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:
Feb. 17, 2026

Filed:

Sep. 21, 2022
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Shinichi Morishima, Kanagawa, JP;

Yuki Hirai, Kanagawa, JP;

Ryoji Himeno, Kanagawa, JP;

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); C08J 5/18 (2006.01); C08L 101/12 (2006.01); C09K 19/38 (2006.01); H10K 59/80 (2023.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); C08L 101/12 (2013.01); C09K 19/38 (2013.01); G02B 5/30 (2013.01); C08J 2300/12 (2013.01); H10K 59/8791 (2023.02);
Abstract

Provided is a composition capable of forming an optically anisotropic film exhibiting reverse wavelength dispersibility and an Nz factor of about 0.50 (0.40 to 0.60); as well as an optically anisotropic, a circularly polarizing plate, and a display device. The composition includes a non-colorable rod-like compound having an acid group or a salt thereof, a non-colorable plate-like compound having an acid group or a salt thereof, and a salt consisting of a cation and an anion, and exhibiting lyotropic liquid crystallinity, in which a ratio W obtained by Expression (W) is 0.25 to 1.75, and a maximum absorption wavelength in a wavelength range of 230 to 400 nm of the rod-like compound is smaller than a maximum absorption wavelength in a wavelength range of 230 to 400 nm of the plate-like compound.


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