Provided is an organic EL device and fabrication method thereof that can
prevent the performance of the organic EL layer and the TFT from being
lowered in forming the cathode using an E-beam heating evaporation
process. The organic EL device includes a substrate, an anode, an organic
EL layer, a cathode, and a transparent electrode connected with the
cathode to extract the cathode to an outside, and further includes an
interconnection line connected to the transparent electrode, for
discharging charges accumulated on the cathode outside the organic EL
device. According to the present invention, since the charges generated
on the cathode can be removed through the interconnection line, the
underlying organic EL layer and the TFT can be prevented from being
damaged, so that the device reliability can be enhanced.