Patent ID: 7436463

Claim:
A display device comprising: a substrate; a thin film transistor formed over the substrate; a first insulating film formed over the thin film transistor, the first insulating film having a first contact hole; an electrode formed over the first insulating film, the electrode being in contact with one of a source region and a drain region of the thin film transistor through the first contact hole; a second insulating film formed over the electrode, the second insulating film comprising silicon nitride and having a second contact hole; a capacitance electrode formed over the second insulating film; a third insulating film formed over the capacitance electrode, the third insulating film having a third contact hole; an electromagnetic shielding pattern formed over the third insulating film; a fourth insulating film formed over the electromagnetic shielding pattern, the fourth insulating film having a fourth contact hole; and a pixel electrode formed over the fourth insulating film, the pixel electrode being in contact with the electrode through the second contact hole, the third contact hole and the fourth contact hole, and being in contact with the second insulating film, wherein the second contact hole, the third contact hole and the fourth contact hole are overlapped with the first contact hole.