Vibrating device and vehicle device comprising same

Abstract

This disclosure provides a vibration device and a vehicle device including the same. The vibration device includes: a first vibration generating module having a first vibration portion, and a second vibration generating module spaced apart from the first vibration generating module and having a second vibration portion different from the first vibration portion.

Description

Technical Field

[0001] This disclosure relates to a vibration device and a vehicle device including the same. Background Technology

[0002] Recently, there has been a growing demand for sound equipment or soundbars, including those that use vibrating devices to output sound through one or more speakers.

[0003] However, soundbars suffer from problems such as deterioration of directivity, acoustic characteristics, and / or sound pressure level due to acoustic interference between multiple speakers. Summary of the Invention

[0004] The inventors of this disclosure, recognizing the aforementioned problems and preventing or minimizing acoustic interference between multiple loudspeakers, have conducted various studies and experiments to invent a vibration device that improves the directivity, acoustic characteristics, and / or sound pressure level of the device while simultaneously providing tactile feedback. Through various studies and experiments, the inventors of this invention have invented a vibration device capable of improving directivity, acoustic characteristics, and / or sound pressure level while simultaneously providing tactile feedback, and a vehicle device including the vibration device.

[0005] One or more aspects of this disclosure are intended to provide a vibration device capable of preventing or minimizing acoustic interference between multiple loudspeakers, and a vehicle device including the vibration device.

[0006] One or more aspects of this disclosure aim to provide a vibration device capable of improving directionality, acoustic characteristics and / or sound pressure characteristics, and a vehicle device including the vibration device.

[0007] One or more aspects of this disclosure are intended to provide a vibrating device in which aerial tactile sensation and / or tactile sensation can be realized, and a vehicle device including the vibrating device.

[0008] Additional features, advantages, and aspects of this disclosure are set forth in part in this disclosure and will be apparent from it or may be learned by practicing the inventive concept provided herein. Other features, advantages, and aspects of this disclosure may be realized and obtained from the description and claims provided in or derived from this disclosure, as well as the accompanying drawings.

[0009] In order to realize these and other advantages and aspects of this disclosure, as realized and broadly described herein, in one or more aspects, the vibration device may include a first vibration generating module having a first vibration portion, and a second vibration generating module spaced apart from the first vibration generating module and having a second vibration portion different from the first vibration portion.

[0010] In one or more aspects, the vehicle equipment may include a vibrating member exposed to an interior space and a sound generating device that outputs sound to the interior space. The sound generating device may be a vibration device comprising a first vibration generating module having a first vibrating portion and a second vibration generating module spaced apart from the first vibration generating module and having a second vibrating portion different from the first vibrating portion.

[0011] Details of other exemplary embodiments will be included in the detailed description and accompanying drawings of this disclosure.

[0012] According to one or more embodiments of this disclosure, the vibration device and vehicle equipment including therein can prevent or minimize acoustic interference between multiple speakers.

[0013] According to one or more embodiments of this disclosure, vibration devices and vehicle equipment including them can improve directionality, acoustic characteristics and / or sound pressure characteristics, and simultaneously achieve air tactile sensation and / or tactile sensation.

[0014] According to one or more embodiments of this disclosure, vibration devices and vehicle equipment including them can be driven with low power because acoustic and / or sound pressure characteristics can be improved and power consumption can be reduced.

[0015] According to one or more embodiments of this disclosure, vibration devices and vehicle equipment including them have the effect of simplified structure and ease of design.

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

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

[0018] The accompanying drawings are included to provide a further understanding of the present disclosure. The drawings are incorporated into and constitute a part of the present disclosure. The drawings illustrate aspects and embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0019] Figure 1 This is a diagram illustrating a vibration device according to one embodiment of the present disclosure.

[0020] Figure 2 This is an example of one embodiment according to the present disclosure. Figure 1 A plan view of an example of the first vibration generation module shown.

[0021] Figure 3 It is according to one embodiment of this disclosure along Figure 2 The cross-sectional view shown is taken by line I-I'.

[0022] Figure 4 This is an example of one embodiment according to the present disclosure. Figure 1 A plan view of an example of the second vibration generation module.

[0023] Figure 5 It is according to one embodiment of this disclosure along Figure 4 The cross-sectional view taken by line II-II' shown.

[0024] Figure 6 This is a schematic illustration of a side view of a vibration device according to another embodiment of the present disclosure.

[0025] Figure 7 This is an example of another embodiment according to the present disclosure. Figure 6 A plan view of an example of the first vibration generation module is shown.

[0026] Figure 8 It is according to another embodiment of this disclosure along Figure 7 The cross-sectional view taken by line III-III' shown.

[0027] Figure 9 This is a schematic illustration of a side view of a vibration device according to another embodiment of the present disclosure.

[0028] Figure 10 This is a diagram illustrating a vehicle device according to one embodiment of the present disclosure.

[0029] Throughout the accompanying drawings and detailed description, unless otherwise stated, the same reference numerals shall be construed as referring to the same elements, features, and structures. For clarity, illustration, and convenience, the relative sizes and depictions of these elements may be exaggerated. Detailed Implementation

[0030] Reference will now be made in detail to embodiments of this disclosure, 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 will be omitted or may be briefly discussed where it is determined that such detailed descriptions would unnecessarily obscure the essential points of the inventive concept. The described process steps and / or order of operations are exemplary; however, the order of steps and / or operations is not limited to the order set forth herein and may be varied as is known in the art, except for steps and / or operations that must occur in a specific order. The same reference numerals always refer to the same elements. The names of the corresponding elements used in the following explanation may be chosen solely for the convenience of writing the specification and may therefore differ from those used in actual products.

[0031] The advantages and features of this disclosure, as well as its implementation methods, will be illustrated by the following embodiments described with reference to the accompanying drawings. However, this disclosure may be implemented in different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art.

[0032] The shapes, sizes, scales, angles, and quantities 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. The same reference numerals always refer to the same 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.

[0033] When using the terms “comprising,” “having,” or “including” as described in this disclosure, additional components may be added unless “only-” is used. Unless otherwise stated, singular terms may include plural forms.

[0034] When interpreting a component, even without an explicit description of such an error or tolerance range, the component is interpreted as including an error or tolerance range.

[0035] When describing positional relationships, for example, when the positional relationship between two components is described as such as “above,” “over,” “below,” and “adjacent,” one or more other components may be positioned between the two components unless more restrictive terms such as “exactly” or “directly” are used.

[0036] When describing temporal relationships, such as when time sequence is described as "after", "following", "next" and "before", discontinuous situations may be included unless more restrictive terms such as "exactly", "immediately" or "directly" are used.

[0037] It should 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 and may not specify any order. 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.

[0038] 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 are not used to limit the nature, basis, order, or number of elements.

[0039] When a component (e.g., layer, film, region, component, segment, etc.) is described as “connected,” “joined,” “attached,” “bonded,” etc., to another component, unless otherwise stated, the component may not only be directly connected, joined, attached, bonded, etc., to another component, but also indirectly connected, joined, attached, bonded, etc., with one or more intermediate components disposed or inserted between the components.

[0040] Unless otherwise stated, the description of a component (e.g., layer, film, region, assembly, segment, etc.) "contacting" or "overlapping" with another component means that the component can not only directly contact or overlap with another component, but also indirectly contact or overlap through one or more intermediate components disposed or inserted between the components.

[0041] The terms “first element,” “second element,” and / or “third element” should be understood as one of the first, second, and third elements, or any or all combinations of the first, second, and third elements. For example, A, B, and / or C can refer to only A; only B; only C; any or some combinations of A, B, and C; or all of A, B, and C.

[0042] The term "at least one" should be understood to include any and all combinations of one or more of the associated listed items. For example, "at least one of the first, second, and third items" means a combination of two or more of the first, second, and third items, as well as all items drawn from the first, second, or third item. Furthermore, the term "may" as used herein includes all meanings and definitions of the word "may".

[0043] Unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which the example embodiments pertain. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having a meaning consistent with, for example, their meaning in the context of the relevant field, and should not be interpreted in an idealized or overly formal sense unless explicitly defined herein. For example, as one of ordinary skill in the art will understand, the terms “component” or “unit” can be applied to, for example, a single circuit or structure, an integrated circuit, a computational block of a circuit device, or any structure configured to perform the described functions.

[0044] In contrast, these embodiments may be provided to make this disclosure sufficiently thorough and complete to assist those skilled in the art in fully understanding its scope. Furthermore, this disclosure is limited only by the scope of the claims.

[0045] As will be fully understood by those skilled in the art, the features of the various embodiments of this disclosure may be joined or combined in part or in whole, and may interoperate and be technology-driven in various ways. Embodiments of this disclosure may be performed independently of each other, or may be performed together in an interdependent relationship.

[0046] In the following, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. For ease of description, the scale of each element shown in the drawings differs from the actual scale, and therefore the scope is not limited to the scale shown in the drawings.

[0047] Figure 1 This is a schematic illustration of a vibration device according to one embodiment of the present disclosure.

[0048] Reference Figure 1 According to one embodiment of the present disclosure, the vibration device 10 can be connected to the vibration member 20. For example, the vibration member 20 may include a first vibration member 21 and a second vibration member 22.

[0049] The first vibrating member 21 and the second vibrating member 22 may include any one of a diaphragm, a vibrating plate, a vibrating substrate, a vibrating panel, a sound plate, a passive vibrating plate, a passive vibrating member, a sound output plate, a sound vibrating plate, a display panel, a vehicle device, a flexible device, a bending device, a vehicle speaker member, and a directional speaker member. Since the first vibrating member 21 realizes the tactile sensation HA1, it may also include any one of a touch plate, a touch generating member, a touch panel, a vehicle touch panel, and a touch display panel. For example, the elastic modulus of the first vibrating member 21 and the second vibrating member 22 may be 1.0 GPa or greater.

[0050] According to one embodiment of this disclosure, the vibration device 10 may include a first vibration generating module 500 and a second vibration generating module 600. Each of the first vibration generating module 500 and the second vibration generating module 600 may be connected to the vibration member 20.

[0051] A first vibration generating module 500 can be connected to a first vibrating member 21. The first vibration generating module 500 can be disposed on a first surface (or upper surface) or a second surface (or lower surface) of the first vibrating member 21. The first vibration generating module 500 can be configured to vibrate the first vibrating member 21. The first vibrating member 21 can generate vibrations or output sound (or sound waves or sound pressure) according to the drive (or vibration) of the first vibration generating module 500. The first vibrating member 21 can have the same or larger size as the first vibration generating module 500. The first vibration generating module 500 can have a shape corresponding to or the same as the first vibrating member 21, but embodiments of this disclosure are not limited thereto.

[0052] The second vibration generating module 600 can be connected to the second vibration member 22. The second vibration generating module 600 can be disposed in a first surface (or upper surface) or a second surface (or lower surface) of the second vibration member 22. The second vibration generating module 600 can be configured to vibrate the second vibration member 22. The second vibration member 22 can generate vibrations or output sound (or sound waves or sound pressure) according to the drive (or vibration) of the second vibration generating module 600. The second vibration member 22 can have the same or larger size as the second vibration generating module 600. The second vibration generating module 600 can correspond to the second vibration member 22 or have the same shape as the second vibration member 22, but the embodiments of this disclosure are not limited thereto.

[0053] Each of the first vibration generating module 500 and the second vibration generating module 600 may include a piezoelectric material with piezoelectric properties. Each of the first vibration generating module 500 and the second vibration generating module 600 can cause the vibrating member 20 to vibrate (or displace or drive) based on the vibration (or drive) of the piezoelectric material according to an electrical signal (or voice signal or sound signal) applied to it. For example, each of the first vibration generating module 500 and the second vibration generating module 600 can vibrate (or displace or drive) by alternately and repeatedly contracting and / or expanding due to the piezoelectric effect (or piezoelectric properties). For example, each of the first vibration generating module 500 and the second vibration generating module 600 can vibrate (or displace or drive) in the vertical direction (or thickness direction) (Z) by alternately and repeatedly contracting and / or expanding due to the inverse piezoelectric effect.

[0054] Each of the first vibration generation module 500 and the second vibration generation module 600 may be made of a ceramic-based piezoelectric material capable of achieving relatively high vibration, or may be made of a piezoelectric ceramic having a perovskite-based crystal structure. For example, each of the first vibration generation module 500 and the second vibration generation module 600 may be a vibration generation device, a vibration membrane, a vibration generating membrane, a vibrator, an active vibrator, an active vibration generator, an actuator, an exciter, a membrane actuator, a membrane exciter, an ultrasonic actuator, or an active vibration component, but the embodiments of this disclosure are not limited thereto.

[0055] According to one embodiment of this disclosure, the first vibration generating module 500 and the second vibration generating module 600 may be configured to be spaced apart from each other by a predetermined distance. Each of the first vibration generating module 500 and the second vibration generating module 600 may include a plurality of vibrating portions 510 and 610 having a piezoelectric material. The first vibration generating module 500 may include a first vibrating portion 510 having a piezoelectric material. The second vibration generating module 600 may include a second vibrating portion 610 having a piezoelectric material.

[0056] Multiple vibration portions, or the first vibration portion 510 and the second vibration generation module 600, respectively configured in the first vibration generation module 500 and the second vibration generation module 600, can have different sizes. For example, the size of the first vibration portion 510 in the first vibration generation module 500 can be larger than the size of the second vibration portion 610 in the second vibration generation module 600. For example, as the size of the first vibration portion 510 increases, the acoustic characteristics and / or sound pressure characteristics can be improved, and low-frequency vibration can be achieved. For example, tactile sensation HA1 can be generated in the low-frequency region.

[0057] The first vibration generation module 500 can output a first sound based on a first sound signal. For example, the first sound signal may include an amplitude-modulated carrier signal, but the embodiments of this disclosure are not limited thereto. For example, the first sound signal can be generated by amplitude modulation of a driving information sound signal and a carrier signal corresponding to the driving information. For example, the first sound signal can be generated by amplitude modulation of a first carrier signal based on a driving information sound signal corresponding to the driving information. For example, the first carrier signal may be a low-frequency signal or a low-frequency carrier signal, but the embodiments of this disclosure are not limited thereto.

[0058] According to one embodiment of this disclosure, the first vibration generation module 500 can achieve low-frequency vibration in the range of 50 Hz to 500 Hz by including a first vibration portion 510 that is larger than the second vibration portion 610. For example, the first sound can be a low-frequency vibration in the range of 50 Hz to 500 Hz. For example, when the first vibration generation module 500 achieves low-frequency vibration, the first vibration generation module 500 can be a touch generation module, a touch vibration module, or a touch sound generation module that can generate vibration or sound through the user's direct touch.

[0059] According to one embodiment of this disclosure, the first vibration generation module 500 can generate tactile feedback HA1 when a user directly touches the first vibrating member 21. The tactile feedback HA1 allows the user to feel vibration by touching a touchscreen or touch panel as an input device. When the user touches the first vibrating member 21, a detection sensor can detect the touch signal. The sensed touch signal can be converted into a digital form and sent to the control system. The control system can analyze the received information and determine what type of tactile feedback to provide. Based on the determined tactile feedback, the first vibration generation module 500 can generate vibration. This processing is performed simultaneously when the user touches the first vibrating member 21, allowing the user to feel tactile feedback while touching the first vibrating member 21.

[0060] The second vibration generation module 600 can output a directional second sound based on a second sound signal different from the first sound signal. For example, the second sound signal may include an amplitude-modulated carrier signal, but embodiments of this disclosure are not limited thereto. For example, the second sound signal can be generated by amplitude modulation of a driving information sound signal and a carrier signal corresponding to the driving information. For example, the second sound signal can be generated by amplitude modulation of a second carrier signal based on a driving information sound signal corresponding to the driving information. For example, the second carrier signal may be an ultrasonic signal or an ultrasonic carrier signal, but embodiments of this disclosure are not limited thereto.

[0061] In the second vibration generation module 600, the second sound can achieve ultrasonic vibration in the range of 25 kHz to 60 kHz. For example, the second vibration generation module 600 can be a directional speaker that achieves ultrasonic vibration in the range of 25 kHz to 60 kHz. Therefore, the second sound of the second vibration generation module 600 is directional due to a carrier signal with a frequency of 25 kHz or higher, and can therefore be sent only to the user.

[0062] According to one embodiment of this disclosure, the second vibration portion 610 disposed in the second vibration generation module 600 may have a smaller size than the first vibration portion 510 disposed in the first vibration generation module 500. For example, the smaller the size of the second vibration portion 610, the better its directionality.

[0063] According to one embodiment of this disclosure, by configuring the sizes of the first vibration portion 510 and the second vibration portion 610 differently, the acoustic characteristics and / or sound pressure characteristics can be improved in the first vibration generation module 500, enabling tactile sensation, and the directionality of the vibration device 10 can be improved in the second vibration generation module 600.

[0064] According to one embodiment of the present disclosure, the vibration device 10 includes a first vibration generating module 500 and a second vibration generating module 600 having piezoelectric material, so as to prevent or minimize acoustic interference between multiple loudspeakers.

[0065] According to one embodiment of this disclosure, since the vibration device 10 can have improved acoustic characteristics and / or sound pressure characteristics, it can be driven with low power and has the effect of reducing power consumption.

[0066] According to embodiments of this specification, the vibration device 10 includes a first vibration generating module 500 and a second vibration generating module 600 having piezoelectric material, thereby simplifying the structure and making it easy to design.

[0067] Figure 2 This is an example Figure 1 A plan view of an example of the first vibration generation module is shown. Figure 3 It is along Figure 2 The diagram shows a cross-sectional view taken along line I-I'. It illustrates the reference... Figure 1 and Figure 2 The first vibration generation module described in the embodiments of this disclosure.

[0068] Reference Figures 1 to 3 According to one embodiment of the present disclosure, the first vibration generation module 500 may include a first vibration part 510, a support member 540, a flexible part 520, a cover member 560, and a signal cable 570.

[0069] The first vibration portion 510 can be configured to vibrate via the piezoelectric effect according to a driving signal. For example, the first vibration portion 510 may include a piezoelectric type vibration portion. The first vibration portion 510 may include at least one of piezoelectric inorganic materials and piezoelectric organic materials, but embodiments of this disclosure are not limited thereto.

[0070] The first vibration portion 510 may be disposed in the cover member 560. The first vibration portion 510 may be surrounded by the cover member 560. The first vibration portion 510 may include a plurality of first sub-vibration portions 511 disposed in the cover member 560.

[0071] The cover member 560 may include a first region A1 to a third region A3 of the same size. Each of the first region A1 to the third region A3 may be arranged parallel to each other in a second direction Y perpendicular to the first direction X. The first region A1 and the third region A3 may be spaced apart from each other and the second region A2 may be interposed therebetween.

[0072] Each of the plurality of first sub-vibration portions 511 can be respectively disposed in the first region A1 to the third region A3. Each of the plurality of first sub-vibration portions 511 can be disposed parallel to each other in the second direction Y, which is perpendicular to the first direction X. Each of the first sub-vibration portions 511 can be spaced apart from each other by a predetermined distance. The size of each of the plurality of first sub-vibration portions 511 can be smaller than the size of the first region A1 to the third region A3.

[0073] Each of the plurality of first sub-vibration portions 511 may have the same size. For example, each of the plurality of first sub-vibration portions 511 may have a square shape, but the embodiments of the present disclosure are not limited thereto. For example, the first width W1 of each of the plurality of first sub-vibration portions 511 may be 50 mm, but is not limited thereto. For example, the width, length and thickness of each of the plurality of first sub-vibration portions 511 may be 50 mm, 50 mm or 0.3 mm, but is not limited thereto.

[0074] According to one embodiment of this disclosure, the first vibration generation module 500 may include a plurality of first sub-vibration portions 511 that are relatively larger than the second vibration generation module 600. For example, the first vibration generation module 500 may realize low-frequency vibration in the range of 50 Hz to 500 Hz. For example, when realizing low-frequency vibration in the range of 50 Hz to 500 Hz, the first vibration generation module 500 may improve the acoustic and / or sound pressure characteristics of the vibration device 10, and may realize tactile feedback HA1 or generate a first tactile feedback HA1 when the user directly touches the first vibration member 21.

[0075] According to one embodiment of the present disclosure, the first sub-vibration portion 511 may include a vibration layer 511a, a first electrode layer 511b, and a second electrode layer 511c.

[0076] The vibration layer 511a may include a piezoelectric material or an electroactive material exhibiting a piezoelectric effect. For example, a piezoelectric material may have the characteristic that, while pressure or torsion is applied to the crystal structure by an external force, a potential difference is generated by dielectric polarization that changes according to the relative positions of positive (+) ions and negative (-) ions, and vibration is generated by an electric field based on the applied voltage. For example, the vibration layer 511a may be a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric composite material layer, a piezoelectric composite material, a piezoelectric ceramic composite material, etc., and the embodiments disclosed herein are not limited thereto.

[0077] The vibration layer 511a can be formed of a ceramic matrix material capable of achieving relatively high vibrations, or it can be formed of a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure exhibits piezoelectric and / or inverse piezoelectric effects and can be an oriented plate-like structure. The perovskite crystal structure is represented by the chemical formula ABO3, where site A can be formed of a divalent metal element and site B can be formed of a tetravalent metal element. In one embodiment of this disclosure, in the chemical formula ABO3, sites A and B can be cations, and site O can be an anion. For example, the vibration layer 511a can include at least one of PbTiO3, PbZrO3, PbZrTiO3, BaTiO3, and SrTiO3, but embodiments of this disclosure are not limited thereto.

[0078] Piezoelectric ceramics can be composed of single-crystal ceramics with a single-crystal structure or ceramic materials or polycrystalline ceramics with a polycrystalline structure. The piezoelectric material of single-crystal ceramics may include α-AlPO4, α-SiO2, LiNbO3, Tb2(MoO4)3, Li2B4O7, or ZnO, but the embodiments of this disclosure are not limited thereto. The piezoelectric material of polycrystalline ceramics may include lead zirconate titanate (PZT)-based materials containing lead (Pb), zirconium (Zr), and titanium (Ti), or lead zirconate nickel titanate (PZNN)-based materials containing lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but the embodiments of this disclosure are not limited thereto. For example, the resonant layer 511a may include at least one of CaTiO3, BaTiO3, and SrTiO3 that does not contain lead (Pb), but the embodiments of this disclosure are not limited thereto.

[0079] The first electrode layer 511b may be disposed on the first surface (or rear surface or lower surface) of the vibration layer 511a. For example, the first electrode layers 511b of adjacent first sub-vibration portions 511 may be electrically connected to each other. For example, the first electrode layer 511b may have a single electrode shape disposed on the entire first surface (or lower surface) of each of the vibration layers 511a, but embodiments of the present disclosure are not limited thereto.

[0080] The second electrode layer 511c may be disposed on the second surface (or front surface or upper surface) of the vibration layer 511a. The second electrode layer 511c may have the same size as the vibration layer 511a, or it may have a smaller size than the vibration layer 511a. For example, the second electrode layer 511c may have the same shape as the vibration layer 511a, but the embodiments of this disclosure are not limited thereto.

[0081] At least one of the first electrode layer 511b and the second electrode layer 511c according to one embodiment of the present disclosure may be formed of a transparent conductive material, a semi-transparent conductive material or an opaque conductive material.

[0082] The vibrating layer 511a can be polarized by applying a constant voltage to the first electrode layer 511b and the second electrode layer 511c in a constant temperature atmosphere or in a temperature atmosphere that changes from high temperature to room temperature, but the embodiments of this disclosure are not limited thereto.

[0083] The vibrating layer 511a can vibrate by alternating and / or expanding through the inverse piezoelectric effect using a driving signal applied externally to the first electrode layer 511b and the second electrode layer 511c. For example, the vibrating layer 511a can vibrate in the vertical direction (or thickness direction) and the planar direction using signals applied to the first electrode layer 511b and the second electrode layer 511c. The vibrating layer 511a can be displaced (or vibrated or driven) by contraction and / or expansion in the planar direction, thereby improving the vibration characteristics, including the acoustic characteristics and / or sound pressure characteristics of the first vibration generation module 500.

[0084] A support member 540 may be disposed between the cover member 560 and the vibrating portion 510. The support member 540 may also be disposed between the first cover member 561 and the first sub-vibrating portion 511. The thickness T1 of the support member 540 may be 0.5 to 2.0 times the thickness of the vibrating layer 511a, but embodiments of this disclosure are not limited thereto. For example, when the thickness of the support member 540 is less than 0.5 times the thickness of the vibrating layer 511a, the support member 540 may be damaged by the vibration of the vibrating layer 511a. For example, when the thickness of the support member 540 exceeds 2.0 times the thickness of the vibrating layer 511a, the vibration of the vibrating layer 511a may not be easily transmitted to the vibrating member 20.

[0085] Support member 540 may be connected to vibrating portion 510. Support member 540 may be connected to a first surface (or rear surface) of first sub-vibrating portion 511. Support member 540 may be disposed between cover member 560 and first sub-vibrating portion 511. Support member 540 may be disposed between first cover member 561 and first sub-vibrating portion 511. Support member 540 may be configured to convert an in-plane vibration mode (or first vibration mode) of first sub-vibrating portion 511 into an out-of-plane vibration mode (or second vibration mode). For example, support member 540 may comprise a metallic or plastic material.

[0086] The flexible portion 520 can be configured to surround the first sub-vibration portion 511. The flexible portion 520 can be configured among a plurality of first sub-vibration portions 511. The flexible portion 520 can be configured to surround the remaining surface of the first vibration portion 510 except for the upper surface and side surface of the second electrode layer 511c.

[0087] According to one embodiment of this disclosure, since the first vibration generating module 500 includes a flexible portion 520, the vibration energy of the first sub-vibration portion 511 can be increased, and thus the vibration characteristics can be enhanced, while ensuring piezoelectric properties and flexibility. For example, the flexible portion 520 can be one or more of epoxy-based polymers, acrylic-based polymers, and silicone-based polymers, but is not limited thereto.

[0088] For example, the flexible portion 520 may be formed of an organic material portion. For example, the organic material portion may absorb the impact applied to the inorganic material portion (or vibration layer) by being disposed between the vibration layers 511a composed of inorganic material portions. For example, the organic material portion may improve the durability of the first vibration portion 510 by releasing the stress concentrated on the inorganic material portion (or vibration layer) and may provide flexibility to the first vibration portion 510.

[0089] The vibration device 500 according to one embodiment of the present disclosure may further include a cover member 560. The cover member 560 may include a first cover member 561 and a second cover member 562.

[0090] A first cover member 561 may be disposed on a first surface (or lower surface) of the first vibrating portion 510. The first cover member 561 may be disposed on the first electrode layer 511b of the first sub-vibrating portion 511 and may be configured to cover the first electrode layer 511b. The first cover member 561 may be configured to cover the support member 540. For example, the first cover member 561 may be configured to have a larger size than the first vibrating portion 510 and the support member 540. The first cover member 561 may be configured to protect the first surface (or lower surface) of the vibrating portion 510 and the first electrode layer 511b.

[0091] The second cover member 562 may be disposed on the second surface (or upper surface) of the vibrating portion 510. The second cover member 562 may be disposed on the second electrode layer 511c of the first vibrating portion 510 and may be configured to cover the second electrode layer 511c of the first vibrating portion 510. For example, the second cover member 562 may be configured to have a larger size than the first vibrating portion 510, and may be configured to have the same size as the first cover member 561. The second cover member 562 may be configured to protect the second surface (or upper surface) and the second electrode layer 511c of the first vibrating portion 510.

[0092] The first cover member 561 may be connected or attached to the first surface of the first vibrating portion 510, the first surface of the support member 540, and / or the first surface of the flexible portion 520 via the first adhesive layer 563. For example, the first cover member 561 may be connected or attached to the first surface of the first vibrating portion 510, the first surface of the support member 540, and / or the first surface of the flexible portion 520 by a film lamination process using the first adhesive layer 563.

[0093] The second cover member 562 can be connected or coupled to the second surface of the first vibrating portion 510 or the second electrode layer 511c via the second adhesive layer 564. For example, the second cover member 562 can be connected or coupled to the second surface of the vibrating portion 510 or the second electrode layer 511c by a film lamination process using the second adhesive layer 564.

[0094] Each of the first adhesive layer 563 and the second adhesive layer 564 according to embodiments of the present disclosure may include an electrically insulating material that is compressible and recoverable while having adhesive properties. For example, each of the first adhesive layer 563 and the second adhesive layer 564 may include an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin, but embodiments of the present disclosure are not limited thereto.

[0095] The first adhesive layer 563 and the second adhesive layer 564 may be disposed between the first cover member 561 and the second cover member 562 to surround the first vibrating portion 510, the support member 540 and the flexible portion 520. For example, at least one of the first adhesive layer 563 and the second adhesive layer 564 may be configured to surround the first vibrating portion 510, the support member 540 and the flexible portion 520.

[0096] According to one embodiment of this disclosure, the first vibration generating module 500 may further include a signal cable 570. The signal cable 570 may include a first power line 571 and a second power line 572.

[0097] A first power line 571 may be disposed between the first vibrating portion 510 and the first cover member 561. The first power line 571 may be formed between the first electrode layer 511b and the first adhesive layer 563 of the first vibrating portion 510. For example, the first power line 571 may be electrically connected to the first electrode layer 511b of the first vibrating portion 510 via an anisotropic conductive film.

[0098] The second power line 572 can be disposed between the first vibrating portion 510 and the second cover member 562. The second power line 572 can be disposed between the second electrode layer 511c and the second adhesive layer 564 of the first sub-vibrating portion 511. The second power line 572 can be electrically connected to the second electrode layer 511c of the first sub-vibrating portion 511.

[0099] The signal cable 570 can be electrically connected to a pad portion disposed in the vibration device 10 or the first vibration generation module 500. The signal cable 570 can provide a vibration drive signal (or sound signal) from the sound processing circuit to the first vibration part 510. For example, the pad portion may include, but is not limited to, flexible printed circuit cables, flexible flat cables, single-sided flexible printed circuits, single-sided flexible printed circuit boards, flexible multilayer printed circuits, or flexible multilayer printed circuit boards.

[0100] Figure 4 This is an example Figure 1 A plan view of an example of the second vibration generation module shown. Figure 5 It is along Figure 4 The cross-sectional view taken by line II-II' is shown. This illustrates the reference. Figure 1 and Figure 2 The second vibration generation module described in one embodiment of this disclosure. The second vibration generation module according to one embodiment of this disclosure has the same characteristics as referenced... Figure 2 and Figure 3 The vibration components in the first vibration generation module are configured differently. Therefore, the vibration components and related structures will be described below, with identical structures being briefly described or omitted.

[0101] Reference Figure 1 , Figure 4 and Figure 5 The second vibration generation module 600 according to the embodiments of the present disclosure may include a second vibration part 610, a support member 640, a flexible part 620, a cover member 660, and a signal cable 670.

[0102] The second vibration part 610 includes a reference Figure 2 and Figure 3 The first vibrating part 510 described is made of the same material and may have the same structure except for size or area. Therefore, different configurations will be described below.

[0103] The second vibration portion 610 can be disposed in the cover member 660. The second vibration portion 610 may include a plurality of second sub-vibration portions 611 disposed in the cover member 660. Each of the plurality of second sub-vibration portions 611 may be disposed in each of the first region A1 to the third region A3 of the cover member 660. For example, a plurality of second sub-vibration portions 611 may be disposed in each of the first region A1 to the third region A3. For example, six to nine second sub-vibration portions 611 may be arranged parallel to each of the first region A1 to the third region A3.

[0104] Each of the plurality of second sub-vibration portions 611 may be arranged parallel to each other in a first direction X and a second direction Y perpendicular to the first direction X. The plurality of second sub-vibration portions 611 may also be arranged parallel to each other in the first direction X. Each of the plurality of second sub-vibration portions 611 may be arranged parallel to each other in the second direction Y perpendicular to the first direction X. Each of the plurality of second sub-vibration portions 611 may be spaced apart from each other by a predetermined distance.

[0105] Each of the plurality of second sub-vibrating portions 611 may have the same size. For example, each of the plurality of second sub-vibrating portions 611 may have a square shape, but the embodiments of the present disclosure are not limited thereto. For example, the second width W2 of each of the plurality of second sub-vibrating portions 611 may be 10 mm, but is not limited thereto. For example, the width, length and thickness of each of the plurality of second sub-vibrating portions 611 may be 10 mm, 10 mm or 0.3 mm, but is not limited thereto. For example, in the vibration device 10, the acoustic characteristics and / or sound pressure characteristics of the vibration device 10 may be improved as the size of the vibrating portion containing the piezoelectric material increases, and the smaller the size of the vibrating portion, the better the directionality.

[0106] Reference Figures 1 to 5 According to one embodiment of the present disclosure, the second vibration generating module 600 may include a plurality of second sub-vibration portions 611 that are relatively smaller than the first vibration generating module 500. For example, the size of the plurality of second sub-vibration portions 611 may be smaller than the size of the plurality of first sub-vibration portions 511. For example, the size of the plurality of first sub-vibration portions 511 may be larger than the size of the plurality of second sub-vibration portions 611.

[0107] According to one embodiment of this disclosure, the second vibration generation module 600 includes a plurality of second sub-vibration portions 611 having a size smaller than that of the first sub-vibration portion 511, thereby achieving ultrasonic vibration in the range of 25 kHz to 60 kHz. For example, the second vibration generation module 600 may be a directional speaker. For example, when the second vibration generation module 600 achieves ultrasonic vibration in the range of 25 kHz to 60 kHz, the second vibration generation module (600) is directional, so the vibration or sound can be transmitted only to the user.

[0108] According to one embodiment of the present disclosure, the second sub-vibration portion 611 may include a vibration layer 611a, a first electrode layer 611b, and a second electrode layer 611c. The structure of the vibration layer 611a, the first electrode layer 611b, and the second electrode layer 611c in the second sub-vibration portion 611 is similar to that of the reference numerals. Figure 2 and Figure 3 The structure of the first sub-vibration part 511 described is the same, therefore, it will be briefly described below.

[0109] The vibrating layer 611a may include a piezoelectric material or an electroactive material that includes a piezoelectric effect. A first electrode layer 611b may be disposed on a first surface (or rear surface or lower surface) of the vibrating layer 611a. For example, the first electrode layers 511b of adjacent second sub-vibrating portions 611 may be electrically connected. A second electrode layer 611c may be disposed on a second surface (or front surface or upper surface) of the vibrating layer 611a.

[0110] According to one embodiment of this disclosure, since the second sub-vibration portion 611 has a similarity to the reference... Figure 2 and Figure 3 The first sub-vibration portion 511 is described to have different sizes, therefore the vibration layer 511a of the first vibration generation module 500 and the vibration layer 611a of the second vibration generation module 600 can have different sizes. For example, the size of the vibration layer 511a of the first vibration generation module 500 can be larger than the size of the vibration layer 611a of the second vibration generation module 600.

[0111] Reference Figure 1 , Figure 4 and Figure 5 The support member 640 can be disposed between the cover member 660 and the vibrating portion 610. The support member 640 can be disposed between the first cover member 661 and the second sub-vibrating portion 611. The support member 640 can be disposed between the first cover member 661 and a plurality of second sub-vibrating portions 611. For example, a plurality of support members 640 can be disposed, but the embodiments of this disclosure are not limited thereto.

[0112] The flexible portion 620 can be configured to surround the second sub-vibration portion 611. The flexible portion 620 can be configured to cover the side surface of each of the plurality of second sub-vibration portions 611.

[0113] In a second vibration generation module 600 according to one embodiment of the present disclosure, the arrangement and reference of the cover member 660 and the signal cable 670 are as follows: Figure 2 and Figure 3 The configuration of the first vibration generation module 500 is the same as described, so its description is omitted.

[0114] According to one embodiment of this disclosure, since the vibration device 10 includes a second vibration generation module 600, the vibration device 10 is directional, thus having the effect that vibration or sound can be easily transmitted to the user.

[0115] Figure 6 This is a side view schematically illustrating another embodiment of the vibration device of this disclosure. Figure 7 This is an example Figure 6 A plan view of an example of the first vibration generation module is shown. Figure 8 It is along Figure 7 The cross-sectional view taken along line III-III' is shown. This illustrates a vibration device according to another embodiment of the present disclosure, which, apart from a structural change in the first vibration generating module, is similar to the reference. Figures 1 to 5 The vibration device described is the same as that according to one embodiment of this disclosure. Therefore, in the following, the first vibration generation module and its associated configuration will be described, and the same configurations will be briefly described or omitted.

[0116] Reference Figures 6 to 8 According to another embodiment of the present disclosure, the vibration device 10 can be connected to the vibration member 20. For example, the vibration member 20 may include a first vibration member 21 and a second vibration member 22.

[0117] According to another embodiment of this disclosure, the vibration device 10 may include a first vibration generating module 500 and a second vibration generating module 600. Each of the first vibration generating module 500 and the second vibration generating module 600 may be connected to the vibration member 20.

[0118] The first vibration generating module 500 and the second vibration generating module 600 can have different structures. For example, the plurality of vibration parts or the first vibration part 510 disposed in the first vibration generating module 500 can have different sizes and structures than the plurality of vibration parts or the second vibration part 610 disposed in the second vibration generating module 600.

[0119] According to another embodiment of this disclosure, the first vibration generating module 500 may include a first vibration portion 510, a support member 540, a flexible portion 520, a cover member 560, and a signal cable 570. In the first vibration generating module 500 according to another embodiment of this disclosure, the arrangement and reference of the cover member 660 and the signal cable 670 are... Figure 2 and Figure 3 The configuration of the first vibration generation module 500 is the same as that described below, so the first vibration part 510, the support member 540 and the flexible part 520 will be described below.

[0120] The first vibration portion 510 may include sub-vibration portions 511, 512, and 513 arranged in parallel. Each of the sub-vibration portions 511, 512, and 513 may be arranged parallel to each other in a second direction Y perpendicular to the first direction X. Sub-vibration portion 511 may be located in a first region A1 of the cover member 560. Sub-vibration portion 512 may be located in a second region A2 of the cover member 560. Sub-vibration portion 513 may be located in a third region A3 of the cover member 560.

[0121] The first vibration portion 510 may include a 1-1 sub-vibration portion 511 in the first region A1 of the cover member 560. The first vibration portion 510 may include a plurality of 1-2 sub-vibration portions 512 in the second region A2 of the cover member 560. Each of the plurality of 1-2 sub-vibration portions 512 may be arranged parallel to a first direction X and a second direction Y perpendicular to the first direction X. The first vibration portion 510 may include a 1-3 sub-vibration portion 513 in the third region A3 of the cover member 560.

[0122] Sub-vibrating portions 511, 512, and 513, from 1-1 to 1-3, can be spaced apart by a predetermined distance. Sub-vibrating portions 511 and 513 can have the same size. Sub-vibrating portions 511 and 512 can have different sizes. Sub-vibrating portion 512 can be smaller than sub-vibrating portion 511. A single sub-vibrating portion 512 can be smaller than a single sub-vibrating portion 511. For example, the length W2 of one side of sub-vibrating portion 512 can be smaller than the length W1 of one side of sub-vibrating portion 511. For example, the length W1 of one side of sub-vibrating portion 511 can be the same as the length W3 of one side of sub-vibrating portion 513. For example, increasing the size of the vibrating portion 510 can improve acoustic characteristics and / or sound pressure levels, while decreasing the size of the vibrating unit can improve directivity.

[0123] According to one embodiment of the present disclosure, the first vibration generation module 500 arranges 1-2 sub-vibration portions 512 of different sizes between 1-1 sub-vibration portions 511 and 1-3 sub-vibration portions 513, so that acoustic interference between multiple loudspeakers can be prevented or minimized, and the directivity, acoustic characteristics and / or sound pressure characteristics can be improved simultaneously.

[0124] According to another embodiment of this disclosure, each of the 1-1 sub-vibration portion 511 and the plurality of 1-2 sub-vibration portions 512 may include vibration layers 511a and 512a, first electrode layers 511b and 512b, and second electrode layers 511c and 512c. Since the structure of the 1-3 sub-vibration portion 513 is the same as that of the 1-1 sub-vibration portion 511, only the 1-1 sub-vibration portion 511 will be described below, and the structure of the 1-3 sub-vibration portion 513 will be omitted.

[0125] The size of the vibration layer 512a of the 1-2 sub-vibration portions 512 can be smaller than the size of the vibration layer 511a of the 1-1 sub-vibration portion 511. For example, the length of one side of the vibration layer 512a of the 1-2 sub-vibration portions 512 can be smaller than the length of one side of the vibration layer 511a of the 1-1 sub-vibration portion 511. For example, the length of one side of the vibration layer 512a of the 1-2 sub-vibration portions 512 can be in the range of 15% to 25% of the length of one side of the vibration layer 511a of the 1-1 sub-vibration portion 511, but the embodiments of this disclosure are not limited thereto.

[0126] The first electrode layers 511b and 512b can be disposed on the first surface (or rear surface or lower surface) of the vibration layers 511a and 512a. The second electrode layers 511c and 512c can be disposed on the second surface (or front surface or upper surface) of the vibration layers 511a and 512a.

[0127] A support member 540 may be disposed between the first cover member 561 and the 1-1 sub-vibration portion 511. A support member 540 may be disposed between the first cover member 561 and the 1-2 sub-vibration portion 512. A support member 540 may be disposed between the first cover member 561 and the 1-3 sub-vibration portion 513. The thickness of the support member 540 may be 0.5 to 2.0 times the thickness of the vibration layers 511a and 512a, but the embodiments of this disclosure are not limited thereto. For example, when the thickness of the support member 540 is less than 0.5 times the thickness of the vibration layers 511a and 512a, the support member 540 may be damaged by the vibration of the vibration layers 511a and 512a. For example, when the thickness of the support member 540 is greater than 2.0 times the thickness of the vibration layers 511a and 512a, the vibration of the vibration layers 511a and 512a may not be easily transmitted to the vibration member 20.

[0128] The support member 540 can be configured to support the first vibrating portion 510 and transmit the vibrations of the first vibrating portion 510 to the vibrating member 20. For example, the support member 540 can be connected to the first vibrating portion 510 to tune the resonant frequency of the vibration device 500 to the approximately 40 kHz frequency band. For example, in embodiments of this disclosure, the resonant frequency of the vibration device 500 can be reduced to the approximately 40 kHz frequency band by adjusting the material and thickness of the support member 540.

[0129] According to one embodiment of the present disclosure, the support member 540 may include a first support member 541 and a second support member 542.

[0130] The first support member 541 can transmit the vibration of the 1-1 sub-vibration part 511 to the vibration member 20. The first support member 541 can be configured to tune the resonant frequency of the 1-1 sub-vibration part 511 to a frequency band of approximately 40 kHz. The first support member 541 can be disposed between the cover member 560 and the 1-1 sub-vibration part 511. The first support member 541 can be configured to convert the in-plane vibration mode (or the first vibration mode) of the 1-1 sub-vibration part 511 into an out-of-plane vibration mode (or the second vibration mode).

[0131] The second support member 542 can transmit the vibration of the 1-2 sub-vibrating portions 512 to the vibrating member 20. The second support member 542 can be configured to tune the resonant frequency of the 1-2 sub-vibrating portions 512 to a frequency band of approximately 40 kHz. The second support member 542 can be disposed between the cover member 560 and the 1-2 sub-vibrating portions 512. The second support member 542 can be disposed between the first cover member 561 and the plurality of 1-2 sub-vibrating portions 512. The second support member 542 can be connected to each of the first surface (or rear surface) of the plurality of 1-2 sub-vibrating portions 512. For example, a plurality of second support members 542 can be provided, but embodiments of this disclosure are not limited thereto. For example, a plurality of second support members 542 can be connected to each of the plurality of 1-2 sub-vibrating portions 512.

[0132] According to one embodiment of this disclosure, the first support member 541 and the second support member 542 may comprise the same material. For example, the first support member 541 and the second support member 542 may comprise a metallic material or a plastic material.

[0133] According to one embodiment of this disclosure, the first support member 541 may have a size corresponding to the 1-1 sub-vibration portion 511, and may have a size corresponding to the 1-2 sub-vibration portion 512 of the second support member 542; however, the embodiments of this disclosure are not limited thereto. For example, the first support member 541 may have a first width W1 corresponding to the 1-1 sub-vibration portion 511. For example, the second support member 542 may have a second width W2 corresponding to the 1-2 sub-vibration portion 512 of the second support member 542. However, the embodiments of this disclosure are not limited thereto.

[0134] According to one embodiment of this disclosure, the thicknesses of the first support member 541 and the second support member 542 may be different from each other. For example, the thickness T1 of the first support member 541 may be less than the thickness T2 of the second support member 542, but the embodiments of this disclosure are not limited thereto. For example, the thickness T1 of the first support member 541 may be equal to or less than 60% of the thickness T2 of the second support member 542.

[0135] For example, when the sizes of the 1-1 sub-vibration section 511 and the 1-2 sub-vibration section 512 are different, the resonant frequencies of the ultrasonic waves output from each of the 1-1 sub-vibration section 511 and the 1-2 sub-vibration section 512 can also be different from each other.

[0136] According to one embodiment of the present disclosure, the vibration device 500 may be configured such that each of the first support member 541 and the second support member 542 comprises the same material and has a different thickness, so that the resonant frequencies of the ultrasonic waves output from each of the 1-1 sub-vibration section 511 and the 1-2 sub-vibration section 512 are set to a similar range (or 40 kHz to 43 kHz), but the embodiments of the present disclosure are not limited thereto.

[0137] Therefore, when the first vibration generating module 500 according to an embodiment of the present disclosure generates ultrasonic vibrations, the ultrasonic waves output from the 1-1 sub-vibration section 511 and the 1-2 sub-vibration section 512 can have similar resonant frequencies. For example, the resonant frequency of the 1-1 sub-vibration section 511 according to an embodiment of the present disclosure can be 42.9 kHz, and the resonant frequency of the 1-2 sub-vibration section 512 can be 42.5 kHz. Therefore, the first vibration generating module 500 according to an embodiment of the present disclosure can improve the acoustic and / or sound quality characteristics of the first vibration generating module 500 in the 1-1 sub-vibration section 511, and has the effect of improving the directionality of the first vibration generating module 500 in the 1-2 sub-vibration section 512. The 1-3 sub-vibration section 513 according to another embodiment of the present disclosure can have the same configuration and effects as the 1-1 sub-vibration section 511.

[0138] In addition, when the first vibration generation module 500 generates low-frequency vibration according to the embodiment of this disclosure, the low-frequency vibration can appear in the 1-1 sub-vibration portion 511 and the 1-3 sub-vibration portion 513, and the touch sensation HA1 can be realized through the 1-1 sub-vibration portion 511 and the 1-3 sub-vibration portion 513.

[0139] The flexible portion 520 can be configured to surround each of the 1-1 sub-vibration portions 511 to 1-3 sub-vibration portions 513. The flexible portion 520 can be configured between adjacent 1-1 sub-vibration portions 511 and 1-2 sub-vibration portions 512, and between adjacent 1-3 sub-vibration portions 513 and 1-2 sub-vibration portions 512. The flexible portion 520 can be configured between each of the plurality of 1-2 sub-vibration portions 512.

[0140] Another embodiment of this disclosure may include a second vibration generation module 600. The second vibration generation module 600 according to another embodiment of this disclosure has a reference... Figure 4 and Figure 6 The second vibration generation module 600 described has the same configuration. Therefore, in the following text, only the same configuration will be described and different structures will be omitted.

[0141] Reference Figures 4 to 8 In the second vibration generation module 600, the second vibration portion 610 may include a plurality of second sub-vibration portions 611 arranged in parallel. The second vibration portion 610 may include a plurality of second sub-vibration portions 611 arranged in a second direction Y that is parallel to and perpendicular to the first direction X. Each of the plurality of second sub-vibration portions 611 may be the same size.

[0142] According to another embodiment of this disclosure, the size of sub-vibration portion 511 1-1 may be larger than the size of each of the plurality of second sub-vibration portions 611. The size of sub-vibration portion 513 1-3 may be larger than the size of each of the plurality of second sub-vibration portions 611. The size of sub-vibration portion 512 1-2 may be the same as the size of each of the plurality of second sub-vibration portions 611.

[0143] According to another embodiment of this disclosure, a first vibration generating module 500 can output a first sound via a first sound signal. A second vibration generating module 600 can output a second sound via a second sound signal that is the same as or different from the first sound signal. For example, the first sound can be a low-frequency vibration in the range of 50 Hz to 500 Hz or an ultrasonic vibration in the range of 25 kHz to 60 kHz. For example, the second sound can be an ultrasonic vibration in the range of 25 kHz to 60 kHz.

[0144] According to another embodiment of this disclosure, the first vibration generation module 500 may include a 1-1 sub-vibration section 511 and a 1-3 sub-vibration section 513 greater than a 1-2 sub-vibration section 512. The 1-1 sub-vibration section 511 and the 1-3 sub-vibration section 513 may generate low-frequency vibrations in the range of 50 Hz to 500 Hz based on the first sound signal.

[0145] Therefore, when providing tactile feedback HA1, the first vibration generation module 500 can achieve low-frequency vibration in the range of 50 Hz to 500 Hz. For example, the first sound can be a low-frequency vibration in the range of 50 Hz to 500 Hz. For example, when the first vibration generation module 500 achieves low-frequency vibration in the range of 50 Hz to 500 Hz, the first vibration generation module 500 can achieve tactile feedback (HA1) generated when the user directly touches the first vibrating member 21.

[0146] According to another embodiment of this disclosure, the first vibration generation module 500 may include a 1-2 sub-vibration portion 512 having a size smaller than that of the 1-1 sub-vibration portion 511 and the 1-3 sub-vibration portion 513, and the second vibration generation module 600 may include a second sub-vibration portion 612 of the same size as the 1-2 sub-vibration portion 512. The 1-2 sub-vibration portion 512 can generate ultrasonic vibrations in the range of 25 kHz to 60 kHz based on a first sound signal. The second sub-vibration portion 612 can generate ultrasonic vibrations in the range of 25 kHz to 60 kHz based on a second sound signal. The 1-2 sub-vibration portion 512 of the first vibration generation module 500 and the second sub-vibration portion 611 of the second vibration generation module 600 can generate the same ultrasonic vibrations.

[0147] Therefore, the first vibration generation module 500 and the second vibration generation module 600 can realize either air haptic HA2 or second haptic HA2 between the first vibration generation module 500 and the second vibration generation module 600.

[0148] According to another embodiment of this disclosure, when the first vibration generating module 500 and the second vibration generating module 600 achieve ultrasonic vibration, an aerial tactile sensation HA2 can be realized between the first vibration generating module 500 and the second vibration generating module 600. For example, the first sound from the first vibration generating module 500 can achieve ultrasonic vibration in the range of 25 kHz to 60 kHz. For example, the second sound from the second vibration generating module 600 can achieve ultrasonic vibration in the range of 25 kHz to 60 kHz.

[0149] For example, the airborne haptic HA2 can be achieved by overlapping phase arrays, such as those configured in the first vibration generation module 500 and the second vibration generation module 600, of the first vibration portion 510 and the second vibration portion 610. For example, depending on the waveform, the overlap can be caused by constructive interference and destructive interference.

[0150] For example, when a user's hand or sensing signal is sensed between adjacent first and second vibration components 510 and 610, the sensed signal can be converted into digital form and sent to the control system. The control system can analyze the received information and determine which type of tactile feedback to provide. Based on the determined tactile feedback, the first vibration generation module 500 can output a first sound based on a first sound generation signal, and the second vibration generation module 600 can output a second sound based on a second sound generation signal. For example, the first and second sounds can output the same ultrasonic vibration. Therefore, each of the first and second vibration generation modules 500 can generate ultrasonic vibration or an ultrasonic carrier. For example, the ultrasonic waves generated from each of the first and second vibration generation modules 500 can travel through the air. In this case, there may be a sudden change in acoustic impedance, such as that of the user's hand, and vibration may occur. For example, the generated vibration can be used for tactile feedback in the air. This process can be performed simultaneously with the user or the user's hand entering a preset area between the first and second vibration components 21 and 22, and the user immediately feels the tactile feedback.

[0151] According to another embodiment of this disclosure, each of the first vibration generating module 500 and the second vibration generating module 600 can be configured to be spaced apart from each other by a predetermined distance. The first vibration generating module 500 and the second vibration generating module 600 can be set at a first angle θ. The second vibration generating module 600 can be configured to form a first angle θ with the upper surface of the first vibration generating module 500. For example, the first angle θ can be from 60° to 120°. For example, when the first angle θ is less than 60°, the distance between the first vibration generating module 500 and the second vibration generating module 600 is too close to achieve the air haptic sensation HA2 by the user's hand. For example, when the first angle θ exceeds 120°, the distance between the first vibration generating module 500 and the second vibration generating module 600 is too long to achieve the air haptic sensation HA2 by the user's hand.

[0152] According to another embodiment of this disclosure, by arranging the first vibration generation module 500 and the second vibration generation module 600 at a first angle θ, the second vibration generation module 600 can generate ultrasonic vibrations to generate tactile sensation via the hand of a user identified as a sensor. Therefore, a first tactile sensation (or physical tactile sensation) can be realized by the first vibration generation module 500. A second tactile sensation (or air tactile sensation) can be realized by the second vibration generation module 600.

[0153] According to another embodiment of this disclosure, by configuring the 1-1 sub-vibration portions 511 of the first vibration portion 510 and the second sub-vibration portions 611 of the second vibration portion 610 of different sizes, the acoustic and / or sound pressure characteristics can be improved in the first vibration generation module 500, the tactile sensation can be realized in the first vibration generation module 500, and the directionality of the vibration device 10 can be improved in the second vibration generation module 600.

[0154] According to another embodiment of this disclosure, by configuring the size of the 1-2 sub-vibration portions 512 of the first vibration portion 510 and the second sub-vibration portion 611 of the second vibration portion 610 to be the same, an ultrasonic-based aerial tactile sensation HA2 can be realized between the first vibration generation module 500 and the second vibration generation module 600.

[0155] According to another embodiment of this disclosure, the vibration device 10 includes a first vibration generating module 500 and a second vibration generating module 600 having piezoelectric material, so as to prevent or minimize acoustic interference between multiple loudspeakers.

[0156] According to another embodiment of this disclosure, since acoustic characteristics and / or sound pressure characteristics can be improved, the vibration device 10 can be driven with low power and has the effect of reducing power consumption.

[0157] According to another embodiment of this specification, the vibration device 10 includes a first vibration generating module 500 and a second vibration generating module 600 having piezoelectric material, thereby simplifying the structure and making it easy to design.

[0158] Figure 9 This is a schematic illustration of a side view of a vibration device according to another embodiment of the present disclosure. This is in reference to... Figures 6 to 8 A third vibration generation module is added to the embodiments described in this disclosure. Therefore, the third vibration generation module and its associated configuration will be described below, and the same configuration will be briefly described or omitted.

[0159] Reference Figure 9 According to another embodiment of the present disclosure, the vibration device 10 may further include a third vibration generation module 700. The third vibration generation module 700 may be a directional loudspeaker.

[0160] The third vibration generating module 700 can be spaced apart from the first vibration generating module 500 and the second vibration generating module 600. For example, the third vibration generating module 700 can be spaced apart from the upper end of the second vibration generating module 600 to minimize or reduce interference with the airborne haptic HA2 between the first vibration generating module 500 and the second vibration generating module 600. For example, the third vibration generating module 700 can be spaced apart from the upper surface of the first vibration generating module 500 by at least 10 mm (e.g., wavelength in the 40 kHz frequency band of air). Therefore, the third vibration generating module 700 can be directional and deliver an immersive experience to the user without affecting the airborne haptic HA2 between the first vibration generating module 500 and the second vibration generating module 600.

[0161] According to another embodiment of this disclosure, the third vibration generation module 700 can be configured to output a directional third sound by driving (vibrating or displacing) a third sound signal based on driving information. For example, the third sound signal may include an amplitude-modulated carrier signal, but embodiments of this disclosure are not limited thereto. For example, the third sound signal can be generated by amplitude modulation of a driving information sound signal and a carrier signal corresponding to the driving information. For example, the third sound signal can also be generated by amplitude modulation of a carrier signal based on a driving information sound signal corresponding to the driving information. For example, the carrier signal may be an ultrasonic signal or an ultrasonic carrier signal, but embodiments of this disclosure are not limited thereto. For example, the third sound signal or carrier signal may have a frequency of 25 kHz or higher, but embodiments of this disclosure are not limited thereto. For example, the third sound signal or ultrasonic carrier signal may have a frequency of 40 kHz or higher. The third sound according to one embodiment of this disclosure is directional due to the carrier signal having a frequency of 25 kHz or higher, and therefore the third sound can be sent only to the user.

[0162] According to another embodiment of this disclosure, the third vibration generation module 700 may have the same characteristics as the reference module. Figure 4 and Figure 5 The second vibration generation module 600 described has the same structure. Therefore, in the following text, it will be combined with Figure 4 and Figure 5 To describe different configurations.

[0163] Reference Figure 4 , Figure 5 and Figure 9The third vibration generation module 700 may have the same structure as the second vibration generation module 600. Therefore, the first vibration generation module 500 can output a first sound through a first sound signal, and the second vibration generation module 600 and the third vibration generation module 700 can output a second sound and a third sound according to sound signals different from the first sound signal.

[0164] According to another embodiment of this disclosure, the first vibration generation module 500 may include a larger vibration component than the second vibration generation module 600 and the third vibration generation module 700. Therefore, the first vibration generation module 500 can achieve low-frequency vibration in the range of 50 Hz to 500 Hz. For example, the first sound may be a low-frequency vibration in the range of 50 Hz to 500 Hz. For example, when the first vibration generation module 500 achieves low-frequency vibration, the first vibration generation module 500 may be a touch generation module, a touch vibration module, or a touch sound generation module capable of generating vibration or sound through direct user touch.

[0165] According to another embodiment of this disclosure, the second vibration generating module 600 and the third vibration generating module 700 may include a vibrating portion having a smaller size than the first vibration generating module 500. Therefore, each of the second vibration generating module 600 and the third vibration generating module 700 can achieve ultrasonic vibration in the range of 25 kHz to 60 kHz. For example, each of the second and third sounds can achieve ultrasonic vibration in the range of 25 kHz to 60 kHz. For example, each of the second vibration generating module 600 and the third vibration generating module 700 can be a directional loudspeaker that achieves ultrasonic vibration in the range of 25 kHz to 60 kHz. Therefore, since each of the second and third sounds is directional due to a carrier signal with a frequency of 25 kHz or higher, only the second and third sounds can be transmitted to the user.

[0166] According to another embodiment of this disclosure, the size of the vibration portion of the first vibration generating module 500 can be configured to be larger than the vibration portions of each of the second vibration generating module 600 and the third vibration generating module 700. Therefore, according to another embodiment of this disclosure, acoustic and / or sound pressure characteristics can be improved in the first vibration generating module 500, tactile sensation can be realized in the first vibration generating module 500, and the directionality of the vibration device 10 can be improved in the second vibration generating module 600 and the third vibration generating module 700.

[0167] According to another embodiment of this disclosure, the third vibration generation module 700 may have the same characteristics as the reference module. Figure 7 and Figure 8 The first vibration generation module 500 described has the same structure. Therefore, in the following text, refer to... Figure 7 and Figure 8 This section only explains the different structures.

[0168] Reference Figures 7 to 9 The third vibration generation module 700 can have the same structure as the first vibration generation module 500. Therefore, the third vibration generation module 700 can include sub-vibration portions having the same size as the 1-2 sub-vibration portions 512. Since the 1-2 sub-vibration portions 512 are smaller than the other sub-vibration portions, ultrasonic vibrations in the range of 25 kHz to 60 kHz can be achieved. For example, the 1-2 sub-vibration portions 512 can be directional.

[0169] According to another embodiment of this disclosure, the first vibration generation module 500 can output a first sound through a first sound signal. The second vibration generation module 600 can output a second sound through a second sound signal that is the same as or different from the first sound signal. The third vibration generation module 700 can output a third sound through a third sound signal that is the same as or different from the first sound signal. For example, the first sound can be a low-frequency vibration in the range of 50 Hz to 500 Hz or an ultrasonic vibration in the range of 25 kHz to 60 kHz. For example, the second sound can be an ultrasonic vibration in the range of 25 kHz to 60 kHz. For example, the third sound can be an ultrasonic vibration in the range of 25 kHz to 60 kHz.

[0170] According to another embodiment of this disclosure, since the third vibration generation module 700 includes a 1-1 sub-vibration portion 711 and a 1-2 sub-vibration portion 712 having a size smaller than the 1-3 sub-vibration portion 713, ultrasonic vibration in the range of 25 kHz to 60 kHz can be realized based on the third sound signal.

[0171] Therefore, the third vibration generation module 700 according to another embodiment of this disclosure can be a directional speaker capable of improving the directionality of the vibration device 10.

[0172] Figure 10 This is a diagram illustrating a vehicle device according to one embodiment of the present disclosure.

[0173] Reference Figure 10 According to one embodiment of the present disclosure, the vehicle device 30 may include a vehicle interior material 31 and a sound generating device 35. The vehicle interior material 31 can output sound based on the vibration of the sound generating device 35.

[0174] According to one embodiment of this disclosure, a sound generating device 35 may be disposed on the central panel 31B of a vehicle device 30. The sound generating device 35 may be disposed on the central instrument panel 31B extending from the instrument panel 31A to the center console 31C. For example, the sound generating device 35 may be disposed below a touchscreen panel and may be configured to output sound based on the vibration of the touchscreen panel by indirectly or directly vibrating the touchscreen panel. For example, the sound generating device 35 may be disposed below a display panel and may provide sound to the user based on the drive of the display panel. According to one embodiment of this disclosure, the sound generating device 35 includes a reference... Figures 1 to 9 The description refers to a vibrating device or a sound device, therefore repeated descriptions are omitted.

[0175] According to one embodiment of this disclosure, the sound generating device 35 may include a first sound generating module 35A and a second sound generating module 35B. For example, the first sound generating module 35A may output low-frequency vibrations in the range of 50 Hz to 500 Hz or ultrasonic vibrations in the range of 25 kHz to 60 kHz. For example, the second sound generating module 35B may output ultrasonic vibrations in the range of 25 kHz to 60 kHz. Each of the first sound generating module 35A and the second sound generating module 35B may be related to a reference... Figures 4 to 8 The first vibration generation module and the second vibration generation module described are the same sound generation module.

[0176] According to one embodiment of this disclosure, by different configurations of the sizes of some vibration units in each of the first sound generation module 35A and the second sound generation module 35B, the vehicle device 30 including the sound generation device 35 can improve the acoustic characteristics and / or sound pressure characteristics in the first sound generation module 35A, realize tactile sensation in the first sound generation module 35A, and improve the directionality of sound or vibration in the second sound generation module 35B.

[0177] According to one embodiment of this disclosure, by means of some of the sizes of the vibration portions configured in each of the first sound generation module 35A and the second sound generation module 35B in the same manner, the vehicle equipment 30 including the sound generation device 35 can realize aerial tactile sensation HA2 via ultrasonic waves between the first sound generation module 35A and the second sound generation module 35B.

[0178] According to one embodiment of the present disclosure, a vehicle device 30 including a sound generation device 35 can prevent or minimize acoustic interference between multiple speakers by including a first sound generation module 35A and a second sound generation module 35B having piezoelectric materials.

[0179] According to one embodiment of this disclosure, the vehicle device 30, which includes the sound generating device 35, can be driven at low power and has the effect of reducing power consumption because it can improve sound and / or sound pressure characteristics.

[0180] Vibration devices according to one or more embodiments of this disclosure can be applied to or included in vibration devices disposed in a apparatus. Apparatus according to one embodiment of this disclosure includes mobile devices, video phones, smartwatches, watch phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, bending devices, sliding devices, variable devices, e-magazines, 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 display devices, TVs, wallpaper display devices, signage devices, game consoles, laptop computers, monitors, cameras, camcorders, and home appliances, etc. Furthermore, vibration devices according to one or more embodiments of this disclosure can be applied to or included in organic light-emitting lighting devices or inorganic light-emitting lighting devices. When a vibration device is applied to or included in a lighting device, the lighting device can function as both lighting and a speaker. Furthermore, when a vibration device according to one or more embodiments of the present disclosure is applied to or included in a mobile device or the like, the vibration device may be one or more of a speaker, a receiver, and a tactile device, but the embodiments of the present disclosure are not limited thereto.

[0181] It will be apparent to those skilled in the art that various modifications and variations can be made to this disclosure without departing from the technical concept or scope thereof. Therefore, this disclosure is intended to cover such modifications and variations as long as they are within the scope of the claims and their equivalents.

[0182] Cross-reference to related applications

[0183] This application claims the benefit and priority of Korean Patent Application No. 10-2024-0199361, filed on December 27, 2024, the entire contents of which are incorporated herein by reference for all purposes as if fully set forth herein.

Claims

1. A vibration device, the vibration device comprising: A first vibration generation module, the first vibration generation module having a first vibration part; as well as A second vibration generation module is spaced apart from the first vibration generation module, and the second vibration generation module has a second vibration part that is different from the first vibration part.

2. The vibration device according to claim 1, wherein, The first vibrating part and the second vibrating part have different sizes.

3. The vibration device according to claim 1, wherein, The first vibration part includes a plurality of first sub-vibration parts arranged in parallel, and Each of the plurality of first sub-vibrational parts has the same size.

4. The vibration device according to claim 3, wherein, The second vibration part includes a plurality of second sub-vibration parts arranged in parallel, and Each of the plurality of second sub-vibrational parts has the same size.

5. The vibration device according to claim 4, wherein, The size of the plurality of first sub-vibration parts is greater than the size of the plurality of second sub-vibration parts.

6. The vibration device according to claim 1, wherein, Each of the first vibration portion and the second vibration portion includes: A vibrating layer, wherein the vibrating layer comprises a piezoelectric material; A first electrode layer, the first electrode layer being located on a first surface of the vibration layer; and The second electrode layer is located on a second surface of the vibration layer that is different from the first surface. The vibration layer of the first vibration part and the vibration layer of the second vibration part have different sizes.

7. The vibration device according to claim 1, wherein, The first vibration generation module outputs a first sound through a first sound signal; and The second vibration generation module outputs a second sound through a second sound signal that is different from the first sound signal.

8. The vibration device according to claim 7, wherein, The first sound is a low-frequency vibration in the range of 50 Hz to 500 Hz; and The second sound is an ultrasonic vibration in the range of 25 kHz to 60 kHz.

9. The vibration device according to claim 1, wherein, The first vibration section includes three sub-vibration sections arranged in parallel: 1-1 sub-vibration section, 1-2 sub-vibration section, and 1-3 sub-vibration section. The size of the 1-1 sub-vibration part is the same as the size of the 1-3 sub-vibration part, and the size of the 1-1 sub-vibration part is different from the size of the 1-2 sub-vibration part.

10. The vibration device according to claim 9, wherein, The second vibration part includes a plurality of second sub-vibration parts arranged in parallel, and Each of the plurality of second sub-vibrational parts has the same size.

11. The vibration device according to claim 10, wherein, The size of the 1-1 sub-vibration part is greater than the size of each of the plurality of second sub-vibration parts; and The size of the 1-2 sub-vibration parts is the same as the size of each of the plurality of second sub-vibration parts.

12. The vibration device according to claim 1, wherein, The second vibration generating module is configured to form a first angle with the upper surface of the first vibration generating module; and The first angle is between 60° and 120°.

13. The vibration device according to claim 1, wherein, The first vibration generation module outputs a first sound through a first sound signal; and The second vibration generation module outputs a second sound through a second sound signal that is the same as or different from the first sound signal.

14. The vibration device according to claim 13, wherein, The first sound is a low-frequency vibration in the range of 50 Hz to 500 Hz or an ultrasonic vibration in the range of 25 kHz to 60 kHz; and The second sound is an ultrasonic vibration in the range of 25 kHz to 60 kHz.

15. The vibration device according to claim 1, further comprising a third vibration generating module spaced apart from the first vibration generating module and the second vibration generating module; and in, The third vibration generation module has the same structure as the second vibration generation module.

16. The vibration device according to claim 15, wherein, The first vibration generation module outputs a first sound through a first sound signal; The second vibration generation module outputs a second sound through a second sound signal that is different from the first sound signal; and The third vibration generation module outputs a third sound through a third sound signal that is different from the first sound signal.

17. The vibration device according to claim 16, wherein, The first sound is a low-frequency vibration in the range of 50 Hz to 500 Hz or an ultrasonic vibration in the range of 25 kHz to 60 kHz; and The second and third sounds are ultrasonic vibrations in the range of 25 kHz to 60 kHz.

18. The vibration device according to claim 9, further comprising a third vibration generating module spaced apart from the first vibration generating module and the second vibration generating module; and in, The third vibration generation module has the same structure as the first vibration generation module.

19. A vehicle device, the vehicle device comprising: A vibrating component, the vibrating component being exposed to the indoor space; as well as A sound generating device that outputs sound to the indoor space. The sound generating device includes a vibration device according to any one of claims 1 to 18.

20. The vehicle equipment according to claim 19, wherein, The vibrating component includes any one of the following: diaphragm, vibrating plate, vibrating substrate, vibrating panel, sound plate, sound panel, passive vibrating plate, passive vibrating component, passive vibrating panel, sound output plate, sound vibrating plate, display panel, vehicle display panel, vehicle device, flexible device, bending device, touch panel, and vehicle touch panel.

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