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