I’ve been seeing ‘smart window’ prototypes for ages now; these consist of a thin layer of LCD applied to a plastic film (but with no polarising filter) which is switchable between clear and milky-opaque.
I’m itching to get ny hands on some of the stuff as I believe I have a novel use for it.
Is it available commercially? (I’ve done a fair bit of googling on this, but turned up nothing very useful)