Patent ID: 8625182

Claim:
A method of displaying an image holographically, the method comprising displaying a hologram on pixels of a spatial light modulator (SLM) and illuminating said SLM such that said image is displayed in pixels of a display surface on which said hologram is displayed, and wherein the method further comprises subdividing said display surface into a plurality of spatially interlaced regions, displaying holograms for each of said interlaced regions of said display surface sequentially at different times such that in an observer's eye said interlaced regions integrate to give the impression of said image and such that interference between adjacent pixels of said display surface is reduced, and calculating a hologram to display a said interlaced region of said display surface by calculating an input hologram to display pixels in said display surface at a reduced resolution and wherein said hologram displaying comprises displaying a plurality of substantial replicas of said input hologram simultaneously on said SLM.