Sound device and electronic device including the same

Abstract

A sound device includes a first vibration member, a second vibration member adjacent to the first vibration member, a third vibration member adjacent to the second vibration member, a first vibration apparatus configured to vibrate the first vibration member and the second vibration member and output a sound of a first pitch band and a sound of a second pitch band different from the first pitch band, and a second vibration apparatus disposed at a rear surface of the third vibration member and configured to vibrate the third vibration member and output a sound of a third pitch band different from the first pitch band.

Description

Technical Field

[0001] This disclosure relates to sound devices and electronic devices including those thereto. Background Technology

[0002] The equipment includes a separate loudspeaker or sound device for providing sound. When loudspeakers are placed in the equipment, the design and spatial arrangement of the equipment become limited due to the space occupied by the loudspeakers.

[0003] A loudspeaker used in a device can be, for example, an actuator comprising a magnet and a coil. However, when an actuator is applied to a device, its thickness is a drawback. Piezoelectric devices, which aim to achieve thinness, have attracted considerable attention.

[0004] Piezoelectric devices are easily damaged by external impacts due to their fragile nature, resulting in low reliability of sound reproduction. Summary of the Invention

[0005] The inventors have recognized the aforementioned problems and have conducted various experiments to realize a sound device capable of outputting a wide-pitched vocal range and enhancing sound pressure level characteristics. Through these experiments, the inventors have invented a novel sound device that includes the ability to output a wide-pitched vocal range and enhance sound pressure level characteristics.

[0006] Therefore, embodiments of this disclosure relate to sound devices and electronic devices including the same that substantially eliminate one or more problems caused by limitations and disadvantages of related technologies.

[0007] One aspect of this disclosure is to provide a device that can cause a vibrating component to vibrate to produce vibration or sound and can enhance sound characteristics and / or sound pressure level characteristics.

[0008] Another aspect of this disclosure is to provide a sound device that includes a sound apparatus that can cause a vibrating member to vibrate to produce vibration or sound and can output a sound with a wide pitch band.

[0009] Additional aspects of this disclosure will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practicing the inventive concept provided herein. Other features and aspects of the inventive concept may be realized and obtained by means of structures particularly pointed out in the written description or from which they may be derived, as well as by the appended claims and drawings.

[0010] To achieve these and other aspects of the inventive concept, as implemented and broadly described herein, a sound device includes: a first vibrating member; a second vibrating member adjacent to the first vibrating member; a third vibrating member adjacent to the second vibrating member; a first vibrating device configured to vibrate the first and second vibrating members and output sounds of different first and second tone vocal cords; and a second vibrating device disposed on the rear surface of the third vibrating member and configured to vibrate the third vibrating member and output sounds of a third tone vocal cord different from the sounds of the first tone vocal cords.

[0011] In another aspect, an electronic device includes a passively vibrating member and a sound device disposed on the rear surface of the passively vibrating member. The passively vibrating member comprises a metallic material, or one or more single or composite non-metallic materials selected from wood, rubber, plastic, glass, fiber, cloth, paper, mirror, and leather. For example, the sound device includes: a first vibrating member; a second vibrating member adjacent to the first vibrating member; a third vibrating member adjacent to the second vibrating member; a first vibrating device configured to vibrate the first and second vibrating members and output sounds from different first-tone vocal cords and second-tone vocal cords; and a second vibrating device disposed on the rear surface of the third vibrating member and configured to vibrate the third vibrating member and output sounds from a third-tone vocal cord different from the sounds from the first-tone vocal cords.

[0012] In another aspect, an electronic device includes a passively vibrating member and a sound device disposed on the rear surface of the passively vibrating member. The passively vibrating member includes one or more of a display panel, a light-emitting diode (LED) illumination panel, an organic light-emitting diode (OLED) illumination panel, and an inorganic light-emitting diode (LED) illumination panel having pixels configured to display an image. For example, the sound device includes a first vibrating member; a second vibrating member adjacent to the first vibrating member; a third vibrating member adjacent to the second vibrating member; a first vibrating device configured to vibrate the first and second vibrating members and output sounds from different first and second tone vocal cords; and a second vibrating device disposed on the rear surface of the third vibrating member and configured to vibrate the third vibrating member and output sounds from a third tone vocal cord different from the sounds from the first tone vocal cords.

[0013] In another aspect, an electronic device includes a passively vibrating member and a sound device disposed on the rear surface of the passively vibrating member. The passively vibrating member includes one or more of the following: a display panel including pixels configured to display images; a screen panel on which images from a display device are projected; a lighting panel; a sign panel; vehicle interior materials; vehicle windows; vehicle exterior materials; building ceiling materials; building interior materials; building windows; aircraft interior materials; aircraft windows; metals; wood; rubber; plastics; glass; fibers; cloth; paper; leather; and mirrors. For example, the sound device includes a first vibrating member; a second vibrating member adjacent to the first vibrating member; a third vibrating member adjacent to the second vibrating member; a first vibrating device configured to vibrate the first and second vibrating members and output sounds from different first and second tone vocal cords; and a second vibrating device disposed on the rear surface of the third vibrating member and configured to vibrate the third vibrating member and output sounds from a third tone vocal cord different from the sound from the first tone vocal cord.

[0014] Other systems, methods, features, and advantages will be or will become apparent to those skilled in the art upon review of the following drawings and detailed description. All such additional systems, methods, features, and advantages are intended to be included in this specification, falling within the scope of this disclosure and protected by the appended claims. Nothing in this section should be construed as limiting these claims. Other aspects and advantages are discussed below in conjunction with embodiments of this disclosure.

[0015] It should be understood that both the foregoing general description and the following detailed description are exemplary and explanatory, and are intended to provide further explanation of the claimed inventive concept.

[0016] Postscript: Appendix 1. A sound device, said sound device comprising: First vibrating component; A second vibration component, which is adjacent to the first vibration component; A third vibration component, which is adjacent to the second vibration component; A first vibration device, configured to vibrate the first vibrating member and the second vibrating member and output sounds from the first and second tone vocal cords respectively; and A second vibration device is disposed on the rear surface of the third vibration member and configured to cause the third vibration member to vibrate and output a sound of a third tone vocal cord that is different from the sound of the first tone vocal cord.

[0017] Appendix 2. The sound device according to Appendix 1, wherein the first vibration device is configured to vibrate the first vibration member to produce the sound of the first tone vocal cord, and to vibrate the second vibration member to produce the sound of the second tone vocal cord.

[0018] Appendix 3. The sound device according to Appendix 1, wherein the second vibrating member is configured to surround the first vibrating member, and

[0019] The third vibration member is configured to surround the first vibration member and the second vibration member.

[0020] Appendix 4. The sound device according to Appendix 1, wherein the second vibrating member is configured to be separate from the first vibrating member, and

[0021] The third vibration member is configured to be separate from the second vibration member, and a gap space is inserted between the third vibration member and the second vibration member.

[0022] Note 5. The sound device according to Note 1, wherein the second vibrating member is located around the first vibrating member.

[0023] Note 6. The sound device according to Note 1, wherein the third vibrating member is located around the second vibrating member.

[0024] Appendix 7. The sound device according to Appendix 1, wherein the first vibration device comprises: Vibrating part; A first electrode portion, the first electrode portion being located at a first surface of the vibrating portion; and The second electrode portion is located on a surface of the vibrating portion that is different from the first surface.

[0025] Note 8. The sound device according to Note 7, wherein the vibrating part comprises one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0026] Appendix 9. The sound device according to Appendix 7, wherein the vibrating portion comprises a plurality of first portions and a plurality of second portions located between the plurality of first portions, the plurality of second portions comprising organic material, and

[0027] Each of the plurality of first parts includes one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0028] Note 10. The sound device according to Note 7 further includes: A first cover member, the first cover member being located at the first electrode portion; and The second cover member is located at the second electrode portion.

[0029] Note 11. The sound device according to Note 1 further includes: A first adhesive member is located between the first vibrating device and each of the first vibrating member and the second vibrating member; and A second adhesive component is located between the third vibrating component and the first vibrating device.

[0030] Note 12. The sound device according to Note 11, wherein the modulus of the first adhesive member is different from the modulus of the second adhesive member.

[0031] Note 13. The sound device according to Note 11, wherein the modulus of the first adhesive member is greater than the modulus of the second adhesive member.

[0032] Note 14. The sound device according to Note 11, wherein the thickness of the first adhesive member is different from the thickness of the second adhesive member.

[0033] Note 15. The sound device according to Note 11, wherein the thickness of the first adhesive member is less than the thickness of the second adhesive member.

[0034] Appendix 16. The sound device according to Appendix 1, wherein the second vibration device comprises: frame; A spool, the spool being located on the frame; A magnet component, wherein the magnet component is disposed inside or outside the spool; A coil, the coil being wound around the spool; and A damper is connected between the frame and the spool.

[0035] Note 17. The sound device according to Note 16, wherein the third vibrating member further includes a recessed portion and a protruding portion, and

[0036] The spool overlaps with the protruding portion.

[0037] Appendix 18. The sound device according to Appendix 1, wherein the first pitch vocal cords include high-pitched vocal cords. The second tone vocal cords include the mid-tone vocal cords, and The third tone vocal cord includes the low tone vocal cord.

[0038] Note 19. The sound device according to Note 1, wherein the second vibrating member extends into a portion of the first vibrating device.

[0039] Note 20. The sound device according to Note 1, wherein the second vibrating member protrudes toward the outer portion of the first vibrating device.

[0040] Note 21. The sound device according to Note 1, wherein the second vibrating member overlaps with the first vibrating device.

[0041] Note 22. The sound device according to Note 1, wherein the third vibrating member overlaps with the second vibrating device.

[0042] Appendix 23. The sound device according to Appendix 1, wherein the third vibrating member further includes a recessed portion and a protruding portion, and

[0043] The first vibration member and the second vibration member are disposed in the recessed portion.

[0044] Appendix 24. The sound device according to Appendix 1, wherein the second vibrating member protrudes towards the outer portion of the first vibrating device, and

[0045] The sound device further includes a fourth vibration component disposed in the space between the second vibration component and the third vibration component.

[0046] Note 25. The sound device according to Note 24, wherein the fourth vibrating member is configured to fill all the space between the second vibrating member and the third vibrating member.

[0047] Appendix 26. The sound device according to Appendix 24, wherein the third vibrating member further includes a recessed portion and a protruding portion, and

[0048] The first vibration member, the second vibration member, and the fourth vibration member are disposed in the recessed portion.

[0049] Note 27. The sound device according to Note 24, wherein the fourth vibrating member outputs a low-pitched sound.

[0050] Note 28. The sound device according to Note 24, wherein the fourth vibrating member comprises one or more of paper, synthetic resin and metal.

[0051] Note 29. The sound device according to Note 1, wherein the first vibrating component comprises one or more of ceramic, metal, diamond, synthetic resin and silk.

[0052] Note 30. The sound device according to Note 1, wherein the second vibrating member and the third vibrating member comprise one or more of paper, synthetic resin and metal.

[0053] Appendix 31. An electronic device, said electronic device comprising: Passive vibration components; and The sound device according to any one of Appendices 1 to 30 is disposed on the rear surface of the passively vibrating member.

[0054] Note 32. The electronic device according to Note 31, The passive vibration component includes metallic materials, or one or more single or composite non-metallic materials selected from wood, rubber, plastic, glass, fiber, cloth, paper, mirror and leather.

[0055] Note 33. The electronic device according to Note 31, The passive vibration component includes one or more of a display panel, a light-emitting diode illumination panel, an organic light-emitting diode illumination panel, and an inorganic light-emitting diode illumination panel having pixels configured to display images.

[0056] Note 34. The electronic device according to Note 31, The passive vibration component includes one or more of the following: a display panel comprising pixels configured to display images, a screen panel on which images from a display device are projected, a lighting panel, a sign panel, vehicle interior materials, vehicle windows, vehicle exterior materials, building ceiling materials, building interior materials, building windows, aircraft interior materials, aircraft windows, metal, wood, rubber, plastic, glass, fiber, cloth, paper, leather, and mirrors.

[0057] Note 35. The electronic device according to Note 31 further includes: A connecting member configured to connect the sound device to the rear surface of the passive vibrating member and including a hollow portion disposed between the sound device and the passive vibrating member. Attached Figure Description

[0058] The accompanying drawings are included to provide a further understanding of the present disclosure and are incorporated in and constitute a part of this application. The drawings illustrate aspects and embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0059] Figure 1 An example of a sound device according to an embodiment of the present disclosure is shown.

[0060] Figure 2 It is along Figure 1 The cross-sectional view taken from line II′.

[0061] Figure 3 An example of a sound device according to an embodiment of the present disclosure is shown.

[0062] Figures 4A to 4F An example is shown of the vibration portion of a sound device according to an embodiment of the present disclosure.

[0063] Figure 5 It is along Figure 1 Another cross-sectional view taken from line II′.

[0064] Figure 6 It is along Figure 1 Another cross-sectional view taken from line II′.

[0065] Figure 7 An example of a sound device according to another embodiment of the present disclosure is shown.

[0066] Figure 8 It is along Figure 7 The cross-sectional view taken from line II-II′.

[0067] Figure 9 It is along Figure 7 Another cross-sectional view taken from line II-II′.

[0068] Figure 10 An apparatus according to an embodiment of the present disclosure is illustrated.

[0069] Figure 11 It is along Figure 10 The cross-sectional view taken from line III-III′.

[0070] Throughout the accompanying drawings and detailed description, unless otherwise described, the same reference numerals should be understood to refer to the same elements, features, and structures. For clarity, illustrative purposes, the relative dimensions and illustrations of these elements may be exaggerated. Detailed Implementation

[0071] Descriptions of embodiments of the present disclosure will now be given in detail, examples of which are illustrated in the accompanying drawings. In the following description, detailed descriptions of well-known functions or configurations may be omitted where such descriptions may unnecessarily obscure aspects of the present disclosure. The described progression of processing steps and / or operations is exemplary; however, the order of steps and / or operations is not limited to those set forth herein and may be varied as is known in the art, except for steps and / or operations that must occur in a specific order. Unless otherwise stated, similar reference numerals always refer to similar elements. The names of corresponding elements used in the following description are chosen solely for ease of writing and may therefore differ from those used in actual products.

[0072] The advantages and features of this disclosure, and its implementation methods, will be illustrated by the following description of embodiments with reference to the accompanying drawings. However, this disclosure may be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of this disclosure to those skilled in the art. Furthermore, this disclosure is limited only by the scope of the claims.

[0073] The shapes, dimensions, scales, angles, quantities, etc., disclosed in the accompanying drawings for the purpose of describing embodiments of this disclosure are merely examples, and therefore, this disclosure is not limited to the details shown. Similar reference numerals always refer to similar elements. In the following description, detailed descriptions of related known functions or configurations will be omitted when it is determined that they unnecessarily obscure the focus of this disclosure. When using terms such as "comprising," "having," "including," "containing," "constituting," "composed of," "formed from," etc., one or more other elements may be added unless a term such as "only" is used. Unless the context clearly indicates otherwise, singular terms may include plural forms.

[0074] When interpreting an element, it is interpreted as including such an error or tolerance range, even if no explicit description of such an error or tolerance range is provided.

[0075] In describing positional relationships, for example, when using terms such as "above," "over," "below," "on top," "below," "below," "near," "close to," "adjacent," "side," or "next to" to describe the positional relationship between two components, one or more other components may be positioned between the two components, unless more restrictive terms such as "immediately," "directly," or "closely" are used. For example, when a structure is described as being "above," "below," "over," "below," "near," "side," or "next to" another structure, or "close to" or "adjacent to" another structure, the description should be interpreted to include situations where the structures are in contact with each other and situations where a third structure is positioned or inserted between them. Furthermore, the terms "front," "back," "left," "right," "top," "bottom," "downward," "upward," "above," "below," etc., refer to any reference frame.

[0076] When describing temporal relationships, such as when time sequence is described as “after,” “following,” “next,” “before,” “prior to,” etc., discontinuous situations may be included unless more restrictive terms such as “just,” “immediately,” or “directly” are used.

[0077] It will be understood that although the terms “first,” “second,” etc., may be used herein to describe various elements, these elements should not be limited by these terms. These terms are used only to distinguish one element from another. For example, without departing from the scope of this disclosure, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element.

[0078] In describing the elements of this disclosure, the terms “first,” “second,” “A,” “B,” “(a),” “(b),” etc., may be used. These terms are intended to distinguish the corresponding element from other elements, and the nature, order, or number of the corresponding elements shall not be limited by these terms. The expression that an element is “connected,” “joined,” or “adhered” to another element or layer means that, unless otherwise stated, the element or layer may not only be directly connected or adhered to another element or layer, but also indirectly connected or adhered to another element or layer, and one or more intermediate elements or layers are “set” or “interposed” between these elements or layers.

[0079] The term "at least one" should be understood to include any combination of one or more of the associated listed items. For example, "at least one of the first, second and third items" means a combination of all items proposed from two or more of the first, second and third items, as well as the first, second or third item.

[0080] The expressions "first element," "second element," and " / or" "third element" should be understood as one of the first element, the second element, and the third element, or any combination of the first element, the second element, and the third element. For example, A, B, and / or C can refer to: only A; only B; only C; any or some combination of A, B, and C; or all of A, B, and C.

[0081] Features of the various embodiments of this disclosure may be linked or combined with each other in part or in whole, and may interoperate with each other and be technically driven in various ways, as will be fully understood by those skilled in the art. Embodiments of this disclosure may be implemented independently of each other or may be implemented together in a dependent relationship.

[0082] In the following, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. For ease of description, the scale of each element shown in the drawings differs from the actual scale, and therefore the scope is not limited to the scale shown in the drawings.

[0083] Figure 1 An example of a sound device according to an embodiment of the present disclosure is shown. Figure 2 It is along Figure 1 The cross-sectional view taken from line II′.

[0084] Reference Figure 1 and Figure 2 According to embodiments of the present disclosure, the sound device 1 may include a vibration device and a vibration member. For example, the vibration member may be disposed at the support portion 10.

[0085] According to embodiments of this disclosure, the vibration member may include one or more vibration members. For example, the vibration member may include a first vibration member 20, a second vibration member 30, and a third vibration member 40.

[0086] For example, the second vibrating member 30 may be located around the periphery of the first vibrating member 20. For example, the second vibrating member 30 may be configured to be separate from the first vibrating member 20. For example, the second vibrating member 30 may be configured to be separate from the third vibrating member 40, with a gap space inserted therebetween.

[0087] For example, the third vibrating member 40 may be located around the second vibrating member 30. The third vibrating member 40 may be located around the first vibrating member 20 and the second vibrating member 30. The third vibrating member 40 may surround the first vibrating member 20 and the second vibrating member 30. The third vibrating member 40 may include a protruding portion 41 and a recessed portion 42. For example, the first vibrating member 20 and the second vibrating member 30 may be disposed within the recessed portion 42 of the third vibrating member 40.

[0088] For example, the second vibrating member 30 may be configured to protrude toward the third vibrating member 40. Alternatively, the second vibrating member 30 may be configured to protrude toward the outer portion of the first vibrating device 200. Therefore, a gap space GS can be formed between the first vibrating device 200 and the third vibrating member 40. For example, the gap space GS may be disposed between the recessed portion 42 of the third vibrating member 40 and / or the second vibrating member 30. A device can be provided for outputting sufficient sound based on the vibration of the first vibrating device 200 using the gap space GS. For example, the sound waves (or sound pressure levels) based on the vibration of the first vibrating device 200 may not disperse, and airflow may be trapped in the gap space GS. Therefore, the vibration loss of the first vibrating device 200 can be reduced or minimized, thereby increasing the sound pressure level characteristics and / or sound characteristics of the sound generated based on the vibration of the second vibrating member 30. For example, the gap space GS may be a vibration space driven by the first vibrating device 200, or it may be a sound pressure level space (or sound-generating portion) in which the sound pressure level is generated based on the vibration of the first vibrating device 200, but embodiments of this disclosure are not limited thereto.

[0089] According to embodiments of this disclosure, the vibration device may include one or more vibration devices. For example, the vibration device may include a first vibration device 200 and a second vibration device 400.

[0090] For example, the first vibration device 200 may be disposed on the rear surface of each of the first vibration member 20 and the second vibration member 30. The first vibration device 200 may overlap with one or more of the first vibration member 20 and the second vibration member 30. For example, the first vibration device 200 may overlap with all of the first vibration member 20.

[0091] For example, the second vibrating member 30 may extend toward a portion or one side of the first vibrating device 200. The first vibrating device 200 may overlap with the second vibrating member 30. For example, the first vibrating device 200 may overlap with a portion of the second vibrating member 30. The first vibrating member 20 may be located at the center of the first vibrating device 200, and the second vibrating member 30 may be located at the edge (or periphery) of the first vibrating device 200. For example, the first vibrating member 20 may be located at the center of the first vibrating device 200, while the second vibrating member 30 may be located at both edges (or both peripheries) of the first vibrating device 200. The first vibrating device 200 may be located between the first vibrating member 20, the second vibrating member 30, and the third vibrating member 40.

[0092] For example, the first vibrating member 20, the second vibrating member 30, and the first vibrating device 200 may be located between adjacent third vibrating members 40. For example, the third vibrating member 40 may overlap with the second vibrating device 400.

[0093] According to embodiments of this disclosure, the first vibration device 200 may be a diaphragm vibration device. Reference will be made below. Figures 3 to 4F Describe the first vibrating device 200.

[0094] For example, the first vibration device 200 may include a piezoelectric material. The first vibration device 200 may include a ceramic material. For example, the first vibration device 200 may include lead zirconate titanate (PZT), lead magnesium niobate-lead titanate (PMN-PT), lead zirconate niobate-lead titanate (PZN-PT), microfiber composite (MFC), BaTiO3, PbTiO3, Na-K-Nb (NKN), and polyvinylidene fluoride (PVDF), but embodiments of this disclosure are not limited thereto.

[0095] According to embodiments of this disclosure, the first vibrating member 20, the second vibrating member 30, and the third vibrating member 40 may include materials with different hardness. For example, the first vibrating member 20, the second vibrating member 30, and the third vibrating member 40 may include materials for outputting sounds from vocal cords of different pitches, and may be configured as a sound device for outputting sounds from vocal cords of different pitches.

[0096] According to embodiments of this disclosure, the first vibrating member 20 may include a material with a hardness different from that of the second vibrating member 30. For example, the first vibrating member 20 may include a material with a higher hardness than the second vibrating member 30. For example, the first vibrating member 20 may include ceramics, metals, diamond, synthetic resins, and silk, but embodiments of this disclosure are not limited thereto. For example, the metal may be aluminum (Al), magnesium (Mg), titanium (Ti), and their alloys, but embodiments of this disclosure are not limited thereto. For example, the synthetic resin may be polypropylene, but embodiments of this disclosure are not limited thereto. For example, the second vibrating member 30 may be paper, metals, and synthetic resins, but embodiments of this disclosure are not limited thereto. For example, the metal may be Al, Mg, Ti, and their alloys, but embodiments of this disclosure are not limited thereto. For example, the synthetic resin may be polypropylene, but embodiments of this disclosure are not limited thereto.

[0097] According to embodiments of this disclosure, the first vibrating member 20 and the second vibrating member 30 can output sound based on the vibration of the first vibrating device 200. For example, the first vibrating member 20 and the second vibrating member 30 can vibrate based on a drive signal of the first vibrating device 200 to output sound. The first vibrating member 20 and the second vibrating member 30 can output sounds from different pitch vocal bands. For example, the first vibrating member 20 and the second vibrating member 30 can include different materials, thus enabling the output of sounds from different pitch vocal bands. For example, the first vibrating member 20 can output the sound of a first pitch vocal band, and the second vibrating member 30 can output the sound of a pitch vocal band different from the first pitch vocal band. The first pitch vocal band can be the sound of a high-pitched vocal band. For example, the high-pitched vocal band can be 3 kHz or higher, but embodiments of this disclosure are not limited thereto. For example, the first vibrating member 20 can be a tweeter, but the terminology is not limited thereto. The second pitch vocal band can be the sound of a mid-pitched vocal band. For example, the mid-pitched vocal band can be 200 Hz to 3 kHz, but embodiments of this disclosure are not limited thereto. For example, the second vibrating member 30 may be mid-range, but the terminology is not limited thereto. For example, the first vibrating device 200 may cause the first vibrating member 20 and the second vibrating member 30 to vibrate, thus enabling the output of mid-to-high pitch vocal cord sounds.

[0098] According to embodiments of this disclosure, the first vibration device 200 can output sound by using a first vibration member 20 and a second vibration member 30 as vibrating plates toward the front surface of each of the first vibration member 20 and the second vibration member 30. For example, the first vibration device 200 can generate sound such that the sound travels toward the front surface of each of the first vibration member 20 and the second vibration member 30. The first vibration device 200 can cause the first vibration member 20 and the second vibration member 30 to vibrate to output sound. For example, the first vibration device 200 can directly vibrate the first vibration member 20 and the second vibration member 30 to output sound. For example, the first vibration member 20 and the second vibration member 30 can each be a vibrating plate or an active vibration member, but embodiments of this disclosure are not limited thereto. For example, the first vibration device 200 can cause the first vibration member 20 and the second vibration member 30 to vibrate to output sounds from a first tone vocal cord and a second tone vocal cord that are different from the sound from the first tone vocal cord. For example, the first vibration device 200 can cause the first vibration member 20 and the second vibration member 30 to vibrate to output sounds from a first tone vocal cord and sounds from a second tone vocal cord that are different from the sound from the first tone vocal cord.

[0099] According to embodiments of this disclosure, the second vibration device 400 may be disposed on the rear surface of the third vibration member 40. For example, the second vibration device 400 may overlap with the third vibration member 40.

[0100] According to embodiments of this disclosure, the second vibration device 400 may be a coil-type vibration device.

[0101] For example, the second vibration device 400 may include a spool 402, a magnet component 403, and a coil 404. The second vibration device 400 may also include a frame 401, a central pole 405, and a damper 406.

[0102] The frame 401 may include the frame body 401a, the upper plate 401b, and the fixed bracket 401c.

[0103] The frame body 401a may be a lower plate supporting the magnet component 403. The upper plate 401b may be disposed at the front edge (or front periphery) of the frame body 401a, having a cylindrical shape including a hollow portion. The frame body 401a and the upper plate 401b may be configured as a single unit having a U-shape. For example, the frame body 401a and the upper plate 401b may be referred to by other terms such as a yoke.

[0104] The fixing bracket 401c can protrude from the side surface of the upper plate 401b. The fixing bracket 401c can be fixed to the support portion 10 by an adhesive member. Therefore, the frame 401 can be fixed or connected to the support portion 10. For example, the adhesive member 450 may include single-sided tape, single-sided adhesive pad, single-sided adhesive gap pad, single-sided adhesive foam pad, double-sided tape, double-sided adhesive pad, double-sided adhesive gap pad, or double-sided adhesive foam pad, but embodiments of this disclosure are not limited thereto.

[0105] The spool 402 may be mounted on the frame 401. According to embodiments of the present disclosure, the spool 402 may be implemented as including a hollow portion 402a and may be connected or coupled to the rear surface of the support portion 10. For example, the spool 402 may be implemented as a ring-shaped (or cylindrical) structure formed from a material made by processing pulp or paper, Al or Mg or alloys thereof, synthetic resins such as polypropylene, or polyamide-based fibers, but embodiments of the present disclosure are not limited thereto. The spool 402 may vibrate the third vibrating member 40 based on magnetic vibration (e.g., performing vertical reciprocating motion).

[0106] The spool 402 according to embodiments of the present disclosure may have a circular or oval shape, but embodiments of the present disclosure are not limited thereto. The oval-shaped spool 402 may have an elliptical shape, a rectangular shape with rounded corners, or a non-circular curved surface shape with a width different from its height, but embodiments of the present disclosure are not limited thereto. For example, in the oval-shaped spool 402, the ratio of the major axis diameter to the minor axis diameter can be adjusted to 1.3:1 to 2:1. The oval-shaped spool 402 can improve the sound of the high vocal cords better than a circular shape and can reduce the generation of heat caused by vibration, thus exhibiting excellent heat dissipation characteristics.

[0107] A magnet component 403 may be disposed on a frame 401. The magnet component 403 may be disposed inside or outside the linear shaft 420. For example, the magnet component 403 may be disposed on the frame 401 to be received within the hollow portion 402a of the linear shaft 402. The magnet component 403 may be a permanent magnet inserted into or received within the hollow portion 402a of the linear shaft 402. The magnet component 403 according to embodiments of this disclosure may be implemented using a sintered magnet such as barium ferrite, and the material of the magnet component 403 may include one or more of Fe2O3, BaCO3, neodymium magnets, strontium ferrites with improved magnet compositions, alloy cast magnets containing Al, nickel (Ni), and cobalt (Co), but embodiments of this disclosure are not limited thereto. For example, the neodymium magnet may be neodymium iron boron (Nd-Fe-B), but embodiments of this disclosure are not limited thereto.

[0108] Coil 404 may be wound around the outer circumference of spool 732 and may be supplied with sound signals (or voice signals) from the outside. When a sound signal (or current) is applied to coil 404, the entire portion of spool 402 may vibrate (e.g., perform vertical reciprocating motion) according to Fleming's left-hand rule based on the applied magnetic field generated around coil 404 and the external magnetic field generated around magnet member 403. Coil 404 may rise and fall together with spool 402. For example, coil 404 may be called a voice coil, but embodiments of this disclosure are not limited thereto.

[0109] A central pole 405 may be disposed on the magnet member 403. The central pole 405 may guide the vibration of the spool 402. For example, the central pole 405 may be inserted into or accommodated in the hollow portion 402a of the spool 402, and thus may be surrounded by the spool 402. For example, the central pole 405 may be referred to as a height guide or pole piece, but embodiments of this disclosure are not limited thereto.

[0110] A damper 406 may be disposed between the frame 401 and the spool 402. According to embodiments of the present disclosure, the damper 406 may be disposed between the frame body 401a of the frame 401 and the upper outer peripheral surface of the spool 402. The damper 406 may be configured with a folded structure between one end and the other, thus allowing it to contract and relax based on the vibration of the spool. The damper 406 can limit the vibration distance (or vertical movement distance) of the spool 402 by using a restoring force. For example, when the spool 402 moves a certain distance or more, or vibrates a certain distance or less, the spool 402 can return to its original position using the restoring force of the damper 406. The damper 736 may be referred to by other terms such as cross-shaped shaft, cantilever, or edge, but the terminology is not limited thereto.

[0111] The second vibration device 400 according to an embodiment of the present disclosure can be implemented as an internal magnet type (or miniature) in which a magnet component 403 is inserted into or accommodated in the hollow portion 402a of the linear shaft 402.

[0112] According to another embodiment of this disclosure, the second vibration device 400 can be implemented as an external magnet type (or dynamic type) in which the magnet member 403 is configured to surround the outer or outer portion of the spool 402. Here, except that the magnet member 403 is disposed between the lower plate 401a and the upper plate 401b and a central pole 405 is provided on the lower plate 401a for insertion into or accommodation in the hollow portion 402a of the spool 402, the second vibration device 400 with the external magnet type is the same as the vibration device with the internal magnet type, and therefore its detailed description is omitted.

[0113] The second vibration device 400 according to an embodiment of the present disclosure may further include a spindle protection member 407 disposed between the upper part of the spindle 402 and the support portion 10.

[0114] The spool protector 407 can be configured as a cylindrical structure including an opening that overlaps with the hollow portion 402a of the spool 402. For example, the spool protector 407 can be attached to the upper surface of the spool 402. The spool protector 407 can cover the upper surface of the spool 402 to protect the spool 402, thereby preventing the spool 402 from deforming due to external impact.

[0115] The spool protection member 407 according to embodiments of the present disclosure can be configured in the form of injection-molded material or metal. For example, the spool protection member 407 may include fiber-reinforced plastic, a composite resin containing fiber-reinforced plastic, or metal, and in this case, it can perform a heat dissipation function to dissipate heat generated when driving the second vibration device 400. The fiber-reinforced plastic may be one of carbon fiber reinforced plastic (CFRP), glass fiber reinforced plastic (GFRP), graphite fiber reinforced plastic (GFRP), or a combination thereof, but embodiments of the present disclosure are not limited thereto.

[0116] The spool protection member 407 according to embodiments of the present disclosure can be attached to the spool 402 by double-sided tape or adhesive resin. For example, the adhesive resin can be epoxy resin or acrylic resin, but embodiments of the present disclosure are not limited thereto.

[0117] According to another embodiment of this disclosure, the spool protection member 407 can be connected or attached to the support portion 10 by double-sided tape or adhesive resin.

[0118] According to another embodiment of this disclosure, the spool protection member 407 may be omitted. In this case, the spool protection member 407 may be an adhesive member. The adhesive member may connect or attach to the support portion 10 and the spool 402. For example, the adhesive member may be epoxy resin or acrylic resin, but embodiments of this disclosure are not limited thereto.

[0119] According to embodiments of this disclosure, the second vibration device 400 may be disposed on the rear surface of the support portion 10. For example, the support portion 10 may be a vibrating plate connected to the spool 402 and coil 404 of the second vibration device 400. For example, the support portion 10 may be connected to the spool 402 and coil 404 of the second vibration device 400 and may be configured as a honeycomb cone structure. According to another embodiment of this disclosure, the spool 402 and coil 404 of the second vibration device 400 may be connected to a third vibration member 40, and in this case, the support portion 10 may be omitted.

[0120] According to embodiments of this disclosure, the spool of the second vibration device 400 may overlap with the third vibration member 40. For example, the spool of the second vibration device 400 may overlap with the protrusion 41 of the third vibration member 40. The second vibration device 400 may cause the edge (or periphery) of the third vibration member 40 to vibrate.

[0121] According to embodiments of this disclosure, the third vibrating member 40 may include a material with a hardness different from that of the first vibrating member 20 and / or the second vibrating member 30. For example, the third vibrating member 40 may include a material with a lower hardness than the second vibrating member 30. The third vibrating member 40 may be paper, metal, or synthetic resin, but embodiments of this disclosure are not limited thereto. For example, the metal may be Al, Mg, Ti, and their alloys, but embodiments of this disclosure are not limited thereto. For example, the synthetic resin may be polypropylene, but embodiments of this disclosure are not limited thereto.

[0122] According to embodiments of this disclosure, the third vibrating member 40 can output sound based on the vibration of the second vibrating device 400. For example, the third vibrating member 40 can vibrate based on a drive signal of the second vibrating device 400 to output sound. The third vibrating member 40 can output sound from vocal cords with a different pitch than the first vibrating member 20 and / or the second vibrating member 30. For example, the third vibrating member 40 and the first vibrating member 20 and / or the second vibrating member 30 may include different materials, thus enabling the output of sound from vocal cords with different pitches. For example, the third vibrating member 40 can output sound from vocal cords with a different pitch than the first vibrating member 20 and / or the second vibrating member 30. For example, the third vibrating member 40 can output sound from a third-tone vocal cord. For example, the third vibrating member 40 can output sound from a third-tone vocal cord that is different from the sound of the first-tone vocal cord of the first vibrating member 20 and / or the sound of the second-tone vocal cord of the second vibrating member 30. The third-tone vocal cord can be a low-tone vocal cord. For example, the low-tone vocal cord can be 200 Hz or lower, but embodiments of this disclosure are not limited thereto. For example, the third vibrating member 40 may be a woofer, but the terminology is not limited thereto. For example, the second vibrating device 400 may cause the third vibrating member 40, which outputs bass-toned sound, to vibrate, and thus output bass-toned sound.

[0123] According to embodiments of this disclosure, the second vibration device 400 can output sound toward the front surface of the third vibration member 40 by using the third vibration member 40 as a vibrating plate. For example, the second vibration device 400 can generate sound such that the sound travels toward the front surface of the third vibration member 40. The second vibration device 400 can cause the third vibration member 40 to vibrate to output sound. For example, the second vibration device 400 can directly cause the third vibration member 40 to vibrate to output sound. For example, the third vibration member 40 can be a vibrating plate or an active vibration member, but embodiments of this disclosure are not limited thereto. For example, the second vibration device 400 can cause the third vibration member 40 to vibrate to output a sound of a third tone vocal cord that is different from the sound of the first tone vocal cord and the sound of the second tone vocal cord.

[0124] According to embodiments of the present disclosure, the first vibrating member 20 can output the sound of the high-pitched vocal cords, the second vibrating member 30 can output the sound of the mid-pitched vocal cords, and the third vibrating member 40 can output the sound of the low-pitched vocal cords, thereby providing an apparatus for outputting the tone vocal cords from 200 Hz to 120 kHz as full-range tone vocal cords.

[0125] According to embodiments of this disclosure, a vibrating member that vibrates based on the vibration of at least one vibrating device can be configured to output sounds from vocal cords of different pitches, thereby providing a device for outputting sounds from vocal cords of different pitches. In this disclosure, the sound device 1 may be a vibrating device, a vibration generating device, a displacement device, a sound device, or a sound generating device, but the terminology is not limited thereto.

[0126] The sound device 1 according to the embodiments of the present disclosure may further include a first adhesive member 310 and a second adhesive member 320.

[0127] For example, the first adhesive member 310 may be disposed on the first surface of the first vibration device 200. For example, the first adhesive member 310 may be disposed on the second surface of the first vibration device 200 opposite to the first surface.

[0128] For example, the first adhesive member 310 may be disposed between the first vibrating member 20 and the second vibrating member 30 and the first vibrating device 200. The first adhesive member 310 may overlap with one or more of the first vibrating member 20 and the second vibrating member 30. For example, the first adhesive member 310 may overlap with one or more of the first vibrating member 20 and the second vibrating member 30. For example, the first adhesive member 310 may overlap completely with the first vibrating member 20. For example, the first adhesive member 310 may overlap with a portion of the second vibrating member 30. The first vibrating member 20 may be disposed at the center of the first adhesive member 310, while the second vibrating member 30 may be disposed at the edge (or periphery) of the first adhesive member 310. For example, the first vibrating member 20 may be disposed at the center of the first adhesive member 310, while the second vibrating member 30 may be disposed at both edges (or both peripheries) of the first adhesive member 310.

[0129] For example, the second adhesive member 320 may be disposed between the third vibrating member 40 and the first vibrating device 200. For example, the second adhesive member 320 may overlap with a portion of the third vibrating member 40.

[0130] According to embodiments of this disclosure, the modulus (e.g., Young's modulus) of the first adhesive member 310 may differ from the modulus of the second adhesive member 320. For example, the modulus of the first adhesive member 310 may be greater than that of the second adhesive member 320. Therefore, the first adhesive member 310 with a high modulus can transmit the vibration of the first vibration device 200 to the first vibration member 20 and the second vibration member 30 without attenuation. The second adhesive member 320 with a low modulus can isolate and dampen vibrations generated in the third vibration member 40. For example, the modulus of the first adhesive member 310 may be from 4 kPa to 100 kPa at room temperature, but embodiments of this disclosure are not limited thereto. For example, the modulus of the second adhesive member 320 may be from 4 kPa to 100 kPa at room temperature, but embodiments of this disclosure are not limited thereto.

[0131] For example, one or more of the first adhesive member 310 and the second adhesive member 320 may include optically clear adhesive (OCA) and optically clear resin (OCR), but embodiments of this disclosure are not limited thereto. For example, the first adhesive member 310 may include acrylic materials, silicone-based materials, and polyurethane-based materials, but embodiments of this disclosure are not limited thereto. For example, the second adhesive member 320 may include acrylic materials, silicone-based materials, and polyurethane-based materials, but embodiments of this disclosure are not limited thereto.

[0132] According to embodiments of this disclosure, one or more vibrating members that output sound from vocal cords of different pitches can be configured, or one or more separate vibrating members can be configured, and one or more vibrating devices that cause one or more vibrating members to vibrate can be configured, thus realizing a sound device 1 (or vibrating device) with a full range.

[0133] According to another embodiment of the present disclosure, the sound device 3 may include adhesive members with different moduli, thereby providing a sound device or vibration device with enhanced sound characteristics and / or sound pressure level characteristics.

[0134] For example, because a separate woofer is not required to achieve the bass-heavy sound of the diaphragm-type vibrating device, the design freedom of the sound device or vibrating device can be enhanced. For example, in the device according to an embodiment of the present disclosure, at least one vibrating member for outputting the sound of the full-range tone vocal cords can be configured, thereby providing a thin and miniaturized device including the sound device or vibrating device. For example, at least one vibrating member for outputting the sound of the full-range tone vocal cords can be configured using either a sound device or a vibrating device, thereby providing a thin and miniaturized device including the sound device or vibrating device.

[0135] Figure 3 A vibration device according to an embodiment of the present disclosure is illustrated. Figures 4A to 4F The vibration section of a vibration device according to an embodiment of the present disclosure is illustrated.

[0136] The first vibration device 200 according to the embodiments of this disclosure may be referred to as a flexible vibration structure, flexible vibrator, flexible vibration generating device, flexible vibration generator, flexible sound generator, flexible sound device, flexible sound generating device, flexible sound generator, flexible actuator, flexible loudspeaker, flexible piezoelectric loudspeaker, membrane actuator, membrane piezoelectric composite actuator, membrane loudspeaker, membrane piezoelectric loudspeaker or membrane piezoelectric composite loudspeaker, but the terminology is not limited thereto.

[0137] Reference Figure 3 Vibration equipment 130 (e.g., Figure 2 The first vibration device 200 shown may include a vibration part 130a, a first electrode part 130b, and a second electrode part 130c.

[0138] The vibrating portion 130a according to embodiments of the present disclosure may include a piezoelectric material. For example, the vibrating portion 130a may include one or more of a piezoelectric inorganic material and a piezoelectric organic material.

[0139] For example, the vibrating portion 130a may include a piezoelectric material (or an electroactive material) exhibiting a piezoelectric effect. For instance, a piezoelectric material may have the following characteristics: when pressure or distortion is applied to its crystal structure by an external force, a potential difference arises due to the change in the relative positions of positive (+) ions and negative (-) ions, and vibration is generated by an electric field based on the voltage applied to it. The vibrating portion 130a may be referred to by terms such as vibrating layer, piezoelectric layer, piezoelectric material layer, electroactive layer, vibrating portion, piezoelectric material portion, electroactive portion, piezoelectric structure, piezoelectric composite layer, piezoelectric composite, or piezoelectric ceramic composite, but the terminology is not limited thereto. The vibrating portion 130a may include a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material, and may be transparent, semi-transparent, or opaque.

[0140] The first vibration device 200 or vibration portion 130a according to embodiments of this disclosure may include a ceramic-based material for achieving relatively high vibrations, or may include a piezoelectric ceramic having a perovskite-based crystal structure. The perovskite crystal structure may have both piezoelectric and inverse piezoelectric effects, and may be an oriented plate-like structure. The perovskite crystal structure may be represented by the chemical formula "ABO3". In the chemical formula, "A" may include a divalent metal element, and "B" may include a tetravalent metal element. For example, in the chemical formula "ABO3", "A" and "B" may be cations, and "O" may be an anion. For example, the first portion 31a may include one or more of lead(II) titanate (PbTiO3), lead zirconate (PbZrO3), lead zirconate titanate (PbZrTiO3), barium titanate (BaTiO3), and strontium titanate (SrTiO3), but embodiments of this disclosure are not limited thereto.

[0141] According to embodiments of this disclosure, the first vibration device 200 or the vibration portion 130a may include a lead zirconate titanate (PZT)-based material containing lead (Pb), zirconium (Zr), and titanium (Ti), or may include a nickel niobium zirconate (PZNN)-based material containing lead (Pb), zinc (Zn), nickel (Ni), and niobium (Nb), but is not limited thereto. In another embodiment, the first vibration device 200 or the vibration portion 130a may include at least one of CaTiO3, BaTiO3, and SrTiO3 that does not contain Pb, but is not limited thereto.

[0142] The first electrode portion 130b may be disposed on the first surface (or upper surface) of the vibrating portion 130a and electrically connected to the first surface of the vibrating portion 130a. The second electrode portion 130c may be disposed on a surface of the vibrating portion 130a that is different from the first surface. For example, the second electrode portion 130c may be disposed on the second surface (or lower surface) of the vibrating portion 130a and electrically connected to the second surface of the vibrating portion 130a. For example, the vibrating portion 130a may be polarized (or depolarized) in a certain temperature atmosphere or in a temperature atmosphere that changes from high temperature to room temperature by applying a certain voltage to the first electrode portion 130b and the second electrode portion 130c, but the embodiments of this disclosure are not limited thereto.

[0143] For example, the first electrode portion 130b may be in the form of a single electrode, wherein the first electrode portion 130b is disposed on the entire first surface of the vibrating portion 130a. The first electrode portion 130b according to embodiments of the present disclosure may include a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the transparent or semi-transparent conductive material may include indium tin oxide (ITO) or indium zinc oxide (IZO), but is not limited thereto. The opaque conductive material may include aluminum (Al), copper (Cu), gold (Au), molybdenum (Mo), magnesium (Mg), or alloys thereof, but embodiments of the present disclosure are not limited thereto.

[0144] The second electrode portion 130c may be disposed on a second surface (or rear surface or back side surface) of the vibrating portion 130a that is opposite to or different from the first surface, and may be electrically connected to the second surface of the vibrating portion 130a. For example, the second electrode portion 130c may be in the form of a single electrode, wherein the second electrode portion 130c is disposed on the entire second surface of the vibrating portion 130a. According to embodiments of the present disclosure, the second electrode portion 130c may include a transparent conductive material, a semi-transparent conductive material, or an opaque conductive material. For example, the second electrode portion 130c may include the same material as the first electrode portion 130b, but is not limited thereto. In another embodiment of the present disclosure, the second electrode portion 130c may include a material different from the material of the first electrode portion 130b.

[0145] The first vibration device 200 according to an embodiment of the present disclosure may further include a first cover member 130d and a second cover member 130e.

[0146] The first cover member 130d may be disposed on the first surface of the vibrating portion 130a. For example, the first cover member 130d may be disposed in the first electrode portion 130b. For example, the first cover member 130d may be disposed on the first electrode portion 130b. For example, the first cover member 130d may cover the first electrode portion 130b disposed on the first surface of the vibrating portion 130a, thereby protecting the first surface of the vibrating portion 130a or the first electrode portion 130b.

[0147] The second cover member 130e may be disposed on the second surface of the vibrating portion 130a. For example, the second cover member 130e may be disposed in the second electrode portion 130c. For example, the second cover member 130e may be disposed below the second electrode portion 130c. For example, the second cover member 130e may cover the second electrode portion 130c disposed on the second surface of the vibrating portion 130a, thereby protecting the second surface of the vibrating portion 130a or the second electrode portion 130c.

[0148] Each of the first cover member 130d and the second cover member 130e according to embodiments of the present disclosure may include one or more materials selected from plastic, fiber, and wood, but is not limited thereto. For example, each of the first cover member 130d and the second cover member 130e may include the same material or different materials. For example, each of the first cover member 130d and the second cover member 130e may be a polyimide film or a polyethylene terephthalate film, but embodiments of the present disclosure are not limited thereto.

[0149] The vibration device 130 according to embodiments of the present disclosure may further include a first adhesive layer 130f and a second adhesive layer 130g. For example, the first adhesive layer 130f may be disposed between the first cover member 130d and the first electrode portion 130b. For example, the second adhesive layer 130g may be disposed between the second cover member 130e and the second electrode portion 130c.

[0150] According to embodiments of the present disclosure, the first cover member 130d can be located within the first electrode portion 130b. For example, the first cover member 130d can be disposed on the first surface of the vibrating portion 130a using a first adhesive layer 130f. For example, the first cover member 130d can be connected or coupled to the first electrode portion 130b using the first adhesive layer 130f. For example, the first cover member 130d can be disposed on the first surface of the vibrating portion 130a using the first adhesive layer 130f via a film lamination process. Therefore, the vibrating portion 130a can be integrated (or disposed) within the first cover member 130d.

[0151] According to embodiments of the present disclosure, the second cover member 130e can be located within the second electrode portion 130c. For example, the second cover member 130e can be disposed on the second surface of the vibrating portion 130a using a second adhesive layer 130g. For example, the second cover member 130e can be connected or coupled to the second electrode portion 130c using the second adhesive layer 130g. For example, the second cover member 130e can be disposed on the second surface of the vibrating portion 130a using the second adhesive layer 130g via a film lamination process. Therefore, the vibrating portion 130a can be integrated (or disposed) within the second cover member 130e.

[0152] For example, the first adhesive layer 130f and the second adhesive layer 130g can be completely surrounded by the vibrating portion 130a. For example, the first adhesive layer 130f and the second adhesive layer 130g can be disposed between the first cover member 130d and the second cover member 130e to surround the vibrating portion 130a, the first electrode portion 130b, and the second electrode portion 130c. For example, the first adhesive layer 130f and the second adhesive layer 130g can be disposed between the first cover member 130d and the second cover member 130e to completely surround the vibrating portion 130a, the first electrode portion 130b, and the second electrode portion 130c. For example, the vibrating portion 130a, the first electrode portion 130b, and the second electrode portion 130c can be buried or embedded between the first adhesive layer 130f and the second adhesive layer 130g. For ease of description, the first adhesive layer 130f and the second adhesive layer 130g are illustrated, but the description is not limited to these examples, and they can be provided as a single adhesive layer.

[0153] Each of the first adhesive layer 130f and the second adhesive layer 130g according to embodiments of the present disclosure may include an electrically insulating material having adhesive properties and being capable of compression and decompression. For example, each of the first adhesive layer 130f and the second adhesive layer 130g may include epoxy resin, acrylic resin, silicone resin, or polyurethane resin, but embodiments of the present disclosure are not limited thereto.

[0154] The first vibration device 200 according to an embodiment of the present disclosure may also include a signal cable.

[0155] The signal cable can be electrically connected to a pad portion disposed in the first vibration device 200, and can provide the first vibration device 200 with a vibration drive signal (or sound signal) provided from the sound processing circuit. According to embodiments, the signal cable may include terminals, and the terminals can be electrically connected to pad electrodes of the pad portion. For example, the signal cable can be configured as a flexible cable, a flexible printed circuit cable, a flexible flat cable, a single-sided flexible printed circuit, a single-sided flexible printed circuit board (PCB), a flexible multilayer printed circuit, or a flexible multilayer PCB, but is not limited thereto. For example, the signal cable can be configured to be transparent, semi-transparent, or opaque.

[0156] The sound processing circuit can generate an AC vibration drive signal, including a first vibration drive signal and a second vibration drive signal, based on sound data. The first vibration drive signal can be one of a positive (+) vibration drive signal and a negative (-) vibration drive signal, and the second vibration drive signal can also be one of a positive (+) vibration drive signal and a negative (-) vibration drive signal. For example, the first vibration drive signal can be provided to the first electrode portion 130b of the first vibration device 200 through the terminals of the signal cable, the pad electrodes of the pad portion, and the first power line. The second vibration drive signal can be provided to the second electrode portion 130c of the first vibration device 200 through the terminals of the signal cable, the pad electrodes of the pad portion, and the second power line.

[0157] According to embodiments of the present disclosure, the vibration part 130a can be integrally formed by the first cover member 130d and the second cover member 130e, thereby providing a vibration device 130 with a simplified structure and thin thickness.

[0158] Reference Figures 4A to 4F According to another embodiment of the present disclosure, the vibration portion 130a of the first vibration device 200 may include a first portion 31a and a second portion 31b. The above-mentioned references can be configured equivalently. Figure 3 The first electrode portion, the second electrode portion, the first cover member, the second cover member, the first adhesive layer, and the second adhesive layer are described.

[0159] The vibrating portion 130a according to embodiments of the present disclosure may include a plurality of first portions 31a and a plurality of second portions 31b. The vibrating portion 130a may include a plurality of first portions 31a and a plurality of second portions 31b located between the plurality of first portions 31a. Each of the plurality of first portions 31a may include one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0160] For example, the first portion 31a may include an inorganic material, while the second portion 31b may include an organic material. For example, the first portion 31a may be a piezoelectric material, while the second portion 31b may have ductile or flexible properties. For example, the inorganic material of the first portion 31a may have piezoelectric properties, while the organic material of the second portion 31b may have ductile or flexible properties. For example, a plurality of first portions 31a and a plurality of second portions 31b may be arranged alternately and repeatedly in the second direction Y. Each of the plurality of first portions 31a may be disposed between two adjacent second portions 31b of the plurality of second portions 31b.

[0161] Reference Figure 4AEach of the plurality of first portions 31a may have a first width W1 parallel to the second direction Y and a length parallel to the first direction X. Each of the plurality of second portions 31b may be configured to be parallel to the second direction Y. For example, each of the plurality of second portions 31b may have a second width W2 and may have a length parallel to the first direction X. For example, each of the plurality of second portions 31b may have the same dimensions (e.g., width, area, or volume). For example, each of the plurality of second portions 31b may have the same dimensions (e.g., width, area, or volume) within process tolerances (or permissible tolerances) that occur during the manufacturing process. The first width W1 may be the same as or different from the second width W2. For example, the first width W1 may be greater than the second width W2. For example, the first portions 31a and the second portions 31b may include line shapes or strip shapes having the same or different dimensions. Therefore, Figure 4A The vibrating portion 130a shown may have a 2-2 composite structure and therefore may have a resonant frequency of 20 kHz or less, but this disclosure is not limited thereto. For example, the resonant frequency of the vibrating portion 130a may vary based on one or more of the shape, length, and thickness of the vibrating portion.

[0162] For example, part 31a may be a piezoelectric part, a piezoelectric element, an inorganic part, an inorganic material part, a piezoelectric layer, a vibrating layer, a displacement layer, or a displacement element, but the terminology is not limited thereto. For example, part 31b may be an extended part, an elastic part, a flexible part, an organic part, an organic material part, a damping part, a bending part, or a resilient part, but the terminology is not limited thereto.

[0163] Reference Figure 4B According to another embodiment of this disclosure, the vibrating portion 130a may include a plurality of first portions 31a and a plurality of second portions 31b arranged alternately and repeatedly in a first direction X. Each of the plurality of first portions 31a may be disposed between two adjacent second portions 31b in the plurality of second portions 31b. For example, each of the plurality of first portions 31a may have a third width W3 parallel to the first direction X and may have a length parallel to the second direction Y. Each of the plurality of second portions 31b may have a fourth width W4 parallel to the first direction X and may have a length parallel to the second direction Y. The third width W3 may be the same as or different from the fourth width W4. For example, the third width W3 may be greater than the fourth width W4. For example, the first portions 31a and the second portions 31b may include line shapes or strip shapes having the same size or different sizes. Therefore, Figure 4BThe vibrating portion 130a shown may have a 2-2 composite structure and therefore may have a resonant frequency of 20 kHz or less, but this disclosure is not limited thereto. For example, the resonant frequency of the vibrating portion 130a may vary based on one or more of the shape, length, and thickness of the vibrating portion.

[0164] exist Figure 4A and Figure 4B In the vibrating portion 130a shown, a plurality of first portions 31a and a plurality of second portions 31b can be arranged (or arranged) in parallel on the same plane (or the same layer). Each of the plurality of second portions 31b can be configured to fill the gap between two adjacent first portions 31a. Each of the plurality of second portions 31b can be connected to or attached to an adjacent first portion 31a. Therefore, the vibrating portion 130a can extend to a desired size or length based on the lateral connection (or link) between the first portions 31a and the second portions 31b.

[0165] exist Figure 4A and Figure 4B In the vibrating portion (or vibrating layer) 31a shown, the width W2 and the fourth width W4 of each of the plurality of second portions 31b may gradually decrease in the direction from the central portion of the vibrating portion 130a or the first vibrating device 200 to its two edge portions (or ends or two peripheries).

[0166] According to embodiments of this disclosure, when the vibrating portion 130a or the first vibrating device 200 vibrates in the vertical direction Z (or the thickness direction), the second portion 31b with the largest width W2 or W4 among the plurality of second portions 31b can be disposed at the portion with the greatest stress concentration. When the vibrating portion 130a or the first vibrating device 200 vibrates in the vertical direction Z, the second portion 31b with the smallest width W2 or W4 among the plurality of second portions 31b can be disposed at the portion where the relative stress is minimal. For example, the second portion 31b with the largest width W2 or W4 among the plurality of second portions 31b can be disposed at the central portion of the vibrating portion 130a, and the second portion 31b with the smallest width W2 or W4 among the plurality of second portions 31b can be disposed at the two edge portions (or two peripheral portions) of the vibrating portion 130a. Therefore, when the vibrating part 130a or the first vibrating device 200 vibrates in the vertical direction Z, the interference of sound waves or the overlap of resonant frequencies occurring at the part of maximum stress concentration can be reduced or minimized, thereby reducing the sound pressure level dip that occurs in the low-pitched vocal cords. For example, the flatness of the sound characteristics can be the magnitude of the deviation between the highest and lowest sound pressure levels.

[0167] exist Figure 4A and Figure 4BIn the vibrating portion 130a shown, the plurality of first portions 31a may have different dimensions (or widths). For example, the dimension (or width) of each of the plurality of first portions 31a may gradually decrease or increase in the direction from the central portion of the vibrating portion 130a or the first vibrating device 200 to its two edge portions (or both ends or two peripheral portions). In this case, the sound pressure level characteristics of the vibrating portion 130a can be enhanced by various unique vibration frequencies based on the vibration of the plurality of first portions 31a with different dimensions, and the sound reproduction frequency band can be extended.

[0168] Reference Figure 4C According to another embodiment of the present disclosure, the vibrating portion 130a may include a plurality of first portions 31a spaced apart from each other in a first direction X and a second direction Y, and a second portion 31b disposed between the plurality of first portions 31a. The plurality of first portions 31a may be spaced apart from each other in each of the first direction X and the second direction Y. For example, the plurality of first portions 31a may have a hexahedral shape of the same size and may be arranged in a lattice shape. The second portion 31b may be disposed between the plurality of first portions 31a in each of the first direction X and the second direction Y. The second portion 31b may be configured to fill the gap between two adjacent first portions 31a or surround each of the plurality of first portions 31a. Therefore, the second portion 31b may be connected to or attached to adjacent first portions 31a. For example, the width of the second portion 31b disposed between two adjacent first portions 31a in the first direction X may be the same as or different from the width of the first portions 31a, and the width of the second portion 31b disposed between two adjacent first portions 31a in the second direction Y may be the same as or different from the width of the first portions 31a. Therefore, Figure 4C The vibrating portion 130a shown, based on a 1-3 composite structure, can have a resonant frequency of 30 MHz or less. However, this disclosure is not limited thereto, and the resonant frequency of the vibrating portion 130a can vary based on one or more of the shape, length, and thickness of the vibrating portion.

[0169] Reference Figure 4DAccording to another embodiment of this disclosure, the vibrating portion 130a may include a plurality of first portions 31a spaced apart from each other in a first direction X and a second direction Y, and a second portion 31b surrounding each of the plurality of first portions 31a. Each of the plurality of first portions 31a may have a planar structure with a circular shape. For example, each of the plurality of first portions 31a may have a circular plate shape, but is not limited thereto. For example, each of the plurality of first portions 31a may have a point shape including an oval shape, a polygonal shape, or a ring shape. The second portion 31b may be configured to surround each of the plurality of first portions 31a. Therefore, the second portion 31b may be connected to or attached to the side surface of each of the plurality of first portions 31a. The plurality of first portions 31a and the second portion 31b may be arranged (or arranged) in parallel on the same plane (or the same layer). Therefore, Figure 4D The vibrating portion 130a shown can be implemented as a vibration source (or vibrating element) with a circular shape and a 1-3 composite structure, and thus can have a resonant frequency of 30 MHz or less, thereby enhancing the vibration characteristics or sound output characteristics. However, this disclosure is not limited thereto, and the resonant frequency of the vibrating portion 130a can vary based on one or more of the shape, length, and thickness of the vibrating portion.

[0170] Reference Figure 4E According to another embodiment of the present disclosure, the vibration portion 130a may include a plurality of first portions 31a spaced apart from each other in a first direction X and a second direction Y, and a second portion 31b surrounding each of the plurality of first portions 31a. Each of the plurality of first portions 31a may have a triangular planar structure. For example, each of the plurality of first portions 31a may have a triangular plate shape.

[0171] For example, four adjacent first portions 31a of a plurality of first portions 31a can be arranged adjacent to each other to form a quadrilateral shape (or a square shape). The vertex of each of the four adjacent first portions 31a forming the quadrilateral shape can be arranged adjacent to the middle portion (or central portion) of the quadrilateral shape. A second portion 31b can be configured to surround each of the plurality of first portions 31a. Therefore, the second portion 31b can be connected to or attached to the side surface of each of the plurality of first portions 31a. The plurality of first portions 31a and the second portion 31b can be arranged (or arranged) in parallel on the same plane (or the same layer). Therefore, Figure 4EThe vibrating portion 130a shown can be implemented as a vibration source (or vibrating element) with a circular shape and a 1-3 composite structure, and therefore can have a resonant frequency of 30 MHz or less, thereby enhancing the vibration characteristics or sound output characteristics. However, this disclosure is not limited thereto, and the resonant frequency of the vibrating portion 130a can vary based on one or more of the shape, length, and thickness of the vibrating portion.

[0172] According to another embodiment of this disclosure, such as Figure 4F As shown, six adjacent first portions 31a of a plurality of first portions 31a can be arranged adjacent to each other to form a hexagonal shape (or a regular hexagon). The vertex of each of the six adjacent first portions 31a forming the hexagonal shape can be arranged adjacent to the middle portion (or central portion) of the hexagonal shape. A second portion 31b can be configured to surround each of the plurality of first portions 31a. Therefore, the second portion 31b can be connected to or attached to the side surface of each of the plurality of first portions 31a. The plurality of first portions 31a and the second portion 31b can be arranged (or arranged) in parallel on the same plane (or the same layer). Therefore, Figure 4F The vibrating portion 130a shown can be implemented as a vibration source (or vibrating element) with a circular shape and a 1-3 composite structure, and therefore can have a resonant frequency of 30 MHz or less, thereby enhancing the vibration characteristics or sound output characteristics. However, this disclosure is not limited thereto, and the resonant frequency of the vibrating portion 130a can vary based on one or more of the shape, length, and thickness of the vibrating portion.

[0173] Reference Figure 4E and Figure 4F Two N adjacent first parts 31a of a plurality of triangular shapes (where N is a natural number of 2 or greater) can be arranged adjacent to each other to form a 2N-angle shape.

[0174] exist Figures 4A to 4F Each of the plurality of first portions 31a according to embodiments of the present disclosure may include an inorganic material portion. The inorganic material portion may include a piezoelectric material or an electroactive material. A piezoelectric or electroactive material may have the property that, when pressure or distortion is applied to a crystal structure by an external force, a potential difference arises due to dielectric polarization caused by changes in the relative positions of positive (+) ions and negative (-) ions, and vibrations are generated by an electric field based on the voltage applied thereto. (Refer to...) Figure 3 The first surface of each of the plurality of first portions 31a can be electrically connected to the first electrode portion 130b, and the second surface of each of the plurality of first portions 31a can be electrically connected to the second electrode portion 130c.

[0175] Figure 5It is along Figure 1 Another cross-sectional view taken from line II′. Figure 5 In, with Figure 1 and Figure 2 The same elements are referred to by similar reference numerals, and repeated descriptions will be omitted or briefly given below.

[0176] Reference Figure 5 According to another embodiment of the present disclosure, the sound device 2 may include a vibration device and a vibration component.

[0177] According to another embodiment of this disclosure, the vibration device may include a first vibration device 200 and a second vibration device 400.

[0178] According to another embodiment of this disclosure, the vibration component may include a first vibration component 20, a second vibration component 30, and a third vibration component 40.

[0179] For example, the second vibrating member 30 may be located around the first vibrating member 20. For example, the second vibrating member 30 may be spaced apart from the first vibrating member 20. For example, the second vibrating member 30 may be spaced apart from the third vibrating member 40, with a gap space inserted therebetween.

[0180] For example, the third vibrating member 40 may be located around the second vibrating member 30. The third vibrating member 40 may be located around the first vibrating member 20 and the second vibrating member 30.

[0181] The third vibrating member 40 may surround the first vibrating member 20 and the second vibrating member 30. The third vibrating member 40 may include a protruding portion 41 and a recessed portion 42. For example, the first vibrating member 20 and the second vibrating member 30 may be disposed in the recessed portion 42 of the third vibrating member 40.

[0182] The second vibrating member 30 may overlap with the first vibrating device 200. For example, one side (or one end or part) of the second vibrating member 30 may match one side (or one end or part) of the first vibrating device 200. Therefore, a gap space GS can be provided between the second vibrating member 30 and the third vibrating member 40. The gap space GS can reduce or minimize the vibration loss of the first vibrating device 200, thereby increasing the sound pressure level characteristics and / or sound characteristics of the sound generated by the vibration of the second vibrating member 30.

[0183] According to another embodiment of this disclosure, the modulus of the first adhesive member 310 and the modulus of the second adhesive member 320 may be configured differently and in accordance with the above-mentioned references. Figure 1 and Figure 2The described implementation method is applicable. For example, the modulus of the first adhesive member 310 may be greater than that of the second adhesive member 320. Therefore, the vibrations of the first vibrating device 200 and / or the second vibrating device 400 can be better transmitted to one or more of the first vibrating member 20 to the third vibrating member 40, thereby providing a device with more enhanced sound characteristics and / or sound pressure level characteristics.

[0184] Figure 6 It is along Figure 1 Another cross-sectional view taken from line II′. Figure 6 In, with Figure 1 and Figure 2 The same elements are referred to by similar reference numerals, and their repeated descriptions will be omitted or briefly given below.

[0185] Reference Figure 6 According to another embodiment of the present disclosure, the sound device 3 may include a vibration device and a vibration component.

[0186] According to another embodiment of this disclosure, the vibration device may include a first vibration device 200 and a second vibration device 400.

[0187] According to another embodiment of this disclosure, the vibration component may include a first vibration component 20, a second vibration component 30, and a third vibration component 40.

[0188] For example, the second vibrating member 30 may be located around the first vibrating member 20. For example, the second vibrating member 30 may be spaced apart from the first vibrating member 20. For example, the second vibrating member 30 may be spaced apart from the third vibrating member 40, with a gap space inserted therebetween.

[0189] For example, the third vibrating member 40 may be located around the second vibrating member 30. The third vibrating member 40 may be located around the first vibrating member 20 and the second vibrating member 30. The third vibrating member 40 may surround the first vibrating member 20 and the second vibrating member 30. The third vibrating member 40 may include a protruding portion 41 and a recessed portion 42. For example, the first vibrating member 20 and the second vibrating member 30 may be disposed within the recessed portion 42 of the third vibrating member 40.

[0190] According to another embodiment of the present disclosure, the sound device 3 may further include a first adhesive member 310 and a second adhesive member 320.

[0191] For example, the first adhesive member 310 may be disposed on the first surface of the first vibration device 200. For example, the first adhesive member 310 may be disposed on the second surface of the first vibration device 200 opposite to the first surface.

[0192] For example, the first adhesive member 310 may be disposed between the first vibrating member 20 and the second vibrating member 30 and the first vibrating device 200. For example, the second adhesive member 320 may be disposed between the third vibrating member 40 and the first vibrating device 200.

[0193] For example, one or more of the first adhesive member 310 and the second adhesive member 320 may include optically clear adhesive (OCA) and optically clear resin (OCR), but embodiments of this disclosure are not limited thereto. For example, the first adhesive member 310 may include acrylic materials, silicone-based materials, and polyurethane-based materials, but embodiments of this disclosure are not limited thereto. For example, the second adhesive member 320 may include acrylic materials, silicone-based materials, and polyurethane-based materials, but embodiments of this disclosure are not limited thereto.

[0194] According to another embodiment of this disclosure, the thickness of the first adhesive member 310 can be adjusted to be different from the thickness of the second adhesive member 320. For example, the thickness of the second adhesive member 320 can be adjusted to be thicker than the thickness of the first adhesive member 310. The thickness of the second adhesive member 320 can be 20 mm. μ m to 100 μ However, the embodiments disclosed herein are not limited to this. The thickness of the first adhesive member 310 can be 10 m. μ m to 30 μ However, the embodiments of this disclosure are not limited thereto. Therefore, the thin first adhesive member 310 can transmit the vibrations of the first vibrating device 200 to the first vibrating member 20 and the second vibrating member 30 without attenuation. The thick second adhesive member 320 can isolate and dampen vibrations generated in the third vibrating member 40. Therefore, the sound device 3 according to another embodiment of this disclosure can provide a sound device with enhanced sound characteristics and / or sound pressure level characteristics.

[0195] According to another embodiment of this disclosure, the above-mentioned combination Figure 6 The implementation method is as follows: Figure 1 and Figure 2 The modulus of the first adhesive member 310 can be adjusted to be different from that of the second adhesive member 320 and can be applied. For example, the modulus of the first adhesive member 310 can be greater than that of the second adhesive member 320. Therefore, the vibrations of the first vibrating device 200 and / or the second vibrating device 400 can be better transmitted to one or more of the first vibrating members 20 to the third vibrating members 40, thereby providing a device with more enhanced sound characteristics and / or sound pressure level characteristics.

[0196] According to another embodiment of this disclosure, the combination thereof can be applied. Figure 6 The implementation method is as follows: Figure 5The described sound device has one side (or one end or part) of the second vibrating member 30 matched with one side (or one end or part) of the first vibrating device 200. Therefore, a gap space GS can be provided between the second vibrating member 30 and the third vibrating member 40. The gap space GS can reduce or minimize the vibration loss of the first vibrating device 200, thus increasing the sound pressure level characteristics and / or sound characteristics of the sound generated based on the vibration of the second vibrating member 30.

[0197] Figure 7 An example of a sound device according to another embodiment of the present disclosure is shown. Figure 8 It is along Figure 7 The cross-sectional view taken from line II-II′. Figure 9 It is along Figure 7 Another cross-sectional view taken from line II-II′. Figures 7 to 9 In, with Figure 1 and Figure 2 The same elements are referred to by similar reference numerals, and their repeated descriptions will be omitted or briefly given below.

[0198] Reference Figures 7 to 9 According to another embodiment of the present disclosure, the sound device 4 may include a vibration device and a vibration component.

[0199] According to another embodiment of this disclosure, the vibration device may include a first vibration device 200 and a second vibration device 400.

[0200] According to another embodiment of this disclosure, the vibration component may include a first vibration component 20, a second vibration component 30, and a third vibration component 40.

[0201] For example, the second vibrating member 30 may be located around the first vibrating member 20. For example, the second vibrating member 30 may be spaced apart from the first vibrating member 20. For example, the second vibrating member 30 may be spaced apart from the third vibrating member 40, with a gap space inserted therebetween.

[0202] For example, the third vibrating member 40 may be located around the second vibrating member 30. The third vibrating member 40 may be located around the first vibrating member 20 and the second vibrating member 30. The third vibrating member 40 may surround the first vibrating member 20 and the second vibrating member 30. The third vibrating member 40 may include a protruding portion 41 and a recessed portion 42. The recessed portion may contact the first vibrating device 200. For example, the first vibrating member 20 and the second vibrating member 30 may be disposed within the recessed portion 42 of the third vibrating member 40.

[0203] The sound device 4 according to another embodiment of this disclosure may further include a fourth vibrating member 50. The fourth vibrating member 50 may be located between the second vibrating member 30 and the third vibrating member 40. For example, the fourth vibrating member 50 may fill the area between the second vibrating member 30 and the third vibrating member 40. The fourth vibrating member 50 may include the same material as one or more of the second vibrating member 30 and the third vibrating member 40. For example, the fourth vibrating member 50 may include one or more of paper, synthetic resin, and metal.

[0204] For example, the second vibrating member 30 may be configured to protrude toward the third vibrating member 40. Alternatively, the second vibrating member 30 may be configured to protrude toward the outer portion of the first vibrating device 200. Therefore, a gap space GS may be formed between the first vibrating device 200 and the third vibrating member 40. For example, the gap space GS may be disposed between the recessed portion 42 of the third vibrating member 40 and / or the second vibrating member 30. A fourth vibrating member 50 may fill the gap space GS. For example, the fourth vibrating member 50 may fill a portion of the gap space GS. The fourth vibrating member 50 may be disposed in the space between the second vibrating member 30 and the third vibrating member 40.

[0205] The fourth vibrating member 50 can be implemented in the form of a horn, wherein the second vibrating member 30 protrudes outward from the first vibrating device 200 and is surrounded by the third vibrating member 40. Airflow can occur in the horn-shaped space, and the airflow can act as a waveguide, making the sound generated in the third vibrating member 40 more complete. The fourth vibrating member 50 can output a low-pitched sound. Therefore, because of the configuration of the fourth vibrating member 50, the low-pitched sound of the third vibrating member 40 can be increased, and the low-pitched sound of the first vibrating device 200 can be supplemented. For example, the fourth vibrating member 50 can be a diaphragm or an active vibrating member, but the embodiments of this disclosure are not limited thereto.

[0206] Reference Figure 9 According to another embodiment of this disclosure, the fourth vibrating member 51 can fill the area between the second vibrating member 30 and the third vibrating member 40. The fourth vibrating member 51 can fill the gap space GS. For example, the fourth vibrating member 51 can fill all of the gap space GS. The fourth vibrating member 51 can be implemented in the form of a horn, wherein the second vibrating member 30 protrudes to the outer portion of the first vibrating device 200 and is surrounded by the third vibrating member 40. Airflow can occur in the horn-shaped space, and the airflow can act as a waveguide, making the sound generated in the third vibrating member 40 more complete. Figure 9 Can be compared Figure 8A fuller sound output is achieved. Therefore, because the fourth vibrating member 51 is configured, the sound of the low-pitched vocal cords of the third vibrating member 40 can be increased, and the sound of the low-pitched vocal cords of the first vibrating device 200 can be supplemented.

[0207] According to another embodiment of this disclosure, the above-mentioned combination Figures 7 to 9 The implementation method is as follows: Figure 1 The modulus of the first adhesive member 310 can be adjusted to be different from that of the second adhesive member 320. For example, the modulus of the first adhesive member 310 can be greater than that of the second adhesive member 320. Therefore, the vibrations of the first vibrating device 200 and / or the second vibrating device 400 can be better transmitted to one or more of the first vibrating member 20 to the fourth vibrating member 50, thereby providing a device with more enhanced sound characteristics and / or sound pressure level characteristics.

[0208] According to another embodiment of this disclosure, the combination thereof can be applied. Figure 6 The implementation method is as follows: Figure 5 The described sound device has one side (or end or portion) of the second vibrating member 30 matched with one side (or end or portion) of the first vibrating device 200. Therefore, a gap space GS can be provided between the second vibrating member 30 and the third vibrating member 40. The gap space GS can reduce or minimize the vibration loss of the first vibrating device 200, thereby increasing the sound pressure level characteristics and / or sound characteristics of the sound generated based on the vibration of the second vibrating member 30.

[0209] According to another embodiment of this disclosure, the above-mentioned combination Figures 7 to 9 The implementation method is as follows: Figure 6 The thickness of the first adhesive member 310 can be adjusted to be different from the thickness of the second adhesive member 320. For example, the thickness of the second adhesive member 320 can be greater than the thickness of the first adhesive member 310. Therefore, the vibrations of the first vibrating device 200 and / or the second vibrating device 400 can be better transmitted to one or more of the first vibrating member 20 to the fourth vibrating member 50, thereby providing a device with more enhanced sound characteristics and / or sound pressure level characteristics.

[0210] According to another embodiment of this disclosure, the above combination can be applied. Figures 7 to 9 The implementation method is as follows: Figure 1 and Figure 6 The modulus and / or thickness of each of the first adhesive member 310 and the second adhesive member 320 are described. Therefore, the vibrations of the first vibrating device 200 and / or the second vibrating device 400 can be better transmitted to one or more of the first vibrating member 20 to the fourth vibrating member 50, thereby providing a device with more enhanced acoustic characteristics and / or sound pressure level characteristics.

[0211] Figure 10 An apparatus according to an embodiment of the present disclosure is illustrated. Figure 11 It is along Figure 10 The cross-sectional view taken from line III-III′.

[0212] Reference Figure 10 and Figure 11 The device according to embodiments of the present disclosure may include a passive vibration member 500 and a vibration generating device 600.

[0213] For example, the passive vibrating member 500 can output sound based on the vibration of the vibration generating device 600. The vibration generating device 600 can output sound by using the passive vibrating member 500 as a vibrating plate. For example, the vibration generating device 600 can output sound towards the front surface of the passive vibrating member 500 by using the passive vibrating member 500 as a vibrating plate. For example, the vibration generating device 600 can generate sound such that the sound travels towards the front surface of the passive vibrating member 500. The vibration generating device 600 can cause the passive vibrating member 500 to vibrate to output sound. For example, the vibration generating device 600 can directly cause the passive vibrating member 500 to vibrate to output sound. The vibration generating device 600 may include the above-mentioned references. Figures 1 to 9 One or more of the sound devices 1 to 5 described above. For example, vibration generating device 600 can be configured as described above. Figures 1 to 9 The description describes a connection structure for two or more of the sound devices 1 to 5. For example, the connection structure may be a connection structure between sound device 1 and sound device 3; a connection structure between sound device 1, sound device 3 and sound device 4; a connection structure between sound device 1, sound device 3 and sound device 5; a connection structure between sound device 2 and sound device 3; a connection structure between sound device 2 and sound device 4; and a connection structure between sound device 2 and sound device 5. The vibration generating device 600 may be a sound device, a vibrator, or a vibration generator, but the terminology is not limited thereto. For example, the passive vibration member 500 may be a vibrating object, a display panel, a diaphragm, or a front member, but the embodiments of this disclosure are not limited thereto. Hereinafter, an embodiment of the passive vibration member 500 as a display panel will be described.

[0214] The vibration generating device 600 according to this disclosure can be applied to display devices. For example, examples of display devices may include display devices comprising a display panel and a driver for driving the display panel, such as an organic light-emitting display (OLED) module or a liquid crystal module (LCM). Furthermore, examples of display devices may include assemblies (or equipment assemblies) or electronic devices as complete products (or final products) including LCMs or OLED modules, such as notebook computers, TVs, computer monitors, equipment including automotive equipment or other types of equipment for vehicles, or mobile electronic devices such as smartphones or tablets.

[0215] Therefore, in this disclosure, examples of display devices may include the display device itself, such as an LCM or OLED module, and a complete set of devices as an end consumer device or application product including an LCM or OLED module.

[0216] In some implementations, an LCM or OLED module including a display panel and a driver may be referred to as a display device, while an electronic device that is the final product including an LCM or OLED module may be referred to as an assembly. For example, a display device may include a display panel such as an LCD or OLED, and a source printed circuit board (PCB) serving as a controller for driving the display panel. An assembly may also include an assembly PCB, which is an assembly controller electrically connected to the source PCB to control the assembly as a whole.

[0217] The display panel used in embodiments of this disclosure can be any type of display panel, such as a liquid crystal display panel, an organic light-emitting diode (OLED) display panel, and an electroluminescent display panel, but is not limited to a specific display panel that outputs sound by vibrating a sound generating device according to embodiments of this disclosure. Furthermore, there are no limitations on the shape or size of the display panel used in the display device according to embodiments of this disclosure.

[0218] The display panel may also include a backing such as a metal plate attached to the display panel. However, this embodiment is not limited to a metal plate, and the display panel may include another structure (e.g., another structure including another material).

[0219] The display panel can display images (e.g., electronic images, digital images, still images, or video images). The display panel can be a curved display panel, or any type of display panel such as a liquid crystal display panel, an organic light-emitting display panel, a quantum dot light-emitting display panel, a micro-light-emitting diode display panel, and an electrophoretic display panel. The display panel can be a flexible display panel. For example, the display panel can be a flexible light-emitting display panel, a flexible electrophoretic display panel, a flexible electrowetting display panel, a flexible micro-light-emitting diode display panel, or a flexible quantum dot light-emitting display panel.

[0220] The display panel according to embodiments of the present disclosure may include a display area for displaying images based on the driving of a plurality of pixels. The display panel may include a display area and a non-display area surrounding the display area, but embodiments of the present disclosure are not limited thereto.

[0221] When the display panel is an organic light-emitting display panel, it may include multiple gate lines, multiple data lines, and multiple pixels respectively disposed in multiple pixel regions defined by the intersections of the gate lines and data lines. Furthermore, the display panel may include: an array substrate including thin-film transistors (TFTs) as elements for selectively applying voltage to each pixel; an organic light-emitting device layer located on the array substrate; and an encapsulation substrate disposed on the array substrate to cover the organic light-emitting device layer. The encapsulation substrate can protect the TFTs and the organic light-emitting device layer from external impacts and can prevent moisture or oxygen from penetrating into the organic light-emitting device layer. Additionally, the layer disposed on the array substrate may include an inorganic light-emitting layer (e.g., a nanoscale material layer, quantum dots, etc.). As another example, the layer disposed on the array substrate may include a micro-light-emitting diode.

[0222] The display panel according to embodiments of the present disclosure may include an anode electrode, a cathode electrode, and a light-emitting device, and can display images in types such as top-emitting, bottom-emitting, or double-sided-emitting types based on a pixel array layer comprising multiple pixels. In the top-emitting type, visible light emitted from the pixel array layer can illuminate the base substrate in the forward direction to allow image display, while in the bottom-emitting type, visible light emitted from the pixel array layer can illuminate the base substrate in the backward direction to allow image display.

[0223] A display panel according to embodiments of the present disclosure may include a pixel array portion disposed on a substrate. The pixel array portion may include a plurality of pixels that display an image based on signals provided through each signal line. The signal lines may include gating lines, data lines, and pixel drive power lines, but embodiments of the present disclosure are not limited thereto.

[0224] Each of the plurality of pixels may include a pixel circuit layer comprising a driving TFT disposed in a pixel region configured by a plurality of gate lines and / or a plurality of data lines, an anode electrode electrically connected to the driving TFT, a light-emitting device layer formed on the anode electrode, and a cathode electrode electrically connected to the light-emitting device layer.

[0225] The driving TFT can be disposed in the transistor region of each pixel region disposed in the substrate. The driving TFT may include a gate electrode, a gate insulating layer, a semiconductor layer, a source electrode, and a drain electrode. The semiconductor layer of the driving TFT may include silicon such as amorphous silicon (a-Si), polycrystalline silicon (poly-Si), or low-temperature polycrystalline silicon, or may include oxides such as indium gallium zinc oxide (IGZO), but the embodiments disclosed herein are not limited thereto.

[0226] The anode electrode (or pixel electrode) can be set in the opening area set in each pixel area and can be electrically connected to the driving TFT.

[0227] The light-emitting device according to embodiments of the present disclosure may include an organic light-emitting device layer disposed on an anode electrode. The organic light-emitting device layer may be configured such that pixels emit light of the same color (e.g., white light) or emit light of different colors (e.g., red, green, and blue light). A cathode electrode (or common electrode) may be connected to the organic light-emitting device layer disposed in each pixel region. For example, the organic light-emitting device layer may have a stacked structure comprising two or more structures or a single structure comprising the same color. In another embodiment of the present disclosure, the organic light-emitting device layer may have a stacked structure comprising two or more structures for each pixel, the two or more structures comprising one or more different colors. The two or more structures comprising one or more different colors may be configured as one or more of blue, red, yellow-green, and green, or combinations thereof, but embodiments of the present disclosure are not limited thereto. Examples of combinations may include blue and red, red and yellow-green, red and green, and red / yellow-green / green, but embodiments of the present disclosure are not limited thereto. Furthermore, this combination can be applied regardless of its stacking order. A stacked structure comprising two or more structures having the same color or one or more different colors may further include a charge generation layer located between the two or more structures. The charge generation layer may have a PN junction structure and may include an N-type charge generation layer and a P-type charge generation layer.

[0228] According to another embodiment of this disclosure, the light-emitting device layer may include a miniature light-emitting diode (LED) device electrically connected to each of the anode electrode and the cathode electrode. The miniature LED device may be an integrated circuit (IC) type or a chip type LED. The miniature LED device may include a first terminal electrically connected to the anode electrode and a second terminal electrically connected to the cathode electrode. The cathode electrode may be connected to the second terminal of the miniature LED device disposed in each pixel region.

[0229] An encapsulation portion can be formed on a substrate to surround the pixel array portion, thus preventing oxygen or moisture from penetrating into the light-emitting device layer of the pixel array portion. The encapsulation portion according to embodiments of the present disclosure can be formed as a multilayer structure in which organic and inorganic material layers are alternately stacked, but embodiments of the present disclosure are not limited thereto. The inorganic material layer prevents oxygen or moisture from penetrating into the light-emitting device layer of the pixel array portion. The organic material layer can be formed to have a thickness relatively greater than that of the inorganic material layer to cover particles that appear during the manufacturing process. For example, the encapsulation portion may include a first inorganic layer, an organic layer located on the first inorganic layer, and a second inorganic layer located on the organic layer. The organic layer may be a particle covering layer, but the terminology is not limited thereto. A touch panel can be disposed on the encapsulation portion, or it can be disposed on the rear surface of the pixel array portion or within the pixel array portion.

[0230] A display panel according to embodiments of the present disclosure may include a first substrate, a second substrate, and a liquid crystal layer. The first substrate may be an upper substrate or a TFT array substrate. For example, the display panel may include: a first substrate including a TFT, the TFT being a switching element for adjusting the light transmittance of each pixel; a second substrate including a color filter and / or a black matrix; and a liquid crystal layer formed between the first substrate and the second substrate. For example, the first substrate may include a pixel array (or display portion or display area) including a plurality of pixels disposed in a pixel area configured by a plurality of gate lines and / or a plurality of data lines. Each of the plurality of pixels may include a TFT connected to the gate lines and / or data lines, a pixel electrode connected to the TFT, and a common electrode formed adjacent to the pixel electrode and provided with a common voltage.

[0231] The first substrate may further include a pad portion disposed on its first edge (or non-display portion or first periphery) and a gating drive circuit disposed on its second edge (or second non-display portion or second periphery).

[0232] The pad portion can provide externally supplied signals to the pixel array portion and / or the gating drive circuitry. For example, the pad portion may include multiple data pads connected to multiple data lines via multiple data link lines and / or multiple gating input pads connected to the gating drive circuitry via gating control signal lines. For example, the size of the first substrate may be larger than the size of the second substrate, but the terminology is not limited thereto.

[0233] The gating drive circuit can be embedded (or integrated) into the second edge (or second periphery) of the first substrate to connect to multiple gating lines. For example, the gating drive circuit can be implemented using a shift register that includes transistors formed using the same process as the TFTs disposed in the pixel region. According to another embodiment of this disclosure, the gating drive circuit may not be embedded in the first substrate and can be configured as an IC-type panel drive circuit.

[0234] The second substrate can be a lower substrate or a color filter array substrate. For example, the second substrate may include a pixel pattern (or pixel-defined pattern) capable of including an opening region overlapping with a pixel region formed in the first substrate and a color filter layer formed in the opening region. The second substrate may have a smaller size than the first substrate, but embodiments of this disclosure are not limited thereto. The second substrate may overlap with a portion of the first substrate other than the first edge (or first periphery). The second substrate may be bonded or attached to a portion of the first substrate other than the first edge (or first periphery) by a sealant, and a liquid crystal layer is located therebetween.

[0235] A liquid crystal layer may be disposed between a first substrate and a second substrate. The liquid crystal layer may include liquid crystal, wherein the orientation of the liquid crystal molecules is changed based on an electric field generated by a common voltage and a data voltage applied to the pixel electrode of each pixel.

[0236] The second polarizing member can be attached to the bottom surface of the second substrate and can polarize the light incident from the backlight and traveling in parallel to the liquid crystal layer. The first polarizing member can be attached to the top surface of the first substrate and can polarize the light passing through the first substrate and exiting to the outside.

[0237] The display panel according to embodiments of the present disclosure can drive the liquid crystal layer using an electric field generated by the data voltage applied to each pixel and a common voltage, thereby displaying an image based on light passing through the liquid crystal layer.

[0238] In a display panel according to another embodiment of the present disclosure, the first substrate may be a color filter array substrate, and the second substrate may be a TFT array substrate. For example, the display panel according to another embodiment of the present disclosure may have a form in which the display panel according to the embodiment of the present disclosure is vertically inverted. In this case, the pad portion of the display panel according to another embodiment of the present disclosure may be covered by a separate mechanism.

[0239] According to another embodiment of the present disclosure, the display panel may include a curved portion that is bent or folded into a shape having a certain radius of curvature or a curved surface.

[0240] The curved portion of the display panel can be implemented at one or more of a parallel edge portion (or peripheral portion) and another edge portion (or peripheral portion) of the display panel. The edge portion implementing the curved portion of the display panel may consist only of non-display areas, or it may include both non-display areas and the edge portion of the display area. A display panel including a curved portion implemented by bending the non-display area IA can have a one-sided bezel bending structure or a double-sided bezel bending structure. Furthermore, a display panel including the edge portion (or peripheral portion) of the display area and the curved portion implemented by bending the non-display area can have a single-sided active bending structure or a double-sided active bending structure.

[0241] The vibration generating device 600 can vibrate the display panel on its rear surface, thus providing sound to the user based on the vibration of the display panel. The vibration generating device 600 can be implemented within the rear surface of the display panel to directly vibrate it.

[0242] In embodiments of this disclosure, the vibration generating device 600 can vibrate based on a vibration drive signal synchronized with the image displayed on the display panel to cause the display panel to vibrate.

[0243] The vibration generating device 600 can cause the display panel or the passive vibration member 500 to vibrate. For example, the vibration generating device 600 can be implemented to directly vibrate the display panel or the passive vibration member 500 on the rear surface of the passive vibration member 500. For example, the vibration generating device 600 can cause the passive vibration member 500 to vibrate at the rear surface of the display panel or the passive vibration member 500, thus providing the user with a full range of sound based on the vibration of the display panel or the passive vibration member 500.

[0244] According to another embodiment of this disclosure, the vibration generating device 600 may not be disposed in the rear surface of the display panel, and may be applied to a non-display panel instead of the display panel. For example, the non-display panel may be one or more of the following: metal, wood, plastic, glass, cloth, fiber, rubber, paper, leather, vehicle interior materials, building interior ceilings, and aircraft interior materials, but embodiments of this disclosure are not limited thereto. In this case, the non-display panel can be used as a vibrating plate, and the vibration generating device 600 can cause the non-display panel to vibrate to output sound.

[0245] For example, an apparatus according to an embodiment of the present disclosure may include a passive vibration member (or a vibrating object) and a vibration generating device 600 disposed in the passive vibration member. For example, the passive vibration member may include a display panel having pixels configured to display an image, or it may include a non-display panel. For example, the passive vibration member may include a display panel having pixels configured to display an image, or it may be one or more of wood, plastic, glass, metal, cloth, fiber, rubber, paper, leather, mirror, vehicle interior material, vehicle window, building interior ceiling, building window, building interior material, aircraft interior material, and aircraft window, but embodiments of the present disclosure are not limited thereto. For example, the passive vibration member may include one or more of the following: a display panel including pixels configured to display an image, a screen panel on which an image from a display device is projected, a lighting panel, a sign panel, vehicle interior material, vehicle window, vehicle exterior material, building ceiling material, building interior material, building window, aircraft interior material, aircraft window, and a mirror, but embodiments of the present disclosure are not limited thereto. For example, the non-display panel may be a light-emitting diode (LED) lighting panel (or device), an organic light-emitting diode (OLED) lighting panel (or device), or an inorganic light-emitting diode (LED) lighting panel (or device), but the embodiments of this disclosure are not limited thereto. For example, the passive vibration member may include a display panel having pixels configured to display images, or may be one or more of a light-emitting diode (LED) lighting panel (or device), an organic light-emitting diode (OLED) lighting panel (or device), or an inorganic light-emitting diode (LED) lighting panel (or device), but the embodiments of this disclosure are not limited thereto.

[0246] According to another embodiment of this disclosure, the passive vibration member may include a plate. The plate may include a metallic material, or may include a single non-metallic material or a composite non-metallic material including one or more of the following: metal, wood, plastic, glass, cloth, fiber, rubber, paper, mirror, and leather, but the embodiments of this disclosure are not limited thereto. For example, the paper may be cone paper for a loudspeaker. For example, the cone paper may be pulp or foam plastic, but the embodiments of this disclosure are not limited thereto. For example, the passive vibration member may be a vibrating object, a vibrating plate, or a front member, but the embodiments of this disclosure are not limited thereto.

[0247] The vibration generating device 600 can be disposed in the rear surface of the display panel 500 to overlap with the display area (or passive vibration member) of the display panel 500. For example, the vibration generating device 600 can overlap with half or more of the display area corresponding to the display area of ​​the display panel 500. According to another embodiment of the present disclosure, the vibration generating device 600 can overlap with the entire display area of ​​the display panel 500.

[0248] The device according to embodiments of the present disclosure may further include a connecting member 650 (or a first connecting member) located between the vibration generating device 600 and the display panel or passive vibration member 500.

[0249] For example, the connecting member 650 can be disposed between the vibration generating device 600 and the rear surface of the display panel or passive vibration member 500, thus allowing the vibration generating device 600 to be connected or coupled to the rear surface of the passive vibration member 500. For example, the vibration generating device 600 can be connected or coupled to the rear surface of the display panel or passive vibration member 500 using the connecting member 650, thus allowing it to be supported by or disposed within the rear surface of the display panel or passive vibration member 500. For example, the vibration generating device 600 can be disposed within the rear surface of the display panel or passive vibration member 500 using the connecting member 650.

[0250] The connecting member 650 according to embodiments of the present disclosure may include a material comprising an adhesive layer having good adhesion or bonding force with respect to the rear surface of the display panel or passive vibration member 500 and each of the vibration generating device 600. For example, the connecting member 650 may include a foam pad, double-sided tape, or adhesive, but is not limited thereto. For example, the adhesive layer of the connecting member 650 may include epoxy resin, acrylic resin, silicone resin, or polyurethane, but embodiments of the present disclosure are not limited thereto. For example, the adhesive layer of the connecting member 650 may include an acrylic-based material having relatively good adhesion and high hardness among acrylic and polyurethane. Therefore, vibrations from the vibration generating device 600 can be well transmitted to the passive vibration member 500.

[0251] The adhesive layer of the connecting member 650 may also include additives, such as tackifiers, wax components, or antioxidants, but embodiments of this disclosure are not limited thereto. Additives can prevent the connecting member 650 from detaching (peeling off) from the display panel or passively vibrating member 500 due to vibrations of the vibration generating device 600. For example, the tackifier may be a rosin derivative, the wax component may be paraffin wax, and the antioxidant may be a phenolic antioxidant such as a thioester, but embodiments of this disclosure are not limited thereto.

[0252] According to another embodiment of this disclosure, the connecting member 650 may further include a hollow portion disposed between the vibration generating device 600 and the display panel or passive vibration member 500. The hollow portion of the connecting member 650 can provide an air gap between the vibration generating device 600 and the display panel or passive vibration member 500. Based on the air gap, the sound waves (or sound pressure levels) based on the vibration of the vibration generating device 600 can be prevented from being dispersed by the connecting member 650 and can be concentrated on the display panel or passive vibration member 500, thereby reducing or minimizing the vibration loss based on the connecting member 650, thereby increasing the sound pressure level characteristics and / or sound characteristics of the sound generated by the vibration of the display panel or passive vibration member 500.

[0253] The device according to embodiments of the present disclosure may further include a support member 700 disposed on the rear surface (or back side surface) of the passive vibration member 500.

[0254] The support member 700 may be disposed on the rear surface of the passive vibration member 500 or the display panel. For example, the support member 700 may cover the rear surface of the passive vibration member 500 or the display panel. For example, the support member 700 may include one or more of glass, metal, and plastic materials. For example, the support member 700 may be a rear structure, a fixed structure, a support structure, a support cover, a rear member, a shell, or a housing, but the terminology is not limited thereto. The support member 700 may be referred to by other terms such as cover bottom, plate bottom, rear cover, base frame, metal frame, metal chassis, chassis base, or m-chassis. For example, the support member 700 may be a support for the display panel and may be implemented as any type of frame or plate structure disposed on the rear surface of the passive vibration member 500.

[0255] The edges (or peripheries) or sharp corners of the support member 700 may have an inclined or curved shape through chamfering or rounding processes. For example, the glass material of the support member 700 may be sapphire glass. In another embodiment of this disclosure, the support member 700, which includes a metallic material, may include one or more of aluminum (Al), Al alloys, magnesium (Mg) alloys, and iron (Fe)-nickel (Ni) alloys.

[0256] The support member 700 according to the embodiments of the present disclosure may include a first support member 710 and a second support member 730.

[0257] The first support member 710 may cover the rear surface of the display panel 500. For example, the first support member 710 may be a plate member that covers the entire rear surface of the display panel 500. For example, the first support member 710 may be an inner plate comprising one or more materials selected from glass, metal and plastic.

[0258] The first support member 710 may be configured to be spaced apart from the last surface of the display panel 500 or the vibration generating device 600, with a gap space therebetween. For example, the gap space may be referred to as an air gap, a vibration space, or a sound-generating box, but the terminology is not limited thereto.

[0259] The second support member 730 may be disposed on the rear surface of the first support member 710. The second support member 730 may be a plate member covering the entire rear surface of the first support member 710. For example, the second support member 730 may include one or more materials selected from glass, metal and plastic. For example, the second support member 730 may be an outer plate, a rear plate, a back plate, a back cover or a rear cover, but the terminology is not limited thereto.

[0260] The support member 700 according to the embodiments of this disclosure may further include a connecting member 750 (or a second connecting member).

[0261] A connecting member 750 may be disposed between the first support member 710 and the second support member 730. For example, the first support member 710 may be connected to or linked to the second support member 730 using the connecting member 750. For example, the connecting member 750 may be an adhesive resin, double-sided tape, double-sided foam tape, double-sided foam pad, or double-sided adhesive foam pad, but embodiments of the present disclosure are not limited thereto. For example, the connecting member 750 may have elasticity for absorbing impact, but embodiments of the present disclosure are not limited thereto. For example, the connecting member 750 may be disposed in the entire region between the first support member 710 and the second support member 730. As another example, the connecting member 750 may be formed as a mesh structure including an air gap between the first support member 710 and the second support member 730.

[0262] The device according to embodiments of this disclosure may further include an intermediate frame 800. The intermediate frame 800 may be disposed between the rear edge (or rear periphery) of the display panel 500 (or passive vibration member) and the front edge portion (or front periphery portion) of the support member 700. The intermediate frame 800 may support one or more of the edge portions (or periphery portions) of the display panel 500 and the edge portions (or periphery portions) of the support member 700. The intermediate frame 800 may surround one or more of the side surfaces of each of the display panel 500 and the support member 700. The intermediate frame 800 may provide air space between the display panel 500 and the support member 700. The intermediate frame 800 may be referred to as an intermediate cabinet, intermediate cover, intermediate chassis, connecting member, frame, frame member, intermediate member, lateral member, or lateral cover member, but the terminology is not limited thereto.

[0263] The intermediate frame 800 according to embodiments of the present disclosure may include a first support portion 810 and a second support portion 830. For example, the first support portion 810 may be a support portion, but the terminology is not limited thereto. For example, the second support portion 830 may be a sidewall portion, but the terminology is not limited thereto.

[0264] The first support portion 810 can be disposed between the rear edge (or rear periphery) of the display panel 500 and the front edge (or front periphery) of the support member 700, thus providing a gap space GS between the display panel 500 and the support member 700. The front surface of the first support portion 810 can be connected to or attached to the rear edge of the display panel 500 via the first adhesive member 801. The rear surface of the first support portion 810 can be connected to or attached to the front edge of the support member 700 via the second adhesive member 803. For example, the first support portion 810 can have a single frame structure in the shape of a quadrilateral or a frame structure in the form of multiple dividers, but the embodiments of this disclosure are not limited thereto.

[0265] The second support portion 830 may be arranged parallel to the thickness direction Z of the device. For example, the second support portion 830 may be vertically connected to the outer surface of the first support portion 810 that is parallel to the thickness direction Z of the device. The second support portion 830 may surround one or more of the outer surfaces of the display panel 500 and the support member 700, thereby protecting the outer surface of each of the display panel 500 and the support member 700. The first support portion 810 may protrude from the inner surface of the second support portion 830 into the gap space between the display panel 500 and the support member 700.

[0266] The device according to embodiments of the present disclosure may include a panel connecting member (or connecting member) in place of the intermediate frame 800.

[0267] A panel connecting member can be disposed between the rear edge of the display panel 500 and the front edge of the support member 700, thus providing a gap space between the display panel 500 and the support member 700. The panel connecting member can be disposed between the rear edge of the display panel 500 and the front edge of the support member 700, and can attach the display panel 500 to the support member 700. For example, the panel connecting member can be implemented using double-sided tape, single-sided tape, double-sided foam tape, double-sided foam pad, or double-sided adhesive foam pad, but the embodiments of this disclosure are not limited thereto. For example, the adhesive layer of the panel connecting member can include epoxy resin, acrylic resin, silicone resin, or polyurethane, but the embodiments of this disclosure are not limited thereto. For example, to reduce or minimize the transmission of vibrations from the display panel 500 to the support member 700, the adhesive layer of the panel connecting member can include an acrylic-based material, such as acrylic or polyurethane, which has relatively good adhesion and high hardness. Therefore, the transmission of vibrations from the display panel 500 to the support member 700 can be reduced or minimized.

[0268] According to another embodiment of this disclosure, the intermediate frame 800 may be omitted. Instead of the intermediate frame 800, a panel connecting member or adhesive may be provided. According to another embodiment of this disclosure, instead of the intermediate frame 800, a partition may be provided.

[0269] According to embodiments of the present disclosure, at least one vibrating member for outputting sound from the vocal cords across a full range of tones can be configured using a sound device or a vibration device, thereby providing a thin and miniaturized device including a sound device or a vibration device.

[0270] The sound device or vibration generating device according to embodiments of this disclosure can be applied to sound devices installed in devices. Devices according to embodiments of this disclosure can be applied to mobile devices, video phones, smartwatches, watch phones, wearable devices, foldable devices, rollable devices, bendable devices, flexible devices, curved surface devices, portable multimedia players (PMPs), personal digital assistants (PDAs), electronic notebooks, desktop personal computers (PCs), laptop PCs, netbooks, workstations, navigation devices, car navigation devices, car display devices, televisions (TVs), wallpaper display devices, signage devices, game consoles, laptop computers, monitors, cameras, camcorders, home appliances, etc. Furthermore, the sound device or vibration generating device according to this disclosure can be applied to organic light-emitting devices or inorganic light-emitting devices. When the sound device or vibration generating device is applied to a lighting device, it can function as both a light source and a speaker. Furthermore, when the sound device or vibration generating device according to this disclosure is applied to a mobile device, it can be one or more of a speaker, a receiver, or a tactile device, but embodiments of this disclosure are not limited thereto.

[0271] The following describes a sound device and a device including a sound device according to embodiments of the present disclosure.

[0272] The sound device according to an embodiment of the present disclosure includes: a first vibrating member; a second vibrating member adjacent to the first vibrating member; a third vibrating member adjacent to the second vibrating member; a first vibrating device configured to vibrate the first and second vibrating members and output sounds of different first and second tone vocal cords; and a second vibrating device disposed on the rear surface of the third vibrating member and configured to vibrate the third vibrating member and output sounds of a third tone vocal cord different from the sounds of the first tone vocal cords.

[0273] According to some embodiments of the present disclosure, the first vibration device may be configured to vibrate a first vibration member to produce a sound from a first tone vocal cord and to vibrate a second vibration member to produce a sound from a second tone vocal cord.

[0274] According to some embodiments of this disclosure, a second vibrating member may be configured to surround a first vibrating member, and a third vibrating member may be configured to surround a first vibrating member and a second vibrating member.

[0275] According to some embodiments of this disclosure, the second vibration member may be configured to be separate from the first vibration member, and the third vibration member may be configured to be separate from the second vibration member, with a gap space inserted between the third vibration member and the second vibration member.

[0276] According to some embodiments of this disclosure, the second vibrating member may be located around the first vibrating member.

[0277] According to some embodiments of this disclosure, the third vibrating member may be located around the second vibrating member.

[0278] According to some embodiments of the present disclosure, the first vibration device may include: a vibration portion; a first electrode portion located at a first surface of the vibration portion; and a second electrode portion located at a surface of the vibration portion that is different from the first surface.

[0279] According to some embodiments of this disclosure, the vibrating part may include one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0280] According to some embodiments of this disclosure, the vibrating portion may include a plurality of first portions and a plurality of second portions located between the plurality of first portions, the plurality of second portions including organic materials, and each of the plurality of first portions including one or more of piezoelectric inorganic materials and piezoelectric organic materials.

[0281] According to some embodiments of this disclosure, it may also include a first cover member located at the first electrode portion and a second cover member located at the second electrode portion.

[0282] According to some embodiments of this disclosure, it may also include a first adhesive member located between the first vibration device and each of the first vibration member and the second vibration member; and a second adhesive member located between the third vibration member and the first vibration device.

[0283] According to some embodiments of this disclosure, the modulus of the first adhesive member may be different from the modulus of the second adhesive member.

[0284] According to some embodiments of this disclosure, the modulus of the first adhesive member may be greater than the modulus of the second adhesive member.

[0285] According to some embodiments of this disclosure, the thickness of the first adhesive member may be different from the thickness of the second adhesive member.

[0286] According to some embodiments of this disclosure, the thickness of the first adhesive member may be less than the thickness of the second adhesive member.

[0287] According to some embodiments of this disclosure, the second vibration device may include: a frame; a spool located on the frame; a magnet component disposed inside or outside the spool; a coil wound around the spool; and a damper connected between the frame and the spool.

[0288] According to some embodiments of this disclosure, the third vibration member may further include a recessed portion and a protruding portion, and the spool overlaps with the protruding portion.

[0289] According to some embodiments of this disclosure, the first tone vocal cord may include a high-tone vocal cord, the second tone vocal cord may include a mid-tone vocal cord, and the third tone vocal cord may include a low-tone vocal cord.

[0290] According to some embodiments of this disclosure, the second vibrating member may extend into a portion of the first vibrating device.

[0291] According to some embodiments of this disclosure, the second vibration member may protrude to the external portion of the first vibration device.

[0292] According to some embodiments of this disclosure, the second vibration member may overlap with the first vibration device.

[0293] According to some embodiments of this disclosure, the third vibration member may overlap with the second vibration device.

[0294] According to some embodiments of this disclosure, the third vibration member may further include a recessed portion and a protruding portion, and the first vibration member and the second vibration member are disposed in the recessed portion.

[0295] According to some embodiments of this disclosure, the second vibrating member may protrude to the outer portion of the first vibrating device, and the sound device may further include a fourth vibrating member disposed in the space between the second and third vibrating members.

[0296] According to some embodiments of this disclosure, the fourth vibrating member may be configured to fill all the space between the second and third vibrating members.

[0297] According to some embodiments of this disclosure, the third vibration member may further include a recessed portion and a protruding portion, and the first vibration member, the second vibration member, and the fourth vibration member may be disposed in the recessed portion.

[0298] According to some embodiments of this disclosure, the fourth vibrating member can output a low-pitched vocal cord sound.

[0299] According to some embodiments of this disclosure, the fourth vibrating member may include one or more of paper, synthetic resin, and metal.

[0300] According to some embodiments of this disclosure, the first vibrating member may include one or more of ceramics, metals, diamonds, synthetic resins, and silk.

[0301] According to some embodiments of this disclosure, the second and third vibrating components may include one or more of paper, synthetic resin, and metal.

[0302] The device according to another embodiment of this disclosure includes a passive vibrating member and a sound device disposed on the rear surface of the passive vibrating member. The passive vibrating member may include a metallic material, or a single or composite non-metallic material selected from wood, rubber, plastic, glass, fiber, cloth, paper, mirror, and leather.

[0303] The device according to another embodiment of the present disclosure includes a passive vibrating member and a sound device disposed on the rear surface of the passive vibrating member. The passive vibrating member may include one or more of a display panel, a light-emitting diode illumination panel, an organic light-emitting diode illumination panel, and an inorganic light-emitting diode illumination panel having pixels configured to display images.

[0304] The device according to another embodiment of this disclosure includes a passive vibration member and a sound device disposed on the rear surface of the passive vibration member. The passive vibration member may include one or more of the following: a display panel including pixels configured to display images, a screen panel on which images from a display device are projected, a lighting panel, a sign panel, vehicle interior materials, vehicle windows, vehicle exterior materials, building ceiling materials, building interior materials, building windows, aircraft interior materials, aircraft windows, metal, wood, rubber, plastic, glass, fiber, cloth, paper, leather, and mirrors.

[0305] The apparatus according to embodiments of the present disclosure may include a vibration generating device that vibrates a display panel or a passively vibrating member, thereby generating sound that travels toward the front surface of the display panel or the passively vibrating member.

[0306] In the apparatus according to embodiments of the present disclosure, at least one vibrating member for outputting sound from the vocal cords across a full range of tones can be configured with a sound device or a vibration device, thereby providing a thin and miniaturized apparatus including a sound device or a vibration device.

[0307] It will be apparent to those skilled in the art that various modifications and variations can be made to the sound device and electronic devices including therein without departing from the technical spirit and scope of this disclosure. Therefore, this disclosure is intended to cover such modifications and variations as long as they fall within the scope of the appended claims and their equivalents.

[0308] Cross-references to related applications

[0309] This application claims the benefit of Korean Patent Application No. 10-2021-0189969, filed on December 28, 2021, which is incorporated herein by reference as if fully set forth herein.

Claims

1. A sound device, the sound device comprising: First vibrating component; A second vibration component, which is adjacent to the first vibration component; A third vibration component, which is adjacent to the second vibration component; A first vibration device is configured to vibrate the first vibration member and the second vibration member and output sounds from the first tone vocal cords and the second tone vocal cords, respectively. as well as A second vibration device is disposed on the rear surface of the third vibration member and configured to cause the third vibration member to vibrate and output a sound of a third tone vocal cord that is different from the sound of the first tone vocal cord. Wherein, the second vibrating member is configured to be separate from the first vibrating member, and The third vibration member is configured to be separate from the second vibration member, and a gap space is inserted between the third vibration member and the second vibration member.

2. The sound device according to claim 1, wherein, The first vibration device is configured to vibrate the first vibration member to produce the sound of the first tone vocal cords, and to vibrate the second vibration member to produce the sound of the second tone vocal cords.

3. The sound device according to claim 1, wherein, The second vibrating member is configured to surround the first vibrating member, and The third vibration member is configured to surround the first vibration member and the second vibration member.

4. The sound device according to claim 1, wherein, The second vibrating component is located around the first vibrating component.

5. The sound device according to claim 1, wherein, The third vibration component is located around the second vibration component.

6. The sound device according to claim 1, wherein, The first vibration device includes: Vibrating part; A first electrode portion, the first electrode portion being located at a first surface of the vibrating portion; and The second electrode portion is located on a surface of the vibrating portion that is different from the first surface.

7. The sound device according to claim 6, wherein, The vibrating component includes one or more of piezoelectric inorganic materials and piezoelectric organic materials.

8. The sound device according to claim 6, wherein, The vibrating component includes a plurality of first parts and a plurality of second parts located between the plurality of first parts, the plurality of second parts comprising organic material, and Each of the plurality of first parts includes one or more of piezoelectric inorganic materials and piezoelectric organic materials.

9. The sound device according to claim 6, further comprising: A first cover component is located at the first electrode portion; as well as The second cover member is located at the second electrode portion.

10. The sound device according to claim 1, further comprising: A first adhesive member is located between the first vibrating device and each of the first vibrating member and the second vibrating member; as well as A second adhesive component is located between the third vibrating component and the first vibrating device.

11. The sound device according to claim 10, wherein, The modulus of the first adhesive component is different from that of the second adhesive component.

12. The sound device according to claim 10, wherein, The modulus of the first adhesive component is greater than that of the second adhesive component.

13. The sound device according to claim 10, wherein, The thickness of the first adhesive component is different from the thickness of the second adhesive component.

14. The sound device according to claim 10, wherein, The thickness of the first adhesive component is less than the thickness of the second adhesive component.

15. The sound device according to claim 1, wherein, The second vibration device includes: frame; A spool, the spool being located on the frame; A magnet component, wherein the magnet component is disposed inside or outside the spool; A coil, the coil being wound around the spool; and A damper is connected between the frame and the spool.

16. The sound device according to claim 15, wherein, The third vibration component also includes a recessed portion and a protruding portion, and The spool overlaps with the protruding portion.

17. The sound device according to claim 1, wherein, The first tone vocal cords include high-tone vocal cords. The second tone vocal cords include the mid-tone vocal cords, and The third tone vocal cord includes the low tone vocal cord.

18. The sound device according to claim 1, wherein, The second vibrating component extends into a portion of the first vibrating device.

19. The sound device according to claim 1, wherein, The second vibration component protrudes outward from the external part of the first vibration device.

20. The sound device according to claim 1, wherein, The second vibration component overlaps with the first vibration device.

21. The sound device according to claim 1, wherein, The third vibration component overlaps with the second vibration device.

22. The sound device according to claim 1, wherein, The third vibration component also includes a recessed portion and a protruding portion, and The first vibration member and the second vibration member are disposed in the recessed portion.

23. The sound device according to claim 1, wherein, The second vibrating member protrudes outward from the outer portion of the first vibrating device, and The sound device further includes a fourth vibration component disposed in the space between the second vibration component and the third vibration component.

24. The sound device according to claim 23, wherein, The fourth vibrating member is configured to fill all the space between the second and third vibrating members.

25. The sound device according to claim 23, wherein, The third vibration component also includes a recessed portion and a protruding portion, and The first vibration member, the second vibration member, and the fourth vibration member are disposed in the recessed portion.

26. The sound device according to claim 23, wherein, The fourth vibrating component outputs a low-pitched vocal cord sound.

27. The sound device according to claim 23, wherein, The fourth vibrating component includes one or more of paper, synthetic resin, and metal.

28. The sound device according to claim 1, wherein, The first vibrating component includes one or more of ceramics, metals, diamonds, synthetic resins, and silk.

29. The sound device according to claim 1, wherein, The second and third vibrating components comprise one or more of paper, synthetic resin, and metal.

30. An electronic device, the electronic device comprising: Passive vibration components; as well as The sound device according to any one of claims 1 to 29, wherein the sound device is disposed on the rear surface of the passive vibrating member.

31. The electronic device according to claim 30, in, The passive vibration component includes metallic materials, or one or more single or composite non-metallic materials selected from wood, rubber, plastic, glass, fiber, cloth, paper, mirror, and leather.

32. The electronic device according to claim 30, in, The passive vibration component includes one or more of a display panel having pixels configured to display images, a light-emitting diode (LED) illumination panel, an organic light-emitting diode (OLED) illumination panel, and an inorganic light-emitting diode (LED) illumination panel.

33. The electronic device according to claim 30, in, The passive vibration component includes one or more of the following: a display panel comprising pixels configured to display images, a screen panel on which images from a display device are projected, a lighting panel, a sign panel, vehicle interior materials, vehicle windows, vehicle exterior materials, building ceiling materials, building interior materials, building windows, aircraft interior materials, aircraft windows, metal, wood, rubber, plastic, glass, fiber, cloth, paper, leather, and mirrors.

34. The electronic device according to claim 30, further comprising: A connecting member configured to connect the sound device to the rear surface of the passive vibrating member and including a hollow portion disposed between the sound device and the passive vibrating member.

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