Patent ID: 7592624

Claim:
An organic light emitting display comprising: a substrate having formed thereon a thin film transistor including a semiconductor layer, a gate electrode, a source electrode, and a drain electrode, the source electrode and the drain electrode being coupled with a source region and a drain region, respectively, of the semiconductor layer; a passivation layer formed on the substrate and having a contact hole exposing the source electrode or the drain electrode but not the source region or the drain region; a first insulating layer pattern formed on a portion of the passivation layer corresponding to an emission region and having a step portion that is higher than the passivation layer on the thin film transistor; a pixel electrode formed on a portion of the passivation layer and on a portion of the first insulating layer pattern, the pixel electrode contacting the source electrode or the drain electrode through the contact hole; and a second insulating layer pattern formed on a portion of the passivation layer and on a portion of the pixel electrode that defines the emission region, wherein the second insulating layer pattern is formed directly on the passivation layer.