Vibration device and vibration generating device

Abstract

To provide a vibration apparatus and a vibration generating apparatus that are able to simplify a structure and a production process.SOLUTION: A vibration apparatus 1 has: a vibration unit 10; and a signal cable 90 including a film member 91 including at least one signal line 92 connected with the vibration unit 10, and an adhesive member adjacent to the film member 91 and the vibration unit 10 with the at least one signal line 92 interposed therebetween.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] This specification relates to a vibration device and a vibration generating device.

Background Art

[0002] Recently, there has been an increasing demand for slimming and thinning of electronic devices. Speakers applied to electronic devices and the like are attracting attention for a piezoelectric element method that can be embodied in a thin thickness instead of a voice coil method in response to the demand for slimming and thinning.

[0003] A speaker or a vibration device applying a piezoelectric element can be driven or vibrated by receiving a driving power source or a driving signal from a signal cable.

[0004] A vibration device (or a film actuator) is composed of a piezoelectric element and a film having electrodes, and the signal cable can be composed of a film having a wiring and a pad electrode for applying a driving power source to the electrodes of the piezoelectric element. The vibration device and the signal cable can be electrically connected through a process such as soldering between the electrodes of the vibration device and the pad electrodes of the signal cable.

Summary of the Invention

Problems to be Solved by the Invention

[0005] The inventors of this specification have conducted various researches and experiments to embody a vibration device whose structure and manufacturing process can be simplified. Through various researches and experiments, the inventors of this specification have invented a vibration device with a new structure and a vibration generating device including the same, which can simplify the structure and manufacturing process of the vibration device.

[0006] The problem to be solved by the embodiments of this specification is to provide a vibration device and a vibration generating device including the same, which can simplify the structure and manufacturing process of the vibration device.

[0007] The problem to be solved by the embodiments of this specification is to provide a vibration device capable of improving the contact reliability between the vibration device and the signal cable, and a vibration generating device including the same.

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

Means for Solving the Problems

[0009] The vibration device according to the embodiments of this specification can include a vibration part, a film member including at least one signal line connected to the vibration part, and an adhesive member adjacent to the film member and the vibration part with at least one signal line sandwiched therebetween.

[0010] The vibration generating device according to the embodiments of this specification can include a manual vibration member and a vibration device connected to the manual vibration member for vibrating the manual vibration member. The vibration generating device can include a vibration device including a vibration part, a film member including at least one signal line connected to the vibration part, and an adhesive member adjacent to the film member and the vibration part with at least one signal line sandwiched therebetween. Specific matters of other embodiments are included in the detailed description and the drawings.

Effects of the Invention

[0011] According to the embodiments of this specification, it is possible to provide a vibration device capable of simplifying the structure and manufacturing process of the vibration device, and a vibration generating device including the same.

[0012] According to the embodiments of this specification, it is possible to provide a vibration device capable of improving the contact reliability between the vibration device and the signal cable, and a vibration generating device including the same.

[0013] According to the embodiments of this specification, since the structure and manufacturing process of the vibration device can be simplified, a vibration device capable of reducing production energy and a vibration generating device including the same can be provided.

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

[0015] Since the content of the invention described in the above problems to be solved, problem-solving means, and effects does not specify the essential features of the claims, the scope of rights of the claims is not limited by the matters described in the content of the invention.

Brief Description of the Drawings

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Mode for Carrying Out the Invention

[0017] The advantages, features, and methods for achieving them of the present specification will become apparent with reference to various examples described in detail hereinafter based on the accompanying drawings. However, the present specification is not limited to an example disclosed below, and can be embodied in various different forms. Examples such as those in the present specification are only to complete the disclosure of the present specification, and are provided to fully inform those having ordinary knowledge in the technical field to which the technical idea of the present specification belongs of the scope of the technical idea. The technical idea of the present specification is only defined by the scope of the claims.

[0018] The shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining the embodiments of the present specification are exemplary, so the present specification is not limited to the matters illustrated. The same reference numerals throughout the specification indicate the same components. Also, in the description of the present specification, when it is determined that a specific description of related known technologies may unnecessarily obscure the gist of the present specification, the detailed description thereof is omitted.

[0019] When using terms such as "including", "having", "becoming", etc. mentioned in the present specification, other parts can be added unless "only" is used. When a component is expressed in the singular, it includes the case of including a plurality unless otherwise explicitly stated.

[0020] In the interpretation of components, even if there is no separate explicit description regarding the error range, it is interpreted as including the error range.

[0021] In the case of an explanation of the positional relationship, for example, "on ~", "above ~", "below ~" When explaining the positional relationship between two parts, such as "next to ~", unless "immediately" or "directly" is used, one or more other parts can be located between the two parts.

[0022] In the case of an explanation regarding the relationship of time, for example, when explaining the chronological relationship such as "after ~", "subsequent to ~", "next to ~", "before ~", etc., unless "immediately" or "directly" is used, it can include cases where it is not continuous.

[0023] The first, second, etc. are used to describe various components, but these components are not limited to these terms. These terms are only used to distinguish one component from other components. Therefore, the first component mentioned below may also be the second component within the technical idea of this specification.

[0024] In the description of the components of this specification, terms such as the first, second, A, B, (a), (b), etc. can be used. Such terms are only for distinguishing the component from other components, and the essence, order, sequence, or number, etc. of the component are not limited by such terms.

[0025] When it is described that a certain component is "connected", "coupled", or "joined" to another component, it should be understood that the component can be directly connected to the other component or can be connected, but unless there is a specific explicit description, other components can also be [interposed] between the components that can be indirectly connected or can be connected.

[0026] The term "at least one" should be understood to include all combinations of one or more. For example, the meaning of "at least one of the first, second, and third components" can be said to include not only each of the first, second, or third alone, but also all combinations of two or more of the first, second, and third.

[0027] In this specification, the "device" can include a display panel and a liquid crystal module (LCM), an organic light-emitting module (OLED Module), a quantum dot module (Quantum Dot Module), etc., which are narrow-sense display devices for driving the display panel. And it can also include an equipment display apparatus such as a notebook computer, a television, a computer monitor, an automotive display apparatus or other forms of vehicles, etc., which are complete products (complete product or final product) including LCM, OLED module, etc., and a set electronic apparatus or a set device (set device or set apparatus) such as a mobile electronic apparatus such as a smartphone or an electronic pad.

[0028] Therefore, the device in this specification can include the narrow-sense display device itself such as LCM, OLED module, and QD module, and also include the set device which is an application product or a final consumer device including LCM, OLED module, and QD module.

[0029] In some cases, the LCM, OLED module, and QD module composed of a display panel, a driving part, etc. can be expressed as a narrow-sense "display device", and the electronic device as a complete product including the LCM, OLED module, and QD module can be distinguished and expressed as a "set device". For example, the narrow-sense display device includes a liquid crystal (LCD), organic light-emitting (OLED) or quantum dot (Quantum Dot) display panel and a source PCB which is a control part for driving the display panel, and the set device can further include a set PCB which is a set control part electrically connected to the source PCB to control the whole set device.

[0030] The display panels used in the embodiments of this specification can be any form of display panel, such as a liquid crystal display panel, an organic light emitting diode (OLED) display panel, a quantum dot (QD) display panel, and an electroluminescent display panel. The display panel of this embodiment is not limited to a specific display panel that can perform bezel bending with a flexible substrate for an organic light emitting diode (OLED) display panel and / or a lower backplate support structure. For example, the display panel may have a bezel that is not bent with respect to the lower backplate and / or the flexible substrate, and / or may be a rigid or flexible display panel. And it is not limited to the form and size of the display panel used in the display device according to the embodiments of this specification.

[0031] For example, when the display panel is an organic light emitting diode (OLED) display panel, it can include a number of gate lines and data lines, and pixels formed in the intersection regions of the gate lines and / or the data lines. And it can include an array including thin film transistors which are elements for selectively applying a voltage to each pixel, a light emitting element layer on the array, a sealing substrate or a sealing layer (Encapsulation) arranged on the array so as to cover the light emitting element layer, etc. The sealing layer can protect the thin film transistors and the light emitting element layer, etc. from external impacts, and prevent moisture and oxygen from penetrating into the light emitting element layer. And the layer formed on the array can include an inorganic light emitting layer, for example, a nano-sized material layer, or a quantum dot, etc.

[0032] The features of many embodiments of this specification can be partially or wholly combined or combined with each other, enabling various technical linkages and drives. Each embodiment can be implemented independently of the others or implemented together in an associated relationship.

[0033] Hereinafter, embodiments of this specification will be described based on the accompanying drawings and examples. Since the scale of the components shown in the drawings has a scale different from the actual one for the convenience of explanation, it is not limited to the scale shown in the drawings.

[0034] FIG. 1 is a diagram showing a vibration device according to the first embodiment of this specification. FIG. 2 is a cross-sectional view of FIG. 1 taken along line A-A' according to the first embodiment of this specification. FIG. 3 is a cross-sectional view of FIG. 1 taken along line B-B' according to the first embodiment of this specification. FIGS. 4a and 4b are cross-sectional views of FIG. 1 taken along line C-C' according to the first embodiment of this specification.

[0035] Referring to FIGS. 1 to 4b, the vibration device 1 according to the first embodiment of this specification can include a vibration part 10.

[0036] The vibration part 10 can include a vibration layer 11, a first electrode layer 13, and a second electrode layer 15.

[0037] The vibration layer 11 can include a piezoelectric material or an electroactive material that can generate a piezoelectric effect. For example, in a piezoelectric material, when a pressure or torsion phenomenon acts on the crystal structure of the piezoelectric material by an external force, a potential difference is generated due to dielectric polarization caused by a relative positional change between positive (+) ions and negative (-) ions, and / or vibration can be generated by an electric field due to a voltage applied to the crystal structure of the piezoelectric material. However, the embodiments of this specification are not limited thereto. The vibration layer 11 can be composed of a ceramic-based material capable of realizing relatively strong vibration (vibration frequency) or a piezoelectric ceramic having a perovskite crystal structure. For example, the vibration layer 11 can be expressed by other terms such as a piezoelectric layer, a piezoelectric material layer, an electroactive layer, a piezoelectric material part, an electroactive part, a piezoelectric structure, a piezoelectric composite layer, a piezoelectric composite, or a piezoelectric ceramic composite. However, the embodiments of this specification are not limited thereto.

[0038] The vibration layer 11 can be composed of a ceramic-based material capable of realizing relatively strong vibration or a piezoelectric ceramic having a perovskite crystal structure. The perovskite crystal structure can have a piezoelectric and / or inverse piezoelectric effect and can be a structure having orientation. The perovskite crystal structure can be expressed by the chemical formula ABO 3 . The A site can consist of a divalent metal element, and the B site can consist of a tetravalent metal element. As an embodiment of this specification, in the chemical formula ABO 3 , the A site and the B site can be cations, and O can be an anion. For example, the chemical formula ABO 3 can include at least one or more of PbTiO 3 , PbZrO 3 , PbZrTiO 3 , BaTiO 3 , and SrTiO 3 . However, the embodiments of this specification are not limited thereto.

[0039] The perovskite crystal structure can, by an external stress or magnetic field, cause a central ion, for example, PbTiO 3In this case, the position of Ti ions fluctuates, the polarization changes, and the piezoelectric effect can be generated. For example, the perovskite crystal structure can generate the piezoelectric effect by changing from a cubic shape, which is a symmetric structure, to a tetragonal, orthorhombic, or rhombohedral shape, which are asymmetric structures, due to an external stress or magnetic field. The tetragonal and rhombohedral crystal phase boundary regions (Morphotropic Phase Boundary) with asymmetric structures have high polarization and easy rearrangement of polarization, so they can have high piezoelectric properties.

[0040] The vibration layer 11 according to other embodiments of the present specification can include one or more of lead (Pb), zirconium (Zr), titanium (Ti), zinc (Zn), nickel (Ni), and niobium (Nb), but the embodiments of the present specification are not limited thereto.

[0041] The vibration layer 11 according to other embodiments of the present specification can include a PZT (lead zirconate titanate) - based material containing lead (Pb), zirconium (Zr), and titanium (Ti), or a PZNN (lead zirconate nickel niobate) - based material containing lead (Pb), zirconium (Zr), nickel (Ni), and niobium (Nb), but the embodiments of the present specification are not limited thereto. Alternatively, the vibration layer 11 can include at least one of CaTiO 3 , BaTiO 3 , and SrTiO 3 , but the embodiments of the present specification are not limited thereto.

[0042] The first electrode layer 13 can be disposed on the first surface (or upper surface) of the vibrating layer 11. The first electrode layer 13 can have the same size as the vibrating layer 11, or a size larger or smaller than the vibrating layer 11. For example, the first electrode layer 13 can be formed over the entire remaining first surface excluding the edge portion of the vibrating layer 11. For example, the first electrode layer 13 can have the same (substantially) shape as the vibrating layer 11, but the embodiments of the present specification are not limited thereto.

[0043] The second electrode layer 15 can be disposed on a second surface (or lower surface) different from or opposite to the first surface of the vibrating layer 11. The second electrode layer 15 can have the same size as the vibrating layer 11, or a size larger or smaller than the vibrating layer 11. For example, the second electrode layer 15 can be formed over the entire remaining second surface excluding the edge portion of the vibrating layer 11. For example, the second electrode layer 15 can have the same (substantially) shape as the vibrating layer 11, but the embodiments of the present specification are not limited thereto.

[0044] At least one of the first electrode layer 13 and the second electrode layer 15 according to the embodiments of the present specification may contain carbon, but the embodiments of the present specification are not limited thereto. For example, one or more of the first electrode layer 13 and the second electrode layer 15 may be made of a transparent conductive material, a translucent conductive material, or an opaque conductive material. For example, the transparent or translucent conductive material may include ITO (indium tin oxide) or IZO (indium zinc oxide), but the embodiments of the present specification are not limited thereto. The opaque conductive material may include or consist of alloys of silver (Ag) containing gold (Au), silver (Ag), platinum (Pt), palladium (Pd), molybdenum (Mo), magnesium (Mg), carbon, or silver (Ag) containing glass frit, but the embodiments of the present specification are not limited thereto. For example, carbon may be a carbon material including carbon black, ketjen black, carbon nanotubes, and graphite, but the embodiments of the present specification are not limited thereto. According to other embodiments of the present specification, each of the first electrode layer 13 and the second electrode layer 15 may contain silver (Ag) with a low specific resistance so as to improve the electrical characteristics and / or vibration characteristics of the vibration layer 11.

[0045] The vibration device 1 or the vibration unit 10 according to the embodiments of the present specification may further include a first cover member 30.

[0046] The first cover member 30 may be disposed on the first surface (or the upper surface) of the vibration unit 10. For example, the first cover member 30 may be configured to cover or protect the first surface of the vibration unit 10. For example, in the vibration unit 10, the first surface may be the upper surface, the uppermost surface, the front surface, or the front portion, but the embodiments of the present specification are not limited thereto. For example, the first cover member 30 may be configured to cover the first electrode layer 13 of the vibration unit 10. Therefore, the first cover member 30 can protect the first surface and the first electrode layer 13 of the vibration unit 10 from external impacts such as dropping the device or an external force applied to the device by the user.

[0047] According to an embodiment of the present specification, the first cover member 30 can be connected or coupled to the first surface of the vibrating portion 10 via the adhesive layer 40. For example, the first cover member 30 can be connected or coupled to the first surface or the first electrode layer 13 of the vibrating portion 10 via the first adhesive layer 41 of the adhesive layer 40. For example, the first cover member 30 can be connected or coupled to at least a part of the first surface or the first electrode layer 13 of the vibrating portion 10 by a film laminating process mediated by the first adhesive layer 41.

[0048] The first cover member 30 according to another embodiment of the present specification can include an adhesive member. In this case, according to the embodiment, the first adhesive layer 41 can be omitted. For example, the first cover member 30 can include a base cover member and an adhesive member provided on the base cover member and connected or coupled to the first surface or the first electrode layer 13 of the vibrating portion 10. For example, the adhesive member can include an electrically insulating material having adhesiveness and / or capable of compression and / or restoration.

[0049] The vibration device 1 or the vibrating portion 10 according to an embodiment of the present specification can further include a second cover member 50.

[0050] The second cover member 50 can be disposed on the second surface (or lower surface) of the vibrating portion 10. For example, the second cover member 50 can be configured to cover or protect the second surface of the vibrating portion 10. For example, in the vibrating portion 10, the second surface can be the lower surface, the lowermost surface, the back surface, or the back portion, but the embodiments of the present specification are not limited thereto. For example, the second cover member 50 can be configured to cover the second electrode layer 15 of the vibrating portion 10. Thus, the second cover member 50 can protect the second surface and the second electrode layer 15 of the vibrating portion 10.

[0051] According to an embodiment of the present specification, the second cover member 50 can be connected or coupled to the second surface of the vibrating portion 10 via the adhesive layer 40. For example, the second cover member 50 can be connected or coupled to the second surface or the second electrode layer 15 of the vibrating portion 10 via the second adhesive layer 42 of the adhesive layer 40. For example, the second cover member 50 can be connected or coupled to at least a part of the second surface or the second electrode layer 15 of the vibrating portion 10 by a film laminating process mediated by the second adhesive layer 42.

[0052] The second cover member 50 according to another embodiment of the present specification can include an adhesive member. In this case, according to the embodiment, the second adhesive layer 42 can be omitted. For example, the second cover member 50 can include a base cover member and an adhesive member provided on the base cover member and connected or coupled to the second surface or the second electrode layer 15 of the vibrating portion 10. For example, the adhesive member can include an electrically insulating material having adhesiveness and / or capable of compression and / or restoration.

[0053] Each of the first cover member 30 and the second cover member 50 according to the embodiments of the present specification can include one or more materials among plastic, fiber, fabric, paper, leather, carbon, and wood, but the embodiments of the present specification are not limited thereto. For example, each of the first cover member 30 and the second cover member 50 can include the same or different materials from each other. For example, each of the first cover member 30 and the second cover member 50 can be a polyimide film, a polyethylene terephthalate film, or a polyethylene naphthalate, etc., but the embodiments of the present specification are not limited thereto.

[0054] The first adhesive layer 41, the second adhesive layer 42, or the adhesive layer 40 according to the embodiments of the present specification can include an electrically insulating material having adhesiveness and / or capable of compression and / or restoration. For example, the first adhesive layer 41, the second adhesive layer 42, or the adhesive layer 40 can include an epoxy resin, an acrylic resin, a silicone resin, a urethane resin, an acrylic polymer, a silicone polymer, or a urethane polymer, but the embodiments of the present specification are not limited thereto. For example, the first adhesive layer 41 and the second adhesive layer 42 can include a Pressure Sensitive Adhesive (PSA), a thermosetting adhesive, a thermoplastic adhesive, or a thermal bonding adhesive (or hot melt adhesive), but the embodiments of the present specification are not limited thereto. For example, the first adhesive layer 41 and the second adhesive layer 42 can include a thermosetting adhesive or a thermal bonding adhesive. The thermal bonding adhesive can be a heat-activated type or a thermosetting type. For example, the thermosetting adhesive can be applied to the automotive application field that can utilize the advantage of being resistant to moisture damage caused by high temperature and / or high humidity. For example, the first adhesive layer 41, the second adhesive layer 42, or the adhesive layer 40 can be configured to surround or completely surround at least a part of the vibration unit 10. The first adhesive layer 41, the second adhesive layer 42, or the adhesive layer 40 can be configured to cover the entire surface of the vibration unit 10 or surround at least a part thereof. For example, the vibration unit 10 can be inserted (or accommodated) into or embedded in the adhesive layer 40.

[0055] Referring to FIG. 4a, the vibration device 1 or the vibration unit 10 according to an embodiment of the present specification may include a first cover member 30 and a second cover member 50. For example, the vibration unit 10 may be disposed between the first cover member 30 and the second cover member 50. For example, the first surface (or the first electrode layer 13) of the vibration unit 10 may be covered or protected by the first cover member 30, and the second surface (or the second electrode layer 15) of the vibration unit 10 may be covered or protected by the second cover member 50. For example, the vibration unit 10 may be covered or surrounded by the first adhesive layer 41 and the second adhesive layer 42 or the adhesive layer 40. Thereby, the first surface (or the first electrode layer 13) and the second surface (or the second electrode layer 15) of the vibration unit 10 may be covered or protected by the first adhesive layer 41 and the second adhesive layer 42 or the adhesive layer 40.

[0056] Referring to FIG. 4b, in the vibration device 1 or the vibration unit 10 according to another embodiment of the present specification, either one of the first cover member 30 and the second cover member 50 may be omitted. For example, the second cover member 50 of the first cover member 30 and the second cover member 50 may be omitted. When the second cover member 50 is omitted, the second surface (or the lower surface) of the vibration unit 10 may be at least partially covered or surrounded by the adhesive layer 40 or the second adhesive layer 42. Thereby, the second surface of the vibration unit 10 may be at least partially covered or protected by the adhesive layer 40 or the second adhesive layer 42. When the second cover member 50 is omitted, the first cover member 30 may be a cover member, a cover film, a protection member, or a protection film, but the embodiments of the present specification are not limited thereto.

[0057] The vibration device 1 according to an embodiment of the present specification may further include a signal cable (or a signal line) 90. The signal cable 90 may be electrically connected to each of the first electrode layer 13 and the second electrode layer 15 of the vibration unit 10 on one side of the vibration unit 10. For example, the signal cable 90 may be electrically connected to each of the first electrode layer 13 and the second electrode layer 15 of the vibration unit 10 on one or more sides of the vibration unit 10, but the embodiments of the present specification are not limited thereto.

[0058] According to the embodiments of this specification, the end portion (or the terminal portion) of the signal cable 90 can be disposed or inserted (or accommodated) between one side edge of the first cover member 30 and one side edge of the second cover member 50. One side edge of the first cover member 30 and one side edge of the second cover member 50 can accommodate a part of the signal cable 90 or can cover the signal cable 90 from above and below. According to other embodiments of this specification, the end portion (or the terminal portion) of the signal cable 90 can be disposed or inserted (or accommodated) between one side edge of the first cover member 30 and one side edge of the second adhesive layer 42. One side edge of the first cover member 30 and one side edge of the second adhesive layer 42 can accommodate a part of the signal cable 90 or can cover the signal cable 90 from above and below. Thereby, the signal cable 90 can be integrated with the vibrating part 10. For example, the vibrating device 1 according to the first embodiment of this specification can be a vibrating device integrated with the signal cable 90. For example, the signal cable 90 can be composed of a flexible cable, a flexible printed circuit cable, a flexible flat cable, a flexible multilayer printed circuit, or a flexible multilayer printed circuit board, but the embodiments of this specification are not limited thereto.

[0059] The signal cable 90 according to the embodiments of this specification can include a film member 91, at least one signal line 92, and at least one adhesive member 93.

[0060] The film member 91 can include a transparent or an opaque material of a plastic material. For example, the film member 91 can be implemented by any one or more of synthetic resins including fluororesin, polyimide-based resin, polyurethane-based resin, polyester-based resin, polyethylene-based resin, and polypropylene-based resin, but the embodiments of this specification are not limited thereto. The film member 91 can be a base film or an insulating film.

[0061] The film member 91 has a constant width in the first direction (X) and can extend long in the second direction (Y) intersecting the first direction (X).

[0062] At least one signal line 92 can include at least one first signal line 92a and at least one second signal line 92b. At least one first signal line 92a and at least one second signal line 92b can be arranged within the film member 91. For example, at least one first signal line 92a and / or at least one second signal line 92b can be a conductive material including copper (Cu), aluminum (Al), silver (Ag), or an alloy material of copper (Cu) and silver (Ag), but the embodiments of this specification are not limited thereto.

[0063] At least one first signal line 92a can be arranged within the film member 91 in the second direction (Y) (or side by side). At least one second signal line 92b can be arranged within the film member 91 in the second direction (Y) (or side by side). At least one first signal line 92a and at least one second signal line 92b can be spaced apart from each other in the first direction (X) within the film member 91. At least one first signal line 92a and at least one second signal line 92b can be arranged parallel to each other within the film member 91.

[0064] The film member 91 can include a first region A1 and a second region A2. For example, the first region A1 of the film member 91 can be arranged in a part on one side (or the left side) in the first direction (X). The second region A2 of the film member 91 can be arranged in a part on the other side (or the right side) in the first direction (X). For example, at least one first signal line 92a can be arranged in the first region A1 of the film member 91. At least one second signal line 92b can be arranged in the second region A2 of the film member 91, but the embodiments of this specification are not limited thereto.

[0065] The film member 91 can include a first film member 91a disposed on the first surface (or upper surface) of at least one signal line 92, and a second film member 91b disposed on the second surface (or lower surface) of at least one signal line 92. For example, the first film member 91a can be disposed on the first surface (or upper surface) of at least one first signal line 92a and at least one second signal line 92b. The second film member 91b can be disposed on the second surface (or lower surface) of at least one first signal line 92a and at least one second signal line 92b. At least one first signal line 92a and at least one second signal line 92b can be disposed between the first film member 91a and the second film member 91b.

[0066] The first film member 91a can be configured to cover at least a part of the first surface of at least one signal line 92. For example, the first film member 91a can be configured to cover at least a part of the first surface of at least one first signal line 92a and at least one second signal line 92b. Thus, the first film member 91a can protect the first surface of at least one first signal line 92a and at least one second signal line 92b.

[0067] The second film member 91b can be configured to cover at least a part of the second surface of at least one signal line 92. For example, the second film member 91b can be configured to cover at least a part of the second surface of at least one first signal line 92a and at least one second signal line 92b. Thus, the second film member 91b can protect the second surface of at least one first signal line 92a and at least one second signal line 92b.

[0068] At least one first signal line 92a can be arranged between the first film member 91a and the second film member 91b in the second direction (Y) (or side by side). At least one first signal line 92a can be arranged in the first region A1 of the film member 91. At least one first signal line 92a can be arranged between the first film member 91a and the second film member 91b in the first region A1 of the film member 91.

[0069] At least one second signal line 92b can be arranged between the first film member 91a and the second film member 91b in the second direction (Y) (or side by side). At least one second signal line 92b can be arranged in the second region A2 of the film member 91. At least one second signal line 92b can be arranged between the first film member 91a and the second film member 91b in the second region A2 of the film member 91.

[0070] At least one first signal line 92a and at least one second signal line 92b can be spaced apart from each other in the first direction (X) between the first film member 91a and the second film member 91b. At least one first signal line 92a and at least one second signal line 92b can be arranged parallel to each other (or side by side) between the first film member 91a and the second film member 91b.

[0071] The first film member 91a and the second film member 91b according to the embodiments of the present specification can include at least one adhesive member 93. The first film member 91a can include a first adhesive member 93a to which at least one first signal line 92a and at least one second signal line 92b are coupled or adhered on the second surface (or lower surface). For example, the first adhesive member 93a can be disposed between the first surface (or upper surface) of at least one of the first and second signal lines 92a, 92b and the first film member 91a. The second film member 91b can include a second adhesive member 93b to which at least one first signal line 92a and at least one second signal line 92b are coupled or adhered on the first surface (or upper surface). For example, the second adhesive member 93b can be disposed between the second surface (or lower surface) of at least one of the first and second signal lines 92a, 92b and the second film member 91b. For example, the first adhesive member 93a and the second adhesive member 93b can include an electrically insulating material that is adhesive and capable of compression and / or restoration.

[0072] Each of the first adhesive member 93a and the second adhesive member 93b can include an epoxy resin, an acrylic resin, a silicone resin, a urethane resin, an acrylic polymer, a silicone polymer, or a urethane polymer, but the embodiments of this specification are not limited thereto. For example, each of the first adhesive member 93a and the second adhesive member 93b can be composed of a pressure-sensitive adhesive (PSA), a thermosetting adhesive, a thermoplastic adhesive, etc., but the embodiments of this specification are not limited thereto. According to the embodiments of this specification, each of the first adhesive member 93a and the second adhesive member 93b can be composed of a thermoplastic adhesive so as to serve as a medium for connecting or bonding the first film member 91a and the second film member 91b to each other and also serving as a medium for connecting or bonding to the vibrating part 10. For example, the thermoplastic adhesive can include polyethylene (PE), polycarbonate (PC), or polyvinyl chloride (PVC), etc., but the embodiments of this specification are not limited thereto. For example, the thermosetting adhesive and the thermoplastic adhesive can be materials with a glass transition temperature of normal temperature or higher, but the embodiments of this specification are not limited thereto.

[0073] The first film member 91a can be connected or bonded to the first surface (or upper surface) of at least one first signal line 92a and at least one second signal line 92b via the first adhesive member 93a. The second film member 91b can be connected or bonded to the second surface (or lower surface) of at least one first signal line 92a and at least one second signal line 92b via the second adhesive member 93b. The first film member 91a and the second film member 91b can be connected or bonded to each other with at least one first signal line 92a and at least one second signal line 92b sandwiched therebetween via the first adhesive member 93a and the second adhesive member 93b.

[0074] According to an embodiment of the present specification, the first film member 91a can be connected or coupled to at least one signal line 92 via the first adhesive member 93a. And the second film member 91b can be connected or coupled to the first film member 91a with at least one signal line 92 interposed therebetween by a film laminating process mediated by the first adhesive member 93a and the second adhesive member 93b. For example, in a state where the first film member 91a is connected or coupled to at least one signal line 92 via the first adhesive member 93a, it is joined to the second film member 91b via the second adhesive member 93b, and can be connected or coupled to the second film member 91b with at least one signal line 92 interposed therebetween by a film laminating process mediated by the first adhesive member 93a and the second adhesive member 93b.

[0075] According to an embodiment of the present specification, the second film member 91b can be connected or coupled to at least one signal line 92 via the second adhesive member 93b. And the first film member 91a can be connected or coupled to the second film member 91b with at least one signal line 92 interposed therebetween by a film laminating process mediated by the first adhesive member 93a and the second adhesive member 93b. For example, in a state where the second film member 91b is connected or coupled to at least one signal line 92 via the second adhesive member 93b, it is joined to the first film member 91a via the first adhesive member 93a, and can be connected or coupled to the first film member 91a with at least one signal line 92 interposed therebetween by, for example, a film laminating process mediated by the first adhesive member 93a and the second adhesive member 93b.

[0076] According to other embodiments of this specification, the first film member 91a can be connected or joined to the first surface (or upper surface) of at least one first signal line 92a in the first region A1 of the first film member 91a via the first adhesive member 93a. The second film member 91b can be connected or joined to the second surface (or lower surface) of at least one second signal line 92b in the second region A2 of the second film member 91b via the second adhesive member 93b. For example, the first film member 91a is connected or joined via the first adhesive member 93a to at least one first signal line 92a, and the second film member 91b is connected or joined via the second adhesive member 93b to at least one second signal line 92b. In this state, they are joined together via the first adhesive member 93a and the second adhesive member 93b, and at least one first signal line 92a and at least one second signal line 92b can be connected or joined to each other with the at least one first signal line 92a and the at least one second signal line 92b sandwiched therebetween by a film laminating process mediated by the first adhesive member 93a and the second adhesive member 93b.

[0077] Each of at least one first signal line 92a and at least one second signal line 92b according to the embodiments of this specification can include a plurality of first signal lines 92-1, 92-2 and a plurality of second signal lines 92-3, 92-4. The plurality of first signal lines 92-1, 92-2 and the plurality of second signal lines 92-3, 92-4 can be arranged between the first film member 91a and the second film member 91b.

[0078] The plurality of first signal lines 92-1, 92-2 and the plurality of second signal lines 92-3, 92-4 are spaced apart from each other in the first direction (X), and can be arranged between the first film member 91a and the second film member 91b in the second direction (Y) (or side by side) intersecting the first direction (X). Each of the plurality of first signal lines 92-1, 92-2 and the plurality of second signal lines 92-3, 92-4 has a width W L parallel to the first direction (X) and can extend long in the second direction (Y).

[0079] The plurality of first signal lines 92-1, 92-2 can be arranged between the first film member 91a and the second film member 91b in the first region A1 (or the left region) of the film member 91. The plurality of first signal lines 92-1, 92-2 can be spaced apart from each other in the first direction (X) and arranged between the first film member 91a and the second film member 91b side by side in a second direction (Y) intersecting the first direction (X).

[0080] According to the first embodiment of this specification, among the plurality of first signal lines 92-1 and 92-2, the first signal line 92-1 adjacent to one side (or the left side) edge of the film member 91 can be arranged at a first interval (or distance) D1 from the end of one side edge of the film member 91 in the first direction (X). The plurality of first signal lines 92-1 and 92-2 can be arranged at a second interval (or distance) D2 from each other in the first direction (X). The first interval D1 can be the distance between the plurality of first signal lines 92-1 and 92-2 and the end of one side edge of the film member 91 (or the end of the shortest edge). The first interval D1 can be the same as or less than the second interval D2, but the embodiments of this specification are not limited thereto. For example, the first interval D1 may be larger than the second interval D2. The first interval D1 can be set within a range where the first adhesive member 93a between the plurality of first signal lines 92-1 and 92-2 and the first film member 91a can directly contact the second adhesive member 93b while covering the side surface of the first signal line 92-1. Or, the first interval D1 can be set within a range where the second adhesive member 93b between the plurality of first signal lines 92-1 and 92-2 and the second film member 91b can directly contact the first adhesive member 93a while covering the side surface of the first signal line 92-1. Or, the first interval D1 can be set within a range where the first adhesive member 93a can directly contact the second adhesive member 93b and the side surface of the first signal line 92-1 can be covered together by the first adhesive member 93a and the second adhesive member 93b. The second interval D2 can prevent an electrical short circuit between the plurality of first signal lines 92-1 and 92-2 and can be set within a range where the first adhesive member 93a can directly contact the second adhesive member 93b while covering the side surfaces of the plurality of first signal lines 92-1 and 92-2. Or, the second interval D2 can prevent an electrical short circuit between the plurality of first signal lines 92-1 and 92-2 and can be set within a range where the second adhesive member 93b can directly contact the first adhesive member 93a while covering the side surfaces of the plurality of first signal lines 92-1 and 92-2.Alternatively, the second interval D2 can be set within a range where the first adhesive member 93a directly contacts the second adhesive member 93b and the first adhesive member 93a and the second adhesive member 93b can together cover the respective side surfaces of the plurality of first signal lines 92-1, 92-2.

[0081] According to the first embodiment of the present specification, among the plurality of second signal lines 92-3 and 92-4, the second signal line 92-4 adjacent to the other side (or the right side) edge of the film member 91 can be arranged at a first interval D1 in the first direction (X) from the end of the other side edge of the film member 91. The embodiments of the present specification are not limited thereto. For example, the second signal line 92-4 adjacent to the other side (or the right side) edge of the film member 91 can be arranged at an interval the same as or different from the first interval D1 from the end of the other side edge of the film member 91. The plurality of second signal lines 92-3 and 92-4 can be arranged at an interval the same as or different from the second interval D2 in the first direction (X). The first interval D1 can be the same as or less than the second interval D2, but the embodiments of the present specification are not limited thereto. For example, the first interval D1 may be larger than the second interval D2. The first interval D1 can be set within a range where the first adhesive member 93a between the plurality of second signal lines 92-3 and 92-4 and the first film member 91a can directly contact the second adhesive member 93b while covering the side surface of the second signal line 92-4. Or, the first interval D1 can be set within a range where the second adhesive member 93b between the plurality of second signal lines 92-3 and 92-4 and the second film member 91b can directly contact the first adhesive member 93a while covering the side surface of the second signal line 92-4. The second interval D2 can be set within a range where an electrical short circuit between the plurality of second signal lines 92-3 and 92-4 due to the movement of the second signal lines 92-3 and 92-4 can be prevented, and the first adhesive member 93a can directly contact the second adhesive member 93b while covering the side surfaces of the plurality of second signal lines 92-3 and 92-4. Or, the second interval D2 can be set within a range where an electrical short circuit between the plurality of second signal lines 92-3 and 92-4 due to the movement of the second signal lines 92-3 and 92-4 can be prevented, and the second adhesive member 93b can directly contact the first adhesive member 93a while covering the side surfaces of the plurality of second signal lines 92-3 and 92-4. Or, the second interval D2 can be set within a range where the first adhesive member 93a can directly contact the second adhesive member 93b and the first adhesive member 93a and the second adhesive member 93b can together cover the side surfaces of the plurality of first signal lines 92-1 and 92-2.

[0082] According to the first embodiment of the present specification, among the plurality of first signal lines 92-1, 92-2 and the plurality of second signal lines 92-3, 92-4, the first signal line 92-2 and the second signal line 92-3 adjacent to each other can be arranged to be separated from each other in the first direction (X) by a third interval D3. The third interval D3 can be more than twice the first interval D1, but the embodiments of the present specification are not limited thereto. For example, the third interval D3 can be the same as or different from the first interval D1 and / or the second interval D2.

[0083] The film member 91 according to the embodiment of the present specification can include extension portions 91c, 91d disposed on one surface (or one side) of any one of at least one first signal line 92a and at least one second signal line 92b. The extension portions 91c, 91d are disposed only on one surface (or one side) of any one of at least one first signal line 92a and at least one second signal line 92b, so that one other surface (or the other side) of at least one of the at least one first signal line 92a and the at least one second signal line 92b can be exposed.

[0084] The film member 91 can include a first extension portion 91c extending from a first film member 91a disposed on the first surface (or the upper surface) of at least one first signal line 92a, and a second extension portion 91d extending from a second film member 91b disposed on the second surface (or the lower surface) of at least one second signal line 92b.

[0085] The first extension portion 91c may be disposed in the first region A1 of the film member 91, and the second extension portion 91d may be disposed in the second region A2 of the film member 91. For example, the first extension portion 91c may not be disposed or partially disposed in the second region A2 of the film member 91, and the second extension portion 91d may not be disposed or partially disposed in the first region A1 of the film member 91. The first extension portion 91c and the second extension portion 91d may be spaced apart from each other in the first direction (X), but the embodiments of this specification are not limited thereto. For example, the first extension portion 91c may partially overlap with the second extension portion 91d. For example, the first extension portion 91c may protrude or extend from the first film member 91a. The first extension portion 91c may be configured integrally (or as a single unit) with the first film member 91a, but the embodiments of this specification are not limited thereto. The first extension portion 91c may branch and extend from the first film member 91a and may not overlap with the second film member 91b. The second extension portion 91d may protrude or extend from the second film member 91b. The second extension portion 91c may be configured integrally (or as a single unit) with the second film member 91b, but the embodiments of this specification are not limited thereto. The second extension portion 91d may branch and extend from the second film member 91b and may not overlap with the first film member 91a.

[0086] According to the first embodiment of this specification, each of the first extension portion 91c and the second extension portion 91d has a width W in the first direction (X) F1 and are spaced apart from each other at a fourth interval D4 in the first direction (X), and may extend side by side in a second direction (Y) intersecting the first direction (X), but the embodiments of this specification are not limited thereto. For example, the first extension portion 91c and the second extension portion 91d may have different widths from each other in the first direction (X). The first extension portion 91c and the second extension portion 91d may be disposed on the first surface (or upper surface) and the second surface (or lower surface) of the vibrating portion 10 so as to be displaced from each other with the vibrating portion 10 interposed therebetween. For example, the first extension portion 91c may be disposed on the first surface (or upper surface) of the vibrating portion 10, and the second extension portion 91d may be disposed on the second surface (or lower surface) of the vibrating portion 10, but the embodiments of this specification are not limited thereto.

[0087] The first extension portion 91c can be configured to cover the first surface (or upper surface) of at least one first signal line 92a. The second surface (or lower surface) of at least one first signal line 92a disposed in the first extension portion 91c may not have the second film member 91b or the second extension portion 91d disposed thereon and may be exposed to the outside. Thereby, the second surface of at least one first signal line 92a disposed in the first extension portion 91c can be in direct contact with the first surface (or upper surface) of the vibrating portion 10 by being exposed to the outside. For example, the second surface of at least one first signal line 92a disposed in the first extension portion 91c can be electrically connected to the first electrode layer 13 of the vibrating portion 10. At least a part of the second surface of at least one first signal line 92a disposed in the first extension portion 91c can be directly connected to the first electrode layer 13 of the vibrating portion 10.

[0088] The second extension portion 91d can be configured to cover the second surface (or lower surface) of at least one second signal line 92b. The first surface (or upper surface) of at least one second signal line 92b disposed in the second extension portion 91d may not have the first film member 91a or the first extension portion 91c disposed thereon and may be exposed to the outside. Thereby, the first surface of at least one second signal line 92b disposed in the second extension portion 91d can be in direct contact with the second surface (or lower surface) of the vibrating portion 10 by being exposed to the outside. For example, the first surface of at least one second signal line 92b disposed in the second extension portion 91d can be electrically connected to the second electrode layer 15 of the vibrating portion 10. At least a part of the first surface of at least one second signal line 92b disposed in the second extension portion 91d can be directly connected to the second electrode layer 15 of the vibrating portion 10.

[0089] The first extension portion 91c and the second extension portion 91d according to the embodiment of the present specification may include at least one adhesive member 93a, 93b. For example, the first extension portion 91c may include a first adhesive member 93a to which at least one first signal line 92a is coupled or adhered on a second surface (or a lower surface) of the first extension portion 91c. Also, the second extension portion 91d may include a second adhesive member 93b to which at least one second signal line 92b is coupled or adhered on a first surface (or an upper surface) of the second extension portion 91d.

[0090] According to the first embodiment of the present specification, the first extension 91c may be connected or coupled to a first surface (or upper surface) of at least one first signal line 92a via a first adhesive member 93a. The first adhesive member 93a may be disposed on a second surface (or lower surface) of the first extension 91c. The width W of the first adhesive member 93a may be 1 / 2 mm or 1 / 2 mm. A1 is the width W of the first extension portion 91c on a plane F1 For example, the width W of the first adhesive member 93a may be equal to or less than the width W of the first adhesive member 93a. A1 is the width W of the first extension portion 91c F1 For example, the first adhesive member 93a may be formed on the entire second surface of the first extension portion 91c. For example, the first adhesive member 93a may be disposed in a region between the first extension portion 91c and the first electrode layer 13 so as to cover at least one first signal line 92a.

[0091] According to the first embodiment of the present specification, the first extension portion 91c can be connected or coupled to the first surface (or upper surface) of the vibrating portion 10 with at least one first signal line 92a interposed therebetween via the first adhesive member 93a. The first adhesive member 93a can be adjacent to the first surface of the vibrating portion 10 while covering at least one first signal line 92a. For example, the first adhesive member 93a can be directly connected or coupled to the first surface of the vibrating portion 10 while covering both side surfaces of at least one first signal line 92a. At least one first signal line 92a disposed in the first extension portion 91c can be inserted (or accommodated) and fixed between the first extension portion 91c and the vibrating portion 10 by a film lamination process mediated by the first adhesive member 93a formed in the first extension portion 91c. Thereby, at least one first signal line 92a can be maintained in a state of being electrically connected to the first electrode layer 13 of the vibrating portion 10. According to the embodiment of the present specification, the first adhesive member 93a can be configured such that the adhesive area in contact or adjacent to the vibrating portion 10, excluding at least one first signal line 92a, is 25% or more of the total area of the first adhesive member 93a, but the embodiment of the present specification is not limited thereto. For example, the adhesive area can be configured to be 30% or more, 35% or more, 40% or more, 45% or more, or 50% or more. For example, the first adhesive member 93a can be configured such that the adhesive area in direct contact or adjacent to the first electrode layer 13 is 25% or more of the total area of the first adhesive member 93a. For example, the adhesive area can be configured to be 30% or more, 35% or more, 40% or more, 45% or more, or 50% or more. For example, the first adhesive member 93a can configure the adhesive area according to the width of at least one first signal line 92a. When the adhesive area is less than 25%, since the vibrating portion 10 does not adhere to the first extension portion 91c, problems such as the electrical connection between at least one first signal line 92a and the first electrode layer 13 of the vibrating portion 10 being interrupted may occur.

[0092] At least one first signal line 92a according to the first embodiment of the present specification may include a plurality of first signal lines 92-1, 92-2. The plurality of first signal lines 92-1, 92-2 are spaced apart from each other in the first direction (X), and may be arranged on the second surface (or lower surface) of the first extension 91c in the second direction (Y) (or side by side) intersecting the first direction (X). Each of the plurality of first signal lines 92-1, 92-2 has a width W parallel to the first direction (X). L and may be arranged spaced apart from each other at a second interval D2.

[0093] According to the first embodiment of the present specification, the first signal line 92-1 adjacent to the edge on one side (or the left side) of the first extension 91c among the plurality of first signal lines 92-1, 92-2 may be arranged at a first interval D1 from the end of the edge on one side of the first extension 91c. Also, the first signal line 92-2 adjacent to the edge on the other side (or the right side) of the first extension 91c among the plurality of first signal lines 92-1, 92-2 may be arranged at an interval the same as or different from the first interval D1 from the end of the edge on the other side of the first extension 91c. The first interval D1 may be the same as or less than the second interval D2, but the embodiments of the present specification are not limited thereto. The first interval D1 and the second interval D2 can be set within a range where the first adhesive member 93a between the plurality of first signal lines 92-1, 92-2 and the first extension 91c can be directly adjacent to the first surface (or upper surface) of the vibrating part 10 while covering the side surfaces of each of the plurality of first signal lines 92-1, 92-2. According to the embodiment of the present specification, the first adhesive member 93a may be configured such that, except for the plurality of first signal lines 92-1, 92-2, the adhesive area in contact with the vibrating part 10 is 25% or more of the total area of the first adhesive member 93a. For example, for example, the adhesive area may be configured to be 30% or more, 35% or more, 40% or more, 45% or more, or 50% or more. For example, the first adhesive member 93a may configure the adhesive area according to the widths of the plurality of first signal lines 92-1, 92-2.

[0094] According to the first embodiment of the present specification, the second extension portion 91d can be connected or coupled to the second surface (or lower surface) of at least one second signal line 92b via the second adhesive member 93b. The second adhesive member 93b can be disposed on the first surface (or upper surface) of the second extension portion 91d. The width W of the second adhesive member 93b A1 can be the same as or less than the width W of the second extension portion 91d, but the embodiments of the present specification are not limited thereto. For example, the second adhesive member 93b can be formed over the entire first surface of the second extension portion 91d. F1

[0095] ​According to the first embodiment of the present specification, the second extension portion 91d can be connected or coupled to the second surface (or lower surface) of the vibrating portion 10 with at least one second signal line 92b interposed therebetween via the second adhesive member 93b. The second adhesive member 93b can be adjacent to the second surface of the vibrating portion 10 while covering at least one second signal line 92b. For example, the second adhesive member 93b can be directly connected or coupled to the second surface of the vibrating portion 10 while covering both side surfaces of at least one second signal line 92b. At least one second signal line 92b disposed in the second extension portion 91d can be inserted (or accommodated) and fixed between the second extension portion 91d and the vibrating portion 10 by a film laminating process mediated by the second adhesive member 93b formed in the second extension portion 91d. Thereby, at least one second signal line 92b can be maintained in a state of being electrically connected to the second electrode layer 15 of the vibrating portion 10. According to the embodiment of the present specification, the second adhesive member 93b can be configured such that, except for at least one second signal line 92b, the adhesive area in contact with the vibrating portion 10 is 25% or more of the total area of the second adhesive member 93b. For example, the adhesive area can be configured to be 30% or more, 35% or more, 40% or more, 45% or more, or 50% or more. For example, the second adhesive member 93b can be configured such that the adhesive area in direct contact with or in contact with the second electrode layer 15 is 25% or more of the total area of the second adhesive member 93b. For example, the adhesive area can be configured to be 30% or more, 35% or more, 40% or more, 45% or more, or 50% or more. For example, the second adhesive member 93b can configure the adhesive area according to the width of at least one second signal line 92b.

[0096] At least one second signal line 92b according to the first embodiment of the present specification can include a plurality of second signal lines 92-3, 92-4. The plurality of second signal lines 92-3, 92-4 are spaced apart from each other in the first direction (X) and can be disposed on the first surface (or upper surface) of the second extension portion 91d in the second direction (Y) (or side by side) intersecting the first direction (X). Each of the plurality of second signal lines 92-3, 92-4 has a width W L parallel to the first direction (X) and can be spaced apart from each other at a second interval D2.

[0097] According to the first embodiment of the present specification, among the plurality of second signal lines 92-3 and 92-4, the second signal line 92-3 adjacent to one side (or the left side) edge of the second extension portion 91d can be arranged at an interval different from or the same as the first interval D1 from the end of one side edge of the second extension portion 91d. Also, among the plurality of second signal lines 92-3 and 92-4, the second signal line 92-4 adjacent to the other side (or the right side) edge of the second extension portion 91d can be arranged at an interval different from or the same as the first interval D1 from the end of the other side edge of the second extension portion 91d. The first interval D1 can be the same as or less than the second interval D2. The first interval D1 and the second interval D2 can be set within a range where the second adhesive member 93b between the plurality of second signal lines 92-3 and 92-4 and the second extension portion 91d can be directly adjacent to the second surface (or the lower surface) of the vibrating portion 10 while covering the side surfaces of the plurality of second signal lines 92-3 and 92-4. According to the embodiment of the present specification, the second adhesive member 93b can be configured such that, except for the plurality of second signal lines 92-3 and 92-4, the adhesive area in contact with the vibrating portion 10 is 25% or more of the total area of the second adhesive member 93b. For example, the adhesive area can be configured to be 30% or more, 35% or more, 40% or more, 45% or more, or 50% or more. For example, the second adhesive member 93b can configure the adhesive area according to the widths of the plurality of second signal lines 92-3 and 92-4.

[0098] In the vibration device 1 according to the first embodiment of the present specification, each of the first extension portion 91c and the second extension portion 91d of the signal cable 90 inserted (or accommodated) between the first cover member 30 and the second cover member 50 can be arranged on the first surface (or upper surface) and the second surface (or lower surface) of the vibration portion 10 so as to be displaced from each other with the vibration portion 10 interposed therebetween. At least one first signal line 92a arranged on the first extension portion 91c is connected to the first electrode layer 13 of the vibration portion 10, and the first adhesive member 93a surrounds at least one first signal line 92a and can be directly connected or joined to the first surface of the vibration portion 10. Further, at least one second signal line 92b arranged on the second extension portion 91d is connected to the second electrode layer 15 of the vibration portion 10, and the second adhesive member 93b surrounds at least one second signal line 92b and can be directly connected or joined to the second surface of the vibration portion 10. Thereby, at least one first signal line 92a and at least one second signal line 92b are firmly fixed by the first adhesive member 93a and the second adhesive member 93b respectively, so that it is possible to prevent a contact failure between the vibration portion 10 and the signal cable 90 due to the floating of the signal cable 90. Further, in the vibration device 1 according to the first embodiment of the present specification, since at least one first signal line 92a and at least one second signal line 92b can be firmly fixed by the first adhesive member 93a and the second adhesive member 93b, a soldering process for electrical connection between the vibration portion 10 and the signal cable 90 is unnecessary, and the structure and manufacturing process of the vibration device 1 can be simplified.

[0099] FIG. 5 is a diagram showing a vibration device according to the second embodiment of the present specification. FIG. 6 is a cross-sectional view taken along line D-D' of FIG. 5 according to the second embodiment of the present specification. FIG. 7 is a cross-sectional view taken along line E-E' of FIG. 5 according to the second embodiment of the present specification. FIG. 8 is a cross-sectional view taken along line F-F' of FIG. 5 according to the second embodiment of the present specification. FIGS. 5 to 8 are configured by changing the structure of the signal cable of the vibration device described with reference to FIGS. 1 to 4b and adding a conductive adhesive member. Accordingly, in the description of FIGS. 5 to 8, the same drawing reference numerals are given to the remaining configurations except for the changed structure of the signal cable, the conductive adhesive member, and the related configurations, and the overlapping description thereof is omitted or simplified.

[0100] Referring to FIGS. 5 to 8, the vibration device 2 according to the second embodiment of the present specification may include a vibration unit 10, a first cover member 30, a second cover member 50, a signal cable 90, and conductive adhesive members 95a and 95b.

[0101] The signal cable 90 may be electrically connected to each of the first electrode layer 13 and the second electrode layer 15 of the vibration unit 10, for example, on one side of the vibration unit 10.

[0102] The signal cable 90 according to the embodiment of the present specification may include a film member 91, at least one signal line 92, and at least one adhesive member 93.

[0103] The film member 91 may have a constant width in the first direction (X) and may extend long in the second direction (Y) intersecting the first direction (X).

[0104] At least one signal line 92 can include at least one first signal line 92a and at least one second signal line 92b. The at least one first signal line 92a and the at least one second signal line 92b can be disposed within the film member 91. For example, the at least one first signal line 92a and the at least one second signal line 92b can be a conductive material such as copper (Cu), aluminum (Al), silver (Ag), or an alloy material of copper (Cu) and silver (Ag), but the embodiments of this specification are not limited thereto.

[0105] Each of the at least one first signal line 92a and the at least one second signal line 92b according to the embodiments of this specification can include a plurality of first signal lines 92-1, 92-2 and a plurality of second signal lines 92-3, 92-4. The plurality of first signal lines 92-1, 92-2 and the plurality of second signal lines 92-3, 92-4 can be disposed between the first film member 91a and the second film member 91b.

[0106] According to the second embodiment of this specification, among the plurality of first signal lines 92-1, 92-2, the first signal line 92-1 can be disposed at an edge (or left side) of one side of the film member 91. The plurality of first signal lines 92-1, 92-2 can be spaced apart from each other in the first direction (X) by a fifth interval D5. The fifth interval D5 can be set within a minimum range that can prevent an electrical short circuit between the plurality of first signal lines 92-1, 92-2.

[0107] According to the second embodiment of this specification, among the plurality of second signal lines 92-3, 92-4, the second signal line 92-4 can be disposed at an edge (or right side) of the other side of the film member 91. The plurality of second signal lines 92-3, 92-4 can be spaced apart from each other in the first direction (X) by an interval that is the same as or different from the fifth interval D5. The fifth interval D5 can be set within a minimum range that can prevent an electrical short circuit between the plurality of second signal lines 92-3, 92-4.

[0108] According to the second embodiment of the present specification, among the plurality of first signal lines 92-1 and 92-2 and the plurality of second signal lines 92-3 and 92-4, the first signal line 92-2 and the second signal line 92-3 adjacent to each other can be arranged to be separated from each other in the first direction (X) by a sixth interval D6. The sixth interval D6 can be the same as or greater than the fifth interval D5, but the embodiments of the present specification are not limited thereto. For example, the sixth interval D6 may be smaller than the fifth interval D5.

[0109] The film member 91 according to the embodiment of the present specification can include a first extension 91c extending from a first film member 91a disposed on a first surface (or upper surface) of at least one first signal line 92a, and a second extension 91d extending from a second film member 91b disposed on a second surface (or lower surface) of at least one second signal line 92b.

[0110] According to the second embodiment of the present specification, each of the first extension 91c and the second extension 91d has a width W in the first direction (X), is separated from each other by an eighth interval D8 in the first direction (X), and can extend side by side in a second direction (Y) intersecting the first direction (X). The first extension 91c and the second extension 91d can be disposed on the first surface (or upper surface) and the second surface (or lower surface) of the vibrating portion 10 so as to be displaced from each other with the vibrating portion 10 interposed therebetween. For example, the first extension 91c can be disposed on the first surface (or upper surface) of the vibrating portion 10, and the second extension 91d can be disposed on the second surface (or lower surface) of the vibrating portion 10. F2

[0111] The first extension 91c and the second extension 91d according to the embodiment of the present specification can include at least one adhesive member 93a, 93b. For example, the first extension 91c can include a first adhesive member 93a to which at least one first signal line 92a is coupled or adhered on a second surface (or lower surface) of the first extension 91c. Also, the second extension 91d can include a second adhesive member 93b to which at least one second signal line 92b is coupled or adhered on a first surface (or upper surface) of the second extension 91d.

[0112] According to the second embodiment of this specification, the first extension portion 91c can be connected or coupled to the first surface (or upper surface) of at least one first signal line 92a via the first adhesive member 93a. The first adhesive member 93a can be disposed on the second surface (or lower surface) of the first extension portion 91c. The width W of the first adhesive member 93a A2 can be the same as or less than the width W of the first extension portion 91c F2 but the embodiments of this specification are not limited thereto. For example, the first adhesive member 93a can be formed over the entire second surface of the first extension portion 91c.

[0113] According to the second embodiment of this specification, the second extension portion 91d can be connected or coupled to the second surface (or lower surface) of at least one second signal line 92b via the second adhesive member 93b. The second adhesive member 93b can be disposed on the first surface (or upper surface) of the second extension portion 91d. The width W of the second adhesive member 93b A2 can be the same as or less than the width W of the second extension portion 91d F2 but the embodiments of this specification are not limited thereto. For example, the second adhesive member 93b can be formed over the entire first surface of the second extension portion 91d.

[0114] The vibration device 2 according to the second embodiment of this specification can further include conductive adhesive members 95a, 95b. The conductive adhesive members 95a, 95b can be disposed between the vibration portion 10 and any one of at least one first signal line 92a and at least one second signal line 92b.

[0115] The conductive adhesive members 95a and 95b can include a first conductive adhesive member 95a disposed between at least one first signal line 92a and the first surface (or upper surface) of the vibrating portion 10. The conductive adhesive members 95a and 95b can include a second conductive adhesive member 95b disposed between at least one second signal line 92b and the second surface (or lower surface) of the vibrating portion 10. For example, the first conductive adhesive member 95a and the second conductive adhesive member 95b can include an adhesive and an electrically connectable conductive substance. For example, the conductive substance can include silver (Ag) or carbon, but the embodiments of this specification are not limited thereto.

[0116] Each of the first conductive adhesive member 95a and the second conductive adhesive member 95b can be a conductive double-sided tape, a conductive double-sided adhesive pad, or a conductive double-sided cushion tape, but the embodiments of this specification are not limited thereto. For example, each of the first conductive adhesive member 95a and the second conductive adhesive member 95b can be composed of a pressure-sensitive adhesive (PSA), a thermosetting adhesive, or a thermoplastic adhesive. According to the embodiments of this specification, at least one of the first conductive adhesive member 95a and the second conductive adhesive member 95b can be composed of a thermosetting adhesive so as to prevent excessive curing and a decrease in adhesive properties even when exposed to a high temperature in a film lamination process. For example, the thermosetting adhesive can include epoxy, polyimide, or phenol resin, but the embodiments of this specification are not limited thereto. For example, the thermosetting adhesive can have a stable adhesive force at a high temperature above the glass transition temperature.

[0117] The first conductive adhesive member 95a can be disposed on the first surface (or upper surface) of the vibrating portion 10. The first conductive adhesive member 95a can be connected or coupled to at least one first signal line 92a disposed on the first extension portion 91c. The first conductive adhesive member 95a can be disposed on the first electrode layer 13 of the vibrating portion 10. The second surface (or lower surface) of at least one first signal line 92a disposed on the first extension portion 91c can be electrically connected to the first electrode layer 13 of the vibrating portion 10 via the first conductive adhesive member 95a.

[0118] According to the second embodiment of the present specification, the width W of the first conductive adhesive member 95a A3 can be the same as or greater than the width W of the first extension portion 91c, but the embodiments of the present specification are not limited thereto. The width W of the first conductive adhesive member 95a F2 can be the same as or greater than the width W of the first adhesive member 93a, but the embodiments of the present specification are not limited thereto. The width W of the first conductive adhesive member 95a A3 can be smaller than the width W of the first extension portion 91c. For example, the width W of the first conductive adhesive member 95a A2 can be greater than the fifth interval D5, so that the first conductive adhesive member 95a can overlap with each of at least one first signal line 92a. For example, the first conductive adhesive member 95a can be divided into portions corresponding to each of at least one first signal line 92a, and each portion can be the same as or greater than the width W A3 of the corresponding at least one first signal line 92a. F2 The width W of the first conductive adhesive member 95a A3 can be greater than the fifth interval D5, and thus the first conductive adhesive member 95a can overlap with each of at least one first signal line 92a. For example, the first conductive adhesive member 95a can be divided into portions corresponding to each of at least one first signal line 92a, and each portion can be the same as or greater than the width W L of the corresponding at least one first signal line 92a.

[0119] Of the plurality of first signal lines 92-1 and 92-2 disposed in the first extension portion 91c, the first signal line 92-1 adjacent to one side (or the left side) edge of the first conductive adhesive member 95a may be disposed at a seventh interval D7 from the end of one side edge of the first conductive adhesive member 95a. Also, of the plurality of first signal lines 92-1 and 92-2 disposed in the first extension portion 91c, the first signal line 92-2 adjacent to the other side (or the right side) edge of the first conductive adhesive member 95a may be disposed at an interval the same as or different from the seventh interval D7 from the end of the other side edge of the first conductive adhesive member 95a.

[0120] The second conductive adhesive member 95b may be disposed on the second surface (or the lower surface) of the vibrating portion 10. The second conductive adhesive member 95b may be connected to or coupled with at least one second signal line 92b disposed in the second extension portion 91d. The second conductive adhesive member 95b may be disposed on the second electrode layer 15 of the vibrating portion 10. The first surface (or the upper surface) of at least one second signal line 92b disposed in the second extension portion 91d may be electrically connected to the second electrode layer 15 of the vibrating portion 10 via the second conductive adhesive member 95b.

[0121] According to the second embodiment of the present specification, the width W of the second conductive adhesive member 95b A3 may be the same as or greater than the width W of the second extension portion 91d, but the embodiments of the present specification are not limited thereto. The width W of the second conductive adhesive member 95b F2 may be the same as or greater than the width W of the second adhesive member 93b, but the embodiments of the present specification are not limited thereto. A3 A2

[0122] ​​Of the plurality of second signal lines 92-3 and 92-4 disposed in the second extension portion 91d, the second signal line 92-3 adjacent to one side (or the left side) edge of the second conductive adhesive member 95b may be disposed at an interval different from or the same as the seventh interval D7 from the end of one side edge of the second conductive adhesive member 95b. Also, of the plurality of second signal lines 92-3 and 92-4 disposed in the second extension portion 91d, the second signal line 92-4 adjacent to the other side (or the right side) edge of the second conductive adhesive member 95b may be disposed at an interval different from or the same as the seventh interval D7 from the end of the other side edge of the second conductive adhesive member 95b.

[0123] In the vibration device 2 or the vibration unit 10 according to another embodiment of the present specification, either one of the first cover member 30 and the second cover member 50 can be omitted. For example, the second cover member 50 of the first cover member 30 and the second cover member 50 can be omitted. When the second cover member 50 is omitted, since the second surface (or the lower surface) of the vibration unit 10 is covered or surrounded by the adhesive layer 40 or the second adhesive layer 42, the second surface of the vibration unit 10 can be covered or protected by the adhesive layer 40 or the second adhesive layer 42. When the second cover member 50 is omitted, the first cover member 30 may be a cover member, a cover film, a protection member, or a protection film, but the embodiments of the present specification are not limited thereto.

[0124] In the vibration device 2 according to the second embodiment of the present specification, each of the first extension portion 91c and the second extension portion 91d of the signal cable 90 inserted (or accommodated) between the first cover member 30 and the second cover member 50 can be arranged on the first surface (or upper surface) and the second surface (or lower surface) of the vibration portion 10 so as to be displaced from each other with the vibration portion 10 interposed therebetween. At least one first signal line 92a arranged on the first extension portion 91c is connected or coupled to the first electrode layer 13 of the vibration portion 10 via the first conductive adhesive member 95a, and can be electrically connected to the first electrode layer 13 without a soldering process for electrical connection from at least one first signal line 92a to the first electrode layer 13. Further, at least one second signal line 92b arranged on the second extension portion 91d is connected or coupled to the second electrode layer 15 of the vibration portion 10 via the second conductive adhesive member 95b, and can be electrically connected to the second electrode layer 15 without a soldering process for electrical connection from at least one second signal line 92b to the second electrode layer 15. Thereby, at least one first signal line 92a and at least one second signal line 92b are electrically connected and firmly fixed by the first conductive adhesive member 95a and the second conductive adhesive member 95b respectively, so that it is possible to prevent poor contact between the vibration portion 10 and the signal cable 90 due to floating or bending of the signal cable 90 that may occur in the manufacturing process of attaching the signal cable 90 to the vibration portion 10. Further, in the vibration device 2 according to the second embodiment of the present specification, at least one first signal line 92a and at least one second signal line 92b can be firmly fixed by the first conductive adhesive member 95a and the second conductive adhesive member 95b, and a soldering process for electrical connection between the vibration portion 10 and the signal cable 90 is unnecessary, so that the structure and manufacturing process of the vibration device 2 can be simplified.

[0125] FIG. 9 is a diagram showing a vibration device according to the third embodiment of the present specification. FIG. 10 is a cross-sectional view of the vibration device according to the third embodiment of the present specification taken along line G-G' of FIG. 9. FIGS. 9 and 10 are obtained by further configuring a conductive adhesive member in the vibration device described with reference to FIGS. 1 to 4b. Therefore, in the description of FIGS. 9 and 10, the same reference numerals are given to the remaining configurations except for the conductive adhesive member and the related configurations, and the overlapping description thereof is omitted or simplified.

[0126] Referring to FIGS. 9 and 10, the vibration device 3 according to the third embodiment of the present specification may include a vibration unit 10, a first cover member 30, a second cover member 50, a signal cable 90, and conductive adhesive members 95a and 95b.

[0127] The signal cable 90 may be electrically connected to each of the first electrode layer 13 and the second electrode layer 15 of the vibration unit 10 on one side of the vibration unit 10, for example.

[0128] The signal cable 90 according to the embodiment of the present specification may include a film member 91, at least one first signal line 92a, and at least one second signal line 92b.

[0129] The film member 91 has a constant width in the first direction (X) and may extend long in the second direction (Y) intersecting the first direction (X).

[0130] At least one first signal line 92a and at least one second signal line 92b may be disposed in the film member 91. For example, at least one first signal line 92a and at least one second signal line 92b may be a conductive material such as copper (Cu), aluminum (Al), silver (Ag), or an alloy of copper (Cu) and silver (Ag), but the embodiments of the present specification are not limited thereto.

[0131] According to the embodiments of this specification, each of at least one first signal line 92a and at least one second signal line 92b may include a plurality of first signal lines 92-1, 92-2 and a plurality of second signal lines 92-3, 92-4. The plurality of first signal lines 92-1, 92-2 and the plurality of second signal lines 92-3, 92-4 may be disposed between a first film member 91a and a second film member 91b.

[0132] According to the third embodiment of this specification, among the plurality of first signal lines 92-1, 92-2, the first signal line 92-1 adjacent to one side (or the left side) edge of the film member 91 may be disposed at a first interval D1 from the end of one side edge of the film member 91. The plurality of first signal lines 92-1, 92-2 may be disposed at a second interval D2 from each other in the first direction (X). The first interval D1 may be the same as or less than the second interval D2, but the embodiments of this specification are not limited thereto. The first interval D1 can be set within a range where the first adhesive member 93a between the plurality of first signal lines 92-1, 92-2 and the first film member 91a can directly contact the second adhesive member 93b while covering the side surface of the first signal line 92-1. Or, the first interval D1 can be set within a range where the second adhesive member 93b between the plurality of first signal lines 92-1, 92-2 and the second film member 91b can directly contact the first adhesive member 93a while covering the side surface of the first signal line 92-1. The second interval D2 can prevent an electrical short circuit between the plurality of first signal lines 92-1, 92-2, and can be set within a range where the first adhesive member 93a can directly contact the second adhesive member 93b while covering the side surfaces of the plurality of first signal lines 92-1, 92-2. Or, the second interval D2 can prevent an electrical short circuit between the plurality of first signal lines 92-1, 92-2, and can be set within a range where the second adhesive member 93b can directly contact the first adhesive member 93a while covering the side surfaces of the plurality of first signal lines 92-1, 92-2. The direct contact between the first adhesive member 93a and the second adhesive member 93b can eliminate the need for soldering in this area.

[0133] According to the third embodiment of the present specification, among the plurality of second signal lines 92-3 and 92-4, the second signal line 92-4 adjacent to the other side (or the right side) edge of the film member 91 can be arranged at an interval the same as or different from the first interval D1 from the end of the other side edge of the film member 91. The plurality of second signal lines 92-3 and 92-4 can be arranged at a second interval D2 from each other in the first direction (X). The first interval D1 can be the same as or less than the second interval D2, but the embodiments of the present specification are not limited thereto. The first interval D1 can be set within a range where the first adhesive member 93a between the plurality of second signal lines 92-3 and 92-4 and the first film member 91a can directly contact the second adhesive member 93b while covering the side surface of the second signal line 92-4. Alternatively, the first interval D1 can be set within a range where the second adhesive member 93b between the plurality of second signal lines 92-3 and 92-4 and the second film member 91b can directly contact the first adhesive member 93a while covering the side surface of the second signal line 92-4. The second interval D2 can be set within a range where an electrical short circuit between the plurality of second signal lines 92-3 and 92-4 can be prevented and the first adhesive member 93a can directly contact the second adhesive member 93b while covering the side surfaces of the plurality of second signal lines 92-3 and 92-4. Alternatively, the second interval D2 can be set within a range where an electrical short circuit between the plurality of second signal lines 92-3 and 92-4 can be prevented and the second adhesive member 93b can directly contact the first adhesive member 93a while covering the side surfaces of the plurality of second signal lines 92-3 and 92-4.

[0134] According to the third embodiment of the present specification, among the plurality of first signal lines 92-1 and 92-2 and the plurality of second signal lines 92-3 and 92-4, the adjacent first signal line 92-2 and second signal line 92-3 can be arranged at a third interval D3 from each other in the first direction (X). The third interval D3 can be more than twice the first interval D1, but the embodiments of the present specification are not limited thereto.

[0135] The film member 91 according to the embodiment of the present specification can include a first extension 91c extending from a first film member 91a disposed on a first surface (or upper surface) of at least one first signal line 92a, and a second extension 91d extending from a second film member 91b disposed on a second surface (or lower surface) of at least one second signal line 92b.

[0136] According to the third embodiment of the present specification, each of the first extension 91c and the second extension 91d has a width W in a first direction (X), is spaced apart from each other at a fourth interval D4 in the first direction (X), and can extend side by side in a second direction (Y) intersecting the first direction (X). The first extension 91c and the second extension 91d can be disposed on a first surface (or upper surface) and a second surface (or lower surface) of the vibrating portion 10 of the vibrating portion 10. For example, the first extension 91c can be disposed on the first surface (or upper surface) of the vibrating portion 10, and the second extension 91d can be disposed on the second surface (or lower surface) of the vibrating portion 10. F1 The first extension 91c and the second extension 91d according to the embodiment of the present specification can include at least one adhesive member 93a, 93b. For example, the first extension 91c can include a first adhesive member 93a to which at least one first signal line 92a is coupled or adhered on a second surface (or lower surface) of the first extension 91c. Also, the second extension 91d can include a second adhesive member 93b to which at least one second signal line 92b is coupled or adhered on a first surface (or upper surface) of the second extension 91d.

[0137] The first extension 91c and the second extension 91d according to the embodiment of the present specification can include at least one adhesive member 93a, 93b. For example, the first extension 91c can include a first adhesive member 93a to which at least one first signal line 92a is coupled or adhered on a second surface (or lower surface) of the first extension 91c. Also, the second extension 91d can include a second adhesive member 93b to which at least one second signal line 92b is coupled or adhered on a first surface (or upper surface) of the second extension 91d.

[0138] The vibration device 3 according to the third embodiment of the present specification can further include conductive adhesive members 95a and 95b. The conductive adhesive members 95a and 95b can be disposed between the vibration unit 10 and any one of at least one first signal line 92a and at least one second signal line 92b. The conductive adhesive members 95a and 95b can include a first conductive adhesive member 95a disposed between at least one first signal line 92a and the first surface (or upper surface) of the vibration unit 10, and a second conductive adhesive member 95b disposed between at least one second signal line 92b and the second surface (or lower surface) of the vibration unit 10. For example, the first conductive adhesive member 95a and the second conductive adhesive member 95b can include an adhesive and a conductive substance capable of electrical connection.

[0139] According to the third embodiment of the present specification, the first extension portion 91c can be connected or coupled to the first surface (or upper surface) of at least one first signal line 92a via the first adhesive member 93a. The first adhesive member 93a can be disposed on the second surface (or lower surface) of the first extension portion 91c. The width W of the first adhesive member 93a A1 can be the same as or less than the width W of the first extension portion 91c, but the embodiments of the present specification are not limited thereto. For example, the first adhesive member 93a can be formed on the entire second surface of the first extension portion 91c. F1

[0140] According to the third embodiment of the present specification, the first extension portion 91c sandwiches at least one first signal line 92a via the first adhesive member 93a and is connected to or can be coupled to the first conductive adhesive member 95a disposed on the first surface (or upper surface) of the vibrating portion 10. The first adhesive member 93a covers at least one first signal line 92a and can be adjacent to the first surface (or upper surface) of the first conductive adhesive member 95a. For example, the first adhesive member 93a covers both side surfaces of at least one first signal line 92a and can be directly connected to or coupled to the first surface of the first conductive adhesive member 95a. At least one first signal line 92a disposed on the first extension portion 91c can be inserted (or accommodated) and fixed between the first extension portion 91c and the vibrating portion 10 by a film laminating process mediated by the first adhesive member 93a formed on the first extension portion 91c and the first conductive adhesive member 95a formed on the first surface of the vibrating portion 10. Thereby, at least one first signal line 92a can be maintained in a state of being electrically connected to the first electrode layer 13 of the vibrating portion 10 via the first conductive adhesive member 95a. According to the embodiment of the present specification, the first adhesive member 93a can be configured such that the adhesive area in contact with the vibrating portion 10, excluding at least one first signal line 92a, is 25% or more of the total area of the first adhesive member 93a, but the embodiment of the present specification is not limited thereto. For example, the adhesive area can be configured to be 30% or more, 35% or more, 40% or more, 45% or more, or 50% or more. Also, the width W A5 of the first conductive adhesive member 95a can be the same as or greater than the width W A1 of the first adhesive member 93a, but the embodiment of the present specification is not limited thereto.

[0141] At least one first signal line 92a according to the third embodiment of the present specification can include a plurality of first signal lines 92-1, 92-2. The plurality of first signal lines 92-1, 92-2 are spaced apart from each other in the first direction (X) and can be disposed on the second surface (or lower surface) of the first extension portion 91c in the second direction (Y) (or side by side) intersecting the first direction (X). Each of the plurality of first signal lines 92-1, 92-2 has a width W parallel to the first direction (X) LIt can have and be arranged separately from each other at a second interval D2.

[0142] According to the third embodiment of the present specification, among the plurality of first signal lines 92-1 and 92-2, the first signal line 92-1 adjacent to one side (or the left side) edge of the first extension portion 91c can be arranged at a first interval D1 from the end of one side edge of the first extension portion 91c. Also, among the plurality of first signal lines 92-1 and 92-2, the first signal line 92-2 adjacent to the other side (or the right side) edge of the first extension portion 91c can be arranged at an interval the same as or different from the first interval D1 from the end of the other side edge of the first extension portion 91c. The first interval D1 can be the same as or less than the second interval D2, but the embodiments of the present specification are not limited thereto. The first interval D1 and the second interval D2 can be set within a range where the first adhesive member 93a between the plurality of first signal lines 92-1 and 92-2 and the first extension portion 91c can be directly adjacent to the first conductive adhesive member 95a arranged on the first surface (or the upper surface) of the vibrating portion 10 while covering the side surfaces of the plurality of first signal lines 92-1 and 92-2 respectively. According to the embodiments of the present specification, the first adhesive member 93a can be configured such that, except for the plurality of first signal lines 92-1 and 92-2, the adhesive area in contact with the first conductive adhesive member 95a is 25% or more of the total area of the first adhesive member 93a. For example, the adhesive area can be configured to be 30% or more, 35% or more, 40% or more, 45% or more, or 50% or more. For example, the first adhesive member 93a can configure the adhesive area according to the widths of the plurality of first signal lines 92-1 and 92-2.

[0143] According to the third embodiment of the present specification, among the plurality of first signal lines 92-1 and 92-2 arranged in the first extension portion 91c, the first signal line 92-1 adjacent to one side (or the left side) edge of the first conductive adhesive member 95a can be arranged at a distance of the ninth interval D9 from the end of one side edge of the first conductive adhesive member 95a. Also, among the plurality of first signal lines 92-1 and 92-2 arranged in the first extension portion 91c, the first signal line 92-2 adjacent to the other side (or the right side) edge of the first conductive adhesive member 95a can be arranged at a distance that is the same as or different from the ninth interval D9 from the end of the other side edge of the first conductive adhesive member 95a.

[0144] According to the third embodiment of the present specification, the second extension portion 91d can be connected or joined to the second surface (or the lower surface) of at least one second signal line 92b via the second adhesive member 93b. The second adhesive member 93b can be arranged on the first surface (or the upper surface) of the second extension portion 91d. The width W of the second adhesive member 93b A1 can be the same as or less than the width W of the second extension portion 91d, but the embodiments of the present specification are not limited thereto. For example, the second adhesive member 93b can be formed over the entire first surface of the second extension portion 91d. F1

[0145] According to the third embodiment of the present specification, the second extension portion 91d can be connected or coupled to a second conductive adhesive member 95b disposed on the second surface (or lower surface) of the vibrating portion 10 with at least one second signal line 92b interposed therebetween via a second adhesive member 93b. The second adhesive member 93b can be adjacent to the second surface (or lower surface) of the second conductive adhesive member 95b while covering at least one second signal line 92b. For example, the second adhesive member 93b can be directly connected or coupled to the second surface of the second conductive adhesive member 95b while covering both side surfaces of at least one second signal line 92b. At least one second signal line 92b disposed on the second extension portion 91d can be inserted (or accommodated) and fixed between the second extension portion 91d and the vibrating portion 10 by a film lamination process mediated by the second adhesive member 93b formed on the second extension portion 91d and the second conductive adhesive member 95b formed on the second surface of the vibrating portion 10. Thereby, at least one second signal line 92b can be maintained in a state of being electrically connected to the second electrode layer 15 of the vibrating portion 10 via the second conductive adhesive member 95b. According to the embodiment of the present specification, the second adhesive member 93b can be configured such that the adhesive area in contact with the vibrating portion 10, excluding at least one second signal line 92b, is 25% or more of the total area of the second adhesive member 93b, but the embodiment of the present specification is not limited thereto. For example, the adhesive area can be configured to be 30% or more, 35% or more, 40% or more, 45% or more, or 50% or more. Also, the width W A5 of the second conductive adhesive member 95b can be the same as or greater than the width W A1 of the second adhesive member 93b, but the embodiment of the present specification is not limited thereto.

[0146] At least one second signal line 92b according to the third embodiment of the present specification can include a plurality of second signal lines 92-3, 92-4. The plurality of second signal lines 92-3, 92-4 can be spaced apart from each other in the first direction (X) and disposed on the first surface (or upper surface) of the second extension portion 91d in the second direction (Y) (or side by side) intersecting the first direction (X). Each of the plurality of second signal lines 92-3, 92-4 has a width W parallel to the first direction (X) LIt can be arranged at intervals that are the same as or different from the second interval D2 and spaced apart from each other.

[0147] According to the third embodiment of the present specification, among the plurality of second signal lines 92-3 and 92-4, the second signal line 92-3 adjacent to one side (or the left side) edge of the second extension 91d can be arranged at an interval that is the same as or different from the first interval D1 from the end of one side edge of the second extension 91d. Also, among the plurality of second signal lines 92-3 and 92-4, the second signal line 92-4 adjacent to the other side (or the right side) edge of the second extension 91d can be arranged at an interval of the first interval D1 from the end of the other side edge of the second extension 91d. The first interval D1 can be the same as or less than the second interval D2, but the embodiments of the present specification are not limited thereto. The first interval D1 and the second interval D2 can be set within a range where the second adhesive member 93b between the plurality of second signal lines 92-3 and 92-4 and the second extension 91d can be directly adjacent to the second conductive adhesive member 95b arranged on the second surface (or the lower surface) of the vibrating part 10 while covering the side surfaces of each of the plurality of second signal lines 92-3 and 92-4. According to the embodiments of the present specification, the second adhesive member 93b can be configured such that, except for the plurality of second signal lines 92-3 and 92-4, the adhesive area in contact with the second conductive adhesive member 95b is 25% or more of the total area of the second adhesive member 93b. For example, the adhesive area can be configured to be 30% or more, 35% or more, 40% or more, 45% or more, or 50% or more. For example, the second adhesive member 93b can configure the adhesive area according to the widths of the plurality of second signal lines 92-3 and 92-4.

[0148] According to the third embodiment of this specification, among the plurality of second signal lines 92-3 and 92-4 arranged on the second extension portion 91d, the second signal line 92-3 adjacent to one side (or the left side) edge of the second conductive adhesive member 95b can be arranged at a distance of the ninth interval D9 from the end of one side edge of the second conductive adhesive member 95b. Also, among the plurality of second signal lines 92-3 and 92-4 arranged on the second extension portion 91d, the second signal line 92-4 adjacent to the other side (or the right side) edge of the second conductive adhesive member 95b can be arranged at a distance that is the same as or different from the ninth interval D9 from the end of the other side edge of the second conductive adhesive member 95b.

[0149] For the vibration device 3 or the vibration unit 10 according to another embodiment of this specification, either one of the first cover member 30 and the second cover member 50 can be omitted. For example, the second cover member 50 among the first cover member 30 and the second cover member 50 can be omitted. When the second cover member 50 is omitted, the second surface (or the lower surface) of the vibration unit 10 is covered or surrounded by the adhesive layer 40 or the second adhesive layer 42, whereby the second surface of the vibration unit 10 can be covered or protected by the adhesive layer 40 or the second adhesive layer 42. When the second cover member 50 is omitted, the first cover member 30 can be a cover member, a cover film, a protection member, or a protection film, but the embodiments of this specification are not limited thereto.

[0150] In the vibration device 3 according to the third embodiment of the present specification, each of the first extension portion 91c and the second extension portion 91d of the signal cable 90 inserted (or accommodated) between the first cover member 30 and the second cover member 50 can be disposed on the first surface (or upper surface) and the second surface (or lower surface) of the vibration portion 10 so as to be displaced from each other with the vibration portion 10 interposed therebetween. At least one first signal line 92a disposed on the first extension portion 91c is electrically connected to the first electrode layer 13 of the vibration portion 10 via the first conductive adhesive member 95a, and the first adhesive member 93a surrounds at least one first signal line 92a and can be directly connected or coupled to the first surface of the first conductive adhesive member 95a. Also, at least one second signal line 92b disposed on the second extension portion 91d is electrically connected to the second electrode layer 15 of the vibration portion 10 via the second conductive adhesive member 95b, and the second adhesive member 93b surrounds at least one second signal line 92b and can be directly connected or coupled to the second surface of the second conductive adhesive member 95b. Thereby, at least one first signal line 92a and at least one second signal line 92b are electrically connected by the first conductive adhesive member 95a and the second conductive adhesive member 95b, respectively, and are firmly fixed by the first adhesive member 93a and the second adhesive member 93b, respectively, so that it is possible to prevent a poor contact between the vibration portion 10 and the signal cable 90 due to the floating of the signal cable 90. Further, in the vibration device 3 according to the third embodiment of the present specification, at least one first signal line 92a and at least one second signal line 92b are firmly fixed by the first conductive adhesive member 95a and the second conductive adhesive member 95b, and a soldering process for electrical connection between the vibration portion 10 and the signal cable 90 is not required, so that the structure and manufacturing process of the vibration device 3 can be simplified.

[0151] FIG. 11 is a perspective view showing a vibration layer of a vibration portion according to an embodiment of the present specification. FIG. 11 is a view showing the vibration layer shown in FIGS. 1, 3 to 5, and 7 to 10.

[0152] Referring to FIG. 11, the vibration layer 11 according to other embodiments of the present specification may include a plurality of first portions 11a and a plurality of second portions 11b. For example, the plurality of first portions 11a and the plurality of second portions 11b may be alternately and repeatedly arranged in the first direction (X) (or the second direction (Y)). For example, the first direction (X) may be the lateral direction of the vibration layer 11, and the second direction (Y) may be the longitudinal direction of the vibration layer 11 intersecting the first direction (X), but is not limited thereto. The first direction (X) may be the longitudinal direction of the vibration layer 11, and the second direction (Y) may be the lateral direction of the vibration layer 11. For example, the first direction (X) in FIG. 11 may be different from the first direction (X) in FIGS. 1 to 10, and / or the second direction (Y) in FIG. 11 may be different from the second direction (Y) in FIGS. 1 to 10.

[0153] Each of the plurality of first portions 11a may be composed of an inorganic material portion. The inorganic material portion may include a piezoelectric material having a piezoelectric effect, a composite piezoelectric material, or an electroactive material.

[0154] Each of the plurality of first portions 11 may be made of a ceramic-based material capable of realizing relatively strong vibration or a piezoelectric ceramic having a perovskite crystal structure. The perovskite crystal structure may have a piezoelectric and inverse piezoelectric effect and may have an oriented structure. The perovskite crystal structure is represented by the chemical formula ABO 3 where the A site may be composed of a divalent metal element and the B site may be composed of a tetravalent metal element. As an example in the present specification, in the chemical formula ABO 3 the A site and the B site may be cations, and O may be an anion. For example, each of the plurality of first portions 11a may include at least one of PbTiO 3 , PbZrO 3 , PbZrTiO 3 , BaTiO 3 , and SrTiO 3 , but the examples in the present specification are not limited thereto.

[0155] Each of the plurality of first portions 11a according to an embodiment of the present specification is disposed between the plurality of second portions 11b, has a first width W1 parallel to the first direction X (or the second direction Y), and may have a length parallel to the second direction Y (or the first direction X). Each of the plurality of second portions 11b has a second width W2 parallel to the first direction X (or the second direction Y) and may have a length parallel to the second direction Y (or the first direction X). The first width W1 may be the same as or different from the second width W2. For example, the first width W1 may be larger than the second width W2, but the embodiments of the present specification are not limited thereto. For example, the first portion 11a and the second portion 11b may have a line shape or a stripe shape of the same or different sizes from each other, but the embodiments of the present specification are not limited thereto. Other shapes such as a zigzag shape and an irregular shape are also possible. Therefore, the vibration layer 11 may have a resonance frequency of 20 kHz or less by having a 2-2 composite structure having piezoelectric characteristics of a 2-2 vibration mode, but the embodiments of the present specification are not limited thereto. For example, the resonance frequency of the vibration layer 11 can be changed by at least one of the shape, length, and thickness of the vibration layer 11, etc.

[0156] In the vibration layer 11, each of the plurality of first portions 11a and the plurality of second portions 11b can be arranged (or arrayed) parallel to each other in the same plane (or the same layer). Each of the plurality of second portions 11b is configured to fill the gap between two adjacent first portions 11a, and thus can be connected or adhered to the adjacent first portions 11a. Thereby, the vibration layer 11 can be extended to a desired size or length by the side surface coupling (or connection) of the first portion 11a and the second portion 11b.

[0157] In the vibration layer 11, the width W2 of each of the plurality of second portions 11b may gradually decrease from the middle portion of the vibration layer 11 or the vibration devices 1, 2, 3 toward both end portions (or both ends).

[0158] According to the embodiments of this specification, among the plurality of second portions 11b, the second portion 11b having the maximum width W2 may be located at the portion where the maximum stress is concentrated when the vibration layer 11 or the vibration devices 1, 2, and 3 vibrate in the vertical direction (Z) (or the thickness direction). Among the plurality of second portions 11b, the second portion 11b having the minimum width W2 may be located at the portion where the relatively smallest stress is generated when the vibration layer 11 or the vibration devices 1, 2, and 3 vibrate in the vertical direction (Z). For example, among the plurality of second portions 11b, the second portion 11b having the maximum width W2 may be disposed in the middle portion of the vibration layer 11, and the second portion 11b having the minimum width W2 among the plurality of second portions 11b may be disposed at both end portions of the vibration layer 11. Thereby, when the vibration layer 11 or the vibration devices 1, 2, and 3 vibrate in the vertical direction (Z), the interference of sound waves or the overlapping of resonance frequencies generated at the portion where the maximum stress is concentrated (for example, the portion where the interference between signals due to the overlapping of resonance frequencies different from each other is the largest) can be minimized, whereby the sound pressure drop (dip) phenomenon occurring in the low frequency band (for example, 3 kHz or less) can be improved, and the flatness of the acoustic characteristics in the low frequency band can be improved. For example, the sound pressure drop (dip) may be a phenomenon in which the sound pressure level becomes low at a specific frequency. Also, the flatness of the acoustic characteristics may be the level of the deviation between the highest sound pressure level and the lowest sound pressure level over all frequencies (for example, the peak-to-peak flatness increases, or the peak-to-peak deviation decreases).

[0159] In the vibration layer 11, each of the plurality of first portions 11a may have a different size (or width) from each other. For example, the size (or width) of each of the plurality of first portions 11a may gradually decrease or increase from the middle portion to both end portions (or both ends) of the vibration layer 11 or the vibration devices 1, 2, and 3. In this case, the sound pressure characteristics of the sound can be improved by the various natural vibration frequencies caused by the vibrations of the plurality of first portions 11a having different sizes in the vibration layer 11, and the reproduction band of the sound can be expanded. The embodiments of this specification are not limited thereto.

[0160] Each of the plurality of second portions 11b can be disposed between the plurality of first portions 11a. Thus, in the vibration layer 11 or the vibration devices 1, 2, 3, the vibration energy due to the links within the unit cell of the first portion 11a can be increased by the second portion 11b, so that the vibration characteristics (or displacement characteristics) of the vibration layer 11 can be increased, and the flexibility of the vibration layer 11 can be ensured. For example, the second portion 11b can be one or more of an epoxy-based polymer, an acrylic-based polymer, and a silicone-based polymer, but the embodiments of this specification are not limited thereto.

[0161] Each of the plurality of second portions 11b according to the embodiments of this specification can be composed of an organic material portion. For example, by arranging the organic material portions between each of the inorganic material portions, the impact applied to the inorganic material portion (or the first portion) can be absorbed, the stress concentrated on the inorganic material portion can be released, the durability of the vibration layer 11 or the vibration devices 1, 2, 3 can be improved, and flexibility can be provided to the vibration layer 11 or the vibration devices 1, 2, 3. Thereby, since the vibration devices 1, 2, 3 have flexibility, they can be bent into a shape that matches the shape of the curved surface portion of the vibrating member or the manually vibrating member. For example, since the vibration devices 1, 2, 3 have flexibility, they can be arranged along the shape of the curved surface portion of the vibrating member or the manually vibrating member.

[0162] The second portion 11b according to the embodiments of this specification can have a lower modulus and viscoelasticity than the first portion 11a. Thus, the reliability of the first portion 11a, which is vulnerable to impact due to the brittle characteristics of the first portion 11a, can be improved. For example, the second portion 11b can be composed of a material having a loss factor of 0.01 to 1 and a modulus of 0.1 to 10 GPa (GigaPascal).

[0163] The organic material part configured in the second part 11b can include an organic material, an organic polymer, an organic piezoelectric material, or an organic non-piezoelectric material having flexible characteristics compared to the inorganic material part which is the first part 11a. For example, the second part 11b can be said to be an adhesive part, a stretchable part, a bending part, a damping part, or a soft part having flexibility, but the embodiments in this specification are not limited thereto.

[0164] According to this embodiment, the vibration layer 11 can have a single thin film shape when a plurality of first parts 11a and second parts 11b are arranged (or connected) in the same plane. For example, the vibration layer 11 can have a structure in which a plurality of first parts 11a are connected on one side. For example, the plurality of first parts 11a can have a structure connected throughout the vibration layer 11. For example, the vibration layer 11 can vibrate vertically by the first part 11a having vibration characteristics and can be bent into a curved surface shape by the second part 11b having flexibility. Also, in the vibration layer 11 according to this embodiment, the size of the first part 11a and the size of the second part 11b can be set according to the piezoelectric characteristics and flexibility required for the vibration layer 11 or the vibration devices 1, 2, 3. According to an embodiment of this specification, in the case of the vibration layer 11 that requires piezoelectric characteristics rather than flexibility, the size of the first part 11a can be configured to be larger than the size of the second part 11b. According to another embodiment of this specification, in the case of the vibration layer 11 that requires flexibility rather than piezoelectric characteristics, the size of the second part 11b can be configured to be larger than the size of the first part 11a. Therefore, since the size of the vibration layer 11 can be adjusted according to the required characteristics, there is an advantage that the design of the vibration layer 11 is easy.

[0165] The first electrode layer 13 can be disposed on the first surface (or upper surface) of the vibrating layer 11. The first electrode layer 13 can be commonly disposed or coupled to the first surface of each of the plurality of first portions 11a and the first surface of each of the plurality of second portions 11b, and can be electrically connected to the first surface of each of the plurality of first portions 11a. For example, the first electrode layer 13 can have the shape of a single electrode (or one electrode) disposed over the entire first surface of the vibrating layer 11. For example, the first electrode layer 13 can have substantially the same shape as the vibrating layer 11, but the embodiments herein are not limited thereto.

[0166] The second electrode layer 15 can be disposed on a second surface (or back surface) different from (or opposite to) the first surface of the vibrating layer 11. The second electrode layer 15 can be commonly disposed or coupled to the second surface of each of the plurality of first portions 11a and the second surface of each of the plurality of second portions 11b, and can be electrically connected to the second surface of each of the plurality of first portions 11a. For example, the second electrode layer 15 can have the shape of a single electrode (or one electrode) disposed over the entire second surface of the vibrating layer 11. For example, the second electrode layer 15 can have the same shape as the vibrating layer 11, but the embodiments herein are not limited thereto.

[0167] One or more of the first electrode layer 13 and the second electrode layer 15 according to an embodiment herein can be made of a transparent conductive material, a translucent conductive material, or an opaque conductive material. For example, the transparent or translucent conductive material can include ITO (indium tin oxide) or IZO (indium zinc oxide), but the embodiments herein are not limited thereto. The opaque conductive material can include aluminum (Al), copper (Cu), gold (Au), silver (Ag), molybdenum (Mo), or magnesium (Mg), etc., or can be made of an alloy thereof, but the embodiments herein are not limited thereto.

[0168] The vibration layer 11 can be polarized by a constant voltage applied to the first electrode layer 13 and the second electrode layer 15 in a constant temperature atmosphere or a temperature atmosphere that changes from high temperature to normal temperature, but the embodiments of this specification are not limited thereto. For example, the vibration layer 11 can vibrate by alternately repeating contraction and / or expansion due to the inverse piezoelectric effect of an acoustic signal (or voice signal) externally applied to the first electrode layer 13 and the second electrode layer 15. For example, the vibration layer 11 can vibrate by vertical vibration and planar vibration by the first electrode layer 13 and the second electrode layer 15. The vibration layer 11 can increase the displacement of the vibration member by contraction and / or expansion in the planar direction, and thus can further improve the vibration.

[0169] FIG. 12 is a perspective view showing another embodiment of the vibration layer shown in FIG. 11 according to an embodiment of this specification.

[0170] Referring to FIG. 12, the vibration layer 11 according to another embodiment of this specification can include a plurality of first portions 11a spaced apart from each other along a first direction X and a second direction Y, and a second portion 11b disposed between the plurality of first portions 11a.

[0171] Each of the plurality of first portions 11a can be disposed spaced apart from each other along each of the first direction X and the second direction Y. For example, each of the plurality of first portions 11a can have a hexahedral shape having the same size as each other and can be arranged in a lattice. Since each of the plurality of first portions 11a is substantially the same as the first portion 11a described with reference to FIG. 11, the same drawing reference numerals are assigned thereto, and the duplicate description thereof is omitted or simplified.

[0172] The second part 11b can be arranged between a plurality of first parts 11a along each of the first direction X and the second direction Y. The second part 11b can be connected or adhered to the adjacent first part 11a by filling the gap between two adjacent first parts 11a or surrounding each of the plurality of first parts 11a or being configured adjacent thereto. According to the embodiments herein, the width of the second part 11b arranged between two adjacent first parts 11a along the first direction X may be the same as or different from the width of the first part 11a, and the width of the second part 11b arranged between two adjacent first parts 11a along the second direction Y may be the same as or different from the width of the first part 11a. Since the second part 11b is substantially the same as the second part 11b described with reference to FIG. 11, the same drawing reference numerals are assigned thereto, and the duplicate description thereof is omitted or simplified.

[0173] According to other embodiments herein, the vibrating layer 11 may have a resonance frequency of 30 MHz or less by having a 1-3 composite structure having piezoelectric properties in 1-3 vibration modes, but the embodiments herein are not limited thereto. For example, the resonance frequency of the vibrating layer 11 can be changed by at least one of the shape, length, and thickness of the vibrating layer 11.

[0174] FIG. 13 is a perspective view showing another embodiment of the vibrating layer shown in FIG. 11 according to the embodiment herein.

[0175] Referring to FIG. 13, the vibrating layer 11 according to another embodiment herein can include a plurality of first parts 11a spaced apart from each other along the first direction X and the second direction Y, and a second part 11b arranged between the plurality of first parts 11a.

[0176] Each of the plurality of first portions 11a may have a circular planar structure. For example, each of the plurality of first portions 11a may have a disc shape, but the embodiments of this specification are not limited thereto. For example, each of the plurality of first portions 11a may have a point shape including an elliptical shape, a polygonal shape, or a donut shape. Since each of the plurality of first portions 11a is substantially the same as the first portion 11a described with reference to FIG. 11, the same drawing reference numerals are given thereto, and duplicate descriptions thereof are omitted or simplified.

[0177] The second portion 11b may be disposed between the plurality of first portions 11a along each of the first direction X and the second direction Y. The second portion 11b may be connected or adhered to the side surfaces of each of the plurality of first portions 11a by surrounding or being adjacent to each of the plurality of first portions 11a. Each of the plurality of first portions 11a and the second portion 11b may be arranged (or arrayed) with respect to each other in the same plane (or the same layer). Since the second portion 11b is substantially the same as the second portion 11b described with reference to FIG. 11, the same drawing reference numerals are given thereto, and duplicate descriptions thereof are omitted or simplified.

[0178] FIG. 14 is a perspective view showing another embodiment of the vibrating layer shown in FIG. 11 according to an embodiment of this specification.

[0179] Referring to FIG. 14, a vibrating layer 11 according to another embodiment of this specification may include a plurality of first portions 11a spaced apart from each other along a first direction X and a second direction Y, and a second portion 11b disposed between the plurality of first portions 11a.

[0180] Each of the plurality of first portions 11a may have a triangular or triangular plate-shaped planar structure. For example, each of the plurality of first portions 11a may have a triangular plate shape. Since each of the plurality of first portions 11a is substantially the same as the first portion 11a described with reference to FIG. 11, the same drawing reference numerals are given thereto, and duplicate descriptions thereof are omitted.

[0181] According to the embodiments of this specification, four adjacent first portions 11a among a plurality of first portions 11a may be arranged adjacent to each other so as to form a quadrilateral (or a square). Each vertex of the four adjacent first portions 11a forming the quadrilateral may be arranged adjacent to the central portion (or the exact center) of the quadrilateral.

[0182] The second portion 11b may be arranged between a plurality of first portions 11a along each of the first direction X and the second direction Y. The second portion 11b may be connected or adhered to the side surfaces of each of the plurality of first portions 11a by surrounding or being adjacent to each of the plurality of first portions 11a. Each of the plurality of first portions 11a and the second portion 11b may be arranged (or arrayed) parallel to each other in the same plane (or the same layer). Since the second portion 11b is substantially the same as the second portion 11b described with reference to FIG. 11, the same drawing reference numeral is assigned thereto, and the duplicate description thereof is omitted or simplified.

[0183] According to other embodiments of this specification, 2N (N is a natural number greater than or equal to 2) adjacent first portions 11a among a plurality of first portions 11a having triangles may be arranged adjacent to each other so as to form a 2N-sided polygon. For example, six adjacent first portions 11a among a plurality of first portions 11a may be arranged adjacent to each other so as to form a hexagon (or a regular hexagon). Each vertex of the six adjacent first portions 11a forming the hexagon may be arranged adjacent to the central portion (or the exact center) of the hexagon. The second portion 11b may be connected or adhered to the side surfaces of each of the plurality of first portions 11a by surrounding or being adjacent to each of the plurality of first portions 11a.

[0184] FIGS. 15 to 17 are perspective views showing a vibrating portion according to other embodiments of this specification. FIGS. 15 to 17 are views showing the vibrating devices 1, 2, and 3 described with reference to FIGS. 1 to 10.

[0185] Referring to FIG. 15, the vibration devices 1, 2, 3 according to other embodiments of the present specification can include two or more vibration parts 10-1, 10-2. For example, the vibration devices 1, 2, 3 can include a first vibration part 10-1 and a second vibration part 10-2.

[0186] The first vibration part 10-1 and the second vibration part 10-2 can overlap or be stacked on each other. For example, the first vibration part 10-1 and the second vibration part 10-2 can overlap or be stacked on each other so as to be displaced (or driven or vibrated) in the same direction with respect to each other so as to maximize the amplitude displacement of the vibration devices 1, 2, 3 and / or the amplitude displacement of the vibration member (or manual vibration member), but the embodiments of the present specification are not limited thereto. For example, the first vibration part 10-1 and the second vibration part 10-2 can have substantially the same size as each other, but the embodiments of the present specification are not limited thereto. For example, the first vibration part 10-1 and the second vibration part 10-2 can have substantially the same size as each other within the error range in the manufacturing process, but the embodiments of the present specification are not limited thereto. For example, the first vibration part 10-1 and the second vibration part 10-2 can have different sizes from each other. Thereby, the first vibration part 10-1 and the second vibration part 10-2 can maximize the amplitude displacement of the vibration devices 1, 2, 3 and / or the amplitude displacement of the vibration member (or manual vibration member).

[0187] Since each of the first vibration part 10-1 and the second vibration part 10-2 is the same as or substantially the same as the vibration part 10 described with reference to FIGS. 1 to 14, the same drawing reference numerals are given thereto, and the duplicate description thereof is omitted.

[0188] Each of the first vibrating part 10-1 and the second vibrating part 10-2 can include a first cover member 30 and a second cover member 50. For example, each of the first vibrating part 10-1 and the second vibrating part 10-2 can be arranged between the first cover member 30 and the second cover member 50. For example, the first surface (or upper surface) of each of the first vibrating part 10-1 and the second vibrating part 10-2 is covered or protected by the first cover member 30, and the second surface (or lower surface) of each of the first vibrating part 10-1 and the second vibrating part 10-2 can be covered or protected by the second cover member 50.

[0189] The vibration devices 1, 2, 3 according to other embodiments of the present specification can further include a connection and adhesion member 45.

[0190] The connection and adhesion member 45 can be arranged or connected between the first vibrating part 10-1 and the second vibrating part 10-2. For example, the connection and adhesion member 45 can be arranged or connected between the second cover member 50 of the first vibrating part 10-1 and the first cover member 30 of the second vibrating part 10-2. For example, the connection and adhesion member 45 can be an adhesion member or a connection member, but the embodiments of the present specification are not limited thereto.

[0191] The connection and adhesion member 45 can be made of a material including an adhesive layer excellent in adhesion or adhesive force to each of the first vibration part 10-1 and the second vibration part 10-2. For example, the connection and adhesion member 45 can include a foam pad, a double-sided tape, an adhesive, etc., but the embodiments of this specification are not limited thereto. For example, the adhesive layer of the connection and adhesion member 45 can include epoxy, acryl, silicone, urethane, an acrylic polymer, a silicone polymer, a urethane polymer, etc., but the embodiments of this specification are not limited thereto. For example, the adhesive layer of the connection and adhesion member 45 can include a urethane-based substance (or material) having relatively soft characteristics. Thereby, vibration loss due to displacement interference between the first vibration part 10-1 and the second vibration part 10-2 is minimized or each of the first vibration part 10-1 and the second vibration part 10-2 can be displaced (or vibrated or driven) freely.

[0192] The vibration devices 1, 2, and 3 according to other embodiments of this specification include the first vibration part 10-1 and the second vibration part 10-2 laminated (or overlapped or superposed) so as to vibrate (or displace or drive) in the same direction as each other, whereby the displacement amount or the amplitude displacement can be maximized or increased, and thus the displacement amount (or bending force or driving force) or the amplitude displacement of the vibration member (or manual vibration member) can be maximized or increased.

[0193] Referring to FIG. 16, the vibration devices 1, 2, and 3 according to other embodiments of this specification can include two or more vibration parts 10-1, 10-2. For example, the vibration devices 1, 2, and 3 can include the first vibration part 10-1 and the second vibration part 10-2.

[0194] Since each of the first vibration part 10-1 and the second vibration part 10-2 is the same as or substantially the same as the vibration part 10 described with reference to FIGS. 1 to 14, the same drawing reference numerals are given thereto, and duplicate description thereof is omitted.

[0195] Each of the first vibration part 10-1 and the second vibration part 10-2 can include at least one of the first cover member 30 and the second cover member 50. For example, each of the first vibration part 10-1 and the second vibration part 10-2 can omit at least one of the first cover member 30 and the second cover member 50.

[0196] The first vibration part 10-1 can omit the second cover member 50 and include only the first cover member 30. The first surface of the first vibration part 10-1 can be connected or joined to the first cover member 30 via the first adhesive layer 41. And the second surface (or the lower surface) of the first vibration part 10-1 can be exposed to the outside without the second cover member 50 being arranged.

[0197] The second vibration part 10-2 can omit the first cover member 30 and include only the second cover member 50. The second surface of the second vibration part 10-2 can be connected or joined to the second cover member 50 via the second adhesive layer 42. And the first surface (or the upper surface) of the second vibration part 10-2 can be exposed to the outside without the first cover member 30 being arranged.

[0198] The vibration devices 1, 2, and 3 according to other embodiments of this specification can further include a connection adhesive member 45.

[0199] The connection adhesive member 45 can be arranged or connected between the first vibration part 10-1 and the second vibration part 10-2. For example, the connection adhesive member 45 can be arranged or connected between the second surface (or the lower surface) of the first vibration part 10-1 and the first surface (or the upper surface) of the second vibration part 10-2. For example, the connection adhesive member 45 can be an adhesive member or a connection member, but the embodiments of this specification are not limited thereto.

[0200] The second surface (or the lower surface) of the first vibration part 10-1 can be covered or surrounded by the connection adhesive member 45. Thereby, the second surface (or the lower surface) of the first vibration part 10-1 can be covered or protected by the connection adhesive member 45 and can be connected or joined to the second vibration part 10-2.

[0201] The first surface (or upper surface) of the second vibrating part 10-2 can be covered or surrounded by the connection and adhesion member 45. Thereby, the first surface (or upper surface) of the second vibrating part 10-2 is covered or protected by the connection and adhesion member 45 and can be connected or coupled to the first vibrating part 10-1.

[0202] The connection and adhesion member 45 can be made of a material including an adhesive layer having excellent adhesion or adhesive force to each of the first vibrating part 10-1 and the second vibrating part 10-2. For example, the connection and adhesion member 45 can include a foam pad, a double-sided tape, an adhesive, etc., but the embodiments of this specification are not limited thereto. For example, the adhesive layer of the connection and adhesion member 45 can include epoxy, acryl, silicone, urethane, an acrylic polymer, a silicone polymer, a urethane polymer, etc., but the embodiments of this specification are not limited thereto. For example, the adhesive layer of the connection and adhesion member 45 can include a urethane-based substance (or material) having relatively soft characteristics. Thereby, the vibration loss due to displacement interference between the first vibrating part 10-1 and the second vibrating part 10-2 can be minimized or each of the first vibrating part 10-1 and the second vibrating part 10-2 can freely displace (or vibrate or drive).

[0203] The vibration devices 1, 2, 3 according to other embodiments of this specification include the first vibrating part 10-1 and the second vibrating part 10-2 that are laminated (or overlapped or superposed) so as to vibrate (or displace or drive) in the same direction as each other, whereby the displacement amount or the amplitude displacement can be maximized or increased. Therefore, the displacement amount (or bending force or driving force) or the amplitude displacement of the vibrating member (or manual vibrating member) can be maximized or increased.

[0204] Referring to FIG. 17, the vibration devices 1, 2, 3 according to other embodiments of the present specification can include two or more vibration parts 10-1, 10-2. For example, the vibration devices 1, 2, 3 can include a first vibration part 10-1 and a second vibration part 10-2.

[0205] Since each of the first vibration part 10-1 and the second vibration part 10-2 is the same as or substantially the same as the vibration part 10 described with reference to FIGS. 1 to 14, the same drawing reference numerals are given thereto, and duplicate description thereof is omitted.

[0206] Each of the first vibration part 10-1 and the second vibration part 10-2 can include at least one of the first cover member 30 and the second cover member 50. For example, each of the first vibration part 10-1 and the second vibration part 10-2 can omit at least one of the first cover member 30 and the second cover member 50.

[0207] Omitting the second cover member 50, the first vibration part 10-1 can include only the first cover member 30. The first surface of the first vibration part 10-1 can be connected or joined to the first cover member 30 via the first adhesive layer 41. And the second surface (or lower surface) of the first vibration part 10-1 can be exposed to the outside without the second cover member 50 being disposed thereon.

[0208] Omitting the second cover member 50, the second vibration part 10-2 can include only the first cover member 30. The first surface of the second vibration part 10-2 can be connected or joined to the first cover member 30 via the first adhesive layer 41. And the second surface (or lower surface) of the second vibration part 10-2 can be exposed to the outside without the second cover member 50 being disposed thereon.

[0209] The vibration devices 1, 2, 3 according to other embodiments of the present specification can further include a first connection adhesive member 46 and a second connection adhesive member 47.

[0210] The first connection and bonding member 46 is disposed or connected to the second surface (or the lower surface) of the first vibrating portion 10-1, and the second connection and bonding member 47 can be disposed or connected to the second surface (or the lower surface) of the second vibrating portion 10-2. For example, the first connection and bonding member 46 can be disposed or connected between the second surface (or the lower surface) of the first vibrating portion 10-1 and the first cover member 30 of the second vibrating portion 10-2. The second connection and bonding member 47 can be disposed or connected to the second surface (or the lower surface) of the second vibrating portion 10-2. For example, the first connection and bonding member 46 and the second connection and bonding member 47 can be adhesive members or connection members, but the embodiments of this specification are not limited thereto.

[0211] The second surface (or the lower surface) of the first vibrating portion 10-1 can be covered or surrounded by the first connection and bonding member 46. Thereby, the second surface (or the lower surface) of the first vibrating portion 10-1 can be covered or protected by the first connection and bonding member 46 and can be connected or joined to the first surface of the second vibrating portion 10-2 or the first cover member 30. For example, the first connection and bonding member 46 can be made of the same material as the adhesive layer 40 or the second adhesive layer 42, but the embodiments of this specification are not limited thereto.

[0212] The second surface (or the lower surface) of the second vibrating portion 10-2 can be covered or surrounded by the second connection and bonding member 47. Thereby, the second surface (or the lower surface) of the second vibrating portion 10-2 can be covered or protected by the second connection and bonding member 47. For example, the second connection and bonding member 47 can be made of the same material as the adhesive layer 40 or the second adhesive layer 42, but the embodiments of this specification are not limited thereto.

[0213] Each of the first connection and bonding member 46 and the second connection and bonding member 47 may be made of a material including an adhesive layer excellent in adhesion or bonding force to each of the first vibrating part 10-1 and the second vibrating part 10-2. For example, each of the first connection and bonding member 46 and the second connection and bonding member 47 may include a foam pad, a double-sided tape, an adhesive, etc., but the embodiments of this specification are not limited thereto. For example, the adhesive layer of each of the first connection and bonding member 46 and the second connection and bonding member 47 may include epoxy, acryl, silicone, urethane, an acrylic polymer, a silicone polymer, a urethane polymer, etc., but the embodiments of this specification are not limited thereto. For example, the adhesive layer of each of the first connection and bonding member 46 and the second connection and bonding member 47 may include a urethane-based substance (or material) having relatively soft characteristics. Thereby, vibration loss due to displacement interference between the first vibrating part 10-1 and the second vibrating part 10-2 can be minimized or each of the first vibrating part 10-1 and the second vibrating part 10-2 can be displaced (or vibrated or driven) freely.

[0214] Vibrating devices 1, 2, and 3 according to other embodiments of this specification include the first vibrating part 10-1 and the second vibrating part 10-2 laminated (or overlapped or superposed) so as to vibrate (or displace or drive) in the same direction as each other, whereby the displacement amount or the amplitude displacement can be maximized or increased. Therefore, the displacement amount (or bending force or driving force) or the amplitude displacement of the vibrating member (or manual vibrating member) can be maximized or increased.

[0215] FIG. 18 is a diagram showing an apparatus according to an embodiment of this specification. FIG. 19a is a cross-sectional view of FIG. 18 taken along line H-H' according to an embodiment of this specification. FIG. 19b is a cross-sectional view of FIG. 18 taken along another line H-H' according to an embodiment of this specification related to FIG. 4b.

[0216] Referring to FIGS. 18 and 19a, an apparatus according to an embodiment of this specification may include a manual vibrating member 100 and one or more vibration generating devices 200.

[0217] The "device" according to the embodiments of this specification can be, for example, a display device, an audio device, an acoustic generating device, a soundbar, an analog signage, or a digital signage, etc., but the embodiments of this specification are not limited thereto.

[0218] The "display device" can include a display panel including a plurality of pixels for embodying black-and-white or color images, and a driving unit for driving the display panel. For example, the display panel can be a liquid crystal display panel, an organic light-emitting display panel, a light-emitting diode display panel, an electrophoretic display panel, an electro-wetting display panel, a micro light-emitting diode display panel, or a quantum dot light-emitting display panel, etc., but the embodiments of this specification are not limited thereto. For example, in an organic light-emitting display panel, a pixel can include an organic light-emitting element such as an organic light-emitting layer, and the pixel can be a sub-pixel for embodying any one of a plurality of colors constituting a color image. Thereby, the "device" according to the embodiments of this specification can also include a set electronic device or a set device such as a notebook computer, a television, a computer monitor, an electrical equipment apparatus including other forms of automotive apparatus or vehicle such as a vehicle-mounted or automotive device, a mobile electronic apparatus such as a smartphone or an electronic pad, etc., which are complete products or final products including a display panel such as a liquid crystal display panel or an organic light-emitting display panel.

[0219] Analog signage can be, for example, an advertising billboard, poster, or guideboard. Analog signage can include content such as text, pictures, and / or symbols. The content can be arranged so as to be visible on the side of the manual vibration member 100 of the device. The content can be directly attached to the manual vibration member 100, or a medium such as paper to which the content is attached by printing or the like can be attached to the manual vibration member 100, but the embodiments of this specification are not limited thereto.

[0220] The manual vibration member 100 can vibrate by the drive (or vibration) of one or more vibration generating devices 200. For example, the manual vibration member 100 can generate one or more of vibration and sound by the drive of one or more vibration generating devices 200.

[0221] The manual vibration member 100 according to an embodiment of this specification can be a display panel including a display unit (or screen) having a plurality of pixels for embodying black-and-white or color video. Thereby, the manual vibration member 100 can generate one or more of vibration and sound by the drive of one or more vibration generating devices 200. For example, the manual vibration member 100 can generate or output sound synchronized with the video on the display unit by vibrating by the drive of the vibration generating device 200 while displaying video on the display unit. The embodiments of this specification are not limited thereto. For example, the manual vibration member 100 can be a vibration object, display member, display panel, signage panel, manual vibration plate, front cover, front member, vibration panel, sound panel, manual vibration panel, sound output plate, sound vibration plate, or video screen, etc., but the embodiments of this specification are not limited thereto.

[0222] The manual vibration member 100 according to other embodiments of this specification may include a metallic material having material properties suitable for vibrating by one or more vibration generating devices 200 to output sound, or may include a non-metallic material (or a composite non-metallic material). For example, the manual vibration member 100 may include one or more materials among metal, plastic, paper, fiber, fabric, leather, glass, rubber, carbon, and mirror, but the embodiments of this specification are not limited thereto. For example, the manual vibration member 100 may be a vibration plate including one or more materials among metal, plastic, paper, fiber, fabric, leather, glass, rubber, carbon, and mirror. For example, the paper may be a speaker cone. For example, the paper cone may be pulp or foamed plastic, etc., but the embodiments of this specification are not limited thereto.

[0223] The manual vibration member 100 according to other embodiments of this specification may include a display panel having pixels for displaying an image or may include a non-display panel. For example, the manual vibration member 100 may include one or more of a display panel having pixels for displaying an image, a screen panel onto which an image is projected from a display device, a lighting panel, a signage panel, an interior material of a transportation means, an exterior material of a transportation means, a glass window of a transportation means, an interior material of a seat of a transportation means, a ceiling material of a transportation means, a ceiling material of a building, an interior material of a building, a glass window of a building, an interior material of an aircraft, a glass window of an aircraft, and a mirror, but the embodiments of this specification are not limited thereto. For example, the non-display panel may include a light emitting diode lighting panel (or device), an organic light emitting lighting panel (or device), or an inorganic light emitting lighting panel (or device), but the embodiments of this specification are not limited thereto.

[0224] One or more vibration generating devices 200 may be configured to vibrate the manual vibration member 100. One or more vibration generating devices 200 may be configured to be connected to the back surface 100a of the manual vibration member 100 via the connection member 150. Thereby, one or more vibration generating devices 200 can generate or output one or more of vibration and sound by vibrating the manual vibration member 100 due to the vibration of the manual vibration member 100.

[0225] One or more vibration generating devices 200 can include one or more of the vibration devices 1, 2, and 3 described with reference to FIGS. 1 to 17. Accordingly, the descriptions of the vibration devices 1, 2, and 3 shown in FIGS. 1 to 17 can be included in the description of the vibration generating device 200 shown in FIGS. 18 and 19a. Therefore, the same reference numerals are assigned thereto, and duplicate descriptions thereof are omitted.

[0226] The connecting member 150 can be disposed between at least a part of the vibration generating device 200 and at least a part of the manual vibration member 100. The connecting member 150 can be connected between at least a part of the vibration generating device 200 and at least a part of the manual vibration member 100. The connecting member 150 according to the embodiments of the present specification can be connected between the central portion of the vibration generating device 200 excluding the edge portion of the vibration generating device 200 and the manual vibration member 100. For example, the connecting member 150 can be connected between the central portion of the vibration generating device 200 and the manual vibration member 100 by a partial adhesion method. Since the central portion (or the exact center portion) of the vibration generating device 200 is the portion that becomes the center of vibration, the vibration of the vibration generating device 200 can be efficiently transmitted to the manual vibration member 100 via the connecting member 150. The edge portion of the vibration generating device 200 is not connected to the connecting member 150 and / or the manual vibration member 100 and is in a floating state separated from each of the connecting member 150 and the manual vibration member 100. Therefore, during the bending vibration (or bending vibration) of the vibration generating device 200, the vibration of the edge portion of the vibration generating device 200 is not suppressed (or reduced) by the connecting member 150 and / or the manual vibration member 100. Thus, the vibration amplitude (or displacement amplitude) of the vibration generating device 200 can be increased. Therefore, the vibration amplitude (or displacement amplitude) of the manual vibration member 100 due to the vibration of the vibration generating device 200 increases, and thus the acoustic characteristics and sound pressure characteristics in the low frequency band generated by the vibration of the manual vibration member 100 can be further improved. When the amplitude of the vibration of the vibration member is large, the sound pressure in the low frequency band can be increased, so the characteristics in the low frequency band can be improved. The embodiments of the present specification are not limited thereto. For example, the connecting member 150 can be connected between the manual vibration member 100 and any part (e.g., the central portion, the edge portion, a plurality of portions, or all) of the vibration generating device 200.

[0227] According to other embodiments of this specification, the connecting member 150 may be connected or adhered to the entire front surface of one or more vibration generating devices 200 and the back surface 100a of the manual vibration member 100 by a full-surface adhesion method.

[0228] The connecting member 150 according to the embodiments of this specification may be made of a material including an adhesive layer having excellent adhesion or bonding force to the back surface of the display panel or the manual vibration member 100 and each of the one or more vibration generating devices 200. For example, the connecting member 150 may include a foam pad, double-sided tape, an adhesive, etc., but the embodiments of this specification are not limited thereto. For example, the adhesive layer of the connecting member 150 may include epoxy, acryl, silicone, urethane, acrylic polymer, silicone polymer, or urethane polymer, etc., but the embodiments of this specification are not limited thereto. For example, the adhesive layer of the connecting member 150 may include an acrylic substance (or material) having relatively excellent adhesion and high hardness compared to urethane-based materials. Thereby, the vibration of one or more vibration generating devices 200 can be efficiently transmitted to the manual vibration member 100.

[0229] Referring to FIG. 19b, one or more vibration generating devices 200 according to other embodiments of this specification may be configured to be directly connected to the manual vibration member 100. For example, one or more vibration generating devices 200 may be configured to be directly connected to the manual vibration member 100 without a separate intermediate means (or intermediate adhesive member) such as the connecting member 150 in order to increase the adhesion area with the manual vibration member 100. For example, the second adhesive layer 42 of one or more vibration generating devices 200 may be directly connected to the back surface 100a of the manual vibration member 100. For example, the second adhesive layer 42 of one or more vibration generating devices 200 may be directly attached to the back surface 100a of the manual vibration member 100. For example, one or more vibration generating devices 200 may have the second adhesive layer 42 including a thermal bonding adhesive directly attached or bonded to the back surface 100a of the manual vibration member 100 by heat and pressure.

[0230] Referring to FIGS. 18, 19a and 19b, the device according to an embodiment of the present specification may further include a support member 300 and a coupling member 350.

[0231] The support member 300 may be disposed on the back surface 100a of the manual vibration member 100. The support member 300 may be disposed on the back surface 100a of the manual vibration member 100 so as to cover the vibration generating device 200. The support member 300 may be disposed on the back surface 100a of the manual vibration member 100 so as to cover both the back surface 100a of the manual vibration member 100 and the vibration generating device 200. For example, the support member 300 may have the same size as the manual vibration member 100. For example, the support member 300 can cover the entire back surface of the manual vibration member 100 with the vibration generating device 200 and the gap space GS therebetween. The gap space GS may be formed by a coupling member 350 disposed between the manual vibration member 100 and the support member 300 facing each other. The gap space GS can be expressed as an air gap, a storage space, a vibration space, an acoustic space, etc., but is not limited to this term. For example, the support member 300 can cover a part of the vibration generating device 200 or expose the vibration generating device 200.

[0232] The support member 300 may include a glass material and any one of a metal material and a plastic material, but the embodiments of the present specification are not limited thereto. The support member 300 may include a laminated structure in which a glass material and at least one or more materials such as a metal material and a plastic material are laminated.

[0233] Each of the manual vibration member 100 and the support member 300 may have a square or a rectangle, but is not limited thereto, and may also have a polygon, a non-polygon, a circle, or an ellipse. For example, when the device according to an embodiment of the present specification is applied to an acoustic device or a sound bar, each of the manual vibration member 100 and the support member 300 may have a rectangle in which the length of the long side is more than twice the length of the short side, but the embodiments of the present specification are not limited thereto.

[0234] The coupling member 350 is configured to be connected between the rear edge of the manual vibration member 100 and the front edge of the support member 300, so that a gap space GS can be formed between the manual vibration member 100 and the support member 300 facing each other.

[0235] The coupling member 350 according to an embodiment of the present specification can include an elastic material that can be compressed and restored while having adhesiveness. For example, the coupling member 350 can include a double-sided tape, a sectional tape, or a double-sided adhesive foam pad, but is not limited thereto, and can include an elastic pad such as a rubber pad or a silicon pad that can be compressed and restored while having adhesiveness. For example, the coupling member 350 can be formed of an elastomer.

[0236] According to another embodiment of the present specification, the support member 300 can further include a side wall portion that supports the rear edge of the manual vibration member 100. The side wall portion of the support member 300 protrudes from the front edge of the support member 300 toward the rear edge side of the manual vibration member 100 or is bent, so that a gap space GS can be formed between the manual vibration member 100 and the support member 300. In this case, the coupling member 350 can be configured to be connected between the side wall portion of the support member 300 and the rear edge of the manual vibration member 100. Thereby, the support member 300 can cover one or more vibration generating devices 200 and support the rear surface of the manual vibration member 100. For example, the support member 300 can cover one or more vibration generating devices 200 and support the rear edge of the manual vibration member 100.

[0237] According to other embodiments of the present specification, the manual vibration member 100 may further include a side wall portion connected to the front edge portion of the support member 300. The side wall portion of the manual vibration member 100 may protrude or be bent from the rear edge portion of the manual vibration member 100 toward the front edge portion side of the support member 300 to form a gap space GS between the manual vibration member 100 and the support member 300. The rigidity of the manual vibration member 100 can be increased by the side wall portion. In this case, the coupling member 350 may be configured to be connected between the side wall portion of the manual vibration member 100 and the rear edge portion of the support member 300. Thereby, the support member 300 can cover one or more vibration generating devices 200 and support the rear surface 100a of the manual vibration member 100. For example, the support member 300 can cover one or more vibration generating devices 200 and support the rear edge portion of the manual vibration member 100.

[0238] The device according to an embodiment of the present specification may further include one or more enclosures (250).

[0239] The enclosure 250 may be connected or coupled to the back surface portion of the manual vibration member 100 so as to individually cover one or more vibration generating devices 200. For example, the enclosure 250 may be connected or coupled to the back surface 100a of the manual vibration member 100 via a coupling member 251. The enclosure 250 can form a sealed space that covers or surrounds one or more vibration generating devices 200 on the back surface 100a of the manual vibration member 100. For example, the enclosure 250 may be a sealing member, a sealing cap, a sealing box, or a sound box, but the embodiments of the present specification are not limited thereto. The sealed space may be an air gap, a vibration space, an acoustic space, or a resonance space, but the embodiments of the present specification are not limited thereto. For example, the enclosure 250 can cover or surround one or more vibration generating devices 200 on the back surface 100a of the manual vibration member 100 and form a space communicating with the outside (for example, the gap space GS).

[0240] The enclosure 250 can include one or more materials of metallic material or non-metallic material (or composite non-metallic material). For example, the enclosure 250 can include one or more materials of metallic material, plastic, and wood, but the embodiments of the present specification are not limited thereto.

[0241] According to an embodiment of the present specification, the enclosure 250 can maintain a constant impedance component due to air acting on the manual vibration member 100 during the vibration of the manual vibration member 100 or the vibration generating device 200. For example, the air around the manual vibration member 100 resists the vibration of the manual vibration member 100 and acts as an impedance component having different resistance and reactance components depending on the frequency. Accordingly, the enclosure 250 forms a sealed space surrounding one or more vibration generating devices 200 on the back surface 100a of the manual vibration member 100, thereby maintaining a constant impedance component (or air impedance or elastic impedance) acting on the manual vibration member 100 by air, thereby improving acoustic characteristics and / or sound pressure characteristics and improving the sound quality of the sound.

[0242] FIG. 20 is a diagram showing an apparatus according to another embodiment of the present specification. FIG. 20 is a diagram showing the back surface of the apparatuses shown in FIGS. 18 and 19. For example, the apparatus can include a television.

[0243] Referring to FIG. 20, an apparatus according to another embodiment of the present specification can include one or more vibration generating devices 200 disposed on the back surface of the display panel or the manual vibration member 100, a source PCB 450, and a control PCB 470. The embodiments of the present specification are not limited thereto. For example, the source PCB 450 and the control PCB 470 may not be disposed on the back surface of the display panel or the manual vibration member 100 and may be disposed on one or more side surfaces (for example, bezel region) of the manual vibration member 100.

[0244] One or more vibration generators 200 may be disposed on the back of the display panel or the manual vibration member 100. The one or more vibration generators 200 may include one or more of the vibration devices 1, 2, and 3 described with reference to FIGS. 1 to 17. For example, the one or more vibration generators 200 may include a first vibration generator 210 and a second vibration generator 220.

[0245] Each of the first vibration generator 210 and the second vibration generator 220 may include a signal cable 90. Since the signal cable 90 is the same as or substantially the same as the signal cable 90 described with reference to FIGS. 1 to 10, duplicate explanations thereof will be omitted or simplified.

[0246] The first vibration generator 210 may be disposed in a first region A1 of the display panel or the manual vibration member 100. For example, the first region A1 of the display panel or the manual vibration member 100 may be a first back region, a left side region, or a back left side region, but the embodiments of the present specification are not limited thereto. The first vibration generator 210 may be configured to have a size (or area) smaller than that of the first region A1. The first vibration generator 210 may be disposed at various positions within the first region A1. For example, the first vibration generator 210 may be disposed above (or on the upper side) or below the first region A1.

[0247] For example, the first vibration generator 210 may be attached or coupled to the back of the manual vibration member 100 corresponding to the first region A1 of the manual vibration member 100 by a connecting member 150 (see FIG. 19a). For example, the first cover member 30 or the second cover member 50 of the first vibration generator 210 may be attached or coupled to the back of the manual vibration member 100 corresponding to the first region A1 of the manual vibration member 100 by a connecting member 150 (see FIGS. 4b and 19a).

[0248] As another example, the first vibration generating device 210 can be directly attached or coupled to the back surface of the manual vibration member 100 corresponding to the first region A1 of the manual vibration member 100 without any separate intermediate means (or intermediate adhesive member) such as the connection member 150. For example, the second adhesive layer 42 of the first vibration generating device 210 can be directly attached or coupled to the back surface of the manual vibration member 100 corresponding to the first region A1 of the manual vibration member 100 (see FIGS. 4b and 19b).

[0249] The second vibration generating device 220 can be disposed in the second region A2 of the display panel or the manual vibration member 100. For example, the second region A2 of the display panel or the manual vibration member 100 can be a second back region, a right side region, or a back right side region. The second vibration generating device 220 can be configured to have a size (or area) smaller than that of the second region A2. The second vibration generating device 220 can be disposed at various positions within the second region A2. For example, the second vibration generating device 220 can be disposed in an upper (or upper side) or lower region within the second region A2.

[0250] For example, the second vibration generating device 220 can be attached or coupled to the back surface of the manual vibration member 100 corresponding to the second region A2 of the manual vibration member 100 by the connection member 150 (see FIG. 19a). For example, the first cover member 30 or the second cover member 50 of the second vibration generating device 220 can be attached or coupled to the back surface of the manual vibration member 100 corresponding to the second region A2 of the manual vibration member 100 by the connection member 150 (see FIGS. 4b and 19a).

[0251] As another example, the second vibration generating device 220 can be directly attached or coupled to the back surface of the manual vibration member 100 corresponding to the second region A2 of the manual vibration member 100 without any separate intermediate means (or intermediate adhesive member) such as the connection member 150. For example, the second adhesive layer 42 of the second vibration generating device 220 can be directly attached or coupled to the back surface of the manual vibration member 100 corresponding to the second region A2 of the manual vibration member 100 (see FIGS. 4b and 19b).

[0252] The source PCB 450 can be disposed on one or more side edges of the display panel or the manual vibration member 100. For example, the source PCB 450 can be disposed on the lower (or bottom) edge of the display panel or the manual vibration member 100. The source PCB 450 can be connected to a flexible film 430 including a drive IC 440.

[0253] The control PCB 470 can be disposed on the back surface of the display panel or the manual vibration member 100. The control PCB 470 can include a vibration drive circuit (or an acoustic processing circuit). For example, the vibration drive circuit (or the acoustic processing circuit) can be built in the control PCB 470, but the embodiments of the present specification are not limited thereto.

[0254] According to the embodiments of the present specification, one or more vibration generators 200 can be directly or indirectly connected to the vibration drive circuit (or the acoustic processing circuit) of the control PCB 470 via a signal cable 90. For example, one or more vibration generators 200 can be connected to the source PCB 450 via a signal cable 90. The vibration drive signal provided from the vibration drive circuit (or the acoustic processing circuit) is transmitted to the source PCB 450 via a first cable 460, and the vibration drive signal transmitted to the source PCB 450 can be transmitted to another source PCB 450 via a second cable 465. One or more vibration generators 200 are adapted to receive the vibration drive signal provided from the vibration drive circuit (or the acoustic processing circuit) via the signal cable 90 connected to another source PCB 450.

[0255] Referring to FIG. 20, one or more vibration generating devices 200 according to other embodiments of the present specification are disposed in the upper end (or upper side) region of the display panel or the manual vibration member 100, and the source PCB 450 may be disposed in the lower end (or lower side) region of the display panel or the manual vibration member 100. And, one or more vibration generating devices 200 may be integrally configured with a signal cable 90 having a certain length. In this case, the signal cable 90 may have a length shorter than the separation distance between one or more vibration generating devices 200 and the source PCB 450. Thereby, one or more vibration generating devices 200 can further include another signal cable 190 for the extension of the length of the signal cable 90. Since the other signal cable 190 is configured, one or more vibration generating devices 200 are connected to the control PCB 470 and can receive a vibration driving signal. For example, the signal cable 90 (or the first signal cable) connected to one or more vibration generating devices 200 may be connected or coupled to another signal cable 190 (or the second signal cable). The signal cable 90 (or the first signal cable) may be physically coupled and electrically connected to another signal cable 190 (or the second signal cable). For example, the other signal cable 190 (or the second signal cable) may have a straight shape extending in the second direction (Y), but the embodiments of the present specification are not limited thereto. The other signal cable 190 (or the second signal cable) may be configured to connect between the signal cable 90 (or the first signal cable) and the source PCB 450 at the shortest distance.

[0256] FIG. 21 is a diagram showing an apparatus according to another embodiment of the present specification. FIG. 21 is a diagram showing the back surface of the apparatus shown in FIGS. 18 and 19.

[0257] Referring to FIG. 21, an apparatus according to another embodiment of the present specification may include one or more vibration generating devices 200 disposed on the back surface of the display panel or the manual vibration member 100, a source PCB 450, and a control PCB 470.

[0258] One or more vibration generating devices 200 may be disposed on the back surface of the display panel or the manual vibration member 100. The one or more vibration generating devices 200 may include one or more of the vibration devices 1, 2, and 3 described with reference to FIGS. 1 to 17. For example, the one or more vibration generating devices 200 may include a first vibration generating device 210 and a second vibration generating device 220.

[0259] Each of the first vibration generating device 210 and the second vibration generating device 220 may include a signal cable 90. Since the signal cable 90 is the same as or substantially the same as the signal cable 90 described with reference to FIGS. 1 to 10, duplicate description thereof will be omitted or simplified.

[0260] The first vibration generating device 210 may be disposed in a first region A1 of the display panel or the manual vibration member 100. For example, the first region A1 of the display panel or the manual vibration member 100 may be a first back region, a left side region, or a back left side region. The first vibration generating device 210 may be configured to have a size (or area) smaller than that of the first region A1. The first vibration generating device 210 may be disposed at various positions within the first region A1. For example, the first vibration generating device 210 may be disposed in an upper end (or upper side) region within the first region A1.

[0261] The second vibration generating device 220 may be disposed in a second region A2 of the display panel or the manual vibration member 100. For example, the second region A2 of the display panel or the manual vibration member 100 may be a second back region, a right side region, or a back right side region. The second vibration generating device 220 may be configured to have a size (or area) smaller than that of the second region A2. The second vibration generating device 220 may be disposed at various positions within the second region A2. For example, the second vibration generating device 220 may be disposed in an upper end (or upper side) region within the second region A2.

[0262] The source PCB 450 can be disposed on one or more side edges of the display panel or the manual vibration member 100. For example, the source PCB 450 can be disposed on the lower edge of the display panel or the manual vibration member 100. The source PCB 450 can be connected to a flexible film 430 including a drive IC 440.

[0263] The control PCB 470 can be disposed on the back surface of the display panel or the manual vibration member 100. The control PCB 470 can include a vibration drive circuit (or an acoustic processing circuit). For example, the vibration drive circuit (or the acoustic processing circuit) can be built in the control PCB 470, but the embodiments of the present specification are not limited thereto.

[0264] According to the embodiments of the present specification, one or more vibration generating devices 200 can be directly or indirectly connected to the vibration drive circuit (or the acoustic processing circuit) of the control PCB 470 via a signal cable 90. For example, one or more vibration generating devices 200 can be connected to the control PCB 470 via the signal cable 90. The vibration drive signal provided from the vibration drive circuit (or the acoustic processing circuit) can be transmitted to one or more vibration generating devices 200 via the signal cable 90.

[0265] Referring to FIG. 21, one or more vibration generating devices 200 according to other embodiments of the present specification are disposed in the upper end (or upper side) region of the display panel or the manual vibration member 100, and the control PCB 470 can be disposed in the middle lower end (or middle lower side) region of the display panel or the manual vibration member 100. And, one or more vibration generating devices 200 can be integrally configured with a signal cable 90 having a certain length. In this case, the signal cable 90 can have a length shorter than the separation distance between one or more vibration generating devices 200 and the control PCB 470. Also, for example, the signal cable 90 can be bent at least once so as to be connected to the control PCB 470. Thereby, one or more vibration generating devices 200 can further include another signal cable 190 so as to extend and bend the length of the signal cable 90. Since the other signal cable 190 is configured, one or more vibration generating devices 200 can be connected to the control PCB 470 and receive a vibration drive signal.

[0266] For example, the signal cable 90 (or the first signal cable) connected to one or more vibration generators 200 can be connected or coupled to another signal cable 190 (or the second signal cable). The signal cable 90 (or the first signal cable) can be physically coupled and electrically connected to another signal cable 190 (or the second signal cable). For example, the other signal cable 190 (or the second signal cable) can have a form that extends in the second direction (Y) and is bent at least once toward the first direction (X). The other signal cable 190 (or the second signal cable) can be configured to connect between the signal cable 90 (or the first signal cable) and the control PCB 470 in an L shape.

[0267] FIG. 22 is a diagram showing an apparatus according to another embodiment of the present specification. FIG. 22 is a diagram showing the back surface of the apparatus shown in FIGS. 18 and 19.

[0268] Referring to FIG. 22, the apparatus according to another embodiment of the present specification can include one or more vibration generators 200 disposed on the back surface of the display panel or the manual vibration member 100, a source PCB 450, and a main board 500.

[0269] One or more vibration generators 200 can be disposed on the back surface of the display panel or the manual vibration member 100. One or more vibration generators 200 can include one or more of the vibration devices 1, 2, and 3 described with reference to FIGS. 1 to 17. For example, one or more vibration generators 200 can include a first vibration generator 210 and a second vibration generator 220.

[0270] Each of the first vibration generator 210 and the second vibration generator 220 can include a signal cable 90. Since the signal cable 90 is the same as or substantially the same as the signal cable 90 described with reference to FIGS. 1 to 10, the duplicate description thereof is omitted or simplified.

[0271] The first vibration generating device 210 can be arranged in the first area A1 of the display panel or the manual vibration member 100. For example, the first area A1 of the display panel or the manual vibration member 100 can be the first rear area, the left side area, or the rear left side area. The first vibration generating device 210 can be configured to have a size (or area) smaller than that of the first area A1. The first vibration generating device 210 can be arranged at various positions within the first area A1. For example, the first vibration generating device 210 can be arranged in the middle area within the first area A1.

[0272] The second vibration generating device 220 can be arranged in the second area A2 of the display panel or the manual vibration member 100. For example, the second area A2 of the display panel or the manual vibration member 100 can be the second rear area, the right side area, or the rear right side area. The second vibration generating device 220 can be configured to have a size (or area) smaller than that of the second area A2. The second vibration generating device 220 can be arranged at various positions within the second area A2. For example, the second vibration generating device 220 can be arranged in the middle area within the second area A2.

[0273] The main board 500 can be arranged on the back of the display panel or the manual vibration member 100, but the embodiments of this specification are not limited thereto. The main board 500 can be arranged on the support plate 310 provided on the back of the display panel or the manual vibration member 100. The support plate 310 can include the support member 300 described with reference to FIGS. 18 and 19. For example, the support plate 310 can be configured to cover a part of the back of the manual vibration member 100. The main board 500 can be mounted on the support plate 310, but the embodiments of this specification are not limited thereto. The main board 500 can include a vibration drive circuit (or an acoustic processing circuit). For example, the vibration drive circuit (or the acoustic processing circuit) can be built into the main board 500. The support plate 310 can further include at least one hole 320. The at least one hole 320 can be a passage through which the signal cable 90 connected to one or more vibration generating devices 200 passes.

[0274] Referring to FIG. 22, one or more vibration generating devices 200 according to other embodiments of the present specification are disposed on both side edges of the intermediate region of the display panel or the manual vibration member 100, and the main board 500 may be disposed in the intermediate region of the display panel or the manual vibration member 100. And, one or more vibration generating devices 200 may be integrally configured with a signal cable 90 having a certain length. In this case, the signal cable 90 may have a length shorter than the separation distance between one or more vibration generating devices 200 and the main board 500. Thereby, one or more vibration generating devices 200 can further include another signal cable 190 so as to extend the length of the signal cable 90. Since the other signal cable 190 is configured, one or more vibration generating devices 200 are connected to the control PCB 470 and can receive a vibration drive signal. For example, the signal cable 90 (or the first signal cable) connected to one or more vibration generating devices 200 may be connected or coupled to another signal cable 190 (or the second signal cable). The signal cable 90 (or the first signal cable) may be physically coupled and electrically connected to another signal cable 190 (or the second signal cable). For example, the other signal cable 190 (or the second signal cable) may have a straight shape extending in the first direction (X). The other signal cable 190 (or the second signal cable) may be configured to couple between the signal cable 90 (or the first signal cable) and the source PCB 450 at the shortest distance.

[0275] FIG. 23 is a view showing an apparatus according to another embodiment of the present specification. FIG. 23 is a view showing the back surface of the apparatus shown in FIGS. 18 and 19.

[0276] Referring to FIG. 23, an apparatus according to another embodiment of the present specification may include one or more vibration generating devices 200 disposed on the back surface of the display panel or the manual vibration member 100, a source PCB 450, and a main board 500.

[0277] One or more vibration generators 200 can be arranged on the back of the display panel or the manual vibration member 100. The one or more vibration generators 200 can include one or more of the vibration devices 1, 2, and 3 described with reference to FIGS. 1 to 17. For example, the one or more vibration generators 200 can include a first vibration generator 210, a second vibration generator 220, a third vibration generator 230, and a fourth vibration generator 240.

[0278] Each of the first vibration generator 210, the second vibration generator 220, the third vibration generator 230, and the fourth vibration generator 240 can include a signal cable 90. Since the signal cable 90 is the same as or substantially the same as the signal cable 90 described with reference to FIGS. 1 to 10, duplicate explanations thereof will be omitted or simplified. For example, the first vibration generator 210, the second vibration generator 220, the third vibration generator 230, and the fourth vibration generator 240 can include signal cables 90 having the same shape and length, or different shapes and lengths.

[0279] The first vibration generator 210 can be arranged in the first region A1 of the display panel or the manual vibration member 100. For example, the first region A1 of the display panel or the manual vibration member 100 can be the first back region, the left side region, or the back left side region. The first vibration generator 210 can be configured to have a size (or area) smaller than that of the first region A1. The first vibration generator 210 can be arranged at various positions within the first region A1. For example, the first vibration generator 210 can be arranged at the edge on one side (or the left side) of the middle region of the first region A1.

[0280] The second vibration generator 220 can be arranged in the first region A1 of the display panel or the manual vibration member 100. The second vibration generator 220 can be configured to have a size (or area) smaller than that of the first region A1. The second vibration generator 220 can be arranged at various positions within the first region A1. For example, the second vibration generator 220 can be arranged at the upper (or upper side) edge of the first region A1.

[0281] The third vibration generating device 230 can be disposed in the second region A2 of the display panel or the manual vibration member 100. For example, the second region A2 of the display panel or the manual vibration member 100 can be a second rear region, a right side region, or a rear right side region. The third vibration generating device 230 can be configured to have a size (or area) smaller than that of the second region A2. The third vibration generating device 230 can be disposed at various positions within the second region A2. For example, the third vibration generating device 230 can be disposed at an edge on the other side (or the right side) of the middle region of the second region A2.

[0282] The fourth vibration generating device 240 can be disposed in the second region A2 of the display panel or the manual vibration member 100. The fourth vibration generating device 240 can be configured to have a size (or area) smaller than that of the second region A2. The fourth vibration generating device 240 can be disposed at various positions within the second region A2. For example, the fourth vibration generating device 240 can be disposed at an edge on the upper (or upper side) of the second region A2.

[0283] The main board 500 can be disposed on the back surface of the display panel or the manual vibration member 100. The main board 500 can be disposed on a support plate 310 provided on the back surface of the display panel or the manual vibration member 100. The support plate 310 can include the support member 300 described with reference to FIGS. 18 and 19. For example, the support plate 310 can be configured to cover a part of the back surface of the manual vibration member 100. The main board 500 can be mounted on the support plate 310, but the embodiments of the present specification are not limited thereto. The main board 500 can include a vibration drive circuit (or an acoustic processing circuit). For example, the vibration drive circuit (or the acoustic processing circuit) can be built in the main board 500. The support plate 310 can further include at least one hole 320. The at least one hole 320 can be a passage through which a signal cable 90 connected to one or more vibration generating devices 200 passes.

[0284] Referring to FIG. 23, one or more vibration generators 200 according to other embodiments of the present specification are disposed on both side edges and the upper edge of the intermediate region of the display panel or the manual vibration member 100, and the main board 500 may be disposed in the intermediate region of the display panel or the manual vibration member 100. And, one or more vibration generators 200 may be integrally configured with a signal cable 90 having a certain length. In this case, the signal cable 90 may have a length shorter than the separation distance between one or more vibration generators 200 and the main board 500. Accordingly, one or more vibration generators 200 may further include another signal cable 190 for the extension of the length of the signal cable 90. By configuring another signal cable 190, one or more vibration generators 200 may be connected to the control PCB 470 and receive a vibration drive signal. For example, the signal cable 90 (or the first signal cable) connected to the first vibration generator 210 and the third vibration generator 230 among one or more vibration generators 200 may be connected to another signal cable 190 (or the second signal cable) having a straight shape extending in the first direction (X). Also, the signal cable 90 (or the first signal cable) connected to the second vibration generator 220 and the fourth vibration generator 240 among one or more vibration generators 200 may be connected to another signal cable 190 (or the second signal cable) having a form bent at least once so as to extend in the second direction (Y) and then toward the first direction (X). According to an embodiment of the present specification, since one or more vibration generators 200 are configured, a vibration device including a multi-channel can be implemented. And, the degree of freedom in arranging one or more vibration generators 200 can be improved.

[0285] FIG. 24 is a view showing a device according to another embodiment of the present specification. FIG. 24 is a view showing the back of the devices shown in FIGS. 18 and 19.

[0286] Referring to FIG. 24, a device according to another embodiment of the present specification may include one or more vibration generators 200 disposed on the back of the display panel or the manual vibration member 100, a source PCB 450, and a main board 500.

[0287] One or more vibration generators 200 can be arranged on the back of the display panel or the manual vibration member 100. One or more vibration generators 200 can include one or more of the vibration devices 1, 2, and 3 described with reference to FIGS. 1 to 17. For example, one or more vibration generators 200 can include a first vibration generator 210, a second vibration generator 220, a third vibration generator 230, and a fourth vibration generator 240.

[0288] Each of the first vibration generator 210, the second vibration generator 220, the third vibration generator 230, and the fourth vibration generator 240 can include a signal cable 90. Since the signal cable 90 is the same as or substantially the same as the signal cable 90 described with reference to FIGS. 1 to 10, duplicate explanations thereof will be omitted or simplified.

[0289] The first vibration generator 210 can be arranged in the first region A1 of the display panel or the manual vibration member 100. For example, the first region A1 of the display panel or the manual vibration member 100 can be the first back region, the left side region, or the back left side region. The first vibration generator 210 can be configured to have a size (or area) smaller than that of the first region A1. The first vibration generator 210 can be arranged at various positions within the first region A1. For example, the first vibration generator 210 can be arranged at the edge on one side (or the left side) of the middle region of the first region A1.

[0290] The second vibration generator 220 can be arranged in the first region A1 of the display panel or the manual vibration member 100. The second vibration generator 220 can be configured to have a size (or area) smaller than that of the first region A1. The second vibration generator 220 can be arranged at various positions within the first region A1. For example, the second vibration generator 220 can be arranged at the edge on one side (or the left side) of the upper end region of the first region A1.

[0291] The third vibration generating device 230 can be disposed in the second region A2 of the display panel or the manual vibration member 100. For example, the second region A2 of the display panel or the manual vibration member 100 can be a second back region, a right side region, or a back right side region. The third vibration generating device 230 can be configured to have a size (or area) smaller than that of the second region A2. The third vibration generating device 230 can be disposed at various positions within the second region A2. For example, the third vibration generating device 230 can be disposed at an edge on the other side (or the right side) of the middle region of the second region A2.

[0292] The fourth vibration generating device 240 can be disposed in the second region A2 of the display panel or the manual vibration member 100. The fourth vibration generating device 240 can be configured to have a size (or area) smaller than that of the second region A2. The fourth vibration generating device 240 can be disposed at various positions within the second region A2. For example, the fourth vibration generating device 240 can be disposed at an edge on the other side (or the right side) of the upper end region of the second region A2.

[0293] The main board 500 can be disposed on the back surface of the display panel or the manual vibration member 100. The main board 500 can be disposed on a support plate 310 provided on the back surface of the display panel or the manual vibration member 100. The support plate 310 can include the support member 300 described with reference to FIGS. 18 and 19. For example, the support plate 310 can be configured to cover a part of the back surface of the manual vibration member 100. The main board 500 can be mounted on the support plate 310, but the embodiments of the present specification are not limited thereto. The main board 500 can include a vibration drive circuit (or an acoustic processing circuit). For example, the vibration drive circuit (or the acoustic processing circuit) can be built in the main board 500. The support plate 310 can further include at least one hole 320. The at least one hole 320 can be a passage through which a signal cable 90 connected to one or more vibration generating devices 200 passes.

[0294] Referring to FIG. 24, one or more vibration generating devices 200 according to other embodiments of the present specification are disposed on both side edges of the intermediate region of the display panel or the manual vibration member 100 and both side edges of the upper end region, and the main board 500 may be disposed in the intermediate region of the display panel or the manual vibration member 100. And one or more vibration generating devices 200 may be integrally configured with a signal cable 90 having a certain length. In this case, the signal cable 90 may have a length shorter than the separation distance between one or more vibration generating devices 200 and the main board 500. Thereby, one or more vibration generating devices 200 can further include another signal cable 190 so as to extend the length of the signal cable 90. Since the other signal cable 190 is configured, one or more vibration generating devices 200 are connected to the control PCB 470 and can receive a vibration drive signal. For example, the signal cable 90 (or the first signal cable) connected to the first vibration generating device 210 and the third vibration generating device 230 among one or more vibration generating devices 200 may be connected to another signal cable 190 (or the second signal cable) having a straight shape extending in the first direction (X). Also, the signal cable 90 (or the first signal cable) connected to the second vibration generating device 220 and the fourth vibration generating device 240 among one or more vibration generating devices 200 extends in the first direction (X) and then extends in the second direction (Y), and further has a shape that is bent at least twice so as to face the first direction (X). Another signal cable 190 (or the second signal cable) may be connected. According to the embodiments of the present specification, since one or more vibration generating devices 200 are configured, a vibration device including a multi-channel can be implemented. And the degree of freedom in arranging one or more vibration generating devices 200 can be improved.

[0295] FIG. 25 is a diagram showing a connection structure of a signal cable of the "a" part in FIGS. 20 to 24 according to another embodiment of the present specification. FIG. 26 is a diagram showing the signal cable of FIG. 25 according to another embodiment of the present specification. FIG. 27 is a cross-sectional view of the J-J' line in FIG. 26 according to another embodiment of the present specification. FIG. 28 is a diagram showing another signal cable shown in FIG. 25 according to another embodiment of the present specification. FIG. 29 is a cross-sectional view of the K-K' line in FIG. 28 according to another embodiment of the present specification. FIG. 30 is a cross-sectional view of the I-I' line in FIG. 25 according to another embodiment of the present specification.

[0296] Referring to FIG. 25, in an apparatus according to another embodiment of the present specification, a signal cable 90 (or a first signal cable) and another signal cable 190 (or a second signal cable) can be connected or coupled to each other. For example, the signal cable 90 (or the first signal cable) according to another embodiment of the present specification can be configured to extend a signal connection path provided to the vibration generating device 200 by being connected or coupled to the other signal cable 190 (or the second signal cable). For example, the connection portion of the signal cable 90 (or the first signal cable) can be configured with a connector structure that can fasten the connection portion to an external connector with the other signal cable 190 (or the second signal cable). For example, the width of the connection portion of the signal cable 90 (or the first signal cable) can be the same as or less than the width of the film member 91 of the signal cable 90 (or the first signal cable), but the embodiments of the present specification are not limited thereto. Also, the width of the connection portion of the other signal cable 190 (or the second signal cable) can be the same as or greater than the width of the connection portion of the signal cable 90 (or the first signal cable), but the embodiments of the present specification are not limited thereto.

[0297] Referring to FIGS. 26 and 27, a signal cable 90 (or a first signal cable) according to another embodiment of the present specification may include a terminal portion 97. The terminal portion 97 may be disposed at an end portion (or a terminal end portion or one side) of the signal cable 90. The terminal portion 97 may be disposed at an opposite end portion (or a terminal end portion or one side) of a portion where the signal cable 90 is connected to the vibrating portion 10. The terminal portion 97 may include a connector structure that is electrically connected to a vibration driving circuit (or an acoustic processing circuit) or is electrically connected to the vibration driving circuit (or an acoustic processing circuit).

[0298] The terminal portion 97 may include at least one terminal 92p disposed at the other side edge portion of the film member 91. The at least one terminal 92p may be disposed at regular intervals. For example, the terminal portion 97 may be configured as at least one terminal 92p by exposing a part of each of at least one signal line 92 disposed at the other side edge portion of the film member 91. Each of the at least one terminal 92p may correspond to at least one signal line 92. Each of the at least one terminal 92p may be configured to extend from at least one signal line 92.

[0299] The at least one terminal 92p may be disposed on the film member 91. The at least one terminal 92p may be spaced apart from each other in the width direction (or the X direction) of the film member 91. The at least one terminal 92p may be disposed on the film member 91 with an adhesive member 93 interposed therebetween. The at least one terminal 92p may be connected or coupled to the first surface (or the upper surface or the top surface) of the film member 91 via the adhesive member 93. The terminals disposed on both sides in the width direction (or the X direction) of the film member 91 among the at least one terminal 92p may be disposed at both edge portions of the film member 91.

[0300] Referring to FIGS. 28 and 29, the vibration device according to other embodiments of the present specification may further include another signal cable 190 (or a second signal cable). The other signal cable 190 (or the second signal cable) may be electrically connected to the signal cable 90 (or the first signal cable) connected to the vibration device. The other signal cable 190 may be coupled to the signal cable 90 and configured to extend the connection path between the vibration device and the vibration driving circuit.

[0301] The other signal cable 190 may include a terminal connection portion 196 and a terminal portion 197. The terminal connection portion 196 may be disposed at one end (or the end portion) of the other signal cable 190. The terminal portion 197 may be disposed at the other end (or the end portion) of the other signal cable 190.

[0302] The terminal connection portion 196 may be connected to or coupled with the terminal portion 97 of the signal cable 90. The terminal portion 197 of the other signal cable 190 may be configured in the same manner as the terminal portion 97 of the signal cable 90, but the embodiments of the present specification are not limited thereto. The terminal portion 197 of the other signal cable 190 may replace the role of the terminal portion 97 of the signal cable 90. The terminal portion 197 of the other signal cable 190 may include a connector structure that is electrically connected to or electrically connected to the vibration driving circuit (or the acoustic processing circuit).

[0303] The terminal connection portion 196 may include a film member 191 (or a third film member), an adhesive member 193 (or a third adhesive member), at least one signal connection terminal 192p, and a conductive adhesive member 195 (or a fifth adhesive member).

[0304] The film member 191 can have a constant width and extend to have a constant length. The film member 191 can be configured similarly to the film member 91 of the signal cable 90, but the embodiments of this specification are not limited thereto. The film member 191 can include a transparent or opaque plastic material. For example, the film member 191 can be embodied by any one or more of synthetic resins including fluororesin, polyimide-based resin, polyurethane-based resin, polyester-based resin, polyethylene-based resin, and polypropylene-based resin, but the embodiments of this specification are not limited thereto.

[0305] At least one signal connection terminal 192p can be disposed on the film member 191. At least one signal connection terminal 192p can be spaced apart from each other in the width direction (or X direction) of the film member 191. At least one signal connection terminal 192p can be disposed on the film member 191 with the adhesive member 193 interposed therebetween. At least one signal connection terminal 192p can be connected or coupled to the first surface (or upper surface or top surface) of the film member 191 via the adhesive member 193. The adhesive member 193 can include an electrically insulating material that has adhesiveness and is capable of compression and restoration. For example, the adhesive member 193 can include epoxy resin, acrylic resin, silicone resin, or urethane resin, but the embodiments of this specification are not limited thereto. For example, the adhesive member 193 can be composed of a pressure-sensitive adhesive (PSA), a thermosetting adhesive, and a thermoplastic adhesive, etc. For example, the thermoplastic adhesive can be a hot-melt adhesive, but the embodiments of this specification are not limited thereto.

[0306] A conductive adhesive member 195 may be disposed on at least one signal connection terminal 192p. The conductive adhesive member 195 may be composed of a substance different from the adhesive member 193, but the embodiments of this specification are not limited thereto. The conductive adhesive member 195 may be disposed on the first surface (or upper surface or top surface) of at least one signal connection terminal 192p. The width of the conductive adhesive member 195 may be the same as or greater than the width of at least one signal connection terminal 192p, and may be smaller than the width of the adhesive member 193, but the embodiments of this specification are not limited thereto. The conductive adhesive member 195 may be composed of a material having an adhesive force to the signal connection terminal 192p and capable of having excellent safety and electrical characteristics after being connected to the signal cable 90. For example, the conductive adhesive member 195 may include a conductive substance having adhesiveness and capable of electrical connection. For example, the conductive substance may include silver (Ag) or carbon, but the embodiments of this specification are not limited thereto.

[0307] The conductive adhesive member 195 may be a conductive double-sided tape, a conductive double-sided adhesive pad, or a conductive double-sided cushion tape, but the embodiments of this specification are not limited thereto. For example, the conductive adhesive member 195 may be composed of a pressure-sensitive adhesive (PSA), a thermosetting adhesive, a thermoplastic adhesive, etc., but the embodiments of this specification are not limited thereto. According to the embodiments of this specification, the conductive adhesive member 195 may be composed of a thermosetting adhesive so as to prevent excessive curing and a decrease in adhesive characteristics even when exposed to high temperatures in the film laminating process. For example, the thermosetting adhesive may include epoxy, polyimide, or phenolic resin, etc., but the embodiments of this specification are not limited thereto. For example, the thermosetting adhesive may have a stable adhesive force at a high temperature equal to or higher than the glass transition temperature.

[0308] Referring to FIG. 30, according to other embodiments of the present specification, a signal cable 90 (or a first signal cable) and another signal cable 190 (or a second signal cable) can be connected or coupled to each other. For example, the coupling between the signal cable 90 and the other signal cable 190 can be achieved by aligning the terminal portion 97 of the signal cable 90 and the terminal connection portion 196 of the other signal cable 190 with each other, and then connecting or coupling the aligned terminal portion 97 of the signal cable 90 and the terminal connection portion 196 of the other signal cable 190 by fitting them together.

[0309] In the portion where the signal cable 90 and the other signal cable 190 are coupled, at least one terminal 92p of the signal cable 90 and at least one signal connection terminal 192p of the other signal cable 190 can be electrically connected via the conductive adhesive member 195 of the other signal cable 190. The adhesive member 93 of the signal cable 90 and the adhesive member 193 of the other signal cable 190 can be connected or coupled to each other with at least one terminal 92p of the signal cable 90 and at least one signal connection terminal 192p of the other signal cable 190 sandwiched therebetween. Thereby, at least one terminal 92p and at least one signal connection terminal 192p are firmly fixed by the adhesive member 93, the adhesive member 193, and the conductive adhesive member 195, so that poor contact between the signal cable 90 and the other signal cable 190 can be prevented.

[0310] FIG. 31 is a diagram showing another embodiment of the connection structure of the signal cable shown in FIG. 25 according to another embodiment of the present specification. FIG. 32 is a diagram showing the signal cable shown in FIG. 31 according to another embodiment of the present specification. FIG. 33 is a cross-sectional view of the N-N' line of FIG. 32 according to another embodiment of the present specification. FIG. 34 is a diagram showing another signal cable shown in FIG. 31 according to another embodiment of the present specification. FIG. 35 is a cross-sectional view of the M-M' line of FIG. 34 according to another embodiment of the present specification. FIG. 36 is a cross-sectional view of the L-L' line of FIG. 31 according to another embodiment of the present specification. FIGS. 31 to 36 are modifications of the connection structure of the signal cable described with reference to FIGS. 25 to 30. Accordingly, in the description of FIGS. 31 to 36, the same reference numerals are given to the remaining configurations in the connection structure of the signal cable except for the modified configurations, and the duplicate description thereof is omitted or simplified.

[0311] Referring to FIG. 31, in the apparatus according to other embodiments of the present specification, the signal cable 90 (or the first signal cable) and the other signal cable 190 (or the second signal cable) can be connected or coupled to each other. For example, the signal cable 90 (or the first signal cable) according to other embodiments of the present specification can be configured to extend the signal connection path provided to the vibration generating device 200 by being connected or coupled to the other signal cable 190 (or the second signal cable). For example, the connection portion of the signal cable 90 (or the first signal cable) with the other signal cable 190 (or the second signal cable) can be configured to have a structure in which they correspond to each other. For example, each connection portion of the signal cable 90 (or the first signal cable) and the other signal cable 190 (or the second signal cable) can have substantially the same structure as each other, but the embodiments of the present specification are not limited thereto. For example, each connection portion of the signal cable 90 (or the first signal cable) and the other signal cable 190 (or the second signal cable) can have substantially the same structure as each other within the error range in the manufacturing process. For example, the width of the connection portion of the signal cable 90 (or the first signal cable) can be the same as the width of the film member 91 of the signal cable 90 (or the first signal cable), but the embodiments of the present specification are not limited thereto. Also, the width of the connection portion of the other signal cable 190 (or the second signal cable) can be substantially the same as the width of the connection portion of the signal cable 90 (or the first signal cable) within the error range in the manufacturing process.

[0312] Referring to FIGS. 32 and 33, the signal cable 90 (or the first signal cable) according to other embodiments of the present specification can include a terminal portion 97. The terminal portion 97 can be disposed at an end (or a terminal end or one side) of the signal cable 90. The terminal portion 97 can be disposed at an opposite end (or a terminal end or one side) of the portion where the signal cable 90 is connected to the vibrating portion 10. The terminal portion 97 can include a structure corresponding to the connection structure of the other signal cable 190.

[0313] The terminal portion 97 can include at least one terminal 92p disposed at the other side edge of the film member 91. The at least one terminal 92p can be arranged at regular intervals. For example, the terminal portion 97 can be configured as at least one terminal 92p by exposing a part of each of at least one signal line 92 disposed at the other side edge of the film member 91. Each of the at least one terminal 92p can correspond to at least one signal line 92. Each of the at least one terminal 92p can be configured to extend from at least one signal line 92.

[0314] The at least one terminal 92p can be disposed on the film member 91. The at least one terminal 92p can be spaced apart from each other in the width direction (or X direction) of the film member 91. The at least one terminal 92p can be disposed on the film member 91 with the adhesive member 93 interposed therebetween. The at least one terminal 92p can be connected or coupled to the first surface (or upper surface or top surface) of the film member 91 via the adhesive member 93. The terminals disposed on both sides in the width direction (or X direction) of the film member 91 among the at least one terminal 92p can be disposed at a certain interval from the ends (or one side) of both edges of the film member 91.

[0315] Referring to FIGS. 34 and 35, the vibration device according to another embodiment of the present specification can further include another signal cable 190 (or second signal cable). The other signal cable 190 (or second signal cable) can be electrically connected to the signal cable 90 (or first signal cable) connected to the vibration device. The other signal cable 190 can be coupled to the signal cable 90 and configured to extend the connection path between the vibration device and the vibration drive circuit.

[0316] The other signal cable 190 can include a terminal connection portion 196 and a terminal portion 197. The terminal connection portion 196 can be disposed at one side end (or end portion) of the other signal cable 190. The terminal portion 197 can be disposed at the other side end (or end portion) of the other signal cable 190.

[0317] The terminal connection portion 196 can be connected or coupled to the terminal portion 97 of the signal cable 90. The terminal portion 197 of another signal cable 190 can be configured similarly to the terminal portion 97 of the signal cable 90, but the embodiments of this specification are not limited thereto. The terminal portion 197 of another signal cable 190 can replace the role of the terminal portion 97 of the signal cable 90. The terminal portion 197 of another signal cable 190 can include a connector structure that is electrically connected to or electrically connected to the vibration drive circuit (or the acoustic processing circuit).

[0318] The terminal connection portion 196 can include a film member 191 (or a third film member), an adhesive member 193 (or a third adhesive member), at least one signal connection terminal 192p, and a conductive adhesive member 195 (or a fifth adhesive member).

[0319] The film member 191 can have a certain width and extend to have a certain length. The film member 191 can be configured similarly to the film member 91 of the signal cable 90, but the embodiments of this specification are not limited thereto. The film member 191 can include a transparent or opaque plastic material, but the embodiments of this specification are not limited thereto. For example, the film member 191 can be embodied by any one or more of synthetic resins including fluororesin, polyimide-based resin, polyurethane-based resin, polyester-based resin, polyethylene-based resin, and polypropylene-based resin, but the embodiments of this specification are not limited thereto.

[0320] At least one signal connection terminal 192p can be disposed on the film member 191. At least one signal connection terminal 192p can be spaced apart from each other in the width direction (or X direction) of the film member 191. At least one signal connection terminal 192p can be disposed on the film member 191 with the adhesive member 193 interposed therebetween. At least one signal connection terminal 192p can be connected or coupled to the first surface (or upper surface or top surface) of the film member 191 via the adhesive member 193. The adhesive member 193 can include an electrically insulating material that has adhesiveness and is capable of compression and restoration. For example, the adhesive member 193 can include an epoxy resin, an acrylic resin, a silicone resin, or a urethane resin, but the embodiments of the present specification are not limited thereto. For example, the adhesive member 193 can be composed of a pressure sensitive adhesive (PSA), a thermosetting adhesive, a thermoplastic adhesive, and the like. For example, the thermoplastic adhesive can be a hot-melt adhesive, but the embodiments of the present specification are not limited thereto.

[0321] A conductive adhesive member 195 can be disposed on at least one signal connection terminal 192p. The conductive adhesive member 195 can be composed of a material different from that of the adhesive member 193, but the embodiments of this specification are not limited thereto. The conductive adhesive member 195 can be disposed on the first surface (or upper surface or top surface) of at least one signal connection terminal 192p. The width of the conductive adhesive member 195 can be the same as or greater than the width of at least one signal connection terminal 192p, and may be smaller than the width of the adhesive member 193. For example, one side (or left side) edge of the conductive adhesive member 195 can be disposed at a certain interval L1 from the end of one side edge of the film member 191 or the adhesive member 193. Also, the other side (or right side) edge of the conductive adhesive member 195 can be disposed at a certain interval L1 from the end of the other side edge of the film member 191 or the adhesive member 193. The conductive adhesive member 195 can include an adhesive and an electrically conductive material capable of electrical connection. For example, the conductive material can include silver (Ag) or carbon, but the embodiments of this specification are not limited thereto.

[0322] The conductive adhesive member 195 can be a conductive double-sided tape, a conductive double-sided adhesive pad, or a conductive double-sided cushion tape, but the embodiments of this specification are not limited thereto. For example, the conductive adhesive member 195 can be composed of a pressure-sensitive adhesive (PSA), a thermosetting adhesive, or a thermoplastic adhesive, etc., but the embodiments of this specification are not limited thereto. According to the embodiments of this specification, the conductive adhesive member 195 can be composed of a thermosetting adhesive so as to prevent excessive curing and a decrease in adhesive properties even when exposed to the temperature of film lamination in the film lamination process. For example, the thermosetting adhesive can include epoxy, polyimide, or phenol resin, etc., but the embodiments of this specification are not limited thereto. For example, the thermosetting adhesive can have a stable adhesive force at a high temperature above the glass transition temperature.

[0323] Referring to FIG. 36, the signal cable 90 (or the first signal cable) and the other signal cable 190 (or the second signal cable) according to other embodiments of the present specification can be connected or coupled to each other. For example, the coupling between the signal cable 90 and the other signal cable 190 can be achieved by aligning the terminal portion 97 of the signal cable 90 and the terminal connection portion 196 of the other signal cable 190 with each other, and then connecting or coupling the aligned terminal portion 97 of the signal cable 90 and the terminal connection portion 196 of the other signal cable 190 by fusing them at a high temperature.

[0324] In the portion where the signal cable 90 and the other signal cable 190 are coupled, at least one terminal 92p of the signal cable 90 and at least one signal connection terminal 192p of the other signal cable 190 can be electrically connected through the conductive adhesive member 195 of the other signal cable 190. The adhesive member 93 of the signal cable 90 and the adhesive member 193 of the other signal cable 190 can be connected or coupled surrounding at least one terminal 92p of the signal cable 90 and at least one signal connection terminal 192p of the other signal cable 190. Thereby, at least one terminal 92p and at least one signal connection terminal 192p are firmly fixed by the adhesive member 93, the adhesive member 193, and the conductive adhesive member 195, so that poor contact between the signal cable 90 and the other signal cable 190 can be prevented.

[0325] FIG. 37 is a diagram for explaining a connection method of a signal cable according to another embodiment of the present specification.

[0326] Referring to FIG. 37, according to another embodiment of the present specification, the signal cable 90 (or the first signal cable) and the other signal cable 190 (or the second signal cable) can be connected or coupled by aligning at least one signal terminal 92p of the signal cable 90 and at least one signal connection terminal 192p of the other signal cable 190 so that they correspond to each other and then joining them together at a high temperature in the aligned state. In this case, a conductive adhesive member 195 can be disposed on at least one signal connection terminal 192p of the other signal cable 190. The conductive adhesive member 195 can be disposed between at least one signal terminal 92p of the signal cable 90 and at least one signal connection terminal 192p of the other signal cable 190. At least one signal terminal 92p and at least one signal connection terminal 192p can be electrically connected to each other via the conductive adhesive member 195.

[0327] FIG. 38 is a diagram showing another embodiment of the connection structure of the signal cable shown in FIG. 25 according to another embodiment of the present specification. FIG. 39 is a diagram for explaining a connection method of the signal cable according to another embodiment of the present specification.

[0328] Referring to FIGS. 38 and 39, according to another embodiment of the present specification, in the apparatus, the signal cable 90 (or the first signal cable) and the other signal cable 190 (or the second signal cable) can be connected or coupled to each other.

[0329] According to another embodiment of the present specification, the signal cable 90 (or the first signal cable) can further include at least one hole 98. The at least one hole 98 can be configured to penetrate in the thickness direction of the signal cable 90. For example, the at least one hole 98 can be configured to penetrate one surface (or one side) of the film member 91 and the other surface (or the other side) opposite to the one surface. The at least one hole 98 can serve to align with each other during the connection or coupling process of the signal cable 90 and another signal cable 190. For example, the at least one hole 98 can serve to guide or align the connection or coupling position of the signal cable 90. As shown in FIG. 39, at least one hole 98 of the signal cable 90 can be coupled to an alignment protrusion 610 provided on the coupling jig 600 of the signal cable, thereby aligning or fixing the alignment position of the signal cable 90.

[0330] According to another embodiment of the present specification, another signal cable 190 (or the second signal cable) can further include at least one hole 198. The at least one hole 198 can be configured to penetrate in the thickness direction of the other signal cable 190. For example, the at least one hole 198 can be configured to penetrate one surface (or one side) of the film member 191 and the other surface (or the other side) opposite to the one surface. The at least one hole 198 can serve to align with each other during the connection or coupling process of the signal cable 90 and another signal cable 190. For example, the at least one hole 198 can serve to guide or align the connection or coupling position of the other signal cable 190. As shown in FIG. 39, at least one hole 198 of the other signal cable 190 can be coupled to an alignment protrusion 620 provided on the coupling jig 600 of the signal cable, thereby aligning or fixing the alignment position of the other signal cable 90.

[0331] FIG. 40 is a diagram showing the acoustic output characteristics of the device according to the experimental example of this specification. FIG. 41 is a diagram showing the acoustic output characteristics of the device according to the example of this specification. In FIGS. 40 and 41, the horizontal axis represents frequency (Frequency, Hz (hertz)), and the vertical axis represents sound pressure level (Sound Pressure Level; SPL, dB (decibel)).

[0332] FIG. 40 shows the acoustic output characteristics over time at high temperature (85° C.) and high humidity (85% RH (relative humidity %RH)) with the conductive adhesive member described in FIGS. 5 to 8 being composed of a pressure-sensitive adhesive (PSA). FIG. 41 shows the acoustic output characteristics over time at high temperature (85° C.) and high humidity (85% RH (relative humidity %RH)) with the conductive adhesive member described in FIGS. 5 to 8 being composed of a thermosetting adhesive. In FIG. 40, the dotted line indicates an elapsed time of 0 hours, the dashed line indicates an elapsed time of 168 hours, and the solid line indicates an elapsed time of 336 hours. In FIG. 41, the dotted line indicates an elapsed time of 0 hours, the dashed line indicates an elapsed time of 168 hours, the dash-dotted line indicates an elapsed time of 336 hours, and the solid line indicates an elapsed time of 500 hours.

[0333] Referring to FIGS. 40 and 41, when the conductive adhesive member is composed of a pressure-sensitive adhesive, the acoustic output characteristics decreased rapidly when 336 hours had elapsed. It can be seen from this that a contact failure occurred in the signal line. For example, in the high-temperature co-bonding process of connecting the signal line and the film member, a contact failure of the signal line may occur in the pressure-sensitive adhesive. And when the conductive adhesive member is composed of a thermosetting adhesive, the acoustic output characteristics were maintained at a certain level even after 500 hours had elapsed under the environmental conditions. It can be seen from this that the contact reliability of the signal line was maintained.

[0334] FIGS. 42a and 42b are diagrams showing the acoustic output characteristics of the device according to another example of this specification. FIGS. 43 and 44 are diagrams showing the acoustic output characteristics of the device according to the example of this specification. In FIGS. 42a to 44, the horizontal axis represents frequency (Frequency, Hz (hertz)), and the vertical axis represents sound pressure level (Sound Pressure Level; SPL, dB (decibel)).

[0335] Figures 42a and 42b are graphs showing the acoustic output characteristics in the case of the vibration device described in FIGS. 1 to 4b, when other signal cables 190 described in FIGS. 31 to 36 are applied to the configuration of the vibration device described in FIGS. 1 to 4b, and when a predetermined time has elapsed at high temperature (50° C.) and high humidity (80% RH (relative humidity %RH)). FIG. 43 is a graph showing the acoustic output characteristics in the case of the vibration device described in FIGS. 1 to 4b, when other signal cables 190 described in FIGS. 31 to 36 are applied to the configuration of the vibration device described in FIGS. 1 to 4b, and when a predetermined time has elapsed at low temperature (0° C.). FIG. 44 is a graph showing the acoustic output characteristics in the case of the vibration device described in FIGS. 1 to 4b, when other signal cables 190 described in FIGS. 31 to 36 are applied to the configuration of the vibration device described in FIGS. 1 to 4b, and when thermal shock (-20° C. to 60° C.) is applied. The conditions of high temperature (50° C.), high humidity (80% RH (relative humidity %RH)), and thermal shock (-20° C. to 60° C.) do not limit the content of this specification.

[0336] In FIG. 42a, the dotted line indicates the acoustic output characteristics when the other signal cable 190 is not configured. The dashed line indicates the acoustic output characteristics when the other signal cable 190 is configured. The solid line indicates the acoustic output characteristics when the other signal cable 190 is configured and the elapsed time is 168 hours. In FIG. 42b, the dotted line indicates the acoustic output characteristics when the other signal cable 190 is not configured. The dashed line indicates the acoustic output characteristics when the other signal cable 190 is configured and the elapsed time is 336 hours. The solid line indicates the acoustic output characteristics when the other signal cable 190 is configured and the elapsed time is 500 hours.

[0337] Referring to FIGS. 42a and 42b, the acoustic output characteristics were maintained at a certain level even after 500 hours at high temperature (50° C.) and high humidity (80% RH (relative humidity %RH)). From this, it can be seen that the contact reliability of the signal line was maintained.

[0338] In FIG. 43, the dotted line indicates the acoustic output characteristics when the other signal cable 190 is not configured. The dashed line indicates the acoustic output characteristics when the other signal cable 190 is configured. The solid line indicates the acoustic output characteristics when the other signal cable 190 is configured and the elapsed time is 144 hours at a low temperature (0°C).

[0339] Referring to FIG. 43, the acoustic output characteristics were maintained at a constant level even after 144 hours had elapsed at a low temperature (0°C). From this, it can be seen that the contact reliability of the signal line was maintained.

[0340] In FIG. 44, the dotted line indicates the acoustic output characteristics when the other signal cable 190 is not configured. The dashed line indicates the acoustic output characteristics when the other signal cable 190 is configured and a thermal shock is applied. The solid line indicates the acoustic output characteristics when the other signal cable 190 is configured and 100 cycles of thermal shock are applied.

[0341] Referring to FIG. 44, the acoustic output characteristics were maintained at a constant level even under a thermal shock (-20°C to 60°C). From this, it can be seen that the contact reliability of the signal line was maintained.

[0342] Referring to FIGS. 42a to 44, the acoustic output characteristics of the device according to the embodiments of this specification were maintained at a constant level even after passing through high-temperature and high-humidity environmental conditions, low-temperature environmental conditions, and thermal shock environmental conditions. From this, it can be seen that the contact reliability of the signal line was maintained.

[0343] The vibration device of the apparatus according to the embodiments of this specification can be applied to or included in mobile devices, video phones, smart watches, watch phones, wearable apparatuses, foldable apparatuses, rollable apparatuses, bendable apparatuses, flexible apparatuses, curved apparatuses, sliding apparatuses, variable apparatuses, electronic notebooks, electronic books, PMPs (portable multimedia players), PDAs (personal digital assistants), MP3 players, mobile medical devices, desktop PCs, laptop PCs, netbook computers, workstations, navigations, vehicle navigations, vehicle display devices, vehicle apparatuses, theater apparatuses, theater display devices, TVs, wallpaper devices, signage devices, game devices, notebook PCs, monitors, cameras, camcorders, and home appliances. And the apparatus of this specification can be applied to or included in organic light-emitting lighting devices or inorganic light-emitting lighting devices.

[0344] The vibration device according to one or more embodiments of this specification and the apparatus including the same can be described as follows.

[0345] The vibration device according to one or more embodiments of this specification can include a vibration part, a film member including at least one signal line connected to the vibration part, and an adhesive member adjacent to the film member and the vibration part with at least one signal line sandwiched therebetween.

[0346] According to one or more embodiments of the present specification, the adhesive member can cover the side surface of at least one signal line.

[0347] According to one or more embodiments of the present specification, the adhesive member can cover the side surface of at least one signal line and be adjacent to the film member and the vibrating portion.

[0348] According to one or more embodiments of the present specification, the adhesive area of the adhesive member adjacent to the film member or the vibrating portion can correspond to 25% or more of the total area of the adhesive member, excluding at least one signal line.

[0349] According to one or more embodiments of the present specification, the adhesive member is disposed between the film member and at least one signal line and can be the same as or less than the width of the film member in a plane.

[0350] According to one or more embodiments of the present specification, the adhesive member can cover at least one signal line and be adjacent to the vibrating portion.

[0351] According to one or more embodiments of the present specification, the adhesive area of the adhesive member adjacent to the vibrating portion can correspond to 25% or more of the total area of the adhesive member, excluding at least one signal line.

[0352] According to one or more embodiments of the present specification, the adhesive member can include a thermoplastic material.

[0353] According to one or more embodiments of the present specification, the vibration device can further include a conductive adhesive member between at least one signal line and the vibrating portion.

[0354] According to one or more embodiments of the present specification, the width of the conductive adhesive member can be the same as or greater than the width of the film member.

[0355] According to one or more embodiments of the present specification, the conductive adhesive member can include a conductive material.

[0356] According to one or more embodiments of the present specification, the conductive adhesive member can include a thermosetting material.

[0357] According to one or more embodiments of the present specification, the thermosetting material can have a stable adhesive force at a temperature equal to or higher than the glass transition temperature of the adhesive member.

[0358] According to one or more embodiments of the present specification, the width of the conductive adhesive member can be the same as or greater than the width of the adhesive member.

[0359] According to one or more embodiments of the present specification, the film member can include a first film member covering the first surface of at least one signal line and a second film member covering the second surface opposite to the first surface of at least one signal line.

[0360] According to one or more embodiments of the present specification, the adhesive member can include a first adhesive member between the first surface of at least one signal line and the first film member and a second adhesive member between the second surface of at least one signal line and the second film member.

[0361] According to one or more embodiments of the present specification, the vibrating part includes a vibrating layer containing a piezoelectric material, a first electrode layer provided on the first vibrating surface, and a second electrode layer provided on the second surface opposite to the first surface of the vibrating layer. The film member can include a first film member on which at least one first signal line connected to the first electrode layer among at least one signal line is arranged, and a second film member on which at least one second signal line connected to the second electrode layer among at least one signal line is arranged.

[0362] According to one or more embodiments of the present specification, the adhesive member includes the first adhesive member and the second adhesive member. The first film member can be connected onto the first surface of the vibrating layer via the first adhesive member, and the second film member can be connected onto the second surface of the vibrating layer via the second adhesive member.

[0363] According to one or more embodiments of the present specification, the vibration device may further include a first protection member disposed on the first vibration surface and a second protection member disposed on the second surface of the vibration layer. The first film member may be disposed between the first surface of the vibration layer and the first protection member, and the second film member may be disposed between the second surface of the vibration layer and the second protection member.

[0364] According to one or more embodiments of the present specification, the vibration device may further include a first adhesive layer disposed between the first vibration surface and the first protection member and covering the first film member, and a second adhesive layer disposed between the second surface of the vibration layer and the second protection member and covering the second film member.

[0365] According to one or more embodiments of the present specification, the vibration layer may include a plurality of inorganic material portions having piezoelectric properties and an organic material portion provided between the plurality of inorganic material portions.

[0366] According to one or more embodiments of the present specification, the portion of the first film member that overlaps the vibration portion may be spaced apart in the width direction from the second film portion that overlaps the vibration portion.

[0367] According to one or more embodiments of the present specification, the portion of the first film member that overlaps the vibration portion and the portion of the second film member that overlaps the vibration portion may be disposed on the opposite side of the vibration portion.

[0368] According to one or more embodiments of the present specification, the vibration device may further include another signal cable connected to the film member. The other signal cable may include a third film member including at least one signal connection terminal connected to at least one signal line, a third adhesive member provided between the at least one signal connection terminal and the third film member, and a fifth adhesive member provided between the at least one signal connection terminal and the at least one signal line and made of a material different from that of the third adhesive member.

[0369] According to one or more embodiments of the present specification, the third adhesive member may include the same material as the adhesive member.

[0370] According to one or more embodiments of the present specification, the third adhesive member can include a thermoplastic material.

[0371] According to one or more embodiments of the present specification, the width of the fifth adhesive member can be the same as or greater than the width of at least one signal connection terminal, and can be smaller than the width of the third adhesive member.

[0372] According to one or more embodiments of the present specification, the fifth adhesive member can include a conductive material.

[0373] According to one or more embodiments of the present specification, the fifth adhesive member can include a thermosetting material.

[0374] According to one or more embodiments of the present specification, at least one signal line and at least one signal connection terminal can be electrically connected by the fifth adhesive member.

[0375] According to one or more embodiments of the present specification, at least one signal line and at least one signal connection terminal can be surrounded by an adhesive member and the third adhesive member.

[0376] According to one or more embodiments of the present specification, at least one signal line, at least one signal connection terminal, and the fifth adhesive member can be surrounded by an adhesive member and the third adhesive member.

[0377] According to one or more embodiments of the present specification, the third film member of another signal cable can cover both sides of at least one signal connection terminal. The other signal cable can further include a fourth film member covering the second surface opposite to the first surface of at least one signal connection terminal, and a fourth adhesive member provided between the second surface of at least one signal connection terminal and the fourth film member.

[0378] According to one or more embodiments of the present specification, the other signal cable can be connected to the other end of the film member opposite to one end of the film member connected to the vibration part.

[0379] According to one or more embodiments of the present specification, the film member is integrally formed with the vibrating portion, and the other signal cable can be bent at least once.

[0380] According to one or more embodiments of the present specification, the adhesive member can cover the entire side surface of at least one signal line and can directly contact the vibrating portion between adjacent signal lines among at least one signal line.

[0381] The vibration generating device according to one or more embodiments of the present specification can include a manual vibrating member and a vibration device connected to the manual vibrating member to vibrate the manual vibrating member. The vibration generating device can include a vibration portion, a film member including at least one signal line connected to the vibration portion, and at least one adhesive member sandwiching at least one signal line and adjacent to the film member and the vibration portion.

[0382] According to one or more embodiments of the present specification, the vibration generating device can further include an enclosure disposed on the back surface of the manual vibrating member and covering the vibration generating device.

[0383] According to one or more embodiments of the present specification, the manual vibrating member can include one or more materials among metal, plastic, paper, fiber, fabric, leather, glass, rubber, carbon, and mirror.

[0384] According to one or more embodiments of the present specification, the manual vibrating member can include one or more of a display panel having pixels for displaying an image, a screen panel onto which an image is projected from a display device, a light-emitting diode lighting panel, an organic light-emitting lighting panel, an inorganic light-emitting lighting panel, a signage panel, an interior material of a transportation means, an exterior material of a transportation means, a glass window of a transportation means, an interior material of a seat of a transportation means, a ceiling material of a transportation means, a ceiling material of a building, an interior material of a building, a glass window of a building, an interior material of an aircraft, a glass window of an aircraft, and a mirror.

[0385] According to one or more embodiments of this specification, the vibration generating device can further include a vibration driving circuit that supplies a vibration driving signal to at least one signal line of the vibration device. The vibration driving circuit can be electrically connected to at least one signal line via another signal cable.

[0386] Although the embodiments of this specification have been described in more detail based on the attached drawings above, this specification is not necessarily limited to such embodiments, and various modifications can be made without departing from the technical idea of this specification. Therefore, the embodiments disclosed in this specification are for the purpose of explanation rather than for limiting the technical idea of this specification, and the scope of the technical idea of this specification is not limited by such embodiments. Therefore, it must be understood that the embodiments described above are exemplary in all aspects and not restrictive. The protection scope of this specification must be interpreted according to the scope of the claims, and all technical ideas within the equivalent scope should be construed as being included in the scope of rights of this specification.

Explanation of Reference Numerals

[0387] 1, 2, 3 Vibration device 10 Vibration part 11 Vibration layer 13 First electrode layer 15 Second electrode layer 30 First cover member 50 Second cover member 90 Signal cable 91 Film member 92 Signal line 93 Adhesive member 95 Conductive adhesive member

Claims

1. A vibrating part, a film member including at least one signal line connected to the vibrating part, and an adhesive member adjacent to the film member and the vibrating part with the at least one signal line sandwiched therebetween, wherein the film member includes a first film member covering a first surface of the at least one signal line, and a second film member covering a second surface of the at least one signal line opposite to the first surface, and the adhesive member includes a first adhesive member provided between the first surface of the at least one signal line and the first film member, and a second adhesive member provided between the second surface of the at least one signal line and the second film member, a vibration device.

2. The vibration device according to claim 1, wherein the adhesive member covers a side surface of the at least one signal line.

3. The vibration device according to claim 1, wherein the adhesive member covers a side surface of the at least one signal line and is adjacent to the film member and the vibrating part.

4. The vibration device according to claim 1, wherein, except for the at least one signal line, an adhesive area of the adhesive member adjacent to the film member or the vibrating part corresponds to 25% or more of a total area of the adhesive member.

5. The vibration device according to claim 1, wherein the adhesive member is disposed between the film member and the at least one signal line and is equal to or less than a width of the film member in a plane.

6. The vibration device according to claim 5, wherein the adhesive member covers the at least one signal line and is adjacent to the vibrating part.

7. The vibration device according to claim 5, wherein, except for the at least one signal line, an adhesive area of the adhesive member adjacent to the vibrating part corresponds to 25% or more of a total area of the adhesive member.

8. The vibration device according to claim 5, wherein the adhesive member includes a thermoplastic substance.

9. The vibration device according to claim 1, further including a conductive adhesive member provided between the at least one signal line and the vibrating part.

10. The vibration device according to claim 9, wherein a width of the conductive adhesive member is equal to or more than a width of the film member.

11. The vibration device according to claim 9, wherein the conductive adhesive member includes a conductive substance.

12. The vibration device according to claim 9, wherein the conductive adhesive member includes a thermosetting substance.

13. The vibration device according to claim 12, wherein the thermosetting substance has a stable adhesive force at a temperature equal to or higher than the glass transition temperature of the adhesive member.

14. The vibration device according to claim 9, wherein the width of the conductive adhesive member is equal to or greater than the width of the adhesive member.

15. The vibrating portion includes a vibrating layer containing a piezoelectric substance, a first electrode layer provided on a first surface of the vibrating layer, and a second electrode layer provided on a second surface of the vibrating layer opposite to the first surface, the first film member includes at least one first signal line connected to the first electrode layer among the at least one signal line, the second film member includes at least one second signal line connected to the second electrode layer among the at least one signal line, the vibration device according to claim 1.

16. The first film member is connected onto the first surface of the vibrating layer via the first adhesive member, the second film member is connected onto the second surface of the vibrating layer via the second adhesive member, the vibration device according to claim 15.

17. further including a first protective member disposed on the first surface of the vibrating layer, and a second protective member disposed on the second surface of the vibrating layer, the first film member is disposed between the first surface of the vibrating layer and the first protective member, the second film member is disposed between the second surface of the vibrating layer and the second protective member, the vibration device according to claim 15.

18. a first adhesive layer disposed between the first surface of the vibrating layer and the first protective member and covering the first film member, and a second adhesive layer disposed between the second surface of the vibrating layer and the second protective member and covering the second film member, the vibration device according to claim 17.

19. The vibrating layer includes a plurality of inorganic substance portions having piezoelectric characteristics, and an organic substance portion provided between the plurality of inorganic substance portions, the vibration device according to claim 15.

20. The portion of the first film member that overlaps the vibrating portion is spaced apart from the portion of the second film member that overlaps the vibrating portion in the width direction, the vibration device according to claim 15.

21. The portion of the first film member that overlaps the vibrating portion and the portion of the second film member that overlaps the vibrating portion are disposed on opposite sides of the vibrating portion, the vibration device according to claim 20.

22. Further comprising another signal cable connected to the film member, The other signal cable is, A third film member including at least one signal connection terminal connected to the at least one signal line, A third adhesive member provided between the at least one signal connection terminal and the third film member, The vibration device according to claim 1, further comprising: a fifth adhesive member provided between the at least one signal connection terminal and the at least one signal line and made of a material different from that of the third adhesive member.

23. The vibration device according to claim 22, wherein the third adhesive member includes the same material as the adhesive member.

24. The vibration device according to claim 22, wherein the third adhesive member includes a thermoplastic material.

25. The vibration device according to claim 22, wherein the width of the fifth adhesive member is the same as or greater than the width of the at least one signal connection terminal and smaller than the width of the third adhesive member.

26. The vibration device according to claim 22, wherein the fifth adhesive member includes a conductive material.

27. The vibration device according to claim 22, wherein the fifth adhesive member includes a thermosetting material.

28. The vibration device according to claim 22, wherein the at least one signal line and the at least one signal connection terminal are electrically connected via the fifth adhesive member.

29. The vibration device according to claim 22, wherein the at least one signal line and the at least one signal connection terminal are surrounded by the adhesive member and the third adhesive member.

30. The vibration device according to claim 22, wherein the at least one signal line, the at least one signal connection terminal, and the fifth adhesive member are surrounded by the adhesive member and the third adhesive member.

31. The third film member of the other signal cable covers both sides of the at least one signal connection terminal, The other signal cable is, A fourth film member covering a second surface opposite to the first surface of the at least one signal connection terminal, The vibration device according to claim 22, further comprising: a fourth adhesive member provided between the second surface of the at least one signal connection terminal and the fourth film member.

32. The vibration device according to claim 22, wherein the other signal cable is connected to the other end of the film member opposite to one end of the film member connected to the vibration unit.

33. The film member is configured integrally with the vibrating part, The vibration device according to claim 22, wherein the other signal cable is bent at least once.

34. The vibration device according to claim 1, wherein the adhesive member covers the entire side surface of the at least one signal line and is in direct contact with the vibrating part between adjacent signal lines among the at least one signal line.

35. A manual vibration member, A vibration device connected to the manual vibration member and vibrating the manual vibration member, The vibration generating device, wherein the vibration device includes any one of the vibration devices of claims 1 to 34.

36. The vibration generating device according to claim 35, further including an enclosure disposed on the back surface of the manual vibration member and covering the vibration device.

37. The vibration generating device according to claim 35, wherein the manual vibration member includes one or more materials among metal, plastic, paper, fiber, fabric, leather, glass, rubber, carbon, and mirror.

38. The manual vibration member includes one or more of a display panel having pixels for displaying an image, a screen panel onto which an image is projected from a display device, a light-emitting diode lighting panel, an organic light-emitting lighting panel, an inorganic light-emitting lighting panel, a signage panel, an interior material of a transportation means, an exterior material of a transportation means, a glass window of a transportation means, an interior material of a seat of a transportation means, a ceiling material of a transportation means, a ceiling material of a building, an interior material of a building, a glass window of a building, an interior material of an aircraft, a glass window of an aircraft, and a mirror. The vibration generating device according to claim 35.

39. The vibration generating device according to claim 35, further including a vibration drive circuit that supplies a vibration drive signal to the at least one signal line of the vibration device, The vibration drive circuit is electrically connected to the at least one signal line via another signal cable. The vibration generating device according to claim 35.

Images