Patent ID: 7102163

Claim:
A semiconductor device comprising: a thin film transistor provided between an element to be driven which operates based on supplied power and a power supply line for supplying power to said element to be driven, for controlling the power supplied to said element to be driven; wherein the thin film transistor and corresponding element to be driven are electrically connected to each other by a wiring layer; the contact position between the wiring layer and the thin film transistor is placed to be distant from the contact position between the wiring layer and said element to be driven; said element to be driven is an emissive element which includes an emissive element layer between a first electrode and a second electrode and in said element to be driven, light is emitted by supplying charges from said first and second electrodes to said eniissive element layer; a contact hole is formed on an insulation layer which is formed above said wiring layer, said wiring layer being connected through the contact hole to said first electrode of said emissive element which is formed on top of said insulation layer and covering said contact hole; at least a portion of the contact hole region and at least a portion of said first electrode are filled with a flattening layer; and said emissive element layer and said second electrode are formed above said flattening layer.