The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 03, 2023

Filed:

Dec. 17, 2019
Applicants:

Fuzhou Boe Optoelectronics Technology Co., Ltd., Fujian, CN;

Boe Technology Group Co., Ltd., Beijing, CN;

Inventors:

Wenchang Tao, Beijing, CN;

Zongxiang Li, Beijing, CN;

Linlin Lin, Beijing, CN;

Xinmao Qiu, Beijing, CN;

Zuwen Liu, Beijing, CN;

Jin Wang, Beijing, CN;

Changhong Shi, Beijing, CN;

Yaochao Lv, Beijing, CN;

Jiamin Liao, Beijing, CN;

Yao Liu, Beijing, CN;

Xi Chen, Beijing, CN;

Min Zhou, Beijing, CN;

Guichun Hong, Beijing, CN;

Zhendian Wu, Beijing, CN;

Hao Cheng, Beijing, CN;

Yawen Huang, Beijing, CN;

Zihua Zhuang, Beijing, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 30/31 (2020.01); H04N 13/31 (2018.01); G02F 1/1677 (2019.01); G02F 1/133 (2006.01); G02F 1/1335 (2006.01); G02F 1/1343 (2006.01); G02F 1/167 (2019.01); H10K 59/50 (2023.01);
U.S. Cl.
CPC ...
G02B 30/31 (2020.01); G02F 1/13306 (2013.01); G02F 1/13439 (2013.01); G02F 1/133553 (2013.01); G02F 1/167 (2013.01); G02F 1/1677 (2019.01); H04N 13/31 (2018.05); H10K 59/50 (2023.02);
Abstract

The grating substrate includes a first base substrate and a plurality of grating units on the first base substrate. The grating unit includes two control layers, a barrier structure between the two control layers, and a plurality of movable particles in a closed cavity surrounded by the barrier structure and the two control layers. The two control layers include a first control layer and a second control layer. The first control layer is located on a side of the second control layer distal from the first base substrate, and the two control layers are configured to control movement of the plurality of particles. The particles satisfy at least one of the following conditions: the particles have a refractive index smaller than a refractive index of the first control layer, or the particles are non-transparent particles.


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