Quite simply, this refers to a specific screen resolution — 3840 x 2160 — which is four times (hence the “4”) the amount of pixels you’d find on a non-4K display. 4K Ultra HD is the name ...

What is 4K resolution? Every digital screen on a TV or monitor is made up using pixels, which are small dots or squares that work together to create images ... and Ultra HD Blu-ray discs.