Patent ID: 8232123

Claim:
A method for manufacturing an organic light emitting device, the method comprising: disposing a switching control electrode and a driving control electrode on a substrate; disposing a driving gate insulating layer on the driving control electrode; surface-treating the driving gate insulating layer with a nitrogen-containing gas; disposing a first amorphous silicon layer on the driving gate insulating layer; crystallizing the first amorphous silicon layer to form a driving semiconductor; disposing a driving input electrode and a driving output electrode on the driving semiconductor; disposing a switching gate insulating layer on the driving input electrode, the driving output electrode and the switching control electrode; disposing a switching semiconductor on the switching gate insulating layer; disposing a switching input electrode and a switching output electrode on the switching semiconductor; disposing a pixel electrode electrically connected to the driving output electrode; disposing an emission layer on the pixel electrode; and disposing a common electrode on the emission layer, wherein a concentration of nitrogen in an interface between the driving gate insulating layer and the driving semiconductor is between about 0.06 atomic percent to about 4.75 atomic percent, based on a total composition of the driving gate insulating layer.