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