LG SHOWS OFF its LD920 47-inch TV, which features passive 3D technology. The model is the same one rolled out in pubs across the UK to show Sky football matches in 3D.
Passive 3D is based on the polarisation principle, showing a different image to each eye. The glasses required are much cheaper to manufacture at only 50p to £1 a pair compared to active 3D. µ
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