Organic light emitting diode display and manufacturing method thereof

Abstract

An organic light emitting diode display comprises a substrate including a display area in which a pixel is disposed and a peripheral area surrounding the display area, a driving semiconductor layer disposed in the display area on the substrate, a driving gate electrode disposed in the display area on the driving semiconductor layer, a common voltage line disposed in the peripheral area on the substrate and disposed on a same layer as the driving gate electrode, a gate electrode anti-oxidation layer disposed on the driving gate electrode, a common voltage line anti-oxidation layer disposed on the common voltage line, an interlayer insulating layer disposed on the driving semiconductor layer, the driving gate electrode, the common voltage line, the gate electrode anti-oxidation layer, and the common voltage line anti-oxidation layer. A driving source electrode and a driving drain electrode are disposed in the display area on the interlayer insulating layer, and a common voltage applying electrode is disposed in the peripheral area on the interlayer insulating layer and on the same layer as the driving source electrode and the driving drain electrode.