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:
Jun. 06, 2023
Filed:
Nov. 12, 2019
Applicant:
Wuhan China Star Optoelectronics Technology Co., Ltd., Wuhan, CN;
Inventor:
Pengfei Zhang, Wuhan, CN;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); G02F 1/13357 (2006.01); G02F 1/1343 (2006.01); G02F 1/1368 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13362 (2013.01); G02F 1/133512 (2013.01); G02F 1/133531 (2021.01); G02F 1/133553 (2013.01); G02F 1/133602 (2013.01); G02F 1/134345 (2021.01); G02F 1/1368 (2013.01); G02F 2201/307 (2013.01); G02F 2201/50 (2013.01);
Abstract
A display device is provided. The display device includes a display panel and a backlight module. The display panel includes sub-pixels and a light-shielding layer disposed around the sub-pixels. A reflective nano-grating is disposed on one side of the light-shielding layer near the backlight module. The backlight module provides a backlight source for the display panel, and the backlight source is converted into a polarized light in the display panel. The reflective nano-grating is used to reflect at least one part of the polarized light emitted toward the reflective nano-grating back to the backlight module for recycling.