Abstract: A single panel projection system that comprises an illumination system which produces spatially separated color illumination segments. A display panel having at least two segments displays corresponding color information, which is aligned with the corresponding color illumination segments. A projection lens system combines the at least two segments together into a full color picture by using an angular-color-mixing technique. The system comprises only a single panel, therefore the system cost is lower than that of other three panel systems. The system has no moving color filter, so color artifacts related to color sequential method are eliminated. Color energy is distributed to three color segments at any time, therefore the light efficiency is high.