Invention Grant
- Patent Title: Gate driving circuit and display apparatus having the same
- Patent Title (中): 栅极驱动电路及其显示装置
-
Application No.: US12338182Application Date: 2008-12-18
-
Publication No.: US08098227B2Publication Date: 2012-01-17
- Inventor: Hong-Woo Lee , Jong-Hwan Lee , Beom-Jun Kim , Sung-Man Kim , Gyu-Tae Kim , Kyoung-Jun Jang
- Applicant: Hong-Woo Lee , Jong-Hwan Lee , Beom-Jun Kim , Sung-Man Kim , Gyu-Tae Kim , Kyoung-Jun Jang
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR
- Agency: Cantor Colburn LLP
- Priority: KR10-2008-0009212 20080129
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
A gate driving circuit includes cascaded stages, each including a pull-up part, a carry part, a pull-up driving part, a holding part and an inverter. The pull-up part pulls up a gate voltage to an input clock. The carry part pulls up a carry voltage to the input clock. The pull-up driving part is connected to a control terminal (Q-node) common to the carry part and the pull-up part, and receives a previous carry voltage from a previous stage to turn on the pull-up part and the carry part. The holding part holds the gate voltage at an off-voltage, and the inverter controls at least one of turning on the holding part and turning off the holding part based on an inverter clock. A high level of the inverter clock in a given horizontal period (1H) temporally precedes a high level of the input clock by a predetermined time interval.
Public/Granted literature
- US20090189679A1 GATE DRIVING CIRCUIT AND DISPLAY APPARATUS HAVING THE SAME Public/Granted day:2009-07-30
Information query
IPC分类: