Display Stream Compression: Difference between revisions

Revision as of 07:32, 8 May 2024

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On 4 January 2017, [[HDMI 2.1]] was announced which supports up to [[10K resolution]] and uses DSC 1.2 for video that is higher than 8K resolution with 4:2:0 [[chroma subsampling]].<ref name=HDMI21PressRelease>{{cite news |url=http://www.hdmi.org/press/press_release.aspx?prid=145 |title=HDMI Forum announces version 2.1 of the HDMI specification |publisher=HDMI.org |date=2017-01-04 |access-date=2017-01-10 |archive-date=2017-01-08 |archive-url=https://web.archive.org/web/20170108081018/http://www.hdmi.org/press/press_release.aspx?prid=145 |url-status=dead }}</ref><ref name=HDMI21Introduction>{{cite news |url=http://www.hdmi.org/manufacturer/hdmi_2_1/index.aspx |title=Introducing HDMI 2.1 |publisher=HDMI.org |access-date=2017-01-10 |archive-date=6 January 2017 |archive-url=https://web.archive.org/web/20170106195344/http://www.hdmi.org/manufacturer/hdmi_2_1/index.aspx |url-status=dead }}</ref><ref name=HDMI21January2017Anandtech>{{cite news |url=http://www.anandtech.com/show/11003/hdmi-21-announced-8kp60-48gbps-cable |title=HDMI 2.1 Announced|author=Anton Shilov |publisher=Anandtech |date=2017-01-05 |access-date=2017-01-10}}</ref>

Using DSC with HBR3 transmission rates, DisplayPort{{nbsp}}1.4 can support 8K UHD ({{resx|7680|4320}}) at 60{{nbsp}}Hz or 4K UHD ({{resx|3840|2160}}) at 240{{nbsp}}Hz with 30{{nbsp}}bit/px RGB color and HDR.<!-- These examples are sufficient; no need to make a large list of additional formats here. A large list can already be found in the "refresh frequency limits" table later. --> 4K at 6096{{nbsp}}Hz 30{{nbsp}}bit/px RGB/HDR can be achieved without the need for DSC. On displays which do not support DSC, the maximum limits are unchanged from DisplayPort{{nbsp}}1.3 (4K 120{{nbsp}}Hz, 5K 60{{nbsp}}Hz, 8K 30{{nbsp}}Hz).<ref>{{Cite web|url=http://www.nextpowerup.com/news/26775/next-displayport-can-drive-8k-hdr-monitors/|title=Next DisplayPort Can Drive 8K HDR Monitors|website=NextPowerUp|access-date=2016-03-04|archive-url=https://web.archive.org/web/20161227131148/http://www.nextpowerup.com/news/26775/next-displayport-can-drive-8k-hdr-monitors/|archive-date=27 December 2016|url-status=dead}}</ref> <!-- need to move this out of history section into a more appropriate section -->

DisplayPort version 1.4a was published in April 2018.<ref name="DP 1.4a FAQ">{{cite web |title=FAQ{{Snd}} DisplayPort |url=https://www.displayport.org/faq/ |archive-url=https://web.archive.org/web/20181224123542/https://www.displayport.org/faq/ |archive-date=24 December 2018}}</ref> VESA made no official press release for this version. It updated DisplayPort's DSC implementation from DSC 1.2 to 1.2a.<ref name="DSC Display Stream Compression">{{cite web |title=DSC Display Stream Compression |url=https://vesa.org/vesa-display-compression-codecs/dsc/ |archive-url=https://web.archive.org/web/20190710163312/https://vesa.org/vesa-display-compression-codecs/dsc/|archive-date=10 July 2019}}</ref>