or more holes 137 overlapping with the support part 300 or the vibration device 500. The vibration member 100 is the same or substantially the same as that described with reference to FIGS. 1 to 5 except that the cover member 130 has holes 137. Therefore, in the following description, the remaining components, except for the one or more holes and the components related thereto, are denoted by the same or similar reference numerals, and redundant description thereof may be omitted for brevity.

[0159] The cover member 130 may further include one or more holes 137 overlapping with the vibration device 500. The one or more holes 137 may be covered by the vibration device 500. For example, the one or more holes 137 may be disposed between a pair of first support members (or support bars) 311, 312 shown in FIG 4. For example, the one or more holes 137 may be surrounded by a pair of first support members (or support bars) 311, 312 and a pair of second support members (or support bars) 321, 322 shown in FIG 4.

[0160] One or more holes 137 may be formed in the rear part 131 of the cover member 130 so as to overlap with the vibration device 500. For example, one or more holes 137 may be formed to penetrate the rear part 131 of the cover member 130 along the third direction (Z). Thus, the one or more holes 137 may be an opening, a communication part, an opening hole, a communication hole, a through part, a through hole, a support hole, a slit, a slot, or an acoustic passage part, and the embodiments of the present specification are not limited thereto. For example, the third direction (Z) may be a thickness direction or a height direction of the cover member 130, or a Z-axis direction in the XYZ axis direction.

[0161] According to an embodiment of the present invention, the one or more holes 137 may have the same shape as the vibration device 500. For example, if the vibration device 500 has a square shape, the one or more holes 137 may have a square shape, and if the vibration device 500 has a rectangular shape, the one or more holes 137 may have a rectangular shape, but the embodiments of the present specification are not limited thereto.

[0162] One or more holes 137 may be disposed between the vibration member 100 and the vibration devices 500-1, 500-2. As a result, the one or more holes 137 may provide a gap space (GS) between the vibration member 100 and the vibration devices 500-1, 500-2. As a result, compared to the device 1 shown in FIG. 3, the gap space (GS) between the vibration member 100 and the vibration device 500 may be expanded by a volume (or space) corresponding to the thickness of the rear part 131 of the cover member 130 and the size of the hole 137. For example, the gap space (GS) may be an air gap, a sound pressure generation space, an acoustic space, a sound pressure space, a resonating part, a sound box, a sound wave propagation path, an acoustic energy incidence part, or an acoustic path, and the embodiments of the present specification are not limited thereto.

[0163] One or more holes 137 may be disposed between the backlight 113 of the vibrating member 100 and the vibrating devices 500-1, 500-2. Thereby, the one or more holes 137 may provide a gap space (GS) between the backlight 113 and the vibrating devices 500-1, 500-2. For example, the one or more holes 137 may provide a gap space (GS) between the reflective sheet 113b of the backlight 113 and the vibrating devices 500-1, 500-2.

[0164] Each of the first and second vibration devices 500-1, 500-2 of the vibration device 500 is connected or attached to the curved portion 315 of the support portion 300 so as to cover one or more holes 137, and is thereby able to vibrate while being pre-stressed (or pre-tensile stressed) by the curvature of the curved portion 315 or bent into a curved shape, which may include effects such as an increase in the second moment of area or unification of the vibration direction.

[0165] Each of the first and second vibrating devices 500-1, 500-2 of the vibrating device 500 can face the back surface of the vibrating member 100 through one or more holes 137, or directly face the back surface of the vibrating member 100. For example, each of the first and second vibrating devices 500-1, 500-2 can face the backlight 113 of the display member 110 of the vibrating member 100 through one or more holes 137, or directly face the backlight 113. For example, each of the first and second vibrating devices 500-1, 500-2 can face the reflective sheet 113b of the backlight 113 through one or more holes 137, or directly face the reflective sheet 113b. As a result, the sound (or sound waves) generated by the driving of each of the first and second vibrating devices 500-1, 500-2 can be directly transmitted to the display member 110 of the vibrating member 100 through one or more holes 137 or gap spaces (GS). For example, the sound (or sound waves) generated by the driving of each of the first and second vibrating devices 500-1, 500-2 can be directly transmitted to the backlight 113 of the display member 110 through one or more holes 137 or gap spaces (GS). As a result, the vibration of each of the first and second vibrating devices 500-1, 500-2 can be efficiently transmitted to the display member 110 or the vibrating member 100, so that the acoustic characteristics and / or sound pressure characteristics generated by the vibration of the display member 110 or the vibrating member 100 can be improved. For example, each of the first and second vibration devices 500-1, 500-2 vibrates in response to a drive signal to output sound (or sound waves) to the gap space (GS), and sound generated by the vibration of the backlight 113 due to the sound in the gap space (GS) is output to the sound transmission space (STS), and sound and / or haptic feedback can be generated by the vibration of the display panel 111 due to the sound in the sound transmission space (STS).

[0166] In the device 2 according to the second embodiment of the present specification, the moment of inertia of the vibration device 500, which vibrates while being subjected to a pre-stress (or pre-tensile stress) or bent into a curved shape, is increased, or the vibration direction of the vibration device 500 is unified, thereby improving the acoustic characteristics and / or sound pressure characteristics generated by the vibration of the vibration member 100. In addition, the device 2 according to the second embodiment of the present specification includes one or more holes 137 formed in the vibration member 100 or the cover member 130, so that the sound (or sound waves) generated by the vibration of the vibration device 500 can be directly transmitted to the display member 110, thereby increasing the transmission efficiency of the vibration, and further improving the acoustic characteristics and / or sound pressure characteristics generated by the vibration of the vibration member 100 or the display member 110.

[0167] 8 is a rear perspective view showing a support and a cover member according to another embodiment of the present specification, which is a modification of the support and cover member shown in FIG.

[0168] 6 and 8, the rear surface of the vibrating member 100 or the rear surface portion 131 of the cover member 130 according to other embodiments of the present specification may include a first region 100A1, a second region 100A2, and a third region 100A3. For example, the rear surface of the vibrating member 100 or the rear surface portion 131 of the cover member 130 may include first to third regions 100A1, 100A2, and 100A3 based on a first length (or horizontal length) parallel to the first direction (X).

[0169] The first region 100A1 may be a first back region, a left region, or a back left region. The second region 100A2 may be a second back region, a right region, or a back right region. The third region 100A3 may be a region between the first region 100A1 and the second region 100A2. For example, the third region 100A3 may be a middle region that includes a middle line of the first length of the support member 300.

[0170] The support part 300 may include curved surface parts 315 arranged in the first to third regions 100A1, 100A2, and 100A3, respectively, of the vibrating member 100 or the back surface part 131 of the cover member 130. For example, the support part 300 may include first to third support parts 310, 320, and 330 having curved surface parts 315 arranged in the first to third regions 100A1, 100A2, and 100A3, respectively.

[0171] Each of the first to third support parts 310, 320, 330 may be coupled or connected to the rear surface of the vibrating member 100 or the rear surface part 131 of the cover member 130 so as to have the same size and shape as each other. Each of the first to third support parts 310, 320, 330 may have a square shape or a rectangular shape. Each of the first to third support parts 310, 320, 330 may have the same curvature as each other, and each of the first to third support parts 310, 320, 330 is the same or substantially the same as that described with reference to FIGS. 3 and 4, so that repeated description thereof may be omitted for brevity.

[0172] The vibration device 500 may include first to third vibration devices arranged on the curved portions 315 of the first to third support portions 310, 320, and 330, respectively. As described above, each of the first to third vibration devices is subjected to pre-stress (or pre-tensile stress) due to the curvature of the curved portion 315, or can vibrate while being bent into a curved shape, and therefore may include the effect of increasing the second moment of area or unifying the vibration direction, as described above.

[0173] The rear surface of the vibration member 100 or the cover member 130 may further include one or more holes 137 overlapping with the vibration device 500 arranged in one or more of the first to third support parts 310, 320, and 330. For example, the one or more holes 137 may be configured in the rear portion 131 of the cover member 130 so as to overlap with the vibration device 500 arranged in the third support part 330. The one or more holes 137 are the same or substantially the same as those described in FIGS. 6 and 7, except that they are formed in the rear portion 131 of the cover member 130 so as to overlap with the vibration device 500 arranged in the third support part 330, and therefore repeated description thereof may be omitted for brevity. As a result, sound (or sound waves) generated by vibration of the vibration device 500 arranged on the third support part 330 can be directly transmitted to the third region 100A3 of the display member 110 through one or more holes 137, thereby increasing the vibration transmission efficiency and further improving the low-frequency acoustic characteristics and / or sound pressure characteristics generated by vibration of the vibrating member 100 or the third region 100A3 of the display member 110.

[0174] According to an embodiment of the present specification, each of the first to third vibration devices arranged on the curved surface portion 315 of each of the first to third support portions 310, 320, 330 can be configured to generate or output sound in the same sound range. As a result, the device 2 according to the second embodiment of the present specification can output stereophonic sound by sounds output from the left side, right side, and center side (or central side) of the vibrating member 100 due to vibration of the vibrating member 100 caused by vibration of each of the first to third vibration devices, and can have a three-channel sound output characteristic.

[0175] According to another embodiment of the present specification, one or more of the first to third vibration devices arranged on the curved surface portion 315 of each of the first to third support portions 310, 320, and 330 may be configured to generate or output sounds in different sound ranges. For example, the third vibration device may be configured to generate or output sounds in a low frequency range, and each of the first and second vibration devices may be configured to generate or output sounds in a wider frequency range than the third vibration device, but the embodiment of the present specification is not limited thereto. As a result, the device 2 according to the second embodiment of the present specification can generate sounds, for example, stereo sounds, through the left and right sounds output by the vibration of the vibration member 100 caused by driving the first and second vibration devices, respectively, and the acoustic characteristics and / or sound pressure characteristics of the low frequency range may be improved by the sound in the low frequency range output by the vibration of the vibration member 100 caused by driving the third vibration device.

[0176] 9 is a rear perspective view showing a support part and a cover member according to another embodiment of the present specification, in which the first and second support parts shown in FIG.

[0177] 6 and 9, a support portion 300 according to another embodiment of the present specification may include first to third support portions 310, 320, 330 arranged in the first to third regions 100A1, 100A2, 100A3, respectively, of the rear portion 131 of the vibration member 100 or the cover member 130, and having a curved portion 315.

[0178] One or more of the first to third support portions 310, 320, and 330 may have different sizes. For example, the first and second support portions 310 and 320 may be configured to have a smaller size than the third support portion 330.

[0179] Each of the first and second vibration devices disposed on the first and second support parts 310, 320 may have a size relatively smaller than the third vibration device disposed on the third support part 330. Thereby, each of the first and second vibration devices may be configured to generate sound in a high frequency range.

[0180] Fig. 10 is a diagram showing a vibration generator according to another embodiment of the present specification, Fig. 11 is a cross-sectional view taken along line II-II' shown in Fig. 10, and Fig. 12 is a perspective view showing the vibrating part shown in Fig. 11. Figs. 10 to 12 are diagrams showing another embodiment of the vibration generator described with reference to Figs. 1 to 9.

[0181] 10 to 12, the vibration generator 510 according to other embodiments of the present specification may be represented as a flexible vibration structure, a flexible vibrator, a flexible vibration generating element, a flexible vibration generator, a flexible acoustic device, a flexible acoustic element, a flexible acoustic generating element, a flexible acoustic generator, a flexible actuator, a flexible speaker, a flexible type piezoelectric speaker, a film actuator, a film type piezoelectric composite actuator, a film speaker, a film type piezoelectric speaker, or a film type piezoelectric composite speaker, but the embodiments of the present specification are not limited thereto.

[0182] A vibration generator 510 according to another embodiment of the present specification may include a vibration section 511. The vibration section 511 may include a vibration layer 511a, a first electrode layer 511b, and a second electrode layer 511c.

[0183] The vibration layer 511a may include a piezoelectric material (or an electroactive material) having a piezoelectric effect. For example, the piezoelectric material may have a characteristic that a potential difference is generated by dielectric polarization due to a change in the relative positions of positive (+) ions and negative (-) ions when pressure or twisting phenomenon acts on the crystal structure due to an external force, and vibration is generated by an electric field due to an applied voltage. For example, the vibration layer 511a may be expressed as a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric material portion, an electroactive portion, a piezoelectric structure, a piezoelectric composite layer, a piezoelectric composite, or a piezoelectric ceramic composite, and the embodiments of the present specification are not limited thereto. The vibration layer 511a may be made of a transparent, semitransparent, or opaque piezoelectric material. The vibration layer 511a may be transparent, semitransparent, or opaque.

[0184] The vibration layer 511a according to an embodiment of the present specification may include a plurality of first portions 511a1 and a plurality of second portions 511a2. For example, the plurality of first portions 511a1 and the plurality of second portions 511a2 may be arranged alternately and repeatedly along a first direction (X) (or a second direction (Y)). For example, the first direction (X) may be a horizontal direction of the vibration layer 511a. The second direction (Y) may be a vertical direction of the vibration layer 511a intersecting with the first direction (X), but is not limited thereto, and the first direction (X) may be a vertical direction of the vibration layer 511a, and the second direction (Y) may be a horizontal direction of the vibration layer 511a.

[0185] Each of the first portions 511a1 may be made of an inorganic material. The inorganic material may include a piezoelectric material including a piezoelectric effect, a composite piezoelectric material, or an electroactive material.

[0186] Each of the first portions 511a1 may be made of a ceramic-based material capable of forming a relatively high vibration, or may be made of a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure may have piezoelectric and inverse piezoelectric effects and may have orientation. The perovskite crystal structure may be represented by a chemical formula of ABO3, where the A site is made of a divalent metal element and the B site is made of a tetravalent metal element. As an example of the present specification, in the chemical formula of ABO3, the A site and the B site may be cations, and O may be an anion. For example, each of the first portions 511a1 may include at least one of PbTiO3, PbZrO3, PbZrTiO3, BaTiO3, and SrTiO3, but the examples of the present specification are not limited thereto.

[0187] The vibration layer 511a or first portion 511a1 according to other embodiments of the present specification may include one or more of lead (Pb), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), and niobium (Nb), although embodiments of the present specification are not limited thereto.

[0188] The vibration layer 511a or the first portion 511a1 according to other embodiments of the present specification may include a PZT (lead zirconate titanate)-based material including lead (Pb), zirconium (Zr), and titanium (Ti), or a PZNN (lead zirconate nickel niobate)-based material including lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but the embodiments of the present specification are not limited thereto. In other embodiments, the vibration layer 511a or the first portion 511a1 may include at least one of CaTiO3, BaTiO3, and SrTiO3 that do not include lead (Pb), but the embodiments of the present specification are not limited thereto.

[0189] Each of the plurality of first portions 511a1 according to an embodiment of the present specification may be disposed between the plurality of second portions 511a2 and may have a first width (W1) parallel to the first direction (X) (or the second direction (Y)) and a length parallel to the second direction (Y) (or the first direction (X)). Each of the plurality of second portions 511a2 may have a second width (W2) parallel to the first direction (X) (or the second direction (Y)) and a length parallel to the second direction (Y) (or the first direction (X)). The first width (W1) may be the same as or different from the second width (W2). For example, the first width (W1) may be larger than the second width (W2). For example, the first portion 511a1 and the second portion 511a2 may include a line shape or a stripe shape having the same or different sizes. Therefore, the vibration layer 511a can have a resonant frequency of 20 kHz or less by having a 2-2 composite structure having a piezoelectric characteristic of a 2-2 vibration mode, and the embodiments of the present specification are not limited thereto. For example, the resonant frequency of the vibration layer 511a can be changed based on at least one of the shape, length, and thickness.

[0190] In the vibration layer 511a, the plurality of first portions 511a1 and the plurality of second portions 511a2 may be arranged (or arrayed) next to each other on the same plane (or the same layer). Each of the plurality of second portions 511a2 may be coupled or bonded to the adjacent first portions 511a1 by being configured to fill the gap between two adjacent first portions 511a1. This allows the vibration layer 511a to be expanded to a desired size or length by the side coupling (or coupling) of the first portions 511a1 and the second portions 511a2.

[0191] In the vibration layer 511a, the width (W2) of each of the plurality of second portions 511a2 may gradually decrease from the middle portion of the vibration layer 511a or the vibration generator 510 toward both edge portions (or both tips).

[0192] According to an embodiment of the present specification, the second portion 511a2 having the largest width (W2) among the plurality of second portions 511a2 may be located at a portion where the largest stress is concentrated when the vibrating layer 511a or the vibration generator 510 vibrates in the vertical direction (Z) (or thickness direction). The second portion 511a2 having the smallest width (W2) among the plurality of second portions 511a2 may be located at a portion where the smallest stress is generated relatively when the vibrating layer 511a or the vibration generator 510 vibrates in the vertical direction (Z). For example, the second portion 511a2 having the largest width (W2) among the plurality of second portions 511a2 may be disposed in an intermediate portion of the vibrating layer 511a, and the second portion 511a2 having the smallest width (W2) among the plurality of second portions 511a2 may be disposed at both edge portions of the vibrating layer 511a. As a result, when the vibration layer 511a or the vibration generator 510 vibrates in the vertical direction (Z), the interference of sound waves generated at the portion where the greatest stress is concentrated or the overlap of resonance frequencies can be minimized, and thus the phenomenon of dipping of sound pressure occurring in the low frequency range can be improved, and the flatness of acoustic characteristics in the low frequency range can be improved. For example, the flatness of acoustic characteristics can be the magnitude of deviation between the maximum sound pressure and the minimum sound pressure.

[0193] In the vibration layer 511a, each of the first portions 511a1 may have a different size (or width). For example, the size (or width) of each of the first portions 511a1 may gradually decrease or increase from the middle portion of the vibration layer 511a or the vibration generator 510 toward both edge portions (or both ends). For example, the vibration layer 511a may have various natural vibration frequencies due to the vibration of each of the first portions 511a1 having different sizes, thereby improving the sound pressure characteristics of the sound and expanding the reproduction band of the sound.

[0194] Each of the second portions 511a2 may be disposed between the first portions 511a1. This allows the vibration layer 511a or the vibration generator 510 to increase the vibration energy due to the link in the unit cell of the first portion 511a1 by the second portion 511a2, thereby increasing the vibration characteristics and ensuring the piezoelectric characteristics and flexibility. For example, the second portion 511a2 may be one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but the examples of the present specification are not limited thereto.

[0195] Each of the second parts 511a2 according to an embodiment of the present specification may be made of an organic material part. For example, the organic material part may be disposed between the inorganic material parts to absorb impacts applied to the inorganic material part (or the first part), to release stress concentrated on the inorganic material part, to improve durability of the vibration layer 511a or the vibration generator 510, and to provide flexibility to the vibration layer 511a or the vibration generator 510. Thus, the vibration generator 510 may be bent into a shape that matches the shape of the curved part of the support by having flexibility. For example, the vibration generator 510 may be disposed along the shape of the curved part of the support by having flexibility.

[0196] The organic material portion of the second portion 511a2 may include an organic material, an organic polymer, an organic piezoelectric material, or an organic non-piezoelectric material having a flexible characteristic compared to the inorganic material portion of the first portion 511a1. For example, the second portion 511a2 may be expressed as a flexible adhesive portion, an expandable portion, a bending portion, a damping portion, or a soft portion, but the embodiments of the present specification are not limited thereto.

[0197] The vibration layer 511a according to the embodiment of the present specification may be a single thin film or a single thin film type by arranging (or connecting) a plurality of first portions 511a1 and a second portion 511a2 on the same plane. For example, the vibration layer 511a may have a structure in which a plurality of first portions 511a1 are connected to one side. For example, the plurality of first portions 511a1 may have a structure in which they are connected over the entire vibration layer 511a. For example, the plurality of first portions 511a1 may have a connected structure over the entire vibration layer 511a. For example, the vibration layer 511a may vibrate in the vertical direction by the first portion 511a1 having vibration characteristics, and may be bent into a curved shape by the second portion 511a2 having flexibility. In the vibration layer 511a according to the embodiment of the present specification, the size of the first portion 511a1 and the size of the second portion 511a2 may be set according to the piezoelectric characteristics and flexibility required for the vibration layer 511a or the vibration generator 510. As an example of the present specification, in the case of vibration layer 511a requiring piezoelectric characteristics rather than flexibility, the size of first portion 511a1 may be configured to be larger than the size of second portion 511a2. As another example of the present specification, in the case of vibration layer 511a requiring flexibility rather than piezoelectric characteristics, the size of second portion 511a2 may be configured to be larger than the size of first portion 511a1. Therefore, since the size of vibration layer 511a can be adjusted according to the required characteristics, there is an advantage that design of vibration layer 511a is easy.

[0198] The first electrode layer 511b may be disposed on the first surface (or upper surface) of the vibration layer 511a. The first electrode layer 511b may be commonly disposed on or coupled to the first surfaces of each of the plurality of first portions 511a1 and each of the plurality of second portions 511a2, and may be electrically coupled to the first surfaces of each of the plurality of first portions 511a1. For example, the first electrode layer 511b may have a single electrode (or one electrode) shape disposed over the entire first surface of the vibration layer 511a. For example, the first electrode layer 511b may have the same or substantially the same shape as the vibration layer 511a, but the examples of the present specification are not limited thereto.

[0199] The second electrode layer 511c may be disposed on a second surface (or back surface) different from (or opposite to) the first surface of the vibration layer 511a. The second electrode layer 511c may be commonly disposed or coupled to the second surface of each of the plurality of first portions 511a1 and the second surface of each of the plurality of second portions 511a2. For example, the second electrode layer 511c may have a single electrode (or one electrode) shape disposed over the entire second surface of the vibration layer 511a. For example, the second electrode layer 511c may have the same shape as the vibration layer 511a, although examples of the present specification are not limited thereto.

[0200] One or more of the first electrode layer 511b and the second electrode layer 511c according to an 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 ITO (indium tin oxide) or IZO (indium zinc oxide), and the embodiment of the present specification is not limited thereto. The opaque conductive material may include aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), magnesium (Mg), or the like, or may be made of an alloy thereof, and the embodiment of the present specification is not limited thereto.

[0201] The vibration layer 511a may be polarized (or poling) by a constant voltage applied to the first electrode layer 511b and the second electrode layer 511c in a constant temperature atmosphere or a temperature atmosphere that changes from high temperature to room temperature, but the embodiments of the present specification are not limited thereto. For example, the vibration layer 511a may vibrate by alternately repeating contraction and / or expansion due to an inverse piezoelectric effect caused by an acoustic signal (or a voice signal or a drive signal) applied from the outside to the first electrode layer 511b and the second electrode layer 511c. For example, the vibration layer 511a may vibrate by vertical vibration and planar vibration due to an acoustic signal applied to the first electrode layer 511b and the second electrode layer 511c. The vibration layer 511a may increase the displacement of the vibration member by contracting and / or expanding in the planar direction, thereby further improving the vibration of the vibration member.

[0202] The vibration generator 510 according to the first embodiment of the present specification may further include a first cover member 512 and a second cover member 513.

[0203] The first cover member 512 may be disposed on a first surface of the vibration portion 511. For example, the first cover member 512 may be configured to cover the first electrode layer 511b. Thus, the first cover member 512 can protect the first electrode layer 511b.

[0204] The second cover member 513 may be disposed on a second surface of the vibration portion 511. For example, the second cover member 513 may be configured to cover the second electrode layer 511c. Thus, the second cover member 513 can protect the second electrode layer 511c.

[0205] Each of the first cover member 512 and the second cover member 513 according to an embodiment of the present specification may include one or more materials selected from the group consisting of plastic, fiber, cloth, paper, leather, rubber, and wood, and the embodiment of the present specification is not limited thereto. For example, each of the first cover member 512 and the second cover member 513 may include the same or different materials. For example, each of the first cover member 512 and the second cover member 513 may be a polyimide film or a polyethylene terephthalate film, and the embodiment of the present specification is not limited thereto.

[0206] The first cover member 512 according to an embodiment of the present specification may be connected or bonded to the first electrode layer 511b via the first adhesive layer 514. For example, the first cover member 512 may be connected or bonded to the first electrode layer 511b by a film lamination process using the first adhesive layer 514 as an intermediate.

[0207] The second cover member 513 according to an embodiment of the present specification may be connected or bonded to the second electrode layer 511c via the second adhesive layer 515. For example, the second cover member 513 may be connected or bonded to the second electrode layer 511c by a film lamination process using the second adhesive layer 515 as an intermediate. For example, the vibration generator 510 may be realized by one film using the first cover member 512 and the second cover member 513.

[0208] The first adhesive layer 514 may be disposed between the first electrode layer 511b and the first cover member 512. The second adhesive layer 515 may be disposed between the second electrode layer 511c and the second cover member 513. For example, the first adhesive layer 514 and the second adhesive layer 515 may be configured between the first cover member 512 and the second cover member 513 to completely surround the vibration layer 511a and the first electrode layer 511b and the second electrode layer 511c. For example, the vibration layer 511a and the first electrode layer 511b and the second electrode layer 511c may be embedded or built-in between the first adhesive layer 514 and the second adhesive layer 515.

[0209] Each of the first adhesive layer 514 and the second adhesive layer 515 according to the embodiment of the present specification may include an electrically insulating material that is compressible and recoverable while having adhesiveness. For example, each of the first adhesive layer 514 and the second adhesive layer 515 may include an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin, but the embodiment of the present specification is not limited thereto.

[0210] According to one embodiment of the present specification, either the first cover member 512 or the second cover member 513 may be connected to a plate 530 via a first connecting member 520, or may be connected or attached to the curved portion 315 of the support portion 300 via the plate 530 and a second connecting member 540, as shown in Figures 3 to 7.

[0211] The vibration generator 510 according to one embodiment of the present specification may further include a first power supply line (PL1) arranged on the first cover member 512, a second power supply line (PL2) arranged on the second cover member 513, and a pad portion 516 electrically connected to the first power supply line (PL1) and the second power supply line (PL2).

[0212] The first power supply line (PL1) may be disposed between the first electrode layer 511b and the first cover member 512 and electrically connected to the first electrode layer 511b. The first power supply line (PL1) may extend long along the second direction (Y) and be electrically connected to a central portion of the first electrode layer 511b. As an embodiment of the present specification, the first power supply line (PL1) may be electrically connected to the first electrode layer 511b via an anisotropic conductive film. As another embodiment of the present specification, the first power supply line (PL1) may be electrically connected to the first electrode layer 511b via a conductive material (or particles) contained in the first adhesive layer 514.

[0213] The second power supply line (PL2) may be disposed between the second electrode layer 511c and the second cover member 513 and electrically connected to the second electrode layer 511c. The second power supply line (PL2) may extend long along the second direction (Y) and be electrically connected to a central portion of the second electrode layer 511c. As an embodiment of the present specification, the second power supply line (PL2) may be electrically connected to the second electrode layer 511c via an anisotropic conductive film. As another embodiment of the present specification, the second power supply line (PL2) may be electrically connected to the second electrode layer 511c via a conductive material (or particles) contained in the second adhesive layer 515.

[0214] According to an embodiment of the present specification, the first power supply line (PL1) may be arranged so as not to overlap with the second power supply line (PL2). When the first power supply line (PL1) is arranged so as not to overlap with the second power supply line (PL2), a problem of a short circuit between the first power supply line (PL1) and the second power supply line (PL2) may be improved.

[0215] The pad portion 516 may be configured on an edge portion on one side of either the first cover member 512 or the second cover member 513 so as to be electrically connected to one side (or one end) of each of the first power supply line (PL1) and the second power supply line (PL2).

[0216] The pad section 516 according to one embodiment of the present specification may include a first pad electrode electrically connected to one end of the first power supply line (PL1) and a second pad electrode electrically connected to one end of the second power supply line (PL2).

[0217] The first pad electrode may be disposed on an edge portion on one side of either the first cover member 512 or the second cover member 513, and may be connected to one end of the first power supply line (PL1). For example, the first pad electrode may pass through either the first cover member 512 or the second cover member 513 and be electrically connected to one end of the first power supply line (PL1).

[0218] The second pad electrode may be arranged side by side with the first pad electrode and connected to one end of the second power supply line (PL2). For example, the second pad electrode may pass through either the first cover member 512 or the second cover member 513 and be electrically connected to one end of the second power supply line (PL2).

[0219] According to an embodiment of the present disclosure, each of the first power supply line (PL1), the second power supply line (PL2), and the pad portion 516 may be configured to be transparent, semi-transparent, or opaque.

[0220] The pad portion 516 according to an embodiment of the present disclosure may be electrically connected to a signal cable 517 .

[0221] The signal cable 517 is electrically connected to the pad section 516 arranged on the vibration generator 510, and can supply a vibration drive signal (or an audio signal or a voice signal) provided from the sound processing circuit to the vibration generator 510. The signal cable 517 according to an embodiment of the present specification may include a first terminal electrically connected to a first pad electrode of the pad section 516, and a second terminal electrically connected to a second pad electrode of the pad section 516. For example, the signal cable 517 may be composed of a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multilayer printed circuit, or a flexible multilayer printed circuit board, but the embodiment of the present specification is not limited thereto.

[0222] The sound processing circuit can generate an AC vibration drive signal including a first vibration drive signal and a second vibration drive signal based on sound data supplied from an external sound data generating circuit. The first vibration drive signal can be either a positive polarity (+) vibration drive signal or a negative polarity (-) vibration drive signal, and the second vibration drive signal can be either a positive polarity (+) vibration drive signal or a negative polarity (-) vibration drive signal. For example, the first vibration drive signal can be supplied to the first electrode layer 511b via a first terminal of the signal cable 517, a first pad electrode of the pad section 516, and a first power supply line (PL1). The second vibration drive signal can be supplied to the second electrode layer 511c via a second terminal of the signal cable 517, a second pad electrode of the pad section 516, and a second power supply line (PL2).

[0223] According to one embodiment of the present disclosure, the signal cable 517 may be configured to be transparent, translucent, or opaque.

[0224] The vibration generator 510 according to another embodiment of the present specification may be realized as a thin film or a thin film type by alternately and repeatedly connecting a first portion 511a1 having a piezoelectric characteristic and a second portion 511a2 having flexibility. As a result, the vibration generator 510 may be bent into a shape corresponding to the shape of the curved surface portion of the support portion or the vibration member. For example, when the vibration generator 510 is connected or coupled to a vibration member including various curved surfaces via a connecting member, it may be bent into a curved shape along the shape of the curved surface portion of the vibration member, and reliability such as damage or breakage may not be reduced even if it is bent into a curved shape. In addition, the vibration generator 510 according to another embodiment of the present specification may have an increased vibration width (or displacement width) due to the flexible second portion 511a2, thereby improving the acoustic characteristics and / or sound pressure characteristics in the low frequency range generated by the vibration of the vibration member.

[0225] FIG. 13 is a perspective view showing another embodiment of the vibrating portion shown in FIG.

[0226] Referring to FIG. 13, a vibration layer 511a according to another embodiment of the present specification may include a plurality of first portions 511a1 spaced apart from each other along a first direction (X) and a second direction (Y), and a second portion 511a2 arranged between the plurality of first portions 511a1.

[0227] Each of the first portions 511a1 may be arranged to be spaced apart from each other along each of the first direction (X) and the second direction (Y). For example, each of the first portions 511a1 may be arranged in a lattice shape while having a hexahedral shape having the same size. Each of the first portions 511a1 may be made of the same or substantially the same piezoelectric material as the first portion 511a1 described with reference to Figures 10 to 12, and therefore the same reference numerals are used therefor, and a duplicated description thereof may be omitted for brevity.

[0228] The second portion 511a2 may be disposed between the first portions 511a1 along each of the first direction (X) and the second direction (Y). The second portion 511a2 may be connected or bonded to the adjacent first portions 511a1 by filling the gap between two adjacent first portions 511a1 or by surrounding each of the first portions 511a1. According to an embodiment of the present specification, the width (W4) of the second portion 511a2 disposed between two adjacent first portions 511a1 along the first direction (X) may be the same as or different from the width (W3) of the first portion 511a1, and the width (W4) of the second portion 511a2 disposed between two adjacent first portions 511a1 along the second direction (Y) may be the same as or different from the width (W3) of the first portion 511a1. The second portions 511a2 may be made of the same or substantially the same organic material as the second portions 511a2 described with reference to Figures 10 to 12, and therefore the same reference numerals may be used therefor, and duplicate descriptions thereof may be omitted for brevity.

[0229] The vibration layer 511a according to another embodiment of the present specification may have a resonant frequency of 30 MHz or less by including a 1-3 composite structure having a piezoelectric characteristic of a 1-3 vibration mode, but the embodiment of the present specification is not limited thereto. For example, the resonant frequency of the vibration layer 511a may be changed based on at least one of the shape, length, and thickness.

[0230] FIG. 14 is a perspective view showing another embodiment of the vibrating portion shown in FIG.

[0231] Referring to FIG. 14, a vibration layer 511a according to another embodiment of the present specification may include a plurality of first portions 511a1 spaced apart from each other along a first direction (X) and a second direction (Y), and a second portion 511a2 arranged between the plurality of first portions 511a1.

[0232] Each of the first portions 511a1 may have a circular planar structure. For example, each of the first portions 511a1 may have a disk shape, but the embodiments of the present specification are not limited thereto. For example, each of the first portions 511a1 may have a dot shape including an elliptical shape, a polygonal shape, or a doughnut shape. Each of the first portions 511a1 may be made of the same or substantially the same piezoelectric material as the first portion 511a1 described with reference to FIGS. 10 to 12, and therefore the same reference numerals are used therefor, and a duplicated description thereof may be omitted for brevity.

[0233] The second portion 511a2 may be disposed between the first portions 511a1 along each of the first direction (X) and the second direction (Y). The second portion 511a2 may be connected or bonded to each side of the first portions 511a1 by being configured to surround each of the first portions 511a1. The first portions 511a1 and the second portions 511a2 may be disposed (or arranged) side by side on the same plane (or the same layer). For example, the second portion 511a2 may be made of the same or substantially the same organic material as the second portion 511a2 described with reference to FIGS. 10 to 12, and therefore the same reference numerals are given thereto, and a duplicated description thereof may be omitted for brevity.

[0234] FIG. 15 is a perspective view showing another embodiment of the vibrating section shown in FIG.

[0235] Referring to FIG. 15, a vibration layer 511a according to another embodiment of the present specification may include a plurality of first portions 511a1 spaced apart from each other along a first direction (X) and a second direction (Y), and a second portion 511a2 arranged between the plurality of first portions 511a1.

[0236] Each of the first portions 511a1 may have a triangular planar structure. For example, each of the first portions 511a1 may have a triangular plate shape. Each of the first portions 511a1 may be made of the same or substantially the same piezoelectric material as the first portion 511a1 described with reference to FIGS. 10 to 12, and therefore the same reference numerals are used therefor, and redundant description thereof may be omitted for brevity.

[0237] According to an embodiment of the present specification, four adjacent first portions 511a1 among the plurality of first portions 511a1 may be adjacently disposed to form a square shape (or a regular square shape). Each vertex of the four adjacent first portions 511a1 forming the square shape may be adjacently disposed to the center (or the middle) of the square shape.

[0238] The second portion 511a2 may be disposed between the first portions 511a1 along each of the first direction (X) and the second direction (Y). The second portion 511a2 may be connected or bonded to each side of the first portions 511a1 by being configured to surround each of the first portions 511a1. The first portions 511a1 and the second portions 511a2 may be disposed (or arranged) side by side on the same plane (or the same layer). For example, the second portion 511a2 may be made of the same or substantially the same organic material as the second portion 511a2 described with reference to FIGS. 10 to 12, and therefore the same reference numerals are given thereto, and a duplicated description thereof may be omitted for brevity.

[0239] According to another embodiment of the present specification, adjacent 2N (N is a natural number equal to or greater than 2) first portions 511a1 among the plurality of first portions 511a1 having a triangular shape may be arranged adjacent to each other to form a 2N-sided polygon. For example, adjacent six first portions 511a1 among the plurality of first portions 511a1 may be arranged adjacent to each other to form a hexagonal shape (or a regular hexagonal shape). The vertices of the six adjacent first portions 511a1 forming the hexagonal shape may be arranged adjacent to the center (or the middle) of the hexagonal shape. The second portion 511a2 may be connected or bonded to the side surfaces of each of the plurality of first portions 511a1 by being configured to surround each of the plurality of first portions 511a1. Each of the plurality of first portions 511a1 and the second portion 511a2 may be arranged (or arrayed) next to each other on the same plane (or the same layer).

[0240] Fig. 16 is a diagram showing a vibration generator according to another embodiment of the present specification, and Fig. 17 is a cross-sectional view taken along line III-III' shown in Fig. 16. Figs. 16 and 17 are diagrams showing another embodiment of the vibration generator described with reference to Figs. 1 to 9.

[0241] 16 and 17, a vibration generator 510 according to another embodiment of the present specification may include first and second vibration units 511-1, 511-2.

[0242] The first and second vibrating parts 511-1, 511-2 may be arranged electrically separated from each other along the first direction (X). The first and second vibrating parts 511-1, 511-2 may vibrate by alternately or repeatedly contracting and / or expanding due to the piezoelectric effect. For example, the first and second vibrating parts 511-1, 511-2 may be arranged or tiled at a constant interval (D1) along the first direction (X). As a result, the vibration generator 510 in which the first and second vibrating parts 511-1, 511-2 are tiled may be a vibration array, a vibration array section, a vibration module array section, a vibration array structure, a tiling vibration array, a tiling vibration array module, or a tiling vibration film, but the embodiments of the present specification are not limited thereto.

[0243] Each of the first and second vibration parts 511-1, 511-2 according to the embodiment of the present specification may have a rectangular shape. For example, each of the first and second vibration parts 511-1, 511-2 may have a rectangular shape with a width of 5 cm or more. For example, each of the first and second vibration parts 511-1, 511-2 may have a size of 5 cm x 5 cm or more.

[0244] Each of the first and second vibrating parts 511-1, 511-2 is arranged on the same plane or tiled, so that the vibration generator 510 can be made large in area by tiling the first and second vibrating parts 511-1, 511-2, which have relatively small sizes.

[0245] The first and second vibration units 511-1, 511-2 may be arranged at a fixed interval (D1) or tiled to be realized as one vibration device (or a single vibration device) that is not driven independently but is driven in the form of one complete unit. According to one embodiment of the present specification, the first separation distance (D1) between the first and second vibration units 511-1, 511-2 based on the first direction (X) may be 0.1 mm or more and less than 3 cm, but the embodiment of the present specification is not limited thereto.

[0246] According to an embodiment of the present specification, the first and second vibrating units 511-1, 511-2 may be arranged or tiled to have a first separation distance (or interval) (D1) of 0.1 mm or more and less than 3 cm, so that they can be driven as one vibrating device, and the reproduction band and sound pressure characteristics of the sound generated in conjunction with the single-body vibration of the first and second vibrating units 511-1, 511-2 may be increased. For example, in order to increase the reproduction band of the sound generated in conjunction with the single-body vibration of the first and second vibrating units 511-1, 511-2 and to increase the sound pressure characteristics of low-frequency sound, for example, at 500 Hz or less, the first and second vibrating units 511-1, 511-2 may be arranged with a first separation distance (or interval) (D1) of 0.1 mm or more and less than 5 mm.

[0247] According to one embodiment of the present specification, when the first and second vibrating parts 511-1, 511-2 are arranged with a first separation distance (or interval) (D1) of less than 0.1 mm, or without a first separation distance (D1), the reliability of the first and second vibrating parts 511-1, 511-2 or the vibration generator 510 may be reduced due to cracks or damage caused by physical contact between each other when the first and second vibrating parts 511-1, 511-2 vibrate, respectively.

[0248] According to an embodiment of the present specification, when the first and second vibration units 511-1 and 511-2 are arranged at a first separation distance (D1) of 3 cm or more, the first and second vibration units 511-1 and 511-2 may not be driven as one vibration device due to the independent vibration of each of the first and second vibration units 511-1 and 511-2. This may reduce the reproduction band and sound pressure characteristics of the sound generated by the vibration of the first and second vibration units 511-1 and 511-2. For example, when the first and second vibration units 511-1 and 511-2 are arranged at a first separation distance (D1) of 3 cm or more, the acoustic characteristics and sound pressure characteristics in the low frequency band, for example, below 500 Hz, may be reduced.

[0249] According to one embodiment of the present specification, when the first and second vibration parts 511-1, 511-2 are arranged at a first separation distance (D1) of 5 mm, the first and second vibration parts 511-1, 511-2 are not driven as a single vibration device, so that the acoustic characteristics and sound pressure characteristics may be reduced in the low frequency range, for example, below 200 Hz.

[0250] According to another embodiment of the present specification, when the first and second vibrating parts 511-1, 511-2 are arranged at a first separation distance (D1) of 1 mm, the first and second vibrating parts 511-1, 511-2 are vibrated as one vibrating device, so that the reproduction band of the sound is increased and the sound pressure characteristics of the low frequency band, for example, at 500 Hz or less, can be increased. For example, when the first and second vibrating parts 511-1, 511-2 are arranged at a first separation distance (D1) of 1 mm, the vibration generator 510 can be realized as a vibrating body with a large area by optimizing the separation distance between the first and second vibrating parts 511-1, 511-2. As a result, the first and second vibrating parts 511-1, 511-2 can be driven as a large-area vibrating body by single-body vibration, and therefore, the acoustic characteristics and sound pressure characteristics of the sound reproduction band and low-frequency band generated in conjunction with the large-area vibration of the vibration generator 510 can be increased or improved.

[0251] Therefore, in order to realize the single body vibration (or one vibration device) of the first and second vibrating parts 511-1, 511-2, the first separation distance (D1) between the first and second vibrating parts 511-1, 511-2 may be set to 0.1 mm or more and less than 3 cm. Also, in order to realize the single body vibration (or one vibration device) of the first and second vibrating parts 511-1, 511-2 and increase the sound pressure characteristics of the sound in the low frequency range, the first separation distance (D1) between the first and second vibrating parts 511-1, 511-2 may be set to 0.1 mm or more and less than 5 mm.

[0252] Each of the first and second vibrating sections 511-1, 511-2 according to an embodiment of the present specification may include a vibrating layer 511a, a first electrode layer 511b, and a second electrode layer 511c.

[0253] The vibration layer 511a of each of the first and second vibration units 511-1 and 511-2 may include a piezoelectric material (or an electroactive material) having a piezoelectric effect. For example, the vibration layer 511a of each of the first and second vibration units 511-1 and 511-2 may be configured the same or substantially similar to any of the vibration layers 511a described with reference to Figs. 12 to 15, and therefore the same reference numerals may be used therefor, and a duplicate description thereof may be omitted for brevity.

[0254] According to one embodiment of the present specification, each of the first and second vibrating parts 511-1, 511-2 may include any one of the vibrating parts 511 described with reference to Figures 12 to 15, or may include vibrating parts 511 that are different from each other.

[0255] The first electrode layer 511b may be disposed on a first surface of the vibration layer 511a and electrically connected to the first surface of the vibration layer 511a. The first electrode layer 511b may be the same or substantially the same as the first electrode layer 511b described with reference to Figs. 11 and 12, and therefore may be given the same reference numerals and a duplicated description thereof may be omitted for brevity.

[0256] The second electrode layer 511c may be disposed on a second surface of the vibration layer 511a and electrically connected to the second surface of the vibration layer 511a. The second electrode layer 511c may be the same or substantially the same as the second electrode layer 511c described with reference to Figures 11 and 12, and therefore may be given the same reference numerals and a duplicated description thereof may be omitted for brevity.

[0257] The vibration generator 510 according to another embodiment of the present disclosure may further include a first cover member 512 and a second cover member 513.

[0258] The first cover member 512 may be disposed on the first surface of the vibration generator 510. For example, the first cover member 512 may be commonly connected to the first surfaces of the first and second vibrating parts 511-1 and 511-2 or commonly support the first surfaces of the first and second vibrating parts 511-1 and 511-2 by covering the first electrode layers 511b disposed on the first surfaces of the first and second vibrating parts 511-1 and 511-2. This allows the first cover member 512 to protect the first surfaces or the first electrode layers 511b of the first and second vibrating parts 511-1 and 511-2.

[0259] The second cover member 513 may be disposed on the second surface of the vibration generator 510. For example, the second cover member 513 may be commonly connected to the second surfaces of the first and second vibrating parts 511-1 and 511-2 or commonly support the second surfaces of the first and second vibrating parts 511-1 and 511-2 by covering the second electrode layers 511c disposed on the second surfaces of the first and second vibrating parts 511-1 and 511-2. This allows the second cover member 513 to protect the second surfaces or the second electrode layers 511c of the first and second vibrating parts 511-1 and 511-2.

[0260] Each of the first cover member 512 and the second cover member 513 according to an embodiment of the present specification may include one or more of plastic, fiber, leather, wood, cloth, rubber, and paper, but the embodiment of the present specification is not limited thereto. For example, each of the first cover member 512 and the second cover member 513 may include the same or different materials. For example, each of the first cover member 512 and the second cover member 513 may be a polyimide film or a polyethylene terephthalate film, but the embodiment of the present specification is not limited thereto.

[0261] The first cover member 512 according to an embodiment of the present specification may be disposed on the first surfaces of the first and second vibrating parts 511-1, 511-2 via the first adhesive layer 514. For example, the first cover member 512 may be disposed directly on the first surfaces of the first and second vibrating parts 511-1, 511-2 by a film lamination process using the first adhesive layer 514 as an intermediary. Thus, each of the first and second vibrating parts 511-1, 511-2 may be integrated (or disposed) with or tiled to the first cover member 512 so as to have a first separation distance (D1).

[0262] The second cover member 513 according to an embodiment of the present specification may be disposed on the second surfaces of the first and second vibration units 511-1 and 511-2 via the second adhesive layer 515. For example, the second cover member 513 may be disposed directly on the second surfaces of the first and second vibration units 511-1 and 511-2 by a film lamination process using the second adhesive layer 515 as an intermediary. Thus, each of the first and second vibration units 511-1 and 511-2 may be integrated (or disposed) with or tiled to the second cover member 513 so as to have a first separation distance (D1). For example, the vibration generator 510 may be realized by one film using the first cover member 512 and the second cover member 513.

[0263] The first adhesive layer 514 may be disposed between the first and second vibrating parts 511-1, 511-2 and disposed on the first surfaces of the first and second vibrating parts 511-1, 511-2. For example, the first adhesive layer 514 may be formed on the rear surface (or inner surface) of the first cover member 512 facing the first surfaces of the first and second vibrating parts 511-1, 511-2, filled between the first and second vibrating parts 511-1, 511-2, and filled between the first cover member 512 and the first surfaces of the first and second vibrating parts 511-1, 511-2.

[0264] The second adhesive layer 515 may be disposed between the first and second vibrating parts 511-1, 511-2 and disposed on the second surfaces of the first and second vibrating parts 511-1, 511-2. For example, the second adhesive layer 515 may be formed on the front surface (or inner surface) of the second cover member 513 facing the second surfaces of the first and second vibrating parts 511-1, 511-2, filled between the first and second vibrating parts 511-1, 511-2, and filled between the second cover member 513 and the second surfaces of the first and second vibrating parts 511-1, 511-2.

[0265] The first and second adhesive layers 514, 515 may be interconnected or bonded between the first and second vibrating parts 511-1, 511-2. Thereby, each of the first and second vibrating parts 511-1, 511-2 may be surrounded by the first and second adhesive layers 514, 515. For example, the first and second adhesive layers 514, 515 may be configured between the first cover member 512 and the second cover member 513 so as to completely surround each of the first and second vibrating parts 511-1, 511-2. For example, each of the first and second vibrating parts 511-1, 511-2 may be embedded or built-in between the first adhesive layer 514 and the second adhesive layer 515.

[0266] According to an embodiment of the present specification, each of the first and second adhesive layers 514, 515 may include an electrically insulating material that is compressible and resilient while having adhesive properties. For example, each of the first and second adhesive layers 514, 515 may include an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin, but the embodiment of the present specification is not limited thereto. For example, each of the first and second adhesive layers 514, 515 may be configured to be transparent, translucent, or opaque.

[0267] A vibration generator 510 according to another embodiment of the present specification may further include a first power supply line (PL1) arranged on the first cover member 512, a second power supply line (PL2) arranged on the second cover member 513, and a pad portion 518 electrically connected to the first power supply line (PL1) and the second power supply line (PL2).

[0268] The first power supply line (PL1) may be disposed on a rear surface of the first cover member 512 facing the first surfaces of the first and second vibrating parts 511-1, 511-2. The first power supply line (PL1) may be coupled or electrically coupled to the first electrode layers 511b of the first and second vibrating parts 511-1, 511-2. For example, the first power supply line (PL1) may be electrically coupled to the first electrode layers 511b of the first and second vibrating parts 511-1, 511-2 via an anisotropic conductive film or a conductive material (or particles) contained in the first adhesive layer 514.

[0269] The first power supply line (PL1) according to an embodiment of the present specification may include first and second upper power lines (PL11, PL12) arranged along the second direction (Y). For example, the first upper power line (PL11) may be connected to or directly electrically connected to the first electrode layer 511b of the first vibrating part 511-1. The second upper power line (PL12) may be connected to or directly electrically connected to the first electrode layer 511b of the second vibrating part 511-2.

[0270] The second power supply line (PL2) may be disposed on a front surface of the second cover member 513 facing the second surfaces of the first and second vibrating parts 511-1, 511-2. The second power supply line (PL2) may be coupled or electrically coupled to the second electrode layers 511c of the first and second vibrating parts 511-1, 511-2. For example, the second power supply line (PL2) may be electrically coupled to the second electrode layers 511c of the first and second vibrating parts 511-1, 511-2 via an anisotropic conductive film or a conductive material (or particles) contained in the second adhesive layer 515.

[0271] The second power supply line (PL2) according to an embodiment of the present specification may include first and second lower power lines (PL21, PL22) arranged along the second direction (Y). For example, the first lower power line (PL21) may be connected to the second electrode layer 511c of the first vibrating part 511-1 or may be directly and electrically connected thereto. For example, the first lower power line (PL21) may be arranged so as not to overlap with the first upper power line (PL11). When the first lower power line (PL21) is arranged so as not to overlap with the first upper power line (PL11), the problem of a short circuit between the first power supply line (PL1) and the second power supply line (PL2) may be improved. The second lower power line (PL22) may be connected to the second electrode layer 511c of the second vibrating part 511-2 or may be directly and electrically connected thereto. For example, the second lower power line (PL22) may be arranged so as not to overlap with the second upper power line (PL12). When the second lower power line (PL22) is arranged so as not to overlap with the second upper power line (PL12), the problem of a short circuit between the first power supply line (PL1) and the second power supply line (PL2) may be improved.

[0272] The pad portion 518 may be configured on an edge portion of one side of either the first cover member 512 or the second cover member 513 so as to be electrically connected to one side (or one end) of each of the first power supply line (PL1) and the second power supply line (PL2).

[0273] The pad section 518 according to one embodiment of the present specification may include a first pad electrode electrically connected to one end of the first power supply line (PL1) and a second pad electrode electrically connected to one end of the second power supply line (PL2).

[0274] The first pad electrode may be commonly connected to one end of each of the first and second upper power lines (PL11, PL12) of the first power supply line (PL1). For example, one end of each of the first and second upper power lines (PL11, PL12) may branch off from the first pad electrode. The second pad electrode may be commonly connected to one end of each of the first and second lower power lines (PL21, PL22) of the second power supply line (PL2). For example, one end of each of the first and second lower power lines (PL21, PL22) may branch off from the second pad electrode.

[0275] The vibration generator 510 according to other embodiments of the present disclosure may further include a signal cable 519.

[0276] The signal cable 519 is electrically connected to the pad portion 518 arranged on the vibration generator 510, and can supply a vibration drive signal (or an acoustic signal) provided from the acoustic processing circuit to the vibration generator 510. The signal cable 519 according to an embodiment of the present specification may include a first terminal electrically connected to a first pad electrode of the pad portion 518 and a second terminal electrically connected to a second pad electrode of the pad portion 518. For example, the signal cable 519 may be composed of a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board, a flexible multilayer printed circuit, or a flexible multilayer printed circuit board, but the embodiment of the present specification is not limited thereto.

[0277] The sound processing circuit can generate an AC vibration drive signal including a first vibration drive signal and a second vibration drive signal based on the sound data. The first vibration drive signal can be either a positive polarity (+) vibration drive signal or a negative polarity (-) vibration drive signal, and the second vibration drive signal can be either a positive polarity (+) vibration drive signal or a negative polarity (-) vibration drive signal. For example, the first vibration drive signal can be supplied to the first electrode layer 511b of each of the first and second vibration units 511-1 and 511-2 via a first terminal of the signal cable 519, a first pad electrode of the pad unit 518, and a first power supply line (PL1). The second vibration drive signal can be supplied to the second electrode layer 511c of each of the first and second vibration units 511-1 and 511-2 via a second terminal of the signal cable 519, a second pad electrode of the pad unit 518, and a second power supply line (PL2).

[0278] The vibration generator 510 according to another embodiment of the present specification may be formed as a thin film or a thin film type in the same manner as the vibration generator 510 described with reference to Figs. 10 to 15, and thus can be bent into a shape corresponding to the shape of the vibrating member or the vibrating object, and can easily vibrate the vibrating member including various curved portions, and can improve the acoustic characteristics and / or sound pressure characteristics in the low frequency range generated by the vibration of the vibrating member. The vibration generator 510 according to another embodiment of the present specification includes first and second vibrating units 511-1, 511-2 arranged (or tiled) at a first separation distance (D1) so as to be realized as one single vibrating body without being driven independently, and can be driven as a large-area vibrating body by the single body vibration of the first and second vibration generating units 511-1, 511-2.

[0279] Fig. 18 is a diagram showing a vibration generator according to another embodiment of the present specification. Fig. 18 shows the vibration generator shown in Figs. 16 and 17 configured with four vibration units. Therefore, in the following, the same or similar components other than the four vibration units and the components related thereto are given the same reference numerals in the drawings, and duplicated descriptions therefor may be omitted or simplified. The cross section of line III-III' shown in Fig. 18 is shown in Fig. 17.

[0280] 17 and 18, a vibration generator 510 according to another embodiment of the present specification may include a plurality of vibration units 511-1, 511-2, 511-3, and 511-4.

[0281] Each of the multiple vibration parts 511-1, 511-2, 511-3, and 511-4 may be arranged electrically separated from each other along each of the first direction (X) and the second direction (Y). For example, each of the multiple vibration parts 511-1, 511-2, 511-3, and 511-4 may be arranged or tiled in the form of i×j on the same plane, so that the vibration generator 510 may have a large area by tiling the multiple vibration parts 511-1, 511-2, 511-3, and 511-4 having relatively small sizes. For example, i is the number of vibration parts arranged along the first direction (X) and may be a natural number of 2 or more, and j is the number of vibration parts arranged along the second direction (Y) and may be a natural number of 2 or more that is equal to or different from i. For example, each of the multiple vibration units 511-1, 511-2, 511-3, and 511-4 may be arranged or tiled in a 2×2 format, but the embodiments of the present specification are not limited thereto. In the following description, it is assumed that the vibration generator 510 includes the first to fourth vibration units 511-1, 511-2, 511-3, and 511-4.

[0282] According to an embodiment of the present specification, the first and second vibrating parts 511-1, 511-2 may be spaced apart from each other along the first direction (X). The third and fourth vibrating parts 511-3, 511-4 may be spaced apart from each other along the first direction (X) and from each other along the second direction (Y). The first and third vibrating parts 511-1, 511-3 may face each other and be spaced apart from each other along the second direction (Y). The second and fourth vibrating parts 511-2, 511-4 may face each other and be spaced apart from each other along the second direction (Y).

[0283] The first to fourth vibration units 511-1, 511-2, 511-3, and 511-4 may be disposed between the first cover member 512 and the second cover member 513. For example, the first cover member 512 and the second cover member 513 may each connect the first to fourth vibration units 511-1, 511-2, 511-3, and 511-4 or commonly support them, thereby driving the first to fourth vibration units 511-1, 511-2, 511-3, and 511-4 as one vibration device (or a single vibration device). For example, the first to fourth vibration units 511-1, 511-2, 511-3, and 511-4 may be driven as one vibration device (or a single vibration device) by tiling them at regular intervals (D1, D2) on the cover members 512 and 513.

[0284] According to one embodiment of the present specification, as described with reference to Figures 30 and 31, the first to fourth vibrating parts 511-1, 511-2, 511-3, 511-4 may be arranged (or tiled) at intervals (D1, D2) of 0.1 mm or more and less than 3 cm along each of the first direction (X) and second direction (Y) for complete single-body vibration or large-area vibration, and may be arranged (or tiled) at intervals (D1, D2) of 0.1 mm or more and less than 5 mm.

[0285] Each of the first to fourth vibrating sections 511-1, 511-2, 511-3, 511-4 may include a vibrating layer 511a, a first electrode layer 51b, and a second electrode layer 511c.

[0286] The vibration layers 511a of the first to fourth vibration units 511-1, 511-2, 511-3, and 511-4 may include a piezoelectric material (or an electroactive material) having a piezoelectric effect. The vibration layers 511a of the first to fourth vibration units 511-1, 511-2, 511-3, and 511-4 may be configured the same or substantially similar to any of the vibration layers 511a described with reference to Figures 12 to 15, and therefore may be given the same reference numerals and a duplicated description thereof may be omitted for brevity.

[0287] According to one embodiment of the present specification, each of the first to fourth vibrating sections 511-1, 511-2, 511-3, and 511-4 may include one of the vibrating layers 511a described with reference to Figures 26 to 29, or may include different vibrating layers 511a. According to another embodiment of the present specification, one or more of the first to fourth vibrating sections 511-1, 511-2, 511-3, and 511-4 may include different vibrating layers 511a of the vibrating layers 511a described with reference to Figures 12 to 15.

[0288] The first electrode layer 511b may be disposed on a first surface of the corresponding vibration layer 511a and electrically connected to the first surface of the vibration layer 511a. The first electrode layer 511b may be the same or substantially the same as the first electrode layer 511b described with reference to Figs. 11 and 12, and therefore may be given the same reference numerals and a duplicated description thereof may be omitted for brevity.

[0289] The second electrode layer 511c may be disposed on a second surface of the vibration layer 511a and electrically connected to the second surface of the vibration layer 511a. The second electrode layer 511c may be the same or substantially the same as the second electrode layer 511c described with reference to Figures 11 and 12, and therefore may be given the same reference numerals and a duplicated description thereof may be omitted for brevity.

[0290] According to an embodiment of the present specification, the first and second adhesive layers 514, 515 may be connected or bonded to each other between the first to fourth vibration parts 511-1, 511-2, 511-3, and 511-4. As a result, each of the first to fourth vibration parts 511-1, 511-2, 511-3, and 511-4 may be surrounded by the first and second adhesive layers 514, 515. For example, the first and second adhesive layers 514, 515 may be configured between the first cover member 512 and the second cover member 513 so as to completely surround each of the first to fourth vibration parts 511-1, 511-2, 511-3, and 511-4. For example, each of the first to fourth vibration parts 511-1, 511-2, 511-3, and 511-4 may be embedded or built in between the first adhesive layer 514 and the second adhesive layer 515.

[0291] The vibration generator 510 according to another embodiment of the present specification may further include a first power supply line (PL1), a second power supply line (PL2), and a pad portion 518.

[0292] The first power supply line (PL1) and the second power supply line (PL2) are identical or substantially the same as the first power supply line (PL1) and the second power supply line (PL2) described with reference to Figures 16 and 17, except for the electrical connection structure with the first to fourth vibration parts 511-1, 511-2, 511-3, and 511-4. Therefore, in the following explanation, only the electrical connection structure between the first power supply line (PL1) and the second power supply line (PL2) and the first to fourth vibration parts 511-1, 511-2, 511-3, and 511-4 will be briefly explained.

[0293] The first power supply line (PL1) according to an embodiment of the present specification may include first and second upper power supply lines (PL11, PL12) arranged along the second direction (Y). For example, the first upper power supply line (PL11) may be electrically connected to the first electrode layers 511b of the first and third vibration generating units 511-1, 511-3 arranged in a first row parallel to the second direction (Y) among the first to fourth vibration units 511-1, 511-2, 511-3, 511-4. The second upper power supply line (PL12) may be electrically connected to the first electrode layers 511b of the second and fourth vibration units 511-2, 511-4 arranged in a second row parallel to the second direction (Y) among the first to fourth vibration units 511-1, 511-2, 511-3, 511-4.

[0294] The second power supply line (PL2) according to an embodiment of the present specification may include first and second lower power supply lines (PL21, PL22) arranged along the second direction (Y). For example, the first lower power supply line (PL21) may be electrically connected to the second electrode layers 511c of the first and third vibration generating units 511-1, 511-3 arranged in a first row parallel to the second direction (Y) among the first to fourth vibration units 511-1, 511-2, 511-3, 511-4. The second lower power supply line (PL22) may be electrically connected to the second electrode layers 511c of the second and fourth vibration units 511-2, 511-4 arranged in a second row parallel to the second direction (Y) among the first to fourth vibration units 511-1, 511-2, 511-3, 511-4.

[0295] The pad unit 518 may be configured on one side edge portion of either the first cover member 512 or the second cover member 513 so as to be electrically connected to one side (or one end) of each of the first power supply line (PL1) and the second power supply line (PL2). The pad unit 518 is the same or substantially the same as the pad unit 518 described with reference to Figures 16 and 17, so the same reference numerals are used therefor, and a duplicated description thereof may be omitted for brevity.

[0296] The vibration generator 510 according to other embodiments of this specification has the same effect as the vibration generator 510 described with reference to Figures 16 and 17, so duplicated descriptions therefor may be omitted for the sake of brevity.

[0297] Fig. 19 is a diagram showing a vibration generator according to another embodiment of the present specification, and Fig. 20 is a cross-sectional view taken along line IV-IV' shown in Fig. 19. Figs. 19 and 20 are diagrams showing another embodiment of the vibration generator described with reference to Figs. 1 to 10.

[0298] 19 and 20, a vibration generator 510 according to another embodiment of the present specification may include a plurality of vibration generating units 510A, 510B, and an intermediate member 510m. For example, a vibration generator 510 according to another embodiment of the present specification may include a first vibration generating unit 510A, a second vibration generating unit 510B, and an intermediate member 510m between the first vibration generating unit 510A and the second vibration generating unit 510B.

[0299] The multiple vibration generating units (or the first and second vibration generating units) 510A, 510B may be stacked or laminated on each other so as to be displaced (or driven or vibrated) in the same direction to maximize the amplitude displacement of the vibration generator 510 and / or the amplitude displacement of the vibration member. One side (or end portion, or tip, or outer surface, or each corner portion) of each of the multiple vibration generating units (or the first and second vibration generating units) 510A, 510B may be aligned with or located on a virtual extension line (VL) extended along the third direction (Z). For example, the first vibration generating unit 510A may be disposed in front of or on the back of the second vibration generating unit 510B.

[0300] Each of the multiple vibration generating units (or first and second vibration generating units) 510A, 510B is any one of the vibration generators 510 described with reference to Figures 10 to 18, and therefore duplicate descriptions thereof may be omitted for the sake of brevity.

[0301] The vibration generating units 510A, 510B may be stacked or laminated on each other so that they are displaced (or driven or vibrated) in the same direction based on the polarization direction of the vibration layer 511a. For example, when the vibration layers 511a of the first and second vibration generating units 510A, 510B have the same polarization direction, the second vibration generating unit 510B may be disposed on the front or back of the first vibration generating unit 510A. For example, when the vibration layers 511a of the first and second vibration generating units 510A, 510B have opposite polarization directions, the second vibration generating unit 510B may be disposed on the front or back of the first vibration generating unit 510A in an upside-down shape.

[0302] The intermediate member 510m may be disposed or interposed between the multiple vibration generating units 510A and 510B. For example, the intermediate member 510m may be disposed between the second cover member 513 of the first vibration generating unit 510A and the first cover member 512 of the second vibration generating unit 510B. For example, the intermediate member 510m may be made of an adhesive material including an adhesive layer having a relatively strong adhesive force or bonding force to each of the first vibration generating unit 510A and the second vibration generating unit 510B stacked vertically.

[0303] The intermediate member 510m according to an embodiment of the present specification may include a foam pad, a double-sided foam pad, a double-sided tape, or an adhesive, and the embodiment of the present specification is not limited thereto. For example, the adhesive layer of the intermediate member 510m may include an epoxy, acrylic, silicone, or urethane-based material, and the embodiment of the present specification is not limited thereto. For example, the adhesive layer of the intermediate member 510m may include a urethane-based material (or material) having relatively softer properties than acrylic among acrylic and urethane. As a result, in the vibration generator 510 according to another embodiment of the present specification, vibration loss due to interference of displacement between the multiple vibration generating units 510A and 510B is minimized, or each of the multiple vibration generating units 510A and 510B may be freely displaced.

[0304] The intermediate member 510m according to other embodiments of the present specification may include one or more of a heat-curable adhesive, a photo-curable adhesive, and a heat-sealing adhesive. For example, the intermediate member 510m may include a heat-sealing adhesive. The heat-sealing adhesive may be a heat-activated type or a heat-setting type. For example, the intermediate member 510m including the heat-sealing adhesive may bond or join the two adjacent vibration generating units 510A and 510B to each other by heat and pressure. For example, the intermediate member 510m including the heat-sealing adhesive may minimize or reduce the loss of vibration of the vibration generating unit 510.

[0305] The vibration generating units 510A and 510B can be integrated into one structure (or part) by a lamination process using the intermediate member 510m. For example, the vibration generating units 510A and 510B can be integrated into one structure by a lamination process using a roller.

[0306] 21A to 21D are perspective views showing the laminated structure between the vibration layers of each of the plurality of vibration generating parts shown in FIGS.

[0307] 19 and 21A, the vibration layer 511a of each of the vibration generating units 510A, 510B may include a plurality of first portions 511a1 and a plurality of second portions 511a2 disposed between the plurality of first portions 511a1. The vibration layer 511a is the same or substantially the same as the vibration layer 511a described with reference to FIGS. 11 and 12, and therefore a duplicate description thereof may be omitted for brevity.

[0308] Among the multiple vibration generating units 510A and 510B, the first portion 511a1 of the vibration generating unit 510B arranged in the lower layer and the first portion 511a1 of the vibration generating unit 510A arranged in the upper layer may be substantially overlapped or superimposed on each other without passing each other, or may be aligned on a virtual extension line (VL) extending along the third direction (Z), or may be disposed on the virtual extension line (VL). Among the multiple vibration generating units 510A and 510B, the second portion 511a2 of the vibration generating unit 510B arranged in the lower layer and the second portion 511a2 of the vibration generating unit 510A arranged in the upper layer may be substantially overlapped or superimposed on each other without passing each other, or may be aligned on a virtual extension line (VL) extending along the third direction (Z), or may be disposed on the virtual extension line (VL). As a result, the first portions 511a1 of each of the multiple vibration generating units 510A, 510B are substantially stacked or overlapped on each other without passing each other and are displaced (or driven or vibrated) in the same direction as each other, so that the amplitude displacement of the vibration generator 510 and / or the amplitude displacement of the vibrating member can be increased or maximized by the combined vibration of each of the multiple vibration generating units 510A, 510B, thereby improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range generated by the vibration of the vibrating member.

[0309] 19 and 21B to 21D, the vibration layer 511a of each of the vibration generating units 510A and 510B may include a plurality of first portions 511a1 and a second portion 511a2 arranged to surround each of the plurality of first portions 511a1. The vibration layer 511a is the same or substantially the same as the vibration layer 511a described with reference to FIGS. 13 to 15, and therefore a duplicate description thereof may be omitted for brevity.

[0310] Among the multiple vibration generating units 510A and 510B, the first portion 511a1 of the vibration generating unit 510B arranged in the lower layer and the first portion 511a1 of the vibration generating unit 510A arranged in the upper layer may be substantially overlapped or superimposed on each other without passing each other, or may be aligned on a virtual extension line (VL) extending along the third direction (Z), or may be located on the virtual extension line (VL). Among the multiple vibration generating units 510A and 510B, the second portion 511a2 of the vibration generating unit 510B arranged in the lower layer and the second portion 511a2 of the vibration generating unit 510A arranged in the upper layer may be substantially overlapped or superimposed on each other without passing each other, or may be aligned on a virtual extension line (VL) extending along the third direction (Z), or may be located on the virtual extension line (VL). As a result, the first portions 511a1 of each of the multiple vibration generating units 510A, 510B are substantially stacked or overlapped on each other without passing each other and are displaced (or driven or vibrated) in the same direction as each other, so that the amplitude displacement of the vibration generator 510 and / or the amplitude displacement of the vibrating member can be increased or maximized by the combined vibration of each of the multiple vibration generating units 510A, 510B, thereby improving the acoustic characteristics and / or sound pressure characteristics in the low-frequency range generated by the vibration of the vibrating member.

[0311] FIG. 22 is an oblique view showing an apparatus according to another embodiment of the present specification, FIG. 23 is a cross-sectional view along line V-V' shown in FIG. 2, and FIG. 24 is an oblique view showing the back of the cover member shown in FIGS. 22 and 23.

[0312] 22 to 24, the device 3 according to the third embodiment of the present specification may be applied to an audio device, an audio output device, a sound bar, an audio system, an audio device for a transportation device, an audio output device for a transportation device, or a sound bar for a transportation device. For example, the transportation device may include one or more seats and one or more glass windows. For example, the transportation device may include a vehicle, a train, a ship, or an aircraft, and the embodiments of the present specification are not limited thereto. The device 3 according to the third embodiment of the present specification may constitute analog or digital signage such as an advertising billboard, a poster, or a guide board.

[0313] The device 3 according to the third embodiment of the present specification may include a vibrating member 600, a support portion 300, and first to n-th vibrating devices 500 (n is a natural number of 2 or more).

[0314] The vibrating member 600 may be configured to output sound by vibration of the first to nth vibrating devices 500. The vibrating member 600 may include a vibrating panel 610 and a cover member 630.

[0315] The diaphragm panel 610 can output sound by vibration of the first to nth vibrating devices 500. Thus, the diaphragm panel 610 can be a passive vibration member, a front member, a vibration target, a diaphragm, a passive vibration panel, an acoustic plate, an acoustic output member, or an acoustic output panel, but the embodiments of the present specification are not limited thereto.

[0316] The diaphragm panel 610 may be configured to be transparent, translucent, or opaque. The diaphragm panel 610 according to an embodiment of the present specification may include a metallic material having material properties suitable for outputting sound by vibration, or may include a non-metallic material (or a composite non-metallic material). The metallic material of the diaphragm panel 610 according to an embodiment of the present specification may include any one or more of stainless steel, aluminum (Al), an aluminum alloy, magnesium (Mg), a magnesium alloy, and a magnesium lithium (Mg-Li) alloy, but the embodiment of the present specification is not limited thereto. The non-metallic material (or a composite non-metallic material) of the diaphragm panel 610 may include any one or more of glass, plastic, fiber, leather, wood, cloth, rubber, paper, carbon, and mirror, but the embodiment of the present specification is not limited thereto.

[0317] The diaphragm panel 610 according to an embodiment of the present specification can realize an analog signage panel such as an advertising billboard, a poster, or a guide board. For example, when the diaphragm member 600 realizes a signage panel, the analog signage can include signage content such as text, pictures, and symbols. The signage content can be arranged on the diaphragm panel 610 so as to be visible. For example, the signage content can be directly attached to one or more of the first surface (or front surface) 600a of the diaphragm panel 610 and the second surface (or rear surface) 600b different from (or opposite to) the first surface 600a. For example, the signage content can be printed on a medium such as paper, and the medium on which the signage content is printed can be directly attached to one or more of the first surface 600a and the second surface 600b of the diaphragm panel 610. For example, when the signage content is attached to the second surface 600b of the diaphragm panel 610, the diaphragm panel 610 can be made of a transparent material.

[0318] The diaphragm panel 610 according to an embodiment of the present specification may include a plate structure having a rectangular shape. The diaphragm panel 610 may include a horizontal length parallel to a first direction (X) and a vertical length parallel to a second direction (Y). For example, the diaphragm panel 610 may include a rectangular shape in which the horizontal length is relatively longer than the vertical length, but the embodiment of the present specification is not limited thereto. For example, the diaphragm panel 610 may include a square shape in which the horizontal length and the vertical length are equal.

[0319] The cover member 630 may be disposed on the rear surface of the diaphragm panel 610. The cover member 630 may be configured to cover the rear surface of the diaphragm panel 610. The cover member 630 may include a rear portion 631 and a side portion 633. The cover member 630 may include a rear portion 631 that covers the rear surface of the diaphragm panel 610, and a side portion 633 that is connected to the rear portion 631 and supports the diaphragm panel 610. Since the rear portion 631 and the side portion 633 are respectively identical or substantially identical to the rear portion 131 and the side portion 135 of the cover member 130 described with reference to FIGS. 1 to 3, the description (or the description content) of the cover member 130 shown in FIGS. 1 to 3 may be included in the description of the cover member 630 shown in FIGS. 22 to 24, and the overlapping description therefor may be omitted or simplified.

[0320] A side portion 633 of the cover member 630 is connected or can be coupled to a rear edge portion of the diaphragm panel 610 via a coupling member (or connecting member) 620 .

[0321] The coupling member 620 may be configured to minimize or prevent vibrations of the diaphragm panel 610 from being transmitted to the cover member 630. The coupling member 620 may include material properties suitable for blocking vibrations. For example, the coupling member 620 may include a material having elasticity for vibration absorption (or shock absorption). The coupling member 620 according to an embodiment of the present specification may be made of a polyurethane material or a polyolefin material, but the embodiment of the present specification is not limited thereto. For example, the coupling member 620 may include one or more of an adhesive, a double-sided tape, a double-sided foam tape, and a double-sided cushion tape, but the embodiment of the present specification is not limited thereto.

[0322] The coupling member 620 prevents physical contact (or friction) between the diaphragm panel 610 and the side portion 633 of the cover member 630, thereby preventing the generation of noise (or noise) due to physical contact (or friction) between the diaphragm panel 610 and the cover member 630. For example, the coupling member 620 may be a buffer member, an elastic member, a damping member, a vibration absorbing member, or a vibration isolating member, but the embodiments of the present specification are not limited thereto.

[0323] The cover member 630 is arranged on the rear surface of the vibration member 600 at a predetermined interval along one or more of the first direction (X) and the second direction (Y), and may include first to nth (n is a natural number equal to or greater than 2) support portions 310, 320, 330 having curved portions 315.

[0324] Each of the first to third support parts 310, 320, 330 may include a curved surface part 315 configured to apply only tensile stress individually to each of the first to nth vibration devices 500. For example, each of the first to nth support parts 310, 320, 330 may include a curved surface part 315 having a preset curvature. Each of the first to nth support parts 310, 320, 330 may include a pair of first support members 311, 312 and / or a pair of second support members 321, 322 as shown in FIG. Since each of the first to nth support parts 310, 320, 330 is identical or substantially the same as the support parts 310, 320 shown in FIG. 4, the description (or contents of the description) of the support parts 310, 320 shown in FIG. 4 may be included in the description of the support parts 310, 320, 330 shown in FIGS. 22 to 24, and duplicated descriptions therefor may be omitted or simplified.

[0325] According to another embodiment of the present specification, each of the first to third support parts 310, 320, 330 may be configured on the rear surface of the vibrating member 600 or the rear surface part 631 of the cover member 630 to include a preset curvature. For example, each of the first to third support parts 310, 320, 330 may have a curved shape having one curvature (or a single curvature). For example, each of the curved surface parts 315 of each of the first to third support parts 310, 320, 330 may have a curved structure having one curvature (or a single curvature) without an inflection point.

[0326] According to another embodiment of the present specification, one or more of the curved surface portions 315 of each of the first to third support portions 310, 320, and 330 may have different sizes. For example, any one of the first to third support portions 310, 320, and 330 may have a smaller size than the remaining third support portion 330, like the first and second support portions 310 and 320 described with reference to FIG. 9. For example, the sizes of the support portions 310, 320, and 330 formed on the rear surface of the vibrating member 600 or the rear surface portion 631 of the cover member 630 may be gradually reduced from the center of the vibrating member 600 toward both edge portions based on the first direction (X).

[0327] The device 3 according to the third embodiment of the present specification may further include a gap space (GS) provided by the support part 300 between the rear surface of the vibrating member 600 or the rear surface part 631 of the cover member 630 and the first to nth vibrating devices 500.

[0328] The gap space (GS) may be provided between the rear part 631 of the cover member 630 and the first to nth vibrating devices 500 by the support part 300. The gap space (GS) may include a space where sound or sound pressure is generated by the vibration of each of the first to nth vibrating devices 500, a space that smooths the vibration of each of the first to nth vibrating devices 500, or a space or path through which sound waves generated by the vibration of each of the first to nth vibrating devices 500 are propagated to the vibrating member 600. For example, the gap space (GS) may be an air gap, a sound pressure generation space, an acoustic space, a sound pressure space, a resonating part, a resonating box, a sound wave propagation path, an acoustic energy incidence part, or an acoustic path, and examples of the present specification are not limited thereto.

[0329] Each of the first to nth vibration devices 500 may be coupled or attached to the curved surface portion 315 of a corresponding one of the first to nth supports 310, 320, 330.

[0330] According to an embodiment of the present specification, each of the first to nth vibration devices 500 may have or be prestressed by the curved surface portion 315 of the support portion 300 by being coupled or attached to the curved surface portion 315. For example, each of the first to nth vibration devices 500 may be tensile stressed or include tensile stress due to the curvature of the curved surface portion 315 of the support portion 300. For example, the curved surface portion 315 of the support portion 300 may be configured to apply only tensile stress to each of the first to nth vibration devices 500 to improve the vibration characteristics of each of the first to nth vibration devices 500. Therefore, each of the first to nth vibration devices 500 may be prestressed (or pretensile stressed) or vibrate while being bent into a curved shape, and thus may include the effect of increasing the second moment of area or unifying the vibration direction, as described above.

[0331] Each of the first to nth vibration devices 500 may include the vibration device described with reference to Fig. 5 and the vibration generator described with reference to Figs. 10 to 21D. Therefore, the description of the vibration device 500 shown in Fig. 5 and the description of the vibration generator 510 shown in Figs. 10 to 21D may be included in the description of each of the multiple vibration devices 500 shown in Fig. 23, and therefore duplicated descriptions thereof may be omitted for brevity.

[0332] Each of the first to n-th vibration devices 500 may be configured to generate sounds in the same range or different ranges. For example, the device 3 according to the third embodiment of the present specification includes the first to n-th vibration devices 500 arranged on each of the curved surface portions 315 of the first to n-th support portions 310, 320, and 330, and each of the first to n-th vibration devices 500 may be configured to generate sounds in the same range or different ranges.

[0333] One or more of the first to n-th vibration devices 500 may be configured to generate sounds in different frequency ranges or sounds in a low frequency range. As a result, the device 3 according to the third embodiment of the present specification can output stereophonic sounds or stereophonic sounds by sounds generated or output by regional vibrations of the vibrating member 600 caused by the vibrations of the first to n-th vibration devices 500, and can have multi-channel sound output characteristics.

[0334] Such a device 3 according to the third embodiment of the present specification includes the first to nth vibration devices 500 that vibrate while being subjected to a pre-stress (or pre-tensile stress) or bent into a curved shape, and thus the second moment of area of ​​the first to nth vibration devices 500 is increased or the vibration directions of the first to nth vibration devices 500 are unified in one direction, so that the acoustic characteristics and / or sound pressure characteristics generated by the vibration member 600 that vibrates due to the vibration of the first to nth vibration devices 500 can be improved. The device 3 according to the third embodiment of the present specification can output stereophonic sounds or stereophonic sounds with improved acoustic characteristics and / or sound pressure characteristics by vibrating the vibration member 600 by the vibration of each of the first to nth vibration devices 500 to output sound, and can have a multi-channel sound output characteristic.

[0335] Fig. 25 is another cross-sectional view taken along line V-V' in Fig. 22, and Fig. 26 is a perspective view showing the cover member and the support part shown in Fig. 25. Figs. 25 and 26 show the device 3 described with reference to Figs. 22 to 24, in which a hole is further configured in the vibration member. Therefore, in the description of Figs. 25 and 26, the same reference numerals are given to the remaining same or similar components, except for the hole and the components related thereto, and the duplicated description thereof may be omitted for brevity.

[0336] 25 and 26, in a device 4 according to a fourth embodiment of the present specification, the vibrating member 600 may further include first through nth holes 637 overlapping with the first through nth vibrating devices 500, respectively. In one or more embodiments, each of the first through nth holes 637 may overlap with a corresponding one of the first through nth vibrating devices 500. In one embodiment, n may be a natural number equal to or greater than 2. In other embodiments, n may be a natural number equal to 1, such as having one hole 637 overlapping with one vibrating device 500.

[0337] Each of the one or more 1st to nth holes 637 may be formed in the cover member 630 overlapping with each of the 1st to nth vibration devices 500. For example, each of the one or more 1st to nth holes 637 may be formed to penetrate the rear part 631 of the cover member 630 overlapping with each of the 1st to nth vibration devices 500 along the third direction (Z). As a result, the one or more 1st to nth holes 637 may be an opening, a communication part, an opening hole, a communication hole, a through part, a through hole, a support hole, a slit, a slot, or a sound passing part, and the embodiment of the present specification is not limited thereto. Since the one or more 1st to nth holes 637 are the same or substantially the same as the hole 137 described with reference to FIGS. 7 to 9, a duplicated description thereof will be omitted for brevity, and the description of the hole 137 shown in FIGS. 7 to 9 may be included in the description of FIGS. 25 and 26.

[0338] According to an embodiment of the present specification, the one or more of the first to nth holes 637 may have a size smaller than the vibration device 500. For example, the one or more of the first to nth holes 637 may include a circular shape, an elliptical shape, a rectangular shape, a slit shape, a slot shape, a dotted line shape, or the like, but the embodiment of the present specification is not limited thereto.

[0339] In the device 4 according to the fourth embodiment of the present specification, as in the device 3 according to the third embodiment of the present specification, the second moment of area of ​​the vibration device 500 that vibrates while being subjected to a pre-stress (or pre-tensile stress) or bent into a curved shape is increased or the vibration direction of the vibration device 500 is unified in one direction, so that the acoustic characteristics and / or sound pressure characteristics generated by the vibration member 600 vibrating due to the vibration of the vibration device 500 can be improved. And, the device 4 according to the fourth embodiment of the present specification includes one or more first to n-th holes 637 formed in the cover member 630, so that the sound (or sound wave) generated by the vibration of the vibration device 500 can be directly transmitted to the diaphragm panel 610, thereby increasing the transmission efficiency of the vibration, and the acoustic characteristics and / or sound pressure characteristics generated by the vibration of the vibration member 600 or the diaphragm panel 610 can be further improved.

[0340] FIG. 27 is a rear perspective view showing an apparatus according to a fifth embodiment of the present specification, FIG. 28 is a cross-sectional view taken along line VI-VI' shown in FIG. 27, and FIG. 29 is a perspective view showing the base plate and support shown in FIGS. 27 and 28.

[0341] 27 to 29, the device 5 according to the fifth embodiment of the present invention may be one (or a single) vibrating part that is coupled or attached to the vibrating member 900 and configured to vibrate the vibrating member 900 to output vibration or sound. Thus, the device 5 according to the fifth embodiment of the present invention may be a vibration generating device, a vibration generating element, a vibration source, a vibration generating unit, a vibration unit, a vibration module, a vibration generating part, an active vibration member, a sound generating element, a sound generating unit, a transparent vibration generating device, a transparent sound generating unit, a translucent sound generating unit, an opaque sound generating unit, a transparent sound generating element, a transparent vibration source, a translucent vibration source, an opaque vibration source, or a vibrating structure, but the embodiments of the present specification are not limited thereto.

[0342] The device 5 according to the fifth embodiment of the present specification may be applied to configure an audio device, an audio output device, a sound bar, an audio system, an audio device for a transportation device, an audio output device for a transportation device, or a sound bar for a transportation device. For example, the transportation device may include one or more seats and one or more glass windows. For example, the transportation device may include a vehicle, a train, a ship, or an aircraft, and the embodiments of the present specification are not limited thereto. In addition, the device 5 according to other embodiments of the present specification may configure analog or digital signage such as an advertising billboard, a poster, or a guide board.

[0343] The apparatus 5 according to the fifth embodiment of the present invention may include a base member 800 , a support portion 300 , and a vibration device 500 .

[0344] The base member 800 may include a polygonal shape having three or more sides, or a non-square shape having three or more sides and one or more curved sides. For example, the base member 800 may include a square shape or a rectangular shape.

[0345] The base member 800 according to one embodiment of the present disclosure may include a base plate 810 and a coupling member 830 .

[0346] The base plate 810 may include a triangular or more polygonal shape or a triangular or more non-square shape having one or more curved surfaces. For example, the base plate 810 may include a square shape or a rectangular shape. For example, the base plate 810 may include a circular shape or an elliptical shape. For example, the base plate 810 may be a support member, a base frame, or a support frame, but examples herein are not limited thereto.

[0347] The base plate 810 may include a metallic material having suitable material properties for outputting sound by vibration, or may include a non-metallic material (or a composite non-metallic material). For example, the base plate 810 may be made of a transparent plastic material, an opaque plastic material, wood, carbon, or a metallic material, but the embodiments of the present specification are not limited thereto.

[0348] The coupling member 830 may be disposed on a first surface of the base plate 810. The coupling member 830 may couple or connect the vibration device 500 or the base plate 810 to the vibration member 900. The vibration device 500 or the base plate 810 may be coupled or connected to the vibration member 900 via the coupling member 830.

[0349] The support portion 300 is disposed on the rear surface of the base member 800 or the rear surface of the base plate 810 and may include a curved portion 315 .

[0350] The support 300 may include a curved portion 315 configured to apply only tensile stress to the vibration device 500. For example, the support 300 may include a curved portion 315 having a preset curvature. The support 300 may include a pair of first support members 311, 312 and a pair of second support members 321, 322 as shown in FIG. 4. Since the support 300 is the same or substantially the same as the support 310, 320 shown in FIG. 4, the description (or description content) of the support 310, 320 shown in FIG. 4 may be included in the description of the support 300 shown in FIGS. 27 to 29, and the overlapping description thereof may be omitted or simplified for brevity.

[0351] The support 300 may be configured on the rear surface of the base member 800 or the rear surface of the base plate 810 to include a preset curvature. For example, the support 300 may have a curved shape having one curvature (or a single curvature). For example, the curved portion 315 of the support 300 may have a curved structure having one curvature (or a single curvature) without an inflection point.

[0352] The device 5 according to the fifth embodiment of the present specification may further include a gap space (GS) provided by the support portion 300 between the rear surface of the base member 800 or the rear surface of the base plate 810 and the vibration device 500.

[0353] The gap space (GS) may be provided between the base plate 810 and the first to nth vibrating devices 500 by the support part 300. The gap space (GS) may include a space where sound or sound pressure is generated by vibration of the vibrating device 500, a space that smooths the vibration of the vibrating device 500, or a space or path through which sound waves generated by the vibration of the vibrating device 500 are propagated to the vibrating member 900. For example, the gap space (GS) may be an air gap, a sound pressure generation space, an acoustic space, a sound pressure space, a resonating part, a sound box, a sound wave propagation path, an acoustic energy incidence part, or an acoustic path, and the embodiments of the present specification are not limited thereto.

[0354] The vibration device 500 can have or be prestressed by the curved portion 315 of the support 300 by being coupled or attached to the curved portion 315. For example, the vibration device 500 can be tensile stressed or include tensile stress due to the curvature of the curved portion 315. For example, the curved portion 315 of the support 300 can be configured to apply only tensile stress to the vibration device 500 to improve the vibration characteristics of the vibration device 500. Thus, the vibration device 500 can be prestressed (or pre-tensile stressed) or vibrate while bent into a curved shape, which can include effects due to an increase in the second moment of area or a unification of the vibration direction.

[0355] Each of the vibration devices 500 may include the vibration device described with reference to Figure 5 and the vibration generator described with reference to Figures 10 to 21D. Therefore, the description of the vibration device 500 shown in Figure 5 and the description of the vibration generator 510 shown in Figures 10 to 21D may be included in the description of the vibration device 500 shown in Figures 27 and 28, and therefore duplicate descriptions thereof may be omitted for brevity.

[0356] The device 5 according to the fifth embodiment of the present specification is coupled to a vibrating member 900 via a coupling member 830, and can vibrate the vibrating member 900 by sound (or sound waves) generated by the vibration of the vibrating device 500, thereby improving the acoustic characteristics and / or sound pressure characteristics generated by the vibration of the vibrating member 900. For example, the vibrating member 900 can be a passive vibrating member, a vibrating plate, a vibrating object, an acoustic output plate, an acoustic vibration plate, or a video screen, but the embodiments of the present specification are not limited thereto.

[0357] The vibrating member 900 may be a vibrating plate comprising a metallic material or a non-metallic material (or a composite non-metallic material) having suitable material properties to be vibrated by the device 5 to output sound.

[0358] The vibration member 900 according to an embodiment of the present specification may be a vibration plate including at least one of metal, plastic, paper, fiber, cloth, leather, wood, rubber, glass, carbon, and mirror, and the embodiment of the present specification is not limited thereto. For example, the paper may be a cone paper for a speaker. For example, the cone paper may be pulp or foamed plastic, and the embodiment of the present specification is not limited thereto.

[0359] The vibration member 900 according to another embodiment of the present specification may include a display panel having pixels for displaying an image, or may include a non-display panel. For example, the vibration member 900 may include any 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, an exterior material of a vehicle, a glass window of a vehicle, a seat interior 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, and a mirror, but the embodiment of the present specification is not limited thereto. For example, the non-display panel may include 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), but the embodiment of the present specification is not limited thereto.

[0360] The coupling member 830 may be configured to minimize or prevent vibration of the vibrating member 900 from being transmitted to the support 300. The coupling member 830 may include material properties suitable for blocking vibration. For example, the coupling member 830 may include a material having elasticity for vibration absorption (or shock absorption). The coupling member 830 according to an embodiment of the present specification may be made of a polyurethane material or a polyolefin material, but the embodiment of the present specification is not limited thereto. For example, the coupling member 830 may include one or more of an adhesive, a double-sided tape, a double-sided foam tape, and a double-sided cushion tape, but the embodiment of the present specification is not limited thereto.

[0361] In the device 5 according to the fifth embodiment of the present specification, the acoustic characteristics and / or sound pressure characteristics generated by the vibration of the vibration device 500 can be improved by increasing the second moment of area of ​​the vibration device 500 that vibrates while being subjected to pre-stress (or pre-tensile stress) or bent into a curved shape, or by unifying the vibration direction of the vibration device 500 in one direction, and the sound generated by the vibration of the vibration device 500 can be concentrated in the front direction of the center of the curved portion 315. This can improve the acoustic characteristics and / or sound pressure characteristics generated by the vibration of the vibration member 900.

[0362] 30 is another cross-sectional view taken along line VI-VI' shown in FIG. 27, and FIG. 31 is a perspective view showing the base plate and the support portion shown in FIG.

[0363] 30 and 31, in the device 6 according to the sixth embodiment of the present specification, the base member 800 or the base plate 810 may further include one or more holes 837 overlapping with the vibration device 500.

[0364] One or more holes 837 may be formed in the base plate 810 overlapped with the vibration device 500. For example, each of the one or more holes 837 may be formed to penetrate the base plate 810 overlapped with the vibration device 500 along the third direction (Z). Thus, the one or more holes 837 may be an opening, a communication part, an opening hole, a communication hole, a through part, a through hole, a support hole, a slit, a slot, or an acoustic passage part, and the embodiments of the present specification are not limited thereto. Since the one or more holes 837 are the same or substantially the same as the one or more holes 137 described with reference to FIGS. 7 to 9 or the one or more holes 637 described with reference to FIGS. 25 and 26, a duplicated description thereof will be omitted for brevity, and the description of the hole 137 shown in FIGS. 7 to 9 or the one or more holes 637 shown in FIGS. 25 and 26 may be included in the description of the one or more holes 837 shown in FIGS. 30 and 31.

[0365] According to an embodiment of the present specification, the one or more holes 837 may have a size smaller than the vibration device 500. For example, the one or more holes 837 may include a circular shape, an elliptical shape, a rectangular shape, a slit shape, a slot shape, or a dotted line shape, but the embodiment of the present specification is not limited thereto. The one or more holes 837 may be covered by the vibration device 500. For example, the one or more holes 837 may be disposed between a pair of first support members (or support bars) 311, 312 shown in FIG. 4. For example, the one or more holes 837 may be surrounded by a pair of first support members (or support bars) 311, 312 and a pair of second support members (or support bars) 321, 322 shown in FIG. 4.

[0366] In the device 6 according to the sixth embodiment of the present specification, similarly to the device 5 according to the fifth embodiment of the present specification, the second moment of area of ​​the vibration device 500 that vibrates while being subjected to a pre-stress (or pre-tensile stress) or bent into a curved shape is increased or the vibration direction of the vibration device 500 is unified in one direction, so that the acoustic characteristics and / or sound pressure characteristics generated by the vibration member 900 vibrating due to the vibration of the vibration device 500 can be improved. In addition, the device 6 according to the sixth embodiment of the present specification includes one or more holes 837 formed in the base member 800 or the base plate 810, so that the sound (or sound waves) generated by the vibration of the vibration device 500 can be directly transmitted to the vibration member 900, thereby increasing the transmission efficiency of the vibration, and the acoustic characteristics and / or sound pressure characteristics generated by the vibration of the vibration member 900 can be further improved.

[0367] Fig. 32 shows an apparatus according to a seventh embodiment of the present specification, which includes or applies the apparatus shown in one or more of Figs.

[0368] Referring to FIG. 32, the device 7 according to the seventh embodiment of the present specification may constitute a vibration device for a transportation device, a vibration generating device for a transportation device, an audio device for a transportation device, an audio generating device for a transportation device, a speaker for a transportation device, an audio device for a vehicle, an audio generating device for a vehicle, or a speaker for a vehicle.

[0369] The device 7 according to the seventh embodiment of the present specification may include one or more vibration generating devices 50 configured to output sound to one or more of the interior space (IS) and exterior space (OS) of the transportation device 9.

[0370] The vehicle 9 may include one or more seats and one or more glass windows. For example, the vehicle 9 may include, but is not limited to, a car, a train, a boat, or an aircraft.

[0371] The transportation device 9 according to one embodiment of the present disclosure may include a main structure 20a, an exterior material 20b, and an interior material 20c.

[0372] The main structure (or frame structure) 20a may include a main frame, a sub-frame, a side frame, a door frame, an underframe, a seat frame, and the like, but examples of the present specification are not limited thereto.

[0373] The exterior material 20b may be configured to cover the main structure 20a. For example, the exterior material 20b may be configured to cover the exterior of the main structure 20a. The exterior material 20b according to an embodiment of the present specification may include a hood panel, a front fender panel, a dash panel, a pillar panel, a trunk panel, a roof panel, a floor panel, a door inner panel, a door outer panel, etc., but the embodiment of the present specification is not limited thereto. The exterior material 20b according to an embodiment of the present specification may include at least one of a flat portion and a curved portion. For example, the exterior material 20b may have a surface structure corresponding to the surface structure of the corresponding main structure 20a, or may have a surface structure different from the surface structure of the corresponding main structure 20a.

[0374] The interior material 20c may include all parts that make up the interior of the transportation apparatus 9 or may include all parts that are disposed in the interior space (IS) of the transportation apparatus 9. For example, the interior material 20c may be an interior member or an interior finish member of the transportation apparatus 9, but examples of the present specification are not limited thereto.

[0375] The interior material 20c according to an embodiment of the present specification may be configured to be exposed to the interior space (IS) of the transportation device 9 while covering one or more of the main structure 20a and the exterior material 20b in the interior space (IS) of the transportation device 9. For example, the interior material 20c may include a dashboard, a pillar interior material (or pillar trim), a floor interior material (or floor carpet), a roof interior material (or headliner), a door interior material (or door trim), a handle interior material (or steering wheel cover), a seat interior material, a rear package interior material (or rear seat shelf), an overhead console (or interior lighting interior material), a rearview mirror, a glove box, and a sun visor, but the embodiment of the present specification is not limited thereto.

[0376] The interior material 20c according to an embodiment of the present specification may include one or more materials of plastic, fiber, rubber, leather, cloth, wood, carbon, and metal, but the embodiment of the present specification is not limited thereto.

[0377] The interior material 20c according to another embodiment of the present specification may include a base member and a skin member. For example, the base member may be an injection part, a first interior material, an inner interior material, or a back interior material, but the embodiment of the present specification is not limited thereto. The skin member may be a second interior material, an outer interior material, a front interior material, an outer skin member, a reinforcing member, or a decorative member, but the embodiment of the present specification is not limited thereto.

[0378] The interior material 20c or the base member may be made of a plastic material. For example, the interior material 20c or the base member may be an injection product formed by an injection process using a thermoplastic resin or a thermosetting resin, but the embodiments of the present specification are not limited thereto. The interior material 20c or the base member may be configured to cover one or more of the main structure 20a and the exterior material 20b in the interior space (IS) of the transportation device 9. For example, the interior material 20c or the base member may be configured to cover at least one surface (or interior surface) of the main frame, the side frame, the door frame, and the handle frame exposed to the interior space (IS) of the transportation device 9.

[0379] The skin member may be disposed to cover the base member. The skin member may be configured to be exposed to the interior space (IS) of the transportation device 9 while covering the base member in the interior space (IS). For example, the skin member may be disposed on or coupled to a front surface of the base member exposed to the interior space (IS) of the transportation device 9. For example, the skin member may include one or more materials selected from the group consisting of plastic, fiber, leather, rubber, cloth, wood, carbon, and metal, but the embodiments of the present specification are not limited thereto.

[0380] The interior material 20c or the skin member of the fiber material may include at least one of synthetic fiber, carbon fiber (or aramid fiber), and natural fiber. For example, the interior material 20c or the skin member of the fiber material may be a woven sheet, a knitted sheet, or a nonwoven fabric, but the examples of the present specification are not limited thereto. For example, the interior material 20c or the skin member of the fiber material may be a fabric member, but the examples of the present specification are not limited thereto. The synthetic fiber may include polyolefin-based fiber, which is a thermoplastic resin and is an environmentally friendly material that does not emit harmful substances relatively, but the examples of the present specification are not limited thereto. For example, the polyolefin-based fiber may include polyethylene fiber, polypropylene fiber, or polyethylene terephthalate fiber, but the examples of the present specification are not limited thereto. The polyolefin-based fiber may be a single resin fiber or a core-shell structure fiber. The natural fibers may be any one or a mixture of two or more of jute fiber, kenaf fiber, abaca fiber, coconut fiber, and wood fiber, but the examples herein are not limited thereto.

[0381] The one or more vibration generating devices 50 may be configured to output sound between the exterior material 20b and the interior material 20c. For example, the one or more vibration generating devices 50 may be disposed between the exterior material 20b and the interior material 20c and indirectly or directly vibrate one or more of the exterior material 20b and the interior material 20c to output sound. Thus, one or more of the exterior material 20b and the interior material 20c may be a vibrating member or a passive vibrating member that generates or outputs sound.

[0382] The one or more vibration generating devices 50 may be coupled to or attached to the exterior material 20b or the interior material 20c in the space between the exterior material 20b and the interior material 20c. One or more of the exterior material 20b and the interior material 20c of the transport device 9 may be a vibration plate, an acoustic vibration plate, or an acoustic generation plate for sound output. For example, each of the exterior material 20b and the interior material 20c for sound output has a size larger than the one or more vibration generating devices 50, and thus performs the function of a large-area vibration plate, a large-area acoustic vibration plate, or a large-area acoustic generation 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 50. For example, the frequency of the low-frequency range sound may be 500 Hz or less, but the embodiment of the present specification is not limited thereto.

[0383] One or more vibration generating devices 50 according to an embodiment of the present specification can output sound between the exterior material 20b and the interior material 20c of the transportation device 9. For example, the one or more vibration generating devices 50 can be connected or coupled to one or more of the exterior material 20b and the interior material 20c between the exterior material 20b and the interior material 20c, and can indirectly or directly vibrate one or more of the exterior material 20b and the interior material 20c to output sound.

[0384] One or more vibration generators 50 according to an embodiment of the present specification may include the devices 5, 6 according to the fifth or sixth embodiment of the present specification described with reference to Figures 27 to 31. Accordingly, redundant descriptions of the one or more vibration generators 50 may be omitted for the sake of brevity.

[0385] One or more vibration generating devices 50 may be coupled or attached to the exterior material 20b or the interior material 20c through a coupling member 830 in the space between the exterior material 20b and the interior material 20c. For example, when one or more vibration generating devices 50 include the devices 5 and 6 described with reference to Figs. 27 to 31, the base member 800 or the base plate 810 may be coupled or attached to the interior material 20c through a coupling member 830 in the space between the exterior material 20b and the interior material 20c. As a result, a gap space (GS) is provided between the one or more vibration generating devices 50 and the interior material 20c, and the sound (S) generated by the vibration of the one or more vibration generating devices 50 is output to the gap space (GS), and the interior material 20c vibrates due to the sound (or sound waves) transmitted through the gap space (GS) to output the sound (S) to one or more of the interior space (IS) and the exterior space (OS) of the transportation device 9. Therefore, the device 7 according to the seventh embodiment of the present specification can vibrate the interior material 20c through vibration from one or more vibration generating devices 50, thereby outputting sound to one or more of the interior space (IS) and exterior space (OS) of the transportation device 9.

[0386] The device 7 according to the seventh embodiment of the present specification can output sound to one or more of the interior space (IS) and exterior space (OS) of the transportation device 9 by indirectly or directly vibrating one or more of the exterior material 20b and interior material 20c of the transportation device 9.

[0387] Fig. 33 shows an apparatus according to an eighth embodiment of the present specification, which includes or applies the apparatus shown in one or more of Figs.

[0388] Referring to FIG. 33, an apparatus 8 according to an eighth embodiment of the present specification may include one or more vibration generating devices 70 disposed on a glass window 20d of a transportation device 9 to output sound.

[0389] The glass window 20d of the transportation device 9 may be at least one of a front glass window and a side glass window, and the glass window 20d of the transportation device 9 may further include at least one of a rear glass window and a roof glass window, and the embodiments of the present specification are not limited thereto.

[0390] The glass window 20d according to one embodiment of the present disclosure may be configured to be entirely transparent. The glass window 20d according to other embodiments of the present disclosure may include a transparent portion and a semi-transparent portion surrounding the transparent portion. The glass window 20d according to other embodiments of the present disclosure may include a transparent portion and an opaque portion surrounding the transparent portion.

[0391] The one or more vibration generating devices 70 may be configured to be transparent or translucent. For example, if the glass window 20d is entirely transparent, the one or more vibration generating devices 70 may be configured to be transparent and disposed in the middle or peripheral region of the glass window 20d. If the glass window 20d includes a translucent or opaque portion, the one or more vibration generating devices 70 may be configured to be translucent or opaque and disposed in the translucent or opaque portion of the glass window 20d. For example, the one or more vibration generating devices 70 may be expressed in terms such as a transparent vibration generating device, a translucent vibration generating device, an opaque vibration generating device, a transparent sound generating device, a translucent sound generating device, or an opaque sound generating device, but the embodiments of the present specification are not limited thereto.

[0392] The one or more vibration generating devices 70 may be coupled or connected to one side (or interior surface) of the glass window 20d exposed to the interior space (IS) of the transportation device 9. For example, the one or more vibration generating devices 70 may be disposed on at least one or more of the front glass window and the side glass window, and may further be disposed on at least one or more of the rear glass window and the roof glass window.

[0393] The one or more vibration generating devices 70 can indirectly or directly vibrate the glass window 20d to output sound. For example, the one or more vibration generating devices 70 can be configured to output sound to the indoor space (IS) by self-vibration or to vibrate the glass window 20d to output sound to the indoor space (IS).

[0394] One or more vibration generating devices 70 according to an embodiment of the present specification may include one or more of the devices 5, 6 according to the fifth or sixth embodiment of the present specification described with reference to Figures 27 to 31, and may be configured to be transparent, semi-transparent, or opaque. For example, the base member 800 and vibration device 500 described with reference to Figures 27 to 31 may be configured to be transparent, semi-transparent, or opaque, and therefore redundant description thereof may be omitted for the sake of brevity.

[0395] One or more vibration generating devices 70 according to an embodiment of the present specification may be coupled or attached to one side (or indoor surface) of the glass window 20d via a coupling member 830. For example, when one or more vibration generating devices 70 include the devices 5 and 6 described with reference to Figs. 27 to 31, the base plate 810 of the base member 800 may be coupled or attached to one side (or indoor surface) of the glass window 20d via a coupling member 830. For example, the device 8 according to the eighth embodiment of the present specification may output sound (S) generated by vibration of one or more vibration generating devices 70 to one or more of the indoor space (IS) and the outdoor space (OS). And, the device 8 according to the eighth embodiment of the present specification may vibrate the glass window 20d by vibration of one or more vibration generating devices 70 to output sound (S) to one or more of the indoor space (IS) and the outdoor space (OS) of the transport device 9.

[0396] According to other embodiments of the present specification, the one or more vibration generating devices 70 may be covered by an optical film attached to one side (or an interior surface) of the glass window 20d. The optical film may be attached to one side (or an interior surface) of the glass window 20d so as to cover the one or more vibration generating devices 70, thereby protecting the one or more vibration generating devices 70 or fixing the one or more vibration generating devices 70 to the glass window 20d. The optical film may include one or more of an ultraviolet blocking film that blocks ultraviolet rays, a light blocking film that blocks light, and a heat blocking film that blocks heat, and the embodiments of the present specification are not limited thereto.

[0397] Thus, the device 8 according to the eighth embodiment of the present specification can be coupled to the glass window 20d and self-vibrate, or can use the glass window 20d as an acoustic diaphragm to output sound (S) to one or more of the interior space (IS) and the exterior space (OS).

[0398] Fig. 34 is a plan view showing an apparatus according to a ninth embodiment of the present specification, and Fig. 35 is a cross-sectional view showing an apparatus according to a ninth embodiment of the present specification. Fig. 36 is a view showing sound generating devices arranged around the driver's seat and front passenger seats in Figs. 34 and 35, and Fig. 37 is a view showing sound generating devices arranged on the door and glass window in Figs. 34 and 35. Fig. 38 is a view showing sound generating devices arranged on the loop panel in Figs. 34 and 35, and Fig. 39 is a view showing sound generating devices arranged on the roof panel, glass window, and seat in Figs. 34 and 35.

[0399] 34 to 39 in combination with FIG. 32, the device 9 according to the ninth embodiment of the present specification may be a transportation device including one or more seats and one or more glass windows. For example, the transportation device may include a car, a train, a ship, or an aircraft, but the embodiments of the present specification are not limited thereto.

[0400] The device 9 according to the ninth embodiment of the present specification may include a first sound generating device 25-1 configured to output sound between the main structure 20a and the exterior material 20b and the interior material 20c. For example, the first sound generating device 25-1 may be disposed between the main structure 20a and the exterior material 20b, between the main structure 20a and the interior material 20c, or between the exterior material 20b and the interior material 20c to output sound.

[0401] The first sound generating device 25-1 may include one or more vibration generating devices 25A to 25G arranged between at least one of the dashboard 23A, the pillar interior material 23B, the roof interior material 23C, the door interior material 23D, the seat interior material 23E, the handle interior material 23F, and the floor interior material 23G and the main structure 20a (or the exterior material (20b)). For example, the first sound generating device 25-1 includes at least one of the first to seventh vibration generating devices 25A to 25G, and can output sound of one or more channels.

[0402] 34 to 36, the first vibration generating device 25A according to an embodiment of the present specification may be disposed between the dash panel and the dashboard 23A, and configured to indirectly or directly vibrate the dashboard 23A to output sound. For example, the first vibration generating device 25A includes the devices 5 and 6 described with reference to FIGS. 27 to 31, and therefore redundant description thereof may be omitted for brevity. For example, the first vibration generating device 25A may be expressed by terms such as a dashboard speaker or a first speaker, but the embodiments of the present specification are not limited thereto.

[0403] According to one embodiment of the present disclosure, at least one of the dash panel and dashboard 23A may include a first region corresponding to a driver's seat (DS), a second region corresponding to a passenger's seat (FPS), and a third region (or intermediate region) between the first and second regions. At least one of the dash panel and dashboard 23A may further include an inclined fourth region facing the passenger's seat (FPS).

[0404] According to an embodiment of the present specification, the first vibration generator 25A may be arranged to vibrate at least one or more of the first to fourth regions of the dashboard 23A. For example, the first vibration generator 25A may be arranged in each of the first and second regions of the dashboard 23A, or in each of the first to fourth regions of the dashboard 23A. For example, the first vibration generator 25A may be arranged in each of the first and second regions of the dashboard 23A, or in at least one or more of the first to fourth regions of the dashboard 23A. For example, the first vibration generator 25A may be configured to output sound of 150 Hz to 20 kHz. For example, the first vibration generators 25A configured to vibrate at least one of the first to fourth regions of the dashboard 23A may have sound output characteristics that are the same as or different from each other. For example, the first vibration generators 25A configured to vibrate each of the first to fourth regions of the dashboard 23A may have sound output characteristics that are the same as or different from each other.

[0405] The second vibration generating device 25B according to an embodiment of the present specification may be disposed between the pillar panel and the pillar interior material 23B, and may be configured to indirectly or directly vibrate the pillar interior material 23B to output sound. For example, the second vibration generating device 25B includes the devices 5 and 6 described with reference to Figs. 27 to 31, and therefore, a duplicated description thereof may be omitted for brevity. For example, the second vibration generating device 25B may be expressed by terms such as a pillar speaker, a tweeter speaker, or a second speaker, but the embodiments of the present specification are not limited thereto.

[0406] According to one embodiment of the present specification, the pillar panel may include a first pillar (or A-pillar) arranged on both sides of the windshield, a second pillar (or B-pillar) arranged on both sides of the center of the vehicle body, and a third pillar (or C-pillar) arranged on both sides of the rear of the vehicle body. The pillar interior material 23B may include a first pillar interior material 23B1 covering the first pillar, a second pillar interior material 23B2 covering the second pillar, and a third pillar interior material 23B3 covering the third pillar.

[0407] According to one embodiment of the present specification, the second vibration generator 25B is disposed at least one of between the first pillar and the first pillar interior material 23B1, between the second pillar and the second pillar interior material 23B2, and between the third pillar and the third pillar interior material 23B3, thereby vibrating at least one of the first to third pillar interior materials 23B1, 23B2, and 23B3. For example, the second vibration generator 25B may be configured to output sound of 2 kHz to 20 kHz, but the embodiment of the present specification is not limited thereto. For example, the second vibration generator 25B may be configured to output sound of 150 Hz to 20 kHz. For example, the second vibration generators 25B configured to vibrate at least one of the first to third pillar interior materials 23B1, 23B2, and 23B3 may have the same or different sound output characteristics.

[0408] 35, 38, and 39, the third vibration generator 25C according to an embodiment of the present specification may be disposed between the roof panel and the roof interior material 23C, and may be configured to indirectly or directly vibrate the roof interior material 23C to output sound. For example, the third vibration generator 25C includes the devices 5 and 6 described with reference to Figs. 27 to 31, and therefore, redundant description thereof may be omitted for brevity. For example, the third vibration generator 25C may be expressed by terms such as a roof speaker or a third speaker, but the embodiments of the present specification are not limited thereto.

[0409] According to one embodiment of the present specification, at least one of the roof panel and the roof interior material 23C covering the roof panel may include a first region corresponding to the driver's seat (DS), a second region corresponding to the passenger seat (FPS), a third region corresponding to the area between the driver's seat (DS) and the passenger seat (FPS), a fourth region corresponding to the first rear passenger seat (RPS1) behind the driver's seat (DS), a fifth region corresponding to the second rear passenger seat (RPS2) behind the passenger seat (FPS), a sixth region corresponding to the area between the first rear passenger seat (RPS1) and the second rear passenger seat (RPS2), and a seventh region between the third region and the sixth region.

[0410] According to an embodiment of the present specification, the third vibration generator 25C may be configured to vibrate at least one or more of the first to seventh regions of the roof interior material 23C. For example, the third vibration generator 25C may be configured to output sound of 150 Hz to 20 kHz. For example, the third vibration generators 25C configured to vibrate at least one or more of the first to seventh regions of the roof interior material 23C may have the same or different sound output characteristics. For example, the third vibration generators 25C configured to vibrate each of the first to seventh regions of the roof interior material 23C may have the same or different sound output characteristics. For example, at least one or more of the third vibration generators 25C configured to vibrate at least one or more of the first to seventh regions of the roof interior material 23C may be configured to output sound of 2 kHz to 20 kHz, and the remaining may be configured to output sound of 150 Hz to 20 kHz. For example, at least one of the third vibration generating devices 25C configured to vibrate each of the first to seventh regions of the roof interior material 23C may be configured to output sound from 2 kHz to 20 kHz, and the remainder may be configured to output sound from 150 Hz to 20 kHz.

[0411] 34 to 37, the fourth vibration generating device 25D according to an embodiment of the present specification may be disposed between the door frame and the door interior material 23D, and may be configured to indirectly or directly vibrate the door interior material 23D to output sound. For example, the fourth vibration generating device 25D includes the devices 5 and 6 described with reference to Figs. 27 to 31, and therefore redundant description thereof may be omitted for brevity. For example, the fourth vibration generating device 25D may be expressed by terms such as a door speaker or a fourth speaker, but the embodiments of the present specification are not limited thereto.

[0412] According to one embodiment of the present specification, at least one of the door frame and the door interior material 23D may include an upper region, a middle region, and a lower region based on the height direction (Z). For example, the fourth vibration generator 25D is 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 23D, thereby vibrating at least one of the upper region, the middle region, and the lower region of the door interior material 23D.

[0413] 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 23D may include a first door interior material (or a left front door interior material) 23D1 covering the first door frame, a second door interior material (or a right front door interior material) 23D2 covering the second door frame, a third door interior material (or a left rear door interior material) 23D3 covering the third door frame, and a fourth door interior material (or a right rear door interior material) 23D4 covering the fourth door frame. For example, the fourth vibration generating device 25D is 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 23D1 to 23D4, 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 23D1 to 23D4.

[0414] According to one embodiment of the present specification, the fourth vibration generator 25D configured to vibrate the upper regions of each of the first to fourth door interior materials 23D1 to 23D4 may be configured to output sound of 2 kHz to 20 kHz, or may be configured to output sound of 150 Hz to 20 kHz. For example, the fourth vibration generator 25D configured to vibrate at least one or more upper regions of the first to fourth door interior materials 23D1 to 23D4 may be configured to output sound of 2 kHz to 20 kHz, or may be configured to output sound of 150 Hz to 20 kHz.

[0415] According to an embodiment of the present specification, the fourth vibration generating device 25D configured to vibrate at least one or more middle regions and / or lower regions of the first to fourth door interior materials 23D1 to 23D4 may be configured to output sound of 150 Hz to 20 kHz. The fourth vibration generating device 25D configured to vibrate the middle region and / or lower region of each of the first to fourth door interior materials 23D1 to 23D4 may be configured to output sound of 150 Hz to 20 kHz. For example, the fourth vibration generating device 25D configured to vibrate at least one or more middle regions and / or lower regions of the first to fourth door interior materials 23D1 to 23D4 may be any one or more of a woofer, a mid-woofer, and a subwoofer. For example, the fourth vibration generating device 25D configured to vibrate the middle region and / or lower region of each of the first to fourth door interior materials 23D1 to 23D4 may be any one or more of a woofer, a mid-woofer, and a subwoofer.

[0416] The sounds output from the fourth vibration generator 25D arranged in the first door interior material 23D1 and the fourth vibration generator 25D arranged in the second door interior material 23D2 may be output together. For example, the sounds output from at least one of the fourth vibration generator 25D arranged in the first door interior material 23D1 and the fourth vibration generator 25D arranged in the second door interior material 23D2 may be output together. Also, the sounds output by the fourth vibration generator 25D arranged in the third door interior material 23D3 and the fourth vibration generator 25D arranged in the fourth door interior material 23D4 may be output together.

[0417] According to one embodiment of the present specification, the upper regions of each of the first to fourth door interior materials 23D1 to 23D4 may include a first upper region adjacent to the dashboard 23A, a second upper region adjacent to the rear passenger seats (RPS1, RPS2, RPS3), and a third upper region between the first and second upper regions. For example, the fourth vibration generator 25D may be disposed in one or more of the first to third upper regions of each of the first to fourth door interior materials 23D1 to 23D4.

[0418] According to one embodiment of the present specification, the fourth vibration generator 25D may be disposed in a first upper region of each of the first and second door interior materials 23D1, 23D2, 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 23D1, 23D2. For example, the fourth vibration generator 25D may be disposed in one or more of the first to third upper regions of at least one or more of the first to fourth door interior materials 23D1 to 23D4. For example, the fourth vibration generating device 25D configured to vibrate one or more first upper regions of the first and second door interior materials 23D1, 23D2 may be configured to output sound of 2 kHz to 20 kHz, and the fourth vibration generating device 25D configured to vibrate one or more of the second and third upper regions of each of the first and second door interior materials 23D1, 23D2 may be configured to output sound of 2 kHz to 20 kHz or may be configured to output sound of 150 Hz to 20 kHz. For example, the fourth vibration generating device 25D configured to vibrate one or more of the second and third upper regions of at least one of the first and second door interior materials 23D1, 23D2 may be configured to output sound of 2 kHz to 20 kHz or may be configured to output sound of 150 Hz to 20 kHz.

[0419] 34, 35, and 39, the fifth vibration generator 25E according to an embodiment of the present specification may be disposed between the seat frame and the seat interior material 23E, and may be configured to indirectly or directly vibrate the seat interior material 23E to output sound. For example, the fifth vibration generator 25E includes the devices 5 and 6 described with reference to Figs. 27 to 31, and therefore, redundant description thereof may be omitted for brevity. For example, the fifth vibration generator 25E may be expressed by terms such as a seat speaker, a headrest speaker, or a fifth speaker, but the embodiments of the present specification are not limited thereto.

[0420] According to one 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 one embodiment of the present specification, the seat interior material 23E 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.

[0421] 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 23E may include a seat floor interior material 23E1 surrounding the seat floor frame, a seat rear interior material 23E2 surrounding the seat rear frame, and a headrest interior material 23E3 surrounding the headrest frame. At least one of the seat floor interior material 23E1, the seat rear interior material 23E2, and the headrest interior material 23E3 may include a seat interior interior material and a seat exterior interior material. The seat interior interior material may include a foam layer. The seat exterior interior material may include a skin layer including fiber or leather. The seat exterior interior material may further include a base layer of a plastic material that supports the skin layer.

[0422] According to one embodiment of the present specification, the fifth vibration generating device 25E is positioned at least in one of the positions between the seat rear frame and the seat rear interior material 23E2 and between the headrest frame and the headrest interior material 23E3, thereby being able to vibrate at least one of the seat exterior interior materials of the seat rear interior material 23E2 and the seat exterior interior materials of the headrest interior material 23E3.

[0423] According to one embodiment of the present specification, the fifth vibration generating device 25E arranged in at least one of the driver's seat (DS) and the passenger seat (FPS) may be arranged in at least one of between the seat rear frame and the seat rear interior material 23E2 and between the headrest frame and the headrest interior material 23E3.

[0424] According to one embodiment of the present specification, the fifth vibration generator 25E arranged in at least one of the first to third rear passenger seats (RPS1, RPS2, RPS3) may be arranged between the headrest frame and the headrest interior material 23E3. For example, at least one of the first to third rear passenger seats (RPS1, RPS2, RPS3) may include at least one fifth vibration generator 25E arranged between the headrest frame and the headrest interior material 23E3.

[0425] According to one embodiment of the present specification, the fifth vibration generator 25E, which vibrates at least one of the seat rear interior materials 23E2 of the driver's seat (DS) and the passenger seat (FPS), can be configured to output sound of 150 Hz to 20 kHz.

[0426] According to one embodiment of the present specification, the fifth vibration generating device 25E, which vibrates at least one of the headrest interior materials 23E3 of the driver's seat (DS), passenger seat (FPS), and first to third rear passenger seats (RPS1, RPS2, RPS3), can be configured to output sound between 2 kHz and 20 kHz, or can be configured to output sound between 150 Hz and 20 kHz.

[0427] 34 to 36, the sixth vibration generator 25F according to an embodiment of the present specification may be disposed between the handle frame and the handle interior material 23F, and may be configured to indirectly or directly vibrate the handle interior material 23F to output sound. For example, the sixth vibration generator 25F includes the devices 5 and 6 described with reference to Figs. 27 to 31, and therefore, redundant description thereof may be omitted for brevity. For example, the sixth vibration generator 25F may be expressed by terms such as a handle speaker, a steering speaker, or a sixth speaker, but the embodiments of the present specification are not limited thereto.

[0428] According to one embodiment of the present specification, the sixth vibration generator 25F can indirectly or directly vibrate the steering wheel interior material 23F to provide the driver with sound. The sound output by the sixth vibration generator 25F can be the same as or different from the sound output by each of the first to fifth vibration generators 25A to 25E. For example, the sound output by the sixth vibration generator 25F can be the same as or different from the sound output by at least one of the first to fifth vibration generators 25A to 25E.

[0429] As one embodiment of the present specification, the sixth vibration generator 25F may output a sound that is provided only to the driver. As another embodiment of the present specification, the sound output by the sixth vibration generator 25F and the sounds output by each of the first to fifth vibration generators 25A to 25E may be output in combination with each other. For example, the sound output by the sixth vibration generator 25F and the sounds output by at least one of the first to fifth vibration generators 25A to 25E may be output in combination with each other.

[0430] 34 and 35, the seventh vibration generator 25G may be arranged between a floor panel and a floor interior material 23G, and may be configured to indirectly or directly vibrate the floor interior material 23G to output sound. The seventh vibration generator 25G may be arranged between a floor panel arranged between the front seats (DS, FPS) and the third rear passenger seat (RPS3) and the floor interior material 23G. For example, the seventh vibration generator 25G includes the devices 5 and 6 described with reference to FIGS. 27 to 31, and therefore, the redundant description thereof may be omitted for brevity. For example, the seventh vibration generator 25G may be configured to output sound of 150 Hz to 20 kHz. For example, the seventh vibration generator 25G may be expressed by terms such as a floor speaker, a bottom speaker, an underspeaker, or a seventh speaker, but the embodiments of the present specification are not limited thereto.

[0431] 34 to 38 in combination with FIG. 32, the device 9 according to the ninth embodiment of the present specification may further include a second sound-generating device 25-2 disposed on the interior material 20c exposed to the interior space (IS). For example, the device 9 according to the ninth embodiment of the present specification may include only the second sound-generating device 25-2 instead of the first sound-generating device 25-1, or may include both the first sound-generating device 25-1 and the second sound-generating device 25-2.

[0432] According to an embodiment of the present specification, the interior material 20c may further include a rearview mirror 23H, an overhead console 23I, a rear package interior material 23J, a glove box 23K, and a sun visor 23L.

[0433] The second sound generating device 25-2 according to an embodiment of the present specification may include one or more vibration generating devices 25H to 25L arranged in at least one of the rearview mirror 23H, the overhead console 23I, the rear package interior material 23J, the glove box 23K, and the sun visor 23L. For example, the second sound generating device 25-2 includes at least one of the eighth to twelfth vibration generating devices 25H to 25L, and can thereby output sound of one or more channels.

[0434] 34 to 38, the eighth vibration generator 25H may be arranged on the rearview mirror 23H and configured to indirectly or directly vibrate the rearview mirror 23H to output sound. The eighth vibration generator 25H may be arranged between the mirror housing connected to the main structure 20a and the rearview mirror 23H supported by the mirror housing. For example, the eighth vibration generator 25H includes the devices 5 and 6 described with reference to FIGS. 27 to 31, and therefore, the redundant description thereof may be omitted for brevity. For example, the eighth vibration generator 25H may be configured to output sound of 150 Hz to 20 kHz. For example, the eighth vibration generator 25H may be expressed by terms such as a mirror speaker or an eighth speaker, but the embodiments of the present specification are not limited thereto.

[0435] 35, 36, and 38, the ninth vibration generating device 25I may be disposed in the overhead console 23I and configured to indirectly or directly vibrate a console cover of the overhead console 23I to output sound. According to one embodiment of the present specification, the overhead console 23I 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.

[0436] The ninth vibration generator 25I is disposed between the console box and the console cover of the overhead console 23I, and can vibrate the console cover. For example, the ninth vibration generator 25I is disposed between the console box and the console cover of the overhead console 23I, and can directly vibrate the console cover. For example, the ninth vibration generator 25I includes the devices 5 and 6 described with reference to Figs. 27 to 31, and therefore, the duplicated description thereof may be omitted for brevity. For example, the ninth vibration generator 25I may be configured to output sound of 150 Hz to 20 kHz. For example, the ninth vibration generator 25I may be expressed by terms such as a console speaker, a lighting speaker, or a ninth speaker, but the embodiments of the present specification are not limited thereto.

[0437] The device 9 according to the ninth embodiment of the present specification may further include a central lighting box arranged in a central region of the roof interior material 23C, 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 vibration generating device 25I is further arranged between the central lighting box of the central lighting fixture and the central lighting cover, and can further vibrate the central lighting cover.

[0438] 34 and 35, the tenth vibration generator 25J may be arranged in the rear package interior material 23J and configured to indirectly or directly vibrate the rear package interior material 23J to output sound. The rear package interior material 23J may be arranged behind the first to third rear passenger seats (RPS1, RPS2, RPS3). For example, a part of the rear package interior material 23J may be arranged below the rear glass window 24C.

[0439] The tenth vibration generating device 25J is disposed on the rear surface of the rear package interior material 23J and can vibrate the rear package interior material 23J. For example, the tenth vibration generating device 25J includes the devices 5 and 6 described with reference to Figures 27 to 31, and therefore repeated description thereof may be omitted for brevity. For example, the tenth vibration generating device 25J may be expressed by terms such as a rear speaker or a tenth speaker, but the embodiments of the present specification are not limited thereto.

[0440] According to one embodiment of the present specification, the rear package interior material 23J may include a first region corresponding to the rear of the first rear passenger seat (RPS1), a second region corresponding to the rear of the second rear passenger seat (RPS2), and a third region corresponding to the rear of the third rear passenger seat (RPS3).

[0441] According to an embodiment of the present specification, the tenth vibration generator 25J may be arranged to vibrate at least one or more of the first to third regions of the rear package interior material 23J. For example, the tenth vibration generator 25J may be arranged in each of the first and second regions of the rear package interior material 23J, or in each of the first to third regions of the rear package interior material 23J. For example, the tenth vibration generator 25J may be arranged in at least one or more of the first and second regions of the rear package interior material 23J, or in at least one or more of the first to third regions of the rear package interior material 23J. For example, the tenth vibration generator 25J may be configured to output sound of 150 Hz to 20 kHz. For example, the tenth vibration generators 25J configured to vibrate each of the first to third regions of the rear package interior material 23J may have sound output characteristics that are the same as or different from each other. For example, the tenth vibration generators 25J configured to vibrate at least one of the first to third regions of the rear package interior material 23J can have the same or different sound output characteristics.

[0442] 34 to 36, the eleventh vibration generator 25K may be disposed in the glove compartment 23K and configured to indirectly or directly vibrate the glove compartment 23K to output sound. The glove compartment 23K may be disposed in the dashboard 23A corresponding to the front of the passenger seat (FPS).

[0443] The eleventh vibration generating device 25K is disposed on the inner surface of the glove box 23K and can vibrate the glove box 23K. For example, the eleventh vibration generating device 25K includes the devices 5 and 6 described with reference to Figs. 27 to 31, and therefore, the duplicated description thereof may be omitted for brevity. For example, the eleventh vibration generating device 25K 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 eleventh vibration generating device 25K may be expressed by terms such as a glove box speaker or an eleventh speaker, but the embodiments of the present specification are not limited thereto.

[0444] 36, the twelfth vibration generating device 25L may be disposed in the sun visor 23L and configured to indirectly or directly vibrate the sun visor 23L to output sound. The sun visor 23L may include a first sun visor 23L1 corresponding to the driver's seat (DS) and a second sun visor 23L2 corresponding to the passenger's seat (FPS).

[0445] The twelfth vibration generating device 25L is disposed on at least one of the first sun visor 23L1 and the second sun visor 23L2, and can indirectly or directly vibrate at least one of the first sun visor 23L1 and the second sun visor 23L2. For example, the twelfth vibration generating device 25L includes the devices 5 and 6 described with reference to Figs. 27 to 31, and therefore, a duplicated description thereof may be omitted for brevity. For example, the twelfth vibration generating device 25L may be configured to output sound of 150 Hz to 20 kHz. For example, the twelfth vibration generating device 25L may be expressed by terms such as a sun visor speaker or a twelfth speaker, but the embodiments of the present specification are not limited thereto.

[0446] According to an embodiment of the present specification, at least one of the first sun visor 23L1 and the second sun visor 23L2 may further include a sun visor mirror. In this case, the twelfth vibration generating device 25L may be configured to indirectly or directly vibrate at least one or more sun visor mirrors of the first sun visor 23L1 and the second sun visor 23L2. The twelfth vibration generating device 25L that vibrates the sun visor mirror includes the devices 5 and 6 described with reference to Figures 27 to 31, and therefore a duplicate description thereof may be omitted for the sake of brevity.

[0447] 34 to 38 in combination with Fig. 33, the device 9 according to the ninth embodiment of the present specification may further include a third sound generating device 25-3 disposed on the glass window 20d. For example, the device 9 according to the ninth embodiment of the present specification may include the third sound generating device 25-3 instead of at least one of the first and second sound generating devices 25-1 and 25-2, or may include all of the first to third sound generating devices 25-1, 25-2, and 25-3.

[0448] The third sound generating device 25-3 may include one or more vibration generating devices 25M to 25P arranged on the glass window 20d. For example, the third sound generating device 25-3 may include at least one of the thirteenth to sixteenth vibration generating devices 25M to 25P, thereby being able to output sound of one or more channels. For example, the third sound generating device 25-3 may be expressed by terms such as a window speaker, a transparent sound generating device, a transparent speaker, or an opaque speaker, but the embodiments of the present specification are not limited thereto.

[0449] At least one of the thirteenth to sixteenth vibration generators 25M to 25P according to an embodiment of the present specification may be configured to indirectly or directly vibrate the glass window 20d to output sound. For example, at least one of the thirteenth to sixteenth vibration generators 25M to 25P includes the devices 5 to 8 described with reference to Figures 27 to 33 and is configured to be transparent, translucent, or opaque, so that repeated descriptions thereof may be omitted for the sake of brevity.

[0450] According to an embodiment of the present specification, the glass window 20d may include a front glass window 24A, a side glass window 24B, and a rear glass window 24C. According to an embodiment of the present specification, the glass window may further include a roof glass window 24D. For example, when the device 9 according to the ninth embodiment of the present specification includes the roof glass window 24D, a part of the area of ​​the roof frame and the roof interior material 23C may be replaced with the roof glass window 24D. For example, when the device 9 according to the ninth embodiment of the present specification includes the roof glass window 24D, the third vibration generating device 25C may be configured to indirectly or directly vibrate the edge portion of the roof interior material 23C surrounding the roof glass window 24D to output sound.

[0451] 34 to 36, a thirteenth vibration generating device 25M according to one embodiment of this specification is arranged on the front glass window 24A and can be configured to output sound by self-vibration or to output sound by indirectly or directly vibrating the front glass window 24A.

[0452] According to one embodiment of the present specification, the front glass window 24A may include a first area corresponding to a driver's seat (DS), a second area corresponding to a passenger's seat (FPS), and a third area (or intermediate area) between the first area and the second area.

[0453] According to an embodiment of the present specification, the thirteenth vibration generator 25M may be disposed in at least one of the first to third regions of the front glass window 24A. For example, the thirteenth vibration generator 25M may be disposed in each of the first and second regions of the front glass window 24A, or in each of the first to third regions of the front glass window 24A. For example, the thirteenth vibration generator 25M may be disposed in at least one of the first and second regions of the front glass window 24A, or in at least one of the first to third regions of the front glass window 24A. For example, the thirteenth vibration generators 25M disposed in each of the first to third regions of the front glass window 24A may have the same or different acoustic output characteristics. For example, the thirteenth vibration generators 25M disposed in one or more of the first to third regions of the front glass window 24A may have the same or different acoustic output characteristics. For example, the thirteenth vibration generators 25M may be configured to output sound of 150 Hz to 20 kHz. For example, the thirteenth vibration generating device 25M may be expressed by terms such as a front window speaker or a thirteenth speaker, but the embodiments of the present specification are not limited thereto.

[0454] 35 to 37 and 39, a fourteenth vibration generating device 25N according to one embodiment of this specification can be arranged on the side glass window 24B and configured to output sound by self-vibration or to output sound by indirectly or directly vibrating the side glass window 24B.

[0455] According to one embodiment of the present specification, the side glass window 24B may include a first side glass window (or left front window) 24B1, a second side glass window (or right front window) 24B2, a third side glass window (or left rear window) 24B3, and a fourth side glass window (or right rear window) 24B4.

[0456] According to one embodiment of the present specification, the fourteenth vibration generator 25N may be disposed in at least one of the first to fourth side glass windows 24B1 to 24B4. For example, at least one of the first to fourth side glass windows 24B1 to 24B4 may include at least one fourteenth vibration generator 25N.

[0457] According to an embodiment of the present specification, the fourteenth vibration generator 25N may be arranged on at least one of the first to fourth side glass windows 24B1 to 24B4 and configured to output sound by self-vibration or to indirectly or directly vibrate the corresponding side glass windows 24B1 to 24B4 to output sound. For example, the fourteenth vibration generator 25N may be configured to output sound of 150 Hz to 20 kHz. For example, the fourteenth vibration generators 25N arranged on at least one of the first to fourth side glass windows 24B1 to 24B4 may have the same or different sound output characteristics. For example, the fourteenth vibration generator 25N may be configured to output sound of 150 Hz to 20 kHz. For example, the fourteenth vibration generator 25N may be expressed by terms such as a side window speaker or a fourteenth speaker, but the embodiment of the present specification is not limited thereto.

[0458] Referring to FIG. 34, a fifteenth vibration generating device 25O according to one embodiment of the present specification is disposed on the rear glass window 24C and can be configured to output sound by self-vibration or to output sound by indirectly or directly vibrating the rear glass window 24C.

[0459] According to one embodiment of the present specification, the rear glass window 24C may include a first area corresponding to the rear of the first rear passenger seat (RPS1), a second area corresponding to the rear of the second rear passenger seat (RPS2), and a third area corresponding to the rear of the third rear passenger seat (RPS3).

[0460] According to an embodiment of the present specification, the fifteenth vibration generator 25O may be disposed in each of the first to third regions of the rear glass window 24C. For example, the fifteenth vibration generator 25O may be disposed in at least one of the first to third regions of the rear glass window 24C. For example, the fifteenth vibration generator 25O may be disposed in each of the first and second regions of the rear glass window 24C, or in each of the first to third regions of the rear glass window 24C. For example, the fifteenth vibration generator 25O may be disposed in at least one of the first and second regions of the rear glass window 24C, or in at least one of the first to third regions of the rear glass window 24C. For example, the fifteenth vibration generator 25O may be configured to output sound of 150 Hz to 20 kHz. For example, the fifteenth vibration generators 25O disposed in each of the first to third regions of the rear glass window 24C may have sound output characteristics that are the same as or different from each other. For example, the fifteenth vibration generators 25O arranged in at least one of the first to third regions of the rear glass window 24C may have the same or different sound output characteristics. For example, the fifteenth vibration generators 25O arranged in at least one of the first to third regions of the rear glass window 24C 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 fifteenth vibration generator 25O may be expressed by terms such as a rear window speaker or a fifteenth speaker, but the embodiments of the present specification are not limited thereto.

[0461] Referring to Figure 38, a 16th vibration generating device 25P according to one embodiment of this specification can be placed on a roof glass window 24D and configured to output sound through self-vibration or to output sound by indirectly or directly vibrating the roof glass window 24D.

[0462] The roof glass window 24D according to an embodiment of the present specification may be disposed above the front seats (DS, FPS). For example, the 16th vibration generator 25P may be disposed in a middle area of ​​the roof glass window 24D. For example, the 16th vibration generator 25P may be configured to output sound of 150 Hz to 20 kHz. For example, the 16th vibration generator 25P may be expressed by terms such as a roof window speaker or a 16th speaker, but the embodiment of the present specification is not limited thereto.

[0463] The roof glass window 24D according to other embodiments of the present specification may be disposed above the front seats (DS, FPS), or above the front seats (DS, FPS) and the rear seats (RPS1, RPS2, RPS3). For example, the roof glass window 24D may include a first region corresponding to the front seats (DS, FPS) and a second region corresponding to the rear seats (RPS1, RPS2, RPS3). And, the roof glass window 24D may include a third region between the first region and the second region.

[0464] According to one embodiment of the present specification, the sixteenth vibration generator 25P may be arranged in at least one of the first and second regions of the roof glass window 24D, or may be arranged in at least one of the first to third regions of the roof glass window 24D. For example, the sixteenth vibration generator 25P may be configured to output sound of 150 Hz to 20 kHz. For example, the sixteenth vibration generators 25P arranged in at least one of the first to third regions of the roof glass window 24D may have sound output characteristics that are the same as or different from each other.

[0465] 34 to 36, the device 9 according to the ninth embodiment of the present specification may further include a woofer speaker (WS) arranged in at least one of the dashboard 23A, the door frame, and the rear package interior material 23J.

[0466] The woofer speaker (WS) according to an 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 the embodiment of the present specification is not limited thereto. Therefore, the woofer speaker (WS) can improve the characteristics of the low-frequency band of the sound output to the indoor space by outputting sound of 60 Hz to 150 Hz.

[0467] According to an embodiment of the present specification, the woofer speaker (WS) may be disposed in at least one of the first and second regions of the dashboard 23A. According to an embodiment of the present specification, the woofer speaker (WS) may be disposed in each of the first to fourth door frames of the door frames and exposed to lower regions of each of the first to fourth door interior materials 23D1 to 23D4 of the door interior material 23D.

[0468] According to one embodiment of the present specification, the woofer speaker (WS) may be disposed in at least one of the first to fourth door frames of the door frame and exposed in the lower region of at least one of the first to fourth door interior materials 23D1 to 23D4 of the door interior material 23D. According to another embodiment of the present specification, the woofer speaker (WS) may be disposed in at least one of the first and second regions of the rear package interior material 23J. For example, the fourth vibration generating device 25D disposed in the lower region of each of the first to fourth door interior materials 23D1 to 23D4 may be replaced with a woofer speaker (WS). For example, the fourth vibration generating device 25D disposed in the lower region of at least one of the first to fourth door interior materials 23D1 to 23D4 may be replaced with a woofer speaker (WS).

[0469] Combining Figures 36 and 37 with Figure 32, the device 9 according to the ninth embodiment of the present specification may further include a garnish member 23M covering a portion of the interior material 20c exposed to the interior space (IS), and a fourth sound-generating device 25-4 arranged in the interior material 20c.

[0470] The garnish member 23M may be configured to cover a part of the door interior material 23D exposed to the interior space (IS), but the embodiment of the present specification is not limited thereto. For example, the garnish member 23M may be configured to cover one or more parts of the dashboard 23A, the pillar interior material 23B, and the roof interior material 23C exposed to the interior space (IS).

[0471] The garnish member 23M according to an embodiment of the present specification may include a metal material having material properties suitable for generating sound by vibration, or may include a non-metal material (or a composite non-metal material). For example, the metal material of the garnish member 23M may include any one or more of stainless steel, aluminum (Al), aluminum alloy, magnesium (Mg), magnesium alloy, and magnesium lithium (Mg-Li) alloy, but the embodiment of the present specification is not limited thereto. The non-metal material (or composite non-metal material) of the garnish member 23M may include one or more of plastic, fiber, leather, rubber, wood, cloth, carbon, and paper, but the embodiment of the present specification is not limited thereto. For example, the garnish member 23M may include a metal material having material properties suitable for generating sound in a high-frequency range, but the embodiment of the present specification is not limited thereto. For example, the high-frequency range may have a frequency of 1 kHz or more or 3 kHz or more, but the embodiment of the present specification is not limited thereto.

[0472] The fourth sound generating device 25-4 may include one or more vibration generating devices 25Q disposed between the garnish member 23M and the interior material 20c. For example, the fourth sound generating device 25-4 may include the 17th vibration generating device 25Q. For example, the fourth sound generating device 25-4 or the 17th vibration generating device 25Q may be expressed by terms such as a garnish speaker or a 17th speaker, but the examples of the present specification are not limited thereto.

[0473] The seventeenth vibration generator 25Q according to one embodiment of the present specification is the same or substantially the same as the devices 5 and 6 described with reference to Figures 27 to 31, and therefore a duplicated description thereof may be omitted for the sake of brevity. The seventeenth vibration generator 25Q may be disposed between the interior material 20c and the garnish member 23M, and may be connected or coupled to the garnish member 23M via a coupling member.

[0474] The seventeenth vibration generator 25Q according to an embodiment of the present specification may be configured to indirectly or directly vibrate the garnish member 23M to output sound (S) to the interior space (IS) of the device 9. For example, the seventeenth vibration generator 25Q may be configured to output sound in the high frequency range, but the embodiment of the present specification is not limited thereto.

[0475] Combining FIG. 36 with FIG. 32, the device 9 according to the ninth embodiment of the present specification may further include a fifth sound-generating device 25-5 disposed on the inner surface of the outer covering 20b.

[0476] The fifth sound generating device 25-5 may include one or more vibration generating devices 25R, 25S, 25T arranged between the main structure 20a and one or more of the hood panel 22A, the front fender panel 22B, and the trunk panel 22C. For example, the fifth sound generating device 25-5 includes at least one or more of the eighteenth to twentieth vibration generating devices 25R, 25S, 25T, and can thereby output sound of one or more channels.

[0477] According to an embodiment of the present specification, one or more 18th vibration generating devices 25R may be coupled or connected to an inner surface of the hood panel 22A and configured to indirectly or directly vibrate the hood panel 22A to output sound to the exterior space (OS) of the apparatus 9. For example, one or more 18th vibration generating devices 25R may be configured to be coupled or connected to one or more of a central portion and an edge portion of the inner surface of the hood panel 22A.

[0478] Since the one or more 18th vibration generating devices 25R according to an embodiment of the present specification are the same or substantially the same as the devices 5 and 6 described with reference to Figs. 27 to 31, the repeated description thereof may be omitted for brevity. The one or more 18th vibration generating devices 25R may be connected or coupled to an inner surface of the hood panel 22A through a coupling member. For example, the one or more 18th vibration generating devices 25R may be configured to output sound of 150 Hz to 20 kHz. For example, the one or more 18th vibration generating devices 25R may be expressed by terms such as a hood panel speaker or an 18th speaker, but the embodiments of the present specification are not limited thereto.

[0479] According to an embodiment of the present specification, the one or more 19th vibration generating devices 25S may be connected or coupled to an inner surface of the front fender panel 22B and configured to indirectly or directly vibrate the front fender panel 22B to output sound to the exterior space (OS) of the apparatus 9. For example, the one or more 19th vibration generating devices 25S may be arranged at regular intervals on the inner surface of the front fender panel 22B.

[0480] The one or more 19th vibration generating devices 25S according to an embodiment of the present specification are the same or substantially the same as the devices 5 and 6 described with reference to Figs. 27 to 31, and therefore a duplicated description thereof may be omitted for brevity. The one or more 19th vibration generating devices 25S may be coupled or connected to an inner surface of the front fender panel 22B through a connecting member. For example, the one or more 19th vibration generating devices 25S may be configured to output sound of 150 Hz to 20 kHz. For example, the one or more 19th vibration generating devices 25S may be expressed by terms such as a fender panel speaker or a 19th speaker, but the embodiments of the present specification are not limited thereto.

[0481] According to an embodiment of the present specification, the one or more twentieth vibration generating devices 25T may be coupled or connected to an inner surface of the trunk panel 22C and configured to indirectly or directly vibrate the trunk panel 22C to output sound to the exterior space (OS) of the device 9. For example, the one or more twentieth vibration generating devices 25T may be configured to be coupled or connected to one or more of a central portion and an edge portion of the inner surface of the trunk panel 22C.

[0482] The one or more 20th vibration generating devices 25T according to an embodiment of the present specification are the same or substantially the same as the devices 5 and 6 described with reference to Figs. 27 to 31, and therefore a duplicated description thereof may be omitted for brevity. The one or more 20th vibration generating devices 25T may be coupled or connected to an inner surface of the trunk panel 22C through a connecting member. For example, the one or more 20th vibration generating devices 25T may be configured to output sound of 150 Hz to 20 kHz. For example, the one or more 20th vibration generating devices 25T may be expressed by terms such as a trunk panel speaker or a 20th speaker, but the embodiments of the present specification are not limited thereto.

[0483] Additionally, the fifth sound generating device 25-5 may further include one or more vibration generating devices disposed between one or more of the door inner panel and the door outer panel and the main structure 20a.

[0484] 34-36 in conjunction with FIG. 32, the device 9 according to the ninth embodiment of the present specification may further include an instrument panel device 26 and an infotainment device 27.

[0485] The instrument panel device 26 according to an embodiment of the present specification may be disposed in a first region of the dashboard 23A so as to face the driver's seat (DS). The instrument panel device 26 may include a display (or a first display) 26A disposed in the first region of the dashboard 130A so as to face the driver's seat (DS).

[0486] Since the first display 26A includes any of the devices 1 to 4 described in Figures 1 to 21D, the repeated description thereof may be omitted for brevity. For example, the instrument panel device 26 may output, toward the driver's seat (DS), a sound generated by vibration of a vibrating member (or a display panel) due to vibration of one or more vibration devices 500 included in the first display 26A. For example, the vibration device 500 disposed in the first display 26A of the instrument panel device 26 may be configured to output a sound of 150 Hz to 20 kHz.

[0487] The infotainment device 27 may be disposed in a third area of ​​the dashboard 23A.

[0488] An infotainment device 27 according to an embodiment of the present disclosure may be fixed in an upright position on a third area of ​​the dashboard 23A.

[0489] An infotainment device 27 according to another embodiment of the present specification may be installed in a movably manner in the third region of the dashboard 23A. For example, the infotainment device 27 may be stored or accommodated inside the dashboard 23A when the device 9 is powered off or operated by the vehicle occupant, and may be protruded above the dashboard 23A when the device 9 is powered on or operated by the vehicle occupant.

[0490] The infotainment device 27 according to an embodiment of the present specification may include a display (or a second display) 27A disposed in a third area of ​​the dashboard 23A, and a display lifting device.

[0491] Since the second display 27A includes any of the devices 1 to 4 described in Figures 1 to 21D, the duplicated description thereof may be omitted for brevity. For example, the infotainment device 27 may output, toward the driver's seat (DS), a sound generated by vibration of a vibrating member (or a display panel) due to vibration of one or more vibration devices 500 included in the second display 27A. For example, the one or more vibration devices 500 arranged in the second display 27A of the infotainment device 27 may be configured to output a sound of 150 Hz to 20 kHz.

[0492] The display lifting device is disposed inside the third region of the dashboard 23A and can support the second display 27A so that it can be raised and lowered. For example, the display lifting device can raise the second display 27A to protrude above the dashboard 23A when the device 9 is powered on or when the vehicle occupant operates it. Then, the display lifting device can lower the second display 27A to be stored or accommodated inside the dashboard 23A when the device 9 is powered off or when the vehicle occupant operates it.

[0493] 32 to 39, the device 9 according to the ninth embodiment of the present specification outputs sound (S) to one or more of the interior space (IS) and the exterior space (OS) through at least one of the first sound-generating device 25-1 arranged between the main structure 20a and the interior material 20c, the second sound-generating device 25-2 arranged on the interior material 20c exposed to the interior space (IS), the third sound-generating device 25-3 arranged on the glass window 20d, the fourth sound-generating device 25-4 arranged on the garnish member 23M, and the fifth sound-generating device 25-5 arranged on the exterior material 20b. This makes it possible to output sound (S) using one or more of the exterior material 20b and the interior material 20c as acoustic diaphragms, and to output multi-channel surround stereophonic sound. The device 9 according to the ninth embodiment of this specification can output sound by using at least one or more display panels of at least one or more displays 26A, 27A of the instrument panel device 26 and the infotainment device 27 as an acoustic diaphragm, and can output even more realistic multi-channel surround stereo sound via the first to fourth sound generating devices 25-1, 25-2, 25-3, 25-4 and the instrument panel device 26 and the infotainment device 27, respectively.

[0494] Additionally, referring to Fig. 34, the device 9 according to the ninth embodiment of the present specification may further include a sound bar 28 disposed on the rear package interior material 23J. The sound bar 28 may be configured to output sound in conjunction with the infotainment device 27. The sound bar 28 includes any one of the devices 3 and 4 according to the third embodiment or fourth embodiment of the present specification described with reference to Figs. 22 to 26, and therefore repeated description thereof may be omitted for brevity.

[0495] Fig. 40 is a diagram showing a comparison between the peak response speed of a device according to an embodiment of the present specification and the peak response speed of a device according to an experimental example. In Fig. 40, the horizontal axis (e.g., X-axis) represents frequency (Hz), and the vertical axis (e.g., Y-axis) represents response speed (Responsed; m / s / V (voltage)). The thick solid line in Fig. 40 shows the peak response speed of a device according to an embodiment of the present specification in which a vibration device is configured on the curved surface of the support part, and the solid line shows the peak response speed of an experimental example in which a vibration device is configured on the flat back surface of the cover member.

[0496] 40, the thick solid line has a higher peak response speed at about 200 Hz compared to the solid line. For example, the peak response speed of the thick solid line is about 10 times higher at about 200 Hz compared to the peak response speed of the solid line.

[0497] Therefore, according to the embodiments of the present specification, by configuring a vibration device on the curved surface portion of the support part, it is possible to provide an apparatus including a vibration device in which the acoustic characteristics in the low-frequency range are improved by increasing the response speed in the low-frequency range.

[0498] Fig. 41 is a diagram showing a comparison between the acoustic output characteristics of a device according to an embodiment of the present specification and the acoustic output characteristics of a device according to an experimental example. In Fig. 41, the horizontal axis (e.g., X-axis) represents frequency (Hz), and the vertical axis (e.g., Y-axis) represents sound pressure (SPL, dB). The thick solid line in Fig. 41 shows the sound pressure characteristics of a device according to an embodiment of the present specification in which a vibration device is configured on the curved surface of the support part, and the dotted line shows the sound pressure characteristics of a device according to an experimental example in which a vibration device is configured on the flat back surface of the cover member.

[0499] As can be seen from Fig. 41, the thick solid line indicates a higher sound pressure at approximately 200 Hz compared to the dotted line. For example, the sound pressure at approximately 200 Hz of the thick solid line is about 15 dB higher than that of the dotted line.

[0500] Therefore, according to the embodiments of the present specification, by configuring a vibration device on the curved portion of the support part, it is possible to provide an apparatus including a vibration device in which the acoustic characteristics and / or sound pressure characteristics in the low-frequency range are improved by increasing the sound pressure in the low-frequency range.

[0501] Fig. 42 is a diagram showing a comparison between the acoustic output characteristics of the device according to the first embodiment of the present specification and the acoustic output characteristics of the device according to the experimental example. In Fig. 42, the horizontal axis (e.g., X-axis) represents frequency (Hz), and the vertical axis (e.g., Y-axis) represents sound pressure (SPL, dB). The thick solid line in Fig. 42 shows the sound pressure characteristics of the device according to an embodiment of the present specification in which the vibration device is configured in an area spaced above the longitudinal (vertical) center line of the cover member, and the solid line shows the sound pressure characteristics of the device according to the experimental example in which the vibration device is configured on the longitudinal (vertical) center line of the cover member.

[0502] As can be seen from Fig. 42, the thick solid line indicates a higher sound pressure at approximately 250 Hz or less than the solid line. For example, the thick solid line indicates a sound pressure increase of about 2 dB at approximately 100 Hz compared to the sound pressure of the solid line.

[0503] Therefore, according to the embodiments of the present specification, by configuring a vibration device in an area spaced above the longitudinal (vertical) center line of the cover member, it is possible to provide an apparatus including a vibration device in which the acoustic characteristics and / or sound pressure characteristics in the low-frequency range are improved by increasing the sound pressure in the low-frequency range.

[0504] An apparatus according to one or more embodiments of the present disclosure can be described as follows.

[0505] An apparatus according to embodiments herein may include a vibrating member, a support on a rear surface of the vibrating member and having a curved portion, and a vibrating device on the curved portion and facing the rear surface of the vibrating member.

[0506] According to one or more embodiments of the present disclosure, the vibration device includes a film-type vibration device, which can be bent into a curved shape by the curved surface of the curved portion.

[0507] According to one or more embodiments herein, the support may include one or more of a metal material, a plastic material, and an elastic material.

[0508] According to one or more embodiments of the present disclosure, the device may further include a gap space provided by the support between a rear surface of the vibration member and the vibration device.

[0509] According to one or more embodiments herein, the support may include a pair of support bars arranged side by side on a rear surface of the vibration member and having curved portions.

[0510] According to one or more embodiments herein, the vibration member may include one or more holes overlapping the vibration device, and the one or more holes may be between a pair of support bars.

[0511] According to one or more embodiments of the present specification, the support portion may include a pair of first support members arranged side by side on a rear surface of the vibration member and having a curved portion, and a pair of second support members located between the pair of first support members.

[0512] According to one or more embodiments herein, the vibration member may include one or more holes overlapping with the vibration device, and one hole may be surrounded by a pair of first support members and a pair of second support members.

[0513] According to one or more embodiments herein, the distance between a center portion of the vibration device and the vibration member can be different from the distance between an edge portion of the vibration device and the vibration member.

[0514] According to one or more embodiments herein, the vibration device may include a plate coupled to the curved portion and a vibration generator coupled to the plate.

[0515] According to one or more embodiments herein, a vibration generator may include a vibration layer including a piezoelectric material, a first electrode layer on a first surface of the vibration layer, and a second electrode layer on a second surface of the vibration layer that is different from the first surface.

[0516] According to one or more embodiments of the present specification, the vibration generator may include a vibration layer including a plurality of inorganic material portions and one or more organic material portions between the plurality of inorganic material portions, a first electrode layer on a first surface of the vibration layer, and a second electrode layer on a second surface different from the first surface of the vibration layer.

[0517] According to one or more embodiments herein, the plate may include one or more of the following materials: metal, plastic, wood, rubber, paper, fiber, cloth, carbon, and leather.

[0518] According to one or more embodiments herein, the vibration device may further include a weight member on a back surface of the vibration generator.

[0519] According to one or more embodiments herein, the vibrating member may include one or more of a display panel having pixels configured t...

Claims

1. A vibrating member; A support portion on a rear surface of the vibration member and having a curved surface portion; a vibration device located on the curved surface portion and facing the rear surface of the vibration member; Including, the support portion includes a pair of support bars arranged side by side on a rear surface of the vibration member and having the curved surface portion, The vibration member includes one or more holes overlapping the vibration device. Device.

2. The vibration device includes a film-type vibration device, The device according to claim 1 , wherein the film-type vibration device is bent into a curved shape by the curved surface of the curved portion.

3. The device of claim 1 , wherein the support comprises one or more of a metal material, a plastic material, and an elastic material.

4. The apparatus of claim 1 , further comprising a gap space provided by the support between a rear surface of the vibration member and the vibration device.

5. The apparatus of claim 1 , wherein the one or more holes are between the pair of support bars.

6. A vibrating member; A support portion on a rear surface of the vibration member and having a curved surface portion; a vibration device located on the curved surface portion and facing the rear surface of the vibration member; Including, The support portion is a pair of first support members arranged side by side on a rear surface of the vibration member and having the curved surface portion; and a pair of second support members between the pair of first support members; 13. An apparatus comprising:

7. The vibration member includes one or more holes overlapping the vibration device, The apparatus of claim 6 , wherein the one or more holes are surrounded by the first pair of support members and the second pair of support members.

8. 7. The apparatus of claim 1 or 6, wherein the distance between a center portion of the vibration device and the vibration member is different from the distance between an edge portion of the vibration device and the vibration member.

9. The vibration device is A plate connected to the curved surface portion; a vibration generator coupled to the plate; 10. The apparatus of claim 1 or 6, comprising:

10. The vibration generator includes: A vibration layer including a piezoelectric material; a first electrode layer on a first surface of the vibration layer; 10. The apparatus of claim 9, further comprising a second electrode layer on a second surface of the vibration layer that is different from the first surface.

11. The vibration generator includes: a vibration layer including a plurality of inorganic material portions and one or more organic material portions between the plurality of inorganic material portions; a first electrode layer on a first surface of the vibration layer; 10. The apparatus of claim 9, further comprising a second electrode layer on a second surface of the vibration layer that is different from the first surface.

12. 10. The apparatus of claim 9, wherein the plate comprises one or more of the following materials: metal, plastic, wood, rubber, paper, fiber, cloth, carbon, and leather.

13. The apparatus of claim 9 , wherein the vibration device further comprises a weight member on a back surface of the vibration generator.

14. 10. The device of claim 1 or 6, wherein the vibrating member comprises one or more of a display panel having pixels configured to display an image, a screen panel onto which an image is projected from a display device, a light emitting diode lighting panel, an organic light emitting lighting panel, an inorganic light emitting lighting panel, and a signage panel, or comprises one or more of the following materials: metal, wood, rubber, plastic, glass, fiber, cloth, paper, mirror, carbon, and leather.

15. The vibration member is A display member including a display panel configured to have pixels for displaying an image; A cover member on the back surface of the display member; Including, The support portion is connected to a rear surface of the cover member, The display member is configured to vibrate due to the vibration of the vibration device and output sound.

10. Apparatus according to claim 1 or 6.

16. 15. The device of claim 14, wherein the display panel is one of a liquid crystal display panel, a light-emitting display panel, an electrophoretic display panel, a micro light-emitting diode display panel, an electrowetting display panel, and a quantum dot light-emitting display panel.

17. the vibration member further includes a backlight between the display panel and the cover member; the vibration device is configured to vibrate the backlight; The display panel is configured to vibrate in response to the vibration of the backlight and output sound.

16. The apparatus of claim 15.

18. A vibration member; A base member disposed on a rear surface of the vibration member; a support portion having a pair of support bars connected to a rear surface of the base member; a vibration device on the pair of support bars and having a curved surface; a gap space provided between the rear surface of the vibration member and the vibration device; Including, The base member includes one or more holes that overlap the vibration device. Device.

19. The apparatus of claim 18 , wherein the vibration device comprises a film-type vibration device.

20. 20. The apparatus of claim 18, wherein the support comprises one or more of a metal material, a plastic material, and an elastic material.

21. A vibration member; A base member disposed on a rear surface of the vibration member; a support portion having a pair of support bars connected to a rear surface of the base member; a vibration device on the pair of support bars and having a curved surface; a gap space provided between the rear surface of the vibration member and the vibration device; Including, The support portion further includes another pair of support bars between the pair of support bars. Device.

22. The vibration device is A plate connected to the support; a vibration generator coupled to the plate; 20. The apparatus of claim 18, comprising:

23. The vibration generator includes: A vibration layer including a piezoelectric material; a first electrode layer on a first surface of the vibration layer; 23. The apparatus of claim 22, further comprising a second electrode layer on a second surface of the vibration layer that is different from the first surface.

24. The vibration generator includes: a vibration layer including a plurality of inorganic material portions and one or more organic material portions between the plurality of inorganic material portions; a first electrode layer on a first surface of the vibration layer; 23. The apparatus of claim 22, further comprising a second electrode layer on a second surface of the vibration layer that is different from the first surface.

25. 23. The apparatus of claim 22, wherein the plate comprises one or more of the following materials: metal, plastic, wood, rubber, paper, fiber, cloth, carbon, and leather.

26. A passive vibration member; a vibration generating device coupled to the passive vibration member and configured to vibrate the passive vibration member; Including, The vibration generating device comprises a device according to any one of claims 18 to 25.

27. 27. The apparatus of claim 26, wherein the passive vibration member comprises one or more of the following materials: metal, plastic, wood, rubber, paper, fiber, cloth, leather, glass, carbon, and mirror.

28. 27. The apparatus of claim 26, wherein the passive vibration member comprises one or more of a display panel configured with pixels for displaying an image, a screen panel onto which an image is projected from a display device, a light emitting diode lighting panel, an organic light emitting lighting panel, an inorganic light emitting lighting panel, a signage panel, an interior material of a vehicle, an exterior material of a vehicle, a glass window of a vehicle, a seat interior 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, and a mirror.

29. The passive vibration member is an interior material of a vehicle, The interior materials of the vehicle include at least one of a dashboard, a filler interior material, a roof interior material, a door interior material, a seat interior material, a handle interior material, a floor interior material, a rear package interior material, a rearview mirror, an overhead console, a glove box, and a sun visor; 27. The apparatus of claim 26, wherein the vibration generating device is configured to vibrate at least one or more of the dashboard, the filler interior material, the roof interior material, the door interior material, the seat interior material, the steering wheel interior material, the floor interior material, the rear package interior material, the rearview mirror, the overhead console, the glove box, and the sun visors.

30. a display member including a display panel having pixels configured to display an image; A support portion on a rear surface of the display member and having a curved surface portion; a vibration device located on the curved surface portion and facing the back surface of the display member; A cover member on the back surface of the display member; Including, The support portion is connected to a rear surface of the cover member, The display member is configured to vibrate due to the vibration of the vibration device and output sound. Device.

31. Vehicle interior materials; a vibration generating device coupled to an interior material of the vehicle and configured to vibrate the interior material of the vehicle; Including, The vibration generating device includes a device according to any one of claims 18 to 25.

Images