Patent ID: 8237156

Claim:
An organic light emitting display device, comprising: a substrate; at least one thin film transistor comprising a gate electrode formed on the substrate and comprising: a metal oxide layer and a metal layer; a semiconductor layer comprising source/drain regions and a channel layer, wherein a gate insulating layer is formed between the gate electrode and the semiconductor layer; and source/drain electrodes connected to the source/drain regions; at least one capacitor comprising a first electrode formed on a layer on which the gate electrode is formed using a material used to form the gate electrode, and a second electrode formed on a layer on which the source/drain electrodes are formed using a material used to form the source/drain electrodes, wherein the gate insulating layer is formed between the first electrode and the second electrode of the capacitor; and at least one organic light emitting device comprising: a pixel electrode formed on a layer on which the gate electrode is formed using a material used to form the gate electrode and connected to the source/drain electrodes via a contact hole; an organic light emitting layer disposed on the pixel electrode; and an opposite electrode covering the organic light emitting layer.