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LED on the future of automotive lighting play a decisive role
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http://www.wphidled.com/
Sales Manager : Amy Feng
MSN : Amy@wplamps.com Email : Amy@wplamps.com
Alibaba: cn220020193 Phone: 0086-13126403867
Currently, LED has been applied to the automotive interior and exterior, especially in the automotive interior lighting, color LED applications have been very mature, such as for instrument panel, backlight switch, auto reading lamp or the rise of display systems, or car with "on-demand color selection" (Color-on-Demand) feature that allows car manufacturers to use their own unique identification by color to distinguish from other competitors, or use colors to distinguish between different series of products.
History of development of LED car lights
The development of automotive LED light source directly associated with the development. Semiconductor electroluminescence phenomenon as early as 1907 that, due to weak light, mass production difficult and slow. 1968 Monsanto introduced the light intensity over 20mcd GaAsp / GaAs structure, the red LED, this is a breakthrough point, greatly accelerated the development of LED. Then have developed a light intensity of 1000mcd red, yellow, green LED, the instrumentation, telecommunications signals received preliminary instructions on the application, the early formation of the LED application market. But because of its light intensity, light attenuation performance issues that can not be widely applied in automotive lighting. Until 1990 the United States, HP, Toshiba has introduced more than 1000mcd intensity of InGaAlP / GaAs structure, red, yellow high-brightness LED and the 1993 invention of InGaN/Al2O3 Japan Nichia blue and green high brightness LED as a symbol, from the technical and the mass production of automotive LED light source paved the way for.
LED lights for the first time in 1985 in passenger cars, the 1986 Nissan300zx automobile brake lights use LED automotive lamps LED marks the official start time. Well-known international brands such as BMW, Cadillac, Buick, Volkswagen, Ford, Mercedes, Toyota, Mitsubishi, Mazda and Skoda has introduced LED car lamps, etc..
LED car light double-digit annual growth rate in 2005, output value reached 546 million U.S. dollars, accounting for 14% of the world's LED applications. China in 2000 in Shanghai Volkswagen Santana 2000 on the first use of LED brake lights. China LED car lamps to 70% -80% annual rate of growth, the output value of more than billion in 2006.
Seven advantages of LED lights
LED and incandescent lamps had significant advantages. First, long life, usually ranging from tens of thousands or even one hundred thousand hours. Some people think that if the future of automotive lighting using LED, the entire period of use without replacement of car lamps. The second is very energy than equivalent incandescent brightness of at least saving more than half. Third, high-quality light, essentially no radiation, a "green" light. Fourth, the LED structure is simple, the internal support structure, surrounded by a transparent epoxy resin seal, good seismic performance. Fifth, no hot start time, the light response speed (ns) for fast moving objects in use. Sixth, for the voltage between 6-12 volts, can be used in the car. Seven are occupied by small LED, lighting designers are free to change modes, so that diversified automotive styling. Auto makers favor LED, LED is completely determined by its own merits.
LED lights in the future development of the automotive industry
Exterior automotive applications is also growing, brake lights, tail lights still turn signals, reverse lights, brake lights and so on have been applied LED, including brake lights, tail lights brake light application also larger. As the vehicle headlamp illumination, due to the need high-power LED, LED by technology and cost constraints, especially in the optical, electronic control, thermal management there are still some difficulties, universal need three to five years, the industry only in the number of luxury high-end models start applications. In addition to the current application of the more common rear lights, brake light, etc., will turn signals, reverse lights will be a large-scale application of LED. 2010, domestic market size of LED automotive lamps may exceed 10 billion yuan, 5 years, may form the output value of 3.0 billion per year. In 2009, according to iSuppli's "2010LED special report," 2013 about 95% of the world will be one or more new car taillights lighting the use of LED.
Currently, LED automotive lighting applications market sales, 10% per year to maintain the growth rate, but the proportion of domestic LED automotive lamps is not high. LED models use a larger concentration than in the high-end auto companies, and these car companies generally have limited the brand of LED, LED domestic enterprises more difficult access to their supply chain. Other domestic and international famous brands LED compared to the life and the uniformity of sorting possible problems some more, the same time, auto lamps strict market regulation itself, the threshold is relatively high, the car as luxury goods and sales upon the face of is one to one customer, any quality problems can lead to complaints of domestic LED no chance after a mass of experience in this market long term, it is difficult to achieve automotive LED standard. Automotive Lighting is a very specialized field, to make LED auto lamps, auto lamps, whether business or LED business, it alone will be difficult, need a car LED lighting business and adequate communication enterprises, especially in the car before the LED According to the development of the light.
According to statistics, China has a car capacity to 20 million households, China could become world's third largest auto market, accounting for 6% of global share, after the United States and Japan. By 2025, China's auto market will reach the size of the U.S. auto market. China has become the world's fastest growing car sales area. According to China Automotive Industry Association statistics, in 2009 domestic sales of 150 billion yuan lights, LED lights share of the market share which increased year by year, with Shanghai Koito Lamp Company, for example, in 2009 the total car sales of LED lights 11.7% of sales lights, LED lights in 2011, the proportion of sales accounted for lights will reach more than 15%, while the LED lamp sales in 2015 accounted for the proportion of light will reach total sales of more than 30%.
With the traditional lighting LED lights now there is a large difference in price, such as a high-end cars, incandescent lamp combined 120 yuan / sets, LED combination lights need 210 / sets. Therefore LED prices drop continuously improve the luminous efficiency and improved cooling technology is the future development of the growing LED automotive lighting the main focus. Although there are still some issues to resolve, but the LED small size, shock-resistant, energy saving, long life and other advantages, while giving the designer a broader design space, which are increasing the application of LED elements inside and outside the car. As technology continues to improve products, product categories continue to expand in the next car will be safe and intelligent direction.
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