Patent ID: 7820477

Claim:
A method of fabricating an organic TFT array substrate comprising the steps of: forming on a substrate a source/drain metal pattern including a data line, a source electrode connected to the data line, and a drain electrode disposed a predetermined distance from the source electrode; forming a pixel electrode connected to the drain electrode; sequentially disposing an organic semiconductor material, an organic insulating material, a gate metal layer and a photo-resist film on the substrate provided with the source/drain metal pattern; patterning the photo-resist film to form a photo-resist pattern at an area to be provided with a gate metal pattern; forming the gate metal pattern using the photo-resist pattern as a mask; and patterning the organic insulating material and the organic semiconductor material using the photo-resist pattern and the gate metal pattern as a mask to form an organic gate insulating film and to form an organic semiconductor layer providing a channel between the source electrode and the drain electrode.