The bright blue LED be long in coming (two)

White LED is currently more than 300 LM / W were used for white LED lighting is often based on high brightness blue LED, which can stimulate a fluorescent P, such blue light is converted into white light. These high quality LED life of up to 100 thousand hours, compared to the life of the fluorescent lamp is 1/10, while the life of incandescent lamp is about one percent. White LED cost decreased gradually, market is rapidly expanding. In the near future, the tricolor LED may replace the blue LED and the phosphor phosphor combination for the high brightness illumination, this technology will enable us to be able to carry on the dynamic control to the color composition. Now, we can see a variety of new colors in the LED market, such as light green and pink, etc..

In addition, in light of the world's total electricity consumption accounted for 20% - 30%, while the new white LED energy consumption is only ordinary light bulbs of 1/10, so the use of white LED can save a lot of energy for mankind. At the same time, LED's life span of 100 thousand hours, compared with the incandescent bulb for the next 1000 hours and the fluorescent lamp for the next 10 thousand hours, LED also helped save the material consumption.

Today, GaN based LED has become a lot of mobile phones, tablet PCs, computer monitoring equipment, TV screens, such as the key technology of the back illuminated lcd. Blu ray and ultraviolet emitting gallium nitride diode lasers are also used in high-density DVD, greatly promoting the development of music, pictures and film storage technology.

In the future, people may be able to use ultraviolet Gan Gan / GaN LED to purify water, because ultraviolet rays can kill bacteria, viruses and microorganisms DNA. In addition, the world's lack of power grids will be more than 1 billion 500 million of the population, the emergence of LED lights to bring them hope, because of the low power consumption of LED, some local cheap solar energy is sufficient for its power supply.

Although only 20 years old, but the blue LED has brought great benefits to human beings, also achieved the Nobel prize founder Alfred Nobel's Award for the benefit of mankind, is well deserved. The Nobel prize committee said in a statement about the winning achievements: "incandescent lights up in twentieth Century, then twenty-first Century will be illuminated by LED lights. "

LED in the end how far can develop, unknown. Maybe one day you'll be able to develop a X ray LED. Early LED can only be applied to the indicator, calculator display and digital watches, but now began to appear in the field of ultra brightness. High power LED devices are currently emerging LED products, mainly used in lighting, but the technology is still not very mature, mainly because of the high power LED while high brightness, but the heat is big, expensive "".

From 1907 the semiconductor pn junction theory, today LED technology is everywhere, experienced more than a century, numerous scientists including Akasaki Yong, Tian Ye Hao and Nakamura Shuji, made great efforts for the development of LED LED, the economic and social benefits will be incomparable.