THIN FILM TRANSISTOR SUBSTRATE AND METHOD FOR FABRICATING THE SAME

摘要

A TFT(Thin Film Transistor) substrate and a method of manufacturing the same are provided to manufacture a TFT substrate using only three masks to simplify a manufacturing process, and reduce the manufacturing cost. A TFT substrate includes a pixel electrode(10) formed from a transparent conductive layer on a substrate, a gate line(20) formed from a transparent conductive layer and an opaque conductive layer on the substrate, a gate electrode(30) connected to the gate line and formed from the transparent conductive layer and the opaque conductive layer on the substrate, and a gate insulating layer(40) covering the gate line and the gate electrode. The TFT substrate further includes a semiconductor layer(50) formed on the gate insulating layer and superposed on the gate electrode, a data line(60) intersecting the gate line, a source electrode(70) connected to the data line and partially superposed on the semiconductor layer, and a drain electrode(80) connected to the pixel electrode and partially superposed on the semiconductor layer.