Highlight the advantages of popular LED lighting prospects can be expected

LED light-emitting diode, a semiconductor device. It is used as luminescent materials using solid semiconductor chips in the semiconductor carrier occurs through release of excess energy complex caused by photon emission, directly emit red, yellow and blue, green, orange, purple, white light. LED lighting products is the use of LED as a light source to create the lighting equipment.

LED is generally known as the fourth generation light source or green light, has the characteristics of high energy saving, environmental protection, long life, small size, multiple changes, can be widely applied in various directions, display, decoration, Bei Guangyuan, general lighting and city night scene etc..

In energy efficiency, LED DC drive, ultra low power (single 0.03-0.06 Watt) etc., the electro-optical power conversion close to 100%, the same lighting effect than traditional light energy saving more than 80%, a 50 Watt energy-saving lamp brightness can be comparable with the high-pressure sodium lamp 300 to 400 watts, the light of life increase more than 10 times, while electricity to reduce nearly 9. In addition, there are people who call the LED light source as a long life lamp, which means that it will never go out. Solid-state light, epoxy resin packaging, light body and no loose parts, there is no filament burnability, thermal deposition, depreciation and other shortcomings, the service life of up to 60 thousand to 100 thousand hours, 10 times longer than traditional light source life above. While its environmental benefit is better, no ultraviolet and infrared spectrum, no heat, no radiation, small glare, no pollution and waste Recyclable, no mercury, cold light, safe touch, which belongs to the typical green lighting source.

LED light source can use red, green and blue three color principle, in computer technology under the control of the three colors with 256 gray scales and arbitrary mixed, can produce 256 x 256 x 256 = 16777216 colors, form a combination of different colors to achieve the dynamic change and be the most changeful, the effect of a variety of rich and colorful images. At the end of 2008, Harbin City, the first international ice LED lighting landscape design innovation contest start lighting ceremony "held in the event, Harbin ice and snow in the world's largest ice building" Church of Duomo "is beautiful LED lights decorate. Under the control of the computer, with the LED as the light source of the "Church of Duomo" constantly changing color, frozen ice building because of the combination of light and color and showed a state of flow. The response of the LED light source is fast, the characteristics of many changes once again show incisively and vividly.

Source and the monotonous luminous effect of LED light source is low compared to the successful integration of the micro electronics, computer technology, network communication technology, image processing technology, embedded control technology, so it is digital information products, is a semiconductor photoelectric device of high point technology, with online programming, unlimited upgrades, flexible changeable, is the high point of pure technology.

In recent years, some developed countries around the world, the development of LED Technology launched a fierce competition. In recent years, Japan's twenty-first Century light plan, the United States, the next generation of lighting plan, the EU rainbow project, South Korea, GaN semiconductor lighting plan and other government programs have been introduced. China is the world's largest producer of light sources and lamps, but mainly in the low-end products, the market share of only 18% of the world's share, big and not strong. Development of semiconductor lighting, enhance the international competitiveness of the industry is of great significance. To this end, China launched a national semiconductor lighting project in October 2003, the establishment of the national semiconductor lighting project management office, through policy guidance and incentives to promote the development of domestic LED industry and lighting industry.

LED products at present, improve the ability of technology innovation and application development in our country gradually, more and more important position of device reliability, test method and standard Jianxingjianjin, all of which were marked Chinese LED industry has entered a new stage of development. After more than 30 years of development, China's LED industry has initially formed a complete industrial chain, including epitaxial wafer production, chip preparation and packaging, as well as LED product applications.

It is understood that, in order to promote cooperation, and downstream of China's semiconductor lighting industry, accelerate the establishment of patent strategy of China's semiconductor lighting, national semiconductor lighting industry alliance development and patent pool working group has been completed in 08 years at the end of June were collected into the pool of patent collection. According to "who participate in the who benefits, not difficult to participate in the benefit" principle, to provide the application by the project supported by the national patent in the voluntary, and appropriate consideration of external purchasing and other forms; second is to draw patent map, establishment of semiconductor lighting patent strategy in China, the joint working group of technical experts, patent attorney, first from the support of the "337 investigation" similar patent disputes litigation began; and finally the construction of patent pool is helpful to build industry standard and seamless platform, bring international competitive advantage for domestic enterprises.

Ministry of science and technology, national semiconductor lighting office director Wu Ling said, LED chip of 2008 Beijing Olympic Games venues high brightness 60lm/w Stadium "bird nest" and "Water Cube" and other uses are provided by domestic manufacturers, this has completely reversed the foreign high-end LED chip monopoly in the domestic market situation. This shows that China's LED industry in the experience of the device to buy, buy chips, buy epitaxial film after the road, has now really had the ability to produce epitaxial wafers and chips. At the same time, to break through the monopoly of multinational enterprises, China's LED industry is not only the gradual extension of the chip and chip production and other technical content and added value is higher, more difficult technical breakthrough