LED lighting antidote: attach importance to the development of high value-added industrial chain

LED lighting industry is currently facing serious overcapacity, homogenization of competition, the vicious cycle of low price competition, LED industry chain to develop. Therefore, the research and development of new, fashion, high lighting quality LED lighting will be a major issue in the future research, with high added value and output value, from now on we should attach importance to.

LED industry development is divided into two stages

LED development of the first phase of the product luminous efficiency is low, the second stage product efficiency continues to improve.

In 1962, in the United States Ge Corp Holonyak invented the P GaAs light emitting diode, and predicted: the future of the lamp can be a piece of alloy pencil head size, practical and not easily broken, never burned today than the common light bulb conversion efficiency at least 10 times. In 1968 the United States launched a commercial LED products, 30 years, LED luminous efficiency increased by 10 times every 10 years, to the end of last century, a total of up to 1000 times. Haitz et al in October 1999 put forward the "another semiconductor revolution", opened the prelude to the semiconductor lighting revolution.

Holonyak in the 2000 issue of the proceedings of the American Physical Society J.P.S "is the ultimate form of light emitting diodes? "In the title of the article, and concluded that" in principle, light-emitting diodes is the ultimate form of light, in fact, the same, it will develop to all power and color are realized, it is important to understand this point". So far, all kinds of colors of high brightness LED have been able to produce, white power LED luminous efficiency to 2010 and increased by 10 times.

LED industry development is divided into two stages, the first stage is from 1968 to 1999, is the growth stage of the LED industry, product features are relatively low luminous efficiency, mainly used in signal and display. The second stage is from 2000 to 2020, is to improve the development stage of the LED industry, product efficiency continues to improve, from equivalent to 15lm/W incandescent lamp to 258lm/W, more than all existing electric light source. The scope of its application to the field of lighting, until it became the protagonist of the field. Due to the development of technology and the gradual expansion of market size, the total size of the LED industry was ten times or even 100 percent growth.

Semiconductor lighting industry chain adjustment

In the new situation, LED industry chain must be adjusted to the semiconductor lighting industry chain.

In the first phase of the development of LED industry, the industrial chain structure is relatively simple, is what we usually say LED upstream, midstream, downstream industries.

LED upstream industry chain mainly refers to the LED epitaxy and chip manufacturing, we usually will these companies called chip factory; LED midstream industry chain refers to a LED device packaging industry, known as LED packaging factory; downstream industry chain refers to the LED display or signal application products industry, mainly refers to the LED display, LED lights LED, car lights, LCD backlight.

In the second stage of the development of LED industry, LED luminous efficiency continues to improve significantly, in addition to the application of the original signal and display in the field of further development, highlighting the gradual expansion of the field of lighting. By 2012, the LED efficiency of the device is up to 130lm/W, can not only replace the incandescent lamp, halogen lamp, also can replace the fluorescent lamp (including compact fluorescent lamps), substantial growth in the industrial scale, especially in lighting applications market started. A typical example is the 2010 sales of 20 million LED bulb in Japan, in 2011 sales of up to 35 million. The European lamp and PAR lamp market, North America start lamp and bulb lamp, LED lamp start China started, people said in 2010 was the first year of LED lighting. LED lighting applications will be rapid development in the new situation, LED industry chain will have to be adjusted for the semiconductor lighting industry chain.

The characteristics of the semiconductor lighting industry chain has three main aspects: first, to LED lighting applications as the main application areas; second, except for LED light source, LED lighting applications, with the development of modern lighting technology services and systems solutions become the biggest industry in the industrial chain; third, because of the industrial scale, this requires a the corresponding scale of production equipment and testing equipment manufacturing industry development.

Semiconductor lighting industry chain structure into an inverted triangle. From 2010 to 2020 and the global semiconductor lighting industry chain comparison data we can see the following five trends: first, in 2010 the whole industry chain is two small diamond in the middle, very normal, healthy industrial structure should be such as the inverted triangle in 2020, an industry exports to second, 53 times in 2020; the increase in 2010 the total output value of the whole industry chain, the fast growth; third, increase the most powerful intelligent control LED lighting project, more than 700 times; fourth, the increasing rate of second big is lighting, an increase of 30 times 10 years, again is the LED package, an increase of 25 times 10 years; fifth. From 2020 the output value, the output value of lighting system is almost 4 times that of LED packaging devices.

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