the retardation film 552 which has a phase difference of u03bb 4 respectively converts the circularly polarized light into the linearly polarized light or the linearly polarized light into the circularly polarized light the liquid crystal layer 510 is interposed between the upper substrate 550 and the lower substrate 500 and functions as an optical shutter for changing a direction or a phase of the light that is colored by the clc color filters 200 meanwhile as mentioned before the clc color filters 200 are color filters made of the cholesteric liquid crystal and the clc color filters 200 selectively reflect and transmit a certain wavelength of the light moreover the black matrix 152 and the clc polarizer 150 that are also made of the cholesteric liquid crystal control the broadband wavelength of the light the light transmitting or light reflecting characteristic of the black matrix 152 is different from that of the clc polarizer 150 namely the black matrix 152 reflects the left handed circularly polarized light if the clc polarizer 150 reflects the right handed circularly polarized light and vice versa in other words the black matrix 150 and the clc polarizer 152 reflect or transmit the oppositely circularly polarized light hereinafter the reference will now be made in detail to illustrate a second embodiment of the present invention an example of which is shown in the accompanying drawing fig6 the second embodiment of the.