{TAIL ~ The dual shift register} 1, wherein gate and drain terminals of the first active switching element are connected with {HEAD ~ the first AC voltage line} 
{ TAIL ~ The dual shift register } 1 , wherein gate and drain terminals of the first active switching element are connected with { HEAD ~ the first AC voltage line }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD