LED has been recognized by most people and is also favored by most people. It is considered to be a new generation of lighting sources in the 21st century. According to the current forecast, around 2010, the light effect may be close to 50lm/W, so it is being hyped up. However, after all, it has a single power of about 0.1W, so the luminous flux emitted is extremely limited. At present, many LEDs must be integrated to make a new light source to replace incandescent lamps or compact fluorescent lamps, and to make lamps such as lamps and wall lamps. These examples have been many. However, the high price is hard to promote, and it seems that it will take some time to reach a reasonable cost performance.
So, besides the current large number of traffic lights and emergency lights, is there anything else that is not its function? The US LD+A published a message in July this year: the control voltage using LEDs is very low and the control method is simple. The advantage is that it is installed in the indoor ceiling or made into a large-scale lighting, and the switch state is controlled by directly driving the triode through the computer output signal. Thanks to the use of a computer, the number of LEDs can be easily and freely controlled, and the dark and variable colors can be changed in a colorful and colorful lighting effect, and there have been successful cases. For example, in the US Rainforest Cafe, a color-changing color canopy was made, and Hollyword made a large-scale art chandelier with a colorful color.
Of course, many LEDs are put together to make a lamp and made into a sign. The marking line is also a common application method. Each red aviation obstacle light at the top of the support column of the Millennium Palace in the United Kingdom has more than 10,000 red LEDs.
According to a US forecast, the global LED market will grow from $3.2 billion in 2004 to $5.6 billion in 2008.
After 2006, high-brightness LEDs—especially ultra-high-brightness LEDs (also known as UHBLEDs), are expected to grow at an alarming rate. HB-LED's revenue in 2008 is estimated to reach $2.64 billion, while UHB-LED is expected to account for 22% of the global LED market.
General lighting equipment will be the mainstream of the future, and is expected to reach $844 million in 2008. It is expected that next year will be an important key to LED development. At present, although the standard and indicator LEDs account for a large number of shipments, the future HB-LED and UHB-LED will have significant revenue.
The report concludes that automotive, signal and backlight applications are expected to account for 60% of market sales over the next five years. Super bright LED development speed is over 50%.
According to reports, the ultra-high brightness LED market was 1.2 billion US dollars in 2001, and the market in 2002 was about 1.6 billion US dollars. The domestic LED industry is also in the stage of rapid development. At present, more and more companies investing in LEDs in China.
According to preliminary understanding, more than 400 units engaged in the LED industry in China (excluding foreign companies) have more than 50,000 employees, including more than 5,000 technicians. In 2002, the output of LED exceeded 15 billion, and the output value exceeded 8 billion yuan. In 2003, the output value of LED exceeded 10 billion yuan, and the output was about 20 billion. Among them, there are billions of ultra-high brightness LEDs. In recent years, the development speed of LEDs has exceeded 30%, and the development speed of ultra-high brightness LEDs has exceeded 50%.
At present, LED lighting products have already stabilized the three major consumer groups: the largest consumer group is the engineering company, providing individualized engineering lighting design and production processing; the second largest consumer group is industrial enterprises, special LED for industrial demand, application In the product development; the third is the domestic lighting brand enterprises, for OEM processing. Of course, it also includes OEM processing for international lighting and lighting brands.
The LED industry is a sunrise industry, but there are many problems. The first is that the technical foundation is relatively poor, lack of core competitiveness, and there is still a gap with the international market; second, the lack of industry standards, LED lighting products have no uniform quality testing standards, the quality of products sold in the market is uneven, to consumers Third, the products with mature products and mature technologies have entered the trend of vicious competition for prices. The development of new products has been neglected on the basis of cost reduction, which has led to the development of the entire industry.
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