HDMI 2.1 will also support Dynamic HDR, for specifying HDR metadata on a scene-by-scene or a frame-by-frame basis. The latest HDMI specification supports a range of higher resolutions, including 8K/60, 4K/120 and higher resolutions up to 10K.
HDMI 2.1 is also better able to cope with the EMI (electromagnetic interference) generated by nearby wireless devices than the current standard.
The new version of HDMI, 2.1 has been announced by the HDMI Forum along with the specifications to all HDMI 2.0 adopters.
HDMI 2.1 is compatible with 4K at 120Hz, 8K at 60Hz, and 10K resolutions for commercial A/V applications. "Synopsys is an important and early contributor to bringing these features to market, and its complete DesignWare HDMI 2.1 IP solution is key to establishing and supporting the HDMI 2.1 ecosystem". The new cables are backward compatible with older HDMI specs-they use the same actual plugs and sockets-but support substantially faster connections than the 18Gb/s of HDMI 2.0, let alone the 10.2Gb/s of HDMI 1.4. "Companies such as Synopsys that are providing complete HDMI 2.1 IP solutions are enabling the next-generation of chips to be developed so that consumers can experience ultra-high-definition video and high-fidelity audio in their devices".
The specification for HDMI 2.1 also includes features that will make gamers happy, such as Variable Refresh Rate (VRR) that irons out display lag and Quick Frame Transport (QFT), which reduces latency. Quick Media Switching aims to end jarring black screens when videos switch, and eARC lets HDMI's audio return channel handle lossless audio. Auto Low Latency Mode automatically sets the ideal latency setting for lag-free and uninterrupted viewing and interactivity.
Various compliance testing is now underway and will carry on well into 2018, so TVs and monitors supporting HDMI 2.1 won't be dropping in to Currys any time soon. The HDMI Forum now has a membership of 92 companies, and is actively inviting more companies to apply for membership and help shape the future of HDMI technology.