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:
Mar. 29, 2011
Filed:
Sep. 22, 2008
Shun Nakamura, Minami-Ashigara, JP;
Masayoshi Toyoda, Minami-Ashigara, JP;
Shun Nakamura, Minami-Ashigara, JP;
Masayoshi Toyoda, Minami-Ashigara, JP;
Fujifilm Corporation, Minato-Ku, Tokyo, JP;
Abstract
A laminated optical film including a first optical anisotropic layer, and a second optical anisotropic layer, wherein Rth1 of the first optical anisotropic layer, and Rth2 of the second optical anisotropic layer satisfy one of Relationships (1) and (2), andΔRth1≧0 nm and ΔRth2≦0 nm   (1)ΔRth1<0 nm and ΔRth2>0 nm   (2)wherein a retardation value Rth of the laminated optical film as a whole in its thickness direction satisfies 50 nm≦Rth≦500 nm, where ΔRth1 denotes a value obtained by calculating the expression Rth1 (at a temperature of 50° C.)−Rth1 (at a temperature of 25° C.) concerning the first optical anisotropic layer, and ΔRth2 denotes a value obtained by calculating the expression Rth2 (at a temperature of 50° C.)−Rth2 (at a temperature of 25° C.) concerning the second optical anisotropic layer.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile