Scientists are developing a breakthrough display technology that could turn ordinary phone screens into true 3D hologram projectors. By combining OLED panels with ultra-thin engineered materials called metasurfaces, researchers can precisely bend and shape light to create floating, depth-accurate visuals—without special glasses. Unlike today’s flat 3D tricks or AR overlays, this approach manipulates light at the nanoscale, allowing images to appear as real volumetric objects that change with vie