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DisplayPort 2.0 – standard with support for 8K and 16K displays

Video Electronics Standardization Association (VESA) announced the release of DisplayPort 2.0 audio / video standard.
DisplayPort 2.0 (DP 2.0) is the first global update to the standard since March 2016. It provides for a three-fold increase in channel bandwidth, which provides support for resolutions over 8K, a higher screen refresh rate and high dynamic resolution (HDR) for high resolution, improved support for various display configurations, and an improved user interface for working with augmented / augmented reality (AR / VR), including support for virtual reality systems with a resolution of 4K and higher.

The benefits of DP 2.0 are felt when using both the native DP connector and the USB-C connector, which transmits DP audio / video in DisplayPort Alt mode. The DP 2.0 standard is backward compatible with previous versions of DisplayPort and covers all the key features of DP 1.4a, including support for video compression compression system (DSC) without visible loss with direct error correction (FEC), transmission of HDR metadata and a number of other modern functions. The increased throughput for video transmission in the DP 2.0 standard via the USB-C connector allows simultaneous high-speed data transfer via USB without much damage to the display performance. DP 2.0 uses the Thunderbolt 3 Physical Interface Level (PHY) while maintaining the flexibility of the DP protocol, which makes it possible to increase channel throughput and provide convergence between leading industry-standard I / O standards.

The general conversion of single and multi-stream transmission allows one DP port on the source device to control multiple displays either through the docking station or through a daisy chain of displays.

“DP 2.0 offers a differentiated end-to-end user interface for various market segments, such as the manufacturing sector and games, as well as wide end-to-end compatibility with various connection options. It sets a new paradigm for various display interface specifications, enabling scalability: from energy-efficient small displays to huge displays with high resolution and refresh rates, ”said Syed Atar Hussein, Deputy Chairman of the Board of VESA and Senior Researcher at Display at AMD.

“Intel’s contribution in the form of the Thunderbolt PHY specification to VESA’s DP 2.0 standard was a major milestone on the road to the easiest and most versatile port available today and the highest display performance,” said Intel General Manager of Client Communications Jason Ziller. “By working with VESA, we provide the opportunity to interact within the framework of common building block technology for a wide range of devices and increase the degree of compatibility, giving the user more options.”

Additional information about the standard and configuration examples are provided below.

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Higher picture resolution requires the development of a new display interface
The industry continues to make efforts to develop video standards with resolutions higher than 4K / Ultra HD, and 8K-compatible TVs and computer monitors are already starting to appear on the market. Moreover, the Japanese broadcasting company NHK has already announced its plans to broadcast the games of the Summer Olympics 2020 in the 8K standard, and has also begun test broadcasts in this resolution.

At the same time, gaming platforms are plunging deeper into the world of exciting volumetric games, stimulating the demand for higher resolution and frame rate for PCs, laptops and mobile platforms, including smartphones and virtual reality headsets. To implement these projects, it is necessary to develop new display interfaces.

Triple increase in channel capacity
The previous version of the DisplayPort standard, v1.4a, provided maximum channel bandwidth of 32.4 Gb / s, while each of the four lines operated at 8.1 Gb / s. With 8b / 10b channel coding, this corresponds to a maximum load of 25.92 Gbit / s. DP 2.0 extends the maximum channel bandwidth to 20 Gb / s by using more efficient 128b / 132b channel coding, which provides a maximum load of 77.37 Gb / s – which is almost three times higher than DP 1.4a. This means that DP 2.0 is the first standard to support 8K resolution (7680 x 4320) at a 60 Hz refresh rate with 4: 4: 4 full color resolution, including 30 bpc (bpp) support for HDR-10 .

Maximize gain with USB-C
The increase in performance in the DP 2.0 standard is due to the use of its own DP connector and USB-C connector, working in DP Alt Mode. USB-C allows you to use one connector for transferring USB data, video data and power.

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