Canyuan: price, packaging and cooling on the popularity of LED lighting speed

2010, the world's largest potential market for white LED market applications for the lighting market. But Dr. canyuan photoelectric research director Pan Ximing pointed out that at present there are still some problems in application, including the price is too high, the efficiency is too low, it needs to warm white collocation spectral region movement, and the factors affecting the price. It is expected that with the continuous development of LED technology, will help to improve the efficiency of LED, prolong the service life, thereby reducing the cost of LED lighting applications, accelerate the popularity.

It is understood that the LED in the lighting display applications has been more and more widely, especially in the signal lamp application, as a mature technology with LED signal compared with the traditional signal lamp saves energy by more than 85%, will completely replace the traditional signal lamp. However, there are still some problems in lighting application. Compared to 1000 lumens, the traditional fluorescent lamp price as long as $2, but the price of LED lights to $20, the price difference of 10 times, the relative speed of the impact of the application of universal. However, with the LED efficiency is expected to increase, the cost will be reduced. According to the company's research data, when the luminous efficiency is increased by 2 times, the drive current is increased by a factor of 3, the cost of packaging is reduced by half, the overall cost of LED lighting applications will reach a reasonable range. As for packaging, the efficiency of phosphors will also affect the overall efficiency of LED.

In addition, the cooling technology is also to extend the service life of LED, reduce the cost of the key. Because of the high power LED input power is only 15%-20% into light, the rest of the 80%-85% is transformed into heat, if the heat failed to timely discharge, the interface temperature of heat generated by the chip will be increased, the light output element is reduced, wavelength will be changed slightly, LED's life will be reduced. If the component temperature is reduced to 10 DEG C, the life of the component can be increased by a factor of 1.9.

Source: LEDinside