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Friday, 22 Jun 2018

Hella develops OLED technology for automotive applications

Hella has been active in researching OLED technology since 2005 and has adapted it for automotive manufacturers so that its meets the requirements regarding e.g. temperature resistance and a long service life

Hella - OLED taillights in Audi A8

10 May 2018 | Editor

Hella has announced they are developing OLED rear combination lamps with Audi and they have been integrated in to the new Audi A8.

The appearance of headlamps and rear combination lamps is no longer only at night-time an important distinction characteristic for automotive manufacturers. Especially homogeneous lighting functions are of increasing importance here.

For its flagship car, Audi has made the decision to adopt area lighting based on OLED lighting panels in its rear combination lamps.

Each OLED is divided into four segments, each individually controllable, enabling different sequences of illumination. The two upper segments are primarily to support the stop light while the lower ones complement the tail light, which is realised above the OLEDs as a lighting strip using LEDs. The combination of LED and OLED light sources creates the vehicle's unique look.

The OLEDs consist of organic semiconductor layers that can be distributed across a carrier material. Two electrodes will then cause the layers to illuminate evenly. For a homogeneous appearance, the technology can therefore do away with reflectors, light guides or additional optics.

Hella said that the rear combination lamps in the new Audi A8 consist of three parts and extend across the full width of the rear of the vehicle. A total of eight OLEDs are used.

Hella has been active in researching OLED technology since 2005 and has adapted it for automotive manufacturers so that its meets the requirements regarding e.g. temperature resistance and a long service life.

For integrating OLED technology into the rear combination lamp, Hella developers have invented novel connection technologies, more specifically a special adhesive system ensuring the safe fixation of the OLEDs while also not limiting the design.

All research and development works have then directly been a factor in serial production. Hella has conceived of and built a highly automated assembly line at the Lippstadt location, meeting the highest standards of retraceability and reproducibility.

"The OLEDs furthermore allow for completely new design possibilities."


Dr. Michael Kleinkes, Head of Lighting Technology Development at HELLA

www.hella.com    www.audi.de   


About Hella

Hella is a global, family-owned company, listed on the stock exchange, with more than 40,000 employees at over 125 locations in some 35 countries. The HELLA Group develops and manufactures products for lighting technology andelectronics for the automotive industry and also has one of the largest retail organizations forautomotive parts, accessories, diagnostics, and services within Europe.

With more than 7,000 people working in research and development, HELLA is one of the most important innovation drivers on the market. Furthermore, with sales of 6.6 billion euros in the fiscal year of 2016/2017, the HELLA Group is one of the top 40 automotive parts suppliers in the world and one of the 100 largest German industrial companies.

Source: Hella


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