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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.:

US 10241236 B1

PDFFull Text
Date of Patent:
Mar. 26, 2019

Filed:

Oct. 11, 2016

Polarizing plate

Applicant:

Nitto Denko Corporation, Ibaraki-shi, Osaka, JP;

Inventors:

Katsunori Takada, Ibaraki, JP;

Naotaka Higuchi, Ibaraki, JP;

Kota Nakai, Ibaraki, JP;

Shinobu Nagano, Ibaraki, JP;

Eiko Suefusa, Ibaraki, JP;

Yoshitsugu Kitamura, Ibaraki, JP;

Keisuke Kimura, Ibaraki, JP;

Assignee:

NITTO DENKO CORPORATION, Ibaraki-shi, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Jeffrey A Vonch

Int. Cl.
CPC ...
G02B 1/14 (2015.01); G02B 5/30 (2006.01); B32B 27/16 (2006.01); B32B 3/02 (2006.01); B32B 38/00 (2006.01); B32B 3/26 (2006.01); G02F 1/1335 (2006.01); B32B 3/24 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); B32B 27/30 (2006.01); B32B 38/04 (2006.01);
U.S. Cl.
CPC ...
G02B 1/14 (2015.01); B32B 3/02 (2013.01); B32B 3/266 (2013.01); B32B 38/0036 (2013.01); G02B 5/3033 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 27/16 (2013.01); B32B 27/306 (2013.01); B32B 38/0004 (2013.01); B32B 2038/0028 (2013.01); B32B 2038/042 (2013.01); B32B 2038/047 (2013.01); B32B 2307/42 (2013.01); B32B 2307/518 (2013.01); B32B 2307/734 (2013.01); B32B 2329/04 (2013.01); B32B 2551/00 (2013.01); G02B 5/305 (2013.01); Y10S 428/91 (2013.01); Y10T 428/24273 (2015.01); Y10T 428/24322 (2015.01); Y10T 428/24777 (2015.01);
Abstract

A primary object of the present invention is to provide a polarizing plate excellent in durability. A polarizing plate () according to an embodiment of the present invention includes: a polarizer (); and a protective film (and) arranged on at least one side of the polarizer (). The polarizing plate () has a dimensional change ratio of −0.2% or more in a transmission axis direction thereof when the polarizing plate () cut into a size measuring 100 mm by 100 mm is bonded to a glass plate with a pressure-sensitive adhesive and the following operation is repeated 100 times: the polarizing plate () bonded to the glass plate is left to stand under an atmosphere at −40° C. for 30 minutes and then left to stand under an atmosphere at 85° C. for 30 minutes.

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