Patent ID: 9202418
Filing Date: 2015-12-01
Classification: G02B,G03B,G09G,H04N

Abstract:
1. A light engine for a projection system, comprising: a color splitting-converging prism having a plurality of color sub-assemblies and respective color light valves; at least one additional light valve in series with at least one of said color sub-assemblies and respective color light valves; and a module for converting source pixel data to color bit planes and generating a further bit plane from said color bit planes, said color bit planes driving said respective color light valves and said further bit plane driving said additional light valve, wherein the timing of switching the additional light valve and respective color light valves is related so as to prevent unpredictable color and intensity variations and image artifacts, wherein said module includes an OR gate for combining said color bit planes and outputting a white bit plane such that said additional light valve is on whenever any of said respective color light valves is on and said additional light valve is off whenever all of said respective color light valves are off.