The OnePlus Concept One Hides Its Rear Camera Behind Electrochromic Glass Share January 3, 2020 Dm4r Technology OnePlus has shared more information about its Concept One smartphone ahead of CES and it has a feature that you probably never saw coming: a rear camera that remains hidden behind a special pane of glass until you’re ready to take a picture. Read This Article on › Source : The OnePlus Concept One Hides Its Rear Camera Behind Electrochromic Glass