Aledia today announced a major technological milestone with the successful demonstration of a fully functional monolithic RGB epitaxial wafer. This breakthrough validates the company’s end-to-end monolithic RGB process, enabling the emission of red, green, and blue light from a single epi wafer processed in one run.

This achievement marks a significant step forward in microLED technology. Aledia’s proprietary nanowire-based approach enables the simultaneous growth of nanowires with diameters ranging from 100 nm to 400 nm, depending on the color, all within a single process step. This capability represents a key advancement in simplifying manufacturing complexity while enhancing performance.

Figure: 3D Nanowire (NW) size vs emitted color Aledia

The company also demonstrated a sub-pixel pitch of 2.5 μm, corresponding to a 5.0 μm × 5.0 μm pixel size. This positions Aledia at the forefront of the industry, surpassing current monochrome state-of-the-art 2D microLED technologies. Building on this achievement, Aledia is now advancing toward an ambitious roadmap targeting a 2.0 μm sub-pixel pitch for both monochrome and monolithic RGB displays.

Notably, this milestone was achieved on the very first processed lot, underscoring the robustness and scalability of Aledia’s monolithic approach. This early success reinforces confidence in the company’s ability to accelerate performance improvements and transition toward high-volume manufacturing.

The newly developed planar (non-stacked) monolithic RGB process also unlocks innovative architectural possibilities. It enables the development of a new class of light engines, particularly suited for advanced augmented reality applications and next-generation smart glasses, where compactness, efficiency, and high resolution are critical.

“This achievement is a strong validation of our technology and our vision,” said Felix Marchal, Chief Sales and Marketing Officer “It demonstrates not only the feasibility of monolithic RGB integration but also its potential to redefine the future of microdisplay applications.”

Aledia continues to push the boundaries of nanowire-based microLED technology, aiming to deliver scalable, high-performance solutions for emerging display markets.

(Photo credit: Aledia)

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