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31 January 2024

MICLEDI demos device-ready micro-LEDs with micro-lenses at SPIE AR-VR-MR

MICLEDI Microdisplays B.V. of Leuven, Belgium — a fabless developer of micro-LED display modules for augmented reality (AR) glasses that was spun off from nanoelectronics research center IMEC in 2019 —showcased its range of red, green and blue (R, G and B) µLEDs at the SPIE AR-VR-MR 2024 exhibition in San Francisco, CA, USA (30–31 January), colocated with Photonics West 2024. The demonstrations highlighted what is claimed to be excellent color performance in each color point across the full range of drive currents. Designed for a variety of AR display appliances that demand ultra-compact display modules, the firm’s -LED displays address the requirements of emerging applications without the deficiencies of current technologies, it is claimed —  opening the door to a broader offering of display module performance parameters. The demand for AR solutions continues to grow, with users desiring elevated experiences with enhanced immersion and information-rich content. Most existing market-ready AR headsets offer monochrome, and sometimes monocular, micro-LED displays or low-resolution color. This is due to the challenges presented by space restrictions, limited pixel density, and lack of readiness of full-color intrinsic arrays with green being the most common ‘single’ color choice. MICLEDI is hence bringing to market micro-LED displays with high quality and brilliant green and blue arrays, enabling fully immersive AR. MICLEDI’s strategy is to enable feature-rich AR glasses and headgear by making the best individual color-performing µLEDs which, when coupled with the firm’s proprietary micro-lenses, can be integrated into full-color 3-panel µLED display modules. Different applications (true consumer, industrial, automotive, and others) require different optimal performance parameters, and MICLEDI says that it addresses the full range of requirements.

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Picture: Device-ready images on passive backplane, demonstrated by MICLEDI at the SPIE AR-VR-MR exhibition.

Highlights of MICLEDI’s SPIE AR-VR-MR exhibit included:
  • two versions of MICLEDI’s blue and green µLED arrays: passive-matrix ‘LED test device’ and passive-matrix ‘LED display test device’ with pixel density of 9150ppi with and without micro-lenses;
  • one version of MICLEDI’s red µLED arrays (red GaN);
  • 300mm micro-LED production wafers; and
  • green & blue µLED display devices driving a large visible image (480 x 320) with a projector.
Coming in 2024, MICLEDI will make available full-color modules with an active backplane. The firm is developing configurations of all three basic intrinsic color arrays with quantum dot filtering on already brilliant green and blue arrays. In addition, MICLEDI will introduce its first demo glasses in the first half second-quarter 2024. See related items:

Kopin and MICLEDI to collaborate on micro-LED displays for AR applications in high-brightness light conditions

MICLEDI demos red AlInGaP micro-LEDs at CES, completing portfolio of RGB micro-LEDs

IQE partners with MICLEDI to develop micro-LEDs for AR products

MICLEDI collaborating with GlobalFoundries on manufacturing micro-LED displays for AR glasses

Tags: microLED

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