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:
Aug. 28, 2018
Filed:
Jun. 20, 2016
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Tomohiro Yamashita, Ibaraki, JP;
Mie Nakata, Ibaraki, JP;
Shunsuke Murayama, Ibaraki, JP;
Makiko Kimura, Ibaraki, JP;
NITTO DENKO CORPORATION, Ibaraki-shi, JP;
Abstract
It is an object of the present invention to provide a polarizing plate which has high productivity and can suppress water-induced unevenness, and a method for producing the same. A polarizing plate includes: a retardation film provided on one surface of a polarizer with an adhesive layer interposed therebetween; and a protective film provided on the other surface of the polarizer with an adhesive layer interposed therebetween. The retardation film contains a cellulose resin. After the polarizing plate is immersed in water at 23° C. for 24 hours in a state where the polarizing plate is bonded to a glass plate, and taken out from the water, the polarizing plate has a dimensional change rate of 0.1% or less after 1 minute under an atmosphere of a temperature of 23° C. and humidity of 55%.