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:
May. 22, 2001
Filed:
Apr. 20, 1999
Yuji Saiki, Osaka, JP;
Minoru Miyatake, Osaka, JP;
Takafumi Sakuramoto, Osaka, JP;
Hiroyuki Yoshimi, Osaka, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
A wide viewing angle polarizing plate has a laminate of a birefringent film having an in-plane average phase difference of from 50 nm to 200 nm made of a transparent resin film having microscopic regions dispersed therein and a polarizing plate. The birefringent film comprises a transparent resin film having microscopic regions dispersed therein and satisfies the relationships &Dgr;n,≦0.03 and &Dgr;n,>&Dgr;n,supposing that the direction of the axis along which linearly polarized light exhibits the maximum transmission is &Dgr;n,direction, the difference in refractive index between microscopic regions in &Dgr;n,direction and other portions is &Dgr;n,, the direction perpendicular to &Dgr;n,direction is &Dgr;n,direction and the difference in refractive index between microscopic regions in &Dgr;n,direction and other portions is &Dgr;n,, and &Dgr;n,direction and the retardation axis of said birefringent film and the transmission axis of said polarizing plate are parallel to each other and a liquid crystal display comprising same.