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:
Apr. 19, 2016
Filed:
Jun. 12, 2008
Applicants:
Hee-jung Kim, Daejeon, KR;
Dong-ryul Kim, Daejeon, KR;
Boong-goon Jeong, Daejeon, KR;
Ju-eun Cha, Daegu, KR;
Young-whan Park, Daejeon, KR;
Dae-woo Nam, Daejeon, KR;
Inventors:
Hee-Jung Kim, Daejeon, KR;
Dong-Ryul Kim, Daejeon, KR;
Boong-Goon Jeong, Daejeon, KR;
Ju-Eun Cha, Daegu, KR;
Young-Whan Park, Daejeon, KR;
Dae-Woo Nam, Daejeon, KR;
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/00 (2006.01); C08J 5/18 (2006.01); G02B 1/04 (2006.01); G02F 1/13363 (2006.01); G02B 5/30 (2006.01);
U.S. Cl.
CPC ...
C08J 5/18 (2013.01); G02B 1/04 (2013.01); G02F 1/13363 (2013.01); C08J 2351/06 (2013.01); G02B 5/3083 (2013.01); G02F 2413/01 (2013.01); Y10T 428/10 (2015.01);
Abstract
The present invention relates to an optical film that includes a graft copolymer that includes two types or more of (meth)acryl based resins that have different glass transition temperatures, a retardation film, a method of producing the same, and a polarizing plate and a liquid crystal display device that include the optical film or the retardation film.