Patent ID: 7414267

Claim:
An active matrix display device including a plurality of pixels, each pixel comprising: a substrate; a first conductive layer and a second conductive layer formed on a same insulating surface over the substrate; a first insulating film formed over the substrate to cover at least the first and second conductive layers wherein the first insulating film has at least one opening to expose at least a portion of the second conductive layer; a second insulating film formed over the first insulating film wherein the second insulating film covers an exposed portion of the second conductive layer in the opening of the first insulating film; a semiconductor film having at least a channel region of a thin film transistor, the semiconductor film formed over the first conductive layer with the first and second insulating films interposed therebetween; a capacitor electrode formed over the exposed portion of the second conductive layer with the second insulating film interposed therebetween; and a capacitor comprising the second conductive layer, the capacitor electrode and the second insulating film interposed therebetween.