MicroLEDs for AR glasses get development boost

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Micledi's microLED arrays (Blue GaN, 3um pixel pitch) for polychromatic QD integration. Credit: Micledi and QustomDot

QustomDot, a colour conversion developer for microLED displays and Micledi Microdisplays, an imec spin-off and developer of microLED displays for AR glasses, are jointly developing a full-colour microLED integration in polychromatic pixel arrays.

The new technology addresses the growing demand of compact and energy-efficient microdisplays for AR applications

The project is being supported by Flanders Innovation and Entrepreneurship (VLAIO). The Flanders-based consortium enables development of technology for microdisplays with high-resolution and high-brightness, combining:

  • Stable, RoHS-compliant Quantum Dot (QD) color conversion materials
  • New microLED architecture tailored for high-efficiency color conversion
  • High-throughput QD transfer and patterning techniques on micron-sized pixels

'New QD materials for colour conversion are a game changer. Our patented method for producing RoHS-compliant QDs deliver high-quality and stable materials. This makes them effective for microLED applications, which will accelerate product development in this untapped market,' said Willem Walravens, CTO QustomDot.

'Polychromatic arrays are an important development for microLED products. The manufacturing precision of MiclediI’s 300mm microLED approach is a perfect enabler for highly efficient color conversion. Our new pixel architecture has been optimized for high aperture (>60% aperture at a 3 µm pixel pitch) which is a key requisite to achieve a high brightness with quantum dots,' said Dr Soeren Steudel, Micledi CTO.

 

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