The new regulation of HDMI 2.1a was officially released. The new standard can provide power supply for HDMI data cable through HDMI cables power technology. With HDMI cable power technology, HDMI data cable can supply power to connected devices without additional power supply devices. In this way, even if the HDMI data wire is very long, it can still be powered by a single wire, and there is no need to connect the power cord separately for power supply. This technology can strengthen the power supply of source equipment and improve the stability of long-distance transmission. However, HDMI cable power technology requires the source device and the receiving device to support this function at the same time, and has clear requirements for both the positive and negative directions of the wire.
In addition, HDMI 2.1a also introduces a new function of source based tone mapping (sbtm) -hdr, which allows source devices to perform some HDR mapping, further improving the viewing experience brought by HDR. It enables the signal source to send a piece of video signal. By adjusting its output, it can make full use of the HDR of a specific display and better play the potential of each display.
HDMI 2.1a specification
HDMI 2.1a specification is the latest HDMI ® Specifications, supporting a range of higher resolutions and refresh rates, including 8k 60HZ and 4k 120HZ, as well as resolutions up to 10K. At the same time, it supports dynamic HDR format, and the bandwidth capacity is increased to 48G.
The new ultra high speed HDMI cable has 48Gbps bandwidth. This cable ensures ultra-high bandwidth independent features, including uncompressed 8K video that supports HDR. Ultra low EMI (electromagnetic interference) can reduce the interference to nearby wireless devices. The cable is reverse compatible and can also be used in existing HDMI devices.
The video can support higher accuracy and higher frequency (8k 60hz and 4K 120hz),it supports 10K test, meets commercial command, AV, industrial and professional applications.
Dynamic HDR ensures that even every frame of the video can display depth of field, each picture is wider and has wider color gamut.
Earc is easy to upgrade and connect, and supports the latest audio formats. It can ensure that the quality between audio devices and the latest HDMI 2.1a products is more perfect.
1,These enhancements include more mobile and mobile games, movies and video game features.
2, Bring VRR more smooth picture flow and more realistic experience
3,Reduce the delay transmission time, so that games and applications can be implemented quickly
4,Quick media switching (QMS) for movies and videos can reduce a black screen time before displaying content.
5,HDMI power output enables active HDMI to connect to a independent power cord.
6,The HDMI 2.1A version is compatible to the previous version and is open to all 2.0 adopters.
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