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.
Patent No.:
Date of Patent:
Feb. 16, 2021
Filed:
May. 25, 2018
Applicant:
Boe Technology Group Co., Ltd., Beijing, CN;
Inventors:
Zezhou Yang, Beijing, CN;
Ming Zhu, Beijing, CN;
Assignee:
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02F 1/13357 (2006.01); G02B 5/04 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133553 (2013.01); G02B 5/045 (2013.01); G02F 1/133615 (2013.01);
Abstract
The present disclosure provides an optical element used in a reflection-type liquid crystal display system. The optical element includes a substrate, and a plurality of prisms formed on a surface of the substrate and sequentially arranged along a first direction. Each of the plurality of prisms includes a plurality of sub-prisms sequentially arranged along the first direction with refractive indexes sequentially decreased.