Device for outputting vibrations

Abstract

An apparatus for outputting vibration can include a passive vibration member, a support member overlapping the passive vibration member, and a vibration device between the passive vibration member and the support member, the vibration device configured to include a first active vibration member and a second active vibration member connected to each other and intersecting each other. The first active vibration member can be connected to a first member of one of the passive vibration member and the support member, and the second active vibration member can be connected to a second member of the other of the passive vibration member and the support member.

Description

[0001] Intersection of related applications

[0002] This application claims the benefit and priority of Japanese Patent Application No. 2021-214305, filed on December 28, 2021, the entire contents of which are incorporated herein by reference for all purposes. Technical Field

[0003] This disclosure relates to means for outputting vibrations, and more particularly, by way of example and without limitation, to means for outputting sound. Background Technology

[0004] A standalone loudspeaker or sound device can be used to provide sound. A sound device can include a vibrating system that converts an input electrical signal into physical vibrations. Piezoelectric loudspeakers, including those made of ferroelectric ceramics, are lightweight and have low power consumption, and are therefore suitable for a wide variety of applications.

[0005] In piezoelectric devices used in piezoelectric loudspeakers, the minimum resonant frequency increases due to high rigidity, resulting in insufficient sound pressure level in the low-pitched sound band. Therefore, piezoelectric loudspeakers suffer from the technical problem of insufficient sound pressure level in the low-pitched sound band, and consequently, devices including piezoelectric loudspeakers suffer from the technical problem of insufficient sound pressure level in the low-pitched sound band.

[0006] The descriptions provided in the Background section should not be construed as prior art simply because they are mentioned in or associated with this section. The Background section may include information describing one or more aspects of the subject matter art, and the descriptions in this section do not limit the invention. Summary of the Invention

[0007] The inventors of this disclosure have recognized the problems and shortcomings of the prior art and have invented a device that includes a new vibration mechanism that can enhance the sound pressure level of low-pitched vocal cords.

[0008] One aspect of this disclosure relates to providing an apparatus for outputting sound, wherein the sound pressure level of a low-pitched vocal cord is enhanced.

[0009] Another aspect of this disclosure relates to providing a sound device and an apparatus including the sound device, which can enhance the sound pressure level of low-pitched vocal cords.

[0010] Another aspect of this disclosure relates to providing a vibration device and an apparatus including the vibration device, which can output a sound with an enhanced sound pressure level having a low-pitched vocal cord based on the vibration of a flexible vibrating member.

[0011] Therefore, embodiments of this disclosure relate to an apparatus that substantially eliminates one or more problems caused by limitations and disadvantages of the related art.

[0012] Additional features, advantages, and aspects of this disclosure will be set forth in this disclosure and will also be apparent from this disclosure, or may be learned by practicing the inventive concepts provided herein. Other features, advantages, and aspects of this disclosure may be realized and obtained through the description provided in or derived therefrom, the claims of the invention, and the accompanying drawings.

[0013] To achieve these and other aspects and advantages of this disclosure, as embodied and broadly described herein, an apparatus for outputting vibration may include: a passive vibrating member; a support member overlapping the passive vibrating member; and a vibration device between the passive vibrating member and the support member, the vibration device being configured to include a first active vibrating member and a second active vibrating member connected to and intersecting each other. The first active vibrating member may be connected to a first member of either the passive vibrating member or the support member, and the second active vibrating member may be connected to a second member of the other of the passive vibrating member and the support member.

[0014] On the other hand, a device for outputting vibration may include: a passive vibrating member; a support member overlapping the passive vibrating member; and a plurality of vibrating devices disposed between the passive vibrating member and the support member. Each of the plurality of vibrating devices may include: a plurality of active vibrating members arranged to intersect each other at an intersection; and a plurality of adhesive members, each adhesive member disposed between two adjacent active vibrating members at the intersection. The plurality of active vibrating members may be divided into a first group and a second group, each group including one or more active vibrating members. One or more active vibrating members in the first group may be connected to the support member, and one or more active vibrating members in the second group may be connected to the passive vibrating member.

[0015] According to one or more embodiments of this disclosure, an apparatus for outputting a sound with an enhanced sound pressure level having a low-pitched vocal cord can be provided.

[0016] According to one or more embodiments of this disclosure, an apparatus for enhancing the sound pressure level of low-pitched vocal cords can be provided.

[0017] According to one or more embodiments of this disclosure, an apparatus may be provided for outputting a sound with an enhanced sound pressure level having a low-pitched vocal cord based on the vibration of a flexible passive vibrating member.

[0018] Other systems, methods, features and advantages will be or will become apparent to one with skill in the art upon examination of the following drawings and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the disclosure, and be protected by the following claims. Nothing in this section should be taken as a limitation on those claims. Additional aspects and advantages are discussed below in conjunction with the embodiments of the disclosure.

[0019] It is to be understood that the foregoing description and the following description of the disclosure are exemplary and explanatory, and are intended to provide further explanation of the disclosure as claimed. BRIEF DESCRIPTION OF DRAWINGS

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

[0021] Figure 1 An apparatus according to embodiments of the disclosure is shown.

[0022] Figure 2 is a cross-sectional view taken along the line I-I’ shown in Figure 1

[0023] Figure 3 is an exploded perspective view of an apparatus according to embodiments of the disclosure shown in Figure 1

[0024] Figure 4 A vibration model of an apparatus according to embodiments of the disclosure is shown.

[0025] Figure 5 A displacement width (or displacement amount) of a vibration apparatus based on a driving signal applied to Figure 2 and Figure 3 first and second active vibration members shown in

[0026] Figure 6 is another cross-sectional view taken along the line I-I’ shown in Figure 1

[0027] Figure 7 A vibration apparatus according to another embodiment of the disclosure shown in Figure 6

[0028] Figure 8 A vibrator apparatus according to another embodiment of the disclosure shown in Figure 6 ​​​​​

[0029] Figure 9 is a perspective view of a vibration device shown in FIG. 1. Figure 1 is an exploded perspective view of a device according to another embodiment of the disclosure shown in FIG. 2.

[0030] Figure 10 is another sectional view taken along line I-I' shown in FIG. 3. Figure 1

[0031] Figure 11 is a plan view of a vibration device according to another embodiment of the disclosure shown in FIG. 4. Figure 10

[0032] Figure 12 is a perspective view of a vibration device shown in FIG. 5. Figure 10 and Figure 11 is a perspective view of a vibration device shown in FIG. 6.

[0033] Figure 13 is another sectional view taken along line I-I' shown in FIG. 7. Figure 1

[0034] Figure 14 is a plan view of a vibration device shown in FIG. 8. Figure 13

[0035] Figure 15 is another sectional view taken along line I-I' shown in FIG. 9. Figure 1

[0036] is a graph showing output characteristics of a low-pitched sound band of a device according to an embodiment of the disclosure and a device according to an experimental example. Figure 16

[0037] Throughout the drawings and the specific embodiments, the same reference numerals should be understood to refer to the same element, feature, and structure. The size, length, and thickness of layers, regions, and elements and the depiction of the same can be exaggerated for clarity, illustration, and convenience. DETAILED DESCRIPTION

[0038] Reference will now be made in detail embodiments of the disclosure, examples of which can be illustrated in the accompanying drawings. In the following description, when it is determined that a detailed description of a well-known function or configuration related to the present document can unnecessarily obscure the aspects of the disclosure, a detailed description thereof can be omitted for the sake of brevity. The progress of the described processing steps and / or operations is one example; however, the order of steps and / or operations is not limited to the order of steps and / or operations set forth herein and can be changed, except for steps and / or operations that must occur in a particular order.

[0039] ​​​​​Unless otherwise indicated, like reference numerals can refer to like elements throughout the various drawings - even if the like reference numerals are shown in different drawings. In one or more aspects, like elements (or elements with the same name) in different drawings can have the same or substantially the same function and / or structure, unless context dictates otherwise. The names of individual elements used in the following description are merely chosen for the convenience of the reader and, therefore can not be the names of the elements used in the actual product.

[0040] Advantages and features of the present disclosure and methods of accomplishing the same can be understood more readily by reference to the following description of embodiments and claims in conjunction with the accompanying drawings. The present disclosure may, however, be embodied in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete and will fully convey the inventive concept to those skilled in the art, and no limitation of the scope of the present disclosure is intended by reference to the specific embodiments illustrated in the figures and described below.

[0041] The shapes, sizes, regions, ratios, angles, and numbers disclosed in the accompanying drawings for describing embodiments of the present disclosure are merely examples and, therefore, the present disclosure is not limited to the illustrated details.

[0042] When the terms "comprise", "have", "include", "contain", "consist of", "consist", "comprise", and the like are used, one or more other elements can be added unless terms such as "only" or the like are used. The terms used in the present disclosure are used only to describe specific embodiments and are not intended to limit the scope of the present disclosure. The terms used herein are used only to describe exemplary embodiments and are not intended to limit the scope of the present disclosure. Unless the context clearly indicates otherwise, the singular form of the term can include the plural form. The word "exemplary" is used to mean serving as an example, or illustration. Embodiments are exemplary embodiments. Aspects are exemplary aspects. Any implementation described herein as "example" is not necessarily to be construed as preferred or advantageous over other implementations.

[0043] In one or more aspects, elements, features, or related information (e.g., levels, ranges, dimensions, sizes, etc.) are interpreted to include a range of error or tolerance, even if an explicit description of such a range of error or tolerance is not provided. The range of error or tolerance can be caused by various factors, such as process factors, internal or external influences, noise, etc. In addition, the term "may" includes all the meanings of the term "can".

[0044] In describing a position relationship, when a position relationship between two parts is described using, for example, “upper”, “above”, “below”, “on top of”, “under”, “beneath”, “adjacent”, “close to”, “near”, “next to”, “beside”, “proximate”, and the like, one or more other parts can be located between the two parts, unless a more limiting term such as “immediately”, “directly”, or “close” is used. For example, when one structure is described as positioned relative to another structure as “upper”, “above”, “below”, “on top of”, “under”, “beneath”, “adjacent”, “close to”, “near”, “next to”, or “proximate”, the description should be interpreted to include cases where the structures are in contact with each other as well as cases where one or more additional structures are disposed or interposed between them. In addition, the terms “front”, “back”, “rear”, “left”, “right”, “top”, “bottom”, “down”, “up”, “upper”, “lower”, “above”, “below”, “row”, “column”, “vertical”, “horizontal”, and the like refer to any reference frame.

[0045] In describing a time relationship, when a time sequence is described as, for example, “after”, “subsequently”, “next”, “before”, “in front of”, “prior to”, and the like, discontinuous or non-sequential cases can be included, unless a more limiting term such as “just”, “immediately”, or “exactly” is used.

[0046] It should be understood that although the terms “first”, “second”, and the like can be used herein to describe various elements, such elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of the present disclosure. Furthermore, the first element, the second element, and the like can be named arbitrarily according to the convenience of those skilled in the art, without departing from the scope of the present disclosure. The terms “first”, “second”, and the like can be used to distinguish components from each other, but the functions or structures of the components are not limited by the ordinal number or the component name in front of the components.

[0047] In describing the elements of the present disclosure, the terms “first”, “second”, “A”, “B”, “(a)”, “(b)”, and the like can be used. These terms are intended to identify respective elements from other elements, and they are not used to limit the nature, basis, order, or number of the elements.

[0048] The expressions “connected,” “coupled,” “attached,” or “bonded” of one element or layer to another element or layer can mean that the element or layer is directly connected, coupled, attached, or bonded to the other element or layer, or that the element or layer is indirectly connected, coupled, attached, or bonded to the other element or layer with one or more intervening elements or layers therebetween, unless otherwise specified.

[0049] The expressions “contacted,” “overlapped,” or the like of one element or layer to another element or layer can mean that the element or layer is directly contacted, overlapped, or the like to the other element or layer, or that the element or layer is indirectly contacted, overlapped, or the like to the other element or layer with one or more intervening elements or layers therebetween, unless otherwise specified.

[0050] The terms such as “line” or “direction” should not be interpreted based only on the geometric relationship that the respective lines or directions are parallel or perpendicular to each other, and can mean lines or directions having a wider directionality within a range in which components of the disclosure are capable of functioningally operating.

[0051] The term “at least one” should be understood to include any and all combinations and all combinations of one or more of the listed items. For example, the meaning of “at least one of a first item, a second item, and a third item” indicates a combination of two or more of the first item, the second item, and the third item, as well as only one of the first item, the second item, or the third item.

[0052] The expression of a first element, a second element, and / or a third element should be understood to mean one of the first element, the second element, and the third element, or any combination or all combinations of the first element, the second element, and the third element. By way of example, A, B, and / or C can mean only A; only B; only C; any combination or some combination of A, B, and C; or all of A, B, and C. In addition, the expression “element A / element B” can be understood as element A and / or element B.

[0053] In one or more aspects, the terms “between” and “among” can be used interchangeably for convenience, unless otherwise specified. For example, the expression “between a plurality of elements” can be understood as among the plurality of elements. In another example, the expression “among a plurality of elements” can be understood as between the plurality of elements. In one or more examples, the number of elements can be two. In one or more examples, the number of elements can be more than two.

[0054] In one or more aspects, the phrases "each other" and "one another" can be used interchangeably for convenience unless otherwise noted. For example, the expression "different from each other" can be understood as different from one another. In another example, the expression "different from one another" can be understood as different from each other. In one or more examples, the number of elements involved in the aforementioned expressions can be two. In one or more examples, the number of elements involved in the aforementioned expressions can be more than two.

[0055] In one or more aspects, the phrases "one or more of" and "one or more" can be used interchangeably for convenience unless otherwise noted.

[0056] Features of various implementations of the present disclosure can be coupled or combined in part or whole, and can interoperate, link, or drive in various ways. Implementations of the present disclosure can be implemented independently of each other, or can be implemented together in interdependent or related relationships. In one or more aspects, components of each device according to various implementations of the present disclosure are operatively coupled and configured.

[0057] Unless otherwise defined, the terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which example implementations belong. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0058] Hereinafter, implementations of the present disclosure are described in detail with reference to the accompanying drawings. With respect to reference numerals of elements in each of the drawings, the same elements can be shown in other drawings, and the same reference numerals can refer to the same elements unless otherwise specified. Also, for convenience of description, the proportions, sizes, and thicknesses of each element shown in the drawings are different from actual proportions, sizes, and thicknesses, and thus implementations of the present disclosure are not limited to the proportions, sizes, and thicknesses shown in the drawings.

[0059] Figure 1 A device according to an implementation of the present disclosure is shown. Figure 2 is a cross-sectional view taken along Figure 1 the line I-I'. Figure 3 is a perspective view showing a device according to Figure 1 an implementation of the present disclosure shown in FIG. 1.

[0060] Referring to Figures 1 to 3According to embodiments of the disclosure, the device can include a passive vibration member 100, a support member 300 overlapping the passive vibration member 100, and a vibration device 500 connected between the passive vibration member 100 and the support member 300.

[0061] According to embodiments of the disclosure, the device can be a flexible display device, a sound emitting device, a sound bar, a simulated signboard, or a digital signboard, etc., but embodiments of the disclosure are not limited thereto.

[0062] The flexible display device can include a wearable device, a foldable device, a rollable device, a bendable device, a transformable device, or a flexible device, etc., but embodiments of the disclosure are not limited thereto. The simulated signboard can be an advertising signboard, a poster, a bulletin board, etc. The simulated signboard can include signboard content such as a sentence, a picture, and a logo, etc. The signboard content can be provided to be visible at the passive vibration member 100 of the device. For example, the signboard content can be directly attached on the passive vibration member 100, and the signboard content can be printed on a medium such as paper, etc., and the medium can be attached on the passive vibration member 100.

[0063] The passive vibration member 100 can vibrate based on driving (or vibration or displacement) of the vibration device 500. For example, the passive vibration member 100 can generate one or more of vibration and sound based on driving of the vibration device 500. Accordingly, the passive vibration member 100 can be a vibration object, a flexible display panel, a vibration plate, a front cover, a front member, a vibration panel, a sound panel, or a passive vibration panel, but embodiments of the disclosure are not limited thereto.

[0064] The flexible display device can include a flexible display panel including a plurality of pixels for displaying black / white images and / or color images. For example, the flexible display panel can be a flexible organic light emitting display panel, a flexible light emitting diode display panel, a flexible electrophoretic display panel, a flexible electro wetting display panel, a flexible micro light emitting diode display panel, or a flexible quantum dot light emitting display panel, etc., but embodiments of the disclosure are not limited thereto. For example, in the flexible organic light emitting display panel, the pixel can include an organic light emitting device such as an organic light emitting layer, etc., and the pixel can be, or can include a sub-pixel implementing any one of a plurality of colors constituting a color image. For example, the passive vibration member 100 can be a vibration panel of an advertising object or a vibration panel of a signboard. For example, the advertising object can be a photo frame, a poster, a standing signboard, and content of a signboard, but embodiments of the disclosure are not limited thereto.

[0065] The passive vibration member 100 can include a material that is relatively light and flexible compared to the support member 300. For example, the passive vibration member 100 according to an embodiment of the disclosure can include one or more materials among wood, rubber, plastic, flexible glass, fiber, cloth, paper, flexible metal, carbon, mirror, and leather, or a combination thereof, but embodiments of the disclosure are not limited thereto.

[0066] The support member 300 can include at least one or more among a glass material, a metal material, and a plastic material. For example, the support member 300 can include a stacked structure in which at least one or more among a glass material, a plastic material, and a metal material is stacked. For example, the support member 300 can include a material having a relatively high rigidity or a high hardness compared to the passive vibration member 100. For example, the support member 300 can be a rear structure, a support structure, a support plate, a support cover, a rear cover, or a rear member, but embodiments of the disclosure are not limited thereto.

[0067] The support member 300 can be disposed to overlap the passive vibration member 100. The support member 300 can be disposed below the passive vibration member 100. The support member 300 can cover a rear surface of the passive vibration member 100. For example, the support member 300 can cover the entire rear surface of the passive vibration member 100 with a gap space GS and the vibration device 500 therebetween. The gap space GS can be provided by the coupling member 200 disposed between the passive vibration member 100 and the support member 300 facing each other. The gap space GS can be referred to as an air gap, an accommodation space, a vibration space, or a sound box, but embodiments of the disclosure are not limited thereto. The support member 300 can have the same size as the passive vibration member 100.

[0068] Each of the passive vibration member 100 and the support member 300 can have a square shape or a rectangular shape, but embodiments of the disclosure are not limited thereto, and can have a polygonal shape, a non-polygonal shape, a circular shape, or an elliptical shape. For example, when the device according to another embodiment of the disclosure is applied to a sound device or a soundbar, each of the passive vibration member 100 and the support member 300 can have a rectangular shape in which the length of the long side is two or more times longer than the short side, but embodiments of the disclosure are not limited thereto.

[0069] The coupling member 200 can be configured to be connected between the rear peripheral portion of the passive vibration member 100 and the front peripheral portion of the support member 300, and thus, the gap space GS can be provided between the passive vibration member 100 and the support member 300 facing each other. The coupling member 200 according to the embodiment of the disclosure can include a material having an adhesive property and capable of compression and decompression. For example, the coupling member 200 can include a double-sided tape, a single-sided tape, a double-sided foam tape, or a double-sided adhesive foam pad, but the embodiment of the disclosure is not limited thereto, and the coupling member 200 can be configured as a material (or an elastic material) having an adhesive property and capable of compression and decompression. For example, the coupling member 200 can include an elastic pad such as a rubber pad or a silicone pad.

[0070] The vibration device 500 can be provided between the passive vibration member 100 and the support member 300. The vibration device 500 can be configured to vibrate the passive vibration member 100 based on a composite structure of a 2-degree-of-freedom vibration model. The vibration device 500 can maximize the displacement width (or vibration width) of the passive vibration member 100 based on the composite structure of the 2-degree-of-freedom vibration model, thereby enhancing the sound of the bass sound band generated based on the vibration of the passive vibration element 100.

[0071] The vibration device 500 according to the embodiment of the disclosure can be configured to include two or more active vibration members 510 and 520 connected to each other. For example, they intersect each other. For example, the vibration device 500 can be disposed to intersect each other with respect to the intersection portion 501, and can be configured to include the plurality of active vibration members 510 and 520 connected to each other at the intersection portion 501. Some (or one or more) of the plurality of active vibration members 510 and 520 can be connected to a first member of any one of the passive vibration member 100 and the support member 300, and the other active vibration members 510 and 520 can be connected to a second member of the other of the passive vibration member 100 and the support member 300.

[0072] The vibration device 500 according to the embodiment of the disclosure can include a first active vibration member 510 and a second active vibration member 520 connected to each other. For example, they intersect each other. For example, the vibration device 500 according to the embodiment of the disclosure can be disposed to intersect each other with respect to the intersection portion 501, and can include the first active vibration member 510 and the second active vibration member 520 connected to each other at the intersection portion 501.

[0073] The first active vibration member 510 can be connected to the support member (or the first member) 300. The first active vibration member 510 can include one first vibration means 511 connected to the support member 300.

[0074] The second active vibration member 520 can be connected to the passive vibration member (or second member) 100. The second active vibration member 520 can be disposed between the passive vibration member 100 and the first active vibration member 510. A portion of the second active vibration member 520 can be connected to the first active vibration member 510 at the intersection portion 501 that overlaps the first active vibration member 510.

[0075] The second active vibration member 520 can include a 2-1 active vibration member 520-1 and a 2-2 active vibration member 520-2, each connected to the first active vibration member 510 and each connected to the passive vibration member 100. The 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 can be arranged in a direction intersecting the first active vibration member 510, and can be spaced apart from each other above the first active vibration member 520-1. For example, the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 can be a pair of second active vibration members. In one or more aspects of the disclosure, the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 can be a second active vibration member and a third active vibration member, but embodiments of the disclosure are not limited to the labels such as "2-1" and "2-2". For example, the 2-1 active vibration member 520-1 can be one active vibration member, and the 2-2 active vibration member 520-2 can be another active vibration member.

[0076] The 2-1 active vibration member 520-1 can include a 2-1 vibration device 521, and the 2-2 active vibration member 520-2 can include a 2-2 vibration device 522. For example, the 2-1 vibration device 521 and the 2-2 vibration device 522 can be a pair of second vibration devices. The 2-1 vibration device 521 and the 2-2 vibration device 522 can be arranged in parallel to each other in a direction intersecting the first vibration device 511, and can be spaced apart from each other at the intersection portion 501 above the first vibration device 511. In one or more aspects of the disclosure, the 2-1 vibration device 521 and the 2-2 vibration device 522 can be a second vibration device (or vibration device) and a third vibration device (or vibration device), but embodiments of the disclosure are not limited to the labels such as the numbers "2-1" and "2-2". For example, the 2-1 vibration device 521 can be one vibration device, and the 2-2 vibration device 522 can be another vibration device.

[0077] The first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can each have a quadrilateral shape including a short side and a long side, and for example, can have a rectangular shape. Each of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can have the same length, but embodiments of the present disclosure are not limited thereto. For example, each of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can have the same length within a length that enables arrangement in the gap space GS.

[0078] The first vibration device 511 can be disposed to intersect each of the 2-1 vibration device 521 and the 2-2 vibration device 522. For example, the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can be arranged at intervals of 90 degrees in two dimensions with respect to the intersection portion 501, but embodiments of the present disclosure are not limited thereto. For example, the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can be arranged in a "+" shape or a "X" shape in two dimensions. In this configuration, they are arranged to cross each other.

[0079] Each of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can include a first peripheral portion and a second peripheral portion parallel to the intersection portion (or the central portion) 501 therebetween. The central portion of the first vibration device 511 can overlap the first peripheral portion of each of the 2-1 vibration device 521 and the 2-2 vibration device 522. Accordingly, the central portion of the first vibration device 511 can not overlap the central portion of each of the 2-1 vibration device 521 and the 2-2 vibration device 522, and can be disposed between the central portion of the 2-1 vibration device 521 and the central portion of the 2-2 vibration device 522.

[0080] Each of the first peripheral portion and the second peripheral portion of the first vibration device 511 can be connected to the support member 300. The first peripheral portion of each of the 2-1 vibration device 521 and the 2-2 vibration device 522 can be spaced apart from each other and can be connected to the central portion of the first vibration device 511, respectively. The second peripheral portion of each of the 2-1 vibration device 521 and the 2-2 vibration device 522 can be connected to the passive vibration member 100, respectively.

[0081] Each of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can be a bending displacement type vibration device (or a piezoelectric vibration device). For example, each of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can be a single layer vibration device (or a piezoelectric vibration device) or a stacked type vibration device (or a piezoelectric vibration device), but embodiments of the present disclosure are not limited thereto.

[0082] Each of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can vibrate (or displace or be driven) based on a driving signal input thereto. Each of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can vibrate according to a driving signal applied from the outside based on a piezoelectric effect (or piezoelectric characteristics) with contraction and expansion being alternately repeated. The driving signal can be an alternating current (AC) signal, such as a sound signal, a vibration driving signal, or a voice signal, etc. The 2-1 vibration device 521 and the 2-2 vibration device 522 can vibrate (or displace or be driven) based on the same driving signal. The driving signal applied to the 2-1 vibration device 521 and the 2-2 vibration device 522 can have the same phase (or be in phase) as the driving signal applied to the first vibration device 511, or can have a phase opposite to the phase (or be in anti-phase) of the driving signal applied to the first vibration device 511.

[0083] Each of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 can include one or more piezoelectric devices. The one or more piezoelectric devices can include a piezoelectric layer, one or more first electrodes disposed at a first surface of the piezoelectric layer, and one or more second electrodes disposed at a second surface different from the first surface of the piezoelectric layer. For example, the piezoelectric layer can include a front surface and a rear surface. For example, the first surface of the piezoelectric layer can be a first region of the front surface (or the rear surface) of the piezoelectric layer, and the second surface of the piezoelectric layer can be a second region spaced apart from the first region of the front surface (or the rear surface) of the piezoelectric layer. For example, the first surface of the piezoelectric layer can be the front surface of the piezoelectric layer, and the second surface of the piezoelectric layer can be the rear surface of the piezoelectric layer.

[0084] In each of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522, the piezoelectric device can include a piezoelectric layer. In one or more examples, the piezoelectric layer can include a piezoelectric material of a ceramic-based material capable of achieving a relatively high vibration, or can include a piezoelectric ceramic material having a perovskite-based crystal structure. For example, the piezoelectric layer can be configured as a piezoelectric material containing lead (Pb) or a piezoelectric material not containing lead (Pb). For example, the piezoelectric material containing lead (Pb) can include one or more of a lead zirconate titanate (PZT)-based material, a lead zirconate niobate nickelate (PZNN)-based material, a lead magnesium niobate (PMN)-based material, a lead nickel niobate (PNN)-based material, a lead zirconate niobate (PZN)-based material, or a lead indium niobate (PIN)-based material, but embodiments of the present disclosure are not limited thereto. For example, the piezoelectric material not containing lead (Pb) can include one or more of barium titanate (BaTiO3), calcium titanate (CaTiO3), and strontium titanate (SrTiO3), but embodiments of the present disclosure are not limited thereto. The material of the piezoelectric layer is not limited to the examples described herein.

[0085] The vibration device according to embodiments of the present disclosure can further include one or more adhesive members 551 and a plurality of elastic members 560 and 570. For example, the vibration device according to embodiments of the present disclosure can further include an adhesive member 551, a first elastic member 560, and a second elastic member 570.

[0086] The adhesive member 551 can be disposed between the plurality of active vibration members 510 and 520. For example, the adhesive member 551 can be disposed between the first active vibration member 510 and the second active vibration member 520. For example, the adhesive member 551 can be disposed between the first active vibration member 510 and each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2. For example, the adhesive member 551 can be disposed between the pair of second active vibration members 521 and 522 and the first active vibration member 510. Accordingly, each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 can be connected to the first active vibration member 510 through the adhesive member 551 and thus can receive a vibration (or displacement) of the first active vibration member 510 to vibrate (or displace or drive).

[0087] The adhesive member 551 can be disposed between the first vibration device 511 of the first active vibration member 510 and each of the 2-1 vibration device 521 of the 2-1 active vibration member 520-1 and the 2-2 vibration device 522 of the 2-2 active vibration member 520-2. For example, the adhesive member 551 can be disposed between the pair of second vibration devices 521 and 522 and the first vibration device 511. Accordingly, each of the 2-1 vibration device 521 and the 2-2 vibration device 522 can be connected to the first vibration device 511 by the adhesive member 551, and thus can receive the vibration (or displacement) of the first vibration device 511 to vibrate (or displace or drive).

[0088] The adhesive member 551 according to embodiments of the present disclosure can include a 1-1 adhesive member 551a and a 1-2 adhesive member 551b. For example, the adhesive member 551 can be an adhesive portion, a first adhesive portion, or a first adhesive member. For example, the 1-1 adhesive member 551a and the 1-2 adhesive member 551b can be a pair of adhesive members or a pair of first adhesive members. In one or more aspects of the present disclosure, the 1-1 adhesive member 551a and the 1-2 adhesive member 551b can be a first adhesive member and a second adhesive member, but embodiments of the present disclosure are not limited to the labels such as "1-1" and "1-2".

[0089] The 1-1 adhesive member (or 1-1 adhesive portion) 551a can be adhered between the first peripheral portion of the 2-1 vibration device 521 and the first peripheral portion of the first vibration device 511. The 1-1 adhesive member 551a can be adhered between the first peripheral portion of the 2-1 vibration device 521 and the first side (or first portion) of the central portion of the first vibration device 511. Accordingly, the first peripheral portion of the 2-1 vibration device 521 can be connected to the central portion of the first vibration device 511 by the 1-1 adhesive member 551a, and thus can receive the vibration (or displacement) of the first vibration device 511 to vibrate (or displace or drive).

[0090] The 1-2 adhesive member (or 1-2 adhesive portion) 551b can be adhered between the first peripheral portion of the 2-2 vibration device 522 and the first peripheral portion of the first vibration device 511. The 1-2 adhesive member 551b can be adhered between the first peripheral portion of the 2-2 vibration device 522 and the second side (or second portion) of the central portion of the first vibration device 511. Accordingly, the first peripheral portion of the 2-2 vibration device 522 can be connected to the central portion of the first vibration device 511 by the 1-2 adhesive member 551b, and thus can receive the vibration (or displacement) of the first vibration device 511 to vibrate (or displace or drive). Accordingly, the first peripheral portions of each of the 2-1 vibration device 521 and the 2-2 vibration device 522 can vibrate (or displace or drive) together based on the vibration (or displacement) of the first vibration device 511.

[0091] According to another embodiment of the disclosure, the adhesive member 551 can not be divided into the 1-1 adhesive member 551a and the 1-2 adhesive member 551b, and can be attached at the entire central portion (or intersection portion 501) of the first vibration device 511. Accordingly, the first peripheral portion of the 2-1 vibration device 521 and the first peripheral portion of the 2-2 vibration device 522 can be commonly connected to the adhesive member 551 disposed at the entire (or all) central portion (or intersection portion 501) of the first vibration device 511, and can be spaced apart from each other above the adhesive member 551.

[0092] The adhesive members 551, 551a, and 551b can be configured as an adhesive material capable of compression and decompression. For example, the adhesive members 551, 551a, and 551b can be configured as an adhesive material having a low modulus of elasticity. The adhesive members 551, 551a, and 551b can be configured as an adhesive resin material, an adhesive, or an adhesive tape, etc. The adhesive resin material can include one of an epoxy-based resin material, an acrylic-based resin material, and a silicone-based resin material, but embodiments of the disclosure are not limited thereto. For example, the adhesive members 551, 551a, and 551b can include an acrylic-based material having a relatively strong adhesive force and a relatively high hardness compared to a polyurethane-based material, such that the vibration of the first vibration device 511 is effectively transmitted to the first peripheral portions of each of the 2-1 vibration device 521 and the 2-2 vibration device 522.

[0093] The first elastic member 560 can be connected between the first active vibration member 510 and the support member (or first member) 300. For example, the first elastic member 560 can be connected between the support member 300 and each of the first and second peripheral portions of the first active vibration member 510. For example, the first elastic member 560 can be connected between the first vibration device 521 and the support member 300. For example, the first elastic member 560 can be connected between the support member 300 and each of the first and second peripheral portions of the first vibration device 511. For example, the central portion of the support member 300 can overlap with a region between the first and second peripheral portions of the first vibration device 511, or can overlap with a central portion of the first vibration device 511.

[0094] The first elastic member 560 according to another embodiment of the disclosure can include a 1-1 elastic member 561 and a 1-2 elastic member 562. For example, the first elastic member 560 can be a first elastic portion or a first elastic support portion. For example, the 1-1 elastic member 561 and the 1-2 elastic member 562 can be a pair of first elastic portions or a pair of first elastic members. In one or more aspects of the disclosure, the 1-1 elastic member 561 and the 1-2 elastic member 562 can be a first elastic member and a second elastic member, but embodiments of the disclosure are not limited to the labels such as "1-1" and "1-2". For example, the 1-1 elastic member 561 can be one elastic member, and the 1-2 elastic member 562 can be another elastic member.

[0095] The 1-1 elastic member (or 1-1 elastic portion) 561 can be connected between the first peripheral portion of the first vibration device 511 and the support member 300. The 1-1 elastic member 561 can include a first surface connected to the first peripheral portion of the first vibration device 511 and a second surface opposite the first surface and connected to the first connection region 300a of the support member 300. Accordingly, the 1-1 elastic member 561 can elastically or flexibly support the first peripheral portion of the first vibration device 511. For example, the first peripheral portion of the first vibration device 511 can be connected to the support member 300 through the 1-1 elastic member 561 to achieve vibration (or displacement).

[0096] The 1-2 elastic member (or 1-2 elastic portion) 562 can be connected between the second peripheral portion of the first vibration device 511 and the support member 300. The 1-2 elastic member 562 can include a first surface connected to the second peripheral portion of the first vibration device 511 and a second surface opposite the first surface and connected to the second connection area 300b of the support member 300. Accordingly, the 1-2 elastic member 562 can elastically or flexibly support the second peripheral portion of the first vibration device 511. For example, the second peripheral portion of the first vibration device 511 can be connected to the support member 300 through the 1-2 elastic member 562 to implement vibration (or displacement).

[0097] The first elastic members 560, 561, and 562 according to embodiments of the disclosure can include an elastic material having elasticity or flexibility. The first elastic members 560, 561, and 562 can be configured to have an elastic body having an elastic modulus (or Young's modulus) lower than each of the first vibration device 511 and the support member 300. For example, the first elastic members 560, 561, and 562 can include a double-sided tape, a single-sided tape, a double-sided foam tape, or a double-sided adhesive foam pad, but embodiments of the disclosure are not limited thereto and can include an elastic pad such as a rubber pad or a silicone pad, which has an adhesive property and is capable of compression and decompression. For example, the adhesive layer of the first elastic members 560, 561, and 562 can include an acrylic-based material having a property of relatively strong adhesion and relatively high hardness.

[0098] The first elastic members 560, 561, and 562 according to embodiments of the disclosure can increase the weight (or mass) of the first vibration device 511 and thus can serve as a mass (or mass body) that lowers the resonance frequency (or natural frequency) of the first vibration device 511. Accordingly, the first vibration device 511 can increase the mass at both ends thereof due to the first elastic members 560, 561, and 562, and can increase elasticity due to the complex effect based on the elastic modulus of each of the first elastic members 560, 561, and 562, and thus the vibration width (or displacement width) can increase. The first vibration device 511 can lower the resonance frequency (or natural frequency) due to the first elastic members 560, 561, and 562, and thus can vibrate at a relatively low frequency. For example, the first vibration device 511 can lower the lowest resonance frequency (or lowest natural frequency) due to the mass (or weight) effect of each of the first elastic members 560, 561, and 562, and thus can have a lowest vibration number (or lowest vibration frequency) of several Hz to several tens of Hz and can maximize the vibration width (or displacement width) based on the lowest resonance frequency (or lowest natural frequency).

[0099] The second elastic member 570 can be connected between the second active vibration member 520 and the passive vibration member (or second member) 100. For example, the second elastic member 570 can be connected between the passive vibration member 100 and each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 of the second active vibration member 520. For example, the second elastic member 570 can be connected between the second peripheral portions of the pair of second active vibration members 521 and 522 and the passive vibration member 100. Accordingly, the second peripheral portions of each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 can be connected to the passive vibration member 100 through the second elastic member 570, thereby causing the passive vibration member 100 to vibrate (or displace).

[0100] The second elastic member 570 can include a 2-1 elastic member 571 and a 2-2 elastic member 572. For example, the second elastic member 570 can be a second elastic portion or a second elastic support portion. For example, the 2-1 elastic member 571 and the 2-2 elastic member 572 can be a pair of second elastic portions or a pair of second elastic members. In one or more aspects of the present disclosure, the 2-1 elastic member 571 and the 2-2 elastic member 572 can be a third elastic member and a fourth elastic member, but embodiments of the present disclosure are not limited to the labels such as "2-1" and "2-2". For example, the 2-1 elastic member 571 can be one additional elastic member, and the 2-2 elastic member 572 can be another additional elastic member.

[0101] The 2-1 elastic member (or 2-1 elastic portion) 571 can be connected between the second peripheral portion of the 2-1 vibration device 521 and the passive vibration member 100. The 2-1 elastic member 571 can include a first surface connected to the second peripheral portion of the 2-1 vibration device 521 and a second surface opposite the first surface and connected to the first connection region 100a of the passive vibration member 100. Accordingly, the 2-1 elastic member 571 can elastically or flexibly support the second peripheral portion of the 2-1 vibration device 521. For example, the second peripheral portion of the 2-1 vibration device 521 can be connected to the passive vibration member 100 through the 2-1 elastic member 571 to achieve vibration (or displacement).

[0102] The 2-1 elastic member 571 according to the embodiments of the disclosure can include an elastic material having elasticity or flexibility. The 2-1 elastic member 571 can be configured to have an elastic body having a lower elastic modulus (or Young's modulus) than each of the 2-1 vibration device 521 and the passive vibration member 100. The 2-1 elastic member 571 can be configured of, or configured to have, the same elastic material as each of the first elastic members 560, 561, and 562, but the embodiments of the disclosure are not limited thereto, and the 2-1 elastic member 571 can be configured of, or configured to have, an elastic body having a lower elastic modulus (or Young's modulus) than the first elastic members 560, 561, and 562. For example, the adhesive layer of the 2-1 elastic member 571 can include an acrylic-based material having a relatively strong adhesive force and a relatively high hardness, but the embodiments of the disclosure are not limited thereto.

[0103] According to the embodiments of the disclosure, the 2-1 elastic member 571 can increase the weight (or mass) of the 2-1 vibration device 521, and thus can serve as a mass (or mass body) that lowers the resonance frequency (or natural frequency) of the 2-1 vibration device 521. Accordingly, the 2-1 vibration device 521 can increase the mass at both ends (or both sides) thereof due to the 2-1 elastic member 571 and the first vibration device 511, and can increase the elasticity due to the combined effect based on the elastic modulus of each of the 2-1 elastic member 571 and the first elastic member 561, and thus the vibration width (or displacement width) can increase. The 2-1 vibration device 521 can lower the resonance frequency (or natural frequency) due to the 2-1 elastic member 571 and the first vibration device 511, and thus can vibrate at a relatively low frequency. For example, the 2-1 vibration device 521 can lower the lowest resonance frequency (or lowest natural frequency) due to the mass (or weight) effect of the first vibration device 511, and thus can have a lowest vibration number (or lowest vibration frequency) of several Hz to several tens of Hz and can maximize the vibration width (or displacement width) based on the lowest resonance frequency (or lowest natural frequency).

[0104] The 2-2 elastic member (or 2-2 elastic portion) 572 can be connected between the second peripheral portion of the 2-2 vibration device 522 and the passive vibration member 100. The 2-2 elastic member 572 can include a first surface connected to the second peripheral portion of the 2-2 vibration device 522 and a second surface opposite the first surface and connected to the second connection area 100b of the passive vibration member 100. Accordingly, the 2-2 elastic member 572 can elastically or flexibly support the second peripheral portion of the 2-2 vibration device 522. For example, the second peripheral portion of the 2-2 vibration device 522 can be connected to the passive vibration member 100 through the 2-2 elastic member 572 to achieve vibration (or displacement).

[0105] The 2-2 elastic member 572 according to the embodiments of the disclosure can be configured of, or configured as, substantially the same elastic body as the 2-1 elastic member 571, and thus a repeated description thereof can be omitted. According to the embodiments of the disclosure, the 2-2 elastic member 572 can increase the weight (or mass) of the 2-2 vibration device 522, and thus can function as a mass (or mass body) that lowers the resonance frequency (or natural frequency) of the 2-2 vibration device 522. This can be substantially the same as the 2-1 elastic member 571, and thus a repeated description thereof can be omitted. Accordingly, the 2-2 vibration device 522 can lower the lowest resonance frequency (or lowest natural frequency) due to the mass (or weight) effect of the 2-2 elastic member 572 and the first vibration device 511, and thus can have a lowest vibration number (or lowest vibration frequency) of several Hz to several tens of Hz and can maximize the vibration width (or displacement width) based on the lowest resonance frequency (or lowest natural frequency).

[0106] The vibration device 500 according to the embodiments of the disclosure can have a vibration width (or displacement width) based on a composite vibration (or combined vibration) of the first active vibration member 510 and the second active vibration member 520 in driving (or vibration). When the vibration width (or displacement width) in the driving (or vibration) of the vibration device 500 increases, the total vibration width (or displacement width) of the vibration device 500 can increase. For example, the vibration device 500 can have a large vibration width (or displacement width) based on a composite vibration (or combined vibration) of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 by a resonance phenomenon based on the lowest resonance frequency (or natural frequency) of each of the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522.

[0107] According to embodiments of the present disclosure, when driving signals respectively applied to the first vibration device 511, the 2-1 vibration device 521, and the 2-2 vibration device 522 have the same phase, the total vibration width (or displacement width) of the vibration apparatus 500 can be added to the vibration width (or displacement width) of the first vibration device 511 and the vibration width (or displacement width) of the 2-1 vibration device 521 (or the 2-2 vibration device 522), and thus can be maximized. For example, the vibration generated in the first vibration device 511 and the vibration generated in each of the 2-1 vibration device 521 and the 2-2 vibration device 522 can be enhanced with each other, and thus the vibration efficiency (or vibration characteristic) can be enhanced. Accordingly, the vibration apparatus 500 according to embodiments of the present disclosure can increase (or amplify) or maximize the vibration width (or displacement width) of the passive vibration member 100, and can vibrate the passive vibration member 100 at a minimum vibration number (or minimum vibration frequency) of several Hz to several tens of Hz.

[0108] Accordingly, the vibration apparatus 500 according to embodiments of the present disclosure can enhance the sound characteristic and the sound pressure level characteristic of the bass sound band generated based on the vibration of the passive vibration member 100, and can vibrate the passive vibration member 100 at a minimum vibration number (or minimum vibration frequency) of several Hz to several tens of Hz, thereby enhancing the sound characteristic and the sound pressure level characteristic of the ultra-bass sound band (or ultra-bass sound band) of 100 Hz or less. For example, the ultra-bass sound band (or ultra-bass sound band) can be an inaudible sound band (or a sound band that a user cannot hear with ears).

[0109] Figure 4 A vibration model of an apparatus according to embodiments of the present disclosure is illustrated.

[0110] Referring to Figures 2 to 4 An apparatus according to embodiments of the present disclosure can have a composite structure of a 2-degree-of-freedom vibration model. For example, the apparatus according to embodiments of the present disclosure can include a composite model of one undamped model and one damped model.

[0111] In the apparatus according to the embodiment of the disclosure, the first active vibration member 510 can be connected to the support member 300 through the first elastic member 560, the first active vibration member 510 and the second active vibration member 520 can be connected to each other, and the second active vibration member 520 can be connected to the passive vibration member 100 through the second elastic member 570. Accordingly, the support member 300 can be modeled based on a first mass m1, the first elastic member 560 can be modeled based on a first spring constant k1 and a first damping coefficient c1, the first active vibration member 510 can be modeled based on a second mass m2, the second active vibration member 520 can be modeled based on a third mass m3, the second elastic member 570 can be modeled based on a second spring constant k2 and a second damping coefficient c2, and the passive vibration member 100 can be modeled based on a fourth mass m4. The first active vibration member 510 can be directly connected to the second active vibration member 520, and thus the second mass m2 and the third mass m3 can be incorporated into one composite mass "m2+m3".

[0112] The second active vibration member 520 and the passive vibration member 100 can be connected to each other through the second elastic member 570, and thus can each independently vibrate (or displace or drive). Forces generated based on the vibration of each of the first active vibration member 510 and the second active vibration member 520 can vibrate the passive vibration member 100. The fourth mass m4 of the passive vibration member 100 affected by the forces generated based on the vibration of each of the first active vibration member 510 and the second active vibration member 520 can be reduced due to the second elastic member 570, and thus the acceleration applied to each of the first active vibration member 510, the second active vibration member 520, and the passive vibration member 100 can be increased according to the forces generated based on the vibration of each of the first active vibration member 510 and the second active vibration member 520, and the acceleration applied to each of the first active vibration member 510 and the second active vibration member 520 can be further increased due to the second elastic member 570. Accordingly, the first active vibration member 510 and the second active vibration member 520 can resonate at a large displacement. In addition, the displacement (or vibration) of each of the first active vibration member 510 and the second active vibration member 520 can be gradually transmitted through the second elastic member 570, and thus the displacement (or vibration) of each of the first active vibration member 510 and the second active vibration member 520 can not be prevented (or reduced) by the fourth mass m4 of the passive vibration member 100.

[0113] Accordingly, the device according to the embodiments of the disclosure can increase the displacement amount (or displacement width) of each of the first active vibration member 510, the second active vibration member 520, and the passive vibration member 100, thereby enhancing the sound characteristics and the sound pressure level characteristics of the bass tone sound band generated based on the vibration of the passive vibration member 100. In addition, the vibration device 500 according to the embodiments of the disclosure can vibrate the passive vibration member 100 at a minimum vibration number (or minimum vibration frequency) of several Hz to several tens of Hz, thereby enhancing the sound characteristics and the sound pressure level characteristics of the ultra-bass tone sound band (or ultra-bass tone sound band) of 100 Hz or less. For example, the ultra-bass tone sound band (or ultra-bass tone sound band) can be an inaudible tone sound band (or a tone sound band that the user's ear cannot hear).

[0114] Figure 5 The displacement width (or displacement amount) of the vibration device based on the driving signals applied to the first active vibration member and the second active vibration member are shown. Figure 2 and Figure 3 The displacement width (or displacement amount) of the vibration device based on the driving signals applied to the first active vibration member and the second active vibration member are shown.

[0115] Referring to Figure 2 , Figure 3 and Figure 5 , the driving signal (or first driving signal) of the first vibration means 511 applied to the first active vibration member 510 has the same phase as the driving signal (or second driving signal) applied to the 2-1 vibration means 521 and the 2-2 vibration means 522 of the second active vibration member 520, and the first vibration means 511, the 2-1 vibration means 521, and the 2-2 vibration means 522 can be bent (or displaced or driven or vibrated) in the same shape. For example, the first vibration means 511 can be bent (or displaced or driven or vibrated) in a first shape based on the first driving signal, and thus, the first peripheral portion and the second peripheral portion of the first vibration means 511 can be bent (or displaced or driven or vibrated) in a direction closer to the support member 300. Meanwhile, each of the 2-1 vibration means 521 and the 2-2 vibration means 522 can be bent (or displaced or driven or vibrated) in the first shape based on the second driving signal having the same phase as the first driving signal, and thus, the second peripheral portion of each of the 2-1 vibration means 521 and the 2-2 vibration means 522 can be bent (or displaced or driven or vibrated) in a direction closer to the support member 300. Accordingly, when the driving signals having the same phase are applied to the first active vibration member 510 and the second active vibration member 520, the vibration device 500 can have a first displacement width (or displacement amount) corresponding to the shortest distance between the first peripheral portion and the second peripheral portion of the first vibration means 511 and the center portion of each of the 2-1 vibration means 521 and the 2-2 vibration means 522.

[0116] When the driving signal (or first driving signal) of the first vibration device 511 applied to the first active vibration member 510 has an opposite phase to the driving signal (or second driving signal) applied to each of the 2-1 vibration device 521 and the 2-2 vibration device 522 of the second active vibration member 520, the first vibration device 511 can be bent (or displaced or driven or vibrated) in a different shape from each of the 2-1 vibration device 521 and the 2-2 vibration device 522. For example, the first vibration device 511 can be bent (or displaced or driven or vibrated) in a second shape opposite to the first shape based on the second driving signal having the opposite phase to the first driving signal, and thus, the first peripheral portion and the second peripheral portion of the first vibration device 511 can be bent (or displaced or driven or vibrated) in a direction closer to the passive vibration member 100. Meanwhile, each of the 2-1 vibration device 521 and the 2-2 vibration device 522 can be bent (or displaced or driven or vibrated) in the first shape based on the second driving signal having the same phase as the first driving signal, and thus, the second peripheral portion of each of the 2-1 vibration device 521 and the 2-2 vibration device 522 can be bent (or displaced) in a direction closer to the support member 300. Accordingly, when the driving signals having opposite phases are applied to the first active vibration member 510 and the second active vibration member 520, the vibration device 500 can have a second displacement width (or displacement amount) corresponding to the shortest distance between the center portion of the first vibration device 511 and the center portion of each of the 2-1 vibration device 521 and the 2-2 vibration device 522.

[0117] As seen in Figure 5 When the driving signals having the same phase are applied to the first active vibration member 510 and the second active vibration member 520, the vibration device 500 according to the embodiment of the disclosure can have a first displacement width W1, and when the driving signals having opposite phases are applied to the first active vibration member 510 and the second active vibration member 520, the vibration device 500 can have a second displacement width W2 smaller than the first displacement width W1.

[0118] Accordingly, the apparatus according to the embodiments of the disclosure can provide the first active vibration member 510 and the second active vibration member 520 of the vibration apparatus 500 with driving signals having the same phase, and thus can increase the displacement amount (or displacement width) of the passive vibration member 100, thereby enhancing the sound characteristic and the sound pressure level characteristic of a low-pitch sound band (e.g., a 100 Hz or lower ultra-low-pitch sound band (or an ultra-low-pitch sound band)) generated based on the vibration of the passive vibration member 100. In addition, the apparatus according to the embodiments of the disclosure can provide the first active vibration member 510 and the second active vibration member 520 of the vibration apparatus 500 with driving signals having opposite phases, and thus can increase the displacement amount (or displacement width) of the passive vibration member 100, thereby enhancing the sound characteristic and the sound pressure level characteristic of a high-pitch sound band generated based on the vibration of the passive vibration member 100.

[0119] Figure 6 is another cross-sectional view taken along Figure 1 line I-I' shown in FIG. 1. Figure 7 shows a vibration apparatus according to another embodiment of the disclosure. Figure 6 Figure 6 and Figure 7 shows an embodiment in which a mass member is additionally provided in the apparatus or vibration apparatus according to the embodiments of the disclosure described above with reference to Figures 1 to 5 Accordingly, in the description of Figure 6 and Figure 7 , like reference numerals can refer to other elements than the mass member and related elements, and repeated description of these elements can be omitted.

[0120] Referring to Figure 6 and Figure 7 , the apparatus or vibration apparatus 500 according to the embodiments of the disclosure can further include a mass member 555.

[0121] ​The mass member 555 can be disposed between the plurality of active vibration members 510 and 520. For example, the mass member 555 can be disposed at the intersection portion 501 between the plurality of active vibration members 510 and 520. For example, the mass member 555 can be disposed between the first active vibration member 510 and the second active vibration member 520. For example, the mass member 555 can be disposed at the intersection portion 501 between the first active vibration member 510 and the second active vibration member 520. For example, the mass member 555 can be disposed between each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 and the first active vibration member 510. For example, the mass member 555 can be disposed between the adhesive member 551 and the first active vibration member 510 or between the adhesive member 551 and the second active vibration member 520. For example, the mass member 555 can be disposed between each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 and the adhesive member 551.

[0122] The mass member 555 can be disposed between the first vibration device 511 and each of the 2-1 vibration device 521 and the 2-2 vibration device 522. For example, the mass member 555 can be disposed between the first vibration device 511 and the adhesive member 551. For example, the mass member 555 can be disposed between each of the 2-1 vibration device 521 and the 2-2 vibration device 522 and the adhesive member 551. The mass member 555 can be embedded in the adhesive member 551. The adhesive member 551 can be disposed to completely surround (or surround all of) the mass member 555.

[0123] The mass member 555 can include a 1-1 mass member 555a and a 1-2 mass member 555b. For example, the mass member 555 can be referred to as a first mass portion, a first mass member, a first mass piece, or a first weight piece. For example, the 1-1 mass member 555a and the 1-2 mass member 555b can be a pair of first mass portions, a pair of first mass members, a pair of first mass pieces, or a pair of first weight pieces. In one or more aspects of the present disclosure, the 1-1 mass member 555a and the 1-2 mass member 555b can be a first mass member and a second mass member, but embodiments of the present disclosure are not limited to designations such as “1-1” and “1-2”. For example, the 1-1 mass member 555a can be a first mass member, and the 1-2 mass member 555b can be a second mass member.

[0124] According to embodiments of the present disclosure, the 1-1 mass member (or 1-1 mass portion) 555a and the 1-2 mass member (or 1-2 mass portion) 555b can include a first surface and a second surface.

[0125] The first surface of the 1-1 mass member 555a can be connected (or adhered) to the 1-1 adhesive member 551a. The first surface of the 1-2 mass member 555b can be connected (or adhered) to the 1-2 adhesive member 551b. The second surface of the 1-1 mass member 555a can be connected (or adhered) to the first peripheral portion of the first vibration device 511 or the 2-1 vibration device 521. The second surface of the 1-2 mass member 555b can be connected (or adhered) to the first peripheral portion of the first vibration device 511 or the 2-2 vibration device 522.

[0126] According to an embodiment of the present disclosure, the mass member 555 can not be divided into the 1-1 mass member 555a and the 1-2 mass member 555b and can be configured as one body (or configured as one whole). For example, the mass member 555 can have a polygonal column shape or a circular column shape having a size smaller than or equal to the central portion (or the intersection portion 501) of the first vibration device 511. For example, the first surface of the mass member 555 can be connected (or adhered) to the adhesive member 551. The second surface of the mass member 555 can be connected (or adhered) to the central portion of the first vibration device 511, or can be commonly connected (or adhered) to the first peripheral portion of each of the 2-1 vibration device 521 and the 2-2 vibration device 522.

[0127] The mass member 555 or the 1-1 mass member 555a and the 1-2 mass member 555b can include an elastic material capable of being used as a mass (or a mass body) on the vibration devices 511, 521, and 522. For example, the mass member 555 or the 1-1 mass member 555a and the 1-2 mass member 555b can include an elastic material having a strength smaller than a bending strength of each of the vibration devices 511, 521, and 522. For example, the mass member 555 or the 1-1 mass member 555a and the 1-2 mass member 555b can include the same elastic material as the elastic members 560 and 570 or the coupling member 200, but embodiments of the present disclosure are not limited thereto. For example, the mass member 555 or the 1-1 mass member 555a and the 1-2 mass member 555b can be formed of an elastomer, but embodiments of the present disclosure are not limited thereto.

[0128] According to another embodiment of the present disclosure, the mass member 555 or the 1-1 mass member 555a and the 1-2 mass member 555b can include an adhesive layer, or can not include an adhesive layer. For example, when the mass member 555 or the 1-1 mass member 555a and the 1-2 mass member 555b do not include an adhesive layer, the vibration device 500 according to another embodiment of the present disclosure can further include an adhesive member attached on the first surface of the mass member 555.

[0129] Mass component 555 or 1-1 mass component 555a and 1-2 mass component 555b can be used as a mass element (or mass body) that increases the mass (or weight) of each of the first vibrating device 511, 2-1 vibrating device 521, and 2-2 vibrating device 522 to lower the lowest resonant frequency (or lowest natural frequency) of each of the vibrating devices 511, 521, and 522. Therefore, each of the first vibrating device 511, 2-1 vibrating device 521, and 2-2 vibrating device 522 can further lower its lowest resonant frequency (or lowest natural frequency) and thus can vibrate at a relatively low frequency.

[0130] As described above, the vibration device 500 according to another embodiment of the present disclosure may further include a mass member 555, and thus may further enhance the sound characteristics and sound pressure level characteristics of the 100Hz or lower sub-bass vocal cords (or sub-bass vocal cords) generated by the vibration of the passive vibration member 100.

[0131] Another embodiment of the apparatus or vibration device 500 according to this disclosure, such as... Figure 8 The device may also include an auxiliary mass member 556 to increase the mass (or weight) of each of the first vibrating device 511, the 2-1 vibrating device 521, and the 2-2 vibrating device 522.

[0132] The auxiliary mass member 556 may be connected to the second active vibrating member 520, but embodiments of this disclosure are not limited thereto. For example, the auxiliary mass member 556 may be connected to the rear center portion of the first vibrating device 511. The auxiliary mass member 556 may comprise the same elastic material as the mass member 555. For example, the auxiliary mass member 556 may be configured to have a polygonal columnar shape or a circular columnar shape, having a size smaller than or equal to the center portion (or intersecting portion 501) of the first vibrating device 511. Therefore, an apparatus or vibration device 500 according to another embodiment of this disclosure may further include at least one of the mass member 555 and the auxiliary mass member 556, and thus the composite vibration (or combined vibration) based on the first active vibrating member 510 and the second active vibrating member 520 may have a larger vibration width (or displacement width).

[0133] Figure 9 It shows the basis Figure 1 An exploded perspective view of an apparatus according to another embodiment of this disclosure. Figure 9 This shows how to modify the reference above. Figures 1 to 8 The embodiment is achieved through a first active vibrating member in the described device. Therefore, in Figure 9In the description of the first active vibration member and related elements, elements other than the first active vibration member and related elements can be referred to by similar reference numerals, and repeated description of these elements can be omitted.

[0134] Referring to Figure 9 In the vibration device 500 according to another embodiment of the disclosure, the first active vibration member 510 can be configured to have the same size as the second active vibration member 520. For example, the first active vibration member 510 can be configured to be the sum of (a) the size of the 2-1 active vibration member 520-1 and (b) the size of the 2-2 active vibration member 520-2 of the second active vibration member 520. For example, the length of the first active vibration member 510 in the second direction Y can be configured to be the sum of (a) the length of the 2-1 active vibration member 520-1 in the first direction X and (b) the length of the 2-2 active vibration member 520-2 in the first direction X. For example, the length of the first active vibration member 510 in the second direction Y can be configured to be the sum of (a) the length of the 2-1 active vibration member 520-1 in the first direction X, (b) the length of the 2-2 active vibration member 520-2 in the first direction X, and (c) the size (or length) of the gap at the intersection portion 501 in the first direction X. For example, the first active vibration member 510 can be configured to have the same short side length as the short side length of each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 of the second active vibration member 520. Accordingly, Figure 9 The illustrated first active vibration member 510 can have a size larger than Figures 2 to 8 The illustrated first active vibration member 510, and thus can have a vibration width (or displacement width) larger than Figures 2 to 8 The illustrated first active vibration member 510.

[0135] The first active vibration member 510 according to another embodiment of the disclosure can include a first vibration device 512.

[0136] The first vibration device 512 can be configured to have the same size as the second active vibration member 520. For example, the first vibration device 512 can be configured to have the same size as the sum of (a) the size of the 2-1 vibration device 521 of the 2-1 active vibration member 520-1 and (b) the size of the 2-2 vibration device 522 of the 2-2 active vibration member 520-2. For example, the length of the first vibration device 512 in the second direction Y can be configured to be the sum of (a) the length of the 2-1 vibration device 521 in the first direction X and (b) the length of the 2-2 vibration device 522 in the first direction X. For example, the first vibration device 512 can be configured to have a size greater than the sum of (a) the size of the 2-1 vibration device 521 of the 2-1 active vibration member 520-1 and (b) the size of the 2-2 vibration device 522 of the 2-2 active vibration member 520-2. For example, the first vibration device 512 can be configured to have a size equal to the sum of (a) the size of the 2-1 vibration device 521 of the 2-1 active vibration member 520-1, (b) the size of the 2-2 vibration device 522 of the 2-2 active vibration member 520-2, and (c) the size of the gap at the intersection portion 501. For example, the first vibration device 512 can be configured to have a long side length greater than the sum of (a) the long side length of the 2-1 vibration device 521 of the 2-1 active vibration member 520-1 and (b) the long side length of the 2-2 vibration device 522 of the 2-2 active vibration member 520-2. For example, the first vibration device 512 can be configured to have a long side length that is the sum of (a) the long side length of the 2-1 vibration device 521 of the 2-1 active vibration member 520-1, (b) the long side length of the 2-2 vibration device 522 of the 2-2 active vibration member 520-2, and (c) the length of the gap at the intersection portion 501 along the length of the second active vibration member 520. For example, the first vibration device 512 can be configured to have a short side length that is the same as the short side length of each of the 2-1 vibration device 521 of the 2-1 active vibration member 520-1 and the 2-2 vibration device 522 of the 2-2 active vibration member 520-2. Thus, Figure 9 The illustrated first vibration device 512 can have a size greater than Figures 2 to 8 the first vibration device 511 illustrated above, and thus can have a vibration width (or displacement width) greater than Figures 2 to 8 the first vibration device 511 illustrated above.

[0137] As described above, based on the size of the first active vibration member 510 or the first vibration device 512, the vibration device 500 according to another embodiment of the disclosure can have a size greater than the first vibration device 511 illustrated above with reference to Figures 1 to 8The described vibrating device has a large vibration width (or displacement width). Therefore, the vibration width (or displacement width) of the passive vibrating member 100 can be further increased, and thus the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords (e.g., ultra-low-pitched vocal cords (or sub-low-pitched vocal cords)) generated based on the vibration of the passive vibrating member 100 can be further enhanced.

[0138] Figure 10 It is along Figure 1 Another cross-sectional view taken from line I-I'. Figure 11 It is based on Figure 10 A plan view of a vibration device according to another embodiment of this disclosure is shown. Figure 12 It is shown Figure 10 and Figure 11 A three-dimensional view of the vibration device shown. Figures 10 to 12 It is shown that in the reference Figures 1 to 9 An embodiment in which a third active vibrating member is additionally configured (or provided) in the described device or vibration device. Therefore, in Figures 10 to 12 In the description, other elements besides the third active vibration member and related elements may be referred to by similar reference numerals, and repeated descriptions of these elements may be omitted.

[0139] Reference Figures 10 to 12 According to another embodiment of the present disclosure, the apparatus or vibration device 500 may further include a third active vibration member 530.

[0140] The third active vibration member 530 may be configured to intersect with each of the first active vibration member 510 and the second active vibration member 520. For example, the device or vibration device 500 may include: the first active vibration member 510, the second active vibration member 520, and the third active vibration member 530, which are configured to intersect each other at an intersection portion 501 and connect to each other at the intersection portion 501. For example, the first active vibration member 510, the second active vibration member 520, and the third active vibration member 530 may be configured to have a "*" shape in two dimensions.

[0141] According to embodiments of the present disclosure, the first, second, and third active vibration members 510, 520, and 530 can be divided (or classified) into or can include a first group (or first member group) G1 and a second group (or second member group) G2, or can include a first group (or first member group) G1 and a second group (or second member group) G2. Each of the first group G1 and the second group G2 can include one or more of the first, second, and third active vibration members 510, 520, and 530. For example, one or more of the first, second, and third active vibration members 510, 520, and 530 can be included in the first group G1, and the other active vibration members 520 and 530, other than the one or more active vibration members 510 in the first group G1, can be included in the second group G2. Accordingly, the vibration device 500 can include the first group G1 and the second group G2 configured to include one or more of the active vibration members 510, 520, and 530.

[0142] The one or more active vibration members 510 in the first group G1 can be connected to the support member 300. The one or more active vibration members 520 and 530 in the second group G2 can be connected to the passive vibration member 100. For example, the first active vibration member 510 can be included in the first group G1, the second active vibration member 520 can be included in the second group G2, and the third active vibration member 530 can be included in the first group G1 or the second group G2. For example, the number of active vibration members in the second group G2 can be greater than the number of active vibration members in the first group G1.

[0143] The third active vibration member 530 can be disposed to intersect the second active vibration member 520 and can be connected to the second active vibration member 520 at the intersection portion 501. The third active vibration member 530 can be connected to the passive vibration member (or second member) 100. For example, the third active vibration member 530 can be connected to the passive vibration member 100 to enhance the sound characteristic and the sound pressure level characteristic of the low-pitched vocal cord, but embodiments of the present disclosure are not limited thereto. For example, the third active vibration member 530 can be connected to the support member 300 to enhance the sound characteristic and the sound pressure level characteristic of the high-pitched vocal cord.

[0144] The third active vibration member 530 can include 3-1 and 3-2 active vibration members 530-1 and 530-2 connected to the second active vibration member 520 and the passive vibration member 100, respectively. The 3-1 and 3-2 active vibration members 530-1 and 530-2 can be disposed in a direction intersecting the second active vibration member 520 and can be spaced apart from each other at a central portion of the second active vibration member 520. For example, the 3-1 and 3-2 active vibration members 530-1 and 530-2 can be a pair of third active vibration members. In one or more aspects of the disclosure, the 3-1 and 3-2 active vibration members 530-1 and 530-2 can be a fourth active vibration member and a fifth active vibration member, but embodiments of the disclosure are not limited to the labels such as "3-1" and "3-2".

[0145] The 3-1 active vibration member 530-1 can include a 3-1 vibration device 531, and the 3-2 active vibration member 530-2 can include a 3-2 vibration device 532. The 3-1 and 3-2 vibration devices 531 and 532 can be a pair of third vibration devices. The 3-1 and 3-2 vibration devices 531 and 532 can be disposed in parallel with each other in a direction intersecting the first vibration device 511 and the 2-1 and 2-2 vibration devices 521 and 522, and can be spaced apart from each other at the intersection portion 501 above the first vibration device 511. In one or more aspects of the disclosure, the 3-1 and 3-2 vibration devices 531 and 532 can be a fourth vibration device (or vibration means) and a fifth vibration device (or vibration means), but embodiments of the disclosure are not limited to the labels such as "3-1" and "3-2".

[0146] Each of the 3-1 and 3-2 vibration devices 531 and 532 can be configured to have the same shape, size, and structure as each of the 2-1 and 2-2 vibration devices 521 and 522. The vibration device 511 of the first active vibration member 510 can have a smaller length than each of the 3-1 and 3-2 vibration devices 531 and 532 and the 2-1 and 2-2 vibration devices 521 and 522, but is not limited thereto, and the vibration device 511 of the first active vibration member 510 can have the same shape and size as each of the 3-1 and 3-2 vibration devices 531 and 532 and the 2-1 and 2-2 vibration devices 521 and 522.

[0147] The 3-1 vibration device 531 and the 3-2 vibration device 532 can vibrate (or displace or be driven) based on the same driving signal. The driving signal applied to the 3-1 vibration device 531 and the 3-2 vibration device 532 can have the same phase (or be in phase) as the driving signal applied to the first vibration device 511, or can have an opposite phase (or be in anti-phase) with respect to the phase of the driving signal applied to the first vibration device 511. The driving signal applied to the 3-1 vibration device 531 and the 3-2 vibration device 532 can have the same phase (or be in phase) as the driving signal applied to the 2-1 vibration device 521 and the 2-2 vibration device 522, or can have an opposite phase (or be in anti-phase) with respect to the phase of the driving signal applied to the 2-1 vibration device 521 and the 2-2 vibration device 522.

[0148] According to an embodiment of the disclosure, the driving signals applied to the first vibration device 511, the 2-1 vibration device 521 and the 2-2 vibration device 522, and the 3-1 vibration device 531 and the 3-2 vibration device 532 can have the same phase. For example, when the 3-1 vibration device 531 and the 3-2 vibration device 532 are connected to the passive vibration member 100, the driving signals applied to the 3-1 vibration device 531 and the 3-2 vibration device 532 can have the same phase as the driving signals applied to the 2-1 vibration device 521 and the 2-2 vibration device 522, and can have the same phase or an opposite phase (or be in anti-phase) with respect to the phase of the driving signal applied to the first vibration device 511. For example, when the 3-1 vibration device 531 and the 3-2 vibration device 532 are connected to the support member 300, the driving signals applied to the 3-1 vibration device 531 and the 3-2 vibration device 532 can have the same phase or an opposite phase with respect to the driving signals applied to the 2-1 vibration device 521 and the 2-2 vibration device 522, and can have the same phase as the driving signal applied to the first vibration device 511. Accordingly, the driving signals applied to the first vibration device 511, the 2-1 vibration device 521 and the 2-2 vibration device 522, and the 3-1 vibration device 531 and the 3-2 vibration device 532 can all have the same phase, or only the driving signals applied to the vibration devices connected to the support member 300 can have anti-phase.

[0149] According to an embodiment of the disclosure, one or more active vibration members in the first group G1 can include one vibration device 511 connected to the support member 300, and one or more active vibration members in the second group G2 can include a pair of vibration devices (521, 522) and (531, 532) intersecting the one vibration device 511 and spaced apart from each other at the intersection portion 501.

[0150] The device or vibration device 500 according to another embodiment of the disclosure can further include a second adhesive member 552 and a third elastic member 580.

[0151] The second adhesive member 552 can be disposed between the second active vibration member 520 and the third active vibration member 530. The second adhesive member 552 can be disposed between the 3-1 active vibration member 531 and a first side of the first peripheral portion of each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2, and can be disposed between the 3-2 active vibration member 532 and a second side of the first peripheral portion of each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2.

[0152] The second adhesive member 552 according to an embodiment of the disclosure can include a 2-1 adhesive member 552a and a 2-2 adhesive member 552b. The second adhesive member 552 can be a second adhesive portion. For example, the 2-1 adhesive member 552a and the 2-2 adhesive member 552b can be a pair of second adhesive members. In one or more aspects of the disclosure, the 2-1 adhesive member 552a and the 2-2 adhesive member 552b can be a third adhesive member and a fourth adhesive member, but embodiments of the disclosure are not limited to the labels such as "2-1" and "2-2".

[0153] The 2-1 adhesive member (or 2-1 adhesive portion) 552a can be attached between the 3-1 active vibration member 531 and the first side of the first peripheral portion of each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2. Accordingly, the first peripheral portion of the 3-1 active vibration member 531 can be connected to the first peripheral portion of each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 through the 2-1 adhesive member 552a, and thus, the first peripheral portion of the 3-1 active vibration member 531 can vibrate (or displace or be driven) based on the vibration (or displacement or driving) of the first vibration means 511 and each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2.

[0154] The 2-2 adhesive member (or 2-2 adhesive portion) 552b can be attached between the 3-2 active vibration member 532 and the second side of the first peripheral portion of each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2. Accordingly, the first peripheral portion of the 3-2 active vibration member 532 can be connected to the first peripheral portion of each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2 through the 2-2 adhesive member 552b, and thus, the first peripheral portion of the 3-2 active vibration member 532 can vibrate (or displace or be driven) based on the vibration (or displacement) of the first vibration device 511 and each of the 2-1 active vibration member 520-1 and the 2-2 active vibration member 520-2.

[0155] The second adhesive members 552, 552a, and 552b can include substantially the same material as the first adhesive members 551, 551a, and 551b, and thus a detailed description of the second adhesive members can be omitted.

[0156] The third elastic member 580 can be connected between the third active vibration member 530 and the passive vibration member (or second member) 100. For example, the third elastic member 580 can be connected between the passive vibration member 100 and each of the 3-1 active vibration member 530-1 and the 3-2 active vibration member 530-2 of the third active vibration member 530. For example, the third elastic member 580 can be connected between the passive vibration member 100 and the second peripheral portions of the pair of third active vibration members 531 and 532. Accordingly, the second peripheral portion of each of the 3-1 active vibration member 530-1 and the 3-2 active vibration member 530-2 can be connected to the passive vibration member 100 through the third elastic member 580, and thus, the passive vibration member 100 can be vibrated (or displaced or driven).

[0157] The third elastic member 580 according to an embodiment of the disclosure can include a 3-1 elastic member 581 and a 3-2 elastic member 582. For example, the third elastic member 580 can support a third elastic portion or a third elastic support portion. For example, the 3-1 elastic member 581 and the 3-2 elastic member 582 can be a pair of third elastic members or a pair of third elastic members. In one or more aspects of the disclosure, the 3-1 elastic member 581 and the 3-2 elastic member 582 can be a fifth elastic member and a sixth elastic member, but embodiments of the disclosure are not limited to the labels such as "3-1" and "3-2".

[0158] 3-1 elastic member (or 3-1 elastic portion) 581 can be connected between the passive vibration member 100 and the second peripheral portion of the 3-1 vibration device 531. The 3-1 elastic member 581 can elastically or flexibly support the second peripheral portion of the 3-1 vibration device 531. For example, the second peripheral portion of the 3-1 vibration device 531 can be connected to the passive vibration member 100 through the 3-1 elastic member 581 to enable vibration (or displacement or driving). The 3-1 elastic member 581 can be configured with, or configured as, substantially the same elastic body as the second elastic member 570 described above with reference to Figure 2 and Figure 3 The repeated description of the elastic body can be omitted. The 3-1 elastic member 581 can increase the mass (or weight) of the 3-1 vibration device 531, and thus can function as a mass member (or mass body) to lower the resonance frequency (or natural frequency) of the 3-1 vibration device 531. This can be substantially the same as the 2-1 elastic member 571, and thus the repeated description thereof can be omitted.

[0159] The 3-2 elastic member (or 3-2 elastic portion) 582 can be connected between the passive vibration member 100 and the second peripheral portion of the 3-2 vibration device 532. The 3-2 elastic member 582 can elastically or flexibly support the second peripheral portion of the 3-2 vibration device 532. For example, the second peripheral portion of the 3-2 vibration device 532 can be connected to the passive vibration member 100 through the 3-2 elastic member 582 to enable vibration (or displacement). The 3-2 elastic member 582 can be configured with, or configured as, substantially the same elastic body as the second elastic member 570 described above with reference to Figure 2 and Figure 3 The repeated description of the elastic body can be omitted. The 3-2 elastic member 582 can increase the mass (or weight) of the 3-2 vibration device 532, and thus can function as a mass member (or mass body) to lower the resonance frequency (or natural frequency) of the 3-2 vibration device 532. This can be substantially the same as the 2-2 elastic member 572, and thus the repeated description thereof can be omitted.

[0160] According to another embodiment of the present disclosure, the first and second peripheral portions of one vibration device 511 configured in the active vibration member of the first group G1 can be connected to the support member 300 through at least one pair of first elastic members 561 and 562. The second peripheral portions of each of at least one pair of vibration devices (521, 522) and (531, 532) provided in the active vibration member of the second group G2 can be connected to the passive vibration member 100 through at least one pair of second elastic members (571, 572) and (581, 582).

[0161] In the device or vibration device 500 according to another embodiment of the present disclosure, each of the first adhesive member 551 and the second adhesive member 552 can be configured to have a polygonal columnar shape or a circular columnar shape having a size less than or equal to a central portion (or intersection portion 501) of the first vibration means 511.

[0162] As described above, based on the compound vibration (or combined vibration) of the first active vibration member 510, the second active vibration member 520, and the third active vibration member 530, the vibration device 500 according to another embodiment of the present disclosure can have a large vibration width (or displacement width) than the vibration device described above with reference to FIG. 1. Figures 1 to 9 For example, the vibrations generated in each of the vibration means 511, 521, 522, 531, and 532 configured in the first active vibration member 510, the second active vibration member 520, and the third active vibration member 530 can be reinforced with each other, and thus the vibration efficiency can be improved. Accordingly, the displacement amount (or displacement width) of the passive vibration member 100 can be further increased, and thus the sound characteristics and the sound pressure level characteristics of the bass tone sound band (e.g., the ultra-bass tone sound band (or ultra-bass tone sound band) of 100 Hz or less) generated based on the vibration of the passive vibration member 100 can be further enhanced.

[0163] The device or vibration device 500 according to another embodiment of the present disclosure can further include an auxiliary mass member 557 to increase the mass (or weight) of each of the first vibration means 511, the 2-1 vibration means 521, and the 2-2 vibration means 522, and the 3-1 vibration means 531, and the 3-2 vibration means 532.

[0164] The auxiliary mass member 557 can be disposed to overlap the intersection portion 501. As one example embodiment of the present disclosure, the auxiliary mass member 557 can be connected to the third active vibration member 530, but embodiments of the present disclosure are not limited thereto. As another example embodiment of the present disclosure, the auxiliary mass member 557 can be connected to a rear central portion of the first vibration means 511. For example, the auxiliary mass member 557 can overlap the mass member 555. The auxiliary mass member 557 can include the same elastic material as the mass member 555. For example, the auxiliary mass member 557 can be configured to have a polygonal columnar shape or a circular columnar shape having a size less than or equal to the intersection portion 501. Accordingly, the device or vibration device 500 according to another embodiment of the present disclosure can further include the auxiliary mass member 557, and thus the sound characteristics and the sound pressure level characteristics of the ultra-bass tone sound band (or ultra-bass tone sound band) of 100 Hz or less generated based on the vibration of the passive vibration member 100 can be further enhanced.

[0165] Figure 13 is another cross-sectional view taken along Figure 1 line I-I' shown in FIG. 1. Figure 14 is a plan view of the vibration device shown in FIG. 1. Figure 13 Figure 13 and Figure 14 Embodiments in which a fourth active vibration member is additionally configured in the device or vibration device described above with reference to Figures 10 to 12 will be described. Thus, in the description of Figure 13 and Figure 14 , other elements than the fourth active vibration member and related elements can be referred to by similar reference numerals, and repeated description of these elements can be omitted.

[0166] Referring to Figure 13 and Figure 14 , the device or vibration device according to another embodiment of the disclosure can further include a fourth active vibration member 540.

[0167] The fourth active vibration member 540 can be disposed to intersect each of the first active vibration member 510, the second active vibration member 520, and the third active vibration member 530. For example, the device or vibration device 500 can include the first active vibration member 510, the second active vibration member 520, the third active vibration member 530, and the fourth active vibration member 540, which are disposed to intersect each other at an intersection portion 501 and are connected to each other at the intersection portion 501. For example, the first active vibration member 510, the second active vibration member 520, the third active vibration member 530, and the fourth active vibration member 540 can be arranged at 45-degree intervals in two dimensions with respect to the intersection portion 501, but embodiments of the disclosure are not limited thereto. For example, the first active vibration member 510 and the fourth active vibration member 540 can be arranged to have a "+" shape in two dimensions, and the second active vibration member 520 and the third active vibration member 530 can be arranged to have a "x" shape in two dimensions.

[0168] ​According to embodiments of the present disclosure, the first, second, third, and fourth active vibration members 510, 520, 530, and 540 can be divided (or classified) into or can include a first group (or first member group) G1 and a second group (or second member group) G2, or can include a first group (or first member group) G1 and a second group (or second member group) G2. Each of the first group G1 and the second group G2 can include one or more of the first, second, third, and fourth active vibration members 510, 520, 530, and 540. For example, one or more of the first, second, third, and fourth active vibration members 510 and 540 can be included in the first group G1, and the other active vibration members 520 and 530 other than the one or more active vibration members 510 and 540 in the first group G1 can be included in the second group G2. Accordingly, the vibration device 500 can include the first group G1 and the second group G2 configured to include one or more active vibration members 510, 520, 530, and 540.

[0169] The one or more active vibration members 510 and 540 in the first group G1 can be connected to the support member 300. The one or more active vibration members 520 and 530 in the second group G2 can be connected to the passive vibration member 100. For example, the first active vibration member 510 can be included in the first group G1, the second active vibration member 520 can be included in the second group G2, the third active vibration member 530 can be included in the first group G1 or the second group G2, and the fourth active vibration member 540 can be included in the first group G1 or the second group G2. For example, the number of active vibration members in the second group G2 can be greater than the number of active vibration members in the first group G1.

[0170] The fourth active vibration member 540 can be disposed to intersect the first active vibration member 510 and can be connected to each of the first active vibration member 510 and the second active vibration member 520 at the intersection portion 501. The fourth active vibration member 540 can be connected to the support member (or first member) 300. For example, the fourth active vibration member 540 can be connected to the passive vibration member 100 to enhance the sound characteristic and the sound pressure level characteristic of the low-pitch sound band, but embodiments of the present disclosure are not limited thereto. For example, the fourth active vibration member 540 can be connected to the support member 300 to enhance the sound characteristic and the sound pressure level characteristic of the high-pitch sound band.

[0171] The fourth active vibration member 540 can include a fourth vibration device 541 disposed between the first active vibration member 510 and the second active vibration member 520.

[0172] The central portion of the fourth vibration device 541 can be disposed to intersect the central portion of the first active vibration member 510, and can be disposed to intersect each of the 2-1 vibration device 521 and the 2-2 vibration device 522 in the second active vibration member 520. The first and second peripheral portions of the fourth vibration device 541 can be connected to the support member 300, but embodiments of the present disclosure are not limited thereto, and can be connected to the passive vibration member 100.

[0173] According to embodiments of the present disclosure, the central portion of the fourth vibration device 541 can be connected to the central portion of the first active vibration member 510 by the first adhesive member 551, and can be connected to the first peripheral portion of each of the 2-1 vibration device 521 and the 2-2 vibration device 522 in the second active vibration member 520 by an additional adhesive member.

[0174] According to another embodiment of the present disclosure, the central portion of the fourth vibration device 541 can be connected between the first adhesive member 551 and the mass member 555. For example, the central portion of the fourth vibration device 541 can be connected to the central portion of the first active vibration member 510 by the adhesive member 551, and can be connected to the first peripheral portion of each of the 2-1 vibration device 521 and the 2-2 vibration device 522 by the mass member 555. Accordingly, an additional adhesive member for connecting each of the 2-1 vibration device 521 and the 2-2 vibration device 522 to the fourth vibration device 541 can be omitted.

[0175] The fourth vibration device 541 can have the same shape and structure as the first vibration device 511. The fourth vibration device 541 can have a smaller length than each of the 3-1 vibration device 531 and the 3-2 vibration device 532 and the 2-1 vibration device 521 and the 2-2 vibration device 522, but embodiments of the present disclosure are not limited thereto, and the fourth vibration device 541 can have the same shape and size as each of the 3-1 vibration device 531 and the 3-2 vibration device 532 and the 2-1 vibration device 521 and the 2-2 vibration device 522, as shown by the dotted line in FIG. 5B. Figure 14

[0176] ​The fourth vibration device 541 can vibrate (or displace or be driven) based on a driving signal applied thereto. The driving signal applied to the fourth vibration device 541 can have the same phase or opposite phase (or inverted phase) with respect to the phase of the driving signal applied to each of the first vibration device 511, the 2-1 vibration device 521 and the 2-2 vibration device 522, and the 3-1 vibration device 531 and the 3-2 vibration device 532. For example, the driving signals applied to each of the first vibration device 511, the 2-1 vibration device 521 and the 2-2 vibration device 522, the 3-1 vibration device 531 and the 3-2 vibration device 532, and the fourth vibration device 541 can all have the same phase (or in-phase), or only the driving signal applied to the vibration device connected to the support member 300 can have the inverted phase.

[0177] According to an embodiment of the present disclosure, one or more active vibration members in the first group G1 can include one or more vibration devices 511 and / or 541 connected to the support member 300, and one or more active vibration members in the second group G2 can include at least one pair of vibration devices (521, 522) and / or (531, 532) intersecting one vibration device 511 and / or 541 in the first group G1 and spaced apart from each other at the intersection portion 501.

[0178] The apparatus or vibration apparatus 500 according to another embodiment of the present disclosure can further include a fourth elastic member 590.

[0179] The fourth elastic member 590 can be connected between the support member (or first member) 300 and the fourth active vibration member 540. For example, the fourth elastic member 590 can be connected between the support member 300 and the first and second peripheral portions of the fourth active vibration member 540. Accordingly, the first and second peripheral portions of the fourth active vibration member 540 can be connected to the support member 300 through the fourth elastic member 590.

[0180] The fourth elastic member 590 according to an embodiment of the present disclosure can include a 4-1 elastic member 591 and a 4-2 elastic member 592. For example, the fourth elastic member 590 can support a fourth elastic portion or a fourth elastic support portion. For example, the 4-1 elastic member 591 and the 4-2 elastic member 592 can be a pair of fourth elastic members or a pair of fourth elastic members. In one or more aspects of the present disclosure, the 4-1 elastic member 591 and the 4-2 elastic member 592 can be a seventh elastic member and an eighth elastic member, but embodiments of the present disclosure are not limited to the designations such as "4-1" and "4-2".

[0181] 4-1 elastic member (or 4-1 elastic portion) 591 can be connected between the support member 300 and the first peripheral portion of the fourth vibration device 541. The 4-1 elastic member 591 can elastically or flexibly support the first peripheral portion of the fourth vibration device 541. The 4-1 elastic member 591 can be configured of, or configured as, substantially the same elastic body as the 1-1 elastic member 561 of the first elastic member 560 described above with reference to FIGS. 1A to 1C, and thus a repeated description of the elastic body can be omitted. Figure 2 and Figure 3 The 4-1 elastic member 591 can be configured of, or configured as, substantially the same elastic body as the 1-1 elastic member 561 of the first elastic member 560 described above with reference to FIGS. 1A to 1C, and thus a repeated description of the elastic body can be omitted.

[0182] 4-2 elastic member (or 4-2 elastic portion) 592 can be connected between the support member 300 and the second peripheral portion of the fourth vibration device 541. The 4-2 elastic member 592 can elastically or flexibly support the second peripheral portion of the fourth vibration device 541. The 4-2 elastic member 592 can be configured of, or configured as, substantially the same elastic body as the 1-2 elastic member 562 of the first elastic member 560 described above with reference to FIGS. 1A to 1C, and thus a repeated description of the elastic body can be omitted. Figure 2 and Figure 3 The 4-2 elastic member 592 can be configured of, or configured as, substantially the same elastic body as the 1-2 elastic member 562 of the first elastic member 560 described above with reference to FIGS. 1A to 1C, and thus a repeated description of the elastic body can be omitted.

[0183] The fourth elastic member 590 or the 4-1 elastic member 591 and the 4-2 elastic member 592 can increase the mass (or weight) of the fourth vibration device 541, and thus can function as a mass member (or mass body) to lower the resonance frequency (or natural frequency) of the fourth vibration device 541. This can be substantially the same as the first elastic member 560, and thus a repeated description thereof can be omitted.

[0184] According to another embodiment of the present disclosure, the first and second peripheral portions of one or more vibration devices 511 and 541 configured in the active vibration member of the first group G1 can be connected to the support member 300 through at least one pair of first elastic members (561, 562) and (591, 592). The second peripheral portion of each of at least one pair of vibration devices (521, 522) and (531, 532) provided in the active vibration member of the second group G2 can be connected to the passive vibration member 100 through at least one pair of second elastic members (571, 572) and (581, 582).

[0185] In the apparatus or vibration apparatus 500 according to another embodiment of the present disclosure, each of the first and second adhesive members 551 and 552 can be configured to have a polygonal columnar shape or a circular columnar shape having a size smaller than or equal to that of the central portion (or intersection portion 501) of the first vibration device 511.

[0186] In the device or the vibration device 500 according to another embodiment of the disclosure, the mass member 555 can be configured to have a polygonal column shape or a circular column shape having a size smaller than or equal to a center portion (or an intersection portion 501) of the first vibration means 511.

[0187] The mass member 555 according to another embodiment of the disclosure can be disposed between the first group G1 and the second group G2. For example, with respect to the thickness direction Z of the passive vibration member 100, the mass member 555 can be disposed between the active vibration member arranged at the uppermost layer of the first group G1 and the active vibration member arranged at the lowermost layer of the second group G2.

[0188] As described above, based on the composite vibration (or combined vibration) of the first active vibration member 510, the second active vibration member 520, the third active vibration member 530, and the fourth active vibration member 540, the vibration device 500 according to another embodiment of the disclosure can have a larger vibration width (or displacement width) than the vibration device described above with reference to FIG. 1. Figures 1 to 12 For example, the vibrations generated in each of the vibration means 511, 521, 522, 531, and 532 configured in the first active vibration member 510, the second active vibration member 520, the third active vibration member 530, and the fourth active vibration member 540 can be reinforced with each other. Accordingly, the displacement amount (or displacement width) of the passive vibration member 100 can be further increased, and thus, the sound characteristics and the sound pressure level characteristics of the bass sound band (e.g., an ultra-low sound band (or an ultra-low sound band) of 100 Hz or less) generated based on the vibration of the passive vibration member 100 can be further enhanced.

[0189] The mass member 555 according to another embodiment of the disclosure can further include one or more auxiliary mass members 557 connected to one or more of the first group G1 and the second group G2. The one or more auxiliary mass members 557 can be configured to increase the mass (or weight) of each of the first vibration means 511, the 2-1 vibration means 521 and the 2-2 vibration means 522, the 3-1 vibration means 531 and the 3-2 vibration means 532, and the fourth vibration means 541.

[0190] According to another embodiment of this disclosure, one or more auxiliary mass members 557 may be disposed at one or more of the following locations: the rear center portion of the active vibrating member disposed at the lowest layer of the first group G1, and the front center portion of the active vibrating member disposed at the uppermost layer of the second group G2 relative to the thickness direction Z of the passive vibrating member 100. One or more auxiliary mass members 557 may comprise the same elastic material 555 as the mass member. One or more auxiliary mass members 557 may be configured to have a polygonal columnar shape or a circular columnar shape, having a size less than or equal to the size of the intersecting portion 501.

[0191] Therefore, the apparatus or vibration device 500 according to another embodiment of the present disclosure may include mass members 555 and 557 disposed at one or more of the following locations: a portion between the active vibration member disposed at the uppermost layer of the first group G1 and the active vibration member disposed at the lowermost layer of the second group G2, the rear center portion of the active vibration member disposed at the lowermost layer of the first group G1, and the front center portion of the active vibration member disposed at the uppermost layer of the second group G2, and thus, the sound characteristics and sound pressure level characteristics of the 100Hz or lower sub-bass tone vocal cords (or sub-bass tone vocal cords) generated based on the vibration of the passive vibration member 100 may be further enhanced.

[0192] Figure 15 It is along Figure 1 Another cross-sectional view taken from line I-I'. Figure 15 It is shown in the reference above. Figures 1 to 14 The described apparatus includes an embodiment in which multiple vibration devices are configured (or provided). Therefore, in the following description, elements other than the multiple vibration devices and related components may be referred to by similar reference numerals, and repeated descriptions of these elements may be omitted.

[0193] Reference Figure 15 According to another embodiment of the present disclosure, the apparatus may include a plurality of vibration devices 500-1 to 500-n connected between the passive vibration member 100 and the support member 300.

[0194] According to another embodiment of this disclosure, each of the plurality of vibration devices 500-1 to 500-n can be configured as one of the following: (refer to above) Figures 1 to 5 The described vibration device 500, as referenced above. Figure 6 and Figure 8 The described vibration device 500, as referenced above. Figure 9 The described vibration device 500, as referenced above. Figures 10 to 12 The described vibration device 500, and the above reference Figure 13 and Figure 15The described vibration device 500. For example, each of the plurality of vibration devices 500-1 to 500-n can be configured as the vibration device described above with reference to Figures 1 to 15 The described vibration device 500. For example, each of the plurality of vibration devices 500-1 to 500-n can be configured as the vibration device described above with reference to

[0195] According to another embodiment of the disclosure, the plurality of vibration devices 500-1 to 500-n can be divided (or classified) into or can include a first device group and a second device group, or can include a first device group and a second device group. Each of the first device group and the second device group can include one or more of the plurality of vibration devices 500-1 to 500-n. For example, one or more of the plurality of vibration devices 500-1 to 500-n can be included in the first device group, and one or more other vibration devices of the plurality of vibration devices 500-1 to 500-n other than the one or more vibration devices included in the first device group can be included in the second device group. For example, the first device group can be a first vibration portion, a first vibration group, or a first driving group, and the second device group can be a second vibration portion, a second vibration group, or a second driving group.

[0196] The number of vibration devices 500-1 to 500-n in the first device group can be equal to or different from the number of vibration devices 500-1 to 500-n in the second device group.

[0197] According to another embodiment of the disclosure, the plurality of vibration devices 500-1 to 500-n can be divided (or classified) into or can include a first device group and a second device group, or can include a first device group and a second device group. For example, with respect to the arrangement positions disposed along the first direction X and / or the second direction Y, odd-numbered vibration devices 500-1, 500-3, and so on of the plurality of vibration devices 500-1 to 500-n can be included in the first device group, and even-numbered vibration devices 500-2, 500-4, …, and 500-n of the plurality of vibration devices 500-1 to 500-n can be included in the second device group.

[0198] According to another embodiment of the present disclosure, the passive vibration member 100 can include a first area Al and a second area A2 with respect to the center line CL. For example, the first area Al can be a left area of the passive vibration member 100, and the second area A2 can be a right area of the passive vibration member 100. Accordingly, one or more of the vibration devices 500-1, 500-2, 500-3, etc. of the plurality of vibration devices 500-1 to 500-n disposed at the first area Al of the passive vibration member 100 can be included in a first device group, and one or more of the vibration devices 500-1, 500-2, …, and 500-n of the plurality of vibration devices 500-1 to 500-n disposed at the second area A2 of the passive vibration member 100 can be included in a second device group.

[0199] According to another embodiment of the present disclosure, a driving signal applied to one or more vibration devices in the first device group can be equal to a driving signal applied to one or more vibration devices in the second device group. For example, in the one or more vibration devices in the first device group, a driving signal applied to one or more active vibration members in the first group of the plurality of active vibration members and a driving signal applied to one or more active vibration members in the second group of the plurality of active vibration members can have the same phase, and in the one or more vibration devices in the second device group, a driving signal applied to one or more active vibration members in the first group of the plurality of active vibration members and a driving signal applied to one or more active vibration members in the second group of the plurality of active vibration members can have the same phase.

[0200] According to another embodiment of the present disclosure, a driving signal applied to one or more vibration devices in the first device group can be different from a driving signal applied to one or more vibration devices in the second device group. For example, in the one or more vibration devices in the first device group, a driving signal applied to one or more active vibration members in the first group of the plurality of active vibration members and a driving signal applied to one or more active vibration members in the second group of the plurality of active vibration members can have the same phase, and in the one or more vibration devices in the second device group, a driving signal applied to one or more active vibration members in the first group of the plurality of active vibration members and a driving signal applied to one or more active vibration members in the second group of the plurality of active vibration members can have opposite phases (or be in anti-phase).

[0201] When the driving signals applied to the one or more active vibration members in the first group and the driving signals applied to the one or more active vibration members in the second group have the same phase in each of the plurality of vibration devices 500-1 to 500-n, the vibration width (or displacement width) of the vibration device can be significantly increased, thereby enhancing the sound characteristics and sound pressure level characteristics of the low-pitched sound band generated based on the vibration of the passive vibration member 100. Accordingly, the driving signals applied to the one or more vibration devices in the first device group and the driving signals applied to the one or more vibration devices in the second device group can be changed (or controlled) to be equal or different based on the sound source. For example, when a sound of 100 Hz or less is included in the sound source, the driving signals applied to the plurality of active vibration members provided in the plurality of vibration devices 500-1 to 500-n can be changed (or controlled) to all have the same phase.

[0202] As described above, the device according to another embodiment of the disclosure can change (or control) the phase of the driving signals applied to each of the plurality of vibration devices 500-1 to 500-n to be in-phase or anti-phase based on the sound source, and thus, the device can output (or generate) a sound optimized for the sound source or a sound corresponding to the sound source based on the vibration of the passive vibration member 100.

[0203] Figure 16 is a graph showing the output characteristics of the sound of the low-pitched sound band in the device according to the embodiment of the disclosure and the device according to the experimental example. In Figure 16 , the horizontal axis represents the frequency (Hz), and the vertical axis represents the amplitude. The amplitude is a number (or numeral) represented as a relative value with respect to the maximum amplitude. In addition, Figure 16 a log-log scale graph is shown. Figure 16 The dotted line in Figure 16 represents the output characteristics of the sound of the low-pitched sound band in the device according to the experimental example, Figure 2 and Figure 3 described above with reference to

[0204] As Figure 16As shown, compared to the device according to the experimental example, it can be seen that the amplitude at a frequency of about 300 Hz or less is increased in the device according to the embodiment of the disclosure. For example, at a frequency of about 100 Hz or less, it can be seen that the device according to the experimental example has an amplitude of about 10 or less, and the device according to the embodiment of the disclosure has an amplitude of about 30 or more. In addition, at a frequency of about 70 Hz or less, it can be seen that the device according to the experimental example has an amplitude of about 5, and the device according to the embodiment of the disclosure has an amplitude of about 30. Thus, compared to the experimental example, the device according to the embodiment of the disclosure can have a relatively high amplitude at a frequency of about 300 Hz or less, and thus can enhance the sound characteristic and the sound pressure level characteristic at a frequency of about 300 Hz or less.

[0205] According to the embodiment of the disclosure, it is possible to provide a vibration device in which a sound characteristic and a sound pressure level characteristic of an ultra-low tone sound band (or an ultra-low tone sound band) are enhanced based on a composite vibration (or a combined vibration) of a plurality of vibration members, and a device including the same.

[0206] The vibration device according to one or more embodiments of the disclosure can be applied to a vibration device provided at (or, in or at) a device. The device according to one or more embodiments of the disclosure can be applied to a mobile device, a video phone, a smart watch, a watch phone, a wearable device, a foldable device, a rollable device, a bendable device, a flexible device, a curved device, a sliding device, a variable device, an electronic notepad, an electronic book, a portable multimedia player (PMP), a personal digital assistant (PDA), an MP3 player, a mobile medical device, a desktop personal computer (PC), a laptop PC, a netbook computer, a workstation, a navigation device, a car navigation device, a car display device, a car device, a theater device, a theater display device, a TV, a wallpaper display device, a signage device, a game device, a notebook computer, a monitor, a camera, a camcorder, a home appliance, etc. In addition, the vibration device according to one or more embodiments of the disclosure can be applied to an organic light emitting illumination device or an inorganic light emitting illumination device. When the vibration device according to one or more embodiments of the disclosure is applied to an illumination device, the illumination device can be used as an illumination device and a speaker. In addition, when the vibration device according to one or more embodiments of the disclosure is applied to a mobile device or the like, the vibration device can be used as one or more of a speaker, a receiver, and a haptic device, but the embodiments of the disclosure are not limited thereto.

[0207] In one or more aspects, the terms "passive" for a passive vibration member and "active" for an active vibration member are used merely for the convenience of distinguishing between the passive vibration member and the active vibration member. In one or more aspects, the term "passive" does not require the passive vibration member to be (or include) a passive element. In one or more aspects, the term "active" does not require the active vibration member to be (or include) an active element.

[0208] Devices and features according to one or more embodiments of the present disclosure are described below.

[0209] A device for outputting vibrations according to one or more embodiments of the present disclosure can include a passive vibration member, a support member overlapping the passive vibration member, and a vibration device between the passive vibration member and the support member, the vibration device being configured to include a first active vibration member and a second active vibration member connected to and intersecting each other. The first active vibration member can be connected to a first member of one of the passive vibration member and the support member, and the second active vibration member can be connected to a second member of the other of the passive vibration member and the support member.

[0210] According to one or more embodiments of the present disclosure, the vibration device can include an adhesive member between the first active vibration member and the second active vibration member, a first elastic member between the first active vibration member and the first member, and a second elastic member between the second active vibration member and the second member.

[0211] According to one or more embodiments of the present disclosure, the vibration device can further include a mass member between the adhesive member and the second active vibration member.

[0212] According to one or more embodiments of the present disclosure, the second active vibration member can include one active vibration member (e.g., a 2-1 active vibration member) and another active vibration member (e.g., a 2-2 active vibration member), each active vibration member being connected to the first active vibration member through the adhesive member, and each active vibration member being connected to the second member through the second elastic member, and the one active vibration member (e.g., the 2-1 active vibration member) and the another active vibration member (e.g., the 2-2 active vibration member) can be disposed in a direction intersecting the first active vibration member and spaced apart from each other above the first active vibration member.

[0213] According to one or more embodiments of the present disclosure, the first active vibration member can include a first vibration device, the one active vibration member (e.g., 2-1 active vibration member) can include one vibration device (e.g., 2-1 vibration device), and the other active vibration member (e.g., 2-2 active vibration member) can include another vibration device (e.g., 2-2 vibration device). Each of the one vibration device (e.g., 2-1 vibration device) and the other vibration device (e.g., 2-2 vibration device) can have a length equal to or different from a length of the first vibration device.

[0214] According to one or more embodiments of the present disclosure, an adhesive member can be disposed between the first peripheral portion of the one vibration device (e.g., 2-1 vibration device) and the first vibration device, and between the first peripheral portion of the other vibration device (e.g., 2-2 vibration device) and the first vibration device.

[0215] According to one or more embodiments of the present disclosure, the first elastic member can include one elastic member (e.g., 1-1 elastic member) between the first peripheral portion of the first vibration device and the first member, and another elastic member (e.g., 1-2 elastic member) between the second peripheral portion of the first vibration device and the first member, the second elastic member can include one additional elastic member (e.g., 2-1 elastic member) between the second peripheral portion of the one vibration device (e.g., 2-1 vibration device) and the second member, and another additional elastic member (e.g., 2-2 elastic member) between the second peripheral portion of the other vibration device (e.g., 2-2 vibration device) and the second member.

[0216] According to one or more embodiments of the present disclosure, the vibration device can further include a mass member between the adhesive member and the second active vibration member, and the mass member can include a first mass member (e.g., 1-1 mass member) between the adhesive member and the first peripheral portion of the one vibration device (e.g., 2-1 vibration device), and a second mass member (e.g., 1-2 mass member) between the adhesive member and the first peripheral portion of the other vibration device (e.g., 2-2 vibration device).

[0217] According to one or more embodiments of the present disclosure, each of the first mass member (e.g., 1-1 mass member) and the second mass member (e.g., 1-2 mass member) can include an elastic material having a strength less than a bending strength of each of the first active vibration member and the second active vibration member.

[0218] According to one or more embodiments of the present disclosure, a driving signal applied to the first active vibration member can have the same or opposite phase as a driving signal applied to the second active vibration member.

[0219] A device for outputting vibrations according to one or more embodiments of the present disclosure can include a passive vibration member, a support member overlapping the passive vibration member, and a plurality of vibration devices disposed between the passive vibration member and the support member. Each of the plurality of vibration devices can include a plurality of active vibration members disposed to intersect each other at an intersection portion, and a plurality of adhesive members each disposed between two adjacent active vibration members of the plurality of active vibration members at the intersection portion. The plurality of active vibration members can be divided into a first group and a second group, each group including one or more active vibration members, one or more active vibration members in the first group can be connected to the support member, and one or more active vibration members in the second group can be connected to the passive vibration member.

[0220] According to one or more embodiments of the present disclosure, the number of active vibration members in the first group can be equal to or different from the number of active vibration members in the second group.

[0221] According to one or more embodiments of the present disclosure, the plurality of vibration devices can be divided into a first device group and a second device group, each device group including one or more vibration devices, and the number of vibration devices in the first device group can be equal to or different from the number of vibration devices in the second device group.

[0222] According to one or more embodiments of the present disclosure, a driving signal applied to one or more vibration devices in the first device group can be the same as or different from a driving signal applied to one or more vibration devices in the second device group.

[0223] According to one or more embodiments of the present disclosure, among one or more vibration devices in the first device group, a driving signal applied to one or more active vibration members in the first group can have the same phase as a driving signal applied to one or more active vibration members in the second group. Among one or more vibration devices in the second device group, a driving signal applied to one or more active vibration members in the first group can have the opposite phase as a driving signal applied to one or more active vibration members in the second group.

[0224] According to one or more embodiments of the present disclosure, the passive vibration member can include a first region and a second region, one or more vibration devices of the first device group being disposed at the first region of the passive vibration member, and one or more vibration devices of the second device group can be disposed at the second region of the passive vibration member.

[0225] According to one or more embodiments of the present disclosure, the one or more active vibration members of the first group can include one or more vibration devices connected to the support member, and the one or more active vibration members of the second group can include at least one pair of vibration devices intersecting the one or more vibration devices, and the at least one pair of vibration devices are spaced apart from each other at the intersection portion.

[0226] According to one or more embodiments of the present disclosure, a driving signal applied to the one or more vibration devices can have the same or opposite phase as a phase of a driving signal applied to the pair of vibration devices.

[0227] According to one or more embodiments of the present disclosure, each of the pair of vibration devices can include a first peripheral portion disposed at the intersection portion and a second peripheral portion connected to the passive vibration member. Each of the plurality of vibration devices can include at least one pair of first elastic members connected between the support member and each of the first and second peripheral portions of the one or more vibration devices, and at least one pair of second elastic members connected between the passive vibration member and the second peripheral portion of each of the pair of vibration devices.

[0228] According to one or more embodiments of the present disclosure, each of the plurality of vibration devices can further include a mass member disposed at one or more of the following: the intersection portion between the first group and the second group, a rear center portion of the active vibration member disposed at the lowermost layer of the first group, and a front center portion of the active vibration member disposed at the uppermost layer of the second group.

[0229] According to one or more embodiments of the present disclosure, an electronic device can include a device that can be configured to function as one or more of a speaker, a receiver, and a haptic device in the electronic device. The device can include a passive vibration member, a support member overlapping the passive vibration member, and a vibration device between the passive vibration member and the support member, the vibration device being configured to include a first active vibration member and a second active vibration member connected to each other and intersecting each other. The first active vibration member can be connected to a first member of one of the passive vibration member and the support member, and the second active vibration member can be connected to a second member of the other of the passive vibration member and the support member.

[0230] It will be apparent to those skilled in the art that various modifications and variations can be made to the disclosed disclosure without departing from the spirit or scope of the disclosure. Thus, it is intended that the disclosure cover the modifications and variations of the disclosure provided they come within the scope of the appended claims and their equivalents.

Claims

1. An apparatus for outputting vibrations, comprising: a passive vibration member; a support member overlapping the passive vibration member; and a vibration device between the passive vibration member and the support member, the vibration device being configured to include a first active vibration member and a second active vibration member connected to and intersecting each other, wherein the first active vibration member is connected to a first member of one of the passive vibration member and the support member, wherein the second active vibration member is connected to a second member of the other of the passive vibration member and the support member, wherein the vibration device further comprises: a first elastic member directly connected between the first active vibration member and the first member; and a second elastic member directly connected between the second active vibration member and the second member, and wherein the first elastic member and the second elastic member do not overlap. the vibration device further comprises:

2. The apparatus of claim 1, wherein, an adhesive member between the first active vibration member and the second active vibration member. the vibration device further comprises a mass member between the adhesive member and the second active vibration member.

3. The apparatus of claim 2, wherein, the second active vibration member includes one active vibration member and another active vibration member, both of which are connected to the first active vibration member through the adhesive member and both of which are connected to the second member through the second elastic member, and 4. The apparatus of claim 2, wherein, wherein the one active vibration member and the another active vibration member are disposed in a direction intersecting the first active vibration member and spaced apart from each other above the first active vibration member.

5. The apparatus of claim 4, wherein, the first active vibration member includes a first vibration device, the one active vibration member includes one vibration device, the another active vibration member includes another vibration device, and each of the one vibration device and the another vibration device has a length equal to a length of the first vibration device. the adhesive member is disposed between a first peripheral portion of the one vibration device and the first vibration device and between a first peripheral portion of the another vibration device and the first vibration device.

6. The apparatus of claim 5, wherein, 7. The apparatus of claim 5, wherein, the first elastic member includes one elastic member between a first peripheral portion of the first vibration device and the first member and another elastic member between a second peripheral portion of the first vibration device and the first member, and the second elastic member includes one additional elastic member between a second peripheral portion of the one vibration device and the second member and another additional elastic member between a second peripheral portion of the another vibration device and the second member.

8. The apparatus of claim 6, wherein, the vibration device further comprises a mass member between the adhesive member and the second active vibration member, and the mass member includes: ​ a first mass member between the adhesive member and a first peripheral portion of the one vibration device; and a second mass member between the adhesive member and a first peripheral portion of the other vibration device.

9. The apparatus of claim 8, wherein, Each of the first mass member and the second mass member includes an elastic material having a strength less than a bending strength of each of the first active vibration member and the second active vibration member.

10. The apparatus of any one of claims 1 to 9, wherein, A driving signal applied to the first active vibration member has a same phase as a phase of a driving signal applied to the second active vibration member.

11. An apparatus for outputting vibration, comprising: a passive vibration member; a support member overlapping the passive vibration member; and a plurality of vibration devices disposed between the passive vibration member and the support member, wherein each of the plurality of vibration devices includes: a plurality of active vibration members disposed to intersect each other at an intersection portion; and a plurality of adhesive members each disposed between two adjacent active vibration members of the plurality of active vibration members at the intersection portion, wherein the plurality of active vibration members is divided into a first group and a second group, each of the first group and the second group including one or more active vibration members, wherein the one or more active vibration members of the first group are connected to the support member, and the one or more active vibration members of the second group are connected to the passive vibration member, wherein each of the plurality of vibration devices further includes: at least one pair of first elastic members directly connected between the one or more active vibration members of the first group and the support member; and at least one pair of second elastic members directly connected between the one or more active vibration members of the second group and the passive vibration member, and wherein the first elastic members and the second elastic members do not overlap.

12. The apparatus of claim 11, wherein, A number of active vibration members in the first group is different from a number of active vibration members in the second group.

13. The apparatus of claim 11, wherein, The plurality of vibration devices is divided into a first device group and a second device group, each of the first device group and the second device group including one or more vibration devices, and wherein a number of vibration devices in the first device group is different from a number of vibration devices in the second device group.

14. The apparatus of claim 13, wherein, A driving signal applied to the one or more vibration devices in the first device group is the same as a driving signal applied to the one or more vibration devices in the second device group.

15. The apparatus according to claim 13, wherein, in the one or more vibration devices in the first device group, a driving signal applied to the one or more active vibration members in the first group has a same phase as a phase of a driving signal applied to the one or more active vibration members in the second group; and and In one or more vibrating devices in the second set of devices, a drive signal applied to one or more active vibrating members in the first set has an opposite phase to a phase of a drive signal applied to one or more active vibrating members in the second set.

16. The apparatus of claim 13, wherein, the passive vibrating member includes a first region and a second region, one or more vibrating devices in the first set of devices are disposed at the first region of the passive vibrating member, and one or more vibrating devices in the second set of devices are disposed at the second region of the passive vibrating member.

17. The apparatus of one of claims 11 to 16, wherein, one or more active vibrating members in the first set include one or more vibrating means connected to the support member, and one or more active vibrating members in the second set include at least one pair of vibrating means intersecting the one or more vibrating means and spaced apart from each other at the intersection.

18. The apparatus of claim 17, wherein, a drive signal applied to the one or more vibrating means has an opposite phase to a phase of a drive signal applied to the pair of vibrating means.

19. The apparatus of claim 17, wherein, each of the pair of vibrating means includes a first peripheral portion disposed at the intersection, and a second peripheral portion connected to the passive vibrating member, wherein the at least one pair of first elastic members are connected between the support member and each of the first and second peripheral portions of the one or more vibrating means; and wherein the at least one pair of second elastic members are connected between the passive vibrating member and the second peripheral portion of each of the pair of vibrating means.

20. The apparatus of one of claims 11 to 16, wherein, each of the plurality of vibrating devices further includes a mass member disposed at one or more of: an intersection between the first set and the second set, a rear center portion of an active vibrating member disposed at a lowermost layer of the first set, and a front center portion of an active vibrating member disposed at an uppermost layer of the second set.

21. An electronic device comprising the apparatus of one of claims 1-20, wherein, The apparatus of one of claims 1 to 20 is configured to function as one or more of a speaker, a receiver, and a haptic device in the electronic device.

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