1. A projection display comprising an imaging system that is implemented to generate individual images in a distribution of sub-areas of an imaging plane of the imaging system; and a multi-channel optics that is configured to map one allocated sub-area of the imaging system each per channel, such that the mapping of the individual images is superimposed to an overall image in a projection surface which is a non-planar free-form surface or tilted with respect to the imaging plane, wherein the imaging system is implemented as a fixed mask fixedly forming the individual images at the sub-areas so that the projection surface is located at a fixed position relative to the projection display, with the fixed mask being configured so that the individual images are mutually distorted relative to each other such that or the imaging system is implemented as a digital imaging system configured to reproduce versions of an input image to be displayed as the individual images, the imaging system being configured so as to mutually distort the images relative to each other in a fixed manner so that the projection surface is located at a fixed position relative to the projection display, and such that or the imaging system is implemented as a digital imaging system configured to reproduce versions of an input image to be displayed as the individual images, the imaging system being configured so as to mutually distort the images relative to each other in a manner adaptive to a relative position of the projection surface relative to the projection display such that constellations of points in the individual images, each superimposed in a respective common point in the overall image by the multi-channel optics, differ depending on what distance the respective common point in the overall image has to the multi-channel optics.