4K Ready

What is 4K?

4K or UHD is a term used to describe the new picture format that has hit the market. (Ultra Hi Definition)
Before HD (Hi-Definition ) there was SD (Standard definition) 576 pixels x 720 pixels.
Then HD went to 1920 pixels x 1080 pixels. Now UHD is 4 times HD, 3840 x 2160.