LED automotive applications car dashboard or full LED?

LED lights market can be divided into two blocks, interior and exterior. The so-called interior, refers to the application of the car interior. From the late 90s, LED began to be used in the interior area, as we all know the dashboard. Dashboard is the first of some ** bulbs, LED appeared because of the rich and colorful colors, and soon replaced the light bulb. By 2002 and around 2003, with the maturity of high power LED, LED began to fully enter the automotive market. Currently led in the dashboard penetration rate close to 100%, with a small light bulb car has been very small. The next few years, should all the car dashboard will use LED.

Another car interior application refers to some non-functional lighting , such as seat lights, door handle lights, reading lights and so on. Before this type of product will be 3-5w light bulbs, but in order to meet the energy saving needs, so the EU and the United States from two or three years ago led to replace the car interior lighting bulbs. And this led the application of wattage to be greater than the dashboard, the dashboard is currently mainly about 0.1w red or yellow or white led lamp beads, if this application, the basic white-based, the power will be 0.5- 1w or so, the entire output value will increase. There is a piece of air-conditioning controller , touch screen, etc. will be used led.

Interior LED is already a very mature market, the annual growth rate may be a few points or so. According to the data of 2013, the market size of interior and exterior is basically the same, the market size of 14-year exterior is more than the interior room, and the development of exterior room is faster.

Then talk about exterior, exterior relative to the interior of the LED quality requirements are higher. First, the outer chamber will affect the safety, so there are laws and regulations, no regulations within the chamber. Automotive industry LED has its own certification laws and regulations, that is, aecq 101.

This regulation regulates all components used in automobiles for LEDs. It requires high and low temperatures, dry humidity, and the like, and the entire lamp must comply with this regulation.

Exterior lights include overlight and rear lamp two parts, overlight refers to the front light, rearlamp refers to the taillight. Rear lamp is the earliest and most universal exterior product. Rear lamp mainly include such several products, the first is after the combination taillights. This product is used in red and yellow LED, low cost, universal application of fast. From 06-07 onwards, the car began to use LED rear taillights. The second is the high brake lights. The popularity of led the lamp is also very high, at present more than 80% of the high brake lights are the use of LED. The third is the license plate lights, rear fog lights, reversing lights and other lights. From the past two years, LED penetration rate is also rapidly increasing. The power led by this piece is relatively high.

Overlighting refers to the forward lamp, the LED penetration rate to increase more slowly. This is the use of high-power led white light, high cost. From the performance point of view, the front light is relatively bright, but also the requirements of the led light distribution is relatively high. Therefore, the light bulb factory led technology from the traditional accumulation, research and development will take time, certification cycle is relatively long. The first models with LED forward light probably appeared in 2006, and were high-end models such as Lexus and Audi, Cadillac. The real development of forward light is the EU legislation to install daytime running lights, daytime running lights must be on after the car engine is turned on, so the life expectancy is relatively high. Ordinary LED lights generally use halogen, halogen lamp life of less than 1000 hours. EU mandatory traffic lights in 2011 must be installed, North America is 12 years, there is no mandatory legislation. From the depot's perspective, the cost of daytime running lights will not increase too much, but consumers may be highly receptive. We all know that domestic brands with foreign engines, the performance is still a gap, but if it is still more than the shape and lighting space. The enthusiasm of the domestic independent brands is still very high, and the penetration rate has rapidly risen. Others like turn lights, near and far lights, headlights and other led penetration rate from 13 years there has been a rapid increase in the trend.

Globally, halogen lamps in the light of about 13 years accounted for about 80%, HID xenon headlamps probably account for about 15%, led accounting may be about two points. However, the development of LED in the next two to three years may be very fast. We know that Mercedes-Benz, BMW, Audi's high-end models are basically used LED headlamps, 15-16 years of 100,000 -20 million level cars will be large-scale use of LED. By 2020, we expect LED headlight penetration will increase to 20%, hid will shrink to 10%, halogen will remain at about 70%.

In the field of DRL (daytime running lights), LED13 annual loss rate is about 30%, halogen and light bulbs 20%, and 50% of the vehicles do not use DRL.