LED lighting breakthrough price bottlenecks need to solve the core technical problems

According to the comprehensive work plan for energy conservation and emission reduction issued by the State Council, the Development and Reform Commission promotes 150 million LED lighting products through financial subsidies. According to the relevant departments, the price of energy-saving lamps is too expensive to be solved. Indoor lighting involves thousands of households, LED lighting is truly popular after the indoor lighting market than the outdoor lighting market is even larger, LED used in indoor lighting, especially the atmosphere rendering, with any other light source in the past are unmatched advantages, but In the current domestic market, the price is still too high, and most ordinary people cannot afford it. According to LED analysis, the following causes are the main reasons that lead to LED:

1, domestic companies have no core technology

Most of the core patents in the upper reaches of the LED industry are in the hands of foreigners. We don't have the core technology. Although our LED application product manufacturing capacity accounts for 50% of the world's total, and our share accounts for 50%, the profit is actually the lowest one. .

LED chips use larger-size wafer fabrication processes as their processes and quantities increase, and will continue to reduce costs. In recent years, the annual speed has been reduced by 20%. In the LED chip price factor, the improvement of light efficiency is also included in the price reduction. At the same price, a better product was purchased. The cost of LED lighting is mainly in the LED chip. As long as the price of the chip is reduced, the lumen price of the LED can be reduced to the equivalent of the energy-saving lamp at the current stage, and indoor lighting will naturally bloom everywhere. LED chips also have a big price cut.

2, LED application products difficult to heat

The structural design accounts for about 20% of the lamps. China's hard-working people have always been pricing very low, 20% of the cost is considered reasonable, and the biggest problem is how to be more innovative and design more reasonable.

The heat dissipation cost must be maintained at 5%. The actual heat dissipation design is very simple. Take two directions: First, the shorter the path between the LED chip and the external heat sink, the better. The shorter the heat dissipation design, the better. Second, the heat dissipation resistance. That is, there must be enough heat to reach the path and at the same time, there must be enough “heat-dissipation path”. This part of the cost is mainly in the structure, not much for cooling costs.

3, LED application power is weak

Power supply is the weakest link of LED lamps, and it seriously lags behind the development of LED lamps. The quality needs to be improved. The design now accounts for about 20% of the cost of the luminaire, which is somewhat high. With technical development power is about 5-10% the most reasonable.

The high cost of LED, in fact, compared to other current light sources, as the LED industry invented the blue LED in the 1990s, which led to the realization of LED white light, the cost of its realization is not high. In particular, LED environmental protection, energy saving, mercury-free, and the price of LED lamps are declining every quarter, I believe we can reach people's acceptable level in a short period of time.

On the domestic front, it is expected that with the development of the upstream chip in the next 3 to 5 years, indoor lighting products will occupy 40% of the semiconductor lighting application products. This is very optimistic.