LED packaging technology to enhance the overall strength

Domestic LED enterprises in order to gain a foothold in the competition, we must strengthen cooperation with international manufacturers, chip and packaging, etc..

Along with the national energy saving and emission reduction and further attention to the implementation of China's LED industry develops very rapidly, not only for us is the largest producer of LED, but also the performance we have gradually grown into a big LED.

LED wide application

2008 the success of the Beijing Olympic Games provide a good stage for the success of LED: 496000 RGB high-power LED devices on the water cube; Chinese red red yellow white high power LED successfully cast the "bird's nest"". In addition, in addition to high power products, SMD SMD LED elliptic lamp, traditional also successfully applied to the Olympic Games in different places: Pangu Plaza 7 giant video full-color display, LED light source with a nest in the opening ceremony of the Olympic Games venue central floor LED screen, LED decorative lamp, the body of the performer sky of the Olympic rings. The nest at the stands and provide broadcast audience to watch the opening touch LED screen, the use of LED light source 2008 Countdown with the wait fou.

In fact, in addition to the Olympic Games, LED has been widely used in China, mainly in the following areas:

1 landscape lighting

At present, Shanghai, Xiamen, Beijing, Dalian, Nanchang and other large and medium-sized cities landscape lighting has considerable scale, complete the corresponding LED lighting demonstration project. The successful completion of these demonstration projects in large and medium cities led to the further development of LED lighting products in county-level cities. In Chongqing, for example, in July this year has been basically completed the night landscape lighting LED demonstration project, the main city of the central business district and the landmark building lighting, has been basically used on the intelligent LED lighting system. Among them, the LED power consumption is only ordinary lights 1/10, according to the Chongqing 200 thousand traditional night lighting calculation, the annual cost of lighting electricity saving in Chongqing will be more than 100 million yuan, so the widespread use of LED is the trend.

2 display

The display was more commonly used at present, advertising media, information display, city lighting engineering can be seen everywhere in the LED screen figure, in addition to the United States of Las Vegas and a few other city, LED is the most widely used Chinese display.

3 urban road lighting

With the rapid increase in the efficiency of high-power LED (the current white LED efficiency at 350 Ma drive current, light efficiency has reached 114lm/W), LED road lighting in China to promote faster than expected. At the beginning of this year, the U.S. manufacturer of famous LED CREE in Tianjin economic development zone and the Tianjin University of Technology, the first LED in the Chinese city lighting, road lighting off LED first application boom; recently, the bridle mountain tunnel in Guangzhou has successfully used the LED tunnel lamp, the power consumption between 60W-120W, compared with the traditional high pressure sodium lamp saves 50% power. I believe that with the further improvement of the LED light efficiency and the improvement of related technologies, LED will be more widely used in urban road lighting.

4 traditional lighting

Compared with the traditional lighting, the advantages of LED are more obvious, compared with fluorescent lamps, LED lighting applications general energy-saving lamps 20%-70%, and according to different applications and optical design, its power consumption is different. At present, many of China's large traditional lighting giant has begun to shift the focus to LED lighting.

Chip made great breakthrough

The development of the chip has a great breakthrough in China, especially in the epitaxial film, epitaxial substrate through independent innovation has made great progress, but there is still a certain gap with the international level. Foreign blue chip external quantum efficiency has exceeded 50%, and with the further reduction of the driving voltage, this data will be rewritten. Relatively speaking, our products in terms of quality and efficiency of the distance, especially in the high power chip gap is obvious. The author believes that to solve these problems, we also need to work hard in the following areas:

The introduction of high-end talent; strengthen the cooperation with international manufacturers; the introduction of outstanding international manufacturers; to strengthen the communication between the domestic chip manufacturers; the relevant departments need to lead organization around special high-end conferences to jointly promote the development of the chip, LED chip.

In addition, the domestic MOCVD (metal organic chemical vapor deposition) equipment does increase with each passing day, which can show that the domestic investment in LED chips in the increase, which is gratifying phenomenon. But the development of LED chip technology is not only to increase the equipment and production capacity to reflect, but also need to improve the quality of LED itself.

Attach importance to LED packaging

Can not be denied that the packaging industry in China in great changes in recent years, progress is obvious to people, especially in the small power LED development, and many have been the introduction of automated packaging equipment, in the production and quality of a great leap forward. But we should pay attention to some problems existing in the development process when we see these changes:

1 packaging applications and more specifically.

Impetuous can be said to be the general mentality of China's LED packaging companies. Many companies in the package after a slight turn and do the application, the application is what you want to do. Few have the ability to live alone, LED packaging enterprises. The main advantage of packaging products is reflected in the price, really in quality with Nichia and other international well-known enterprises compete with enterprises few.

2 deep understanding of packaging technology.

As a matter of fact, the gold content of packaging technology is no less than that of chip production