Patent ID: 8502809

Claim:
An organic light emitting diode (OLED) display device comprising: a plurality of scan lines; a plurality of data lines crossing the scan lines; and a plurality of pixels at crossing regions of the scan lines and the data lines, the pixels comprising a first pixel, a second pixel adjacent to the first pixel in a scan line direction, and a third pixel adjacent to the first pixel in a data line direction, wherein each of the pixels comprises: an OLED; a switching transistor comprising a gate electrode coupled to one of the scan lines and a first electrode coupled to one of the data lines; a driving transistor coupled between the OLED and a power voltage supply line and comprising a semiconductor layer and a gate electrode coupled to a second electrode of the switching transistor; and a capacitor coupled between the gate electrode of the driving transistor and the power voltage supply line, wherein the semiconductor layers of the driving transistors of the first pixel, the second pixel, and the third pixel extend in different lengthwise directions.