A projector includes a first image formation unit including a first color separation system, first to third light modulation elements, and a first color combining system; a second image formation unit including a second color separation system, fourth to sixth light modulation elements, and a second color combining system; a polarization combining system that combines an image light beam outputted from the first image formation unit and an image light beam outputted from the second image formation unit; and a projection system that projects the image light beam that has been combined in the polarization combining system.