1. A display apparatus with a camera, comprising: a display element in which a plurality of display pixels are arranged on a transparent substrate; a plurality of image-taking lenses which are arranged on the transparent substrate; a plurality of display lenses which emits light from the display pixels to an object side and are arranged on the transparent substrate; a photoelectric conversion element which photoelectrically converts object images into image data, wherein the same object images are formed on different areas of the photoelectric conversion element by each of the plurality of image-taking lenses; and an image combining section which combines the plural image data, which are output from the photoelectric conversion element by photoelectrically converting the same object images which are formed on the different areas, to generate one image data wherein the display pixel includes a black matrix section, and the black matrix section of the display pixel adjacent to the image-taking lens has a knife-edge form to prevent occurrence of a ghost.