An individually controllable tiny element of an electronic display system is a pixel. At various brightness levels, this pixel can be turned on or off. Every sign has a different number of pixels and the higher the member of pixels, the better the resolution of the image. One pixel can consist either of one LED or several LEDs of the same color or of multiple colors. A good quality signage will consist of three LEDs per pixel and the colors would most often be red, blue and green.