HOLOGRAPHIC DISPLAY APPARATUS AND HOLOGRAPHIC DISPLAY METHOD FOR PROVIDING ENHANCED IMAGE QUALITY

摘要

A holographic display apparatus (100) includes: a light source (110) configured to emit light; a spatial light modulator (120) configured to sequentially display hologram patterns for modulating the light to thereby sequentially diffractively reproduce frames of hologram images based on the hologram patterns; and a controller (140) configured to provide hologram data signals to the spatial light modulator, the hologram data signals being used to sequentially generate the hologram patterns. The controller is configured to further provide, to the spatial light modulator, diffraction pattern data signals for forming periodic prism grating diffraction patterns for adjusting transverse locations of the hologram images, wherein the periodic prism grating diffraction patterns move on the spatial light modulator along a predetermined direction for each of the frames.