LED light is using light emitting diodes as a backlight source. Light-emitting diodes by the doped semiconductor material made of several layers of very thin, with a layer of excess electrons, another is the lack of electrons to form positively charged holes, when the current through the work and combination of electrons and holes, the excess places light energy form of radiation is released. By using different semiconductor materials may be obtained in different emission characteristics of light emitting diodes.
Color LED light technology advantage is outstanding, it has become widely accepted in the display manufacturing. Now-obsolete CCFL (cold cathode backlighting) technology because of their spectrum constraints, more restricted color gamut, the best performance is only about 70% NTSC color gamut, higher color gamut effect will have to pay a more expensive cost.
And there are many LED light supplier China, many companies want to have more advanced business in there. Currently there is still a large part of the display using the traditional CCFL backlight, but at the moment compared to LED display price advantage has been getting smaller and smaller, now a popular display on the market mainly in two techniques, cold cathode fluorescent tubes, others species is the LED backlight technology. But many people still confused LCD cold cathode fluorescent tubes and LED backlight technology, which is obviously not true.
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