Patent ID: 8502211

Claim:
An organic light emitting diode display comprising a substrate having a first region and a second region; a first thin film transistor comprising a source electrode and a drain electrode at the first region; a second thin film transistor comprising a source electrode and a drain electrode at the second region; a protective layer on the first and second thin film transistors; a first planarization layer on the protective layer; a second planarization layer pattern on the first planarization layer; a first pixel electrode electrically connected to the source electrode or the drain electrode of the first thin film transistor through a first via contact hole formed through the protective layer and the first planarization layer; and a second pixel electrode electrically connected to the source electrode or the drain electrode of the second thin film transistor through a second via contact hole formed through the protective layer, the first planarization layer, and the second planarization layer pattern, the second planarization layer corresponding to a shape of the second pixel electrode and being located between the first planarization layer and the second pixel electrode.