Aledia showcases its unique approach to MicroLED manufacturing at Display Week 2026. Eric Buto, in charge of product marketing, explains the company’s proprietary 3D nanowire technology (WireLED) which enables the growth of red, green, and blue pixels on a single 200mm silicon wafer. This monolithic, single-wafer process for all three colors is based on Gallium Nitride (GaN) and is designed to overcome significant manufacturing challenges, particularly in achieving a high-quality red color point without resorting to mixed-material systems or complex mass transfer processes.
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The core of Aledia’s technology involves growing GaN-based nanowires directly on silicon. The color of the emitted light is tuned by precisely controlling the size of these nanowires. This method leverages standard, high-accuracy semiconductor processes, allowing the full three-color display to be grown at once on the wafer. The resulting micro-display then only needs to be bonded to a backplane. This integrated approach contrasts with conventional methods that often require growing red, green, and blue LEDs on separate wafers and then combining them, a process known for its complexity and challenges with red emitters.
Aledia is demonstrating its progress in achieving a full-color display, acknowledging that while the red color point is a significant achievement, work continues on balancing the efficiency across all three colors. The company expects to reach performance levels suitable for micro-display applications within about a year. Their 200mm fab in France is fully operational, enabling a rapid acceleration in development and learning cycles, with wafers being processed on a regular basis.
Beyond full-color micro-displays for applications like AR glasses, Aledia also presented its first commercial products: blue MicroLEDs for direct-view displays. A key feature is the ability to build 6-volt or 9-volt MicroLEDs, which can improve overall system efficiency. The company’s Flexinnova platform was also shown, which allows for the creation of custom-sized MicroLED chips by assembling 1-micron MicroLEDs in various configurations, like building blocks. This maintains consistent efficiency and characteristics regardless of the final chip size.
An emerging application for Aledia’s technology is in optical communications for AI data centers. The unique structure of their MicroLEDs allows them to achieve very high bandwidth at low current levels, making them highly attractive for this market. This capability, combined with their progress in displays for AR and direct-view, positions their nanowire-on-silicon platform for a diverse range of high-performance applications.
