MicroLEDs transform car windows into AR displays

April 11, 2019 //By Julien Happich
MicroLEDs transform car windows into AR displays
Funded by the Bavarian State Ministry for Economic Affairs, Regional Development and Energy, the SmartVIZ project which began in November 2018 aims to explores the use of micro LEDs for innovative visualization technologies.

Osram Opto Semiconductors is taking part in this project together with ASM AMICRA and Fraunhofer IISB with the aim to push μLED-based high-resolution visualization solutions into automotive interior applications. μLED technology can produce extremely high luminance in a wide dynamic range, and imaging devices based on direct emitting μLED pixels are considered a disruptive development in the visualization market, with the potential to sideline technologies such as LCD or OLED.

Over the next two and a half years, the SmartVIZ research project aims to provide the basis for future transparent, high-resolution, direct-emitting visualization solutions using μLED technologies.

The envisioned work packages will focus on three key technologies. First, the design of efficient μLED light sources, second, their handling on sub-component level and third, the final assembly. Red, green and blue μLED structures will perform as efficient high luminance image pixels. Implementation of such concepts and applications requires in-depth studies of the underlying physical principles that are in-part entirely different than today’s macro LED chips.

The project will also conduct research addressing the component integration of μLEDs using a novel approach for transparent and flexible image encoders. Transparent substrates based on indium gallium zinc oxide thin-film transistors (IGZO TFTs) will be the researchers’ focus for controlling the individual pixels. This approach allows for quasi-transparent surfaces, which can be filled with content only if the μLEDs are switched to active.

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