A projector has plural liquid crystal light valves each of which modulates color light, a cross dichroic prism which combines the color lights modulated by the plural liquid crystal light valves, and a projection lens which projects the light combined by the cross dichroic prism. The projector includes: a holding unit which holds the liquid crystal light valve; and a supporting member having a body unit supported to the cross dichroic prism and first plate-like portions which protrude from the body unit and support the holding unit. The first plate-like portions are inclined from a vertical plane including an optical axis of the liquid crystal light valve.