Views:3681 Author:Site Editor Publish Time: 2019-10-14 Origin:Site
Car Light will develop in the direction of intellectualization, digitalization and individualization
In the next few years, the Light will develop in the direction of intellectualization, digitalization and individualization. Specifically, from the light source, the Light will gradually penetrate from halogen and xenon to LED and laser; from the optical system, the Light will gradually develop to matrix, high definition matrix and LCD; from the sensor, the front camera will develop to radar and lidar; from the function, the far-light assistance will be gradually increased. Anti-dazzling far-sighted, sign lights, pedestrian reminders and other functions.
The global car Light market is expected to continue to grow in the next few years. The global car Light market is expected to grow from $25.7 billion in 2016 to $35.9 billion in 2022. By then, the share of the head Light market will reach 65.7%. For China, due to the low penetration rate of LED, the large growth space, and the growth potential of the total sales of passenger cars in China, the expansion speed of the Light market is expected to exceed the global average level. We expect that in 2018-2021, the composite growth rate of the Light market scale in China will reach 9.5%, while in the same period, the composite growth rate of the LED Light market scale will exceed 15%.
1. Global Light market will continue to expand
Automobile Lights can be divided into two categories according to their different functions: illumination Lights and signal Lights. Lighting Lights can also be divided into external lighting Lights and internal lighting Lights. External lighting fixtures are installed outside the car, including headLight, headfog Light, reversing Light, license plate Light, etc. The interior lighting fixtures are installed in the interior of the car, including wall Light, ceiling Light, door Light, luggage Light, reading Light, etc. Signal Lights and lanterns are divided into external signal Lights and internal signal Lights and lanterns. External signal Lights include position lights, outline lights, steering lights, driving lights, brake lights, rear fog lights, etc. The internal signal Lights mainly include various kinds of instrument Lights.
According to the different light sources, car Lights can be divided into bulbs, halogen Lights, xenon Lights and LED lights. LED entered the car Light Market in 1986, the world's first LED brake Light came out, and then LED entered the tail Light, instrument Light, warning Light, daylight, fog Light, turning Light and so on. In 2007, Lexus LS600h launched the world's first LED headLight, so that the LED can be used in car lights.
Compared with traditional bulbs, halogen Lights, xenon Lights, LED has multiple comparative advantages, such as: energy saving, easy design, long life, etc. It is expected that in the next few years, LED will gradually replace halogen Light and xenon Light and become the most mainstream type of vehicle Light. Specifically, the advantages of LED Lights are as follows:
(1) energy conservation. Compared with the traditional halogen Light, the LED Light can greatly save energy consumption. Taking the taillight as an example, the power consumption of using the LED taillight is only about 4W. If using the traditional light bulb, the power consumption needs to reach 21W.
(2) Easy to design. LED is a point light source with small volume. Therefore, in the design, the shape can be more diversified to meet the diverse appearance needs of young consumers.
(3) Long life. Compared with halogen Light, LED car Light has a significant life advantage.
(4) Faster reaction rate. For traditional light bulbs, it takes about 0.2 seconds to delay from opening to lighting, but there is no delay for LED lights, which can be given to the rear car as a reminder at the first time.
(5) In the long run, it has cost advantage. In the short term, compared with halogen Light and xenon Light, LED Light has a higher cost. However, with the sharp decrease of raw materials (mainly LED chips), the price of LED Light will also decrease, which will have a significant cost advantage (at present, the cost of some LED headLights is almost close to xenon Light).
With the rapid increase of LED Light penetration and the gradual acceptance of adaptive headlights and OLED taillights, the global Light market is expected to continue to grow in the next few years. According to Yole's estimation, the global Light market will grow from 25.7 billion US dollars in 2016 to 35.9 billion US dollars in 2022. By then, the proportion of the headLight market will reach 65.7%.
For China, due to the low penetration rate of LED, the large growth space, and the growth potential of the total passenger car sales in China, the expansion rate of the car Light market is expected to exceed the global average. We predict that in 2018-2021, China's car Light market will grow at a compound rate of 9.5%.
2. The new trend of automobile development brings about the change of car Light demand
2.1 The new development trend of automobile makes the automobile Light industry change dramatically.
Intelligence, networking, electrification and personalization are gradually becoming the development trend of the global automobile industry. The new development trend will make the automobile industry change dramatically in the next few years or even decades. This change will also have a far-reaching impact on the Light industry: the trend of intellectualization and networking requires more intelligent Light, clearer illumination effect and more interactive functions; electrification requires more energy-saving and power-saving Light; personalization requires more brilliant lighting effect and more identification.
From the light source point of view, the Light will gradually penetrate from halogen and xenon to LED and laser; in the optical system, the Light will be developed from mirror, projector to matrix, high definition matrix and LCD; in the sensor area, it will be developed from front camera to radar and lidar; in the function, AFS, far-sighted assistance, anti-dazzling far-sighting, sign Light, pedestrian reminder and other functions will be gradually added.
2.2 Intelligence and digitalization of automobile intelligent driving Light
Intelligence is an important development direction of car Lights in the coming years.
The primary automatic headLight is usually referred to as AFS (Adaptive Frontlighting System), which mainly uses the steering angle, speed and other parameters of the vehicle, and realizes the multi-directional regulation of the headLight through the dimmer, thus achieving specific functions.
AFS usually has a variety of modes, such as high-speed mode, bend mode, town mode and so on.
In the high-speed mode, by raising the headlight, the low-light can illuminate a longer distance, which can make the driver have a wider vision.
In curve mode, AFS can modify the headLight position according to the movement of steering wheel and the change of vehicle's moving direction, so that the headLight can better illuminate the roadside and curve.
In urban mode, the lighting is broader than the basic near-light illumination, which can effectively improve the driver's vision on both sides and prevent pedestrians from suddenly rushing out. It can be realized mainly by rotating the left and right lights to both sides of the road, or through the light distribution design of the light guide in the headLight.
The advanced form of automatic headlamp is usually called ADB (Adaptive Driving Beam), also known as the adaptive high-light system, which can automatically change the distance, angle and area of the high-light according to road conditions. ADB usually controls the light beam by adding a light shield in the lamp or relying on LED particles which can be turned on and off separately.
The use of adaptive headlights can effectively reduce the probability of vehicle accidents at night, and provide effective protection for other traffic participants on the road while ensuring their own safety.
We anticipate that with the rapid decline of ADB cost (the prices of LED light source and electrical components are dropping rapidly), and the improvement of relevant domestic regulations, ADB is expected to become one of the important configurations of passenger cars in the next few years.
Digitalization is another important development trend of car lamp.
With the development of automobiles towards networking and intellectualization, the demand for human-vehicle interaction and vehicle-vehicle interaction will increase significantly, and the development of high-definition technology provides the possibility of digital headlights. High-definition digital headlights can achieve a variety of interactive functions, but also provide a cornerstone for the development of intelligent driving.
The main features of HD digital headlamp are as follows:
Automatically increase exposure range at low speed
Automatic change of light pattern in bad weather
Optical tangent adjustable
Adjusting the shape and intensity of the beam according to its velocity
Highlighting the "Walkway" Area
>>Projection auxiliary optical Lane
Highlighting Driving Path
Projecting navigation information on the road...
3. LED headlights are in the initial stage of rapid development.
3.1 LED headlights are in the initial stage of rapid development.
In 2007, full LED headlights were first used in the luxury vehicle - Lexus LS 600H hybrid vehicle. With the maturity of technology and the reduction of cost, the first full LED headlights were used in mid-level cars in 2012. So far, the LED headlights have entered a period of comprehensive development.
The decrease of LED lamp cost is mainly realized by the progress of LED technology. Taking multi-chip LED as an example, in 2007, its luminous efficiency was only 30 lumens/watt, while in 2014, its luminous efficiency exceeded 110 lumens/watt by using new technology.
As the cost of LED lamp drops rapidly, its advantages over xenon lamp are gradually highlighted, which makes the market scale of LED lamp expand rapidly, and the expansion of its
scale further reduces its manufacturing cost, thus forming a virtuous development cycle. At present, the cost of LED headlamp is almost the same as Xenon headlamp. It is expected that the cost of LED headlamp will be further reduced in the next few years (Chapter II detailed analysis). Therefore, it is expected to gradually replace Xenon headlamp and halogen lamp, and the permeability will increase year by year.
3.2 LED headlights will be stratified
In the future, while the penetration of LED headlights will be greatly improved, the configuration of LED headlights will also be different according to the brand positioning of passenger cars and different types of vehicles. It is expected that entry-level LED headlights, advanced LED headlights and matrix LED headlights will coexist at that time.
The entry-level LED headlights have only basic optical modules, simple drivers, and may even omit lenses. The advanced LED headlights will have basic intelligent attributes, while the matrix headlights will be more intelligent. Different levels of LED headlights have different value. We expect that by 2020, the cost of entry-level LED headlights will be reduced to 500 yuan per unit, while the cost of matrix LED headlights is expected to be 2500 yuan to 5000 yuan per unit.
This trend has emerged from some models listed in the market from 2017 to 2018: the new generation Buick Regal in July 2017 has been equipped with matrix headlights; the compact class car listed in June 2018, brand-new Baolai (with a guided price of 1128,000 yuan), is fully equipped with LED headlights (without lenses) and Geely Murray (with a guided price of 788,000 yuan) in August of the same year. LED headlights are used in most configurations.
3.3 Matrix LED headlights are expected to rise rapidly
Matrix LED headlamp is composed of several lighting zones, each lighting zone contains several LED beads, each lighting zone can be illuminated and controlled separately. The more the number of zones, the higher the accuracy of the lighting, the better the illumination effect can be achieved. At the same time, the more difficult the control of the system is, the higher the cost is.
The main characteristics of matrix headlamps are as follows:
Prevent dazzling cars
Far exposure makes driving safer
The reaction time can be increased by 1.3 seconds for every 30-metre increase in irradiation range.
Intelligence of the system can alleviate driver fatigue.
3.4 The market scale of LED lamp in China is expected to expand rapidly.
According to Osram's calculation, by 2023, the global penetration rate of LED headlights in passenger car market will exceed 45%, of which, matrix LED headlights penetration rate will exceed 10%. We believe that the penetration rate of LED headlights for new cars in China is expected to exceed 50% by 2021, and by then, the penetration rate of matrix LED headlights is expected to exceed 5%.