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In recent years our country with old change new LED light bulbs and lanterns, the momentum of development is very busy and get the people's support and recognition, but also be aware of with energy-saving and environmental protection products can make our life more environmentally friendly, but also can reduce the corresponding cost of living by 2015, high brightness (HB) led the market size is expected to will reach $202 billion, since 2012 the compound annual growth rate (CAGR) will reach 30.6%. One of the important application areas of this significant growth is to provide a LED for thin film transistor (TFT) liquid crystal display (LCD) to provide a backlight. Applications include the use of high definition (HD) TV and portable tablet PCs to automotive displays and a wide variety of handheld communication devices. However, in order to maintain such an impressive growth rate, such not only must provide higher reliability and lower power consumption and more compact dimensions, must also make some improvement in contrast ratio and color accuracy. In addition, in the automotive, avionics and ship display, all these improvements must optimize, and have to suffer from sunny to night of the month of various lighting conditions in the environment in addition, according to the LED industry sources: "amazing growth in for commercial use of high brightness LED lighting system; this is because in the majority of consumers eyes, LED lighting for home was still too expensive. The long-term advantages, the characteristic of energy saving and environmental protection, and related tax cuts preferential policies by, commercial areas in the use of LED lighting will have substantially growth. For example: parking, offices, factories and warehouses. LED lamp can not only replace the high-pressure sodium lamp, halogen lamps and incandescent lighting and in some cases can also replace CFL and fluorescent lamps.

Since the total electricity consumption in the commercial building lighting generally accounted for 25% to 40%, so commercial applications in the transition to the LED in the leading position, this does not make people feel surprised. Because this kind of application needs a long time of high intensity light, so it can save electric energy in relatively short period of time to achieve satisfactory economic returns. Secondly, LED lights long life heavy reduced the cost of replacing the bulb. These replacement costs not only include the price of the lamp itself, but also in some applications (for example: high bay lighting) in the actual replacement of the lamp is also very huge artificial cost. In turn, for the purpose of general LED lighting for the family is still too expensive for most consumers. However, in the next few years, with the increase in the price of LED lights and the increase in popularity, the residential sector in the lighting market will also achieve substantial growth. Most analysts expect this market segment will accelerate growth in 2013 and beyond.