Abstract: A display device (1, 1?, 1?, 1??, 1IV, 1V) comprises at least one transparent or translucent display layer (5, 5?, 5?), and at least one modifiable layer comprised of a film or foil layer, configured and adapted to have a degree of transparency modified depending on an input signal applied thereto and placed at least partly in front and/or behind said display layer. A door or cover plate (17, 17?, 17?) may comprise a display device (1, 1?, 1?, 1??, 1IV, 1V) as disclosed herein. Furthermore, a cooler (21, 21?) may comprise a display device (1, 1?, 1?, 1??, 1IV, 1V) and/or a door or cover plate (17, 17?, 17?) as disclosed herein.