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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 11385391 B1

PDFFull Text
Date of Patent:
Jul. 12, 2022

Filed:

Jul. 22, 2020

Polarizer having non-polarization portions, a long polarizing plate and image display device comprising the polarizer

Applicant:

Nitto Denko Corporation, Ibaraki, JP;

Inventors:

Masahiro Yaegashi, Ibaraki, JP;

Daisuke Ogomi, Ibaraki, JP;

Yuki Nakano, Ibaraki, JP;

Yuji Saiki, Ibaraki, JP;

Kota Nakai, Ibaraki, JP;

Assignee:

NITTO DENKO CORPORATION, Ibaraki, JP;

Attorney:

WHDA, LLP

Primary Examiner:

Arnel C Lavarias

Int. Cl.
CPC ...
G02B 5/30 (2006.01); B32B 27/16 (2006.01); B32B 23/20 (2006.01); B32B 27/34 (2006.01); B29D 11/00 (2006.01); B32B 27/32 (2006.01); B32B 3/30 (2006.01); B32B 27/30 (2006.01); B32B 27/20 (2006.01); B32B 27/36 (2006.01); B32B 7/06 (2019.01); B32B 27/08 (2006.01); B32B 23/08 (2006.01); B32B 3/26 (2006.01); G02B 1/14 (2015.01); B32B 7/12 (2006.01); H01L 51/52 (2006.01); G02F 1/1335 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3033 (2013.01); B29D 11/0073 (2013.01); B32B 3/266 (2013.01); B32B 3/30 (2013.01); B32B 7/06 (2013.01); B32B 7/12 (2013.01); B32B 23/08 (2013.01); B32B 23/20 (2013.01); B32B 27/08 (2013.01); B32B 27/16 (2013.01); B32B 27/20 (2013.01); B32B 27/306 (2013.01); B32B 27/308 (2013.01); B32B 27/32 (2013.01); B32B 27/325 (2013.01); B32B 27/34 (2013.01); B32B 27/36 (2013.01); B32B 27/365 (2013.01); G02B 1/14 (2015.01); B29D 11/00644 (2013.01); B32B 2255/10 (2013.01); B32B 2255/26 (2013.01); B32B 2307/42 (2013.01); B32B 2307/536 (2013.01); B32B 2307/732 (2013.01); B32B 2307/748 (2013.01); B32B 2405/00 (2013.01); B32B 2457/20 (2013.01); B32B 2457/202 (2013.01); B32B 2457/206 (2013.01); G02F 1/13363 (2013.01); G02F 1/133528 (2013.01); G02F 1/133531 (2021.01); G02F 2201/50 (2013.01); G02F 2202/28 (2013.01); H01L 51/5281 (2013.01); H01L 51/5293 (2013.01);
Abstract

A long polarizer that can achieve the multi-functionalization and high-functionalization of an electronic device, such as an image display apparatus, that shows no variation in quality when provided as a final product, and that is excellent in yield in its production. A polarizer according to an embodiment includes a long resin film containing a dichromatic substance, the polarizer having non-polarization portions arranged in a lengthwise direction and/or a widthwise direction at predetermined intervals, the non-polarization portions including decolored portions formed through partial decoloring.

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