US Patent 11187911 Projection display with representation in multiple display planes

A projection display for providing virtual display images on a plurality of display planes which are offset to one another, includes a projection unit for producing a projection beam; and an optical imaging element which is designed to direct the projection beam onto a combination surface and to image, depending on the projection beam, the virtual display images into the plurality of display planes. The projection unit has a plurality of transparent display elements which are arranged so as to be spaced apart and one after the other along the beam path of the projection unit.