News: LEDs
2 May 2024
Aledia exceeds 32% EQE for sub-1.5µm micro-LEDs
Aledia S.A of Echirolles, near Grenoble, France (a developer and manufacturer of 3D micro-LEDs for display applications based on its large-area gallium nitride nanowires-on-silicon platform) has announced a series of technical advances that, it claims, set new standards for performance, efficiency and display quality.
Record energy efficiency and sustainability
Aledia says that it has set a new benchmark for small-sized micro-LEDs (<1.5µm), achieving an external quantum efficiency (EQE) of over 32%, leading to a wall-plug efficiency (WPE) of 320mW of visible light output per watt of electrical power input. As well as a high EQE enabling a larger portion of electricity to be converted into visible light (reducing energy consumption and extending device battery life), Aledia claims that superior WPE illustrates the ability of its micro-LEDs to provide bright, vivid displays while consuming significantly less power, establishing a new paradigm for eco-friendly display technologies that do not compromise on performance.
Enhanced image quality for AR
Moreover, the technology’s advances in native red, green and blue (RGB) directionality and pixel size reduction can benefit augmented reality (AR) applications. By reducing pixel size to 2µm, Aledia can significantly enhance the resolution and compactness of micro-LED displays. This is crucial for AR devices, where space and image clarity are paramount. Innovations in native RGB directionality ensure that each color channel precisely aligns, producing sharper, more vibrant images for AR.
Setting new standards in color fidelity
Aledia has also claimed a milestone by reaching a 99% Digital Cinema Initiatives (DCI) P3 color gamut. The DCI P3 color space is known for its wider spectrum compared with traditional RGB, enabling a broader range of colors that bring more depth and realism to digital displays. Aledia says that this advance in color fidelity for micro-LED technology enhances its capability to deliver what is claimed to be unparalleled image quality, ensuring vibrant and lifelike visuals across a variety of applications, from consumer electronics to professional display solutions.
“These technological advances have the potential to profoundly impact various markets and pave the way for new applications and user experiences,” reckons chief technology officer Philippe Gilet.
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