led atmosphere car lights

With the continuous innovation of automobile technology and the continuous upgrading of consumption, the demand of drivers and passengers for automobiles not only stays in mechanical, power and other performance, but also in the aspects of human-computer interaction such as intelligence, personalization, and emotion. Especially when it comes to car interiors. J.D.Power's previous consumer surveys also showed that quality is no longer the main differentiator in car manufacturing, and that car interiors have become a key factor affecting customers' car purchases.

The market is gradually infiltrating, and multi-color ambient lighting has become the mainstream trend

As an important element and design to illuminate the interior of the car, automotive lighting has attracted more and more attention from OEMs and consumers in recent years. For OEMs, automotive ambient lighting is not only to create a car atmosphere and reflect individual decoration, but also the main manifestation of brand awareness. For consumers, they expect comfort, technology and multi-space experience in the car, and ambient lighting can only meet the various sensory needs of different environments.

At present, the market applications are divided into solid color, multi-color ambient light, and solid-color ambient light, which can adjust the brightness according to different lighting needs. Brightness is adjusted. At present, atmospheric lights are mainly used in automotive instrument panels, central control, air-conditioning outlets, door panels, ceilings and other components. Of course, the exterior part of the car also has applications, but due to the limitations of laws and regulations, the atmospheric lights outside the body are only used for welcome pedals, welcome projection light blankets, and illuminated signs.

Most customers may think that ambient lights are only "standard" for luxury cars, but the author found through the 2019 Shanghai Auto Show that ambient lights are in the market introduction and growth stage, equipped with all levels of models. For example, the Mercedes-Benz GLB concept car is equipped with 64-color ambient lighting, which can also be adjusted according to the cold and warm air; BMW's new BMW3 series domestic models are equipped with dynamic scene reminder ambient lighting; Long Space ME7 has ambient lighting around the starry sky; the new Tiggo 8 There are stepless color changing rhythm atmosphere lamps; BYD Song Song; Pro automatic induction atmosphere lamps; Chang'an; CS75PLUS through-type 64-color adjustable atmosphere lamps...

It is not difficult to see that interior ambient lighting has "flyed into people's homes" in the future. With the gradual penetration of the new energy vehicle market, it is expected to gain more market share; on the other hand, due to the close integration of lighting and electronic components, many Color atmosphere lighting can produce various animation effects, which can better improve the driving experience, and has become the mainstream design trend of automotive interior atmosphere lighting.

Lighting up the lights in the future, RGBLED innovation is the key

As a global leader in automotive interior lighting solutions, Melexis atmospheric lighting driver chip ranks first in the world. It has been keeping up with the market and technological trends, constantly innovating, and lighting up the lights in the future. The application of RGBLED dynamic ambient lighting has become the mainstream trend and has almost been recognized by global OEMs. To support this technology trend, Melexis recently released a new generation of LIN-based RGBLED controller MLX81113.

For atmospheric lights, what kind of role can such a controller play? Chen Jun, sales and application director of Melexis Asia Pacific, explained to reporters in a simple way: "MLX81113 is like the Internet of Things (IOT), it is a medium for information transmission, and provides core integrated circuit solutions for different user scenarios."

In the application of atmospheric light, its brightness and uniformity are one of the bottlenecks restricting its development. On the one hand, MLX81113 can ensure the brightness and color balance of RGBLED in automotive applications. How to achieve this effect? Melexis Asia Pacific Senior Field Application Engineer Song said: "The MLX81113 has built-in temperature monitoring that guarantees color stability in the -40~125°C temperature range, allowing temperature compensation for all color channels. Any temperature for red, green and blue Drift is fully compensated. We provide a complete tool chain to support rapid application development, including PCB evaluation boards, in-circuit simulators and C compiler packaging. To simplify software development for customers, we also provide all necessary Software components, including all necessary software components, including LIN driver, color mixing math library, and IC initialization routines."

On the other hand, the difficulty of atmospheric light in system integration has also become one of the difficulties in its application. It is to ensure the ability of system integration, MLX81113 is also unique in packaging. MLX81113 adopts silicon structure (SOI) exposed solder layer and lead-free DFN3mmx3mm heat dissipation enhanced package with excellent heat dissipation performance, stable EMC performance, and is designed in accordance with ISO 26262 level that meets system-level functional safety verification requirements.

With the deep interaction between science and technology and people, the car will become the "third space" of the car outside the home and workplace in the future and car lighting will be a key function to achieve personalization, emotion and differentiation. Chen Jun, sales and application director of Melexis Asia Pacific, said: "MLX further enriches the 81113 Melexis lighting product lineup and adapts to the future development trends of these markets. At the same time, it is LIN-compatible RGB that can provide entry-level, mid-range, and luxury models. Extraordinary, economical and practical car interior ambient lighting applications, the market prospects are broad."

In the era of intelligent driving, atmospheric lights are expected to realize human-vehicle interaction

In the future, new trends and technologies such as mobility, electrification, and autonomous driving will bring disruptive changes to the automotive industry, which will continue to drive changes and innovations in automotive lighting technology. ADAS As the technology load increases and autonomous driving is upgraded, ambient lighting will not only decorate and enhance style, but also assist and enhance safety features during driving.

For example, in an autonomous driving scenario, the driver will read or process various information in the car. They need to develop and customize appropriate lighting systems. On the one hand, body lighting is more important. When lighting solutions are embedded in the body and grille, changes in driver needs will be defined and highlighted through different colour technologies; on the other hand, interior lighting is also becoming increasingly important to assist driving. For example, it can act as an early warning when changing autonomous driving modes.

As a pioneer of atmospheric lighting innovation, what are Melexis' ideas for the development of atmospheric lighting in the future? Chen Jun said that as the era of autonomous driving is getting closer, the close combination of atmospheric lights and intelligent driving must be the development trend of The New York Times. In the future, as one of the indispensable elements of automobiles, atmospheric lights will enrich the user's driving experience infinitely, and truly realize the interaction between people and cars, and between cars and cars. In this regard, Melexis will also continue to innovate, pay close attention to industry trends and the application field needs of OEMs, and provide appropriate solutions.

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