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:
Mar. 09, 2004
Filed:
Mar. 09, 2001
Manabu Kodate, Yokohama, JP;
Shinichi Kimura, Yokohama, JP;
Kaoru Kusafuka, Kawasaki, JP;
Hidehisa Shimizu, Sagamihara, JP;
International Business Machines Corporation, Armonk, NY (US);
Abstract
A circumferential area of a liquid-crystal cell is provided with a common wiring, a gate wiring, a source wiring, and an alignment film. The alignment film is insulated from the gate wiring and the source wiring by an insulating film. The common wiring is provided with a common-potential exposure portion through an opening formed on the insulating film and electrically connected with the alignment film. Because a common potential close to an average potential of cells is supplied to the alignment film, it is possible to prevent screen display troubles and deterioration caused by impurity ions remaining on the surface or the inside of the alignment film.