Patent ID: 7830476

Claim:
An electroluminescence display device, comprising: a first thin film transistor having an active layer, a gate electrode with a double layer structure overlapping the active layer with a gate insulating film therebetween, a source electrode and a drain electrode connected to the active layer through first and second contact holes which penetrate an interlayer insulating film on the gate insulating film; an electric power line extended from the source electrode, wherein the electric power line and the source electrode are formed on the interlayer insulating film; a pixel electrode having a double layer structure, including a first transparent conductive layer and a second conductive layer formed on the first transparent conductive layer, and directly formed on the gate insulating film, wherein an upper surface of the first transparent conductive layer and a side surface of the second transparent conductive layer are exposed through a first transmission hole, which penetrates the interlayer insulating film and the second conductive layer; a luminescence layer on the upper surface of the first transparent conductive layer of the pixel electrode; and a common electrode on the luminescence layer, wherein the gate electrode and the pixel electrode are directly formed on the gate insulating film, and the drain electrode is directly contacted with the upper surface of the first transparent conductive layer and the one side surface of the second conductive layer exposed through the first transmission hole.