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. 28, 2022
Filed:
Aug. 12, 2020
Fujifilm Corporation, Tokyo, JP;
Ayako Muramatsu, Kanagawa, JP;
Ryo Satake, Kanagawa, JP;
Mayumi Nojiri, Kanagawa, JP;
Aiko Yoshida, Kanagawa, JP;
Keita Takahashi, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
Provided are an optically anisotropic film which has excellent moisture-heat resistance and can have a reduction in the thickness, an optical film, a polarizing plate, and an image display device. The optically anisotropic film is obtained by polymerizing a polymerizable liquid crystal composition, in which the polymerizable liquid crystal composition contains a polymerizable liquid crystal compound represented by Formula (1): L-SP-(E-A)-E-G-D-Ar-D-G-E-(A-E)-SP-Land a polymerizable liquid crystal compound represented by Formula (2): L-SP-(E-A)-E-G-D-Ar-D-G-E-(A-E)-SP-L, and the optically anisotropic film satisfies Formula (3): Re(450)/Re(550)<1 or Formula (4): Rth(450)/Rth(550)<1, and has a degree of alignment as measured by Raman spectroscopy of 0.4 or more.