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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 10539717 B1

PDFFull Text
Date of Patent:
Jan. 21, 2020

Filed:

Dec. 19, 2013

Polarizing plates and optical display apparatuses including the polarizing plates

Applicant:

Cheil Industries Inc., Gumi-si, Gyeongsangbuk-do, KR;

Inventors:

Eun Su Park, Uiwang-si, KR;

Dong Yoon Shin, Uiwang-si, KR;

Pil Joo Kim, Uiwang-si, KR;

Kwang Ho Shin, Uiwang-si, KR;

Hae Ryong Chung, Uiwang-si, KR;

Assignee:

SAMSUNG SDI CO., LTD., Yongin-si, KR;

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

Vivian Chen

Int. Cl.
CPC ...
G02B 1/14 (2015.01); G02B 1/10 (2015.01); B32B 27/06 (2006.01); B32B 27/08 (2006.01); B32B 27/36 (2006.01); G02B 5/30 (2006.01); G02B 27/28 (2006.01); G02B 1/04 (2006.01); G02B 1/08 (2006.01); G02F 1/1335 (2006.01); G02F 1/13363 (2006.01); G02F 1/13 (2006.01);
U.S. Cl.
CPC ...
G02B 1/14 (2015.01); G02B 1/105 (2013.01); B32B 27/06 (2013.01); B32B 27/08 (2013.01); B32B 27/36 (2013.01); B32B 2307/40 (2013.01); B32B 2307/42 (2013.01); B32B 2307/516 (2013.01); B32B 2307/732 (2013.01); B32B 2307/734 (2013.01); B32B 2367/00 (2013.01); B32B 2551/00 (2013.01); G02B 1/04 (2013.01); G02B 1/08 (2013.01); G02B 5/30 (2013.01); G02B 5/3025 (2013.01); G02B 5/3033 (2013.01); G02B 5/3083 (2013.01); G02B 27/28 (2013.01); G02F 1/13 (2013.01); G02F 1/1335 (2013.01); G02F 1/13363 (2013.01); G02F 1/133528 (2013.01); G02F 2001/133638 (2013.01); G02F 2202/40 (2013.01); Y10T 428/31786 (2015.04);
Abstract

A polarizing plate comprises a polarizer; and at least one optical film on at least one side of the polarizer, wherein the optical film comprises a polyester film, the polyester film has a shrinkage difference between a length shrinkage in a first diagonal direction and a length shrinkage in a second diagonal direction of −0.1% to +0.1% with respect to either the mechanical direction (MD) or the transverse direction (TD) of the polyester film (as a reference direction). An optical display apparatus includes the polarizing plate.

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