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:
Dec. 10, 2019
Filed:
Jan. 03, 2018
Applicant:
Toyobo Co., Ltd., Osaka-shi, Osaka, JP;
Inventors:
Koichi Murata, Tsuruga, JP;
Yasushi Sasaki, Tsuruga, JP;
Assignee:
TOYOBO CO., LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13363 (2006.01); G02F 1/1335 (2006.01); G02B 5/30 (2006.01); G02F 1/13357 (2006.01); G02B 1/10 (2015.01);
U.S. Cl.
CPC ...
G02F 1/13363 (2013.01); G02B 5/3083 (2013.01); G02F 1/1336 (2013.01); G02F 1/13362 (2013.01); G02F 1/133528 (2013.01); G02B 1/105 (2013.01); G02B 5/3033 (2013.01); G02F 2001/133562 (2013.01); G02F 2001/133567 (2013.01); G02F 2001/133624 (2013.01); G02F 2201/50 (2013.01); G02F 2202/40 (2013.01);
Abstract
Provided is a liquid crystal display device that has excellent visibility while using a protective film comprising a polyester film. The liquid crystal display device comprises a backlight light source, and a liquid crystal cell disposed between two polarizers; the backlight light source being a white light-emitting diode; each of the polarizers comprising a polarizing film and protective films laminated on both sides of the polarizing film; and at least one of the protective films being a polyester film having a retardation of 3,000 to 30,000 nm.