{TAIL ~ Chemical bonds} are formed between {HEAD ~ the alignment layers} and the adjacent liquid crystal layers so that the liquid crystal layers are bonded to the alignment layers in order to increase resistance to mechanical damage 
{ TAIL ~ Chemical bonds } are formed between { HEAD ~ the alignment layers } and the adjacent liquid crystal layers so that the liquid crystal layers are bonded to the alignment layers in order to increase resistance to mechanical damage
TAIL TAIL TAIL TAIL TAIL TAIL 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 OTH OTH OTH OTH