Aspects of the invention can provide a display apparatus using a transparent EL element that can be viewed by a viewer from both sides of the light-emitting surface of the EL element, wherein the display apparatus displays clearly visible images. The display apparatus can include a sheet composed of an EL element having a light-emitting layer interposed between two opposing transparent electrodes. A light-emitting element emitting light from both sides of the sheet can be interposed between a pair of transparent substrate. A pair of polarizers arranged so that their polarization axes intersect can also be disposed on light-emitting surfaces of the light-emitting element.