Analysis of the market development of LED lamps used in automobile industry

About application of LED lamps in the automotive lighting market is recently very popular topic. With the development of compound semiconductor materials, LED has been developing rapidly, has developed a high brightness red light, yellow light, green light of different wavelength light emitting diode, the intensity is close to 1000mcd, and is widely used in digital display etc.. The main problems in automotive lighting are the stability, consistency and luminous intensity of LED.

1990 America HP company, Japan Toshiba successfully developed GaAsP/GaAs red, yellow high brightness LED (1000mcd), the success of the 1993, 1995 Japan Nichia chemical company developed InGaN blue, green and white high brightness light-emitting diode (1000mcd), the two revolutionary scientific research for automotive lamp comprehensive LED pave the way of. However, the higher cost of LED automotive lamps. The main problem is that it is the quality and quantity issues, the quality and quantity of the problem will be resolved after the price will naturally come down, but also can not expect LED to fall to the same price as incandescent lamps. The advantages of the LED light source can meet the vehicle safety, comfort, luxury, energy saving and environmental protection and functional requirements, the lamp of high quality can not only improve the level of automobile, but also enhance its market competitiveness. LED car lamps will replace incandescent bulbs like the original incandescent bulbs instead of candles.

LED lamps used in automobile industry market development analysis

LED lamp model and intelligent is the international automobile electronic products is one of the most dazzling. Automotive lamps are the eyes of the car, a set of practical automotive lighting and decoration as a whole. It can best reflect the quality of the car, the more personalized cars, luxury cars, the more attention to the design and quality of the lamp. At present, the international high-end cars such as new cars, Cadillac BMW, TOYOTA, Mercedes Benz and Ford have launched a variety of LED lamps with a riot of colours to attract customers, not because the price is affected by the.

The second half of 2004, China's automobile high growth rate, unprecedented fierce competition of automobile market, new style, a new type of continuously launch, accelerate the development of new LED lights. Shanghai Automobile Electronic Engineering Center and Shanghai Si company started to develop 25 LED lights in 2004, 2005 is expected to exceed 30. One of the most important is the TOYOTA, GM and Chery and other vehicle manufacturing companies put forward 4 models of the needs of 7 kinds of LED signal lamps, which marks the LED signal lamps into a new stage.

From the present situation and development trend of lamps Technology LED, LED high brake lights in China to further popularize, prices fall steadily, LED brake lights, turn lights and fog to start the commercialization, LED auto lamps to the development of personal and artistic direction, while the LED intelligent control system is developing very fast. The current focus on the direction of LED auto lamps is white LED lights and front headlights, LED and AFS (adaptive lighting control system) with the efficient, high power, high reliability LED element research, light and special cooling technology and optical design is the key.

Auto lamps have high requirements on LED element properties, there are three main points: one is the high efficiency, high power and high reliability (-40 ~125 DEG C); two is the electrical and optical parameters of stability, consistency must be high, as a number of components of the threshold voltage is less than 0.1V, monochromatic well, the color is less than 5 nm; the three is the LED element in the 136V after 2000 hours (DC light work) after the test, the luminescence intensity attenuation is less than 20%.

In the next 5 years, the rapid development of China's LED lights will, will form an annual output value of 1 billion yuan in recent years, will form the annual output value of 3 billion yuan within 5 years. At present, the car with the LED element market, American Lumileds, German Osram with high quality, multi species occupy the majority share of the development of enterprises in Taiwan and China's Pearl River Delta and Yangtze River Delta region in China soon, has significantly improved in the past two years to win a certain market quality, cheap, but in high power LED there is a big gap.