Patent ID: 7208766

Claim:
A display device comprising: a substrate; a first light blocking conductive layer and a second light blocking conductive layer formed on a same insulating surface over the substrate; an active layer comprising at least a channel region and source and drain regions of a thin film transistor, the active layer formed over the first light blocking conductive layer with a first insulating layer interposed therebetween; a gate insulating film formed over the active layer; and a gate electrode formed over the active layer with the gate insulating film interposed therebetween; a capacitor electrode formed over the second light blocking conductive layer with a second insulating layer interposed therebetween; a capacitor comprising the second light blocking conductive layer, the capacitor electrode and the second insulating layer interposed therebetween; an interlayer insulating film formed over the thin film transistor and the capacitor; and a pixel electrode formed over the interlayer insulating film wherein the pixed electrode is electrically connected to one of the source and drain regions of the thin film transistor.