4K “Ultra HD” 4K, also known as Ultra HD, is the digital video format now approved by the International Telecommunication Union (ITU). At a resolution of 3840 × 2160 pixels, the format is four times higher than regular high definition and is the successor to today’s 1080p Full HD format. Below are highlights supporting a surge in the 4K discussion. 1. At the recent 2013 International CES (Consumer Electronics Show) in Las Vegas, 4K TV sets dominated, with virtually every … [Read more...] about I can see clearly now… in 3D, 4K, or 8K?