Patent ID: 7314785
Filing Date: 2008-01-01
Classification: H01L

Abstract:
1. A manufacturing method of a display device comprising: forming a thin film transistor over a first substrate; forming an interlayer insulating film over the thin film transistor; removing the interlayer insulating film selectively so that at least one opening is formed in the interlayer insulating film and a side surface of the interlayer insulating film has a tapered shape at an edge of the first substrate; first doping an impurity element of one conductivity to the opening portion and the side surface of the interlayer insulating film; forming a first electrode electrically connected to the thin film transistor over the interlayer insulating film; forming an insulating layer covering an edge of the first electrode; second doping an impurity element of one conductivity to the first electrode and the insulating layer; forming a layer including an organic compound over the first electrode; and forming a second electrode over the layer including an organic compound, wherein at the first doping step, a high concentration impurity region is formed in a semiconductor layer of the thin film transistor.