Patent · US Active

Scan driving circuit and LCD device

US9847068B2 · kind B2 · utility

1Cited by

0References

16Claims

0Family size

Assignee

TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED · CN

Inventor

Chao Dai · Nanhu, CN

Key dates

Filing date	May 26, 2014
Grant date	Dec 19, 2017
Priority date	—
Expiry date	Nov 7, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG09G2330/12
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A scan driving circuit includes a repair assembly, a pull-up assembly, a pull-up control assembly that drives the pull-up assembly, a pull-down maintaining assembly, and a reference low-level signal. When the pull-down maintaining assembly turns off in a work stage of a current scanning line, the repair assembly turns off. When the pull-down maintaining assembly turns on in the work stage of the current scanning line, the repair assembly is connected with the pull-down maintaining assembly. In the work stage of the current scanning line, the reference low-level signal is sent to the repair assembly via the turn-off unit, and turns off the pull-down maintaining assembly through the repair assembly.

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