Powder ZnS:Cu,Br;ZnS:Mn,Cu;(Zn,Cd)S:Mn,Cu AC electroluminescencent phosphors were made by sane way as long living phosphors.The darkroom illumination new light source and display device are consistent of emitting layer and a colour filter which made by organic pigment.The emission spectra of darkroom illumination new light source and display device are safe for film factory producting black and white panchromatic film printes,colour film printes,x ray film printesand CT film printes.