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"LAS VEGAS \u2014 Plenty of manufacturers have 4K (a.k.a. Ultra HD) TVs here at CES, and plenty also are showing large-size OLED panels. Only one company is combining the two technologies, however, and that's Sony, who just unveiled the world's first 4K OLED set. (Update: Panasonic also showed off its own 4K OLED TV a day later.)\nBig caveat: The TV is just a prototype right now, with no price, release date or even a release year. However, Sony did show at least two prototypes at CES, so it's well beyond the concept phase.\nThe screen is 56 inches, so it's a little smaller than most 4K TVs, but it's about as big as the big-screen OLEDs that have been unveiled at the show. To pack the enormous number of pixels required for 4K in such a (relatively) small area, Sony worked with AU Optronics to overcome the challenges with making pixels small enough for the panel.\nSony CEO Kazuo Hirai unveiled the high-tech set during Sony's press conference here at CES. In an unexpected turn of events, the TV's picture vanished shortly after it came on stage, replaced by a screen that resembled Windows' \"blue screen of death.\"\nThe model in Sony's floor display was working fine, though, and to our eyes the picture looked amazing. OLED screens will need to get bigger for it to be a real showstopper, though.\nDo you think OLED and 4K will define the TVs of the future? Or are 1080p LCDs good enough? Share your thoughts in the comments.\n"^^<http://www.w3.org/2001/XMLSchema#string>
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