How does this 3D monitor technology work?

Here

A SeeReal 20 inch UXGA display monitor that has a 3-D viewing without special glasses, is displayed at the Society for Information

Here also SeeReal Advances 3D Technology by Launching Highest Resolution 3D Display at Cebit

I think I 've seen one of these. It had quite low resolution (picture was very pixelated) and the 3d effect was making me dizzy if watching at an angle.

Here’s a link to a page on the company’s website that explains the technology.