What if the would move the screens? E.g. Similar like they have in camera optical stabilization they slightly move the sensor array. They could make screen with not uniform pixel density but more dense in center and then do eye tracking and shift those screen mechanically depending where eye will be focused. Probably not easy to pull off as camera optical stabilization (need bigger movements and screens more heavy than weight of camera sensor) but maybe not completely impossible? Oled screens are very tiny and flexible just probsbly hard to make it non fragile.