The current HDMI 2.0a supports HDR (extended dynamic range), so let’s say that you are watching a UHD Blu-ray movie, it only supports static metadata, which means that only one level of HDR is set for the whole movie. According to unconfirmed information from the document of Philips shows that with the advent of HDMI 2.1 it will bring the support of dynamic metadata. So it will be possible to recreate each scene with individual HDR settings.

HDMI 2.1 with dynamic metadata


“HDMI 2.0a covers HDR EOTF signaling and static metadata. Dynamic metadata is to be covered in HDMI 2.1”, Philips wrote.

Support for dynamic metadata is very important in improving the image quality. Of course, to take advantage of this you should have a compatible TV. The present TVs have a diverse picture attributes for max brightness, color gamut etc. With dynamic metadata flagging a particular TV would have the capacity to enhance the photo performance scene-by-scene in view of its equipment/picture abilities.

Importantly, currently the most popular format HDR, so HDR10 based on the static metadata. HDMI 2.1 will not indeed the first to handle the dynamic metadata. The same has been announced for DisplayPort 1.4, which was mentioned at the beginning of this month. For now, we must be patient and wait for the official confirmation on the specifications of HDMI 2.1.

Source: FlatpanelsHD

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