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:
Oct. 05, 2021
Filed:
Sep. 29, 2015
Nitto Denko Corporation, Ibaraki, JP;
Satoshi Mita, Osaka, JP;
Tomonori Ueno, Osaka, JP;
Jingfan Xu, Osaka, JP;
Yusuke Motegi, Osaka, JP;
Atsushi Kishi, Osaka, JP;
NITTO DENKO CORPORATION, Ibaraki, JP;
Abstract
The present invention pertains to a one-side-protected polarizing film having a protective film or films on only one surface of a polarizer, wherein: the polarizer contains a polyvinyl alcohol-based resin, and is designed to have a single-body transmittance T and a polarization degree P representing optical properties satisfying the condition of the following formula: P>−(10−1)×100 (provided that T<42.3) or P≥99.9 (provided that T≥42.3), and the polarizer and a transparent resin layer have a thickness X (μm) and a thickness Y (μm), respectively, satisfying X≤12, Y≤15, and 0.15≤(Y/X)≤3. Even when the thin-type polarizer has prescribed optical properties, this one-side-protected polarizing film is capable of suppressing the occurrence of through cracks, nano-slit-induced defects and curling.