LED outdoor lighting, dreams come true

China's led patent technology and other factors seriously hamper the development of China's LED outdoor lighting. In the fiercely competitive LED lighting market demand, only by mastering LED patents and technologies can we better guarantee the quality and performance of our products.

LED (Light Emitting Diode) is a solid-state semiconductor light-emitting diode that converts electrical energy into visible light. It directly converts electricity into light with high efficiency, and has a service life of tens of thousands of hours to 100,000 hours. It consists of wafer and epoxy resin, can work at low temperature, and has good directionality of light source. It is used in landscape, safety, special and general lighting fields, and the market potential is incalculable. Today, high attention is the LED outdoor lighting.

I. Analysis of the current situation of LED outdoor lighting in China

The global promotion of low-carbon life, energy-saving and carbon-reducing LED semiconductor lighting has become the "darling" of the times. LED is a new generation of environmentally friendly light source, which is known worldwide for its high brightness, low heat, long life and non-toxicity. With the development of green lighting sources. China's LED lighting industry started in the 1970s and has been developing for more than 40 years. China has now become the world's largest producer of lighting appliances and the second largest exporter of lighting appliances. LEDs, as the leading industry for outdoor lighting in the 21st century, also have shortcomings.

1. Attention at home and abroad on LED outdoor lighting and its application level

In 1998, the Ministry of International Trade and Industry of Japan issued the first "21st Century Light Plan", which made the world pay attention to LED for the first time, and its government also stimulated the development of LED technology through financial subsidies, tax incentives and loan concessions. In 2005, the US government launched the "Next Generation Lighting Plan" to implement tax incentives for the LED industry. The large-scale LED street lighting renovation project in Los Angeles promoted the use of LED street lights. In China's "National Medium- and Long-Term Science and Technology Development Plan", LED street lamps and other semiconductor lighting products have been explicitly included in the "key areas and priority themes", China's Ministry of Science and Technology also launched the "Ten Cities and Ten Thousands" semiconductor lighting project, three years It plans to install up to a million LED street lights, and Guangdong's “Thousand Miles of 100,000” LED streetlight demonstration project has accelerated. “Guangdong Province LED Street Light Local Standards” has also been introduced, and LED street lamp construction has received strong support from relevant departments such as the government.

LED outdoor lighting is not only widely used in urban landscapes, but also used in tunnels. At present, the highest interest rate is the application of LED street lights. Los Angeles will install 140,000 LED street lights within five years, and the two city lights in Ambry and Sunbury in Pennsylvania will be replaced with LED street lights. LED lights are commonly used in other countries. Japan, South Korea, etc. In China, Dongguan plans to use LED street lights for all three years of road lighting, and Hainan plans to achieve it in five years. The Beijing Olympic Games, the Shanghai World Expo, and the Guangzhou Asian Games have extensively used LED outdoor lighting, such as the main venue of the Guangzhou Asian Games Asian Games venue, and the surrounding roads with a total of 70,000 LED street lights, and 12 surrounding areas of the Lingnan Pearl Stadium in Foshan. The main road, 12,000 盏 high pressure sodium lamps were all converted into LED street lights.

LEDinside Research Department data show that in 2010, the number of global LED street lights will reach about 870,000, of which China's LED street light market will grow by 60% and reach more than 400,000. In fact, China's annual street lamp market demand is more than 20 million baht, and is on the rise. Experts predict that the global LED street lamp shipment scale will reach 8 million baht in 2011, the penetration rate is 8.5%, and China's demand LED in 2011. Street lamps account for about 59% of the global market share. According to statistics from the High-tech LED Industry Research Center (LIRC), the installed number of LED street lights is expected to reach 1.12 million in 2009-2011.

According to this, China's LED outdoor lighting industry is facing unprecedented opportunities and huge market potential, and its development prospects are very optimistic.

2. The current development status of China's LED outdoor lighting industry

(1) Foreign basic monopoly LED patent, less domestic patents

Internationally, the leading companies in LED patents include Nichia (Nichia Chemical), ToyodaGosei (Toyota Synthetic), CREE (Cui Rui), Philips Lumileds (Philips Lumens), Osram (Osram) and other well-known enterprises. It is reported that among the relevant patent countries for LED applications, Japan accounts for 27.9% of the world, and China only accounts for 9.34%. The number of patents in China is far lower than that of Japan and the United States, especially in the field of epitaxial technology and chip structure in the upstream and middle of the LED industry chain. The number of applications is even lower than that of Germany and Taiwan. The emphasis on patents by foreign companies is also reflected in the maintenance. For example, Japan Nichia tried to monopolize the blue LED market with patents, and used various means to maintain the blue LED market, and it did not sell the successfully developed GaN materials. Or only for sale in Japan.

(2) Foreign LED technology is higher than China

At present, the best developing countries in the LED industry are Japan, the United States, Germany, etc., and Taiwan has a good development. Taiwan's market share is only in Japan, ranking second in the world. Taiwan has beaten Japan with low-priced chips and low-priced products, forcing Japan to develop high-priced chips and high-priced products, and Taiwan seized the opportunity to combine the years of experience to develop downstream packaging, mid-upstream epitaxial wafers and chips. And continue to expand. Even so, Taiwan's LED technology content still has a huge gap with Japan, Europe and the United States. China's mainland is no match, especially in the production and design of LED phosphor materials, packaging technology, ultra-low technical content, as a major country in LED production and demand consumption, the development of China's LED lighting industry still needs to break free, seeking more The opportunity to communicate with foreign countries and the ability to form a standardized brand effect will make the LED outdoor lighting industry go further.

China's LED outdoor lighting technology content is not high, mainly in the material production and design, epitaxial materials, chips, packaging, lamp development and other links are out of line, the upper, middle and downstream industry chain is not in place, and chip development process, chip The core technologies such as packaging are also in a low-level development stage. China's LED industry is mostly concentrated in downstream enterprises with low technical level, small scale, backward technology, lack of independent innovation capability, etc., which also provides extensive development space for China's LED lighting industry technology.

The patent and technology of LED lighting industry has become a "double-edged sword" for the development of LED outdoor lighting in China. The hard-to-break LED patent is welcome. It is gratifying to learn advanced foreign technology through various means. For example, the “Second LED Driver Technology Seminar” hosted by Dabit Consulting in Shenzhen at the end of October will bring valuable learning opportunities to more than 600 companies participating in the conference, because the conference will invite domestically. Foreign experts have made a profound speech and interaction on LED hot topics, such as thermal power dimming and security of LED driver power, which has great development for promoting LED outdoor lighting (core technology lies in safety and heat dimming). enhancement.

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