A display apparatus displays a three-dimensional graphical object. The display apparatus includes a projection device for producing an autostereoscopic projection image of the object. The object is displayed for a viewer such that the viewer has an improved three-dimensional impression from the representation. The display apparatus to this end has a specularly reflective and light-transparent combiner plate, and the projection device is configured to project the projection image onto the combiner plate such that for a viewer, viewing from a predetermined viewing direction through the combiner plate, the projection image appears as a mirror image on the combiner plate.