Patent ID: 8822999

Claim:
An organic light-emitting display device comprising: a capacitor lower electrode formed on a substrate, at the same level as an active layer of a thin film transistor, and comprising a semiconductor material doped with ion impurities; a first insulating layer formed on the substrate, covering the active layer and the capacitor lower electrode; a gate electrode of the thin film transistor formed on the first insulating layer and comprising a gate lower electrode formed of a transparent conductive material and a gate upper electrode formed of metal; a pixel electrode formed on the first insulating layer, electrically connected to the thin film transistor, and formed of a transparent conductive material; a capacitor upper electrode disposed at the same level as the pixel electrode and formed of a transparent conductive material; an etch block layer formed between the first insulating layer and the capacitor upper electrode and formed of a transparent conductive material; source and drain electrodes of the thin film transistor electrically connected to the active layer; a second insulating layer formed between the first insulating layer and the source and drain electrodes and having an opening completely exposing the capacitor upper electrode; a third insulating layer formed on the second insulating layer and exposing the pixel electrode; and an intermediate layer disposed on the pixel electrode and comprising an emissive layer; and an opposite electrode disposed facing the pixel electrode with the intermediate layer therebetween, wherein a gap is formed by the etch block layer between a side of the capacitor upper electrode and an inner wall of the opening.