Light your room with Jonas Samson's wallpaper, really. This designer has come up with a light-emitting wallpaper . With this high-tech wallpaper it’s possible to use a two-dimentional flat surface as light source instead of a 3D object. As long as the wallpaper is turned ‘off’, it is indistinguishable as a source of light. Instead, it is just what it appears to be: wallpaper.