Nanjing: Zhongshan East Road on the newly installed LED lights

On the 22 day of the 2009 annual meeting of the association of Nanjing city LED technology development and application of venue, stakeholders Nanjing lighting Society said that with the development of technology, LED (light emitting diode lighting) is used as the illuminating lamp will represent the general trend, but because the price is relatively high, the future is still a long way to go.

5-10 replace traditional street lamp

Since April 28th this year, the Ministry of science and technology in 16 provinces, municipalities directly under the central government launched the "Ten City million" semiconductor lighting application engineering pilot work in the 21 cities. At present, many cities in the LED lights in the landscape, tunnel, street lamps have applications. Nanjing has just completed the Zhongshan East Road, all the landscape lights are also used LED. Industry insiders predict that in the near future, there will be light emitting body will be replaced by LED.

Take street lights, LED instead of the traditional street lights, is the trend, it is estimated that over 5 - 10 years can be taken. Experts said that street lights are an important part of urban lighting, the traditional street lamps often use high pressure sodium lamp, high pressure sodium lamp as a whole, the shortcomings of low efficiency caused a huge waste of energy. According to reports, the need for high voltage lamp lighting support, and because of the high pressure of the light is to the surrounding light, so 40% of the light will be blocked by the lamp. The LED does not diffuse light, light efficiency is higher than the high pressure lamp 80% - 85%. Some people have done calculations, high power LED street lamp energy saving effect significantly, instead of high pressure sodium lamp can save more than 60%. The reporter also learned that, at present in Nanjing Liuhe Longchi Lake installed, 100 LED road lamps, the effect is very good.

The price is expensive, but the value is good

A lot of people in the use of LED lighting, the higher price of it "at a respectful distance". At the forum, many people in the industry believe that the reason will be expensive, because the cost of LED light-emitting diode chip is very high. Take a watt white LED chips, the market to sell 20 yuan a. Experts said that many large companies are developing new chips, LED prices are expected to decline in a few years.

In fact, in some specific occasions, even if the use of LED lighting, but also better than the use of ordinary lights. "Experts give reporters an example: in hotels and galleries and other places, the wall is always equipped with a number of spotlights, they usually do not shut off for a long time. Now the spotlight is commonly used halogen lamp, this light will have ultraviolet light, will make the place where the irradiation appears to fade; there are infrared lights, will cause dehydration. So the value is not high. "But LED doesn't have ultraviolet and infrared rays, it's healthy for the irradiated objects, no harm. Experts say, more importantly, is the LED's high energy saving and high life. In general, the price of 100 yuan or so in the 3 Watt LED light is enough. With it, two months to save electricity to reach more than 100 yuan, the rest of the money is all you earn 'profit'. "

Real LED TV is not yet available

Thin, energy saving, colorful...... Recently, the various power brands have pushed LED TV, claiming a new generation of high-definition TV products. 22, LED technology development and application of the venue in Nanjing city in 2009 year, the famous semiconductor lighting expert Yang Haifeng, pointed out that the speculation "LED TV" is only a matter of fact LCD TV with LED backlight technology, LED TV is not real. According to reports, the current market sales of LED TV is not used LED screen TV, but only by the LCD TV backlight fluorescent tube replaced by LED light source, now LED TV accurately should be'LED backlight LCD TV. ". In the true sense of the LED TV, should be the use of LED panel tv. According to reports, compared to ordinary LCD TV, LED LCD TV, of course, has its advantages, such as backlight longer life, bright brightness, but does not mean that the latter must be stronger in terms of quality, panels, etc.. According to reports, the true sense of the LED TV should be the use of LED panel, is used as a light-emitting unit LED display color screen. Yang Haifeng said, now LED panel production technology is far from mature, mainly resolution is not enough, home LED TV products are still in the development, has not yet listed.