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.

Date of Patent:
Apr. 28, 2026

Filed:

Mar. 23, 2022
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Toshikazu Sumi, Kanagawa, JP;

Tatsuya Iwasaki, Kanagawa, JP;

Shunya Katoh, Kanagawa, JP;

Hiroshi Inada, Kanagawa, JP;

Aiko Yamamoto, Kanagawa, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1333 (2006.01); C09K 19/04 (2006.01); C09K 19/12 (2006.01); C09K 19/20 (2006.01); C09K 19/30 (2006.01); C09K 19/54 (2006.01); G02F 1/1335 (2006.01); G02F 1/1337 (2006.01); G02F 1/137 (2006.01); H10K 59/50 (2023.01); H10K 59/80 (2023.01);
U.S. Cl.
CPC ...
C09K 19/542 (2013.01); C09K 19/0403 (2013.01); C09K 19/12 (2013.01); C09K 19/2007 (2013.01); C09K 19/3003 (2013.01); C09K 19/3068 (2013.01); G02F 1/133528 (2013.01); G02F 1/133711 (2013.01); G02F 1/133788 (2013.01); G02F 1/13706 (2021.01); C09K 2019/0414 (2013.01); C09K 2019/122 (2013.01); C09K 2019/3004 (2013.01); C09K 2019/3075 (2013.01); C09K 2019/3077 (2013.01); C09K 2019/3083 (2013.01); H10K 59/50 (2023.02); H10K 59/8791 (2023.02);
Abstract

An optical film, a polarizing plate, and an image display device, each having an optically anisotropic layer obtained by curing a polymerizable liquid crystal composition including a polymerizable liquid crystal compound (LCC) having forward wavelength dispersion and a monofunctional compound, and immobilizing an alignment state of the polymerizable LCC. The number aof atoms of the polymerizable LCC and the number aof atoms of the monofunctional compound satisfy a relationship of Expression (1): 0.2<a/a<0.55; the number bof the rings Bcontained in the polymerizable LCC and the total number bof the aromatic rings Ar and the rings Bcontained in the monofunctional compound satisfy a relationship of Expression (2): b=b×0.5 or b=(b+1)×0.5.


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