Steady expansion of semiconductor lighting applications

LED in the display, road traffic lights, mobile phones, landscape lighting, portable lighting and other areas of application has matured. The following is a brief introduction to the development of the 3 main applications in the near future:

1 car lights

Automotive signal lights and interior lighting technology has matured, and will soon be widely used, the next major growth point is the automotive headlamps. In 2007, Audi A86.0 first used LED as a car headlight. Audi R8 uses LED as the high and low beam light. TOYOTA LuxusLS600h uses LED as a low beam headlamp. In the summer of 2008, general Cadillac will also use LED as a high and low beam headlamp. The world's total production of 60 million cars a year indicates that there is still much room for growth in the market.

2.LED LCD backlight

2005, 3.5 inch LCD screen has been fully used LED backlight; by 2006, the use of LED backlight has reached 7 inches screen in; in 2007, the 11 inch screen has also begun to use LED backlight. In the future, 12 inches -15.4 inch notebook LED backlight will have greater growth. Currently, Apple Corp has announced that the company's production of laptops with LED backlight.

Because of the advantages of ultra-thin and power-saving, LED backlight will also be used in monitors and tvs. August 2006, Samsung launched a $3000 in Europe, 40 inch LED backlit LCD TV hundreds. OSRAM and Samsung have been made of 82 inch LED backlight R & D prototype, Osram was also developed into a prototype of a 102 inch.

In China, Hisense, BOE and SVA has 36 inch -46 inch LED backlit LCD TV prototype.

As a result, the annual output of 65 million monitors and 8 million flat panel TVs is a potential market for LED backlight.

3 semiconductor street lamp

At present, the application of LED street lamp market has already started, the reasons are as follows: first, in the middle of the visual condition, the sodium lamp light lamp, the efficiency of visual condition measurement efficiency than 30% lower, while LED is a full spectrum of blue and green part of efficiency will be greatly increased, so the total efficiency will be increased by 40%, at present replace the lamp energy saving 30%-50%, meet the national energy saving, emission reduction policy; second, long service life, free maintenance costs, because the small drive current, cable, transformer and the engineering cost is reduced; third, under white light visual sense and resolution than the monochromatic light (yellow light) increases fourth, due to low power consumption; and the driving voltage is low, and photovoltaic cells composed of solar street lamp; Fifth Street, by government departments and construction management, easy to popularize.

At present, many cities and even small towns, there is a demonstration project of semiconductor light street, a few dozen, a thousand more. There are more than 20 thousand domestic semiconductor street lamp orders, it is estimated that this year the country will reach 1 billion yuan output value. It can be said that this is a dark horse in general lighting. With the further improvement of efficiency and the continuous improvement of technology, there will be rapid development.

5000lm has launched a new strong semiconductor 135W street lamp, the total luminous flux. Yang Jie Technology launched 150W street lamp, greater than 8000lm, 20 months without a few light attenuation, and proved to be able to pass the international lighting norms.

There are about 200 million street lamps in China, which should be given special attention to the broad market, coupled with the export of some enterprises, the market outlook is more promising, large-scale application market in 2010 will start. At present the product in the initial stage, the main problem is uneven in quality, the heat is not good, not only the decrease of luminous efficiency and light, is a serious problem, and even failure. Relevant departments should pay close attention to standards, to reduce the thermal resistance decay test, before the full heat, achieves high efficiency and long life, and to cultivate the market and healthy development.

Source: China Electronics News