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:
Mar. 26, 2019
Coretronic Corporation, Hsin-Chu, TW;
Ping-Yen Chen, Hsin-Chu, TW;
Chung-Yang Fang, Hsin-Chu, TW;
Yang-Ching Lin, Hsin-Chu, TW;
Jen-Wei Yu, Hsin-Chu, TW;
Yu-Fan Chen, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
An anti-peeping control device includes two polarizers and a liquid crystal box disposed between the two polarizers. An included angle of 5 to 15 degrees is formed between the axial directions of the transmission axes of the two polarizers, or the axial directions of the transmission axes of the two polarizers are parallel to each other but not parallel and not perpendicular to any side edge of the polarizer. The axial directions of the transmission axes of the two polarizers are perpendicular or parallel to the alignment direction of the alignment layer of the liquid crystal box. The anti-peeping control device can use an electronic control method to switch the anti-peeping effect. A backlight module and display using the anti-peeping control device are also proposed.