17 UHD and 4K
Ultra-high-definition. Sometimes referred to as Super-Hi Vision, UHD refers to display resolutions that are much higher than HD (1080p). 4K and 8K are included as UHD formats. A 4K resolution has 3840 x 2160 pixels (16:9 aspect ratio). 4K gets its name from having about 4,000 pixels horizontally.