Title:
GATE DRIVE CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2019/085266
Kind Code:
A1
Abstract:
A gate drive circuit, comprising: a pull-up control module (101, 201), used for generating a first control signal in the case of power outage; a pull-up output module (102, 202), used for outputting high level under the control of the first control signal; a pull-down control module (103, 203), used for generating a second control signal in the case of power outage; and a pull-down output module (104, 204), used for outputting low level under the control of the second control signal. The output end of the pull-up output module (102, 202) and the output end of the pull-down output module (104, 204) are connected to the output end of an Nth gate drive unit. During power outage, the pull-up output module (102, 202) and the pull-down output module (104, 204) enable the output end of the Nth gate drive unit to output high level. In the case that sudden power outage occurs during use of a liquid crystal screen, the image on the screen can be quickly cleared, and the appearance of image sticking in the display is avoided.
Inventors:
XIAO JUNCHENG (CN)
DAI RONGLEI (CN)
DAI RONGLEI (CN)
Application Number:
PCT/CN2018/071660
Publication Date:
May 09, 2019
Filing Date:
January 05, 2018
Export Citation:
Assignee:
WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO LTD (CN)
International Classes:
G09G3/36
Foreign References:
| CN105206246A | 2015-12-30 | |||
| CN103871388A | 2014-06-18 | |||
| CN105489180A | 2016-04-13 | |||
| CN105206244A | 2015-12-30 | |||
| CN105513550A | 2016-04-20 | |||
| CN105047172A | 2015-11-11 | |||
| US20120162187A1 | 2012-06-28 |
Other References:
See also references of EP 3706111A4
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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