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:
Jul. 14, 2020
Filed:
Jan. 28, 2016
Zeon Corporation, Chiyoda-ku, Tokyo, JP;
Hitoshi Ooishi, Tokyo, JP;
Hiroaki Shu, Tokyo, JP;
ZEON CORPORATION, Chiyoda-ku, Tokyo, JP;
Abstract
A multilayer film including: a first long-length substrate; and an optically anisotropic layer containing cured liquid crystal molecules, the optically anisotropic layer being directly disposed on a surface of the first substrate, wherein the surface of the first substrate has a surface tension of 35 to 45 mN/m and an orientation-regulation force generated by stretching, and the optically anisotropic layer has a slow axis along approximately the same direction as an orientation direction of the first substrate by the stretching; and an optical compensation sheet, a λ/4 wave plate, a polarizing plate, a circularly polarizing plate, a liquid crystal display device, and an organic electroluminescent display device having the optically anisotropic layer, as well as production methods thereof.