Search

KR-102963965-B1 - SOUND APPARATUS AND SOUND SYSTEM COMPRISING THE SAME

KR102963965B1KR 102963965 B1KR102963965 B1KR 102963965B1KR-102963965-B1

Abstract

An acoustic device according to some embodiments of the present specification comprises a vibrating member, a housing configured to cover the rear surface of the vibrating member, and a vibrating device having one or more vibrating elements configured to vibrate the vibrating member, wherein the vibrating member may include a non-planar structure.

Inventors

  • 김대호
  • 김광호
  • 박승렬
  • 김치완
  • 손민호
  • 오준석
  • 고유선
  • 유경열
  • 최영락
  • 박관호
  • 최민규
  • 이정범
  • 정인찬
  • 전승오

Assignees

  • 엘지디스플레이 주식회사

Dates

Publication Date
20260511
Application Date
20210630

Claims (20)

  1. Vibration member; A housing configured to cover the rear surface of the above-mentioned vibration member; and A vibration device comprising one or more vibration elements configured to vibrate the above-mentioned vibration member, and The above-mentioned vibrating member includes a non-planar structure, and The above one or more vibration elements include one or more first vibration elements, one or more second vibration elements, and one or more third vibration elements, and The above one or more first vibration elements are configured to vibrate a first region of the vibration member, and The above one or more second vibration elements are configured to vibrate a second region of the vibration member, and The above one or more third vibration elements are configured to vibrate a third region of the vibration member, and The above housing is, A first sound limiting member disposed around one or more of the first vibration elements; and An acoustic device comprising a second sound limiting member disposed around one or more third vibration elements.
  2. In Article 1, An acoustic device having a front surface opposite to the rear surface of the above-mentioned vibrating member having the above-mentioned non-planar structure.
  3. In Article 2, An acoustic device in which the above-mentioned non-planar structure includes a curved structure or an inclined structure.
  4. In Article 1, An acoustic device wherein the above-mentioned vibrating member comprises any one of a circular shape, an elliptical shape, and a polygonal shape having three or more vertices.
  5. In Article 1, An acoustic device having a non-planar structure formed by one or more of one or more concave parts and one or more convex parts, wherein the above-mentioned vibrating member is a vibrating member.
  6. In Article 1, The above vibration device includes first to n (n is a natural number greater than or equal to 3) vibration elements connected to the rear surface of the vibration member, and An acoustic device in which the spacing between the first to nth vibration elements is 3mm or more and 5mm or less.
  7. In Article 6, An acoustic device, wherein, based on a first direction, the distance between each of the first vibration element and the nth vibration element and the end of the vibration member is smaller than the length of one vibration element and larger than the distance between adjacent vibration elements.
  8. In Article 6, The above-mentioned vibration member includes first to n regions connected to each of the first to n vibration elements, and A sound device in which sound output from one or more of the first to n regions has a different frequency range from sound output from the remaining regions.
  9. In Article 1, The above vibration device includes first to n (n is a natural number greater than or equal to 3) vibration elements connected to the rear surface of the vibration member, and The first to nth vibration elements are arranged at regular intervals along the first direction, and Acoustic device, wherein, based on the first direction, the distance between each of the first vibration element and the nth vibration element and the end of the vibration member is smaller than the length of one vibration element.
  10. Housing having a receiving space; A vibrating member configured to cover the receiving space of the above housing and having a first to n-th region (n is a natural number greater than or equal to 3); and A vibration device comprising one or more first to nth vibration elements configured to vibrate each of the first to nth regions of the vibration member, and The above housing includes a space separator that separates the receiving space into first to n spaces corresponding to each of the first to n regions, and The above housing is, A rear portion covering the above-mentioned vibration member and the bottom portion covering the above-mentioned vibration device; A first side connected to a first edge portion of the bottom portion parallel to the first direction; A second side connected to a second edge portion of the bottom portion parallel to a first edge portion of the bottom portion; A third side connected to a third edge portion of the bottom part parallel to the second direction intersecting the first direction; and It includes a fourth side connected to a fourth edge portion of the bottom portion parallel to a third edge portion of the bottom portion, and The above space separation unit is, A first partition wall connected between the first side and the second side and separating the first space and the second space; and It includes a second partition wall connected between the first side and the second side and separating the second space and the third space, The above-mentioned vibrating member includes the first to third regions arranged along the first direction, and The above one or more first vibration elements are configured to vibrate the first region of the vibration member, and The above one or more second vibration elements are configured to vibrate the second region of the vibration member, and The above one or more third vibration elements are configured to vibrate the third region of the vibration member, and The above housing is, A first sound limiting member disposed around one or more of the first vibration elements; and An acoustic device further comprising a second sound limiting member disposed around one or more of the above-mentioned third vibration elements.
  11. In Article 10, An acoustic device in which sound output from one or more of the first to n regions of the above-mentioned vibrating member has a different frequency range from sound output from the remaining region.
  12. In Article 10, The above space separation unit is, A first partition wall disposed between the first space and the second space; and An acoustic device comprising a second partition wall disposed between the second space and the third space.
  13. delete
  14. delete
  15. In Article 10, The above housing is, A first sound separation member disposed in the first space between the one or more first vibration elements and the first partition wall; and An acoustic device further comprising a second sound separator disposed in the third space between the one or more third vibration elements and the second partition wall.
  16. In Article 15, Each of the above first and second sound separation parts is, One or more ribs protruding from one or more inner surfaces of the first side and the second side along the second direction; and An acoustic device comprising one or more sound separation members disposed between the one or more lips and the rear surface of the vibration member.
  17. In Article 15, Each of the above first and second sound separation parts is, A plurality of ribs protruding from one or more inner surfaces of the first side and the second side so as to have different lengths along the second direction; and An acoustic device comprising a plurality of sound separation members disposed between each of the plurality of lips and the rear surface of the vibration member.
  18. In Article 17, Acoustic device in which the length of each of the plurality of lips changes as it approaches the space separation part
  19. In Article 17, An acoustic device in which the length of each of the plurality of lips above becomes longer as it approaches the space separation part.
  20. delete

Description

Sound apparatus and sound system comprising the same This specification relates to an acoustic device and an acoustic system including the same. Recently, there has been an increasing demand for audio devices or soundbars that output sound through one or more speakers. However, soundbars have a problem in that sound quality characteristics and/or sound pressure characteristics are degraded due to acoustic interference between multiple speakers. FIG. 1 is a perspective view showing an acoustic device according to one embodiment of the present specification. Figure 2 is a cross-sectional view of line A-A' shown in Figure 1. Figure 3 is a plan view showing the arrangement structure of the vibration element illustrated in Figure 2. Figure 4 is another cross-sectional view of A-A' shown in Figure 1. FIG. 5 is another cross-sectional view of A-A' shown in FIG. 1. Figure 6 is another cross-sectional view of A-A' shown in Figure 1. FIG. 7a is a plan view showing an acoustic device according to another embodiment of the present specification. FIG. 7b is a plan view showing an acoustic device according to another embodiment of the present specification. FIG. 7c is a plan view showing an acoustic device according to another embodiment of the present specification. Figure 8 is another cross-sectional view of line A-A' shown in Figure 1. FIG. 9 shows the vibrating member and a plurality of vibrating elements illustrated in FIG. 8. FIG. 10a is another cross-sectional view of line A-A' shown in FIG. 1. FIG. 10b is another cross-sectional view of line A-A' shown in FIG. 1, and FIG. 11 is a plan view showing an acoustic device according to another embodiment of the present specification. Figure 12 is a cross-sectional view of line B-B' shown in Figure 11. FIG. 13 is a perspective view showing the housing illustrated in FIG. 11 and FIG. 12. FIG. 14 is a plan view showing an acoustic device according to another embodiment of the present specification. FIG. 15 is a cross-sectional view of line C-C' shown in FIG. 14, and FIG. 16 is a conceptual diagram showing directional sound output from an acoustic device according to another embodiment of the present specification. FIG. 17 is a drawing showing a vibration element according to one embodiment of the present specification. FIG. 18 is a cross-sectional view of line D-D' shown in FIG. 17. FIG. 19 is a perspective view showing the piezoelectric vibrating part illustrated in FIG. 18. FIG. 20a is a perspective view showing a piezoelectric vibrating part according to another embodiment of the present specification. FIG. 20b is a perspective view showing a piezoelectric vibrating part according to another embodiment of the present specification. FIG. 20c is a perspective view showing a piezoelectric vibrating part according to another embodiment of the present specification. FIG. 20d is a perspective view showing a piezoelectric vibrating part according to another embodiment of the present specification. FIG. 21 is a drawing showing a vibration element according to another embodiment of the present specification. FIG. 22 is a cross-sectional view of line E-E' shown in FIG. 21. FIG. 23 is a drawing showing a vibration element according to another embodiment of the present specification. FIG. 24 is a plan view showing a vibration element of a vibration device illustrated in FIG. 14 to FIG. 16. FIG. 25 is a cross-sectional view of line F-F' shown in FIG. 24. FIG. 26 is a drawing showing a vibration element according to another embodiment of the present specification. FIG. 27 is a drawing showing a vibration element according to another embodiment of the present specification. FIG. 28 is a cross-sectional view of the line G-G' shown in FIG. 27. FIG. 29 is a side view of the cross-section of line H-H' shown in FIG. 27. FIG. 30 is a drawing showing a vibration element according to another embodiment of the present specification. FIG. 31 is a cross-sectional view of line I-I' shown in FIG. 30. FIG. 32 is a drawing showing a vibration element according to another embodiment of the present specification. FIG. 33 is a drawing showing an acoustic device according to another embodiment of the present specification. FIG. 34 is a drawing showing the main cable and the first to nth signal cables illustrated in FIG. 33. FIG. 35 is a waveform diagram showing the output signal of the acoustic data generation circuit shown in FIG. 33. FIG. 36 is a drawing showing an acoustic device according to another embodiment of the present specification. FIG. 37 is a drawing showing an acoustic system according to one embodiment of the present specification. FIG. 38 is a drawing showing the panel driving circuit and speaker device of the display device illustrated in FIG. 37. FIG. 39 is a conceptual diagram illustrating directional acoustics of an acoustic system according to one embodiment of the present specification. The advantages and features of this specification and the methods for achieving them will becom