A body trigger bias is imposed on {HEAD ~ the body} of the TFT to reduce {TAIL ~ its threshold voltage} for increasing the driving current 
to reduce
A body trigger bias is imposed on { HEAD ~ the body } of the TFT to reduce { TAIL ~ its threshold voltage } for increasing the driving current
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH