Invention Grant
- Patent Title: Ripple preventing gate driving circuit and display apparatus having the same
- Patent Title (中): 波纹防止栅极驱动电路及其显示装置
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Application No.: US12241880Application Date: 2008-09-30
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Publication No.: US08264443B2Publication Date: 2012-09-11
- Inventor: Hong-Woo Lee , Hyeon-Hwan Kim , Byeong-Jae Ahn , Sun-Hyung Kim , Sung-Man Kim , Bong-Jun Lee
- Applicant: Hong-Woo Lee , Hyeon-Hwan Kim , Byeong-Jae Ahn , Sun-Hyung Kim , Sung-Man Kim , Bong-Jun Lee
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR
- Agency: Cantor Colburn LLP
- Priority: KR10-2008-0007964 20080125
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A gate driving circuit includes stages, the stages being cascaded and each including: a pull-up part which pulls up a gate voltage to a clock signal during a horizontal scanning period (1H); a carry part which pulls up a carry voltage to the clock signal during the horizontal scanning period (1H); a pull-up driving part connected to a control terminal (Q-node) common to the carry part and the pull-up part and which receives a previous carry voltage from a first previous stage to turn on the pull-up part and the carry part; and a ripple preventing part which prevents a ripple generated at a previous Q-node of a second previous stage based on a ripple generated at the Q-node of the carry part and the pull-up part.
Public/Granted literature
- US20090189677A1 GATE DRIVING CIRCUIT AND DISPLAY APPARATUS HAVING THE SAME Public/Granted day:2009-07-30
Information query
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