A pixel is a unit used to compute a digital image, like a photograph of a photograph, and a digital image has a continuous, dense tone. If the image is magnified several times, it will be found that these continuous tones are actually made up of a number of small square dots of similar color, which are the smallest units of pixels that make up the image, which can be displayed on the screen as a single staining point.
According to the principle of color, know Red R, Green G, blue B is called the three primary colors. These three colors can be combined to get any color from black to white. LED display category, there are monochrome display, two-color display, Full-color display. Monochrome is relatively simple, just select any one of the three colors to achieve monochrome display. In practical application, the red LED lamp is more. In this case a red LED is a pixel.
Two-color display and monochrome display, as long as the choice of any of the three colors in the two color can be achieved double color. In practical application, choose red and green more. When red and green are lit, yellow can be achieved. Therefore, the two-color display can achieve red, green, yellow 3 kinds of color.
Full color LED display because to show a variety of colors, so need to be able to show from black to white between the different colors. Therefore, Full-color LED display needs red, green, blue 3 lights together to form a pixel, to show a variety of colors. Full-color LED display, but also divided into real pixel display and virtual pixel display. Both have different display techniques, so the pixel points are not the same.
Virtual display using a virtual pixel technology, that is, using led multiplexing technology, the same led light-emitting tube, can be used adjacent led light-emitting tube 4 times combination (down, down, left, right combination)
Indoor Full-color display, mainly the unit plate. The unit board is composed of a triple-in-one lamp, which encapsulates 1 red, 1 green, and 1-blue LED lights to form a pixel point.