Patent · US Active

Shift register

US8081731B2 · kind B2 · utility

9Cited by

3References

14Claims

0Family size

Assignee

Au Optronics Corporation · TW

Inventors

Chih-Lung Lin · Redmond, US
Chun-Da Tu · Hsinchu, TW
Yung-Chih Chen · Baoshan, TW

Key dates

Filing date	Nov 9, 2009
Grant date	Dec 20, 2011
Priority date	—
Expiry date	Dec 26, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG09G2310/0286
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A shift register includes a plurality of electrically connected shift units. Each shift unit includes a pull-up circuit, a pull-up driving circuit, a pull-down circuit, and a pull-down driving circuit. The pull-up circuit outputs a first signal to an output node according to the first signal and a voltage of a driving node. The pull-up driving drives the pull-up circuit according to an output voltage of the previous shift unit. The pull-down driving circuit outputs a low level voltage to the driving node and the output node according to the first signal and a second signal. The pull-down circuit resets the pull-up driving circuit according to the voltage of the output node and outputs the low level voltage to the output node and the driving node according to a third signal and a fourth signal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.