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. 20, 2010
Filed:
Jun. 05, 2008
Shigeyuki Harada, Shizuoka, JP;
Tsunehisa Kimura, Tokyo, JP;
Shigeyuki Harada, Shizuoka, JP;
Tsunehisa Kimura, Tokyo, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A disclosed liquid crystal display device includes a liquid crystal composition contained in a cell having a liquid crystal alignment film. The liquid crystal alignment film has a lamellar structure and includes at least one type of a triphenylene compound (I) represented by general formula (1): In general formula (1), L represents —O— or —S—; R, R, R, R, and Rrepresent the same or different hydrocarbon radicals with 4 or more carbon atoms; Rrepresents a divalent hydrocarbon radical with 4 or more carbon atoms; and Rrepresents —SiRRRor —P(═O)(OH)where R, R, and Reach individually represents —Cl, —OH, —OCH, or —OCH.