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:
Dec. 25, 2012
Filed:
Jul. 03, 2009
Bum-gyu Choi, Daejeon, KR;
Min-jin Ko, Daejeon, KR;
Myung-sun Moon, Daejeon, KR;
Jae-ho Cheong, Daejeon, KR;
Dae-ho Kang, Daejeon, KR;
Ki-youl Lee, Daejeon, KR;
Yun-bong Kim, Daejeon, KR;
Bum-Gyu Choi, Daejeon, KR;
Min-Jin Ko, Daejeon, KR;
Myung-Sun Moon, Daejeon, KR;
Jae-Ho Cheong, Daejeon, KR;
Dae-Ho Kang, Daejeon, KR;
Ki-Youl Lee, Daejeon, KR;
Yun-Bong Kim, Daejeon, KR;
LG Chem, Ltd., Seoul, KR;
Abstract
The present invention relates to a radial-shaped liquid crystal compound, and an optical film and a liquid crystal display device comprising the same. Particularly the present invention provides a compound represented by Chemical Formula 1 comprising a radial-shaped core of tetraphenyl ethylene in which four phenyl groups are bonded to an ethylene group, and makes it possible to provide an optical film which can minimize the change of color according to viewing angle and has an improved contrast ratio and high refractive anisotropy, and a liquid crystal display device comprising the same, by using the compound.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile