The present invention provides an image projection system implemented with a spatial light modulator (SLM) to modulate an illumination light projected from a light source wherein said SLM comprising a first conductive layer to wire and function as a bit line; a second conductive layer to wire and function as a word line; and a first conductive and second conductive capacitor layers functioning as a capacitor wherein the bit line is wired along a direction crossing the word line and the capacitor is disposed in parallel with the bit line.