Thin-film transistor array substrate, organic light-emitting display including the same and method of manufacturing the same

An organic light-emitting display comprising:

• a thin film transistor disposed on a substrate, wherein the thin film transistor comprises an active layer, a gate electrode, and source and drain electrodes;
• a capacitor comprising i) a lower electrode disposed on the same layer as the active layer and ii) an upper electrode disposed on the same layer as the gate electrode;
• a pixel electrode disposed on the same layer as the gate electrode and the upper electrode, wherein the pixel electrode is electrically connected to at least one of the source and drain electrodes;
• a first insulating layer disposed between the active layer and the gate electrode and between the lower electrode and the upper electrode, wherein at least a portion of the lower electrode is not covered by the first insulating layer;
• a second insulating layer between the first insulating layer and the source and drain electrodes, wherein at least a portion of the upper and lower electrodes is not covered by the second insulating layer;
• a third insulating layer substantially covering the source and drain electrodes and the upper electrode, wherein at least a portion of the pixel electrode is not covered by the third insulating layer;
• an organic emission layer disposed on the pixel electrode;
• and
• an opposite electrode disposed on the organic emission layer.