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:
Dec. 20, 2001
Yasuo Koike, Yokohama, JP;
Hayami Tabira, Yokohama, JP;
Takashi Inoue, Yokohama, JP;
Hirotaka Imayama, Mobara, JP;
Masateru Morimoto, Mobara, JP;
Yasuo Koike, Yokohama, JP;
Hayami Tabira, Yokohama, JP;
Takashi Inoue, Yokohama, JP;
Hirotaka Imayama, Mobara, JP;
Masateru Morimoto, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The present invention materializes a liquid-crystal display element and a liquid-crystal display device which promise superior display performance, in which the surface of an alignment film formed on a substrate member has been subjected to rubbing in the state the surface potential of a rubbing roller has been controlled by bringing a charge control member made to have the same potential as the potential of the substrate member into contact with the rubbing roller, to keep any foreign matter from adhering to the alignment film surface.