Title:
DISPLAY APPARATUS, SOUND GENERATING SUBSTRATE, AND PROJECTION SCREEN
Document Type and Number:
WIPO Patent Application WO/2020/253142
Kind Code:
A1
Abstract:
A display apparatus, a sound generating substrate (1), and a projection screen (01). The display apparatus comprises the projection screen (01) and a signal providing assembly (02); the projection screen (01) comprises an optical diaphragm (2), an exciter set (3), and the sound generating substrate (1); the sound generating substrate (1) comprises a cellular layer (11); the cellular layer (11) comprises multiple cellular holes (111); the rigidity of the cellular hole (111) in a first direction (y) is greater than that of the cellular hole (111) in a second direction (x); the optical diaphragm (2) is provided at one side of the sound generating substrate (1); the exciter set (3) is provided at the other side of the sound generating substrate (1); the exciter set (3) is used for transmitting vibration to the sound generating substrate (1) by means of a vibration output end so as to excite the sound generating substrate (1) to vibrate.
Inventors:
WANG HAIYING (CN)
YANG JIANXIN (CN)
ZHANG CHAN (CN)
YANG JIANXIN (CN)
ZHANG CHAN (CN)
Application Number:
PCT/CN2019/123325
Publication Date:
December 24, 2020
Filing Date:
December 05, 2019
Export Citation:
Assignee:
HISENSE VISUAL TECH CO LTD (CN)
International Classes:
G03B21/56
Foreign References:
| CN208273238U | 2018-12-21 | |||
| CN208110252U | 2018-11-16 | |||
| CN201623850U | 2010-11-03 | |||
| CN108462917A | 2018-08-28 | |||
| CN208273239U | 2018-12-21 | |||
| JP2002090887A | 2002-03-27 |
Attorney, Agent or Firm:
QINGDAO LAWSCI INTELLECTUAL PROPERTY CO., LTD. (CN)
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