Invention Grant
US08228282B2 Gate driving circuit, display apparatus having the same, and method thereof
有权
栅极驱动电路,具有该栅极驱动电路的显示装置及其方法
- Patent Title: Gate driving circuit, display apparatus having the same, and method thereof
- Patent Title (中): 栅极驱动电路,具有该栅极驱动电路的显示装置及其方法
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Application No.: US11928466Application Date: 2007-10-30
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Publication No.: US08228282B2Publication Date: 2012-07-24
- Inventor: Byoung-Sun Na , Dong-Hyeon Ki , Min-Cheol Lee , Soon-Il Ahn
- Applicant: Byoung-Sun Na , Dong-Hyeon Ki , Min-Cheol Lee , Soon-Il Ahn
- Applicant Address: KR
- Assignee: Samsung Electronics Co., Ltd.
- Current Assignee: Samsung Electronics Co., Ltd.
- Current Assignee Address: KR
- Agency: Cantor Colburn LLP
- Priority: KR10-2006-0106665 20061031
- Main IPC: G09G3/36
- IPC: G09G3/36

Abstract:
In a gate driving circuit and a display apparatus having the gate driving circuit, a pull-up transistor of a present stage among plural stages, which are connected one after another to each other and sequentially output a gate signal, pulls up a present gate signal output through an output terminal to a gate-on voltage. A buffer transistor is connected to a control terminal of the pull-up transistor to receive a previous output signal from a previous stage and to turn on the pull-up transistor. The buffer transistor has a chargeability that is about two times or greater than the chargeability of the pull-up transistor. Thus, the size of the pull-up transistor may be reduced, thereby preventing a malfunction of the gate driving circuit when the gate driving circuit is operated under conditions of high temperature or low temperature.
Public/Granted literature
- US20080100560A1 GATE DRIVING CIRCUIT, DISPLAY APPARATUS HAVING THE SAME, AND METHOD THEREOF Public/Granted day:2008-05-01
Information query
IPC分类: