A layer 15 of {TAIL ~ a cholesteric liquid crystal material} is deposited on the side of {HEAD ~ substrate} 15 opposite to that on which the conductive layer or patterns 10 and 10 are deposited 
A layer 15 of { TAIL ~ a cholesteric liquid crystal material } is deposited on the side of { HEAD ~ substrate } 15 opposite to that on which the conductive layer or patterns 10 and 10 are deposited
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH