The OnePlus Concept One is a new phone revealed at CES 2020, but it’s unlikely you’ll ever be able to buy it.
Its innovation: tuck the rear cameras under a layer of glass that can turn opaque when you’re not taking photos so you have a slick, unbroken back of the phone.
OnePlus took the same tech that modern cars use to make their sunroofs transparent and built it into the back of the Concept One.
Put simply, when the camera app opens, the phone runs a current through the glass to make it transparent; at all other times, it clouds over to hide the lenses.
Read more at https://www.techradar.com/news/oneplus-concept-one-first-look
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