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:
May. 20, 2025
Filed:
May. 09, 2022
Sumitomo Chemical Company, Limited, Tokyo, JP;
SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo, JP;
Abstract
An optically anisotropic film capable of effectively reducing a difference in hue between a front hue and an oblique hue during white display of an organic EL display device and which exhibits excellent image display properties, and a laminate including the optically anisotropic film are provided. The optically anisotropic film is a cured film of a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound and at least two dichroic dyes, in which the polymerizable liquid crystal compound and the at least two dichroic dyes are cured in a state of being molecularly oriented in a vertical direction with respect to a film plane, and satisfy specific relationships between absorbance of linearly polarized light that oscillates in an x-axis direction and absorbance of linearly polarized light that oscillates in the x-axis direction when the optically anisotropic film is rotated by 500 with the y-axis as a rotation axis.