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:
Aug. 20, 2002
Filed:
Jun. 29, 1999
Nobuyuki Suzuki, Mobara, JP;
Toshifumi Ozaki, Koganei, JP;
Yasuyuki Mishima, Mobara, JP;
Masahiro Ishii, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
In a liquid crystal display device having a pair of substrates disposed to oppose one another and a liquid crystal layer sealed therebetween, an image signal driver circuit element disposed on a surface of one of the pair of substrates confronting the liquid crystal layer, and a plurality of wiring layers formed on the surface so as to connect the image signal driver circuit element electrically to external circuitry at least two of the plurality of the wiring layers belongs to a first group and are connected to input electrodes of the image signal driver circuit element for receiving logic signals, at least two of the plurality of the wiring layers other than those of the first group belongs to a second group and are connected to input electrodes of the image signal driver circuit element, other than those for receiving logic signals, which are electrically connected to a voltage supply, and at least one of the wiring layers belonging to the first group and the wiring layers belonging to the second group have substantially similar electric resistance to each other in the group thereof. According to the arrangement, the liquid crystal display device enables a stable operation of the image signal drive circuitry thereof.