IEC TR 63274-2021 pdf Power consumption of high dynamic range television sets

4 Overview 4.1 High dynamic range video HDR video signals are able to represent pictures that can be displayed with much higher peak luminance levels and much darker black levels compared to traditional SDR signals. HDR signals can potentially change the related power consumption of HDR-capable televisions. For more information on the history, nature, and ranges of HDR video, see IEC TR 62935:2016, Clause 4 [14]. For information on the early HDR Standards and Related Activities, see IEC TR 62935:2016, Clause 5 [14]. However, most of the standards outlined in IEC TR 62935:2016, Clause 5 [14] have been updated or superseded since its publication. ITU-R Recommendation BT.2020-1 has been updated to BT.2020-2 [9] and now includes the higher frame rates of 100 Hz and 120/1,001 Hz. ITU-R has also now published Recommendation BT.2100-2 [5] that defines HDR formats for both HD and UHD resolutions. These formats use the same colour primaries as BT.2020-2 [9] but with two different transfer functions that may be used for HDR: • • perceptual quantizer (PQ), which was previously standardized in SMPTE ST 2084 [4]; hybrid log-gamma (HLG), which was previously standardized as ARIB STD-B67 [15]. BT.2100-2 [5] also adds support for ICtCp constant luminance colour representations, but deprecates YCbCr from ITU-R BT.2020-2 [9]. CEA standards have now become CTA standards, with exactly the same number, as a result in the name change of the association from the Consumer Electronics Association to the Consumer Technology Association. CTA-861-F [16] has now been superseded by CTA-861-G [10], which adds support for signalling the HLG EOTF and adds the capability to support alternative dynamic HDR metadata systems SMPTE ST 2094-10 [11] (also known as Dolby Vision® 3 dynamic metadata format) and SMPTE ST 2094-40 [12] (also known as HDR10+).
In Europe, UHD HDR Broadcasting has started. TravelXP became Europe’s first full time 4K HDR channel in December 2017, launched on Eutelsat’s Hotbird satellite and on the HD+ platform in Germany over an SES satellite. TravelXP 4K, is offered in 4K resolution, 10-bit Rec ITU-R BT.2020 [9] wide colour space, 50 frames per second, with HLG HDR.