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:
Jan. 21, 2020
Filed:
Jan. 12, 2016
Applicant:
Dic Corporation, Tokyo, JP;
Inventors:
Toru Ishii, Kita-adachi-gun, JP;
Yoshiyuki Ono, Kita-adachi-gun, JP;
Assignee:
DIC CORPORATION, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/38 (2006.01); G02B 1/08 (2006.01); C09K 19/54 (2006.01); C08F 222/10 (2006.01); C08F 220/38 (2006.01); G02B 5/30 (2006.01); H01L 51/00 (2006.01); H01L 51/52 (2006.01);
U.S. Cl.
CPC ...
G02B 1/08 (2013.01); C08F 220/38 (2013.01); C08F 222/10 (2013.01); C09K 19/38 (2013.01); C09K 19/3852 (2013.01); C09K 19/3861 (2013.01); C09K 19/54 (2013.01); G02B 5/3016 (2013.01); H01L 51/004 (2013.01); H01L 51/0043 (2013.01); H01L 51/5281 (2013.01);
Abstract
A retardation plate is formed by laminating at least two retardation plates of a retardation plate 1 and a retardation plate 2, in which at least one of the retardation plate 1 and the retardation plate 2 is formed of a polymer of a polymerizable liquid crystal composition. It is possible to provide a retardation plate imparting a phase difference of ¼ wavelength over a wide wavelength region, a circularly polarizing plate having excellent anti-reflection performance over a wide wavelength region, and a display element or a light-emitting element having excellent visibility.