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:
Dec. 14, 2010
Filed:
Nov. 16, 2005
Tsuyoshi Chiba, Ibaraki, JP;
Ikuo Kawamoto, Ibaraki, JP;
Satoru Kawahara, Ibaraki, JP;
Masahiro Hata, Ibaraki, JP;
Nobuyuki Kozonoi, Ibaraki, JP;
Shunsuke Shuto, Ibaraki, JP;
Tsuyoshi Chiba, Ibaraki, JP;
Ikuo Kawamoto, Ibaraki, JP;
Satoru Kawahara, Ibaraki, JP;
Masahiro Hata, Ibaraki, JP;
Nobuyuki Kozonoi, Ibaraki, JP;
Shunsuke Shuto, Ibaraki, JP;
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Abstract
An optical compensation layer-attached polarizing plate including a polarizing plate, an optical compensation layer and another optical compensation layer that are laminated in this order, wherein the optical compensation layer has the relation nx>ny=nz, including a resin with a photoelastic coefficient absolute value of at most 2.0×10m/N, and has an in-plane retardation (nx−ny)din the range of 200 nm to 300 nm, the optical compensation layer has the relation nx>ny>nz, including a resin with a photoelastic coefficient absolute value of at most 2.0×10m/N, and has an in-plane retardation (nx−ny)din the range of 90 nm to 160 nm, a slow axis of the optical compensation layer makes an angle of 10° to 30° with an absorption axis of the polarizing plate, and a slow axis of the optical compensation layer makes an angle of 75° to 95° with the absorption axis of the polarizing plate.