Patent ID: 7544534

Claim:
An Organic Light-Emitting Display (OLED) comprising: a substrate including a circuit region and a pixel region; at least one circuit Thin Film Transistor (TFT) and at least one pixel TFT respectively arranged on the circuit region and the pixel region, each TFT including a semiconductor layer, a gate electrode, a source electrode and a drain electrode; a pixel electrode electrically connected to one of the source and drain electrodes of the at least one pixel TFT; and at least one silicon nitride layer arranged only between the source and drain electrodes of the at least one circuit TFT and the substrate, and silicon nitride layers being absent from the entire pixel region; wherein each circuit TFT includes the source and drain electrodes directly contacting the silicon nitride layer which in turn directly contacts a silicon dioxide layer which in turn directly contacts the gate electrode; and wherein each pixel TFT includes the source and drain electrodes directly contacting a silicon dioxide layer which in turn directly contacts the gate electrode.