LED screen is definitely not a common LED backlight, LED display is also known as electronic display or floating word. by LED dot Matrix and LEDPC panel, through the red, blue, white, green LED lighting to display text, images, animations, videos, content. According to different occasions, different regulations, such as the general billboard these mobile calligraphy, by the Flash animation production needs, saved in the display of the memory card, and then by the technical method to show, according to different needs at any time change, the parts of the components are in the display device modular structure.
Traditional LED displays are usually made up of display modules, control systems and power supply system. LED luminescent color and luminous efficiency and production materials and related LED lighting ball process began with all the blue, but later together with the fluorescent body, according to the different needs of users to adjust the different light color, widely used red, green, blue, yellow 4.
Because the LED operating voltage is low, can actively glow and has a certain brightness, brightness and voltage regulation, itself and impact resistance, vibration resistance, long life (100,000 hours), so in the large display equipment, there is no other display mode and LED display matching. Red and green LED chips or lights are made together as pixels, showing so-called black and white or monochrome screens and three or two color screens, red, green and blue LED chips or discharge lights together as a pixel display called a three-color screen or full color screen. If only one color is called monochrome pixel size indoor LED screen is generally 2-16 mm, is often used to make a variety of different colors of LED core to a package, outdoor LED large screen pixel size,
Mainly 6 mm-31.5, each pixel by several various monochrome LEDS, which is said to be pixel tube, two-color pixel tube is generally made up of two red 1 green three-color pixel tubes red one green, blue composition 1 ordinary products. Whether to produce monochrome, two-color or tri-color screens with LEDS, the image needs to make up the pixel of each LED luminous brightness must be able to adjust the fineness of the adjusted grayscale to be displayed. The higher the level, the more delicate the grayscale image display, the richer the color, the corresponding display control system is also more complex. General level 256 grayscale image, color transition has been very soft, and 16 grayscale color image, color transition line is very obvious.
Therefore, the demand for color LED display is doing 256-4096 gray. Through a wide range of attention and rapid development of LEDS, this is its own advantages that cannot be separated. LED extremely broad prospects for development, is moving towards higher brightness, higher climate resistance, higher luminous density, higher luminous uniformity, reliability, panchromatic direction.