In 2021, Quantum Dots developer Nanosys acquired 3D Nanowire microLED display developer Glo. At Displayweek 2022, Nanosys showed Glo's latest new microLED microdisplay prototype. You can see a demonstration in the video below.
The display is 0.7-inch in size, with a resolution of 480x270, or 787 PPI. That is very low for a microdisplay. The microLED chip size is 7x7 um, and the brightness is 50,000 nits. The performance is underwhelming - however such a solution could find applications, depending on the price - and Nanosys suggests using it in an automotive HUD solution.
This solution is based on blue microLED chips with quantum dots color conversion.