Depth discussion: LED lighting when flying into the homes of ordinary people"

What technical Shanghai World Expo impressive? Many people believe that the answer is led. The opening ceremony of the World Expo River to display a total area of nearly 9000 square meters, is currently the world's largest outdoor LED display; the Expo is the world's largest demonstration zone LED: more than 80% of the park landscape lighting with LED, LED display more in the park is the venue of large-scale applications, unprecedented. It is understood that the entire World Expo with 1 billion 30 million LED chips. Hao Luoxi, a professor at Tongji University, who is responsible for the overall planning of the lighting of the Expo site, said: "they lit up Shanghai, World Expo. "

Many industry experts believe that, in view of the rapid development of LED industry in recent years, the demonstration effect of World Expo plus, 2010 can be called "the first year of LED lighting industry". Then, the LED industry in the future is bright? Whether it will soon enter thousands of households? The author visited Shanghai LED industry base, the government, enterprises, experts interview and other related professionals, together for the development of LED industry in.

LED lighting when flying into the homes of ordinary people"

Cake is?

Is expected this year, the scale of China's LED market over 100 billion yuan

"In the history of the development of lighting technology, World Expo has always played an important role in popularizing the. "The test center of Fudan University professor Fang Zhilie analysis, in 1889 the French Paris World Expo, Edison invented the incandescent lamp decorated Eiffel Tower, also contributed to the rapid popularization of incandescent lamp; 1939 held in New York and Losangeles of World Expo, demonstrated the first practical fluorescent lamp, fluorescent lamp and efficiency improvement and large-scale application; Shanghai World Expo will also contribute to the advent of the era of LED lighting.

The power consumption of "similarly, emission of LED lamp is 10 times of incandescent lamp, fluorescent lamp is 1.5 times. With the continuous improvement of technology, LED luminous efficiency is still a lot of room for growth, the theoretical life of the LED lamp is 100 thousand hours, is a fluorescent lamp of 10 times, incandescent lamp of 100 times. Moreover, LED lighting has successfully solved the problem of mercury pollution, and is an energy-saving and clean light source. Experts say.

As one of the Chinese semiconductor lighting industry pioneer, in 70s the last century will join in the field now Fang Zhilie witnessed the pomp, particularly pleased: "since 1962, semiconductor light-emitting technology origin so far, the luminous efficiency of LED has increased by 1000 times. From the use of computer and military, to the light, screen display, and then turn back light source, has been internationally recognized as the third generation light source, the most promising, high technology is one of the most promising field in twenty-first Century. "

1999 Japan launched the "light" of the twenty-first Century plan, the budget of 6 billion yen; the United States in 2000 started the "national semiconductor lighting project, 2000 - 2010 at a cost of $500 million; the European Union, Britain, South Korea, China Taiwan and other regions have launched semiconductor lighting plan. In 2009, despite the financial crisis, China's LED application market has bucked the trend, the overall growth of more than 30%, the output value reached 60 billion yuan. The landscape decoration lighting applications, China's largest LED accounted for 23%, the display is the second major application areas, accounting for 20%, LED backlight, LED lamps and other large size road lighting, LED lighting and other indoor lighting applications developed rapidly.

So this year, China's LED industry application market how much? According to the Shanghai semiconductor lighting engineering research center is expected, the overall size will reach more than 100 billion yuan. Among them, the LED backlight market size will reach 20 billion yuan, more than landscape decoration, becoming China's largest application areas LED. In 2008 the start of semiconductor lighting application engineering ("ten city lights") pilot drive, this year LED lighting market demand will reach 1 million 400 thousand units, is expected next year the demand will reach 2 million 500 thousand units total global demand for more than 5 to LED street.

Fang Zhilie told reporters: "China's LED industry has achieved 4 of the world's first full color: LED, LED traffic lights, solar LED lights, LED landscape lighting production are the first in the world. The next step, when it is the start of the LED general lighting field. "

However, in a burst of applause, the bottleneck of the development of the LED industry is still unable to avoid.

Development bottleneck in?

Lack of core technology, the standard is not perfect, the high cost of

Has a data perhaps tellingly: production of lighting products as world powers, China annual lighting products more than half of the world's total, but the total output value of less than 10% of the total world. LED lighting'>LED lighting industry chain is very long, including upstream substrate materials, equipment and epitaxial growth, midstream chip manufacturing, downstream LED packaging and application products. It can be said that China's LED lighting in the international industrial chain, is still concentrated in the middle and lower reaches. Regardless of the material, equipment, chips, or packaging technology, application technology, has not yet achieved a breakthrough in the true sense.

Hao Pelosi told the author: "technology innovation Chinese LED field is still weak. Luminescent materials manufacturing and light-emitting chip manufacturing is the development of the LED industry must master the two core technologies, but in this regard, foreign giants obvious advantages. The core patent basic grasp in a few big foreign companies, such as CREE, OSRAM and other hand, China's LED epitaxy and chip manufacturing key equipment imported, this will restrict the development of China's semiconductor lighting industry weakness, influence the brand's market competitiveness. At the same time, China's LED lighting enterprises are still in a large number of small scale state, the emergence of low-level redundant construction. "