.. Do they exist?
I mean, i'm sure they exist but i wasn't able to find anything like what i have in mind yet.
From what i understand any LCD is transparent per se, if we don't have a reflector behind and something that provides the light we should be good to go.
I've even seen transparent OLEDs that are very small LEDs on a transparent film (cool!)
Basically what i want to come up with is an OSD for my snowboard visor
i glue the film to the visor, the polarized segments will block the light so i can see speed/altitude/g/whatever