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:
Feb. 08, 2005
Filed:
Sep. 03, 2002
Masanobu Mizusaki, Tenri, JP;
Tadashi Kawamura, Tenri, JP;
Akiyoshi Fujii, Nara, JP;
Yuichiro Yamada, Nagoya, JP;
Masanobu Mizusaki, Tenri, JP;
Tadashi Kawamura, Tenri, JP;
Akiyoshi Fujii, Nara, JP;
Yuichiro Yamada, Nagoya, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A liquid crystal display device includes two substrates, a liquid crystal layer sandwiched between the substrates and two alignment films, each being provided on one surface of associated one of the substrates so as to face the liquid crystal layer. The device defines multiple picture elements. At least one of the two alignment films is made of a polymer material that includes a main chain, an atomic group having a bond that is selectively cut when exposed to an actinic ray and a side chain bonded to the main chain via the atomic group. The polymer material with the side chain can give a pretilt angle of greater than 85 degrees but 90 degrees or less to liquid crystal molecules. The polymer material without the side chain can give a pretilt angle of 2 degrees to 15 degrees to the liquid crystal molecules.