Display device with a holder that can be fitted on the head of a user, an image-generating module which generates an image and is secured to the holder, and an imaging optical system (3, 4) which is secured to the holder and which has a spectacle lens (3, 4) and which, when the holder is fitted on the head, images the generated image such that the user can perceive it as a virtual image, wherein the spectacle lens comprises a curved front side and a curved rear side, and, when the spectacle lens (3, 4) is viewed from above, a coupling-in section in an edge area of the spectacle lens (3, 4) and a coupling-out section spaced apart therefrom, said coupling-out section lying in a central area of the spectacle lens (3, 4); wherein the spectacle lens (3, 4) guides the generated image, which is coupled into the spectacle lens (3, 4) via the coupling-in section of the spectacle lens (3, 4), in the spectacle lens (3, 4) by reflections on the front side and/or the rear side as far as the coupling-out section and couples it out of the spectacle lens (3, 4) via the coupling-out section, and wherein the spectacle lens (3, 4) provides a predetermined optical imaging function which is predefined by a predetermined curvature profile of the front side and a predetermined curvature profile of the rear side, characterized in that, in order to reduce vignetting occurring when the generated image is guided via the coupling-in section through the spectacle lens (3, 4) as far as the coupling-out section, the curvature profile of the rear side in the edge area differs from the corresponding predetermined curvature profile of the rear side in the edge area such that there is a greater thickness of the spectacle lens (3, 4) in the edge area in comparison with the thickness in the edge area that would result due to the predetermined curvature profile, wherein the spectacle lens (3, 4) has the greater thickness only in the edge area, and wherein the differing curvature profile is designed such that an imaging error of the spectacle lens, which occurs when the generated image is guided, is corrected. a holder that can be fitted on the head of a user, an image-generating module which generates an image and is secured to the holder, and an imaging optical system (3, 4) which is secured to the holder and which has a spectacle lens (3, 4) and which, when the holder is fitted on the head, images the generated image such that the user can perceive it as a virtual image, wherein the spectacle lens comprises a curved front side and a curved rear side, and, when the spectacle lens (3, 4) is viewed from above, a coupling-in section in an edge area of the spectacle lens (3, 4) and a coupling-out section spaced apart therefrom, said coupling-out section lying in a central area of the spectacle lens (3, 4); wherein the spectacle lens (3, 4) guides the generated image, which is coupled into the spectacle lens (3, 4) via the coupling-in section of the spectacle lens (3, 4), in the spectacle lens (3, 4) by reflections on the front side and/or the rear side as far as the coupling-out section and couples it out of the spectacle lens (3, 4) via the coupling-out section, and wherein the spectacle lens (3, 4) provides a predetermined optical imaging function which is predefined by a predetermined curvature profile of the front side and a predetermined curvature profile of the rear side, characterized in that, in order to reduce vignetting occurring when the generated image is guided via the coupling-in section through the spectacle lens (3, 4) as far as the coupling-out section, the curvature profile of the rear side in the edge area differs from the corresponding predetermined curvature profile of the rear side in the edge area such that there is a greater thickness of the spectacle lens (3, 4) in the edge area in comparison with the thickness in the edge area that would result due to the predetermined curvature profile, wherein the spectacle lens (3, 4) has the greater thickness only in the edge area, and wherein the differing curvature profile is designed such that an imaging error of the spectacle lens, which occurs when the generated image is guided, is corrected.