SPARSE SOURCE ARRAY FOR DISPLAY PIXEL ARRAY ILLUMINATION WITH ROTATED FAR FIELD PLANE

摘要

A pixel array display system (100) including an illumination source (102) of discrete emitters (104) with uniform emitting areas, a separate collimator (110) in front of each emitter, and a condenser (112) in front of said collimators which focuses collimated light from the emitters onto the pixel array (114). The pixel array display system does not include a light homogenizing optical element such as a light pipe. Each emitter (104) is focused onto at least 75 percent of the pixels (116). A portion of the emitters which provide collimated light cones proximate to a modulated light optical cone from the pixel array may be provided reduced power in a high contrast operating mode.