Patent ID: 8692453

Claim:
A method of fabricating an OLED, comprising: forming a thin film transistor comprising source and drain electrodes on a substrate; forming a first insulating layer on the substrate; forming a second insulating layer on the first insulating layer; etching an upper surface of the second insulating layer so as not to expose the first insulating layer, thereby forming a trench in the second insulating layer; etching the first and second insulating layers to form a via hole extending from a bottom of the trench and exposing a portion of one of the source electrode and the drain electrode; forming a first electrode in the trench that is connected to the exposed portion of one of the source electrode and the drain electrode though the via hole, the upper surface of the first electrode being disposed at or below a plane of the upper surface of the second insulating layer; forming a pixel defining layer comprising an opening exposing the first electrode in the trench; forming an organic layer comprising at least an organic emission layer in the opening; and forming a second electrode on an entire surface of the substrate comprising the organic layer.