Patent ID: 7230375

Claim:
A driving system for an organic electroluminescent device, comprising: a gate electrode; a plurality of active layers separated from each other by a spacing over the gate electrode; a source electrode on each of the plurality of active layers, the source electrode including an uneven shape having a plurality of protruding portions and receded portions such that each of the protruding portions overlap the gate electrode along a length of the gate electrode and the receded portions do not overlap the gate electrode along the length of the gate electrode; and a drain electrode spaced apart from the source electrode, wherein the source electrode and the drain electrode are symmetrical with respect to the gate electrode, the source electrode is electrically interconnected to the organic electroluminescent device, and the plurality of protruding portions overlap each of the active layers with a gap between adjacent receded portions being greater than the spacing between each of the plurality of active layers.