Patent ID: 9564480
Date: 2017-02-07
CPC Classifications: H01L

Claim:
1. An organic light emitting display device comprising: an electrode pattern on a substrate; a barrier layer on the electrode pattern; an insulation film on the substrate and covering the barrier layer and having a contact hole on the barrier layer, wherein the barrier layer is formed from a conductive oxide, and wherein the conductive oxide is one of indium gallium zinc oxide (IGZO), zinc oxide (ZnO) and titanium oxide (TiO); a channel layer on the insulation film; an etch stopper on the channel layer; a drain electrode configured to contact one end of the channel layer and one end of the etch stopper; and an organic light emitting diode which is disposed over the substrate and includes a first electrode electrically connected to the drain electrode, an organic emission layer formed on the first electrode and a second electrode on the organic emission layer.