Patent ID: 7504661

Claim:
A thin film transistor substrate, comprising: a gate line on a liquid crystal display substrate; a data line which crosses the gate line with a gate insulating pattern therebetween to provide a pixel area; a thin film transistor formed in the pixel area, the thin film transistor having a gate electrode connected to the gate line, a semiconductor pattern which forms a channel, a source electrode connected to the data line, a drain electrode which faces the source electrode with the semiconductor pattern therebetween; a pixel electrode consisted of a transparent conductive film in the pixel area and a gate metal film deposited on the transparent conductive film; and a semiconductor passivation film on an exposed active layer of the semiconductor pattern corresponding to the channel, the semiconductor passivation film containing a plasma-exposed semiconductor; wherein a length of the semiconductor passivation film on the exposed active layer is same with a length of the exposed active layer corresponding to the channel.