Lcd and organic el display

An organic Electroluminescence (EL) display including:

• a substrate;
• and
• switching elements formed on the substrate;
• wherein the substrate is one of a glass substrate, a plastic substrate or a plastic film, and
• wherein each of the switching elements comprises a thin film transistor comprising:
• a gate terminal formed over the substrate;
• a gate insulating film formed on the gate terminal;
• an amorphous oxide channel layer formed on the gate insulating film, the amorphous oxide channel layer including In, Ga, Zn and O;
• a drain terminal formed on the amorphous oxide channel layer, the drain terminal partially overlapping with the gate terminal;
• and
• a source terminal formed on the amorphous oxide channel layer and apart from the drain terminal, the source terminal partially overlapping with the gate terminal.