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. 24, 2009
Filed:
Jul. 14, 2006
Hiroki Umeda, Hino, JP;
Noriyasu Kuzuhara, Kunitachi, JP;
Hiroki Umeda, Hino, JP;
Noriyasu Kuzuhara, Kunitachi, JP;
Konica Minolta Opto, Inc., Tokyo, JP;
Abstract
A polarizing plate comprises a polarizing element; and a hydrophilic polymer film adhered on the polarizing element and having an in-plane orientation. The transmittance of the polarizing plate as a single unit for light having a wavelength of 590 nm is 40% or more under an environment of 23° C. and 55% RH, the crossed-Nichols transmittance T2 of the polarizing plate is 0.03% or less under an environment of 23° C. and 55% RH, and a change ΔT2 in the transmittance T2 of the polarizing plate when the relative humidity changes from 20% RH to 80% RH at 23° C. satisfies the following formula:0.05×T2<ΔT2<0.9×T2.