Panasonic wasn't about to let Sony one-up it in the 4K OLED arena, and announced its own 56-inch UltraHD prototype the day after its competitor outed a very similar panel here at CES 2013. We'd never tire of the luscious combination of 4k and OLED, so we couldn't wait to high-tail it to the Panasonic booth to gaze at new screen in its full glory. As with the Sony model, it sucks you into the screen with the level of detail, brightness, ultra-dark blacks and vi
