GOA CIRCUIT

WIPO Patent Application WO/2019/095429

A1

A GOA circuit, comprising m cascaded GOA units, wherein an nth-stage GOA unit comprises: an output control module (200), a forward/reverse scanning control module (300), a node signal control module (500), a second pull-down circuit (400), a first pull-down circuit (600) and a pull-up circuit (100), wherein the forward/reverse scanning control module (300) controls a GOA circuit so that same carries out forward scanning or reverse scanning; the output control module (200) controls the output of an nth-stage gate drive signal; the first pull-down circuit (600) comprises a seventh thin-film transistor (NT7); the second pull-down circuit (400) comprises a fifth thin-film transistor (NT5); the node signal control module (500) controls the turn-on and turn-off of the fifth thin-film transistor (NT5); the pull-up circuit (100) comprises an eighth thin-film transistor (NT8); and after a liquid crystal display panel is powered off, a second global control signal (CAS2) has a low electric potential. The present invention can eliminate a residual image appearing when a liquid crystal display panel is abnormally powered off, and improve the user experience.

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XIAO JUNCHENG (CN)
GUAN YANQING (CN)

PCT/CN2017/113110

May 23, 2019

November 27, 2017

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WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD (CN)

G09G3/36

CN102945651A	2013-02-27
CN101174072A	2008-05-07
CN106328084A	2017-01-11
CN107093394A	2017-08-25
CN107146590A	2017-09-08
JP2004205588A	2004-07-22

SHENZHEN RONDA PATENT AND TRADEMARK LAW OFFICE (CN)

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