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.

Date of Patent:
Dec. 26, 2000

Filed:

Feb. 25, 1997
Applicant:
Inventors:

Chia-Yuan Chang, Ping-Tung Hsien, TW;

Nang-Ping Tu, Hsinchu, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345100 ; 345 98 ; 345 99 ;
Abstract

A thin-film transistor liquid-crystal display (TFT LCD) driver includes a shift register, a sample and hold circuit, a group block, and a controller. The shift register provides N graded sample clocks. Video signals are delivered to the group block via the sample and hold circuit through the control of the controller. The group block having n groups of N switches transfers a group of N pixel signals from the sample and hold circuit to the display. The display driver of the invention providing n.times.N output lines by using N processing units by virtue of the output distribution of the group block not only reduces circuit space, but also lowers the power consumption requirements.


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