DEVICE AND METHOD OF SCANNING AN IMAGE IN A PROJECTION SYSTEM

摘要

The present invention relates to the field of projection-type image display devices allowing scanning of an image and a scanning method. The device comprises a light source (1) for emitting a white light luminous flux in one direction. Modulating means (2) comprise light valves for modulating lights contained in luminous fluxes and thus produce an image comprising pixels. Projection-optical means (3) are provided for projecting said image on a screen. The image display device further comprises scanning means (4) arranged to scan said image in such a way that each modulated pixel illuminates a multitude of positions within a unit cell having a predetermined area size.