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:
Jun. 27, 2017
Filed:
Jul. 02, 2012
Retardation film, manufacturing method thereof, and liquid crystal display device including the same
Applicants:
Jun-wuk Park, Daejeon-si, KR;
Jeong-min Choi, Daejeon-si, KR;
Nam-jeong Lee, Daejeon-si, KR;
Inventors:
Assignee:
LG CHEM, LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/13363 (2006.01); G02B 5/30 (2006.01); G02B 5/32 (2006.01);
U.S. Cl.
CPC ...
G02F 1/13363 (2013.01); G02B 5/3083 (2013.01); G02B 5/32 (2013.01); G02F 1/133634 (2013.01); Y10T 428/105 (2015.01); Y10T 428/1036 (2015.01);
Abstract
There are provided a retardation film, a manufacturing method thereof, and a liquid crystal display device including the same. The retardation film includes 1) an acrylic film, 2) a coating layer of a negative C-type material, and 3) a primer layer including a copolymer containing an aromatic vinyl-based unit and a maleic acid-based unit, provided between the acrylic film and the coating layer of the negative C-type material. The retardation film may be used in an in-plane switching mode liquid crystal display device.