Invention Grant
- Patent Title: Gate drive circuit and display apparatus having the same
- Patent Title (中): 栅极驱动电路和具有该栅极驱动电路的显示装置
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Application No.: US12533771Application Date: 2009-07-31
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Publication No.: US08643584B2Publication Date: 2014-02-04
- Inventor: Jong-Heon Han , Seob Shin , Jae-Kyoung Kim
- Applicant: Jong-Heon Han , Seob Shin , Jae-Kyoung Kim
- Applicant Address: KR Yongin, Gyeonggi-Do
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin, Gyeonggi-Do
- Agency: F. Chau & Associates, LLC
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A gate drive circuit includes a plurality of stages connected one after another to each other. Each of the stages includes a charging section, a driving section, a discharging section, a holding section and a holding control section. The driving section pulls up a high level of a first clock signal to output a gate signal. The discharging section discharges a voltage potential of a first node to a first off-voltage. The holding section holds a voltage potential of the first node to the first off-voltage. The holding control section receives the first clock signal and a second clock signal. The holding control section holds a voltage potential of the holding section to a second off-voltage through a second node in accordance with the second clock signal to prevent floating of the holding section.
Public/Granted literature
- US20100171728A1 Gate Drive Circuit and Display Apparatus Having the Same Public/Granted day:2010-07-08
Information query
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