Utilizing LEDs to reach the future market prospects of automotive lighting

According to Korean media D-Daily, the total size of the LED market in 2018 is estimated to be about 24.9 billion US dollars, while the market for general-purpose LED lighting will account for 57%, especially in the business and residential sectors. The market is expected to create high growth rates.

The general-purpose LED lighting market is subdivided into replacement lamps, light bars and line lights, outdoor, industrial, commercial, residential, portable consumer devices, entertainment, retail display, Off-Grid (independent Power Supply type) ), safety protection and other types. According to the report of the industrial research institute, the commercial high-brightness LED lighting system has experienced phenomenal growth. In the long run, it will benefit from energy saving, environmental protection features and related taxation schemes. It will be greatly improved in commercial applications such as parking lots, offices, factory equipment, warehouses, etc. In addition, the application in the automotive industry has also begun to spread.

The automotive industry has been using red LED taillights since more than a decade ago, but the use of LEDs in automotive interior lighting and front lighting systems has only recently become popular. At present, the application ratio of LED is 70% in the internal indicator part of the car, 45% in the dashboard display backlight, 55% in the daytime running light, and about 5% in the headlight application LED.

LED headlights have their advantages. In general, LED headlights are illuminated between halogen lamps and HID xenon lamps, but the light is more concentrated and can be made into more types of lights. In addition, the LEDs are smaller in size and have higher freedom of operation, so that the car manufacturers can create various types and components according to their own models.

The proportion of LED headlights used is far less than the main cause of other parts of the car, or the price. In addition to LED, car headlights and incandescent, halogen, HID xenon lights and other options, but the price of LED headlights can be up to 1 times higher than the same level of halogen lamps, about 1.5 times higher than HID xenon lamps, the price is very Close to the people.

The main reason is that although the LED self-illumination does not generate heat, it still generates a certain heat when the bottom current passes, which may cause problems in adjacent components and connection lines and is dangerous. In order to be unaffected by other devices, LED headlights require a cooling system such as a heat shield or a cooler. However, the engine room installed in the cooling system must be maintained at a relatively high temperature for other purposes, becoming a difficult point in designing and manufacturing LED car headlights, and also a reason for the price being a lot higher than the HID xenon lamp.

Industry insiders pointed out that even if the era of incandescent lamps has gradually come to an end, the price of LEDs has dropped to the level acceptable to the average consumer. The efforts of LEDs to expand into the automotive industry will make the market growth of general-purpose LEDs more worthy of expectation.

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