Title:
VIEWING ANGLE DIFFUSION DIAPHRAGM AND DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/108797
Kind Code:
A1
Abstract:
The present invention provides a viewing angle diffusion diaphragm and a display device. The viewing angle diffusion diaphragm comprises a substrate, a plurality of prism structures located on the surface of the substrate, and a dielectric layer filled between two adjacent prism structures. Each prism structure comprises a first side and a second side, and the distance from the first side to the second side of each prism structure is gradually reduced in the direction away from the surface of the substrate. According to the present invention, light is prevented from being diffused to the unnecessary direction, and the light utilization rate is improved.
Inventors:
SUN CHENGXIAO (CN)
ZHOU MIAO (CN)
ZHOU MIAO (CN)
Application Number:
PCT/CN2021/141219
Publication Date:
June 22, 2023
Filing Date:
December 24, 2021
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
G02B5/02
Foreign References:
| CN111033323A | 2020-04-17 | |||
| CN107533180A | 2018-01-02 | |||
| CN111796349A | 2020-10-20 | |||
| JP2008003245A | 2008-01-10 |
Attorney, Agent or Firm:
PURPLEVINE INTELLECTUAL PROPERTY (SHENZHEN) CO., LTD. (CN)
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