A Unipixel display consists of a glass or plastic backplane with thin-film transistors on it, which control individual pixels. Light from LEDs (not pictured here) enters the back plane from the edge where it is trapped. A thin membrane, called a TMOS Opcuity film, is set on top of the backplane, with an air gap in between. When the microstructures on the membrane come in contact with the backplane, the light is released and directed toward the viewer.