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The CEA study, "Power Consumption Trends in Digital TVs Produced Since 2003," reviewed power consumption data on best-selling digital TV models from 2003 to 2010 - in both active and standby modes - on LCD and plasma display models with screen sizes ranging from 13- to 65-inches.
• LCD active power use fell 63 percent from 2003 to 2010.
• LCD standby power use dropped 87 percent from 2004 to 2010.
• Plasma TV active power use dropped 41 percent from 2008 to 2010.
• Plasma TV standby use fell 85 percent from 2008 to 2010.
To put the gains in context, the power consumption of the average TV sold in 2010 consumes less energy than a 100 watt incandescent light bulb and less power than what is needed to light a typical living room.
As the study explains, standard fluorescent backlighting for LCD TVs is rapidly being replaced with light emitting diodes, or LEDs, which will make TVs even more efficient along with enhancing the brightness and contrast of the display.
In terms of market share, CEA expects LCD TVs to account for 82 percent of TV display sales in 2011 with 27.1 million units shipped. CEA expects 4.6 million plasma TVs to ship this year. As noted in the study, significant improvements in energy efficiency of plasma displays have been made in the optimization of the xenon/neon gas mixture, which produces UV light. Along with these technology improvements, the study also attributed energy efficiency gains to manufacturers seeking to meet the latest Energy Star specifications.