3D Displays (Score 1)

This is sort of old technology - there was another alternate lines LCD method which was developed IIRC by some New York doctors. I saw it demonstrated in 199?4. It involved a polarising plastic film (muPol) which had alternating lines polarising left and right. This film was carefully stuck to the LCD display of laptop or projector. To see 3D you sent L and R images to odd/even lines and wore light weight standard decoding polarising glasses (no problems with expensive head gear / shutter sync or range of view). The effect was remarkably good. The film was inexpensive. The problem was that the alignment to the LCD was laborious (at that time achieved manually) and the company didn't look to me as though they could market a hotdog at a baseball match... I'm not too surprised to find no evidence whatever on the www of this company but the technology was really very marketable!!