The phase difference, which the reflective liquid crystal display device in a black display state of the reflective liquid crystal display apparatus provides to {HEAD ~ the diffracted light} occurring at {TAIL ~ the reflective liquid crystal display device}, can be negative or zero 
The phase difference , which the reflective liquid crystal display device in a black display state of the reflective liquid crystal display apparatus provides to { HEAD ~ the diffracted light } occurring at { TAIL ~ the reflective liquid crystal display device } , can be negative or zero
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 HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH