Patent · US Active

Shift register

US7907696B2 · kind B2 · utility

7Cited by

4References

25Claims

0Family size

Assignee

Au Optronics Corporation · TW

Inventors

Wen-Pin Chen · Baoshan, TW
Lee-Hsun Chang · Baoshan, TW
Je-Hao Hsu · Nanhu, CN

Key dates

Filing date	Apr 23, 2009
Grant date	Mar 15, 2011
Priority date	—
Expiry date	Jun 11, 2029

Classification

Technology area (CPC G)Physics
CPC primaryG09G2320/0266
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A shift register includes a plurality of stages cascade-connected with each other. Each stage includes a pull-up circuit, a pull-up driving circuit, and a pull-down circuit. The pull-up circuit coupled to a first clock signal is used for providing an output signal. The pull-up driving circuit includes a control circuit and a first transistor. The control circuit has a gate coupled to a previous stage, and a drain coupled to a second clock signal. The first transistor includes a gate coupled to the source of the control circuit, a drain coupled to a driving end of the previous stage, and a source coupled to a first input end. The pull-down circuit pulls down voltage on the first input end.

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