MICLEDI Showcases Industry’s First MicroLED Devices With Integrated Micro-Lenses

Posted  by GoPhotonics

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MICLEDI Microdisplays, a leading developer of microLED displays for Augmented Reality (AR) glasses, has announced the industry’s first microLED devices with integrated micro-lenses for pixel-level beam shaping, manufactured in the company’s proprietary 300mm manufacturing flow.

The new family of microLED devices enables multiple benefits for waveguide-based AR glasses, including:

  • Improved power efficiency – by focusing light within the targeted waveguide cone
  • Optimal waveguide in-coupling – offering additional flexibility for AR system integration and image quality improvements via controllable compensation of color dispersion
  • Pixel scaling to sub-3.0-micron pitch – with highly reproducible beam shape performance

Samples and test kits of blue and green microLED arrays, plus blue arrays with micro-lenses have been delivered to customers this summer with red micro-LEDs coming in Q422. For microLED device evaluation and display integration with waveguides, customers will see FHD display blocks and a variety of other microLED structures with mesa sizes down to 0.5 microns, and with micro-lens reference designs by MICLEDI.

According to Sean Lord, CEO of MICLEDI Microdisplays, “We are tremendously excited to reach this milestone with customer-quality samples of each of our RGB arrays. Customers have been clamoring for these enhanced devices. With micro-lenses, we are pleased to point out that one of the hottest demands from the field, microLED wall-plug-efficiency at ‘AR’ pitch, will be at best-in-class levels. In parallel, we are working on our first RGB modules and exploring approaches for polychromatic RGB integration.”

MICLEDI also pioneered the development of a modeling platform for micro-lens customization. The platform will be available for AR customers to evaluate the new simulation technology and design their own micro-lenses for specific waveguide configurations. Those can then be prototyped using MICLEDI’s manufacturing capabilities.

Integrating the micro-lenses in a tightly pitched microLED device is a highlight of MICLEDI’s unique manufacturing capabilities using 300mm wafer fab equipment. High-quality beam shaping requires extreme precision and nanometer scale overlay accuracy that can only be met in a 300mm wafer fab,” said Dr. Soeren Steudel, co-founder, and CTO of MICLEDI Microdisplays.

Click here to know more about MICLEDI's collaboration with GlobalFoundries.