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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.:

US 12503450 B1

PDFFull Text
Date of Patent:
Dec. 23, 2025

Filed:

Mar. 22, 2022

Composition, optically anisotropic film, optical film, circularly polarizing plate, and organic electroluminescent display device

Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventors:

Ryoji Goto, Kanagawa, JP;

Ryoji Himeno, Kanagawa, JP;

Assignee:

FUJIFILM Corporation, Tokyo, JP;

Attorneys:

Edwards Neils LLC

Jean C. Edwards, Esq.

Primary Examiner:

Vu A Nguyen

Int. Cl.
CPC ...
C07D 251/24 (2006.01); C08L 79/08 (2006.01); C08L 101/12 (2006.01); G02B 5/30 (2006.01); H10K 59/80 (2023.01); H10K 85/60 (2023.01);
U.S. Cl.
CPC ...
C07D 251/24 (2013.01); C08L 79/08 (2013.01); C08L 101/12 (2013.01); G02B 5/30 (2013.01); H10K 85/654 (2023.02); H10K 59/8791 (2023.02);
Abstract

Provided is a composition with which an optically anisotropic film exhibits reverse wavelength dispersibility and shows nx>nz>ny can be formed, an optically anisotropic film, an optical film, a circularly polarizing plate, and an organic EL display device. The composition includes a compound represented by Formula (1); and a rod-like compound, in which the compound represented by Formula (1) has a maximal absorption wavelength in a wavelength range of 300 nm or less, and the rod-like compound has a maximal absorption wavelength in a wavelength range of 330 nm or more.

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Goto, Ryoji. (2025). Composition, optically anisotropic film, optical film, circularly polarizing plate, and organic electroluminescent display device (U.S. Patent No. 12503450). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12503450

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