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. 31, 2018
Filed:
Jan. 29, 2014
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Kentarou Takeda, Ibaraki, JP;
Hironori Yaginuma, Ibaraki, JP;
Hiroshi Sumimura, Ibaraki, JP;
Nao Murakami, Ibaraki, JP;
NITTO DENKO CORPORATION, Ibaraki-shi, Osaka, JP;
Abstract
There is provided a circularly polarizing plate capable of realizing a bendable display apparatus in which an excellent reflection hue is obtained and a color change due to bending is suppressed. A circularly polarizing plate according to the present invention is used in a bendable display apparatus. The circularly polarizing plate includes: a polarizer; and a retardation film arranged on one side of the polarizer. In-plane retardations of the retardation film satisfy a relationship of Re(450)<Re(550)<Re(650), and a slow axis direction of the retardation film is adjusted so as to form an angle of from 20° to 70° with respect to a bending direction of the display apparatus.