Compatible 3D Glasses? No Such Thing
(June 18, 2010) Contrary to recent widely published articles, so called “Universal” 3D glasses have compatibility issues. Glasses such as those recently introduced by Xpand sense the infra-red synchronization pulses emitted by 3D TVs and automatically time the shutters within the glasses to properly open and close to the on-screen 3D content.
However, these Ã¢â‚¬Å“UniversalÃ¢â‚¬Â glasses do not match the vendor-specific color characteristics of each TV makerÃ¢â‚¬â„¢s factory supplied 3D glasses, resulting in skewed color.
Samsung’s and Mitsubishi’s 3D glasses (which are cosmetically nearly identical, which indicates they are most likely sourced from Samsung) have a greenish tint, while Panasonic’s and Sony’s have an amber tint that blocks some blue (though the degree of tint appears to be different on both brand’s lenses). When displaying stereoscopic content, Samsung, Sony and Panasonic 3D TVs automatically compensate for the 3D glassesÃ¢â‚¬â„¢ filter characteristics.
If one were to use a non-tinted set of shutter glasses on a Sony or Panasonic 3D TV, the image would appear too blue, giving skin tones and objects a more Na’vi or Smurf tinge. On a Samsung the image would appear more purple. Therefore, “universal” glasses can’t really be a solution.
Last week we asked (by email) an Xpand executive for a comment, but have not yet received one.
HD Guru predicts that with demand growth for 3D TVs, (US 2010 sales estimates range widely from 1.2-4 million units) glasses prices will drop precipitously from the current $129-$199 range to around $25-$100. We estimate the price drops will begin within a few months and continue for the next 18.
In the past week Amazon (and select Samsung dealers) began giving 2 free pairs of Samsung 3D glasses and a free 3D capable Samsung Blu-ray player with the purchase of its 7000 series 3D LED LCD models.Ã‚Â The LED LCD [amazonify]B0036WT4AG::text::::UN40C7000[/amazonify] is currently Amazon priced $1665.98. The retail price of the 40″ 3D HDTV is $2000, the starter kit with two pairs of glasses and Ã¢â‚¬Å“Monsters vs. AliensÃ¢â‚¬Â 3D disc is $350 and the BD-C6900 retails for $400, resulting in savings of over $1084. Other 7000 models are the [amazonify]B0036WT4EC::text::::UN46C7000[/amazonify],[amazonify]B0036WT4JW::text::::UN55C7000[/amazonify]. The offer expires 11:59 PST June 19, 2010.
Edited By Michael Fremer
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