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Title:
BACKLIGHT MODULE AND MANUFACTURING METHOD THEREFOR, AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/174482
Kind Code:
A1
Abstract:
The present invention provides a backlight module and a manufacturing method therefor, and a display device. The backlight module comprises: a light guide plate having a first surface and a second surface that are opposite to each other; a reflecting layer provided at a position close to the first surface of the light guide plate; and a piezoelectric unit provided on the surface of the reflecting layer against the light guide plate. The piezoelectric unit is used for generating deformation along a direction close to the first surface and a direction against the first surface according to an audio voltage applied on the piezoelectric unit, and driving the reflecting layer to deform, so as to produce sound.

Inventors:
YIN, Qingping (No.9 Dize Rd, BDA, Beijing 6, 100176, CN)
WANG, Qian (No.9 Dize Rd, BDA, Beijing 6, 100176, CN)
WANG, Jianan (No.9 Dize Rd, BDA, Beijing 6, 100176, CN)
LI, Tao (No.9 Dize Rd, BDA, Beijing 6, 100176, CN)
Application Number:
CN2019/076733
Publication Date:
September 19, 2019
Filing Date:
March 01, 2019
Export Citation:
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Assignee:
BOE TECHNOLOGY GROUP CO., LTD. (No.10 Jiuxianqiao Rd, Chaoyang District, Beijing 5, 100015, CN)
BEIJING BOE DISPLAY TECHNOLOGY CO., LTD. (No. 118 Jinghaiyilu, BDA, Beijing 6, 100176, CN)
International Classes:
G02F1/13357; H04R17/00
Foreign References:
CN103852927A2014-06-11
CN101273660A2008-09-24
Attorney, Agent or Firm:
TEE&HOWE INTELLECTUAL PROPERTY ATTORNEYS (Yuan CHEN, 10th Floor Tower D, Minsheng Financial Center, 28 Jianguomennei Avenue,Dongcheng District, Beijing 5, 100005, CN)
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