Patent ID: 7982215

Claim:
A TFT substrate comprising: a substrate; a gate electrode and a gate wire formed above the substrate; a gate insulating film formed at least above the gate electrode and the gate wire; a first oxide layer formed above the gate insulating film which is formed at least above the gate electrode; and a second oxide layer formed above the first oxide layer; wherein at least a pixel electrode is formed from the second oxide layer, and wherein at least one of the following conditions of a) or b) or c) or d) must be satisfied: a) the pixel electrode, a source electrode and a drain electrode, and a source wire and a drain wire are formed from the second oxide layer; or b) the pixel electrode is formed of the first oxide layer and the second oxide layer; or c) the TFT substrate is provided with a protective insulating film above the gate electrode and the gate wire, as well as above the source wire, the drain wire, the source electrode and the drain electrode, in a state in which the pixel electrode, the source/drain wire pad and the gate wire pad are exposed, and the source wire, the drain wire, the source electrode, the drain electrode and the pixel electrode are formed from the second oxide layer.