light emitting wallpaper

light emitting wallpaper by jonas samson makes a two dimensional flat wall surface as light source. when the wallpaper is turned 'off' it appears to be just wallpaper (not a distinguishable source of light)

"The wallpaper's patterns consist of embedded lights, and the transition effects are achieved through controlling individual pixels (LEDs). One can turn off the lighting, making the wallpaper a standard wall ornament, or have it turned on and enjoy the transition of multiple patterns"