公开(公告)号：US20040108987A1

公开(公告)日：2004-06-10

申请号：US10726518

申请日：2003-12-04

Applicant: LG.Philips LCD Co., Ltd.

Inventor： Jae-Deok Park ,  Byeong-Koo Kim ,  Kee-Jong Kim

IPC: G09G003/36

CPC classification number: G09G3/3688 ,  G09G3/3655 ,  G09G3/3677 ,  G09G2300/0876 ,  G09G2320/0257

Abstract: A system for reducing an OFF-current in a thin film transistor of a liquid crystal display device includes gate and data lines crossing each other, a pixel thin film transistor including gate, source and drain electrodes, the gate electrode connected to the gate line and the source electrode connected to the data line, a liquid crystal capacitor connected to the drain electrode of the pixel thin film transistor, a first switch thin film transistor connected to a first end of the data line, a second switch thin film transistor connected to a first end of the gate line, a first voltage source electrically connected to the drain electrode of the pixel thin film transistor, a second voltage source connected to a source electrode of the first switch thin film transistor, a third voltage source connected to gate electrodes of the first and second switch thin film transistors, and a fourth voltage source connected to a source electrode of the second switch thin film transistor.

Abstract translation: 一种用于降低液晶显示装置的薄膜晶体管中的截止电流的系统包括彼此交叉的栅极和数据线，包括栅极，源极和漏极的像素薄膜晶体管，连接到栅极线的栅电极和 连接到数据线的源电极，连接到像素薄膜晶体管的漏电极的液晶电容器，连接到数据线的第一端的第一开关薄膜晶体管，连接到数据线的第一端的第二开关薄膜晶体管 栅极线的第一端，与像素薄膜晶体管的漏电极电连接的第一电压源，连接到第一开关薄膜晶体管的源电极的第二电压源，连接到第一开关薄膜晶体管的栅电极的第三电压源 第一和第二开关薄膜晶体管，以及连接到第二开关薄膜晶体管的源电极的第四电压源。