LED backlight refers to the use of LED (light-emitting diode) as a liquid crystal display backlight, and LED-backlit display is only the LCD backlight from the traditional CCFL cold light tube (similar to fluorescent) over to the LED (light-emitting diode). The imaging principle of liquid crystal can be simply understood as the application of voltage outside the liquid crystal molecules will be deflected like a gate to block the light emitted by the backlight, and then the light projection in different colors of color filters to form images.
LED display is a microelectronics technology, computer technology, information processing in one, with its colorful, wide dynamic range, high brightness, long life, stable and reliable, etc., become the most dominant public display media, at present, LED Display has been widely used in large square, commercial advertising, sports venues, information dissemination, press release, securities trading, to meet the needs of different environments.
LED display is a control by the semiconductor light-emitting diode display, the approximate look is by a lot of usually red light-emitting diodes, light off the light to display the characters. Used to display text, graphics, images, animation, market, video, video signals and other information display screen.