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.:
Date of Patent:
Jul. 14, 2015
Filed:
Dec. 13, 2012
Eun Su Park, Uiwang-si, KR;
Kwang Ho Shin, Uiwang-si, KR;
Dong Yoon Shin, Uiwang-si, KR;
Eun Kyeong Seo, Uiwang-si, KR;
Hae Ryong Chung, Uiwang-si, KR;
Eun Su Park, Uiwang-si, KR;
Kwang Ho Shin, Uiwang-si, KR;
Dong Yoon Shin, Uiwang-si, KR;
Eun Kyeong Seo, Uiwang-si, KR;
Hae Ryong Chung, Uiwang-si, KR;
CHEIL INDUSTRIES, INC., Gumi-si, Kyeongsangbuk-do, KR;
Abstract
A polarizing plate includes a polarizer, a first protective film attached to one side of the polarizer, and a second protective film attached to another side of the polarizer. A ratio between coefficients of thermal expansion of the first and second protective films, measured in a transverse direction (TD) at a temperature from about 25° C. to about 120° C., ranges from about 0.5 to about 2. A ratio between coefficients of thermal expansion of the first and second protective films measured in a machine direction (MD) at a temperature from about 25° C. to about 120° C. ranges from about 0.5 to about 2.