Glasses-Free 3-D Display For Smartphones Shows Objects Floating Above Screen

The display beams 3-D objects a centimeter above or below. Handheld holograms aren't here yet, but these little prototypes offer glimpse of what that future might look like. Researchers at Hewlett-Packard Labs have made prototypes of screens that could display 3D images and videos in smartphones, smart watches, tablets and other mobile devices, they say. In a conference call with reporters, Hewlett-Packard physicist David Fattal described what the tech looked like. "You actually see the object e...