Look at the village repair two eight forecast catch the next LED lighting outlet

Nakamura Shuji, for LED people, the name is familiar. As the inventor of the high brightness blue LED, he occupies an absolute right to speak in the field of LED, especially in the wake of the Nobel prize in physics last year, his words and deeds are affecting the direction of public opinion in the LED industry.

For the next generation of lighting technology, Nakamura Shuji in recent years published a variety of forecasts, or laser lighting, or optical communications, or laser diode......

Xiaobian for you as a lighting finishing in the village of Mr. predictions, can see from grasping the next lighting outlet.

Shuji Nakamura

1 "LED next breakthrough is phase congruency"

Recently, the Taiwan science and technology elite Leaders Forum held on the eve of the press conference, Nakamura Shuji said the LED industry optimistic about the prospects, but the manufacturers of components is difficult to profit, the industry should be in system development. At the same time, the next breakthrough in LED is phase congruency, so that light can be transmitted far.

2 "laser diode can achieve more efficient lighting"

In September 3rd, Nakamura Shuji was invited to Taiwan to speak, he analyzed the key development trend of solid-state lighting technology in speech: in addition to making use of "GaN on GaN LED purple" technology, and then produce more pure luminescence consistent, uniform white light, laser lighting will be the key industry development.

Compared to LED, Diode (Laser, LD) to achieve more efficient lighting, in the near future there will be considerable market.

3 "the use of blue LED white LED will disappear sooner or later"

In July 24th at the "GaN off the energy revolution" seminar, Nakamura Shuji pointed out that the peak intensity produced by the blue LED white LED blue light is high, easy to cause sleep disorders, the so-called "blue".

At the same time, Nakamura Shuji also stressed that InGaN is indeed a miracle material. Without this material, you can not achieve high brightness blue LED. Through the use of InGaN (indium gallium nitride) in the light-emitting layer of the "double heterostructure", only to achieve a practical level of brightness of the blue LED.

4 LED next killer application is optical communications"

In April 9th, Nakamura Shuji said in a keynote speech at National Chiao Tung University, LED next killer application is optical communications (LiFi). Existing communications, fiber optic cable communication with microwave wireless communications (such as WiFi), but the 2 major drawbacks of WiFi is vulnerable to interception, microwave harmful to the human body.

5 optimistic about the development of LD laser lighting and GAN substrate"

At the beginning of April, Nakamura Shuji visited Taiwan in the area that the expected future GaN on GaN (Dan Huajia Dan Huajia will be the growth substrate) is a major breakthrough in the above areas, long LD, LED will have better efficiency than the previous achievements and. However, the current GaN substrate costs are still high, far higher than the sapphire substrate.

In addition, Nakamura Shuji believes that the efficiency and quality of LD laser lighting will be better, the current cost is still high, it may be three years to about five years to be able to commercialize.

6 "lasers will replace LED"

December 8, 2014, held in Stockholm University, Sweden, Nobel memorial speech, said that the existence of the blue LED light efficiency decline, the higher the brightness, the more difficult to improve efficiency. The laser does not exist this problem, compared with LED lighting, laser lighting can achieve very high efficiency. He expects laser lighting to replace LED lighting in the future.

7 to promote energy conservation in purple LED"

In October 8th, Nakamura Shuji led his own (LED) SORAA venture company held a press conference, expressed the hope that through the popularity of the purple LED manufacturing company to reduce energy consumption, in order to solve the social problems. Purple LED with less energy to achieve the same brightness as the blue LED, it is expected to achieve significant energy saving effect.

8 "laser lighting or into the next generation semiconductor lighting"

In November 11, 2013, Nakamura Shuji at the tenth session of Chinese International Semiconductor Lighting Forum (CHINASSL2013) during the on-site report, pointed out that LED is better than Gan sapphire substrate, and the cost is decreased, which can meet the requirements of the existing LED technology, the current density can be increased by 10 times higher than before, the quality of lighting. At the same time, the use of Gan can also be used to improve the efficiency of the non polarized and semi polarized plane.

The next generation of semiconductor lighting may be laser illumination, although there is no large-scale use, but the LED lamp and the laser light, decrease the efficiency of small, increase in the current density, so the laser lighting will be a development trend in the future.

In Nakamura Shuji seems, if the sapphire substrate products as the first generation of solid lighting, then the GaN substrate products is the second generation, and laser lighting is the third generation of products.

But the three generation of lighting products do not exist completely replaced, because they have their own strengths and focus areas, there is no technology to meet all the lighting needs.

Moreover, the field of solid-state lighting will continue to produce new light sources, including OLED, quantum dot technology, etc., but any kind of light source is a station for the development of lighting technology, will not be the end of this development.

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