Display systems, such as projection type devices, may include one or more optical modulators. The modulators may each include a plurality of reflective devices, such as movable micromirrors, wherein each micromirror may correspond to a pixel or a sub-pixel of the modulator. A display system may function by reflecting light from pixels or sub-pixels of the one or more modulators in accordance with the individual positions of the pixels or sub-pixels. The multiple modulators may be mechanically aligned with one another to converge the multiple modulated images into a single, final image. This mechanical alignment process may be time consuming and increase the cost of a multiple modulator system.