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:
Feb. 11, 2014
Filed:
Feb. 18, 2011
Yujiro Yanai, Kanagawa, JP;
Hiroaki Sata, Kanagawa, JP;
Hajime Nakayama, Kanagawa, JP;
Yasuyuki Sasada, Kanagawa, JP;
Yujiro Yanai, Kanagawa, JP;
Hiroaki Sata, Kanagawa, JP;
Hajime Nakayama, Kanagawa, JP;
Yasuyuki Sasada, Kanagawa, JP;
Fujifilm Corporation, Tokyo, JP;
Abstract
There is provided an optical film having a small size change with a temperature change of a support of a pattern retardation film. An optical film includes: a support comprising a polymer having a moisture absorptivity of 0.5% or more; a first retardation region and a second retardation region, in which birefringence thereof is mutually different; and an optically anisotropic layer in which the first retardation region and the second retardation region are alternately patterned for every one line.