The chip is LED core, its internal quantum efficiency directly affects the efficiency of high density led strip. The radiation compound rate will decide the chip the size of the heat production. Can say only produce has good quality LED chip, just may have the superior performance of the LED light source.
In order to be able to try to improve efficiency and reduce internal quantum no radiation compound rate, mainly from the two aspects to improve the quality of chips, also is to choose a reasonable chip structure and control chip density.The structure of the LED chips has single heterogeneous structure, double heterostructure and quantum well structures, etc, it to the luminous efficiency has a very big effect. At present is the most widely used and most efficient chip structure which is quantum well structures, for LED is concerned, the extension of the substrate and the lattice constant and heat coefficient whether matching, extension of preparation technology, etc, will directly influence the density of the grid. These may be in some conditions, especially for iii-nitrogen shine may favor, but for most case, because the existence, will shorten the chip of continuous operation life, reduce the density and light output reduction carriers, and may be no radiation recombination center.Therefore, how to choose reasonable chip structure, understanding of the shine of grid work led chips influence mechanism so as to better control the generation of adverse, also become the current what we must face one of the important topics.

I am still optimistic about the current low-power LED lamps. Low-power LED lights, the key is too much bad light, the price is not ideal. But now, more than for general lighting or power advantage. I think that the low-power LED lamps into the general lighting, and energy-saving lamps under a high, is a matter within five years. The high-power LED into the general lighting, it is certainly something other than five years. So now I focus on R & D and small power LED production. I noticed a small power LED is now used in general lighting lamps are LED lamp, LED honeycomb lamps, LED lamp. In particular, the LED lamp, from the second half of 2007, many people began to develop, can be extremely hot. Basically, I am now looking for eight people in ten are doing this, so I do start to do [] LED fluorescent lamp power supply [/ URL], do some time, so this talk about the power of R & D and production of general methods and principles. Individual experience to be above the bar.