Patent ID: 8779416

Claim:
An organic light emitting diode (OLED) display comprising: a plurality of gate wires positioned over a substrate in a first direction; a plurality of data wires positioned over the gate wires in a second direction crossing the first direction; a pixel circuit including a plurality of first thin film transistors respectively electrically connected to the gate wires and the data wires; and an OLED electrically connected to the pixel circuit, wherein each of the first thin film transistors includes a first active layer interconnecting the data wires and the OLED, wherein the first active layer includes a channel region, a source region and a drain region doped with an impurity; and a first gate electrode positioned over the first active layer with first and second insulation layers sequentially interposed therebetween, wherein the second insulation layer is positioned on the channel region, and wherein the second insulation layer has substantially the same width as the first gate electrode formed on the second insulation layer.