Abstract:
A pad electrode structure including a substrate, an insulating layer on the substrate, a pad electrode on a portion of the insulating layer, and an organic insulating layer on the pad electrode and having an opening exposing an upper surface of the pad electrode, wherein an insertion area is in the insulating layer near the substrate, and wherein the organic insulating layer is separated from an end portion of the substrate, and a portion of the organic insulating layer is in the insertion area.