Microsoft patent would let touchscreens make real keyboards

A new Microsoft patent filing published on Thursday could lead to touchscreens that could change shape to create keyboards and other tactile objects. The technique for a "light-induced shape-memory polymer display screen" would send ultraviolet light to a plastic layer above each pixel to change its topography. Different UV wavelengths would make different parts hard or soft, creating bumps and ridges that could replicate a real surface and provide tangible keys....



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