| LED lighting is known as fourth-generation light source or green light source, with energy saving, environmental protection, long life, small size and other characteristics, can be widely applied in various directions, display, decoration, backlight, general lighting and night in areas such as cities. In recent years, some of the world's economically developed countries around the development of LED technology engaged in a fierce competition. The United States in 2000 from 500 million U.S. dollars investment from the implementation of "National Semiconductor Lighting Plan", the European Union also announced in July 2000 to start a similar "Rainbow plan." China's Ministry of Science and Technology in the "863" Project under the auspices of the first time in June 2003 to plan the development of semiconductor lighting.
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