Currently, LED lighting and large-screen LED backlighting are two of the most promising emerging markets in LED applications, especially LED lighting, which is closely related to people's livelihood, because of the high level of government policy support. Under the impetus of all parties, despite the current domestic LED lighting technology, there are still many inadequacies such as low conversion efficiency, unfavorable light decay, high price, poor heat dissipation, and lack of standards. In order to lay out the market as early as possible.
From the above indicators and data, the domestic LED lighting market seems to have been vigorously launched. What is the status quo?
The gap between dreams and reality: both types of technical solutions are blocked
Throughout the domestic LED lighting market, it can be found that the real hot, only the decorative lighting, flashlights, small lamps and other small and medium power LED lighting market. Because the market does not require high light efficiency and color rendering index, the function is easier to implement. At this stage, the domestic power supply manufacturers involved in LED lighting, the majority of shipments of this type of small and medium-sized power products, monthly shipments are basically in the KK level / month.
Market research firm StrategiesUnlimited predicts that by 2012, the LED lighting market will exceed $5 billion. LEDinside, a market research organization, said that with the launch of large-scale international events such as the Olympics, World Expo and Asian Games, the scale of China's LED lighting market will grow rapidly from RMB 4.85 billion in 2007 to RMB 9.81 billion in 2010.
High-power LED lighting applications can be divided into two categories: one is the replacement solution, which is designed to be compatible with the currently widely used energy-saving lamps and incandescent lamp holders. When users choose LED lighting fixtures, they do not need to use them. The current stage of lighting circuit transformation, can be directly replaced by LED lamps can be used, representative products of such programs are LED bulbs, LED fluorescent lamps, etc.; the other type is non-replacement, that is, when using LED lighting fixtures, it needs to follow its DC The special principle of power supply is a new circuit layout. The representative products of this type of scheme include new energy LED street lights.
However, in the development of these two types of lamps, they have encountered their respective bottlenecks. For example, LED bulbs, as one of the alternatives, have a large market share in the civilian market. However, in the view of Huang Chaogang, CEO of LED driver chip manufacturer Quanxin Electronic Technology Co., Ltd., the shape of the lamp holder limits the size of the LED lighting power module. "In such a small space, plugging in AC/DC, DC/DC, protection circuit, and driver chip is not an easy task. Because the size is extremely limited, the manufacturer can only satisfy the function and give up some of the performance. In part, it is often the most critical circuit protection module, which leads to many EMI/EMC substandards for replacement LED bulbs. It is difficult to improve the conversion efficiency of power modules, and some even have security risks.†Huang Chaogang said.
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