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. 28, 2021
Filed:
May. 11, 2020
Fujifilm Corporation, Tokyo, JP;
Takahiro Ohno, Kanagawa, JP;
Makoto Ishiguro, Kanagawa, JP;
Yoshiaki Hisakado, Kanagawa, JP;
Hiroshi Sato, Kanagawa, JP;
Keita Takahashi, Kanagawa, JP;
Naozumi Shiraiwa, Kanagawa, JP;
Taiji Katsumata, Kanagawa, JP;
Hiroshi Matsuyama, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
The present invention is to provide an optical film having optically anisotropic layer having excellent durability, and a polarizing plate and an image display device using the same. An optical film of the present invention is an optical film having at least an optically anisotropic layer, in which the optically anisotropic layer is a layer obtained by polymerizing a polymerizable liquid crystal composition containing a predetermined liquid crystal compound and a polymerization initiator, and an extrapolated glass transition starting temperature of the optically anisotropic layer is 70° C. or higher.