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.

Date of Patent:
Mar. 22, 2016

Filed:

Dec. 16, 2013
Applicant:

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

Inventors:

Ae Kyoung Kim, Uiwang-si, KR;

Han Saem Kang, Uiwang-si, KR;

Han Su Kim, Uiwang-si, KR;

Dong Yoon Shin, Uiwang-si, KR;

A Ra Jo, Uiwang-si, KR;

Hae Ryong Chung, Uiwang-si, KR;

Assignee:

CHEIL INDUSTRIES INC., Gumi-si, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02F 1/1335 (2006.01); G02B 1/10 (2015.01);
U.S. Cl.
CPC ...
G02F 1/133528 (2013.01); G02B 5/3033 (2013.01); G02B 5/3083 (2013.01); G02B 1/105 (2013.01);
Abstract

A polarizing plate includes a polarizer, a retardation film on a first side (e.g., a lower side) of the polarizer, and a protective film on a second side (e.g., an upper side) of the polarizer. The retardation film has an axis distortion angle between a fast axis of the retardation film and an absorption axis of the polarizer of about +0.03° to less than +0.2°. The protective film has an in-plane phase difference (Ro) of greater than about 10,000 nm and about 15,000 nm or less at a wavelength of 550 nm. A liquid crystal display apparatus includes the polarizing plate.


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