The invention discloses a device for displaying different independent images for eyes at different positions by using a same screen (lens). The device comprises a plurality of projectors, a convergentlens (convex lens or Fresnel lens) and a reflector (optional). The projectors are placed outside the focal length of the lens, the parameters of the lens and the parameters of the projectors can be adjusted according to different viewing positions and pupil distances, so that the light emitted by each projector array is converged nearby each eye of a viewer, and the independent viewing of the images projected by each projector in the projector array is achieved. According to the technology, the projection display picture is high in definition, high in brightness and ultra-low in power, and two-dimensional/three-dimensional display modes can be switched.