LED & Solid State Lighting

Industry’s first monolithic microLED displays

Plessey announced its commitment to being the first to market with a monolithic microLED based display based on GaN-on-Silicon. MicroLEDs are emerging as the only technology that can provide high luminance in a small format.

They also commenced an extensive licensing programme that will see the company license out its GaN-on-Silicon expertise to microLED manufacturers in line with its new business strategy of becoming the photonic industry’s foremost technology platform provider.



Plessey’s ground breaking IP protected GaN-on-Silicon supports the provision of next-generation products.

  • Widely acknowledged as the route for monolithic addressable micro LED arrays/pixels for hi-res and hi-lum displays
  • High brightness LEDs, microLED displays, power devices, UV LEDs, photonic integration, advanced sensors

Plessey is creating compelling cutting edge display technology solutions, addressing the challenges and limitations faced in the field of photonics.

  • Arrays with emitters as small as 1 micron.
  • Driven at low current density for greater efficiency and longevity
  • External Quantum Efficiency at least three times higher than best in class benchmarks with more improvements in the pipeline.
  • Arrays that provide at least 100,000 nits at 1 watt, that’s TV equivalent brightness at only 5mW
  • Coloured pixels fabricated in monolithic form.
  • IP protected custom CMOS back plane provides rapid developments for custom arrays.

GaN-on-Silicon out-perform competing technologies such as sapphire and OLEDs

  • Outstanding thermal performance
  • Focussed light emitting surface
  • Monolithic die/array
  • Lm/W maintenance
  • Excellent uniformity
  • Integrated electronic and optical components


MicroLEDs White paper