Panasonic vies for bragging rights with world's largest OLED TV

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Panasonic chief Kazuhiro Tsuga introduces the company's new 4K OLED 56'' television during the Panasonic opening day keynote at the Consumer Electronics Show (CES) in Las Vegas January 8, 2013. REUTERS/Rick Wilking (UNITED STATES - Tags: BUSINESS SCIENCE TECHNOLOGY)