These were first proposed by NHK Science & Technology Research Laboratories and later defined and approved by the International Telecommunication Union (ITU). Ultra-high-definition television (also known as Ultra HD television, Ultra HD, UHDTV, UHD and Super Hi-Vision) today includes 4K UHD and 8K UHD, which are two digital video formats with an aspect ratio of 16:9. Both Rec. 2020 and Rec. 709 use Illuminant D65 for the white point.
709 (HDTV) color space in the inner triangle. 2020 (UHDTV) color space in the outer triangle and Rec.
For the resolution commonly referred to as 'Ultra HD', see 4K resolution.Ĭomparison of 8K UHDTV, 4K UHDTV, HDTV and SDTV resolution Diagram of the CIE 1931 color space that shows the Rec.
For the video disc format, see Ultra HD Blu-ray.
