Yesterday we reported that Plessey partnered with AR supplier Vuzix to bring Micro-LED display engine, Quanta-Brite, for next generation AR Smart Glasses - which Vuzix expects to introduce in 2019.

Plessey MicroLED HUD prototype (CES 2018)

An interesting article at LED Inside explains Plessey Semiconductor's technology. The Quanta-Brite display engine is not a 'true' Micro-LED display - it is an LCoS or DMD (digital mirror) display engine that is lit by a micro-LED array and special optics. Usual LCoS and DMD displays are lit by larger LEDs, and Plessey claims that its micro-LED solution will provide a more efficient and more uniform display.

Plessey is also developing its next-generation display, branded as Quanta-Ray. Quanta-Ray displays, which Plessey will unveil later this year, are direct-emission micro-LED displays that do not need LCoS or DMD light modulation.

Plessey plans to launch its first Quanta-Ray display in June or July 2018, and this will be a small 3x3 mm monochrome display with about 100,000 pixels. In Q4 2018 the company will launch a larger display, a 0.7" full color 960x540 panel, and finally in Q2 2019 Plessey plans to launch a 1" color 1920x1080 display.



As the names Quanta-Brite and Quanta-Ray suggests, Plessey uses quantum-dots to convert the blue LEDs into red and green LEDs, to fulfill a color display.

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