The rapid growth of LED to meet the era of LED lighting

LED application has been extended from the indicator lamp, signal lamp, display screen, landscape lighting to white light.

With the continuous development of LED technology, the application of products continue to mature, the relevant standards will continue to introduce.

Despite the international financial crisis in 2009, China's LED industry is still a rapid development of the year, the brightest funds have flocked to the "low-carbon, energy saving, environmental protection," the green field. According to incomplete statistics, in 2009 the country invested heavily in the new epitaxial, chip manufacturers have nearly 20. Enterprises engaged in LED industry in China in 2009 more than 3000, more than 800 thousand people in employment in the LED industry, the LED industry showing a thriving situation.

LED epitaxial chip to a new level

The growth of epitaxial and chip manufacturing is the core technology of LED industry, the research and production units engaged in extension, chip more than and 50, according to incomplete statistics, the production type epitaxial furnace on-line in 2009 has more than 100 taiwan. Upstream epitaxial, chip production capacity rapidly, technology advances, products have begun to enter the high-end. In 2009, the support of all levels of government, relevant research institutions LED and manufacturers invest a lot of manpower and funds, to carry out LED study on production technology of new product development and industrialization, basic research, epitaxial chip, has made great progress in technology. The main research includes the patterned substrate epitaxy, nonpolar epitaxial, substrate transfer, laser stripping, eutectic welding, ITO electrode, surface roughening and other new photonic crystal structure, new technology, new technology, internal quantum efficiency and external quantum efficiency, significantly improve the epitaxial chip. Blu ray power chip products white light efficiency reached 80lm/W ~ 100lm/W, red power chip products more than 35lm/W. In 2009 the total domestic production of various kinds of chips only about 55 billion. According to the material system, GaN based LED the largest share, accounting for about 53% of the total, InGaAlP accounted for 5.9%, GaAlAs accounted for about 10.1%, GaAsP accounted for 10%, GaP accounted for about 20.2%. 2009 epitaxy, chip sales are in short supply, mainly by LED backlight and alternative LED white light demand driven, which indicates that the era of LED lighting is coming.

Application to further expand the field of lighting

2009 years structure LED packaging products in China is obviously improved, the vigorous development of product application. Small scale and quantity are the characteristics of LED packaging industry in china. At a certain scale, sales in more than ten million yuan of enterprise about 100, has formed a complete range of all kinds of package types, basic synchronization with foreign products in the domestic packaging, basically can find all kinds of imported products of alternative products. In 2009 the domestic package of about 1000 billion, accounting for about 60% of global production capacity. The level of the domestic chip package, small power white light efficiency can reach 110lm/W ~ 120lm/W, LED ~ 100lm white power up to 90lm/W /W. Instead of the traditional light bulb and LED lamps have been used, the market prospect is broad; conduct a demonstration of LED street, gained some experience; 60 anniversary of the National Day in front of the Tiananmen for super large color chips are all made in China, but also the domestic manufacturers package; decorative lighting LED also shine in Shanghai World Expo on.

The application field of LED has been extended to the white light from the indicator lamp, signal lamp and display screen. Now there are about 2000 manufacturers, in 2009 the output value of domestic LED applications is about 60 billion yuan, an increase of more than 30%.

The first batch of LED standards promulgated

Due to the urgent need for the development of LED industry, the relevant departments have been stepping up the development of LED standards. In 2009 the Ministry of industry and information technology of semiconductor lighting standards working group has released 9 standards based LED products and industry standards, 9 standards of the announcement of the cover of the LED materials, chips, devices and related test methods, will help guide LED market orderly, to promote the benign development of Ye Jiankang, LED. So far, LED has more than 40 standard, in addition to the provincial and municipal local standards formulated by LED, a total of more than 100. The relevant department is also stepping up the development of more LED standards, and actively participated in the organization of the CIE and IEC international standards organization LED standards, and the United States, Japan related standardization organization liaison and communication, November 2009 is also the LED standard of communication with our counterparts in Taiwan. With the continuous development of LED technology, the application of products continues to mature, the relevant standards will be introduced in the future.

Meet the arrival of the era of LED lighting

LED lighting applications have a larger space for innovation, which will be another opportunity for the development of LED industry. LED lighting should break the traditional design concept of the light source, the design of surface light source, out of the new road of autonomy. The surface light source assembly is generally of low power LED chip package directly on the metal base circuit board, or the small power devices installed on the metal base circuit board, taking into account the drawbacks of heat problem will make the light effect is greatly reduced, the use of power type LED should be 1W. Small power LED chips and devices not only high light efficiency, heat dissipation problem is resolved, but also caused by the glare of light pollution is low, cheap, easy to popularize. The traditional incandescent lamp LED traffic lights with small power devices assembled by 7W-10W LED surface light source is used to replace the original 100W- 200W is a good example of successful application. LED lighting source can also be in accordance with the requirements of the light environment, through the electronic control circuit to achieve the traditional light source can not be achieved brightness change, color change, color temperature changes, timing changes in the regulation.

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