Device for outputting sound

Abstract

This disclosure relates to a device for outputting sound. According to one embodiment of this disclosure, the device includes: a vibration device connected to the rear surface of a passive vibration member and a support member at the rear surface of the passive vibration member, wherein the vibration device includes: a first vibration portion; a second vibration portion connected to the periphery of the first vibration portion; and a connecting portion connected to the periphery of the second vibration portion and the rear surface of the passive vibration member.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit and priority of Japanese Patent Application No. 2021-214047, filed on December 28, 2021, the entire contents of which are incorporated herein by reference.

[0003] background Technical Field

[0004] This disclosure relates to devices, and more specifically, to devices for outputting sound. Background Technology

[0005] The device includes a separate loudspeaker or sound device for providing sound. This sound device includes a vibration 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 used in a variety of applications.

[0006] Piezoelectric devices used in piezoelectric loudspeakers are limited in terms of vibration width (or displacement width), and as a result, there are problems with enhancing the sound characteristics and sound pressure level characteristics of various tonal vocal cords (e.g., low-to-mid tone vocal cords or mid-to-high tone vocal cords). Summary of the Invention

[0007] Therefore, this disclosure is intended to provide a device that substantially eliminates one or more problems caused by the limitations and disadvantages of the prior art.

[0008] The inventors of this disclosure have recognized the aforementioned technical problems and have conducted various experiments to realize a vibration device capable of enhancing the sound pressure level of various vocal cords. Through these experiments, the inventors have invented a device comprising a novel vibration mechanism that can enhance the sound pressure level of low-pitched vocal cords.

[0009] One aspect of this disclosure is intended to provide a device that can enhance the acoustic characteristics and sound pressure level characteristics of vocal cords of various tones generated by the vibration of passively vibrating components.

[0010] Another aspect of this disclosure is intended to provide a device that can enhance the sound characteristics and sound pressure level characteristics of mid-to-low pitch vocal cords or mid-to-high pitch vocal cords generated by vibrations of passively vibrating components.

[0011] Additional features and aspects will be set forth in part in the description which follows, and will also be apparent in part from the description, or may be learned by practice of the inventive concept provided herein. Other features and aspects of the inventive concept may be realized and obtained by means of structures particularly pointed out in the written description or structures which may be derived therefrom, as well as by the claims and drawings thereof.

[0012] To achieve these and other aspects of the inventive concept, as embodied and broadly described herein, a device for outputting sound includes: a vibration device connected to the rear surface of a passive vibration member, and a support member at the rear surface of the passive vibration member, the vibration device including: a first vibration portion; a second vibration portion connected to the periphery of the first vibration portion; and a connecting portion connected to the periphery of the second vibration portion and the rear surface of the passive vibration member.

[0013] In another aspect, a device for outputting sound includes: a plurality of vibrating devices connected to the rear surface of a passive vibrating member; and a support member located at the rear surface of the passive vibrating member, each of the plurality of vibrating devices including: a first active vibrating member; a second-1 active vibrating member and a second-2 active vibrating member connected parallel to the periphery of the first active vibrating member between the second-1 active vibrating member and the second-2 active vibrating member; and a connecting portion connected to the rear surface of the passive vibrating member and each of the second-1 active vibrating member and the second-2 active vibrating member.

[0014] According to one aspect of this disclosure, an apparatus for outputting sound is provided, comprising: a passive vibrating member; a vibrating device connected to a rear surface of the passive vibrating member; and a support member at the rear surface of the passive vibrating member, wherein the vibrating device includes three active vibrating members, wherein a middle active vibrating member overlaps with and is connected to portions of each of the two outer active vibrating members.

[0015] According to embodiments of this disclosure, an apparatus may be provided for enhancing the sound pressure level of low-pitched vocal cords generated by the vibration of a passively vibrating member.

[0016] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon examination of the following drawings and detailed description. All such additional systems, methods, features, and advantages are intended to be included in this specification, within the scope of this disclosure, and protected by the appended claims. Nothing in this section should be construed as limiting these claims. Additional aspects and advantages are discussed below in conjunction with various aspects of this disclosure.

[0017] It should be understood that both the foregoing general description of this disclosure and the following detailed description are exemplary and illustrative, and are intended to provide further explanation of the claimed disclosure. Attached Figure Description

[0018] The accompanying drawings are included to provide a further understanding of this disclosure and are incorporated in and constitute a part of this application. The drawings illustrate various aspects and implementations of this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0019] Figure 1 An apparatus according to an embodiment of the present disclosure is shown.

[0020] Figure 2 It is along Figure 1 The cross-sectional view taken by line A-A' is shown.

[0021] Figure 3 It shows that according to Figure 2 The vibration device of the first embodiment of the present disclosure is shown.

[0022] Figure 4 A vibration device according to an embodiment of the present disclosure is shown.

[0023] Figure 5A and Figure 5B It shows Figure 4 The first and second modified embodiments of the piezoelectric layer are shown.

[0024] Figure 6A and Figure 6B It shows the application based on Figure 2 and Figure 3 The displacement point and vibration width (or displacement width) of the vibration device are shown as the driving signal for each of the first and second vibration parts.

[0025] Figure 7 It is along Figure 1 Another cross-sectional view taken from line A-A' shown.

[0026] Figure 8 A vibration device according to a second embodiment of the present disclosure is shown.

[0027] Figure 9 A vibration device according to a third embodiment of the present disclosure is shown.

[0028] Figure 10 A vibration device according to a fourth embodiment of the present disclosure is shown.

[0029] Figure 11 A vibration device according to a fifth embodiment of the present disclosure is shown.

[0030] Figure 12 This is a block diagram illustrating a vibration drive circuit according to a first embodiment of the present disclosure.

[0031] Figure 13This is a block diagram illustrating a vibration drive circuit according to a second embodiment of the present disclosure.

[0032] Figure 14 It is along Figure 1 Another cross-sectional view taken from line A-A' shown.

[0033] Figure 15 This is a graph showing the sound output characteristics of the device according to the first embodiment of the present disclosure.

[0034] Throughout the accompanying drawings and detailed description, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustration, and convenience, the relative dimensions and descriptions of these elements may be exaggerated. Detailed Implementation

[0035] Implementations of this disclosure will now be described in detail, examples of which are illustrated in the accompanying drawings. In the following description, detailed descriptions of well-known functions or configurations relevant to this document are omitted when necessary.

[0036] To obscure the essence of the inventive concept, a detailed description thereof will be omitted. The described progress of processing step 5 and / or operation is illustrative; however, steps and / or operations that must occur in a specific order are not limited to these.

[0037] In addition to the above, the order of steps and / or operations is not limited to the order set forth herein, but may be varied as is known in the art. The same reference numerals always denote the same elements. The names of the various elements used in the following description are chosen solely for convenience of writing the specification and may therefore differ from the names used in the actual product.

[0038] The advantages and features of this disclosure, and its implementation methods, will be illustrated by the following description of embodiments with reference to the accompanying drawings. However, this disclosure may be implemented in various 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 scope of this disclosure to those skilled in the art. Furthermore, this disclosure is defined only by the scope of the claims.

[0039] 5. The shapes, dimensions, ratios, angles, and numbers disclosed in the accompanying drawings used to describe embodiments of this disclosure are merely examples, and therefore, this disclosure is not limited to the details shown. Similar reference numerals always refer to similar elements. In the following description, detailed descriptions of relevant known functions or configurations will be omitted where it is determined that such detailed descriptions unnecessarily obscure the essential points of this disclosure.

[0040] The terms “comprising,” “having,” and “including” as described in this specification may be used to indicate the addition of another component unless “only” is used. Unless otherwise stated, the singular forms of these terms may be used.

[0041] Including plural forms.

[0042] When interpreting a component, it is interpreted as including a range of errors or tolerances, even though there is no explicit description of such a range of errors or tolerances.

[0043] When describing positional relationships, for example, when the positional relationship between two parts is described as such as "on top of," "above," "below," and "beside," one or...

[0044] Multiple additional components may be disposed between these two components, unless more restrictive terms such as “only” or “directly” are used. In the description of the embodiments, when a structure is described as being “above”, “below”, or “under” another structure, the description should be interpreted to include cases where these structures are in contact with each other and cases where a third structure is disposed therebetween.

[0045] 0 When describing temporal relationships, for example, when time sequence is described as "after", "following", etc.

[0046] When using terms like "next" and "before," discontinuous situations can be included unless more restrictive terms such as "exactly," "immediately after," or "directly" are used.

[0047] It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0048] In describing the elements of this disclosure, the terms “first,” “second,” “A,” “B,” “(a),” “(b),” etc., may be used. These terms are intended to identify the corresponding element from other elements, and the basis, order, or number of the corresponding elements shall not be limited by these terms. The expression that an element is “connected,” “coupled,” or “attached” to another element or layer, which may be directly connected or attached to another element or layer or indirectly connected or attached to another element or layer, wherein one or more intermediate elements or layers are “set” or “inserted” between the elements or layers, unless otherwise stated.

[0049] The term "at least one" should be understood to include any and all combinations of one or more related listed items. For example, "at least one of the first, second, and third items" means a combination of all items drawn from two or more of the first, second, and third items, as well as the first, second, or third item.

[0050] As will be fully understood by those skilled in the art, the features of the various embodiments of this disclosure may be coupled or combined with each other in part or in whole, and may interoperate with each other and be technically driven in various ways. Embodiments of this disclosure may be performed independently of each other, or may be performed together in an interdependent relationship.

[0051] In the following, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. Furthermore, for ease of description, the scale, dimensions, and thickness of each element shown in the drawings differ from actual scale, and therefore, embodiments of the present disclosure are not limited to the scales shown in the drawings.

[0052] Figure 1 An apparatus according to an embodiment of the present disclosure is shown, and Figure 2 It is along Figure 1 The cross-sectional view taken by line A-A' is shown.

[0053] Reference Figure 1 and Figure 2 The device according to the embodiments of this disclosure may include a passive vibration member 100 and a vibration device 200.

[0054] The devices according to embodiments of this disclosure may be display devices, sound devices, sound generating devices, sound bars, analog signs or digital signs, etc., but the embodiments of this disclosure are not limited thereto.

[0055] The display device may include a display panel comprising a plurality of pixels that realize a black / white or color image and a driving component for driving the display panel. For example, the display panel may be an organic light-emitting display panel, a light-emitting diode display panel, an electrophoretic display panel, an electrowetting display panel, a micro-light-emitting diode display panel, or a quantum dot light-emitting display panel, etc., but the embodiments of this disclosure are not limited thereto. For example, in an organic light-emitting display panel, pixels may include organic light-emitting devices such as organic light-emitting layers, and pixels may be sub-pixels that realize any one of a plurality of colors configured in a color image. Therefore, the device according to the first embodiment of this disclosure may include a complete assembly (or complete equipment) comprising a display panel such as an organic light-emitting display panel, a liquid crystal display panel, etc., or a complete electronic device such as a notebook computer, a TV, a computer monitor, including automotive equipment or other types of vehicle equipment, or a mobile electronic device such as a smartphone or tablet.

[0056] Simulated signage can be advertising signs, posters, bulletin boards, etc. Simulated signage can include sign content such as sentences, pictures, and logos. The sign content can be positioned on the passive vibration member 100 of the device to make the sign content visible. For example, the sign content can be directly attached to the passive vibration member 100, and the sign content can be printed or similarly applied to a medium such as paper, which can then be attached to the passive vibration member 100.

[0057] The passive vibration member 100 can vibrate based on the drive (or vibration or displacement) of the vibration device 200. For example, the passive vibration member 100 can generate one or more of vibration and sound based on the drive of the vibration device 200.

[0058] The passive vibration member 100 according to embodiments of this disclosure may be a display panel including a display area (or screen) having a plurality of pixels for displaying black / white or color images. Therefore, the passive vibration member 100 may generate one or more of vibration and sound based on the drive of the vibration device 200. For example, the passive vibration member 100 may vibrate based on the vibration of the vibration device 200 while an image is displayed in the display area, and thus, sound synchronized with the image displayed on the display area may be generated or output.

[0059] According to another embodiment of this disclosure, the passive vibration member 100 may be a non-display panel instead of a display panel. For example, the passive vibration member 100 may be a vibrating plate comprising one or more materials selected from wood, rubber, plastic, flexible glass, fiber, cloth, paper, metal, carbon, mirror, and leather, but the embodiments of this disclosure are not limited thereto.

[0060] The passive vibration member 100 according to the embodiments of this disclosure may be a vibration object, a display member, a display panel, a sign panel, a passive vibration plate, a front cover, a front member, a vibration panel, a sound panel, or a passive vibration panel, but the embodiments of this disclosure are not limited thereto.

[0061] Vibration device 200 can be configured to vibrate passive vibrating member 100. Vibration device 200 can be configured to be connected to the rear surface of passive vibrating member 100. Therefore, vibration device 200 can cause passive vibrating member 100 to vibrate to generate or output one or more of vibrations and sounds based on the vibration of passive vibrating member 100.

[0062] Vibration device 200 can be connected to or coupled to the rear surface of passive vibrating member 100. Vibration device 200 can be configured to vibrate passive vibrating member 100 based on the combined vibration (or displacement) of a plurality of active vibrating members 210 and 230. For example, vibration device 200 may include a plurality of active vibrating members 210 and 230 connected to each other such that their partial overlap is achieved, and can be configured to vibrate passive vibrating member 100 based on the combined vibration (or displacement) of the plurality of active vibrating members 210 and 230. Therefore, the displacement width (or vibration width) of vibration device 200 can be increased based on the combined vibration (or displacement) of the plurality of active vibrating members 210 and 230, and thus the displacement width (or vibration width) of passive vibrating member 100 can be increased or maximized, thereby enhancing the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of passive vibrating member 100.

[0063] The device according to embodiments of this disclosure may further include a support member 300 and a coupling member 350.

[0064] A support member 300 may be disposed on the rear surface 100a of the passive vibration member 100. The support member 300 may be disposed on the rear surface 100a of the passive vibration member 100 to cover the vibration device 200. The support member 300 may be disposed on the rear surface 100a of the passive vibration member 100 to cover both the rear surface 100a of the passive vibration member 100 and all of the vibration device 200. For example, the support member 300 may have the same dimensions as the passive vibration member 100. For example, the support member 300 may cover the entire rear surface of the passive vibration member 100, with a gap space GS therebetween and the vibration device 200. The gap space GS may be provided by a coupling member 350 disposed between the passive vibration member 100 and the support member 300 facing each other. The gap space GS may be referred to as an air gap, a receiving space, a vibration space, or a sound-generating box, but embodiments of this disclosure are not limited thereto.

[0065] The support member 300 may include at least one or more of glass, metal, and plastic materials. For example, the support member 300 may include a stacked structure in which at least one or more of glass, plastic, and metal materials are stacked. For example, the support member 300 may include a material with relatively high stiffness or high hardness compared to the passive vibration member 100. For example, the support member 300 may be a rear structure, support structure, support plate, support cover, rear cover, housing, or rear component, but embodiments of this disclosure are not limited thereto.

[0066] Each of the passive vibration member 100 and the support member 300 may have a square or rectangular shape, but embodiments of this disclosure are not limited thereto, and may have a polygonal, non-polygonal, circular, or elliptical shape. For example, when the device according to another embodiment of this disclosure is applied to a sound device or a soundbar, each of the passive vibration member 100 and the support member 300 may have a rectangular shape in which the length of the long side is twice or more than the length of the short side, but embodiments of this disclosure are not limited thereto.

[0067] The coupling member 350 can be configured to connect 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.

[0068] The coupling member 350 according to embodiments of this disclosure may include an elastic material having adhesive properties and capable of compression and decompression. For example, the coupling member 350 may include double-sided tape, single-sided tape, or double-sided adhesive foam pads, but embodiments of this disclosure are not limited thereto, and may include elastic pads such as rubber pads or silicone pads having adhesive properties and capable of compression and decompression. For example, the coupling member 350 may be formed of an elastomer.

[0069] According to another embodiment of this disclosure, the support member 300 may further include a sidewall portion supporting the rear peripheral portion of the passive vibration member 100. The sidewall portion of the support member 300 may protrude or bend from the front peripheral portion of the support member 300 toward the rear peripheral portion of the passive vibration member 100, and thus, a clearance space GS may be provided between the passive vibration member 100 and the support member 300. For example, a coupling member 350 may be configured to connect the sidewall portion of the support member 300 and the rear peripheral portion of the passive vibration member 100. Therefore, the support member 300 may cover the vibration device 200 and support the rear surface 100a of the passive vibration member 100. For example, the support member 300 may cover the vibration device 200 and support the rear peripheral portion of the passive vibration member 100.

[0070] According to another embodiment of this disclosure, the passive vibration member 100 may further include a sidewall portion connected to the front peripheral portion of the support member 300. The sidewall portion of the passive vibration member 100 may protrude or bend from the rear peripheral portion of the passive vibration member 100 toward the front peripheral portion of the support member 300, and thus, a clearance space GS may be provided between the passive vibration member 100 and the support member 300. The stiffness of the passive vibration member 100 may be increased based on the sidewall portion. For example, a coupling member 350 may be configured to connect between the sidewall portion of the passive vibration member 100 and the front peripheral portion of the support member 300. Therefore, the support member 300 may cover the vibration device 200 and support the rear surface 100a of the passive vibration member 100. For example, the support member 300 may cover the vibration device 200 and support the rear peripheral portion of the passive vibration member 100.

[0071] Figure 3 It shows that according to Figure 2 The vibration device of the first embodiment of the present disclosure is shown.

[0072] Reference Figure 2 and Figure 3 The vibration device 200 according to the first embodiment of the present disclosure may include a first vibration part 210, a second vibration part 230 and a connecting part 250.

[0073] The first vibration portion 210 can be configured to face the rear surface 100a of the passive vibration member 100. For example, the first vibration portion 210 can be disposed between the rear surface 100a of the passive vibration member 100 and the support member 300. For example, the first vibration portion 210 can be disposed between the rear surface 100a of the passive vibration member 100 and the support member 300, so as to be separate from the passive vibration member 100 and not directly connected to the passive vibration member 100. For example, the first vibration portion 210 can be a main vibration portion, a central vibration portion, or a first active vibration portion.

[0074] The first vibration portion 210 according to embodiments of this disclosure may include a first active vibration member 211. The first active vibration member 211 may have a rectangular or square shape. The first active vibration member 211 may be implemented to vibrate (or shift or drive) in a bending shape based on a first drive signal input from an external source.

[0075] The second vibration portion 230 may be connected to or coupled to the periphery of the first vibration portion 210. The second vibration portion 230 may overlap with the periphery of the first vibration portion 210. For example, the second vibration portion 230 may overlap with a portion of the periphery of the first vibration portion 210. For example, the second vibration portion 230 may be connected to or coupled to a portion of the periphery of the first vibration portion 210. For example, the second vibration portion 230 may be a sub-vibration portion, a secondary vibration portion, or a second active vibration portion.

[0076] The second vibration portion 230 may include a plurality of second active vibration members 231 and 232. For example, the second vibration portion 230 may include a second-1st active vibration member 231 and a second-2nd active vibration member 232. For example, the second vibration portion 230 may include 2N (where N is a natural number) second active vibration members 231 and 232. For example, the 2N second active vibration members 231 and 232 may include a second-1st active vibration member 231 and a second-2nd active vibration member 232. For example, the second-1st active vibration member 231 and the second-2nd active vibration member 232 may be a pair of second active vibration members. In this disclosure, the second-1st active vibration member 231 and the second-2nd active vibration member 232 may be a second active vibration member and a third active vibration member, but the embodiments of this disclosure are not limited to the numerals "second-1" and "second-2".

[0077] Each of the second-first active vibration member 231 and the second-second active vibration member 232 may be connected or coupled to the periphery of the first active vibration member 211 in parallel with the central portion (or central region) of the first active vibration member 211. For example, the second-first active vibration member 231 and the second-second active vibration member 232 may be connected or coupled to the periphery of the first active vibration member 211 so as to be symmetrical to the central portion of the first active vibration member 211.

[0078] Each of the second-first active vibration member 231 and the second-second active vibration member 232 may include a first connecting region and a second connecting region, the first connecting region and the second connecting region being parallel or symmetrical to each other with respect to their central portion. The first connecting region may include at least a portion of the first peripheral portion of each of the second-first active vibration member 231 and the second-second active vibration member 232 overlapping with the peripheral portion of the first active vibration member 211. The second connecting region may include at least a portion of the second peripheral portion of each of the second-first active vibration member 231 and the second-second active vibration member 232 connected to the passive vibration member 100.

[0079] According to embodiments of this disclosure, each of the passive vibration member 100 and the support member 300 may have a square or rectangular shape, but embodiments of this disclosure are not limited thereto. For example, each of the second-first active vibration member 231 and the second-second active vibration member 232 may have a polygonal shape, a non-polygonal shape, a circular shape, or an elliptical shape in which the second-first active vibration member 231 and the second-second active vibration member 232 are symmetrical to each other with respect to the central portion of the first active vibration member 211. For example, each of the second-first active vibration member 231 and the second-second active vibration member 232 may be configured to have the same shape and the same dimensions as the first active vibration member 211, but embodiments of this disclosure are not limited thereto. For example, each of the second-first active vibration member 231 and the second-second active vibration member 232 may be configured to have the same shape and different dimensions as the first active vibration member 211, but embodiments of this disclosure are not limited thereto.

[0080] Each of the second-first active vibration member 231 and the second-second active vibration member 232 can be implemented to vibrate (or displace) in a bending shape based on the same second driving signal, but the embodiments of this disclosure are not limited thereto. For example, the second-first active vibration member 231 and the second-second active vibration member 232 can be implemented to vibrate (or displace) based on different second driving signals, and thus, the vibration width and the displacement force transmitted to the passive vibration member 100 can be changed to achieve vocal cord sounds of various pitches.

[0081] According to embodiments of this disclosure, the second driving signal applied to each of the second-1 active vibration member 231 and the second-2 active vibration member 232 may be the same as or different from the first driving signal applied to the first active vibration member 211. As an embodiment of this disclosure, the first driving signal may have the same phase (or be in phase) as the second driving signal, or it may have an opposite phase (or be out of phase) relative to the phase of the second driving signal. As another embodiment of this disclosure, the first driving signal and the second driving signal may have the same period and may have the same amplitude or different amplitudes, but embodiments of this disclosure are not limited thereto.

[0082] Each of the first active vibration member 211, the second-1st active vibration member 231, and the second-2nd active vibration member 232 may include a vibration device.

[0083] The vibration device can vibrate (or displace or drive) based on a drive signal input to it. The vibration device can vibrate (or displace or drive) when it alternately and repeatedly contracts and expands based on the piezoelectric effect (or piezoelectric properties) according to a drive signal applied from the outside. The drive signal can be an alternating current (AC) signal, such as a sound signal, a vibration drive signal, or a voice signal. The vibration device of the first active vibration member 211 can vibrate (or displace or drive) based on a first drive signal input to it. The vibration devices of each of the second-first active vibration member 231 and the second-second active vibration member 232 can vibrate (or displace or drive) together based on a second drive signal input to them.

[0084] The vibration device according to embodiments of this disclosure can be a single-layer vibration device or a stacked vibration device, but embodiments of this disclosure are not limited thereto. The vibration device may include one or more piezoelectric devices having piezoelectric properties. A piezoelectric device may be a device that is shifted by the inverse piezoelectric effect when a drive signal (or voltage) based on an input sound signal is input to it. A piezoelectric device may be a device that is bent and shifted (or bent and vibrated or driven) based on a voltage such as that of a dual piezoelectric crystal or a single piezoelectric crystal.

[0085] The second vibrating portion 230 can be coupled to or attached to the periphery of the first vibrating portion 210 via the adhesive member 220. Each of the second-first active vibrating member 231 and the second-second active vibrating member 232 can be coupled to or attached to the periphery of the first active vibrating member 211 via the adhesive member 220. Therefore, each of the second-first active vibrating member 231 and the second-second active vibrating member 232 can be connected to the first active vibrating member 211 via the adhesive member 220, and thus can receive vibrations (or displacements) from the first active vibrating member 211 to vibrate (or displace).

[0086] The adhesive component 220 may be disposed or inserted between the first active vibrating component 211 and each of the second-first active vibrating component 231 and the second-second active vibrating component 232. The adhesive component 220 may be disposed or inserted between the front peripheral portion of the first active vibrating component 211 and the peripheral portion of each of the second-first active vibrating component 231 and the second-second active vibrating component 232. According to embodiments of this disclosure, the adhesive component 220 may include a first adhesive component 221 and a second adhesive component 222.

[0087] The first adhesive member 221 may be disposed or inserted between the second-first active vibrating member 231 and the first active vibrating member 211. For example, the first adhesive member 221 may be connected between the first connection region of the second-first active vibrating member 231 and the first peripheral portion of the first active vibrating member 211. For example, the first adhesive member 221 may be connected between the first front peripheral portion of the second-first active vibrating member 231 and the first rear peripheral portion of the first active vibrating member 211. Therefore, the first peripheral portion of the second-first active vibrating member 231 can be connected to the first peripheral portion of the first active vibrating member 211 through the first adhesive member 221, and thus can vibrate (or displace) based on the vibration (or displacement) of the first active vibrating member 211.

[0088] The second adhesive component 222 can be disposed or inserted between the second-second active vibrating component 232 and the first active vibrating component 211. For example, the second adhesive component 222 can be connected between the first connection region of the second-second active vibrating component 232 and the second peripheral portion of the first active vibrating component 211. For example, the second adhesive component 222 can be connected between the first front peripheral portion of the second-second active vibrating component 232 and the second rear peripheral portion of the first active vibrating component 211. Therefore, the first peripheral portion of the second-second active vibrating component 232 can be connected to the second peripheral portion of the first active vibrating component 211 through the second adhesive component 222, and thus can vibrate (or displace) based on the vibration (or displacement) of the first active vibrating component 211.

[0089] According to another embodiment of this disclosure, the adhesive member 220 may be disposed or inserted between the front peripheral portion of the first active vibrating member 211 and the rear peripheral portion of each of the second-first active vibrating member 231 and the second-second active vibrating member 232. For example, the first adhesive member 221 may be connected between the first rear peripheral portion of the second-first active vibrating member 231 and the first front peripheral portion of the first active vibrating member 211. For example, the second adhesive member 222 may be connected between the first rear peripheral portion of the second-second active vibrating member 232 and the second front peripheral portion of the first active vibrating member 211.

[0090] Each of the first adhesive component 221 and the second adhesive component 222 according to embodiments of the present disclosure may be configured as an adhesive material capable of compression and decompression. For example, each of the first adhesive component 221 and the second adhesive component 222 may be configured as an adhesive material with a low modulus of elasticity. Each of the first adhesive component 221 and the second adhesive component 222 may be configured as an adhesive resin material, an adhesive, or an adhesive tape, etc., but embodiments of the present disclosure are not limited thereto. The adhesive resin material may include one of epoxy resin materials, acrylic resin materials, and silicone resin materials, but embodiments of the present disclosure are not limited thereto. For example, each of the first adhesive component 221 and the second adhesive component 222 may include an acrylic adhesive material having relatively good adhesion and the high hardness of acrylic acid and urethane, such that the vibration of the first active vibration component 211 is well transmitted to the first peripheral portion of each of the second-1 active vibration component 231 and the second-2 active vibration component 232, but embodiments of the present disclosure are not limited thereto.

[0091] The adhesive resin, adhesive, or adhesive layer of the adhesive component 220 according to embodiments of this disclosure may include a light-curable adhesive material, but embodiments of this disclosure are not limited thereto. For example, the adhesive resin, adhesive, or adhesive layer of the adhesive component 220 may be an ultraviolet (UV) adhesive, but embodiments of this disclosure are not limited thereto.

[0092] The connecting portion 250 may be connected to or coupled to the periphery of the second vibrating portion 230 and the rear surface 100a of the passive vibrating member 100. For example, the connecting portion 250 may include 2N (where N is a natural number) connecting members 251 and 252 connected to each of the passive vibrating member 100 and each of the 2N second active vibrating members 231 and 232. The connecting portion 250 may include a first connecting member 251 and a second connecting member 252 connected to each of the passive vibrating member 100 and each of the second-first active vibrating member 231 and the second-second active vibrating member 232. For example, the 2N connecting members 251 and 252 may include a first connecting member 251 and a second connecting member 252.

[0093] Each of the first connecting member 251 and the second connecting member 252 may be polygonal or circular, but embodiments of this disclosure are not limited thereto. According to embodiments of this disclosure, each of the first connecting member 251 and the second connecting member 252 may include an elastic material that is elastic or flexible. For example, each of the first connecting member 251 and the second connecting member 252 may be configured as an elastomer having an elastic modulus (or Young's modulus) lower than that of each of the second-1 active vibrating member 231 and the second-2 active vibrating member 232. For example, each of the first connecting member 251 and the second connecting member 252 may include double-sided tape, single-sided tape, or double-sided adhesive foam pads, but embodiments of this disclosure are not limited thereto, and may include elastic pads such as rubber pads or silicone pads, which have adhesive properties and are compressible and decompressible. For example, the adhesive layer of each of the first connecting member 251 and the second connecting member 252 may include an acrylic-based adhesive material with relatively good adhesion and high hardness, but embodiments of this disclosure are not limited thereto. For example, each of the first connecting member 251 and the second connecting member 252 may be formed of an elastomer.

[0094] A first connecting member (or a first elastic member) 251 may be disposed or connected between the second-first active vibration member 231 and the passive vibration member 100. For example, the first connecting member 251 may be connected between the second connecting region of the second-first active vibration member 231 and the rear surface 100a of the passive vibration member 100. For example, the first connecting member 251 may be connected between the second front peripheral portion of the second-first active vibration member 231 and the rear surface 100a of the passive vibration member 100. Therefore, the second peripheral portion of the second-first active vibration member 231 can be connected to the passive vibration member 100 through the first connecting member 251, and thus, the passive vibration member 100 can be vibrated (or displaced or driven) based on the vibration of the first active vibration member 211 and the second-first active vibration member 231. Furthermore, the mass at both ends of the second-1 active vibration member 231 can be increased due to the first connecting member 251 and the first active vibration member 211, and the elasticity can be increased based on the combined effect of the modulus of the first connecting member 251 and the self-modulus of the first active vibration member 211, and therefore, the vibration width (or displacement width) can be increased.

[0095] The second connecting member (or the second elastic member) 252 may be disposed or connected between the second-second active vibration member 232 and the passive vibration member 100. For example, the second connecting member 252 may be connected between the second connecting region of the second-second active vibration member 232 and the rear surface 100a of the passive vibration member 100. For example, the second connecting member 252 may be connected between the second front peripheral portion of the second-second active vibration member 232 and the rear surface 100a of the passive vibration member 100. Therefore, the second peripheral portion of the second-second active vibration member 232 can be connected to the passive vibration member 100 through the second connecting member 252, and thus, the passive vibration member 100 can be vibrated (or displaced or driven) based on the vibration of the first active vibration member 211 and the second-second active vibration member 232. Furthermore, the mass at both ends of the second-2 active vibration member 232 can be increased due to the second connecting member 252 and the first active vibration member 211, and the elasticity can be increased based on the combined effect of the modulus of the second connecting member 252 and the self-modulus of the first active vibration member 211, and therefore, the vibration width (or displacement width) can be increased.

[0096] As described above, the vibration device 200 according to the first embodiment of this disclosure can have a large vibration width (or a large displacement width) based on the combined vibration (or composite vibration) of the second-1 active vibration member 231 and the second-2 active vibration member 232 in the drive (or vibration or displacement), and therefore, the vibration width (or displacement width) of the passive vibration member 100 can be increased, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated based on the vibration of the passive vibration member 100.

[0097] Figure 4 A vibration device according to an embodiment of the present disclosure is shown. Figure 4 It shows Figure 2 and Figure 3 The vibration device of the active vibration component is shown.

[0098] Reference Figures 2 to 4 Each of the first active vibration member 211, the second-1st active vibration member 231, and the second-2nd active vibration member 232 may include a vibration device 201.

[0099] The vibration device 201 can be a single-layer vibration device. A single-layer vibration device may include a piezoelectric layer 201a, one or more first electrodes (or first electrode layers) 201b disposed on a first surface of the piezoelectric layer 201a, and one or more second electrodes (or second electrode layers) 201c disposed on a second surface different from the first surface of the piezoelectric layer 201a. For example, the piezoelectric layer 201a may include a front surface and a rear surface. For example, the first surface of the piezoelectric layer 201a may be a first region of the front surface (or rear surface) of the piezoelectric layer 201a, and the second surface of the piezoelectric layer 201a may be a second region in the front surface (or rear surface) of the piezoelectric layer 201a that is spaced apart from the first region. For example, the first surface of the piezoelectric layer 201a may be the front surface of the piezoelectric layer 201a, and the second surface of the piezoelectric layer 201a may be the rear surface of the piezoelectric layer 201a.

[0100] The single-layer vibration device 201 may further include a first protective member 201d covering the first electrode 201b and a second protective member 201e covering the second electrode 201c. The first protective member 201d may be attached to the first electrode 201b via an adhesive layer. Alternatively, the first electrode 201b may be implemented at the first protective member 201d and electrically connected to the first surface of the piezoelectric layer 201a via a conductive adhesive member. The second protective member 201e may be attached to the second electrode 201c via an adhesive layer. Alternatively, the second electrode 201c may be implemented at the second protective member 201e and electrically connected to the second surface of the piezoelectric layer 201a via a conductive adhesive member.

[0101] In the vibration device 201 of the first active vibration member 211, either the first protective member 201d or the second protective member 201e can be connected to or attached to either the first protective member 201d or the second protective member 201e, and disposed at the vibration device 201 of each of the second-1 active vibration members 231 and the second-2 active vibration members 232 via the adhesive member 220. In each of the second-1 active vibration members 231 and the second-2 active vibration members 232, either the first protective member 201d or the second protective member 201e of the vibration device 201 can be connected to or coupled to the passive vibration member 100 via the connecting portion 250.

[0102] Alternatively, the vibration device 201 according to another embodiment of this disclosure may be a stacked vibration device. The stacked vibration device 201 may include multiple piezoelectric devices. For example, an electrode inserted (or disposed) between two piezoelectric devices that are perpendicularly adjacent to each other can serve as a common electrode for applying the same drive signal to each of the two perpendicularly adjacent piezoelectric devices, but embodiments of this disclosure are not limited thereto. For example, an elastic insulating layer may be inserted (or disposed) between two perpendicularly adjacent piezoelectric devices. For example, an elastic insulating layer may increase the mass of the piezoelectric device or vibration device 201, and thus may be used to reduce the mass of the resonant frequency (or natural frequency) of the piezoelectric device or vibration device 201. In another embodiment of the vibration device 201 according to this disclosure, the uppermost piezoelectric device among the multiple piezoelectric devices may be covered by a first protective member 201d, and the lowermost piezoelectric device among the multiple piezoelectric devices may be covered by a second protective member 201e.

[0103] According to the embodiments of this disclosure, the piezoelectric layer 201a may be a piezoelectric part, a piezoelectric structure, a piezoelectric sheet, a piezoelectric ceramic sheet, a piezoelectric plate, a piezoelectric ceramic plate, a vibration generating part, a displacement part, a displacement layer, a piezoelectric vibration structure, or a vibration structure, but the embodiments of this disclosure are not limited thereto.

[0104] The material of the piezoelectric layer 201a according to embodiments of this disclosure is not limited thereto, but may include a ceramic-based piezoelectric material capable of achieving relatively high vibrations, or may include a piezoelectric ceramic material having a perovskite-based crystal structure. For example, the piezoelectric layer 201a may be configured as a piezoelectric material including lead (Pb) or not including lead (Pb). For example, piezoelectric materials including lead (Pb) may include one or more of lead zirconate titanate (PZT)-based materials, lead nickel niobate (PZNN)-based materials, magnesium lead niobate (PMN)-based materials, nickel lead niobate (PNN)-based materials, lead zirconate niobate (PZN)-based materials, or indium lead niobate (PIN)-based materials, but embodiments of this disclosure are not limited thereto. For example, piezoelectric materials not including lead (Pb) may include one or more of barium titanate (BaTiO3), calcium titanate (CaTiO3), and strontium titanate (SrTiO3), but embodiments of this disclosure are not limited thereto.

[0105] Figure 5A and Figure 5B It shows Figure 4 The first and second modified embodiments of the piezoelectric layer are shown.

[0106] Reference Figure 4 and Figure 5AAccording to the first modified embodiment of this disclosure, the piezoelectric layer 201a may include a plurality of first portions 201a1 and a plurality of second portions 201a2. For example, the plurality of first portions 201a1 and the plurality of second portions 201a2 may be arranged alternately and repeatedly along a first direction X (or a second direction Y). For example, the first direction X may be the width direction of the vibrating device 201, and the second direction Y may be the length direction of the vibrating device 201, but the embodiments of this disclosure are not limited thereto. For example, the first direction X may be the length direction of the vibrating device 201, and the second direction Y may be the width direction of the vibrating device 201.

[0107] Each of the plurality of first portions 201a1 may include an inorganic material having a piezoelectric effect (or piezoelectric properties). For example, each of the plurality of first portions 201a1 may include a piezoelectric material, a composite piezoelectric material, or an electroactive material. For example, each of the plurality of first portions 201a1 may be an inorganic portion, an inorganic material portion, a piezoelectric portion, a piezoelectric material portion, or an electroactive portion.

[0108] According to embodiments of this disclosure, each of the plurality of first portions 201a1 may have a first width W1 parallel to a first direction X, and may extend along a second direction Y intersecting the first direction X. Each of the plurality of first portions 201a1 may include, as referenced above... Figure 4 The piezoelectric layer 201a described is essentially the same piezoelectric material, and therefore, repeated descriptions of it can be omitted.

[0109] Each of the plurality of second portions 201a2 may be disposed between the plurality of first portions 201a1. For example, each of the plurality of first portions 201a1 may be disposed between two adjacent second portions 201a2. Each of the plurality of second portions 201a2 may have a second width W2 parallel to a first direction X (or a second direction Y) and may extend along the second direction Y (or the first direction X). The first width W1 may be the same as or different from the second width W2. For example, the first width W1 may be greater than the second width W2. For example, the first portions 201a1 and the second portions 201a2 may include linear or strip shapes having the same or different dimensions.

[0110] Each of the plurality of second portions 201a2 can be configured to fill the gap between two adjacent first portions of the plurality of first portions 201a1. Each of the plurality of second portions 201a2 can be configured to fill the gap between two adjacent first portions of the plurality of first portions 201a1, and can be connected to or attached to an adjacent first portion 201a1. According to embodiments of the present disclosure, each of the plurality of first portions 201a1 and the plurality of second portions 201a2 can be arranged (or arranged) parallel to each other on the same plane (or the same layer).

[0111] According to embodiments of this disclosure, each of the plurality of second portions 201a2 can absorb impacts applied to the first portion 201a1, and thus can enhance the overall durability of the first portion 201a1 and provide flexibility to the vibration device 201. Each of the plurality of second portions 201a2 may include an organic material having flexible properties. For example, each of the plurality of second portions 201a2 may include one or more of epoxy polymers, acrylic polymers, and silicone polymers, but embodiments of this disclosure are not limited thereto. For example, each of the plurality of second portions 201a2 may be an organic portion, an organic material portion, an adhesive portion, an elastic portion, a bending portion, a damping portion, or a flexible portion, but embodiments of this disclosure are not limited thereto.

[0112] The first surface of each of the plurality of first portions 201a1 and the plurality of second portions 201a2 can be commonly connected to the first electrode 201b. The second surface of each of the plurality of first portions 201a1 and the plurality of second portions 201a2 can be commonly connected to the second electrode 201c.

[0113] Multiple first portions 201a1 and multiple second portions 201a2 can be disposed on the same plane (or connected to) the same plane, and therefore, the piezoelectric layer 201a according to the first modified embodiment of the present disclosure can have a single thin film type. Therefore, the vibration device 201 including the piezoelectric layer 201a according to the first modified embodiment of the present disclosure can vibrate vertically through the first portion 201a1 having vibration characteristics, and can be bent into a curved shape through the flexible second portion 201a2. For example, the vibration device 201 including the piezoelectric layer 201a according to the first modified embodiment of the present disclosure can have a 2-2 composite structure, and therefore can have a resonant frequency of 20 kHz or less, but the embodiments of the present disclosure are not limited thereto.

[0114] Reference Figures 2 to 4 and Figure 5AWhen each of the vibration devices 201 of the first active vibration member 211, the second-1st active vibration member 231, and the second-2nd active vibration member 232 includes a piezoelectric layer 201a according to the first modified embodiment of this disclosure, at least one or more first portions 201a1 disposed at the first and second peripheral portions of the vibration device 201 of the first active vibration member 211 can overlap with at least a portion of at least one or more first portions 201a1 disposed at each of the vibration devices 201 of the second-1st active vibration member 231 and the second-2nd active vibration member 232. Therefore, the vibration of the first active vibration member 211 can be effectively transmitted to each of the second-1st active vibration member 231 and the second-2nd active vibration member 232.

[0115] Reference Figure 4 and Figure 5B According to the second modified embodiment of the present disclosure, the piezoelectric layer 201a may include a plurality of first portions 201a3 and a second portion 201a4 disposed between the plurality of first portions 201a3.

[0116] Each of the plurality of first portions 201a3 can be configured to be spaced apart from each other along the first direction X and the second direction Y. For example, each of the plurality of first portions 201a3 can have a hexahedral shape (or a hexahedral object shape) of the same size and can be arranged in a grid pattern. Each of the plurality of first portions 201a3 can include the same as described above. Figure 5A The first part of the description 201a1 is essentially the same piezoelectric material, and therefore, repeated descriptions of it can be omitted.

[0117] The second portion 201a4 may be disposed between the plurality of first portions 201a3 along each of the first direction X and the second direction Y. The second portion 201a4 may be configured to fill the gap or space between two adjacent first portions 201a3, or may be configured to surround each of the plurality of first portions 201a3, and therefore, the second portion 201a4 may be connected to or attached to adjacent first portions 201a3. The second portion 201a4 may include, as referenced above... Figure 5A The second part 201a2 describes essentially the same organic material, and therefore, a repeated description of it can be omitted.

[0118] The first surface of each of the plurality of first portions 201a3 and second portions 201a4 can be commonly connected to the first electrode 201b. The second surface of each of the plurality of first portions 201a3 and second portions 201a4 can be commonly connected to the second electrode 201c.

[0119] Multiple first portions 201a3 and second portions 201a4 can be disposed on the same plane (or connected to the same plane), and therefore, the piezoelectric layer 201a according to the second modified embodiment of the present disclosure can have a single thin film type. Therefore, the vibration device 201 including the piezoelectric layer 201a according to the second modified embodiment of the present disclosure can vibrate vertically through the first portion 201a1 having vibration characteristics, and can be bent into a curved shape through the flexible second portion 201a4. For example, the vibration device 201 including the piezoelectric layer 201a according to the second modified embodiment of the present disclosure can have a 1-3 composite structure, and therefore can have a resonant frequency of 20 kHz or less, but the embodiments of the present disclosure are not limited thereto.

[0120] Reference Figures 2 to 4 and Figure 5B When each of the vibration devices 201 of the first active vibration member 211, the second-1st active vibration member 231, and the second-2nd active vibration member 232 includes a piezoelectric layer 201a according to the second modified embodiment of this disclosure, at least one or more first portions 201a3 disposed at the first and second peripheral portions of the vibration device 201 of the first active vibration member 211 can overlap with at least a portion of at least one or more first portions 201a3 disposed at each of the vibration devices 201 of the second-1st active vibration member 231 and the second-2nd active vibration member 232. Therefore, the vibration of the first active vibration member 211 can be effectively transmitted to each of the second-1st active vibration member 231 and the second-2nd active vibration member 232.

[0121] Figure 6A and Figure 6B It shows that it is based on the application to Figure 2 and Figure 3 The diagram shows the displacement point and vibration width (or displacement width) of the vibration device for each of the first and second vibration parts.

[0122] Reference Figure 2 and Figure 6A The first drive signal DS1 applied to the first vibration part 210 may have the same phase as the second drive signal DS2 applied to the second vibration part 230. Therefore, the first active vibration member 211 of the first vibration part 210 and the second-1 active vibration member 231 and the second-2 active vibration member 232 of the second vibration part 230 may each be displaced (or bent or vibrated) in the same shape as each other.

[0123] When the drive signals DS1 and DS2 applied to each of the first active vibration member 211, the second-first active vibration member 231, and the second-second active vibration member 232 have the same phase, the total vibration width (or displacement width) of the vibration device 200 can be added to the vibration width (or displacement width) of the first active vibration member 211 and the vibration width (or displacement width) of the second-first active vibration member 231 (or the second-second active vibration member 232), and thus can be increased. For example, the vibration of the first active vibration member 211 and the vibration of each of the second-first active vibration member 231 and the second-second active vibration member 232 can reinforce each other, and therefore, based on the vibration of the first vibration portion 210 and the second vibration portion 230, the vibration width (or displacement width) of the vibration device 200 can be increased.

[0124] According to an embodiment of this disclosure, when a positive first drive signal DS1 is applied to the first active vibration member 211, and simultaneously, a positive second drive signal DS2 having the same phase as the positive first drive signal DS1 is applied to each of the second-1 active vibration member 231 and the second-2 active vibration member 232, the first vibration portion 210 and the second vibration portion 230 may be displaced in a first shape (or convex shape) DSa, and the second peripheral portion of each of the second-1 active vibration member 231 and the second-2 active vibration member 232 may be displaced in a direction toward (or closer to) the support member 300. On the other hand, when a negative first drive signal DS1 is applied to the first active vibration member 211, and simultaneously, a negative second drive signal DS2 having the same phase as the negative first drive signal DS1 is applied to each of the second-1 active vibration member 231 and the second-2 active vibration member 232, the first vibration portion 210 and the second vibration portion 230 can be shifted in a second shape (or concave shape) DSb opposite to the first shape DSa, and the second peripheral portion of each of the second-1 active vibration member 231 and the second-2 active vibration member 232 can be shifted in a direction toward (or closer to) the passive vibration member 100.

[0125] Therefore, when drive signals with the same phase are applied to the first vibration portion 210 and the second vibration portion 230, the displacement point BP at the intersection of the first shape (or first vibration shape) DSa of each of the first vibration portion 210 and the second vibration portion 230 shifted by positive drive signals DS1 and DS2 and the second shape (or second vibration shape) DSb of each of the first vibration portion 210 and the second vibration portion 230 shifted by negative drive signals DS1 and DS2 can be set on (or located on) the outside (or outside) of the connecting members 251 and 252. Therefore, when drive signals with the same phase are applied to the first vibration portion 210 and the second vibration portion 230, the vibration width (or displacement) of the vibration device 200 can be increased, and thus the vibration width (or displacement) of the passive vibration member 100 can be increased, thereby enhancing the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords generated based on the vibration of the passive vibration member 100.

[0126] Reference Figure 2 and Figure 6B The first drive signal DS1 applied to the first vibration part 210 may have a phase opposite (or out of phase) to the second drive signal DS2 applied to the second vibration part 230. Therefore, the first active vibration member 211 of the first vibration part 210 and the second-1 active vibration member 231 and the second-2 active vibration member 232 of the second vibration part 230 may each be displaced (or bent or vibrated) in different shapes from each other.

[0127] When the second drive signal DS2 applied to each of the second-1 active vibration member 231 and the second-2 active vibration member 232 is the inverse of the first drive signal DS1 applied to the first active vibration member 211, the total vibration width (or displacement) of the vibration device 200 can be reduced because the vibration width (or displacement) of the second-1 active vibration member 231 (or the second-2 active vibration member 232) is limited by the vibration width (or displacement) of the first active vibration member 211. For example, the vibration of each of the second-1 active vibration member 231 and the second-2 active vibration member 232 can be disturbed by the vibration of the first active vibration member 211, and therefore, the vibration width of the vibration device 200 can be reduced based on the vibration of each of the first vibration portion 210 and the second vibration portion 230.

[0128] According to an embodiment of the present disclosure, when a positive first drive signal DS1 is applied to the first active vibration member 211, and simultaneously a negative second drive signal DS2 having the opposite phase (or out of phase) to the positive first drive signal DS1 is applied to each of the second-1 active vibration member 231 and the second-2 active vibration member 232, the first vibration portion 210 and the second vibration portion 230 can be displaced in a second shape DSb, and the second peripheral portion of each of the second-1 active vibration member 231 and the second-2 active vibration member 232 can be displaced in a direction toward (or closer to) the passive vibration member 100. On the other hand, when a negative first drive signal DS1 is applied to the first active vibration member 211, and a positive second drive signal DS2 with the opposite phase (or out of phase) to the negative first drive signal DS1 is applied to each of the second-1 active vibration member 231 and the second-2 active vibration member 232, the first vibration portion 210 and the second vibration portion 230 can be displaced in the first shape DSa, and the second peripheral portion of each of the second-1 active vibration member 231 and the second-2 active vibration member 232 can be displaced in the direction toward (or closer to) the support member 300.

[0129] Therefore, when a drive signal with opposite phase (or out of phase) is applied to the first vibration portion 210 and the second vibration portion 230, the displacement point BP where the first shape DSa and the second shape DSB of the first vibration portion 210 and the second vibration portion 230 intersect each other can be set (or positioned) within (or inside) the connecting members 251 and 252, or can be set (or positioned) in the region between the first vibration portion 210 and the connecting members 251 and 252. Therefore, when a drive signal with opposite phase (or out of phase) is applied to the first vibration portion 210 and the second vibration portion 230, the vibration width (or displacement) of the vibration device 200 may decrease, and therefore, the vibration width (or displacement) of the passive vibration member 100 may decrease, thereby enhancing the sound characteristics and sound pressure level characteristics of the low-pitched or high-pitched vocal cords generated by the vibration of the passive vibration member 100.

[0130] According to another embodiment of this disclosure, at least one or more of the phase and amplitude of the second driving signal applied to the second-1 active vibration member 231 may differ from at least one or more of the phase and amplitude of the second driving signal applied to the second-2 active vibration member 232. For example, the displacement point BP where the first shape DSa and the second shape DSb of the first vibration portion 210 and the second vibration portion 230 intersect each other may be changed, and therefore, the vibration width and displacement force of the vibration transmitted to the passive vibration member 100 may be changed, thereby achieving the sound of vocal cords in various tones. For example, when the position of the displacement point BP of the first vibration portion 210 and the second vibration portion 230 changes, the vibration width and displacement force of the vibration transmitted to the passive vibration member 100 may change, thereby achieving the sound of vocal cords in various tones.

[0131] As described above, the device according to the embodiments of the present disclosure can supply drive signals with the same phase to the first vibration portion 210 and the second vibration portion 230 of the vibration device 200, and thus can increase the vibration width (or displacement) of the passive vibration member 100, thereby enhancing the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the passive vibration member 100.

[0132] Furthermore, the device according to the embodiments of the present disclosure can supply drive signals with opposite phases (or out-of-phase) to the first vibration portion 210 and the second vibration portion 230 of the vibration device 200, and thus can reduce the vibration width (or displacement) of the passive vibration member 100, thereby enhancing the sound characteristics and sound pressure level characteristics of the low-pitched or high-pitched vocal cords generated by the vibration of the passive vibration member 100.

[0133] Furthermore, the device according to the embodiments of this disclosure can periodically or alternately supply drive signals DS1 and DS2 with the same phase and drive signals DS1 and DS2 with opposite phases (or out of phase) to the first vibration part 210 and the second vibration part 230 of the vibration device 200. Therefore, the vibration width (or displacement) of the first vibration part 210 and the second vibration part 230 can be adjusted (or changed) to adjust (or change) the vibration width (or displacement) of the passive vibration member 100, thereby generating (or outputting) sounds of various pitch vocal cords based on the vibration of the passive vibration member 100, and enhancing the sound characteristics and sound pressure level characteristics of various pitch vocal cords.

[0134] Figure 7 It is along Figure 1 Another cross-sectional view taken from line I-I'. Figure 7 The above reference is shown. Figures 1 to 6BThe embodiments of the present disclosure described herein include those in which a mass member is additionally provided in the device or vibration device. Therefore, in Figure 7 In the description, other elements besides mass components and related elements are referred to by the same reference numerals, and repeated descriptions of them may be omitted.

[0135] Reference Figure 7 According to another embodiment of the present disclosure, the device or vibration device 200 may also include a mass member 260.

[0136] The mass member 260 may be disposed or attached to the first vibrating portion 210. For example, the mass member 260 may be disposed at the first active vibrating member 211 between the second-1 active vibrating member 231 and the second-2 active vibrating member 232. For example, the mass member 260 may be disposed or attached to the rear center portion or the front center portion of the first active vibrating device 211. For example, the mass member 260 may have a polygonal column shape or a circular column shape.

[0137] The mass member 260 may include an elastic material capable of serving as a mass (or mass body) on the first active vibration member 211. For example, the mass member 260 may include an elastic material having a strength less than that of the active vibration member 211. For example, the mass member 260 may include the same elastic material as the connecting portion 250.

[0138] Mass member 260 can be used as a mass (or mass body) that increases the mass (or weight) of each of the active vibrating member 211, the second-first active vibrating member 231, and the second-second active vibrating member 232 to lower the lowest resonant frequency (or lowest natural frequency) of the active vibrating member 211. Therefore, each of the active vibrating member 211, the second-first active vibrating member 231, and the second-second active vibrating member 232 can further lower its lowest resonant frequency (or lowest natural frequency) and thus can vibrate at a relatively low frequency.

[0139] Alternatively, mass member 260 may be disposed between each of the second-first active vibrating member 231 and the second-second active vibrating member 232 and the first active vibrating member 211. For example, mass member 260 may be disposed between the first active vibrating member 211 and the adhesive member 220. For example, mass member 260 may be disposed between each of the second-first active vibrating member 231 and the second-second active vibrating member 232 and the adhesive member 220. Mass member 260 may be embedded in each of the first adhesive member 221 and the second adhesive member 222. The first adhesive member 221 and the second adhesive member 222 may be configured to completely surround mass member 260. Even in this case, mass member 260 may also serve as a mass (or mass body) that increases the mass (or weight) of each of the active vibrating member 211, the second-first active vibrating member 231, and the second-second active vibrating member 232 to lower the lowest resonant frequency (or lowest natural frequency) of the active vibrating member 211.

[0140] Alternatively, mass member 260 may be disposed on each of the second-first active vibrating member 231 and the second-second active vibrating member 232. For example, mass member 260 may be disposed on or attached to the rear center portion of each of the second-first active vibrating member 231 and the second-second active vibrating member 232 facing the support member 300. Even in this case, mass member 260 may also function as a mass (or mass body) that increases the mass (or weight) of each of the active vibrating member 211, the second-first active vibrating member 231, and the second-second active vibrating member 232 to lower the lowest resonant frequency (or lowest natural frequency) of the active vibrating member 211.

[0141] As described above, the device or vibration device 200 according to another embodiment of the present disclosure may further include a mass member 260, which is capable of reducing the lowest resonant frequency of each of the active vibration member 211, the second-1st active vibration member 231 and the second-2nd active vibration member 232, and thus can further enhance the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the passive vibration member 100.

[0142] Figure 8 A vibration device according to a second embodiment of the present disclosure is shown. Figure 8 This shows how to modify the above reference. Figure 2 and Figure 3 The implementation method is achieved through the second vibration component in the described device. Therefore, in Figure 8 In the description, other elements besides the second vibration part and related elements are referred to by the same reference numerals, and repeated descriptions of them may be omitted.

[0143] Reference Figure 2 and Figure 8 In the vibration device 200 according to the second embodiment of the present disclosure, each of the second-1st active vibration member 231 and the second-2nd active vibration member 232 of the second vibration portion 230 is inclined from the first active vibration member 211 of the first vibration portion 210. The second-1st active vibration member 231 and the second-2nd active vibration member 232 may be arranged to tilt or lean relative to the first and second outer peripheral portions of the first active vibration member 211, and may be arranged parallel to the central portion of the first active vibration member 211 therebetween.

[0144] Each of the second-first active vibration member 231 and the second-second active vibration member 232 can be configured to tilt or lean at an angle (θ) relative to the second direction Y. Each of the second-first active vibration member 231 and the second-second active vibration member 232 can be configured to tilt or lean at an angle (θ) relative to the first side and the second side of the first active vibration member 211 that are parallel to the second direction Y. For example, the first side of each of the second-first active vibration member 231 and the second-second active vibration member 232 corresponding to the first peripheral portion can tilt or lean at an angle (θ) relative to the first side and the second side of the first active vibration member 211.

[0145] According to embodiments of this disclosure, the angle (θ) between the first side of the first active vibration member 211 and the first side of the second-1 active vibration member 231 can be an acute angle. Additionally, the angle (θ) between the second side of the first active vibration member 211 and the first side of the second-2 active vibration member 232 can also be an acute angle. For example, each of the angle (θ) between the first side of the first active vibration member 211 and the first side of the second-1 active vibration member 231 and the first side of the second-2 active vibration member 232 can be 45 degrees or less, but embodiments of this disclosure are not limited thereto.

[0146] According to embodiments of this disclosure, at least one or more of the two corners of the first peripheral portion of the first active vibration member 211 may overlap or connect with the first peripheral portion of the second-first active vibration member 231. At least one or more of the two corners of the second peripheral portion of the first active vibration member 211 may overlap or connect with the first peripheral portion of the second-second active vibration member 232. Therefore, when the first active vibration member 211 vibrates, the occurrence of cracks or damage in the corners of the first active vibration member 211 can be prevented or minimized, and thus the reliability of the first active vibration member 211 or the vibration device 200 can be enhanced.

[0147] According to embodiments of this disclosure, each of the second-1 active vibration member 231 and the second-2 active vibration member 232 may include a first corner portion overlapping the first active vibration member 211 and a second corner portion opposite to the first corner portion. Therefore, with Figure 3 In comparison, the distance between the second corner of each of the second-1 active vibration member 231 and the center portion of the first active vibration member 211 can be increased, and therefore, the length of the vibration device 200 can be increased, thereby increasing the vibration width (or displacement width) of the vibration device 200.

[0148] In the vibration device 200 according to the second embodiment of this disclosure, the first connecting member 251 of the connecting portion 250 can be connected to or coupled to the region between the second corner of the second-first active vibration member 231 and the rear surface 100a of the passive vibration member 100. The second connecting member 252 of the connecting portion 250 can be connected to or coupled to the region between the second corner of the second-second active vibration member 232 and the rear surface 100a of the passive vibration member 100. Therefore, with... Figure 3 In contrast, the distance L between the first connecting member 251 and the second connecting member 252 can be increased, and therefore the length of the vibration device 200 can be increased, thereby increasing the vibration width (or displacement width) of the vibration device 200.

[0149] As described above, in the vibration device 200 according to the second embodiment of the present disclosure, each of the second-1 active vibration member 231 and the second-2 active vibration member 232 can be configured to tilt or lean from the first active vibration member 211, and thus the vibration width (or displacement width) of the vibration device 200 can be increased, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the passive vibration member 100.

[0150] Figure 9A vibration device according to a third embodiment of the present disclosure is shown. Figure 9 This shows how to modify the above reference. Figure 2 and 3 or Figure 7 The implementation method is achieved through the second vibration component in the described device. Therefore, in Figure 9 In the description, other elements besides the second vibration part and related elements are referred to by the same reference numerals, and repeated descriptions of them may be omitted.

[0151] Reference Figure 2 , Figure 7 and Figure 9 In the vibration device 200 according to the third embodiment of this disclosure, the second vibration portion 230 may include four active vibration members 231, 232, 233, and 234. For example, the second vibration portion 230 may include active vibration members 2-1 to 2-4, namely 231, 232, 233, and 234. For example, active vibration members 2-1 and 2-2 may be a pair of second active vibration members, and active vibration members 2-3 and 2-4 may be a pair of third active vibration members. In this disclosure, active vibration members 2-1 to 2-4 may be second to fifth active vibration members, but the embodiments of this disclosure are not limited to the numerals "2-1" to "2-4".

[0152] Each of the second-first to second-fourth active vibration members 231, 232, 233, and 234 may have a shape different from that of the first active vibration member 211. As an embodiment of this disclosure, each of the second-first to second-fourth active vibration members 231, 232, 233, and 234 may have a square shape with a smaller dimension than that of the first active vibration member 211. As another embodiment of this disclosure, each of the second-first to second-fourth active vibration members 231, 232, 233, and 234 may have a rectangular shape with a smaller width than that of the first active vibration member 211 and a dimension greater than or equal to that of the first active vibration member 211.

[0153] The second-1 active vibration member 231 can be connected to or coupled to the first peripheral portion of the first active vibration member 211. The second-1 active vibration member 231 can be related to the above-mentioned reference. Figure 2 and Figure 3 The description of the second-1 active vibration member 231 is substantially the same, and therefore repeated descriptions of it can be omitted.

[0154] The second-2 active vibration member 232 can be connected to or coupled to the second peripheral portion of the first active vibration member 211. The second-2 active vibration member 232 can be related to the above-mentioned... Figure 2 and Figure 3 The description of the second-2 active vibration member 232 is basically the same, and therefore repeated descriptions of it can be omitted.

[0155] The second-third active vibration member 233 can be connected or coupled to the third peripheral portion of the first active vibration member 211. For example, in the first active vibration member 211, the third peripheral portion can be disposed (or positioned) between the first peripheral portion and the second peripheral portion, or the third peripheral portion of the first active vibration member 211 can be disposed (or positioned) between the second-first active vibration member 231 and the second-second active vibration member 232. For example, the third peripheral portion of the first active vibration member 211 may include a side of the first active vibration member 211 parallel to the first direction X. For example, the first peripheral portion of the second-third active vibration member 233 can be connected or coupled to the third peripheral portion of the first active vibration member 211 via the third adhesive member 223 of the adhesive member 220. In addition to the second-third active vibration member 233 being connected to the third peripheral portion of the first active vibration member 211 via the third adhesive member 223, the second-third active vibration member 233 can also be connected to the third peripheral portion of the first active vibration member 211 as described above. Figure 2 and Figure 3 The description of the second-1 active vibration member 231 is substantially the same, and therefore repeated descriptions of it can be omitted.

[0156] The second-fourth active vibration member 234 can be connected or coupled to the fourth peripheral portion of the first active vibration member 211. For example, in the first active vibration member 211, the fourth peripheral portion can be parallel to the third peripheral portion. For example, the first peripheral portion of the second-fourth active vibration member 234 can be connected or coupled to the fourth peripheral portion of the first active vibration member 211 via the fourth adhesive member 224 of the adhesive member 220. Besides the second-fourth active vibration member 234 being connected to the fourth peripheral portion of the first active vibration member 211 via the fourth adhesive member 224, the second-fourth active vibration member 234 can also be connected to the fourth peripheral portion of the first active vibration member 211 as described above. Figure 2 and Figure 3 The description of the second-1 active vibration member 231 is substantially the same, and therefore repeated descriptions of it can be omitted.

[0157] The second-third active vibrating member 233 and the second-fourth active vibrating member 234 may be arranged parallel to the central portion of the first active vibrating member 211. Each of the second-third active vibrating member 233 and the second-fourth active vibrating member 234 may include a vibration device. The vibration device of each of the second-third active vibrating member 233 and the second-fourth active vibrating member 234 may be related to the above-mentioned... Figures 2 to 5B The vibration devices of the second-1 active vibration member 231 described are substantially the same, and therefore repeated descriptions of them can be omitted.

[0158] According to embodiments of this disclosure, each of the second-1st to second-4th active vibration members 231, 232, 233 and 234 may vibrate (or shift) based on a second drive signal having a phase that is the same as or opposite to the phase of the first drive signal applied to the first active vibration member 211.

[0159] According to another embodiment of this disclosure, the second-1 driving signals to the second-4 driving signals applied to the second-1 to second-4 active vibrating members 231, 232, 233 and 234 may be the same or different. For example, at least one or more of the second-1 to second-4 driving signals may be different. For example, at least one or more of the second-1 to second-4 driving signals may include different phases. For example, at least one or more of the second-1 to second-4 driving signals may include different amplitudes. For example, at least one or more of the second-1 to second-4 driving signals may include different phases and different amplitudes. Therefore, one or more of the second-1 to second-4 active vibrating members 231, 232, 233 and 234 may vibrate based on different vibration widths (or displacements), and therefore, the vibration width and displacement force of the vibration transmitted to the passive vibrating member 100 can be changed based on the vibration of the vibrating device 200, thereby realizing the sound of various tones of the vocal cords.

[0160] Each of the third adhesive component 223 and the fourth adhesive component 224 may be referenced above. Figure 2 and Figure 3 The first adhesive component 221 described is substantially the same, and therefore repeated descriptions of it can be omitted.

[0161] In the vibration device 200 according to the third embodiment of the present disclosure, the connection portion 250 may include a first connecting member to a fourth connecting member 251, 252, 253 and 254.

[0162] The first connecting member 251 can be connected or coupled between the second peripheral portion of the active vibration member 231 and the rear surface 100a of the passive vibration member 100. The first connecting member 251 can be referenced above... Figure 2 and Figure 3 The first connecting member 251 described is substantially the same, and therefore repeated descriptions of it can be omitted.

[0163] The second connecting member 252 can be connected or coupled between the second peripheral portion of the active vibration member 232 and the rear surface 100a of the passive vibration member 100. The second connecting member 252 can be connected to or coupled between the second peripheral portion of the active vibration member 232 and the rear surface 100a of the passive vibration member 100. Figure 2 and Figure 3 The second connecting member 252 described is substantially the same, and therefore repeated descriptions of it can be omitted.

[0164] The third connecting member 253 can be connected or coupled between the third peripheral portion of the second-third active vibration member 233 and the rear surface 100a of the passive vibration member 100. The third connecting member 253 can be connected to or coupled between the third peripheral portion of the second-third active vibration member 233 and the rear surface 100a of the passive vibration member 100. Figure 2 and Figure 3 The first connecting member 251 described is substantially the same, and therefore repeated descriptions of it can be omitted.

[0165] The fourth connecting member 254 can be connected or coupled between the fourth peripheral portion of the second-fourth active vibration member 234 and the rear surface 100a of the passive vibration member 100. The fourth connecting member 254 can be referenced above. Figure 2 and Figure 3 The first connecting member 251 described is substantially the same, and therefore repeated descriptions of it can be omitted.

[0166] As described above, since the vibration device 200 according to the third embodiment of this disclosure includes a second-1st active vibration member to a second-4th active vibration member 231, 232, 233 and 234 connected between the first active vibration member 211 and the passive vibration member 100, the vibration device 200 can further increase the vibration width (or displacement width) of the passive vibration member 100 to further enhance the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords, and can change the vibration width and displacement force of the vibration transmitted to the passive vibration member 100 to achieve the sound of various pitch vocal cords, thereby achieving the sound characteristics and sound pressure level characteristics of various pitch vocal cords.

[0167] Figure 10 A vibration device according to a fourth embodiment of the present disclosure is shown. Figure 10 It shows how to modify Figure 9This embodiment is achieved through the arrangement of the 2-1 to 2-4 active vibrating members in the vibration device shown. Therefore, in Figure 10 In the description, all other elements except for the 2-1 active vibration members to the 2-4 active vibration members and related elements are referred to by the same reference numerals, and repeated descriptions of them may be omitted.

[0168] Reference Figure 2 , Figure 7 and Figure 10 In the vibration device 200 according to the fourth embodiment of the present disclosure, each of the second-1st active vibration member to the second-4th active vibration members 231, 232, 233 and 234 may be provided at the corner of the peripheral portion of the first active vibration member 211.

[0169] Each of the 2-1 to 2-4 active vibration members 231, 232, 233 and 234 can be configured to be close to the corner of the first active vibration member 211 relative to the peripheral portion of the first active vibration member 211.

[0170] The second-1 active vibration member 231 can be connected or coupled to the first peripheral portion of the first active vibration member 211 to overlap with the first corner of the first active vibration member 211. The second-2 active vibration member 232 can be connected or coupled to the second peripheral portion of the first active vibration member 211 to overlap with the second corner of the first active vibration member 211, which is diagonally positioned relative to the first corner. The second-3 active vibration member 233 can be connected or coupled to the third peripheral portion of the first active vibration member 211 to overlap with the third corner of the first active vibration member 211. The second-4 active vibration member 234 can be connected or coupled to the fourth peripheral portion of the first active vibration member 211 to overlap with the fourth corner of the first active vibration member 211, which is diagonally positioned relative to the third corner.

[0171] According to embodiments of this disclosure, the second-1st to the second-4th active vibration members 231 to 234 can overlap with the first to fourth corners of the first active vibration member 211, respectively. Therefore, when the first active vibration member 211 vibrates, the occurrence of cracks or damage in the corners of the first active vibration member 211 can be prevented or minimized, thereby enhancing the reliability of the first active vibration member 211 or the vibration device 200.

[0172] As described above, the vibration device 200 according to the fourth embodiment of the present disclosure can have the same effect as the vibration device 200 according to the third embodiment of the present disclosure, and each of the second-1st to second-4th active vibration members 231 to 234 can overlap with the corner of the first active vibration member 211, and therefore, the occurrence of cracks or damage in the corner of the first active vibration member 211 can be prevented or minimized, thereby enhancing reliability.

[0173] Figure 11 A vibration device according to a fifth embodiment of the present disclosure is shown. Figure 11 The above references are shown Figure 8 The described embodiment of the vibration device includes a second active vibration member 3 and a second-fourth active vibration member additionally provided in the second vibration part of the device. Therefore, in... Figure 11 In the description, all other elements except for the 2nd-3rd and 2nd-4th active vibration components and related elements are referred to by the same reference numerals, and repeated descriptions of them may be omitted.

[0174] Reference Figure 2 , Figure 7 and Figure 11 In the vibration device 200 according to the fifth embodiment of the present disclosure, the second vibration part 230 may further include a second-third active vibration member 233 and a second-fourth active vibration member 234.

[0175] Each of the second-third active vibration member 233 and the second-fourth active vibration member 234 can be configured to tilt or lean relative to the third and fourth peripheral portions of the first active vibration member 211, and can be arranged parallel to the central portion of the first active vibration member 211 therebetween. Each of the second-third active vibration member 233 and the second-fourth active vibration member 234 can be configured to have the same shape and the same dimensions as each of the second-first active vibration member 231 and the second-second active vibration member 232.

[0176] Each of the second-third and second-fourth active vibration members 233 and 234 can be configured to tilt or lean at an angle (θ) relative to the first direction X. For example, each of the second-third and second-fourth active vibration members 233 and 234 can be configured to tilt or lean at an angle (θ) relative to the third and fourth sides of the first active vibration member 211 that are parallel to the first direction X. For example, the first side of each of the second-third and second-fourth active vibration members 233 and 234 corresponding to the first peripheral portion can be tilted or obliquely intersected by an angle (θ) relative to the third and fourth sides of the first active vibration member 211.

[0177] According to embodiments of this disclosure, the angle (θ) between each side of the first active vibration member 211 and the first side of the second-1 to second-4 active vibration members 231, 232, 233 and 234 can be an acute angle. For example, the angle (θ) between each side of the first active vibration member 211 and the first side of the second-1 to second-4 active vibration members 231, 232, 233 and 234 can be 45 degrees or less.

[0178] According to embodiments of this disclosure, each of the second-1 to second-4 active vibration members 231, 232, 233, and 234 may include a first corner portion overlapping the first active vibration member 211 and a second corner portion opposite the first corner portion. Therefore, with Figure 3 In comparison, the distance between the second corner of each of the second-1st to second-4th active vibration members 231, 232, 233 and 234 and the center portion of the first active vibration member 211 can be increased, and therefore the length of the vibration device 200 can be increased, thereby increasing the vibration width (or displacement width) of the vibration device 200.

[0179] According to embodiments of this disclosure, the second-third active vibration member 233 can be connected or coupled to the third peripheral portion of the first active vibration member 211 via the third adhesive member 223 of the adhesive member 220. For example, the first peripheral portion of the second-third active vibration member 233, including the first corner portion, can be connected or coupled to the third peripheral portion of the first active vibration member 211 via the third adhesive member 223. Besides the second-third active vibration member 233 being connected to the third peripheral portion of the first active vibration member 211 via the third adhesive member 233, the second-third active vibration member 233 can also be connected to the third peripheral portion of the first active vibration member 211 as described above. Figure 8 The description of the second-1 active vibration member 231 is substantially the same, and therefore repeated descriptions of it can be omitted.

[0180] The second-fourth active vibration member 234 can be connected or coupled to the fourth peripheral portion of the first active vibration member 211 via the fourth adhesive member 224 of the adhesive member 220. For example, the first peripheral portion of the second-fourth active vibration member 234, including the first corner portion, can be connected or coupled to the fourth peripheral portion of the first active vibration member 211 via the fourth adhesive member 224. Besides the second-fourth active vibration member 234 being connected to the fourth peripheral portion of the first active vibration member 211 via the fourth adhesive member 234, the second-fourth active vibration member 234 can also be connected to the fourth peripheral portion of the first active vibration member 211 as described above. Figure 8 The description of the second-1 active vibration member 231 is substantially the same, and therefore repeated descriptions of it can be omitted.

[0181] According to embodiments of this disclosure, at least one or more of the two corners of the third peripheral portion of the first active vibration member 211 may overlap or connect with the first peripheral portion of the second-third active vibration member 233. At least one or more of the two corners of the fourth peripheral portion of the first active vibration member 211 may overlap or connect with the first peripheral portion of the second-fourth active vibration member 234. Therefore, each corner of the first active vibration member 211 may overlap or connect with each of the second-first to second-fourth active vibration members 231, 232, 233 and 234. Therefore, when the first active vibration member 211 vibrates, the occurrence of cracks or breakage in the corners of the first active vibration member 211 can be prevented or minimized, and thus the reliability of the first active vibration member 211 or the vibration device 200 can be enhanced.

[0182] Each of the second-third active vibration member 233 and the second-fourth active vibration member 234 may include a vibration device. The vibration device of each of the second-third active vibration member 233 and the second-fourth active vibration member 234 may be related to the above-mentioned... Figures 2 to 5B The vibration devices of the second-1 active vibration member 231 described are substantially the same, and therefore repeated descriptions of them can be omitted.

[0183] According to embodiments of this disclosure, each of the second-1st to second-4th active vibration members 231, 232, 233 and 234 may vibrate (or shift) based on a second drive signal having a phase that is the same as or opposite to the phase of the first drive signal applied to the first active vibration member 211.

[0184] According to another embodiment of this disclosure, as referred to above... Figure 9The driving signals applied to the active vibration components 231, 232, 233 and 234 respectively can be the same or different.

[0185] In the vibration device 200 according to the fifth embodiment of this disclosure, the first connecting member 251 of the connecting portion 250 can be connected or coupled between the second corner of the 2-1 active vibration member 231 and the rear surface 100a of the passive vibration member 100. The second connecting member 252 of the connecting portion 250 can be connected or coupled between the second corner of the 2-2 active vibration member 232 and the rear surface 100a of the passive vibration member 100. Therefore, with... Figure 3 In contrast, the distance between the first connecting member 251 and the second connecting member 252 can be increased, and therefore the length of the vibrating device 200 can be increased, thereby increasing the vibration width (or displacement width) of the vibrating device 200.

[0186] In the vibration device 200 according to the fifth embodiment of the present disclosure, the connecting portion 250 may further include a third connecting member 253 and a fourth connecting member 254.

[0187] The third connecting member 253 can be connected or coupled between the second corner of the second-third active vibrating member 233 and the rear surface 100a of the passive vibrating member 100. The fourth connecting member 253 can be connected or coupled between the second corner of the second-fourth active vibrating member 234 and the rear surface 100a of the passive vibrating member 100. Therefore, with... Figure 3 In contrast, the distance between the third connecting member 253 and the fourth connecting member 254 can be increased, and therefore the length of the vibrating device 200 can be increased, thereby increasing the vibration width (or displacement width) of the vibrating device 200.

[0188] As described above, the vibration device 200 according to the fifth embodiment of this disclosure may further include the second-1st to the second-4th active vibration members 231, 232, 233 and 234, and therefore may have the same effect as the vibration device 200 according to the fourth embodiment of this disclosure. Furthermore, in the vibration device 200 according to the fifth embodiment of this disclosure, each of the second-1st to the second-4th active vibration members 231, 232, 233 and 234 may be configured to tilt or lean from the first active vibration member 211, and therefore the vibration width (or displacement width) of the vibration device 200 may be increased, thereby enhancing the sound characteristics and / or sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the passive vibration member 100.

[0189] Figure 12This is a block diagram of a vibration drive circuit according to a first embodiment of the present disclosure.

[0190] Reference Figure 2 and Figure 12 According to the first embodiment of the present disclosure, the vibration drive circuit 400 can generate a first drive signal DS1 and a plurality of second drive signals DS2-1 to DS2-4 for vibrating (or shifting) each of the first vibration portion 210 and the second vibration portion 230 based on a sound source signal SS input from the host device (or host drive circuit), and can supply the generated drive signals DS1 and DS2-1 to DS2-4 to the corresponding vibration portions 210 and 230.

[0191] The vibration drive circuit 400 according to the first embodiment of this disclosure may include an amplifier circuit component 410.

[0192] Amplification circuit component 410 can be configured to amplify one of the input sound source signals SS and supply the amplified sound source signal SS to each of the first active vibration member 211 and the plurality of active vibration members 231, 232, 233, and 234. Amplification circuit component 410 may include a plurality of amplification circuits 411 and 421 to 424 corresponding to the first active vibration member 211 and the plurality of active vibration members 231, 232, 233, and 234, respectively. For example, amplification circuit component 410 may include a first amplification circuit 411 and a plurality of second amplification circuits 421 to 424. For example, driving... Figure 3 and Figure 7 The vibration drive circuit 400 of the embodiment of this disclosure shown may include a first amplifier circuit 411, a second-first amplifier circuit 421, and a second-second amplifier circuit 422. For example, driving... Figures 9 to 11 The vibration drive circuit 400 of the embodiment of the present disclosure shown may include a first amplifier circuit 411 and second-1 to second-4 amplifier circuits 421, 422, 423 and 424.

[0193] Each of the first amplifier circuit 411 and the plurality of second amplifier circuits 421 to 424 can simultaneously receive the same sound source signal and can amplify the sound source signal based on a predetermined gain value to generate a first drive signal DS1 and a plurality of second drive signals DS2-1 to DS2-4.

[0194] The first amplifier circuit 411 can amplify the sound source signal into a first drive signal DS1 with positive or negative values ​​based on a predetermined gain value, thereby generating the first drive signal DS1, and can supply the generated first drive signal DS1 to the first active vibration member 211. For example, the positive first drive signal DS1 and the negative first drive signal DS1 can have the same period and first amplitude. The first amplitude of each of the positive and negative first drive signals DS1 can be increased or decreased based on the sound source signal. The negative first drive signal DS1 can be a signal that is the inverse of the positive first drive signal DS1.

[0195] Multiple second amplifier circuits 421 to 424 can amplify the sound source signal to be equal to or different from the positive or negative first drive signal DS1 based on a predetermined gain value, so as to generate multiple second drive signals DS2-1 to DS2-4, and can supply the generated multiple second drive signals DS2-1 to DS2-4 to the corresponding second active vibration members 231, 232, 234 and 234.

[0196] The gain value of each of the plurality of second amplifier circuits 421, 422, 423 and 424 can be set to correspond to the tone of the sound to be realized in the device according to an embodiment of the present disclosure.

[0197] According to embodiments of this disclosure, the gain value of each of the plurality of second amplifier circuits 421, 422, 423, and 424 can be set such that each of the plurality of second drive signals DS2-1 to DS2-4 has the same phase as the first drive signal DS1. Therefore, the plurality of second amplifier circuits 421, 422, 423, and 424 can amplify the sound signal into a plurality of second drive signals DS2-1 to DS2-4 having the same phase as the first drive signal DS1, to output an amplified sound signal. In this case, as described above, the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the passive vibrating member 100 can be enhanced.

[0198] According to another embodiment of this disclosure, the gain value of each of the plurality of second amplifier circuits 421, 422, 423, and 424 can be set such that each of the plurality of second drive signals DS2-1 to DS2-4 has an out-of-phase phase with the first drive signal DS1. Therefore, the plurality of second amplifier circuits 421, 422, 423, and 424 can amplify the sound signal into a plurality of second drive signals DS2-1 to DS2-4 having an out-of-phase phase with the first drive signal DS1, to output an amplified sound signal. In this case, as described above, the sound characteristics and sound pressure level characteristics of the low-to-mid-range and high-to-mid-range vocal cords generated by the vibration of the passive vibrating member 100 can be enhanced.

[0199] According to embodiments of this disclosure, the gain value of each of the plurality of second amplifier circuits 421, 422, 423, and 424 can be set such that at least one or more of the plurality of second drive signals DS2-1 to DS2-4 have a phase and amplitude different from at least one or more of the phase and amplitude of the first drive signal DS1. Therefore, each of the plurality of second amplifier circuits 421, 422, 423, and 424 can amplify the sound signal into a plurality of second drive signals DS2-1 to DS2-4 having a phase and amplitude different from at least one or more of the phase and amplitude of the first drive signal DS1, and can output the amplified sound signal. For example, the plurality of second drive signals DS2-1 to DS2-4 can be the same or different. For example, at least one or more of the phase and amplitude of each of the plurality of second drive signals DS2-1 to DS2-4 can be the same or different from one or more of the phase and amplitude of the first drive signal DS1. For example, each of the plurality of second driving signals DS2-1 to DS2-4 may have the same phase as the first driving signal DS1, and may have an amplitude greater than or less than the amplitude of the first driving signal DS1. In this case, as described above, various pitched vocal cord sounds based on the vibration of the passive vibrating member 100 can be realized, and the sound characteristics and sound pressure level characteristics of various pitched vocal cords generated by the vibration of the passive vibrating member 100 can be enhanced.

[0200] Figure 13 This is a block diagram of a vibration drive circuit according to a second embodiment of the present disclosure.

[0201] Reference Figure 2 and Figure 13 According to the second embodiment of the present disclosure, the vibration drive circuit 400 can generate a first drive signal DS1 and a plurality of second drive signals DS2-1 to DS2-4 for vibrating (or shifting) each of the first vibration portion 210 and the second vibration portion 230 based on a sound source signal SS input from the host device (or host drive circuit), and can supply the generated drive signals DS1 and DS2-1 to DS2-4 to the corresponding vibration portions 210 and 230.

[0202] The vibration drive circuit 400 according to the second embodiment of this disclosure may include an amplifier circuit 430 and a signal conversion component 440.

[0203] Amplifier circuit 430 can simultaneously receive the same sound source signal and amplify the sound source signal based on a predetermined gain value to generate a sound source amplified signal SAS. For example, amplifier circuit 430 may include a preamplifier and a main amplifier. The sound source signal (or sound signal) SS input to vibration drive circuit 400 can be mainly amplified by the preamplifier, and the signal mainly amplified by the preamplifier can be additionally amplified by the main amplifier and can be output as the sound source amplified signal SAS.

[0204] The signal conversion component 440 can convert the amplified sound source signal SAS supplied from the amplifier circuit 430 into drive signals DS1 and DS2-1 to DS2-4, and can supply the drive signals DS1 and DS2-1 to DS2-4 to the corresponding active vibration components 211, 231, 232, 233 and 234. For example, the signal conversion component 440 can convert the amplified sound source signal SAS supplied from the amplifier circuit 430 into a drive signal DS based on a predetermined signal conversion coefficient (or gain value), and can supply the drive signals DS1 and DS2-1 to DS2-4 to the corresponding active vibration components 211, 231, 232, 233 and 234.

[0205] According to embodiments of this disclosure, the signal conversion component 440 may include multiple signal conversion circuits 441 and 451 to 454 corresponding to the first active vibration component 211 and multiple second active vibration components 231, 232, 233 and 234, respectively. For example, the signal conversion component 440 may include a first signal conversion circuit 441 and multiple second signal conversion circuits 451 to 454. For example, driving... Figure 3 and Figure 7 The vibration drive circuit 400 of the embodiment of this disclosure shown may include a first signal conversion circuit 441, a second-first signal conversion circuit 451, and a second-second signal conversion circuit 452. For example, driving... Figure 9 and Figure 11 The vibration drive circuit 400 of the embodiment of the present disclosure shown may include a first signal conversion circuit 441 and second-1 to second-4 signal conversion circuits 451 to 454.

[0206] The first signal conversion circuit 441 can convert the amplified sound source signal SAS supplied from the amplifier circuit 430 into a positive or negative first drive signal DS1 based on a predetermined signal conversion coefficient (or gain value), and can supply the generated first drive signal DS1 to the first active vibration member 211. For example, the first signal conversion circuit 441 can convert the amplified sound source signal SAS into a positive or negative first drive signal DS1 with a first amplitude based on a predetermined signal conversion coefficient (or gain value). For example, the positive first drive signal DS1 and the negative first drive signal DS1 can have the same period and first amplitude. The first amplitude of each of the positive and negative first drive signals DS1 can be increased or decreased based on the sound source signal. The negative first drive signal DS1 can be a signal that is the inverse of the positive first drive signal DS1.

[0207] Multiple second signal conversion circuits 451 to 454 can amplify the sound source signal to be equal to or different from the positive or negative first drive signal DS1 based on a predetermined signal conversion coefficient (or gain value) to generate multiple second drive signals DS2-1 to DS2-4, and can supply the generated multiple second drive signals DS2-1 to DS2-4 to the corresponding second active vibration members 231, 232, 233 and 234.

[0208] The signal conversion coefficient (or gain value) of each of the plurality of second signal conversion circuits 451 to 454 can be set to correspond to the tone of the sound to be realized in the device according to the embodiments of the present disclosure.

[0209] According to embodiments of this disclosure, the signal conversion coefficient (or gain value) of each of the plurality of second signal conversion circuits 451 to 454 can be set such that each of the plurality of second drive signals DS2-1 to DS2-4 has the same phase as the first drive signal DS1. Therefore, the plurality of second signal conversion circuits 451 to 454 can amplify the sound signal into a plurality of second drive signals DS2-1 to DS2-4 having the same phase as the first drive signal DS1, to output an amplified sound signal. In this case, as described above, the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the passive vibration member 100 can be enhanced.

[0210] According to another embodiment of this disclosure, the signal conversion coefficient (or gain value) of each of the plurality of second signal conversion circuits 451 to 454 can be set such that each of the plurality of second drive signals DS2-1 to DS2-4 has an out-of-phase phase with the first drive signal DS1. Therefore, the plurality of second signal conversion circuits 451 to 454 can amplify the sound signal into a plurality of second drive signals DS2-1 to DS2-4 having an out-of-phase phase with the first drive signal DS1, to output an amplified sound signal. In this case, as described above, the sound characteristics and sound pressure level characteristics of the low-to-mid-range and high-to-mid-range vocal cords generated by the vibration of the passive vibration member 100 can be enhanced.

[0211] According to embodiments of this disclosure, the signal conversion coefficient (or gain value) of each of the plurality of second signal conversion circuits 451 to 454 can be set such that at least one or more of the plurality of second driving signals DS2-1 to DS2-4 have a phase and amplitude different from at least one or more of the phase and amplitude of the first driving signal DS1. Therefore, each of the plurality of second signal conversion circuits 451 to 454 can amplify the sound signal into a plurality of second driving signals DS2-1 to DS2-4 having a phase and amplitude different from at least one or more of the phase and amplitude of the first driving signal DS1, and can output the amplified sound signal. For example, the plurality of second driving signals DS2-1 to DS2-4 can be the same or different. For example, at least one or more of the phase and amplitude of each of the plurality of second driving signals DS2-1 to DS2-4 can be the same or different from one or more of the phase and amplitude of the first driving signal DS1. For example, each of the plurality of second driving signals DS2-1 to DS2-4 may have the same phase as the first driving signal DS1, and may have an amplitude greater than or less than the amplitude of the first driving signal DS1. In this case, as described above, various pitched vocal cord sounds based on the vibration of the passive vibrating member 100 can be realized, and the sound characteristics and sound pressure level characteristics of various pitched vocal cords generated by the vibration of the passive vibrating member 100 can be enhanced.

[0212] As described above, the vibration drive circuit 400 according to the second embodiment of this disclosure may have the same characteristics as described above. Figure 12 The vibration drive circuit 400 described has the same effect as the one mentioned above. Figure 12 Compared to the described vibration drive circuit 400, the number of amplifier circuits used can be reduced.

[0213] Figure 14 It is along Figure 1 Another cross-sectional view taken from line A-A' shown. Figure 14 The above references are shown Figures 1 to 13 The described device includes an embodiment with multiple vibration devices. Therefore, in the following description, other elements besides the multiple vibration devices and related components are referred to by the same reference numerals, and repeated descriptions of them may be omitted.

[0214] Reference Figure 14 According to another embodiment of the present disclosure, the device may include a plurality of vibration devices 200-1 to 200-n, which are connected to the passive vibration member 100.

[0215] Each of the multiple vibration devices 200-1 to 200-n can be configured according to the above reference. Figures 1 to 13 One of the vibration devices described in the embodiments of this disclosure. For example, each of a plurality of vibration devices 200-1 to 200-n can be configured to be used in conjunction with the above-described vibration devices. Figures 1 to 13 The described vibration device 200 may be the same vibration device or a different vibration device. Therefore, repeated descriptions of each of the plurality of vibration devices 200-1 to 200-n can be omitted.

[0216] According to another embodiment of this disclosure, a plurality of vibration devices 200-1 to 200-n can be divided (or classified) into a first group and a second group. Each of the first group and the second group may include one or more of the plurality of vibration devices 200-1 to 200-n. For example, one or more of the plurality of vibration devices 200-1 to 200-n may be included in the first group, and one or more other vibration devices 200-1 to 200-n besides those included in the first group may be included in the second group. For example, the first group may be a first vibration group or a first drive group, and the second group may be a second vibration group or a second drive group.

[0217] The number of vibrating devices 200-1 to 200-n in the first group may be equal to or different from the number of vibrating devices 200-1 to 200-n in the second group.

[0218] According to another embodiment of this disclosure, a plurality of vibration devices 200-1 to 200-n can be divided (or classified) into a first group and a second group based on their arrangement positions. For example, regarding the arrangement positions along a first direction X and / or a second direction Y, vibration devices 200-1, 200-3, ... of the plurality of vibration devices 200-1 to 200-n may be included in the first group, and vibration devices 200-2, 200-4, ... and 200-n of the plurality of vibration devices 200-1 to 200-n may be included in the second group.

[0219] According to another embodiment of this disclosure, with respect to the centerline CL, the passive vibration member 100 may include a first region A1 and a second region A2. For example, the first region A1 may be the left side region of the passive vibration member 100, and the second region A2 may be the right side region of the passive vibration member 100. Therefore, vibration devices 200-1, 200-2, 200-3, ... arranged at the first region A1 of the passive vibration member 100 among the plurality of vibration devices 200-1 to 200-n may be included in a first group, and vibration devices ... and 200-n arranged at the second region A2 of the passive vibration member 100 among the plurality of vibration devices 200-1 to 200-n may be included in a second group.

[0220] According to embodiments of this disclosure, the drive signals applied to one or more vibrating devices 200-1 to 200-n included in the first group can be the same as the drive signals applied to one or more vibrating devices 200-1 to 200-n included in the second group. For example, each of the plurality of second drive signals and first drive signals applied to one or more vibrating devices 200-1 to 200-n included in the first group can have the same phase (or the same phase and the same amplitude) as each of the plurality of second drive signals and first drive signals applied to one or more vibrating devices 200-1 to 200-n included in the second group. Therefore, as described above, the sound characteristics and sound pressure level characteristics of the low-pitched vocal cords generated by the vibration of the passive vibrating member 100 can be further enhanced.

[0221] According to embodiments of this disclosure, each of the plurality of second drive signals applied to one or more vibrating devices 200-1 to 200-n included in each of the first and second groups may have a phase opposite to (or out of phase and with the same amplitude) the phase of the first drive signal applied to one or more vibrating devices 200-1 to 200-n included in each of the first and second groups. Therefore, as described above, the sound characteristics and sound pressure level characteristics of the low-to-mid-range and high-to-mid-range vocal cords generated by the vibration of the passive vibrating member 100 can be further enhanced.

[0222] According to another embodiment of this disclosure, the drive signal applied to one or more vibrating devices included in the first group may be different from the drive signal applied to one or more vibrating devices included in the second group. For example, at least one or more of the phase and amplitude of each of the first drive signal and / or multiple second drive signals applied to one or more vibrating devices included in the second group may be different from at least one or more of the phase and amplitude of each of the first drive signal and / or multiple second drive signals applied to one or more vibrating devices included in the first group. In this case, as described above, various tonal vocal cord sounds based on the vibration of the passive vibrating member 100 can be realized, and the sound characteristics and sound pressure level characteristics of various tonal vocal cords generated by the vibration of the passive vibrating member 100 can be enhanced.

[0223] Figure 15 This is a graph showing the sound output characteristics of a device according to a first embodiment of this disclosure. Figure 15 In the diagram, the horizontal axis represents frequency (Hz), and the vertical axis represents amplitude. Amplitude is expressed as a numerical value relative to the maximum amplitude. Furthermore, Figure 15 A log-log number graph is shown. Figure 15 In the diagram, the thick solid line represents the sound output characteristics when the second driving signal applied to each of the plurality of second active vibrating components has the same phase as the first driving signal applied to the first active vibrating component, as shown above. Figure 6A The solid line represents the sound output characteristics when the second drive signal applied to each of the plurality of second active vibrating members has a phase opposite to the phase of the first drive signal applied to the first active vibrating member, as described above. Figure 6B As stated above.

[0224] like Figure 15 As shown, compared to the solid line, the sound pressure level increases within a range of 400 Hz or less in the thick solid line. Therefore, when the second drive signal applied to each of the plurality of second active vibrating members has the same phase as the first drive signal applied to the first active vibrating member, it can be seen that the sound characteristics and sound pressure level are enhanced within a range of 400 Hz or less.

[0225] like Figure 15 As shown, compared to the solid line, the sound pressure level increases in the range of 400 Hz or greater in the thick solid line. Therefore, when the second drive signal applied to each of the plurality of second active vibrating members has a phase opposite to the phase of the first drive signal applied to the first active vibrating member, it can be seen that the sound characteristics and sound pressure level are enhanced in the range of 400 Hz or greater.

[0226] The vibration device according to embodiments of this disclosure can be applied to vibration devices installed at the device. Devices according to embodiments of this disclosure can be applied to mobile devices, video phones, smartwatches, watch phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, bending devices, sliding devices, variable devices, electronic organizers, e-books, portable multimedia players (PMPs), personal digital assistants (PDAs), MP3 players, mobile medical devices, desktop personal computers (PCs), laptop PCs, netbooks, workstations, navigation devices, car navigation devices, car display devices, automotive equipment, theater equipment, theater display devices, TVs, wallpaper display devices, signage devices, gaming devices, laptops, monitors, camera devices, camcorders, home appliances, etc. Furthermore, the vibration device according to embodiments of this disclosure can be applied to organic light-emitting lighting devices or inorganic light-emitting lighting devices. When the vibration device according to embodiments of this disclosure is applied to a lighting device, the lighting device can be used as both lighting and a speaker. Furthermore, when the vibration device of the embodiments of this disclosure is applied to mobile devices, the vibration device can be used as one or more of a speaker, a receiver, and a tactile device, but the embodiments of this disclosure are not limited thereto.

[0227] The following describes an apparatus according to an embodiment of this disclosure.

[0228] An apparatus according to an embodiment of the present disclosure may include: a passive vibration member; a vibration device connected to the rear surface of the passive vibration member; and a support member located at the rear surface of the passive vibration member. The vibration device may include: a first vibration portion; a second vibration portion connected to the periphery of the first vibration portion; and a connecting portion connected to the periphery of the second vibration portion and the rear surface of the passive vibration member.

[0229] According to some embodiments of the present disclosure, the first vibration portion may include a first active vibration member, which includes a first peripheral portion and a second peripheral portion that are parallel to each other. The second vibration portion may include a second-1 active vibration member and a second-2 active vibration member that are respectively connected to the first peripheral portion and the second peripheral portion of the first active vibration member, and the second-1 active vibration member and the second-2 active vibration member may be configured to be parallel to the central portion of the first active vibration member therebetween.

[0230] According to some embodiments of this disclosure, each of the 2-1 active vibration member and the 2-2 active vibration member may include: a first peripheral portion overlapping the first active vibration member; and a second peripheral portion connected to a connecting portion, the connecting portion including: a first connecting member connected between the second peripheral portion of the 2-1 active vibration member and the passive vibration member; and a second connecting member connected between the second peripheral portion of the 2-2 active vibration member and the passive vibration member.

[0231] According to some embodiments of this disclosure, the corner of the first active vibration member may overlap with the first peripheral portion of each of the second-1 active vibration member and the second-2 active vibration member.

[0232] According to some embodiments of this disclosure, each of the second-1 active vibration member and the second-2 active vibration member may be configured to be inclined relative to each of the first peripheral portion and the second peripheral portion of the first active vibration member.

[0233] According to some embodiments of this disclosure, each of the 2-1 active vibration member and the 2-2 active vibration member may include: a first corner overlapping with the first active vibration member; and a second corner connected to a connecting portion, the connecting portion including: a first connecting member connected between the second corner of the 2-1 active vibration member and the passive vibration member; and a second connecting member connected between the second corner of the 2-2 active vibration member and the passive vibration member.

[0234] According to some embodiments of the present disclosure, the first vibration portion may include a first active vibration member, the first active vibration member including a first peripheral portion to a fourth peripheral portion, and the second vibration portion may include: a second-1 active vibration member connected to the first peripheral portion of the first active vibration member; a second-2 active vibration member connected to the second peripheral portion of the first active vibration member in a parallel manner with the second-1 active vibration member, wherein the central portion of the first active vibration member is located between the second-2 active vibration member and the second-1 active vibration member; a second-3 active vibration member connected to the third peripheral portion of the first active vibration member; and a second-4 active vibration member connected to the fourth peripheral portion of the first active vibration member in a parallel manner with the second-3 active vibration member, wherein the central portion of the first active vibration member is located between the second-4 active vibration member and the second-3 active vibration member.

[0235] According to some embodiments of this disclosure, the width of each of the 2-1 to 2-4 active vibration members may be smaller than the width of the first active vibration member.

[0236] According to some embodiments of this disclosure, each of the 2-1 to 2-4 active vibration members may include: a first peripheral portion overlapping with the first active vibration member; and a second peripheral portion connected to a connecting portion, the connecting portion including: a first connecting member connecting the second peripheral portion of the 2-1 active vibration member and the passive vibration member; a second connecting member connecting the second peripheral portion of the 2-2 active vibration member and the passive vibration member; a third connecting member connecting the second peripheral portion of the 2-3 active vibration member and the passive vibration member; and a fourth connecting member connecting the second peripheral portion of the 2-4 active vibration member and the passive vibration member.

[0237] According to some embodiments of this disclosure, the corner of the first active vibration member may overlap with the first peripheral portion of each of the second-1st to second-4th active vibration members.

[0238] According to some embodiments of this disclosure, each of the 2-1 active vibration member and the 2-2 active vibration member may be configured to be inclined relative to each of the first and second peripheral portions of the first active vibration member, and each of the 2-3 active vibration member and the 2-4 active vibration member may be configured to be inclined relative to each of the third and fourth peripheral portions of the first active vibration member.

[0239] According to some embodiments of this disclosure, each of the 2-1 to 2-4 active vibration members may include: a first corner overlapping with the first active vibration member; and a second corner connected to a connecting portion, the connecting portion including: a first connecting member connecting the second corner of the 2-1 active vibration member to the passive vibration member; a second connecting member connecting the second corner of the 2-2 active vibration member to the passive vibration member; a third connecting member connecting the second corner of the 2-3 active vibration member to the passive vibration member; and a fourth connecting member connecting the second corner of the 2-4 active vibration member to the passive vibration member.

[0240] An apparatus according to an embodiment of the present disclosure may include: a passive vibration member; a plurality of vibration devices connected to the rear surface of the passive vibration member; and a support member located at the rear surface of the passive vibration member, each of the plurality of vibration devices including: a first active vibration member; a second-1 active vibration member and a second-2 active vibration member connected to the periphery of the first active vibration member in a manner parallel to the central portion of the first active vibration member between the second-1 active vibration member and the second-2 active vibration member; and a connecting portion connected to the rear surface of the passive vibration member and each of the second-1 active vibration member and the second-2 active vibration member.

[0241] According to some embodiments of the present disclosure, the first active vibration member may include a first peripheral portion and a second peripheral portion that are parallel to each other, and the first peripheral portions of the second-1 active vibration member and the second-2 active vibration member may be respectively connected to the first peripheral portion and the second peripheral portion of the first active vibration member.

[0242] According to some embodiments of this disclosure, the corner of the first active vibration member may overlap with the first peripheral portion of each of the second-1 active vibration member and the second-2 active vibration member.

[0243] According to some embodiments of this disclosure, each of the second-1 active vibration member and the second-2 active vibration member may be configured to be inclined relative to each of the first peripheral portion and the second peripheral portion of the first active vibration member.

[0244] According to some embodiments of this disclosure, each of the plurality of vibration devices may further include: a second-third active vibration member and a second-fourth active vibration member, which are connected to the periphery of the first active vibration member in a manner parallel to the central portion of the first active vibration member between the second-third active vibration member and the second-fourth active vibration member, and the connection portion may be connected to the rear surface of the passive vibration member and each of the second-first to second-fourth active vibration members.

[0245] According to some embodiments of the present disclosure, the first active vibration member may include a first peripheral portion and a second peripheral portion that are parallel to each other, as well as a third peripheral portion and a fourth peripheral portion that are parallel to each other. The first peripheral portions of the second-1 active vibration member and the second-2 active vibration member may be connected to the first peripheral portion and the second peripheral portion of the first active vibration member, respectively. The first peripheral portions of the second-3 active vibration member and the second-4 active vibration member may be connected to the third peripheral portion and the fourth peripheral portion of the first active vibration member, respectively.

[0246] According to some embodiments of this disclosure, the corner of the first active vibration member may overlap with the first peripheral portion of each of the second-1 active vibration member and the second-2 active vibration member.

[0247] According to some embodiments of this disclosure, the first active vibration member may include a first peripheral portion and a second peripheral portion that are parallel to each other, as well as a third peripheral portion and a fourth peripheral portion that are parallel to each other. Each of the second-1 active vibration member and the second-2 active vibration member may be configured to be inclined relative to each of the first peripheral portion and the second peripheral portion of the first active vibration member, and each of the second-3 active vibration member and the second-4 active vibration member may be configured to be inclined relative to each of the third peripheral portion and the fourth peripheral portion of the first active vibration member.

[0248] According to some embodiments of this disclosure, multiple vibration devices can be divided into a first group comprising one or more vibration devices and a second group comprising one or more vibration devices, and the number of vibration devices included in the first group may be equal to or different from the number of vibration devices included in the second group.

[0249] According to some embodiments of this disclosure, the drive signal applied to one or more vibration devices included in the first group may be the same as or different from the drive signal applied to one or more vibration devices included in the second group.

[0250] According to some embodiments of this disclosure, an active vibration component may include a vibration device comprising a piezoelectric material.

[0251] According to some embodiments of the present disclosure, each of the first active vibration member, the second-1st active vibration member, and the second-2nd active vibration member may include a vibration device, the vibration device including a piezoelectric layer, the piezoelectric layer including: a plurality of piezoelectric portions comprising a piezoelectric material; and a flexible portion between the plurality of piezoelectric portions.

[0252] According to some embodiments of this disclosure, at least one or more of the plurality of piezoelectric portions disposed at each of the 2-1 active vibration member and the 2-2 active vibration member may overlap with at least one or more of the plurality of piezoelectric portions disposed at the first active vibration member.

[0253] According to some embodiments of this disclosure, the phase of the driving signal applied to each of the 2-1 active vibration member and the 2-2 active vibration member may be the same as or opposite to the phase of the driving signal applied to the first active vibration member.

[0254] According to some embodiments of this disclosure, the driving signal applied to the 2-1 active vibration member may be the same as or different from the driving signal applied to the 2-2 active vibration member.

[0255] According to some embodiments of this disclosure, the phase of the driving signal applied to each of the 2-1 active vibration member and the 2-2 active vibration member may be the same as or opposite to the phase of the driving signal applied to the first active vibration member.

[0256] According to some embodiments of this disclosure, the phase of the driving signal applied to each of the 2-1 to 2-4 active vibration members may be the same as or opposite to the phase of the driving signal applied to the first active vibration member.

[0257] According to some embodiments of this disclosure, at least one or more of the drive signals applied to the 2-1 to 2-4 active vibration members may have at least one or more different phases and different amplitudes.

[0258] According to some embodiments of this disclosure, at least one or more of the phase and amplitude of the driving signal applied to each of the 2-1 to 2-4 active vibration members may be different from at least one or more of the phase and amplitude of the driving signal applied to the first active vibration member.

[0259] According to some embodiments of this disclosure, the vibration device may further include a mass member at the first active vibration member.

[0260] According to some embodiments of this disclosure, the connecting portion may include an elastic material.

[0261] According to some embodiments of this disclosure, the passive vibration component may be a display panel including a display area having a plurality of 5 pixels to realize an image, or may include one or more materials selected from wood, rubber, plastic, flexible glass, fiber, cloth, paper, metal, carbon, mirror and leather.

[0262] It will be apparent to those skilled in the art that various modifications and changes can be made to this disclosure without departing from its spirit or scope. Therefore, this disclosure is intended to...

[0263] Any modifications and variations that cover the contents of this disclosure are permitted as long as they fall within the scope of the appended claims and their equivalents.

Claims

1. A device for outputting sound, comprising: Vibration equipment capable of active vibration; A passive vibration member, the rear surface of which is connected to the vibration device, such that the passive vibration member can vibrate based on the drive of the vibration device; A support member located behind the passively vibrating member; as well as A coupling member is coupled between the rear peripheral portion of the passive vibration member and the support member to provide a clearance space between the rear surface of the passive vibration member and the support member. The vibration device includes: First vibration component; The second vibrating part is connected to the periphery of the first vibrating part; and The connecting portion, which connects to the periphery of the second vibration portion and the rear surface of the passive vibration member, ensures that there is no direct connecting member between the vibration device and the support member. The first vibrating portion is spaced apart from the rear surface of the passive vibrating member and is connected only to the second vibrating portion, but not to each of the passive vibrating member and the support member. The connecting portion includes a first surface connected to the rear surface of the passive vibration member and a second surface opposite the first surface that is to be connected to the second vibration portion.

2. The device according to claim 1, wherein: The first vibrating part includes a first active vibrating component, which includes a first peripheral portion and a second peripheral portion that are parallel to each other. The second vibration part includes a second-1 active vibration member and a second-2 active vibration member respectively connected to the first peripheral portion and the second peripheral portion of the first active vibration member, and The second-1 active vibration member and the second-2 active vibration member are arranged to be parallel to the central portion of the first active vibration member therebetween.

3. The device according to claim 2, wherein, Each of the second-1 active vibration component and the second-2 active vibration component includes: The first peripheral portion overlapping with the first active vibration component; and The second peripheral portion is connected to the connecting portion. The connecting portion includes: A first connecting member is connected between the second peripheral portion of the second-1 active vibration member and the passive vibration member; and The second connecting member is connected between the second peripheral portion of the second-2 active vibration member and the passive vibration member.

4. The device according to claim 3, wherein, The corner of the first active vibration member overlaps with the first peripheral portion of each of the second-1 active vibration member and the second-2 active vibration member.

5. The device according to claim 2, wherein, Each of the second-1 active vibration member and the second-2 active vibration member is configured to be inclined relative to each of the first outer peripheral portion and the second outer peripheral portion of the first active vibration member.

6. The device according to claim 2, wherein, Each of the second-1 active vibration component and the second-2 active vibration component includes: The first corner overlapping with the first active vibration component; and Connected to the second corner of the connecting portion. The connecting portion includes: A first connecting member is connected between the second corner portion of the second-1 active vibration member and the passive vibration member; and The second connecting member is connected between the second corner of the second-2 active vibration member and the passive vibration member.

7. The device according to claim 1, wherein: The first vibration component includes a first active vibration member, which includes a first peripheral portion to a fourth peripheral portion, and The second vibration component includes: The second-1 active vibration component is connected to the first peripheral portion of the first active vibration component; The second-2 active vibration member is connected to the second peripheral portion of the first active vibration member in a manner parallel to the second-1 active vibration member, with the central portion of the first active vibration member between the second-2 active vibration member and the second-1 active vibration member. The second and third active vibration components are connected to the third peripheral portion of the first active vibration component; and The second-fourth active vibration member is connected to the fourth peripheral portion of the first active vibration member in a manner parallel to the second-third active vibration member, with the central portion of the first active vibration member located between the second-fourth active vibration member and the second-third active vibration member.

8. The device according to claim 7, wherein, The width of each of the second-1st to the second-4th active vibration components is smaller than the width of the first active vibration component.

9. The device according to claim 7, wherein: Each of the 2-1 to 2-4 active vibration components includes: The first peripheral portion overlapping with the first active vibration component; and The second peripheral portion is connected to the connecting portion. The connection portion includes: A first connecting member is connected between the second peripheral portion of the second-1 active vibration member and the passive vibration member; A second connecting member is connected between the second peripheral portion of the second-2nd active vibration member and the passive vibration member; A third connecting member is connected between the second peripheral portion of the second-third active vibration member and the passive vibration member; and A fourth connecting member is connected between the second outer portion of the second-fourth active vibration member and the passive vibration member.

10. The device according to claim 9, wherein, The corner of the first active vibration member overlaps with the first peripheral portion of each of the second-1st to the second-4th active vibration members.

11. The device according to claim 7, wherein: Each of the second-1 active vibration member and the second-2 active vibration member is configured to be inclined relative to each of the first and second outer peripheral portions of the first active vibration member; as well as Each of the second-third and second-fourth active vibration components is configured to be inclined relative to each of the third and fourth peripheral portions of the first active vibration component.

12. The device according to claim 7, wherein: Each of the 2-1 to 2-4 active vibration components includes: The first corner overlapping with the first active vibration component; and Connected to the second corner of the connecting portion. The connection portion includes: A first connecting member is connected between the second corner of the second-1 active vibration member and the passive vibration member; The second connecting member is connected between the second corner of the second-2 active vibration member and the passive vibration member; A third connecting member is connected between the second corner of the second-third active vibration member and the passive vibration member; and A fourth connecting member is connected between the second corner of the second-fourth active vibration member and the passive vibration member.

13. A device for outputting sound, comprising: Multiple vibrating devices capable of active vibration; A passive vibration member, the rear surface of which is connected to the plurality of vibration devices, such that the passive vibration member can vibrate based on the drive of the plurality of vibration devices; A support member, located behind the passively vibrating member, and A coupling member is coupled between the rear peripheral portion of the passive vibration member and the support member to provide a clearance space between the rear surface of the passive vibration member and the support member. Each of the plurality of vibration devices includes: First active vibration component; The second-1 active vibration member and the second-2 active vibration member are connected to the periphery of the first active vibration member in a manner parallel to the central portion of the first active vibration member between the second-1 active vibration member and the second-2 active vibration member; and The connection portion, which connects to the rear surface of the passive vibration member and each of the 2-1 and 2-2 active vibration members, ensures that there is no direct connection between the vibration device and the support member. The first active vibration member is spaced apart from the rear surface of the passive vibration member and is connected only to each of the second-1st and second-2nd active vibration members, but not to each of the passive vibration member and the support member. The connecting portion includes a first surface connected to the rear surface of the passive vibration member and a second surface opposite to the first surface, which is to be connected to each of the second-1 active vibration member and the second-2 active vibration member.

14. The device according to claim 13, wherein: The first active vibration component includes a first peripheral portion and a second peripheral portion that are parallel to each other, and The first peripheral portion of the second-1 active vibration member and the first peripheral portion of the second-2 active vibration member are respectively connected to the first peripheral portion and the second peripheral portion of the first active vibration member.

15. The device according to claim 13, wherein, The corner of the first active vibration member overlaps with the first peripheral portion of each of the second-1 active vibration member and the second-2 active vibration member.

16. The device according to claim 13, wherein, Each of the second-1 active vibration member and the second-2 active vibration member is configured to be inclined relative to each of the first outer peripheral portion and the second outer peripheral portion of the first active vibration member.

17. The device according to claim 13, wherein: Each of the plurality of vibration devices further includes: a second-third active vibration member and a second-fourth active vibration member, which are connected to the periphery of the first active vibration member in a manner parallel to the central portion of the first active vibration member between the second-third active vibration member and the second-fourth active vibration member. The connecting portion is connected to the rear surface of the passive vibration member and each of the second-1st to the second-4th active vibration members.

18. The apparatus according to claim 17, wherein: The first active vibration component includes a first peripheral portion and a second peripheral portion that are parallel to each other, as well as a third peripheral portion and a fourth peripheral portion that are parallel to each other. The first peripheral portions of the second-1 active vibration member and the second-2 active vibration member are respectively connected to the first peripheral portion and the second peripheral portion of the first active vibration member, and The first peripheral portions of the second-third and second-fourth active vibration components are respectively connected to the third and fourth peripheral portions of the first active vibration component.

19. The device according to claim 17, wherein, The corner of the first active vibration member overlaps with the first peripheral portion of each of the second-1 active vibration member and the second-2 active vibration member.

20. The apparatus according to claim 17, wherein: The first active vibration component includes a first peripheral portion and a second peripheral portion that are parallel to each other, as well as a third peripheral portion and a fourth peripheral portion that are parallel to each other. Each of the second-1 active vibration member and the second-2 active vibration member is configured to be inclined relative to each of the first and second outer peripheral portions of the first active vibration member, and Each of the second-third and second-fourth active vibration components is configured to be inclined relative to each of the third and fourth peripheral portions of the first active vibration component.

21. The apparatus according to claim 17, wherein: The plurality of vibration devices are grouped into a first group comprising one or more vibration devices and a second group comprising one or more vibration devices, and The number of vibration devices included in the first group is equal to or different from the number of vibration devices included in the second group.

22. The device according to claim 21, wherein, The drive signal applied to one or more vibration devices included in the first group may be the same as or different from the drive signal applied to one or more vibration devices included in the second group.

23. The device according to any one of claims 2 to 21, wherein, The active vibration component includes a vibration device containing piezoelectric material.

24. The device according to any one of claims 2 to 21, wherein: Each of the first active vibration component, the second-1st active vibration component, and the second-2nd active vibration component includes a vibration device, the vibration device including a piezoelectric layer. The piezoelectric layer includes: It includes multiple piezoelectric parts of a piezoelectric material; and The flexible portion between the plurality of piezoelectric parts.

25. The device according to claim 24, wherein, At least one of the plurality of piezoelectric portions disposed at each of the second-1 active vibration member and the second-2 active vibration member overlaps with at least one of the plurality of piezoelectric portions disposed at the first active vibration member.

26. The device according to any one of claims 2 to 20, wherein, The phase of the driving signal applied to each of the second-1 active vibration member and the second-2 active vibration member is the same as or opposite to the phase of the driving signal applied to the first active vibration member.

27. The device according to any one of claims 2 to 20, wherein, The driving signal applied to the 2-1 active vibration member may be the same as or different from the driving signal applied to the 2-2 active vibration member.

28. The device according to claim 27, wherein, The phase of the driving signal applied to each of the second-1 active vibration member and the second-2 active vibration member is the same as or opposite to the phase of the driving signal applied to the first active vibration member.

29. The device according to any one of claims 7 to 12 and 17 to 20, wherein, The phase of the driving signal applied to each of the 2-1 to 2-4 active vibration members is the same as or opposite to the phase of the driving signal applied to the first active vibration member.

30. The device according to any one of claims 7 to 12 and 17 to 20, wherein, At least one of the driving signals applied to the 2-1 to 2-4 active vibration components has a different phase and a different amplitude.

31. The device according to any one of claims 7 to 12 and 17 to 20, wherein, At least one of the phase and amplitude of the driving signal applied to each of the 2-1 to 2-4 active vibration members is different from at least one of the phase and amplitude of the driving signal applied to the first active vibration member.

32. The device according to any one of claims 2 to 22, wherein, The vibration device also includes a mass component at the first active vibration component.

33. The device according to any one of claims 1 to 22, wherein, The connecting portion comprises an elastic material.

34. The device according to any one of claims 1 to 22, wherein, The passive vibration component is a display panel that includes a display area with multiple pixels to realize an image, or it includes one or more materials selected from wood, rubber, plastic, flexible glass, fiber, cloth, paper, metal, carbon, mirror, and leather.

35. A device for outputting sound, comprising: Vibration equipment capable of active vibration; A passive vibration member, the rear surface of which is connected to the vibration device, such that the passive vibration member can vibrate based on the drive of the vibration device; A support member, located behind the passively vibrating member, and A coupling member is coupled between the rear peripheral portion of the passive vibration member and the support member to provide a clearance space between the rear surface of the passive vibration member and the support member. The vibration device includes: Three active vibration components, including two outer active vibration components and a middle active vibration component, wherein the middle active vibration component partially overlaps with and is connected to each of the two outer active vibration components, and The connection portion, which connects to the rear surface of the passive vibration member and each of the two outer active vibration members, ensures that there is no direct connection between the vibration device and the support member. The intermediate active vibration member is spaced apart from the rear surface of the passive vibration member and is connected only to each of the two outer active vibration members, but not to each of the passive vibration member and the support member. The connecting portion includes a first surface connected to the rear surface of the passive vibration member and a second surface opposite the first surface, which is to be connected to each of the two outer active vibration members.

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