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. 11, 2023
Filed:
Nov. 01, 2022
Coretronic Corporation, Hsin-Chu, TW;
Chung-Yang Fang, Hsin-Chu, TW;
Ping-Yen Chen, Hsin-Chu, TW;
Chih-Jen Tsang, Hsin-Chu, TW;
Chung-Wei Huang, Hsin-Chu, TW;
Bo-Han Cheng, Hsin-Chu, TW;
Wen-Chun Wang, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A backlight module including a circuit substrate, a plurality of light-emitting devices, a first cholesteric liquid-crystal layer, and a second cholesteric liquid-crystal layer is provided. The light-emitting devices are disposed on the circuit substrate and electrically connected to the circuit substrate. The first cholesteric liquid-crystal layer is disposed on the light-emitting devices and overlapped with a light-emitting surface of each of the light-emitting devices. The second cholesteric liquid-crystal layer is disposed on the first cholesteric liquid-crystal layer and overlapped with the first cholesteric liquid-crystal layer. The first cholesteric liquid-crystal layer and the second cholesteric liquid-crystal layer respectively have a first chiral direction and a second chiral direction. A display apparatus adopting the backlight module is also provided.