As we all know, in recent years, LED has become one of the hot topics in the lighting industry. Different organizations in the industry have organized large and small seminars to discuss LEDs, but the results of the discussion are all scales and half claws. in conclusion. Based on the mission of the service lighting industry, Aladdin Lighting Network will conduct interviews with representatives of LEDs, such as manufacturers, experts and users, in order to conduct in-depth analysis on LED topics for the majority of netizens. This time, the reporter came to Panyu and interviewed the vice chairman of the factory representative Puguang Technology Co., Ltd. Chen Guocong on the LED industry.
In the interview, Mr. Chen analyzed in detail for us that the LED industry is mainly divided into four aspects: upstream, midstream, downstream and backward application. Upstream refers to the development of LED epitaxial wafers; midstream is the cutting of LED chips; downstream is the packaging of LEDs; the application end refers to the final products, such as rear projection, LED lamps, etc.
Epitaxial wafers are the core technology of the LED industry and dominate the development of the entire LED industry. Today, the best in epitaxial wafer technology is mainly foreign manufacturers, Europe and the United States like Philips, Osram and other lighting manufacturers, and Asia has Nichia companies, they have mastered most of the patents on the epitaxial film. In Asia, companies such as Japan and Taiwan also have some good companies in the development of LED epitaxial wafers. In China, the technology of R&D is relatively weak, and there are only a few good ones, and they are still working hard. There are two main reasons for restricting the development of epitaxial wafer R&D enterprises: First, the investment is large, including the input of technicians, the construction of the factory building, and the production machinery. All of them require a lot of money. Secondly, the technology update is developing rapidly, and it is very likely The hard-working technology has fallen behind in less than half a year. This part directly affects the development of LED and becomes a difficult problem that must be overcome by LED popularization.
Compared with the research and development of epitaxial wafers, domestic chip cutting technology is relatively mature and has approached the level of Taiwanese enterprises. One of the most notable features of the domestic chip-cutting enterprise layout is that it uses the epitaxial wafers of its own research and development or strategic partnerships with the chips it cuts. Therefore, upstream companies and midstream companies often combine closely.
As for the downstream packaging companies, they are generally in Shenzhen. In the early days, they were mostly invested in Taiwan, and the scale was relatively large. This situation is mainly due to the fact that Taiwanese businessmen must invest in the mainland in the early days of reform and opening up, mainly relying on Hong Kong as a springboard. Shenzhen is just approaching Hong Kong. Together with the support of the Shenzhen government at that time, Taiwan-funded LED packaging plants are concentrated in Shenzhen was built.
In the backward application side, LEDs are mainly used in backlights, and in the field of lighting, the rough estimate is not more than 5% of the total output value of LEDs. In this 5%, most of them are white LEDs. This situation is mainly caused by the fact that the production of high-brightness LEDs is constrained by technology and cost, resulting in a market disadvantage and difficulty in popularization. However, LED is a big direction in the field of lighting. This is because energy saving and durability make LED light source have great advantages compared with other light sources. It is believed that after the technological breakthrough, the cost will be reduced, and LED lamps will have great market development. potential.
About Puguang
Puguang Technology was established in 1999 and is a high-tech wholly-owned enterprise invested and established by Hong Kong Puji Development Group. The company has two factories in Guangzhou Economic and Technological Development Zone and Fanyu District, covering an area of ​​more than 42,700 square meters and an investment of about 300 million Hong Kong dollars. The company is committed to providing high-quality semiconductor epitaxial wafers and chips for domestic and foreign manufacturers, mainly for large outdoor LED display manufacturers. Its products have their own patents, anti-static technology is mature, and the quality is widely recognized. Looking forward to the new year, the company will take the slogan of “development and developmentâ€, vigorously strengthen the R&D team, develop products with independent research and development patents, and continue to lead in the upstream market of LED.
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