▁ph osph or ▁screen . ▁ ▁Col ored ▁Display ▁ ▁The ▁color ▁mon itors ▁are ▁sometimes ▁called ▁R GB ▁mon itors , ▁because ▁they ▁accept ▁three ▁separate ▁signals ▁( red , ▁green , ▁and ▁blue ). ▁In ▁contrast , ▁a ▁mon och rome ▁monitor ▁can ▁display ▁only ▁two ▁colors ▁one ▁for ▁the ▁background ▁and ▁one ▁for ▁the ▁for eground . ▁Color ▁mon itors ▁implement ▁the ▁R GB ▁color ▁model ▁by ▁using ▁three ▁different ▁ph osph ors ▁that ▁appear ▁red , ▁green , ▁and ▁blue ▁when ▁activ ated . ▁By ▁placing ▁the ▁ph osph ors ▁directly ▁next ▁to ▁each ▁other , ▁and ▁activ ating ▁them ▁with ▁different ▁intens ities , ▁color ▁mon itors ▁can ▁create ▁an ▁un limited ▁number ▁of ▁colors . ▁In ▁practice , ▁however , ▁the ▁real ▁number ▁of ▁colors ▁that ▁any ▁monitor ▁can ▁display ▁is ▁controlled ▁by ▁the ▁video ▁adapter . ▁ ▁Mon itor ▁displays ▁types ▁include : ▁ ▁C RT ▁display ▁mon itors ▁ ▁T FT ▁( Th in - film ▁trans istor ), ▁ ▁flat ▁panel ▁ ▁L CD ▁( L iqu id ▁Cry stal ▁Display ) ▁ ▁O LED ▁ ▁LED ▁ ▁See ▁also ▁▁ ▁Input ▁Device ▁ ▁CPU ▁ ▁References <0x0A> </s> ▁Thomas ▁St ub bs ▁( ▁ 1 3 7 3 ) ▁was ▁an ▁English ▁Domin ican ▁chron ic ler . ▁ ▁Works ▁A ▁number ▁of ▁works ▁are ▁attributed ▁to ▁him ▁by ▁the ▁six teenth - century ▁literary ▁bi ograph ers , ▁but ▁the ▁only ▁one ▁that ▁appears ▁to ▁be ▁now ▁ext ant ▁is ▁his ▁Chron