Patent · US Active

Scan driving circuit

US9444450B2 · kind B2 · utility

3Cited by

0References

17Claims

0Family size

Assignee

TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED · CN

Inventor

Juncheng Xiao · Longbeilingcun, CN

Key dates

Filing date	Dec 19, 2014
Grant date	Sep 13, 2016
Priority date	—
Expiry date	Dec 19, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG09G2330/021
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A scan driving circuit is disclosed, and the scan driving circuit has a pull-up control module, a pull-up module, a pull-down module, a pull-down maintaining module, a bootstrap capacitor and a constant low-level voltage source; the pull-up control module is connected to the pull-up module, the pull-down module, the pull-down maintaining module and the bootstrap capacitor respectively, and the constant low-level voltage source is connected to the pull-down maintaining module and the pull-down module respectively. The electrical leakage phenomenon can be efficiently avoided, and the reliability of the scan driving circuit is thus improved.

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