Invention Grant
- Patent Title: Scanning driving circuit
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Application No.: US15540983Application Date: 2017-05-12
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Publication No.: US10431135B2Publication Date: 2019-10-01
- Inventor: Longqiang Shi
- Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
- Applicant Address: CN Shenzhen, Guangdong
- Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Current Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
- Current Assignee Address: CN Shenzhen, Guangdong
- Agent Andrew C. Cheng
- International Application: PCT/CN2017/084119 WO 20170512
- International Announcement: WO2018/192026 WO 20181025
- Main IPC: G11C19/00
- IPC: G11C19/00 ; G09G3/20

Abstract:
The disclosure provides a scanning driving circuit including a plurality of scanning driving units connected in turn, each scanning driving unit includes a scanning signal output terminal for outputting a high or low voltage level scanning signal; a pull-up circuit, for controlling the output of a high voltage level scanning signal; a transfer circuit, for outputting the staged transmission signal at a high voltage level; a pull-up control circuit, for charging the pull-up control signal point to pull the potential to a high voltage level; a pull-down holding circuit, for maintaining a pull-up control signal point and scanning signal at a low voltage level; a bootstrap circuit, for raising the potential of the pull-up control signal point to prevent leakage, and thus prevent the circuit scanning driving circuit from malfunction caused by the threshold voltage being slightly negative.
Public/Granted literature
- US20180308407A1 SCANNING DRIVING CIRCUIT Public/Granted day:2018-10-25
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