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:
Sep. 17, 2002
Filed:
Jul. 26, 1999
Applicant:
Inventors:
Kazuhiro Nishiyama, Hirakata, JP;
Yukio Tanaka, Kusatsu, JP;
Kazunori Komori, Sanda, JP;
Akio Takimoto, Neyagawa, JP;
Assignee:
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1331 ; G02F 1/13 ;
U.S. Cl.
CPC ...
G02F 1/1331 ; G02F 1/13 ;
Abstract
The present invention is intended to eliminate any leakage of light which would occur, while in a black display state, due to a disordered alignment of liquid crystals around a pixel electrode in a liquid crystal device and to provide an improved contrast. The leakage of light around pixels can be suppressed and the contrast can be improved, for example, by rubbing the surface in a direction at an angle of 45 degrees with respect to any of the edges of a square pixel electrode (a direction shown by the arrow ) in a homeotropic type liquid crystal device.