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. 01, 2022
Filed:
Jan. 29, 2018
Beijing Boe Optoelectronics Technology Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Yinwei Chen, Beijing, CN;
Xuerong Wang, Beijing, CN;
Yali Liu, Beijing, CN;
Haiwei Sun, Beijing, CN;
Fei Gao, Beijing, CN;
BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A peep-proof device, a display device and a method for driving the display device are provided. The peep-proof device includes at least one light beam adjustment layer. The light beam adjustment layer includes: a transparent base layer and a plurality of grooves formed in a surface of the transparent base layer; and a liquid crystal layer arranged within the plurality of grooves. A refractive index of the transparent base layer is same as a refractive index of the liquid crystal layer to ordinary light beam.