On the other hand, when {HEAD ~ the input terminal} receives a signal varying from high to low in voltage, the bias generated by the body trigger circuit is imposed on {TAIL ~ the P type and N type TFT devices}, respectively 
On the other hand , when { HEAD ~ the input terminal } receives a signal varying from high to low in voltage , the bias generated by the body trigger circuit is imposed on { TAIL ~ the P type and N type TFT devices } , respectively
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH