Patent ID: 6275278
Filing Date: 2001-08-14
Classification: G02F

Abstract:
A liquid crystal display device comprising:a substrate;a plurality of gate lines being formed on the substrate and extending in a first direction, each of which has a gate terminal for connecting to an external circuit at an end thereof;a first insulating film being formed on the plurality of gate lines;a plurality of data lines being formed on the first insulating film and extending in a second direction transverse to the first direction;a thin film transistor having both a semiconductor region and a first electrode being stacked on the first insulating film in this order, wherein the first electrode confronts a part of one of the plurality of data lines on the semiconductor region;a second insulating film being formed on the plurality of data lines and the first electrode of the thin film transistor; anda pixel electrode being formed on the second insulating film and connected to the first electrode in a first opening being formed through the second insulating film,wherein at least one of the gate terminals of the plurality of gate lines has a first conductive layer being formed under the first insulating film and a second conductive layer of oxide conductor material, the second conductive layer is extended from a first portion thereof contacting with the first conductive layer in a second opening being formed through the first and second insulating films up to a second portion thereof surrounding the second opening on the second insulating film, and the second portion of the second conductive layer is extended longer along the first direction than extended along the second direction from the second opening.