标签：super led

Price threshold for super led

“Although we are very seriously in the tender, but the main effort will focus on the promotion of the general energy-saving lamps.” Successful LED Down light project’s Xiamen Topstar Lighting, head of marketing, told reporters that, even with the financial subsidies, but the current price of super led, it is still a certain distance entering into the homes of ordinary people. “Unless those families just need to use LED lights, or affordable energy-saving lamps are more easily extended, after all, the big gap price shows here.”

Price threshold for super led

It is understood that the bid price of the energy-saving lamp enterprises in this year slightly are higher than last year. In the Household energy-saving lamps, the winning products are ranging from 5W to 24W. Take the enterprises in Fujian Province for example, the lowers price is RMB7/unit, and the highest price is RMB13/unit in the bid. In accordance with the provisions, these energy-saving lamps will be promoted the sale by state subsidies. Subsidy funds will take an indirect way of subsidies, and supply to the end users.

According to the subsidies in previous years, the users of urban and rural residents each lamp were given 50% subsidy, that Fujian residents purchase price of financial subsidies for energy-saving lamps “this year will from $ 3.5 to $ 6.5. But Last year, after subsidies, the cheapest is 3.2 yuan/unit only. The Fujian Province explanation is that the sharp rise in phosphor powder lead to the rising cost of energy-saving lamps.

In contrast, because of the rigid material price decreasing, coupled with the fierce market competition, although super led lights are more expensive than energy-saving lamps for the first time, yet comparing the same product of the same period last year, the price has dropped more than 30%.

LED Insiders said that the bid price is still low compared with the market price, but still higher than the energy-saving lamps, because of the high production costs of LED lights. So far, the state has not been announced subsidies range of super led lights, but 50% of urban and rural residents will enjoy that subsidy, and the cheapest will be RMB17.5/unit.

solar street light system and super led

Beginning of this century to start a revolution of light, and have spent over a hundred years of the incandescent lamp (Incandescent Lamp) and fluorescent (Fluorescent Lamp) is about to walk into history. In the next few years, LED lights will become the lighting (lights) and display (eg, television) mainstream. 2009, the global LED output value of about $ 7.6 billion, Japan is the output value of the first countries, Taiwan, compared with the largest output

solar street light system and super led

Taiwan semiconductor manufacturing Kingdom, also has the most MOCVD crystal growth machine. Taiwan wave of momentum in this sparkling revolution ascribed LED largest chip production host country. But like a CD-ROM of the past and present of DRAM must pay expensive royalties, LED patent subject to the foreign companies. “Smile curve” so that the profits of large foreign companies patent is much larger than the value of hard production LED.

LED brightness will decrease with increasing temperature, its life will be more acute, according to shorten. Downstream of the LED’s heat sink is mostly made in aluminum and its copper circuits are based on the adiabatic epoxy (Epoxy) separated by insulation. Epoxy resin of the thermal conductivity (0.5 W / mK) than aluminum (275 W / mK) the low hundreds of times, the LED chip generated heat is long poly difficult to loose. DTC higher than the copper heat transfer coefficient (400W/mK) DLC (500 W / mK) insulated copper wire, so you can achieve significant cooling effect (Figure 6 to Figure 14). DLC coated printed circuit board (Print Circuit Board, PCB), has been supplied to the number of Taiwan’s LED manufacturers, more production and the amount of the MSC crystal diamond companies in China.

The current white LED blue light excitation of the yellow phosphor (YAG or TAG) and complementary composition of white light. The phosphor mother (Carrier) often oxides, while the light source (the Activator) atoms for the rare earth elements (eg, Ce, Eu). Oxides for the polar compounds (Ionic Compound), it will absorb moisture and deliquesce. What is more, the light atom is too large so that the mother combined with the key can not, at a high temperature, large atom diffusion (Diffusion) and Segregation (Segregation) emitted light scattered aliasing. In addition, the concentration of light atoms in the mother’s body is not high, the phosphor absorbed luminous intensity.

Super LED’s dream come true, the phosphor can be switched to the nitride. Such as (In, Ga) N for the mother and the light source. Then adjust the In and Ga ratio can be any light color red, green, blue and their combinations, including white. This UV PL (Photo Luminescence, PL) transcended the traditional phosphors must be powder thinking Framework (Paradigm) instead plated multilayer light epitaxy by MOCVD plus on in UVLED chip can.

Conclusion
Prelude to the mainstream technology of LED light revolution, the real breakthrough is made of high-powered super LED UV light source. Diamond Island wafer as a bridge to high-pressure diamond synthesis technology and vacuum vapor-phase synthesis method combined manufactured super LED, including the diamond LEDs, AlN / the Diamond of cBN / the Diamond LED of AlN / of cBN LED and other yet to be developed the the next generation of LED products. Starting point, in-depth diamond technology leading diamond made of the world’s first island of the wafer, so that you can super-large-scale production of LED. Taiwan’s LED technology companies can develop this leapfrog technology, Taiwan’s LED industry can not only get rid of the curse of the “smile curve” to Taiwan from the silicon island to upgrade to Diamond Island.