Cinematographic, optical and physical apparatus for generating virtual images, 3D images, special effects, animation and displaying computer generated data, images, media, films and holograms, namely, projection screens, video projectors, hard disk players, projectors, LED screens, plasma screens, cathode ray screens, liquid crystal display screens, opaque projection screens to reflect projected images, clear plastic, polymer and glass screens for the projection of 3D images and truss frames ...