forming a source wire of a driving circuit and {HEAD ~ a gate wire} of the pixel portion over {TAIL ~ the third insulating film} 
forming a source wire of a driving circuit and { HEAD ~ a gate wire } of the pixel portion over { TAIL ~ the third insulating film }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL