Patent ID: 9046734
Filing Date: 2015-06-02
Classification: G02F,G03H,H04N

Abstract:
1. A light modulator device for a display to represent a 3D scene which is controllable in a 3D mode and in a 2D mode, with a controllable spatial light modulator and at least one controllable diffraction device, said components being controllable by a control unit, where an observer window is generable at varying eye positions using coherent light beams, wherein the diffraction device comprises electrodes and a controllable material to which a prism function and a diffusion function are controllably encodable; or to which a lens function and a diffusion function are controllably encodable; or to which a prism function, a lens function and a diffusion function are controllably encodable at least in one dimension as a diffraction grating with a phase profile, where the diffraction grating that represents the diffusion function comprises phase shifts which are controlled by variable frequencies depending on a distance to a detected eye position for which the defined size of the observer window is controllable for an above-mentioned representation mode.