CN-116419131-B - Device for outputting sound and vehicle device comprising the same

Abstract

The present disclosure discloses an apparatus for outputting sound and a vehicle apparatus including the same. An apparatus includes a vibration member, a housing at a rear surface of the vibration member, a connection member between the vibration member and the housing, and a vibration apparatus configured to vibrate the vibration member, the vibration member including at least one flat portion and at least one meandering portion adjacent to the at least one flat portion.

Inventors

• GAO YOUSHAN
• JIN XIULIAN

Assignees

• 乐金显示有限公司

Dates

Publication Date

20260512

Application Date

20221104

Priority Date

20211231

Claims (20)

1. 1. An apparatus for outputting sound, comprising: A vibration member; A housing located at a rear surface of the vibration member; A connection member between the vibration member and the housing, and A vibration device configured to vibrate the vibration member, Wherein the vibration member includes: At least one flat portion, and At least one meandering section adjacent to said at least one flat section, Wherein the vibration member includes a first region, a second region adjacent to the first region, and a third region adjacent to the second region, Wherein the first region to the third region have different bending states, Wherein the vibration apparatus comprises at least one first vibration device at the first region, at least one second vibration device at the second region, and at least one third vibration device at the third region, and Wherein the at least one first vibration device and the at least one third vibration device have different mechanical mass coefficients.
2. 2. The apparatus of claim 1, wherein the at least one tortuous portion comprises one or more of at least one concave curved portion and at least one convex curved portion.
3. 3. The apparatus of claim 2, wherein: The first region includes at least one flat portion; the second region including at least one concavely curved portion, and The third region includes at least one convex curvature.
4. 4. The apparatus of claim 1, wherein: the at least one first vibration device has a mechanical mass coefficient less than 100; the at least one third vibration device having a mechanical mass coefficient greater than 400, and The at least one second vibration device has a mechanical mass coefficient of 100 to 400.
5. 5. The apparatus of claim 1, further comprising a curvature variable layer in contact with the second surface of the vibrating member, Wherein the curvature variable layer comprises: A curvature variable portion, and A protection member surrounding the curvature variable portion.
6. 6. The apparatus of claim 5, further comprising a curvature variable layer controller configured to provide a curvature variable signal to the curvature variable layer, Wherein the curvature variable layer controller includes: a first output terminal configured to output a first polarity signal, and A second output terminal configured to output a second polarity signal, Wherein the first output terminal is electrically connected to the vibration member, and Wherein the second output terminal is electrically connected to the curvature variable portion.
7. 7. The apparatus of claim 1, wherein the housing comprises: a bottom portion spaced apart from the vibration member, and A side portion protruding from a peripheral portion of the bottom portion toward the vibration member.
8. 8. The apparatus of claim 7, further comprising a curvature varying device mounted on the bottom portion and configured to change a bending state of the vibration member, Wherein the curvature varying device includes: A fixing portion fixed to the bottom portion; A first rotary link portion fixed to the fixed portion at one side of the first rotary link portion; a second rotary link portion connected to the other side of the first rotary link portion; a pivot portion rotatably fixing the first and second rotary link portions, and And a supporting portion fixed to the other end of the second rotary link portion and coupled to a rear surface of the vibration member.
9. 9. The device of claim 1, further comprising a demultiplexer configured to separate the same sound signal applied to the vibration device into signals having different frequencies, and comprising a filter.
10. 10. The apparatus of claim 1, wherein each of the at least one first vibration device, the at least one second vibration device, and the at least one third vibration device comprises: A vibrating portion; A first electrode portion at a first surface of the vibrating portion, and A second electrode portion at a second surface of the vibrating portion different from the first surface.
11. 11. The apparatus of claim 10, wherein the vibration apparatus further comprises: a first cover member at the first electrode portion, and A second cover member at the second electrode portion.
12. 12. The apparatus of claim 11, wherein the vibration apparatus further comprises: A first adhesive layer between the first cover member and the first electrode portion, and A second adhesive layer between the second cover member and the second electrode portion.
13. 13. The apparatus of claim 10, wherein the vibration portion comprises an inorganic material portion having piezoelectric properties.
14. 14. The apparatus of claim 10, wherein the vibration portion comprises: a plurality of inorganic material portions having piezoelectric characteristics, and An organic material portion between the plurality of inorganic material portions.
15. 15. The apparatus of claim 1, wherein the vibration member comprises a metallic material or comprises a single nonmetallic material of wood, rubber, plastic, glass, fiber, cloth, paper, mirror, carbon, and leather or a composite nonmetallic material of one or more of wood, rubber, plastic, glass, fiber, cloth, paper, mirror, carbon, and leather.
16. 16. The apparatus of claim 1, wherein the vibrating member comprises one or more of a display panel comprising pixels configured to display an image, a light emitting diode illumination panel, an organic light emitting illumination panel, and an inorganic light emitting illumination panel.
17. 17. The device of claim 1, wherein the vibration member comprises any one of a display panel including pixels configured to display an image, a screen panel onto which an image is projected from a display device, an illumination panel, a signage panel, a vehicle interior material, a vehicle glazing, a vehicle exterior material, a building ceiling material, a building interior material, a building glazing, an aircraft interior material, an aircraft glazing, metal, wood, rubber, plastic, glass, fiber, cloth, paper, leather, carbon, and a mirror.
18. 18. An apparatus for outputting sound, comprising: A vibration member; A housing located at a rear surface of the vibration member; A connection member between the vibration member and the housing, and A vibration device configured to vibrate the vibration member, Wherein the vibration member includes: At least one flat portion, and At least one concave curve or at least one convex curve disposed adjacent to the at least one flat portion, Wherein the vibration member includes a first region, a second region, a third region, and a fourth region that do not overlap each other, Wherein the second region includes the at least one flat portion, Wherein the first region and the fourth region comprise the at least one convex curvature, Wherein the third region comprises the at least one concavely curved portion, Wherein the vibration apparatus comprises at least one first vibration device at the second region, at least one third vibration device at the first and fourth regions, and at least one second vibration device at the third region, and Wherein the at least one first vibration device and the at least one third vibration device have different mechanical mass coefficients.
19. 19. The apparatus of claim 18, wherein: the at least one first vibration device has a mechanical mass coefficient less than 100; the at least one third vibration device having a mechanical mass coefficient greater than 400, and The at least one second vibration device has a mechanical mass coefficient of 100 to 400.
20. 20. An apparatus for outputting sound, comprising: A vibration member; A housing located at a rear surface of the vibration member; A connection member between the vibration member and the housing, and A vibration device configured to vibrate the vibration member, Wherein the vibration member includes: At least one flat portion, and At least one concave curve or at least one convex curve disposed adjacent to the at least one flat portion, Wherein the vibration member includes a first region, a second region, a third region, and a fourth region that do not overlap each other, Wherein the second region includes the at least one flat portion, Wherein the third region comprises the at least one convex curved portion, Wherein the first region and the fourth region comprise the at least one concave curve, Wherein the vibration apparatus comprises at least one first vibration device at the second region, at least one third vibration device at the third region, and at least one second vibration device at the first region and the fourth region, and Wherein the at least one first vibration device and the at least one third vibration device have different mechanical mass coefficients.

Description

Device for outputting sound and vehicle device comprising the same Cross Reference to Related Applications The present application claims the benefits and priority of korean patent application No. 10-2021-0194808 filed on 12 months 31 of 2021, which is incorporated herein by reference for all purposes as if fully set forth herein. Technical Field The present disclosure relates to an apparatus and a vehicle apparatus including the apparatus. Background The device comprises a separate speaker or a sound device providing sound. When the speakers are arranged in the device, the speakers occupy space, and for this reason, the design and spatial arrangement of the device are limited. The speaker applied to the device may be, for example, an actuator including a magnet and a coil. However, when the actuator is applied to the apparatus, the thickness of the apparatus is thickened. Accordingly, a piezoelectric element for realizing a thin thickness attracts much attention. Since the piezoelectric element has a brittle characteristic, the piezoelectric element is easily damaged by external impact, and for this reason, there is a problem of low reliability in sound reproduction. Also, when a speaker such as a piezoelectric element is applied to a flexible device, there is a problem in that damage occurs due to a fragile characteristic. The description provided in the background section should not be taken as prior art merely because it is referred to or otherwise associated with it in this section. The background section may include information describing one or more aspects of the subject technology and the description of this section is not intended to limit the invention. Disclosure of Invention The inventors of the present disclosure have recognized the above-described problems and disadvantages of the related art, and have conducted extensive studies and experiments in order to realize a vibration apparatus that can improve sound quality and sound pressure level characteristics. Through extensive research and experimentation, the inventors have thus invented a new device that can improve sound quality and a vehicle device including the same. Accordingly, embodiments of the present disclosure are directed to an apparatus and a vehicle apparatus including the same that substantially obviate one or more problems due to limitations and disadvantages of the related art. An aspect of the present disclosure is to provide a device that may vibrate a vibration member or a vibration object to generate vibration or sound and may improve sound characteristics and/or sound pressure level characteristics, and a vehicle device including the same. Another aspect of the present disclosure is to provide a vibration apparatus having a simplified structure, an apparatus including the vibration apparatus, and a vehicle apparatus including the apparatus. Additional features, advantages, and aspects of the disclosure will be set forth in the description which follows, and in part will be apparent from the disclosure, or may be learned by practice of the inventive concepts provided herein. Other features, advantages, and aspects of the disclosure may be realized and attained by the structure provided in the disclosure, or the description derivable therefrom, and the claims and drawings of the disclosure. To achieve these and other advantages and in accordance with the purpose of the present disclosure, as embodied and broadly described herein, an apparatus may include a vibration member, a housing at a rear surface of the vibration member, a connection member between the vibration member and the housing, and a vibration apparatus configured to vibrate the vibration member. The vibration member may include at least one flat portion and at least one meandering portion adjacent to the at least one flat portion. In another aspect, an apparatus may include a vibration member, a housing at a rear surface of the vibration member, a connection member between the vibration member and the housing, and a vibration apparatus configured to vibrate the vibration member. The vibration member includes at least one flat portion, at least one concave curved portion or at least one convex curved portion disposed adjacent to the at least one flat portion. The vibration member may include first to fourth regions that do not overlap each other. The second region may include at least one flat portion, the first and fourth regions may include at least one convex curved portion, and the third region may include at least one concave curved portion. In another aspect, an apparatus may include a vibration member, a housing at a rear surface of the vibration member, a connection member between the vibration member and the housing, and a vibration apparatus configured to vibrate the vibration member. The vibration member may include at least one flat portion, and at least one concave curved portion or at least one convex curved portion disposed adjacent to the at le