Chemical bonds are formed between 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 {HEAD ~ resistance} to {TAIL ~ mechanical damage} 
to
Chemical bonds are formed between 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 { HEAD ~ resistance } to { TAIL ~ mechanical damage }
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 OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL