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:
Apr. 29, 2003
Filed:
Aug. 24, 2000
Mitsuru Goto, Chiba, JP;
Yozo Nakayasu, Mobara, JP;
Shinji Yasukawa, Chosei, JP;
Kentaro Agata, Mobara, JP;
Yuji Yamashita, Chiba, JP;
Koichi Kotera, Kokubunji, JP;
Other;
Abstract
A liquid crystal display element having pixels, video signal lines applying a video signal voltage to the pixels and a video signal line driver supplying the video signal voltages to the video signal lines. The video signal line driver circuit includes a gray-scale voltage generating circuit provided with a resistor circuit dividing voltages between plural gray-scale reference voltages to generate plural gray-scale voltages, and selector circuits selecting one gray-scale voltage in accordance with the display data. The resistor circuit includes a resistive element provided with plural Intermediate taps for dividing voltages to generate the gray-scale voltages, gray-scale voltage lines corresponding to the gray-scale voltages, an interlayer insulating film insulating the gray-scale lines from the resistive element, and connections connecting the gray-scale voltage lines to corresponding ones of the intermediate taps through a hole in the interlayer insulating film.