Patent ID: 7989242

Claim:
A method of fabricating an array substrate for a liquid crystal display device, comprising: forming a gate line and a gate electrode on a substrate, the gate electrode connected to the gate line; forming a gate insulating layer on the gate line and the gate electrode, the gate insulating layer including an organic insulating material such that a radical of carbon chain has a composition ratio of about 8% to about 11% by weight; forming a semiconductor layer on the gate insulating layer over the gate electrode; forming a data line on the gate insulating layer and source and drain electrodes on the semiconductor layer, the data line crossing the gate line to define a pixel region, the source electrode connected to the data line and the drain electrode spaced apart from the source electrode; forming a passivation layer on the data line, the source electrode and the drain electrode, the passivation layer having a drain contact hole exposing the drain electrode; and forming a pixel electrode on the passivation layer, the pixel electrode connected to the drain electrode through the drain contact hole, wherein forming the gate insulating layer comprises: coating the substrate having the gate line and the gate electrode with a mixture of TEOS, MTMS and metal oxide; and curing the gate insulating layer.