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. 11, 2018
Filed:
Feb. 15, 2017
Applicant:
Fujifilm Corporation, Tokyo, JP;
Inventor:
Kotaro Yasuda, Kanagawa, JP;
Assignee:
FUJIFILM Corporation, Tokyo, JP;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/133 (2006.01); G02B 5/30 (2006.01); G02B 5/26 (2006.01); G02F 1/1335 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3066 (2013.01); G02B 5/26 (2013.01); G02B 5/3083 (2013.01); G02F 1/133528 (2013.01); G02F 1/133536 (2013.01); G02F 1/133634 (2013.01); G02F 1/13362 (2013.01); G02F 1/133606 (2013.01); G02F 2001/133541 (2013.01); G02F 2413/11 (2013.01); G02F 2413/13 (2013.01);
Abstract
An optical film having a positive C-plate sandwiched by circular polarization reflection layers with different center wavelength of reflection band, wherein the circular polarization reflection layer closest to a light exit side of the optical film does not have the shortest center wavelength of reflection band among the circular polarization reflection layers, can suppress an oblique tint change when the optical film is incorporated into a liquid crystal display device.