For this class I took with Camera Culture from the MIT Media Lab, I made a 3D pocket-sized display. It's based off of a stereoscopic display from Instructables. The difference is mine is about the size of a deck of cards. As this utilizes stereoscopy, you need polarized glasses. If you wanted to be all fancy and make a Nintendo 3DS display, you'll need a fancy lenticular set-up (think of those rulers and stickers you had in grade school that moved if you tilted them from side to side. Lenticular lenses look like that grated plastic). Lenticular lenses are awesome in that they allow you to see 3D without spectacles. They are autostereoscopic displays that basically allow each eye, right and left, to see its specific image due to specific light refraction.
Unfortunately, I wasn't that fancy, so my pocket locket needs glasses, but since it fits into your pocket, I think it's kind of dandy :)
|I need to get a real digital camera, but I'm a poor college student :P|