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:
Aug. 05, 2008
Filed:
Sep. 01, 2005
Jae Min OH, Gyeonggi-Do, KR;
O Bum Kwon, Seoul, KR;
Won Seok Dong, Gyeonggi-Do, KR;
Bum Jin Lee, Gyeonggi-Do, KR;
Jong Seob Kim, Daejeon-Si, KR;
Jae Min Oh, Gyeonggi-Do, KR;
O Bum Kwon, Seoul, KR;
Won Seok Dong, Gyeonggi-Do, KR;
Bum Jin Lee, Gyeonggi-Do, KR;
Jong Seob Kim, Daejeon-Si, KR;
Cheil Industries Inc., Gyeongsangbuk-Do, KR;
Abstract
Disclosed herein is an LC aligning agent using diamine having dendron side chains. In detail, the present invention relates to a composition for an LC alignment film which employs diamine having dendron side chains to produce polyamic acid, followed by imidization. When the LC alignment film is applied to a liquid crystal display device, high heat resistance, high penetration in a visible ray range, excellent alignment, and a high voltage holding ratio are assured. Even though it contains a small amount of functional diamine, a high pretilt angle can be assured. Thus, the pretilt angle is easily controlled and a vertical aligning force is improved.