Hmmm... I wonder if FPV goggles (from drones) could do what you want? lots of them have HDMI inputs... https://oscarliang.com/fpv-goggles/ https://oscarliang.

Hmmm... I wonder if FPV goggles (from drones) could do what you want? lots of them have HDMI inputs... https://oscarliang.com/fpv-goggles/ https://oscarliang.com/fpv-goggles/