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:
Sep. 01, 2009
Filed:
Aug. 16, 2006
Yoichi Maruyama, Minami-Ashigara, JP;
Yukito Saitoh, Minami-Ashigara, JP;
Yoshiaki Hisakado, Minami-Ashigara, JP;
Susumu Sugiyama, Minami-Ashigara, JP;
Yoichi Maruyama, Minami-Ashigara, JP;
Yukito Saitoh, Minami-Ashigara, JP;
Yoshiaki Hisakado, Minami-Ashigara, JP;
Susumu Sugiyama, Minami-Ashigara, JP;
Fujifilm Corporation, Minato-Ku, Tokyo, JP;
Abstract
An optical resin film, which has Re (λ) and Rth (λ) satisfying retardation requirements (A) to (D), and has an in-plane width direction retardation (Re) variation coefficient of 5% or less and a thickness direction retardation (Rth) variation coefficient of 10% or less: (A) 0.1<Re (450)/Re (550)<0.95 (B) 1.03<Re (650)/Re (550)<1.93 (C) 0.4<(Re/Rth (450))/(Re/Rth (550)))<0.95 (D) 1.05<(Re/Rth (650)/(Re/Rth (550))<1.9, and a polarizing plate and a liquid crystal display device using the optical resin film.