Patent ID: 8482682

Claim:
A display system comprising: a screen in which, in an area on which invisible light is incident, a scattering state where visible light is scattered and a transmission state where visible light is transmitted are switched; an image projection system to project an image of the visible light onto the screen; and an invisible light projection system to project the invisible light onto the screen and to cause an area of the screen onto which a desired portion of the image is projected to have the scattering state, wherein the screen includes: a pair of transparent electrode; a polymer-dispersed liquid crystal layer arranged between the pair of transparent electrodes; and a photoconductive layer which is arranged between at least one of the pair of transparent electrodes and the polymer-dispersed liquid crystal layer and impedance of which is changed by incidence of the invisible light, wherein the screen includes a light absorption layer to absorb a complementary light which has a complementary color in subtractive color mixing with respect to a color light absorbed in the photoconductive layer.