The "Ultra HD" term is an
umbrella term that was selected by the Consumer Electronics Association after extensive consumer research, as the term has also been established with the introduction of "
Ultra HD Blu-ray".
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Resolution
Two resolutions are defined as UHDTV:
[13][14][15]
- UHDTV-1 is 3840 pixels wide by 2160 pixels tall (8.29 megapixels), which is four times as many pixels as the 1920 × 1080 (2.07 megapixels) of current 1080p HDTV(full HDTV).
- Also known as 4K UHD. Although roughly similar in resolution to 4K digital cinema formats, it should not be confused with other 4K resolutions such as the 4096 × 2160 DCI 4K/Cinema 4K.
- UHDTV-2 is 7680 pixels wide by 4320 pixels tall (33.18 megapixels), also referred to as 8K UHD, which is sixteen times as many pixels as current 1080p HDTV, which brings it closer to the detail level of 15/70 mm IMAX.[14][23][24]NHK advertises the 8K UHDTV format with 22.2 surround sound as Super Hi-Vision.