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:
Jul. 14, 2020
Filed:
Jul. 11, 2017
Applicant:
Boe Technology Group Co., Ltd., Beijing, CN;
Inventors:
Guobing Yin, Beijing, CN;
Jiyang Shao, Beijing, CN;
Min Peng, Beijing, CN;
Xingdong Liu, Beijing, CN;
Yuting Zhang, Beijing, CN;
Assignee:
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 30/27 (2020.01); G02F 1/13 (2006.01); G02F 1/137 (2006.01);
U.S. Cl.
CPC ...
G02B 30/27 (2020.01); G02F 1/137 (2013.01); G02F 1/1313 (2013.01); G02F 2201/30 (2013.01);
Abstract
Embodiments of the present disclosure provide an optical grating and a 3D display device having the same. The optical grating comprises a plurality of grating units arranged from a center of the optical grating towards two sides thereof, values of grating periods of a plurality of said grating units on either side of the center being non-linearly decreased progressively from the center to the side.