“Transparent” Near-to-Eye Displays

Ron Mertens of OLED-Info, MicroLED-Info, the MicroLED Association, and one of the organizers of MicroLED AR/VR Connect asked for my input on “Why is there no 'simple' solution, where we place a transparent display in front of the user [for AR]?” Or more simply, why aren’t ‘transparent’ OLEDs/MicroLEDs being used in optical-see-through (OST) AR headsets? I ended up writing a rather long response to…