For simplicity's sake we'll refer to the technology as 4K here, but you will find it called Ultra HD just as often - it essentially refers to the quality of the video picture you're seeing ...

Are you looking for a minimalist and easy-to-use website to download 4k/Ultra HD wallpapers for your device? Then do check out Desktop Nexus. The user interface of Desktop Nexus feels welcoming.

We may even learn a thing or two about 8K TVs as we swim toward the bottom. 4K Ultra HD is the name assigned to a screen with a resolution that’s four times that of a Full HD (1080p) TV.