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:
Oct. 29, 2019
Filed:
Feb. 14, 2017
Fujifilm Corporation, Tokyo, JP;
Akira Maruyama, Kanagawa, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
The present invention provides an optical laminate in which cissing occurring when an optically anisotropic layer is formed and film thickness unevenness are suppressed, and a polarizing plate and an organic EL display device using the same. The optical laminate includes an optically anisotropic layer A, and an optically anisotropic layer B, where layer A and layer B come into direct contact, either or both of layer A and layer B are formed of a composition containing a liquid crystal compound, surface energy A of a surface of layer A on a side in contact with layer B is 30 to 40 mN/m, surface energy B1 of a surface of layer B on a side in contact with layer A is 35 mN/m or more, and surface energy B2 of a surface of layer B opposite to the side in contact with layer A is 25 mN/m or less.