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:
Sep. 13, 2022
Filed:
May. 29, 2020
Applicant:
Tcl China Star Optoelectronics Technology Co., Ltd, Guangdong, CN;
Assignee:
TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Guangdong, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 1/04 (2006.01); G02F 1/03 (2006.01); G02F 1/1333 (2006.01); G02F 1/1337 (2006.01); G02F 1/00 (2006.01); G02B 1/10 (2015.01);
U.S. Cl.
CPC ...
G02B 1/04 (2013.01); G02B 1/10 (2013.01); G02F 1/0045 (2013.01); G02F 1/0316 (2013.01); G02F 1/133302 (2021.01); G02F 1/133374 (2021.01); G02F 1/133711 (2013.01); G02F 2201/12 (2013.01); G02F 2201/44 (2013.01); G02F 2202/023 (2013.01); G02F 2202/16 (2013.01);
Abstract
An optical film can be used in a display panel as a viewing angle diffusion film. The optical film includes a first electrode layer, an isotropic optical material layer, a liquid crystal material layer and a second electrode layer that are stacked. A plurality of groove structures are disposed on the isotropic optical material layer, and each of the groove structures is filled with the liquid crystal material layer.