LCD becomes the key Hella new headlights to achieve real-time adaptive light distribution

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According to foreign media reports, Hella has combined LED floodlights with liquid crystal displays to successfully develop a headlight that adjusts the light distribution in front of the vehicle in an extremely flexible way. The headlights are also suitable for a wide range of lighting requirements in all types of traffic conditions, and can be used to project guidelines on the road.

The brightness and light distribution of the LCD headlights are controlled by a liquid crystal display, which can be gradually adjusted to the desired lighting image according to the real-time traffic conditions. Hella believes the technology will drive future software-controlled lighting.

This headlight will provide the driver with the best driving view. Although the product provides complex lighting functions, the principle is not difficult to understand. The navigation system will use arrows or lines to identify the ideal lane and then project it onto the road. Christian Schmidt, head of advanced research and development at HELLA Lighting Technology, said: "LCD technology can apply this technology to the field of autonomous driving. At present, we will try to improve the technology and achieve the pre-production Item preparation."

The core component of this headlight is the LCD screen, which is located between the LED light source and other projection prisms. With a resolution of 100 x 300 pixels, the display can switch images individually and dimmed certain targets. After the car camera is combined with the lidar sensor, the two devices are responsible for measuring the optical distance and information transmission rate.

The vehicle can transmit the environmental information to the headlight control unit by means of the onboard computer, which is also responsible for adjusting the individual pixels of the display screen, and the maximum adjustable frequency can be 60 times/second. There are also 25 high-power LEDs that use a three-row arrangement as a light source. Each LED light can be adapted to different lighting environments. The LCD-controlled headlights allow designers to adjust the lighting area to their design wishes.

Hella collaborated with the University of Stuttgart, Paderborn, Porsche, Elmos and Schweizer Electronic to promote the joint R&D project, while Hella is responsible for R&D. Product concept of LCD spotlight optical system. The entire R&D project is based on Porsche's system requirements and the systemic requirements of the University of Optical Technology and Mechatronics (L-LAB) at the University of Paderborn.

In the development process, Hella is responsible for ensuring that the system is energy efficient, and is also responsible for the development of a thermal concept product to ensure the application compatibility of the module to the vehicle. Since the LCD display is a necessity for the system, the development of the LCD display was carried out by Merck. Almers Semiconductor is responsible for the design and manufacture of new semiconductor electronic components that will be embedded in the boards provided by Schweitzer Electronics.

In addition, Hella is responsible for integrating various components into the entire system, while developing a (device) interface for lighting control and headlights. A prototype has been produced and will be integrated into the Porsche Panamera. Currently, Paderborn University is responsible for testing the adaptive headlights in a real-world environment.

As the number of vehicles on the road is increasing, and the requirements for traffic safety are becoming more stringent, the importance of intelligent lighting systems has become more prominent. LCD technology has realized this new function, and the promotion target of this product is not limited to passenger cars, commercial vehicles, passenger cars are also applicable.