One of the more unique approaches to the 3D glasses problem is to use your eyelids as active shutters. Most 3DTV’s work by presenting an image to each eye while the other is blocked, this happens so fast that your brain interprets it as a single image with much more depth. This unique concept involves placing two nodes on your temples, syncing them with the display, then playing the movie.
The two nodes beside either eye communicate with the TV to sync the frame being displayed with each eye. To do this, the opposing eyelid is closed, then the process is alternated and repeated. Its a very bizarre thing to watch, as this kind of behaviour of the eyes is what you would typically associate with someone having a seizure. Without using it myself, its hard to know just how well it works, but the theory behind it is sound.
The system requires a 120hz TV, just like regular active shutter displays.
He hopes to have a final version ready for CES 2012, although I’m not sure many reviewers would be willing to give this one a go. It is a unique way to tackle the issue of consumers not wanting to wear glasses to watch 3D content, however I suspect the majority aren’t going to adopt this either.
More information about active-eyelid 3D at Jonathon Post