HR3D Dual-Layer Glasses-Free Display
MIT has come up with a new way to view 3-D images without the use of glasses. They are calling this High-Rank 3D Display. They say it is not another parallax barrier. Instead they call it Content Adaptive Parallax Barrier. What it sounds like to me is that instead of a parallax barrier that is fixed, this one can adjust based on the content being shown.