Automotive light sources occupy an extremely important position in the field of lighting, and their output accounts for about 10% of the total output of the entire lighting source. Before the general lighting LED technology is still mature, the automotive market is the most promising LED market
Application field
The LEDs for vehicles can be divided into external use and internal use of the automobile. The interior includes instruments, instrument panels, air conditioners, audio and other indicators and internal reading lights; external use includes third brake lights, tail lights, direction lights, side lights and so on.
At present, almost all car manufacturers using LEDs in the whole car are European companies. In terms of LEDs for external lighting, the ratio of the third brake lamps to LEDs in European and Japanese cars has exceeded 80%.
At present, in addition to the car headlights, there are only a small amount of problems such as distance and brightness. It is common to use LEDs for interior and exterior lighting of automobiles. According to foreign surveys, the global automotive LED market will reach US$3 billion in 2004, with a compound annual growth rate of 80%.
China has already stipulated that all vehicles on the expressway must be equipped with LED fog lamps. In the future, after the LED price gradually declines, other lamp modules will inevitably use high-brightness LEDs as the light source.
market prediction
The main growth driver of LED in the automotive market is to replace the original indicator light and bulb lighting. If a car is replaced by LEDs, about 200-300 LEDs will be used inside and outside. In 2005, China's automobile production and sales increased by 20% over the previous year, and the total amount of production and sales exceeded 5.7 million, of which the production of cars reached more than 2.2 million. According to the current LED level, it is estimated that a car needs more than 300 LEDs. It is generally believed that automotive LEDs will become the main market for LEDs in 3-5 years, and will form an output value of about 1 billion yuan per year. The market will grow rapidly with the breakthrough of LED technology.
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