Patent ID: 9411161
Filing Date: 2016-08-09
CPC Classification: G02B,G03B

Claim Text:
1. Display system comprising an image projector and an associated display screen, the said display system designed to be used by an observer situated at a given location, the said display screen comprising two transparent and substantially parallel faces, the said display screen comprising, on at least one of its transparent faces, a plurality of regularly distributed scattering patterns, wherein, since the image projector illuminates the screen under a plurality of angles of incidence determined by the position and the size of the display screen, the said angles of incidence being centred on a mean angle of incidence, the optical patterns comprise at least one scattering surface oriented in such a manner as to scatter the light rays having at least the mean angle of incidence in one or more directions corresponding to the said given location of the observer, the patterns being holes formed in one of the two transparent faces, each hole comprising a scattering and opaque part turned towards the mean angle of incidence.