Source: AMS Osram Author: AMS Osram

    According to TrendForce consulting analysis, as of 2023, the global penetration rate of LED headlights in traditional passenger cars has reached 72%, and in the field of electric vehicles, the ratio is as high as 94%; By 2024, these figures are expected to rise to 75% and 96%, respectively. With the development trend of digitalization, intelligence and new energy vehicles, the automotive lighting market is experiencing a shift from simple lighting functions to more complex intelligent expression needs.
   "In today's automotive lighting market, in addition to the urgent need for cost control, innovation is a key force driving the market forward." Recently, at the 12th China Hard Technology Industry Chain Innovation Trend Summit and 100 Media Forum hosted by EEVIA, AMS OSram Senior Marketing manager Luo Li said, "As a leader in the field of light sources, AMS OSram is fortunate to use photons as a medium to build a bridge between intelligent vehicles and end users (including drivers, passengers and road users). "

    The high beam is usually easy to cause visual interference to the driver, but the close of the high beam is easy to cause limited vision of the driver, both of which may affect driving safety. However, the new non-glare high beam actually achieves the active ADB effect, which automatically turns off the high beam of the opposite car driving position and pedestrian head dynamically like "matting" when meeting the car, reducing glare interference to other road users while keeping the high beam on, and greatly improving driving safety (see the left picture below).

    This is what AMS OSRAM's EVIYOS 2.0 headlight solution offers. EVIYOS 2.0 is the industry's first combination of light and electronics LED, in only 40mm2 curved surface, but "compressed" an amazing 25,600 pixels, and each only micron pixel can be independently addressed switch, to achieve extremely fine lighting control, leading the development of the industry.
    According to different driving scenarios and road conditions, EVIYOS 2.0 can also realize the functions of welcome projection, lane change light blanket guidance, lane keeping auxiliary warning (see the picture on the right of the above figure), wet road warning and so on, which further enhances the safety of driving. Among them, the variable channel light blanket, which provides auxiliary lighting and warning information through projection, is also a popular application scenario with strong consumer perception and easier landing.
   In addition, EVIYOS 2.0 applications can also be extended to commercial and industrial areas to achieve high-quality dynamic lighting. Whether from the power, volume, weight and cost and other technical performance indicators and practical application effects, EVIYOS 2.0 has shown a strong competitiveness, is expected to promote the entire lighting industry to a higher level of intelligent, personalized direction.

Colorful atmosphere OSIREE3731i, link emotional environment
    The car is changing from a means of transportation to a "third living space", and the comfort and interactive experience of the in-car environment has become a new focus. Light is no longer only used for lighting, but also plays an important role in information interaction and emotional links. For example, the music rhythm of the atmosphere light, or the prompt with the change of driving mode, the intelligent recognition of the user's mood to adjust the brightness and tone, or according to the change of the driving environment outside the car to send a prompt signal, and the integration of intelligent surface technology to create a richer application scenario.
    This trend has LED to a significant increase in the amount of LED in the car (particle number). Lori pointed out that the number of leds in many models today has exceeded 200, and some have even reached more than 400. In this case, car manufacturers or lamp manufacturers are faced with the challenge of how to find a balance between cost control and the number of leds. At the same time, when a large number of RGB leds are used, how to ensure that the color mix is uniform and harmonious, and how to prevent delays or color inconsistencies when the leds provided by different suppliers change colors has also become a technical problem to be solved.
    Ams OSram's intelligent RGB LED (RGBi), OSIRE E3731i, is the world's first OSP-based open architecture product that integrates leds and drivers in the same package to address these challenges. This RGBi uses the OSP open architecture to allow the master MCU to stably communicate with each LED module through the physical layer of the CAN or LIN interface, thus achieving status monitoring and independent control of each OSIRE E3731i. A simple twisted-pair connection to the SPI interface allows up to 1,000 RGBi to be connected in series, and since each RGB LED chip has built-in factory calibration data such as current, voltage, color point, brightness, etc., no online recalibration is required to ensure consistent color performance across the vehicle, greatly improving the ease of use and reliability of the system.
    According to Luo Li, the existing OEM customers have embedded the domain controller of their master control to achieve the establishment of intelligent connections between different nodes of the vehicle. In addition, based on the OSP architecture, designers can not only series OSIRE E3731i, but also can easily plug in SAID independent driver chips and other sensors with I2C communication, such as ambient light sensors, pressure sensors, etc., without destroying the existing system architecture. This approach not only simplifies hardware design, but also facilitates future OTA software updates, which is a disruptive innovation in cabin lighting and opens up new possibilities for the design of future smart car interiors.

360° radiation SYNIOS P1515, designed for double play
    On the stage of automotive design, taillights/signals are increasingly pursuing lightweight, compact, cost reduction and efficiency, as well as OLED-like effects, simple information exchange functions, and more attractive shapes. Ams OSRAM SYNIOS P1515 brings structural innovation to automotive lighting with its unique side glow, 360° radiation characteristics.

    Traditional top-emitting leds require complex reflective bowl structures, while the SYNIOS P1515 simplifies the overall structure with a simple straight-down approach. With the SYNIOS P1515, while maintaining the same brightness and uniformity, the number of leds and their driver circuits can be reduced by increasing the LED layout spacing, thus reducing the system cost. Lowry, for example, said that a typical case analysis of a tail-through lamp found that the number of LED particles in this scheme can be reduced by up to two-thirds, and the entire system cost can be greatly reduced.
    At the same time, SYNIOS P1515 can also achieve OLED-like surface light effect. The traditional taillight/signal light design usually requires a depth of 20-30mm, but with the SYNIOS P1515, the depth can be compressed to 5mm or less. This makes the design of the car taillight/signal light more concise and smooth, greatly improving the design flexibility.
    In addition, Rowley stressed that when using a matrix layout, the SYNIOS P1515 also enables local dimming, which enables dynamic display and the display of specific patterns. By setting an optical grating between the leds to regulate the light path, the display contrast can be further enhanced, giving greater freedom to the pattern design, and greatly enriching the expression ability of the lighting system.

    As the Chinese automobile industry gradually transforms from a follower to a leader, AMS OSram is actively involved in this change and deeply ploughed into the Chinese market. By setting up a technical support center in China to support the entire Asia-Pacific region and setting up a local product development team, AMS OSram strives to achieve cost optimization and efficiency improvement through technological innovation and localized support.
    In the future development of automotive lighting, technological innovation is always the core driving force to promote the industry. As Rowley said: "AMS Osram is always committed to bringing smarter, safer and better lighting experiences to the automotive industry through continuous technological innovation. Looking to the future, we will continue to explore the unknown, continue to transcend ourselves, and make 'light' a link between people and cars, and cars and the outside world."