LED backlight LED as the LCD backlight, LED backlit display LCD display backlight source is traditional CCFL cold cathode fluorescent tube (similar to fluorescent lamps) transition to LED (light emitting diode). LCD imaging principle can be understood as the external voltage is applied to the liquid crystal molecules are deflected just like a gate camel barrier backlight emits light permeability, thus the light projected on the color filters of different colors to form the image display led.
Backlight module transition from CCFL to LED Lights can bring many benefits, allows more uniform brightness of the display screen, lower power consumption, can be more lightweight and stylish appearance. However, commonly used in the market is a W-LED (white LED) backlight, in fact, this backlight is only the luminous components replaced. Enhance display very weak and did not even upgrade. LCD display to enhance significantly RGB-LED (tri-color LED) to enhance the display effect is more obvious, but high production costs, and therefore be applied to high-priced LCD TV. Merchant said LED display with white LED backlight display products, and ordinary liquid crystal display is the difference between the change of the backlight.
LED display is set in one of the micro-electronics technology, computer technology, information processing, its colorful, wide dynamic range, high brightness, long life, stable and reliable work, etc., become the most advantage of the public media, LED The display has been widely used in large squares, commercials, sports venues, the dissemination of information, news releases, and securities transactions, to meet the needs of different environments display led.
LED display is a way through the to control semiconductor light-emitting diode display probably look from many usually red light-emitting diodes, by the bright lights off to show character. The display screen is used to display a variety of information, text, graphics, images, animation, quotes, video, video signal display led.
Along with the self-luminous OLED display without backlight, high contrast, thin thickness, wide viewing angle, fast response, can be used for a flexible panel, wide temperature range, the structure and the process is relatively simple, excellent characteristics, is considered to be emerging application technology for the next generation of flat panel displays.