So in the end what is the LED LCD monitor instead. In fact, what we now call LED LCD display, not an accurate name for it just for the convenience of the media and netizens, and to add to short. Its full name should be the LED backlight LCD display. According to the principle of a liquid crystal display, liquid crystal display is refracted by the liquid crystal molecules of the backlight light to show different colors, the liquid crystal molecules themselves are not luminous, mainly through the illumination of the backlight to achieve. Currently, the vast majority now are LCD backlight CCFL (that is, we often say that the cold cathode ray tube), and its principle is similar to our fluorescent tubes. The LED backlight is used instead of a new type CCFL backlight.
Since it is an alternative to CCFL backlight, LED backlight CCFL backlight Fortunately, in the end than what? The first is more uniform light. Since CCFL backlight lamp or a U-shaped strip is usually, it is prone uneven luminous problem, while the LED backlight because of the different principles, and its light distribution, do not worry about the uneven luminous problem.
Secondly, longer life. Ordinary CCFL backlight life of 50,000 hours, while the LED life is more than 100,000 hours. Therefore, the use of LED backlight LCD monitor or LCD TV in the use of a longer time after the backlight brightness attenuation better than CCFL backlight.
Third, better environmental protection. With CCFL backlight, will never be able to solve the "Mercury" This toxic substances, which is determined by its luminous principle. Take a look at our daily white lamp will know twelve. We normally use fluorescent tubes contain "mercury" element, and the principle is similar to fluorescent tubes CCFL backlight and naturally can not solve this problem. However, LED will not have a problem. Another point, LED backlit display than the CCFL backlight display more energy efficient, with 21.6-inch display, for example, LED backlight LCD display power consumption is about CCFL backlight display Liu Cheng.