Meant to be Seen (MTBS3D) has a tutorial posted in its forums on how to create a parallax barrier for your LCD screen. This way you can play 3-D games without the need of glasses, as long as you do not move your head. I am skeptical of how well this will work in real life, but they have posted a video on YouTube showing it.
Convert your standard LCD monitor into a glasses-free 3D display for only $5. This mod uses parallax barriers, which is the same technique as the Nintendo 3DS. With this mod you will be able to play over a hundred popular PC games in full stereo 3D without the use of any 3D glasses.
