Over the past 80 years, TVs have evolved from black and white tubes to colorful wall-mounted panel TVs. TVs have always displayed just two dimensions. But, by the end of this year most of the TVs will be in 3D models.
3D TVs are much more expensive than normal 2D TVs, because of the material needed to get the full set. You'll have to have the glasses, a Blue-Ray player and Blue-Ray disc. Manufacturers are making TVs 40 inches and above. The cheapest TV is about Dhs10,000. The glasses are battery powered and use a liquid-crystal layer on each lens that turns dark when current is applied. Although you'll need the Blue-Ray player, you can buy it in most major shops which should support HDMI 1.4. Finally, you'll need a Blue-Ray movie or game disc that aren't widely available at the moment.
However, 3D TVs claim to have some disadvantages and these might be solved in time. You can't watch more than two 3D movies after each other otherwise you'll feel dizzy and nauseous which is the effect of the glasses.
Glenn Derene, 3D TV, Popular Mechanics, Sep 2010, 80-83
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