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:
May. 16, 2017
Filed:
Jun. 20, 2012
Toshihiro Matsumoto, Osaka, JP;
Masanobu Mizusaki, Osaka, JP;
Masayuki Kanehiro, Osaka, JP;
Yuichi Kawahira, Osaka, JP;
Toshihiro Matsumoto, Osaka, JP;
Masanobu Mizusaki, Osaka, JP;
Masayuki Kanehiro, Osaka, JP;
Yuichi Kawahira, Osaka, JP;
MERCK PATENT GmbH, Darmstadt, DE;
Abstract
The present invention provides a liquid crystal display device capable of reducing image sticking phenomena and of maintaining the voltage holding ratio, the liquid crystal display device being produced using photo-alignment technology and PSA technology in combination. The liquid crystal display device according to the present invention includes a pair of substrates, a liquid crystal layer disposed between the pair of substrates, an alignment film formed on at least one of the pair of substrates, and a polymer layer for controlling the alignment of liquid crystal molecules formed on the alignment film, wherein the polymer layer is formed by polymerization of one or more species of monomers added in the liquid crystal layer, the polymerization being initiated by radicals generated of the one or more species of monomers upon absorption of light, and the alignment film includes a polymer material having a main chain that contains an imide structure and a side chain that contains a photoreactive functional group, and has undergone a photo-alignment treatment.