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. 02, 2025
Filed:
Sep. 26, 2022
Fujifilm Corporation, Tokyo, JP;
Shinpei Yoshida, Kanagawa, JP;
Yuta Takahashi, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
Provided are a circularly polarizing plate in which the black tint variation is suppressed in a case where a display device obtained by attaching the circularly polarizing plate to a display element is displayed in black and is then viewed from the front direction in a sunlight environment, and a display device. The circularly polarizing plate is has a polarizer, a first optically anisotropic layer, and a second optically anisotropic layer in this order, in which the first optically anisotropic layer is a layer formed by fixing a liquid crystal compound twist-aligned along a helical axis extending in a thickness direction, the second optically anisotropic layer is an A-plate, an absorption axis of the polarizer and an in-plane slow axis of the second optically anisotropic layer are parallel or orthogonal to each other, and the first optically anisotropic layer and the second optically anisotropic layer exhibit predetermined optical properties.