Haolin Chen·June 20, 2023 What is 4K Ultra HD (4K UHD) resolution? 4K (K stands for kilo) means the resolution of the TV of approximately 4,000 pixels. It indicates how clarity you can see from your screen. 4K has surpassed the likes of HD and Full HD. Share on Facebook Opens in a new window. Tweet on Twitter Opens in a new window. Pin on Pinterest Opens in a new window. Back to blog