Patent ID: 6794675
Filing Date: 2004-09-21
Classification: H01L

Abstract:
An organic electroluminescence device comprising:an organic electroluminescence element and a thin film transistor which are formed on a substrate; said organic electroluminescence element having at least an organic emissive layer disposed between an anode and a cathode; said thin film transistor controlling a current flowing to said organic electroluminescence element; said thin film transistor having an active layer made of a semiconductor material; a refractory metal layer connecting a source region or drain region of said thin film transistor to said anode of said organic electroluminescence element, said refractory metal layer, one of said source region and drain region, and said anode being laminated in a thickness direction of said substrate; and a planarization insulating film covers said refractory metal layer, wherein said anode is formed on said planarization insulating film, a contact hole is formed through the planarization insulating film, and said anode partially extends to said contact hole and said anode is in contact with said refractory metal layer.