New glasses-free 3-D is like a hologram in your pocket

3-D TV might not have caught on as much as display makers hoped it would, but part of that has to be due to the uncomfortable, silly-looking glasses one always has to wear. Glasses-free 3-D seems to be the future, and research at HP is a huge leap beyond existing systems like the Nintendo 3DS.In order to see in 3-D, each of our eyes must see a slightly different image. Usually they get different v...

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