a two panel type color display device is disclosed , comprising a buffer memory storing rgb information corresponding to one frame — herein , the rgb information contains the intensity of red , green , and blue colors of × pixels constituting one frame —; an image processor accessing the rgb information stored in the buffer memory and extracting therefrom fixed color image information corresponding to a fixed color light and a plurality of variable color image information corresponding to a plurality of variable color lights ; a color - fixed panel modulating the fixed color light according to the fixed color image information and outputting the modulated fixed color light ; a color - variable panel modulating the corresponding variable color lights according to the plurality of variable color image information and outputting the modulated variable color lights sequentially ; a fixed color light source providing the fixed color light to the color - fixed panel ; a plurality of variable color light sources providing the variable color lights to the color - variable panel ; a color synthesizing part generating a synthesized signal combined the modulated fixed and variable color lights ; and a projection part scanning the synthesized signal in a predetermined direction on a screen .