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Title:
GATE DRIVER AND OPERATION METHOD OF THE SAME
Document Type and Number:
Japanese Patent JP2010113343
Kind Code:
A
Abstract:

To provide a gate driver and an operation method of the driver.

The gate driver for use in a liquid crystal display device has a plurality of shift registers connected in series. Each of the shift registers is used to provide a gate-line drive signal to a row of pixels in the liquid crystal display. The gate-line drive signal has a front pulse and a rear pulse, and the shift register has a front-pulse generating part and a rear-pulse generating part for generating to corresponding pulse. Each of the pulse generating parts has a first pull-up circuit to generate a voltage level to keep a switching element in a second pull-up circuit in a conducting state, so as to generate a front pulse or a rear pulse, in response to a corresponding clock signal and to allow two pull-down circuits, in response to the voltage level, to generate the front pulse or the rear pulse only at a pull-down period.


Inventors:
Chien, Chih Yuan
Tsai, Tsung-ting
Application Number:
JP2009000191854
Publication Date:
May 20, 2010
Filing Date:
August 21, 2009
Export Citation:
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Assignee:
AU OPTRONICS CORP
International Classes:
G09G3/36; G02F1/133; G09G3/20; G11C19/00; G11C19/28; H03K17/00; H03K17/693; H03K23/44
Domestic Patent References:
JP2007114781A2007-05-10
JP2006024350A2006-01-26
JP2006085118A2006-03-30
JP2004295126A2004-10-21
JP2006500617A2006-01-05
JP2007114781A2007-05-10
JP2006024350A2006-01-26
JP2006085118A2006-03-30
JP2004295126A2004-10-21
JP2006500617A2006-01-05
Attorney, Agent or Firm:
特許業務法人 エビス国際特許事務所