A display apparatus includes: a substrate; a strip-like light source placed at ends in a width direction of the substrate; and a light guide plate mounted in front of the substrate. A display medium is disposed in front of the light guide plate. The substrate includes a main body and a pair of edge plates that cover the front surface of both ends in the width direction. Light source mounts formed separately to the substrate and the edge plates have a strip-like light source mounted thereupon and are fixed inside the insertion channels. The light guide plate is mounted with both ends inserted inside the insertion channels so that light from the strip-like light source is incident from end surfaces of the light guide plate.