Patent ID: 8716704

Claim:
An organic electroluminescent device, comprising: a gate line on a substrate; a data line crossing the gate line to define a pixel region; a power line crossing one of the gate line and the data line; a switching element; a driving element including: a driving gate electrode connected to the switching element, the driving gate electrode formed uniformly on the substrate; a gate-insulating layer on the driving gate electrode; a driving semiconductor layer on the gate-insulating layer; a driving source electrode connected to the power line, the driving source electrode having a first driving source electrode along a first direction and a plurality of second driving source electrodes extending from the first driving source electrode along a second direction crossing the first direction; a driving drain electrode spaced apart from the driving source electrode, the driving drain electrode having a first driving drain electrode along the first direction and a plurality of second driving drain electrodes extending from the first driving drain electrode along the second direction, wherein the plurality of second driving source electrodes alternate with the plurality of second driving drain electrodes, wherein the driving source electrode and the driving drain electrode including an interval therebetween are facing the driving gate electrode, wherein the driving semiconductor layer on the gate-insulating layer completely covers four sides of the driving gate electrode under the gate-insulating layer; and an organic electroluminescent diode connected to the driving element, wherein one of outermost second driving source electrodes of the plurality of second driving source electrodes and one of outermost second driving drain electrodes of the plurality of second driving drain electrodes are positioned at opposing outermost edges of the driving element, respectively.