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. 23, 2020
Filed:
Dec. 27, 2016
Applicant:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Inventors:
Assignee:
Sumitomo Chemical Company, Limited, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/22 (2006.01); C09J 133/08 (2006.01); G02B 5/30 (2006.01); C08F 2/50 (2006.01); C08F 222/32 (2006.01); C08K 5/3417 (2006.01); C08K 5/3415 (2006.01); C08F 220/30 (2006.01); C08F 220/28 (2006.01);
U.S. Cl.
CPC ...
G02B 5/223 (2013.01); C08F 2/50 (2013.01); C08F 222/32 (2013.01); C09J 133/08 (2013.01); G02B 5/305 (2013.01); G02B 5/3016 (2013.01); B32B 2457/20 (2013.01); B32B 2457/202 (2013.01); B32B 2457/206 (2013.01); C08F 2220/281 (2013.01); C08F 2220/282 (2013.01); C08F 2220/283 (2013.01); C08F 2220/301 (2013.01); C08F 2220/302 (2013.01); C08F 2220/303 (2013.01); C08F 2222/328 (2013.01); C08K 5/3415 (2013.01); C08K 5/3417 (2013.01); C09J 2203/318 (2013.01); Y10T 428/1059 (2015.01); Y10T 428/1077 (2015.01); Y10T 428/1082 (2015.01);
Abstract
Provided is an optical laminate which has high absorption selectivity to short-wavelength visible light having wavelengths around 400 nm and hence high light fastness and can impart better display characteristics when used for a display device. The optical laminate comprises at least one polarizing plate and at least one pressure-sensitive adhesive layer and satisfying the following formulae (1) and (2):(400)≥0.5  (1)(420)/(400)≤0.3  (2)