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. 05, 2023
Filed:
Feb. 14, 2022
Fujifilm Corporation, Tokyo, JP;
Keisuke Kodama, Kanagawa, JP;
Yuki Fukushima, Kanagawa, JP;
Shunya Katoh, Kanagawa, JP;
Yuta Takahashi, Kanagawa, JP;
Shinpei Yoshida, Kanagawa, JP;
Satoshi Yanokuchi, Kanagawa, JP;
Akira Maruyama, Kanagawa, JP;
Hiroyuki Hagio, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
Provided is a liquid crystal composition capable of forming an optically anisotropic layer, and method thereof, in which a variation in a twisted angle of liquid crystal compound in an in-plane direction is suppressed an optical film, and a circularly polarizing plate for an organic EL display. The liquid crystal composition contains a liquid crystal, optically active compound A which is a photosensitive optically active compound whose helical twisting power changes upon irradiation with light and has a molar absorption coefficient of 5,000 M·cmor more with respect to light having a wavelength of 365 nm, and an optically active compound B having a molar absorption coefficient with respect to light having a wavelength of 365 nm smaller than the molar absorption coefficient of the optically active compound A, in which a mass content ratio of the optically active compound A to the liquid crystal compound is less than 0.01.