Image display function with mirror

The present invention, an image display device, 1/4-wave plate, the circularly polarized light reflective layer, and includes a front plate made of glass or plastic in this order, the circularly polarized light reflective layer comprises a cholesteric liquid crystal layer, the cholesteric liquid crystal layer is visible image display function mirror having a center wavelength of the selective reflection in the light area is provided. Image display function mirror of the present invention is capable of bright image display.