Lighting the future: listed companies LED

LED as high quality and energy-saving lighting technology, wide application prospect data - reporter Tian Lu

When we open a mobile phone to see the flickering blue light, see a large screen shine in the outdoor plaza, we may not realize, solid state lighting technology used in these two kinds of things on the field of lighting (LED), may cover all future social life. In other words, this is a great investment opportunity.

LED and China's foreign cases, are emerging industries, but relatively speaking, more perfect immature technology. At present, there are 4 listed companies with LED business in China, most of which are in the initial stage of R & D and marketing, and have little contribution to the company's performance. However, in the process of communication with reporters, they are optimistic about the prospects for the future, the majority of optimism.

LED lighting market gradually expanded

LED technology is a high quality and energy-saving lighting technology. The so-called LED, that is, semiconductor light-emitting diode, is a semiconductor chip as a light-emitting material, the conversion of electrical energy into light emitting devices. Technical experts pointed out that, LED lighting has many benefits, but the prospects for business operations, it is the most critical point of energy conservation.

Due to the high efficiency of electro optic conversion, LED lighting in the case of the same power consumption of only 1/10 of incandescent lamp and half of the fluorescent lamp. If LED is able to replace every household lighting in our homes and offices, the market will be very broad. This is the direction of the technology since 1960s since the start of the efforts of the countries of the investor. However, this ideal may be able to achieve some of the 2010, because the current LED lighting is not bright enough to meet the requirements of general lighting. According to the researchers, it will take at least a few years to achieve this.

Global LED industry has been growing steadily in recent years, in 2004 the total market sales of its products reached $4 billion 700 million. LED technology in addition to other areas of general lighting to find a market space. The LED technology is widely used in many fields, such as indicator light, LCD backlight, keyboard and flash lamp, automobile lamp and so on, and it is constantly developing new application fields. According to a research institute predicts that in 2008 the LED market will grow to $6 billion 900 million, an average annual growth rate of about 13%.

Key technologies of listed companies

At present there are 4 main A shares of listed companies involved in the LED industry, respectively, the Shenzhen side, LIAN, G and G photoelectric Silan Jiangsu changdian. The G Silan by some research report that the manufacture of the LED chip, and part of the technology has a leading position in the domestic. From the company's 2005 annual report, the holding company has successfully developed a Silan azure light-emitting diode chip products with high brightness, high power, bulk supply to customers since January 2006.

We have started a comprehensive market supply, this year's income is still not estimated." G Silan secretaries told reporters in an interview. He said that the product is sold in the domestic market in this area is not small, the most important is the development of the problem.

Customers do not know too much, after the interpretation, after the trial, they may have a lot of product demand." Dong said. However, he also pointed out that the domestic market is currently growing, demand is still not stable, which is not fully reflected in the advantages of LED products.

From the relevant information, LED production process includes the upstream single chip, epitaxial wafer production, and midstream chip production, as well as the downstream LED product packaging and other parts. In the downstream product packaging this piece, the industry told reporters that there are many small companies in the country to do, but because they do not grasp the front-end technology, so do not earn any money.

At present, the 4 listed companies, or from the beginning of the chip, to expand the upstream and downstream of the industrial chain, or has developed a high-power high brightness blue LED chip, or to achieve the LED epitaxial wafer and chip scale production, etc.. It can be said that the 4 companies are key technology research and development and grasp the considerable attention.

Industry development has great potential

During the interview, the reporter learned that, LED technology required wafer raw materials, currently imported from abroad. So, will the wafer material, like the silicon needed to produce solar cells, have a shortage of materials and a spike in prices?

This question was dismissed by industry researchers. A researcher pointed out that, although LED is a sunrise industry, promising, but the scale of development in the overseas is not very large, so not a shortage of raw materials.

From the 4 listed companies in the relevant circumstances, although the LED industry has become one of the pillar industries of some companies, but it has not yet achieved profitability, or smaller contribution to performance. Which is relatively prominent, should be the number of LIAN photoelectric. LIAN opto Electronics Co., Ltd. and Xiamen Hualian Holdings Nanchang, respectively, the production of GaP ordinary LED chips, as well as LED device packaging. 2005, the two companies have achieved a better operating cash flow, and the investment income of the reached more than 10% of LIAN's net profit in 2005.

However, there are companies in the development of the industry appeared confused. G Su long in its 2005 annual report disclosure, the company capital of Beijing Gongda Zhiyuan Electronic Co., Ltd. due to the fact that the industry is not as expected. at present