{HEAD ~ The display apparatus} 22, wherein said oxysulfide is {TAIL ~ yttrium oxysulfide}, and said luminescent center substance is europium 
{ HEAD ~ The display apparatus } 22 , wherein said oxysulfide is { TAIL ~ yttrium oxysulfide } , and said luminescent center substance is europium
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH