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:
May. 26, 2020
Filed:
May. 09, 2019
Coretronic Corporation, Hsin-Chu, TW;
Ping-Yen Chen, Hsin-Chu, TW;
Wen-Chun Wang, Hsin-Chu, TW;
Chung-Yang Fang, Hsin-Chu, TW;
Yang-Ching Lin, Hsin-Chu, TW;
Jen-Wei Yu, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A viewing angle switchable display module includes an organic light-emitting display (OLED) panel, a viewing angle switchable device disposed on the OLED panel, and a quarter wave plate disposed between the OLED panel and the viewing angle switchable device. The viewing angle switchable device includes an absorptive polarizer, a reflective polarizer, and an electrically controlled viewing angle switching element. A transmission axis of the reflective polarizer is parallel to a transmission axis of the absorptive polarizer. The electrically controlled viewing angle switching element is disposed between the absorptive polarizer and the reflective polarizer and includes two conductive layers and a liquid crystal layer including liquid crystal molecules. When there is a potential difference between the two conductive layers, an orthogonal projection of an optical axis of each of the liquid crystal molecules on the absorptive polarizer is parallel to or perpendicular to the transmission axis of the absorptive polarizer.