For the past several years television manufactrers have worked to keep pace or to exceed the standards set by the federal government's Energy Star program.
With consumer interest in 3D growing, those same television manufacturers are also producing more products that are compatible with 3D content.
The problem with this new found dual emphasis on energy savings and 3D is that gains in energy efficiency are being minimized by the needs of 3D technologies according to tests conducted by CNET.
The consumer electronics news company tested four products: the 50-inch Panasonic TC--P50VT25 plasma TV, the 65-inch Panasonic TC-P65VT25 plasma TV, the Samsung UN55C8000 55-inch LED LCD TV and the Sony XBR-HX909 52-inch LED LCD TV, and it found that the Panasonic and Samsung products consumed between 22 percent and 50 percent more power while operating in their 3D viewing modes.
Sony's product was the only television to use less electricity and through the testing in which CNET examined the wattage consumption of these products, it found that the Panasonic plasmas used significantly more electricity than the LCD televisions.
After examining the numbers CNET theorizes that because 3D requires a brighter picture it needs to draw more power to display 3D images.
CNET points out that it didn't measure the brightness of the televisions' 2D and 3D images and that more tests need to be done to conclusively say that brightness differences are the reason for the additional power consumption.
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