Title:
SCAN DRIVE CIRCUIT
Document Type and Number:
WIPO Patent Application WO/2018/192026
Kind Code:
A1
Abstract:
Disclosed is a scan drive circuit, comprising a plurality of scan drive units (1) connected in sequence, wherein each of the scan drive units comprises a scan signal output end (G(n)) for outputting a high-level or low-level scan signal; a pull-up circuit (10) for controlling the output of a high-level scan signal; a transfer circuit (20) for outputting a high-level current stage transmission signal; a pull-up control circuit (30) for charging a pull-up control signal point so as to pull a potential up to a high level; a pull-down holding circuit (40) for holding low levels of the pull-up control signal point and the scan signal; and a bootstrap circuit (50) for increasing a potential of the pull-up control signal point so as to prevent electric leakage, thus preventing the failure of the scan drive circuit caused due to that the negative bias of a threshold voltage.
Inventors:
SHI LONGQIANG (CN)
Application Number:
PCT/CN2017/084119
Publication Date:
October 25, 2018
Filing Date:
May 12, 2017
Export Citation:
Assignee:
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECH CO LTD (CN)
International Classes:
G09G3/36; G02F1/13
Foreign References:
| CN104464671A | 2015-03-25 | |||
| CN106057161A | 2016-10-26 | |||
| CN205069085U | 2016-03-02 | |||
| CN101765876A | 2010-06-30 | |||
| US20170047039A1 | 2017-02-16 |
Other References:
See also references of EP 3614369A4
Attorney, Agent or Firm:
CHINA WISPRO INTELLECTUAL PROPERTY LLP. (CN)
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