4K technology is on the cusp of replacing the HD technology from TV screens, computer monitors, cameras, and projectors. The term 4K is used to refer to video signals with a horizontal resolution on the order of 4,000 pixels. A 4K resolution is 4096 x 2160 pixels (approximately a 1.9:1 aspect ratio). In a full HD resolution produced by the Blu-ray technology, a 4K image is composed of nearly 8.3 Million pixels, whereas a 1080p image has just more than 2 Million pixels. The 4K technology market was valued at USD 18.1 Billion in 2014 and it is expected to grow at a CAGR of 21.6% from 2016 to 2021.
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