Patent ID: 8158979

Claim:
An organic light emitting display comprising: a substrate; a gate electrode formed on the substrate; a first insulating layer on the gate electrode; an active layer comprising an oxide semiconductor material on the first insulating layer and the gate electrode; a second insulating layer on the active layer; source and drain electrodes on the second insulating layer coupled to the active layer; a third insulating layer comprising an organic material on the source and drain electrodes and on the second insulator; an anode electrode on the third insulating layer electrically coupled to the source or drain electrode; a pixel defining layer on the anode electrode and the third insulator patterned so that the anode electrode in an emission region is exposed; an organic light emitting layer formed on the exposed anode electrode; and a cathode electrode formed on the organic light emitting layer, wherein the anode electrode does not overlap the active layer.