The following video asks the question "Do you want a folding phone screen?'
Obviously.
(Yes, we do want folding phone screens!)
As predicted in William Gibson's 1986 novel Count Zero:
"We'll key that to the image on this phone." He took an elegant modular unit from the bag and placed it in front of her. A paper thin polycarbon screen unfurled silently from the top of the unit and immediately grew rigid. She had once watched a butterfly emerge into the world, and seen the transformation of its drying wings. "How is that done?" she asked...
(Read more about Gibson's polycarbon phone screen)
What's not to like? I've been yearning for one of these for many years: take a look at these prototypes:
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A System To Defeat AI Face Recognition
'...points and patches of light... sliding all over their faces in a programmed manner that had been designed to foil facial recognition systems.'