Watch the current crazy LED general lighting behind the dream

First packaging line began operation last month, according to the plan, about March next year we will be on line 4. I also plan to use the other half of the factory as the application development, mainly to do the bulb, and now this profit is very large. Last year, from the trading company switched to LED packaging factory boss Li Li, now sitting in his office in Shenzhen, Bantian, depicting him and the other 3 investors together to build the ongoing LED dream. 1400 square meters of the plant is very open, the only one of the packaging production line accounted for only about 50 square meters of space. In contrast, a plant is located in the corner office is a bit cramped, not a small room in addition to two sets of big boss chairs, sofa, tea table, drinking fountains, everywhere scattered about the LED industry magazine, packaged LED light source and LED bulb.

"I entered the LED time is not too early. But to tell the truth, this industry is simply too hot. It is no exaggeration to say that I just put the message out, there are a lot of people take the initiative to come to me to give me an investment, the issue of funding will soon be resolved. "

"This is really a bit crazy, a lot of what all don't know who dare to enter. Some time ago I heard that a friend is ready for the package, investors are looking for good plant, looking good, start with ASM, just know even now to pay the full amount, to 5 in 2011 and June was able to get the package equipment. As a result, everything is gone. "

Light from the order of ASM, we now China LED package as can be imagined "heat". "As long as the product is in need of illumination LED opportunities, attractive LED prospects, attracting more and more people scrambling to enter the industry. Currently, LED's most potential market is undoubtedly a flat-panel LCD TV, notebook computers and notebook displays in large size LCD backlight, but there is no doubt that the ultimate goal of universal lighting is the development of LED. Currently, the LED general lighting market has not really started, LED bulb replacement lamps will become the most important growth areas of the lighting market. However, the market a large number of LED bulb, equivalent to the true sense of solid-state lighting (SSL)? Is LED really ready for general lighting?

LED general lighting first faces four major challenges

U.S. Department of energy has said: solid state lighting is 50 years in the lighting field the most disruptive technology innovation. There are a lot of people in the industry expressed their approval, and that LED is a subversive product, it is necessary to leather its original product life. But in fact, LED into the general lighting market, still faces four challenges, they are: light quality, light performance, reliability and simplicity.

PHILPS Asia Marketing Director Zhou Xuejun explains: "LED light quality compared with the traditional lighting there is still a gap between the performance and application of light; not covered; because the LED lighting chip reliability by light, heat, mechanical and other Internet part factors, thus unable to keep the light output lumens enough to maintain life; because of the lack of uniform standards, now LED lighting products on the market all kinds of complexity, also hindered the short term is difficult to be more receptive. "So, what are the current LED market to improve the quality of light and light effect of the program?

Light quality usually light quality we talked mainly refers to the distribution of light, light and shadow angle, and color rendering. Here, Zhou Xuejun stressed that designers should pay attention to: different LED particles between the color is consistent? Is the change of different particles consistent over time? Is there a color difference in LED at different angles? Color rendering index performance?

LED the packaging process includes two important steps: using gold bonding on chip and pin, and the fluorescent powder coating.

The two step can cause color of LED, especially the gold thread will block the light path, if improper operation may cause hidden cracks of chip chip so as to form a hidden fault.

In order to solve these problems, PhilipsLumileds's new LUXEONRebelLED series uses the latest TFFC (thin film flip chip technology) and the unique Lumiramic fluorescence technique.

According to Zhou Xuejun, the back electrode of the TFFC technology in the circuit board, and surface wiring, so better physical structure. Lumiramic fluorescence technique using fluorescent ceramic plate instead of fluorescent powder directly bonded to the chip, making the surface completely smooth, not convex and uneven, thus fundamentally avoid most of the traditional LED encapsulation method due to the phosphor coating uneven in Los Angles deviate from the center showed inconsistent colour. In addition, the use of Lumiramic technology can also be divided into white light bin (sub file) to reduce the original 1/4., Zhou Xuejun added.

At present, especially the lighting design for the lighting industry, the most headaches than bin. for some experienced LED manufacturers, the usual practice is to use the whole range of output in all files in the white LED. However, under the specific CCT (relative color temperature), it is impossible to produce a white LED with high consistency at low cost, which is mainly due to the wavelength of the blue chip LED and the coating technology of the phosphor. Therefore, manufacturers may be mixed with the use of multiple sub bin LED, but in this way, the scope of application of the product is limited, not only increased the complexity of the production process, but also produce more inventory. Cree solutions for this company