Man cycling with augmented reality glasses

MicroLED Active-Matrix Display

AR-Vµ™

AR-Vµ, the ultimate microLED display for consumer electronics of the future.

The full HD RGB active-matrix display has a fine pitch and high pixel yield. Using Plessey’s proprietary GaN-on-Si monolithic microLEDs allows a high-frame-rate video with perfect daytime viewing clarity to be shown in a wide variety of applications, from AR smart glasses to automotive head-up displays.

Incorporating over two million micro-level bonds between pixel and backplane, produces a high brightness, fine resolution display with wide colour gamut and reduced power consumption in a smaller form-factor ideal for replacing incumbent display technologies such as OLED and LCD.

Active-Matrix Technology

Bonding capabilities

First functioning microLED prototypes validate successful bonding of Plessey’s GaN-on-Si microLED array wafer to a backplane wafer and subsequent process steps to create microLED display modules from the bonded wafers.

 

Features

AR-Vµ™

Plessey native Red LED with probes

Brightness

Arrays that provide at least 100,000 nits at 1 watt, that’s TV equivalent brightness at only 5mW.

Using native GaN-on-Si Red, Green and Blue LED emitters are significantly brighter than colour converted or GaN-on-sapphire based LEDs.

Unlike LCD and OLED technologies, GaN-on-Si microLEDs are immune to burn-in and do not decay over time.

augmented reality glasses

Resolution

With Plessey’s GaN-on-Si emitters created in a monolithic process, a pixel capability of down to 1-micron can be achieved. Currently, Plessey manufacturer microLED arrays with a pixel pitch of just 2.5-micron. This creates an ultra-fine, HD display with excellent uniformity.

 

 

Gan on

Efficiency

Using a silicon substrate, Plessey’s microLED displays have outstanding thermal performance. When driven at low current density, the LEDs show even greater efficiency and longevity.

The External Quantum Efficiency is at least three times higher than best in class benchmarks with more improvements in the pipeline.

 

Plessey microLED Wafer

Performance

The backplanes used for AR-Vµ displays are IP protected and customised specifically for Plessey to ensure high quality and high performance current-driven silicon-based CMOS backplanes.

 

 

 

microLED Blue wafer

Active-Matrix Technology

Technology behind the display

AR-Vµ is based on Plessey’s active-matrix display solution which requires wafer-level bonding between the LED wafer and the CMOS backplane. Plessey overcame the significant technical challenges and achieved the world’s first successful mechanically and electronically bonded GaN-on-silicon microLED wafer to a high-density CMOS backplane.

Find out more

White Paper

The future of microLED displays using nextgeneration technologies

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