I was talking about autosteroscopic displays. The 3DS was just an example, and the only one that general public may have seen. And yes, the new 3DS uses eye tra

I was talking about autosteroscopic displays. The 3DS was just an example, and the only one that general public may have seen. And yes, the new 3DS uses eye tracking and is meant for one person. But there are professional displays that can be used by a group of people (even without any eye-tracking). Similar disclaimer probably are on VR headsets and 3D shutter glasses.Such 3D technology with a fixed focus is probably a bit more problematic and sensitive persons get motion sickness.