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:
Apr. 14, 2020
Filed:
May. 22, 2018
Applicant:
Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;
Inventors:
Assignee:
NITTO DENKO CORPORATION, Ibaraki-shi, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 1/08 (2006.01);
U.S. Cl.
CPC ...
G02B 5/305 (2013.01); G02B 1/08 (2013.01); G02B 5/3033 (2013.01);
Abstract
An iodine-based polarizer includes a polyvinyl alcohol-based film; and iodine adsorbed and oriented in the polyvinyl alcohol-based film, the iodine-based polarizer having be undergone a treatment with a treatment bath containing at least one reducing agent, the iodine-based polarizer containing an oxidized form of the reducing agent, wherein the total content of the reducing agent and the oxidized form is from 0.06×10mol/g to 1.6×10mol/g. The iodine-based polarizer has a sufficiently high level of transmittance, degree of polarization, and other optical properties and can suppress light leakage in short-wavelength.