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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 10310333 B1

PDFFull Text
Date of Patent:
Jun. 04, 2019

Filed:

Jun. 14, 2016

Double-sided pressure-sensitive-adhesive-layer-attached polarizing film, and image display device

Applicant:

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

Inventors:

Atsushi Yasui, Ibaraki, JP;

Shou Takarada, Ibaraki, JP;

Shinya Yamamoto, Tokyo, JP;

Ryohei Sawazaki, Ibaraki, JP;

Assignee:

NITTO DENKO CORPORATION, Ibaraki-shi, JP;

Attorney:

Westerman, Hattori, Daniels & Adrian, LLP

Primary Examiner:

Adam R Giesy

Int. Cl.
CPC ...
G06F 3/041 (2006.01); G02F 1/1337 (2006.01); B32B 27/00 (2006.01); B32B 27/30 (2006.01); C09J 133/06 (2006.01); G02F 1/1333 (2006.01); G02F 1/1335 (2006.01); G02B 5/30 (2006.01); H01L 51/52 (2006.01); C09J 133/08 (2006.01); C09J 7/38 (2018.01); C09J 7/22 (2018.01); G02B 1/16 (2015.01);
U.S. Cl.
CPC ...
G02F 1/133711 (2013.01); B32B 27/00 (2013.01); B32B 27/30 (2013.01); C09J 7/22 (2018.01); C09J 7/385 (2018.01); C09J 133/06 (2013.01); C09J 133/08 (2013.01); G02B 1/16 (2015.01); G02B 5/3016 (2013.01); G02B 5/3033 (2013.01); G02F 1/1333 (2013.01); G02F 1/1335 (2013.01); G02F 1/13338 (2013.01); G02F 1/133528 (2013.01); H01L 51/5281 (2013.01); C09J 2201/128 (2013.01); C09J 2203/318 (2013.01); C09J 2433/00 (2013.01);
Abstract

A double-sided pressure-sensitive adhesive-layer-attached polarizing film has a polarizing film nearest to a viewer-side of an image display device among at least one polarizing film, a pressure-sensitive adhesive layer A located on the viewer-side, and a pressure-sensitive adhesive layer B on a side of the polarizing film that is opposite to the pressure-sensitive adhesive layer A. The pressure-sensitive adhesive layers A and B are equipped with separators SA and SB, respectively. The polarizing film is a single-side protected polarizing film having a polarizer of 15 μm or less thickness and having a transparent protective film on only a single side of the polarizer. The pressure-sensitive adhesive layer B is located on the polarizer side of the single-side protected polarizing film. The pressure-sensitive adhesive layer A has a thickness of 25 μm or more; and the pressure-sensitive adhesive layer B has a thickness of 25 μm or less.

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