LG's Dual Play capability allows two player split screen gaming without the split screen. We've seen this kind of thing before with Sony's Playstation TV, but not on this scale.
Computerworld reports on LG showing off its Dual Play capability for 3D TVs.
It uses the same kind of stereoscopic trickery we first saw in Sony's smaller PlayStation TV to allow split screen play for console games without the split screen. Instead, anyone wandering past your game is likely to hurl up; the vision that gets pushed out is seriously eye straining without the glasses on.
They use pairs of left or right lenses (which means you can make your own if you're willing to hack glasses you already own) to display just one image per player, which also means you're limited to 2D play only.[Computerworld]