The heat is transferred through the thin substrate to the liquid crystal layer which results in {HEAD ~ a color change} in {TAIL ~ the liquid crystal} 
in
The heat is transferred through the thin substrate to the liquid crystal layer which results in { HEAD ~ a color change } in { TAIL ~ the liquid crystal }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL