SriramSubramanian
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Forget holograms, here's a 'floating e-ink' display
The amount of pixels in a display has been the source of forum flamewars since the advent of HDTV, which makes an experimental display technology from the University of Sussex so interesting. It's called JOLED and it measures a whopping 7 x 6 voxels high and wide, respectively. Hold on, it gets more interesting. Each voxel is a diminutive multi-colored sphere, and they're suspended in mid-air by an array of ultrasound speakers that "create high-pitched and high-intensity soundwaves that are inaudible but forceful enough to hold the spheres in place," according to the school.
