To provide a color display device and a color organic EL(electroluminescence) display device having satisfactory chromacity by performing the color mixture of light emission in a correct ratio.

In the organic EL display device of a passive matrix system, currents Irg, Irb having a prescribed ratio are generated in current mirror circuit 32, 33 from the luminance signal current Iinr of red and the color mixture of the light emission of green color and the light emission of blue color is performed in the prescribed ratio to the light emission of red color based on an output current Ioutr by adding respectively these currents Irg, Irb to the current Igg based on the luminance signal current Iing of green and the current Ibb based on the luminance signal current Iinb of blue.