An organic electro luminescent (EL) display device includes a substrate composed of an array unit and a ground unit; an organic luminescent unit in the array unit and having an organic emitting layer, a first electrode and a second electrode; a ground line in the ground unit directly contacted to the second electrode of the organic luminescent unit; and an insulating layer on the organic emitting layer and exposing a part of the ground line such that the second electrode is directly connected to the ground line.