VESA Releases DisplayPort 2.0 Standard With Support for 16K and 8K Displays

VESA Releases DisplayPort 2.0 Standard With Support for 16K and 8K Displays

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The Video Electronics Standards Association (VESA) has announced the release of the DisplayPort 2.0 audio/video standard.

DisplayPort 2.0 is the first major update to the standard since March 2016. It provides up to a 3X increase in data bandwidth which enables support for beyond 8K resolutions, higher refresh rates and high dynamic range (HDR) support at higher resolutions, improved support for multiple display configurations, as well as improved user experience with augmented/virtual reality (AR/VR) displays, including support for 4K-and-beyond VR resolutions.

The advantages of DP 2.0 are enjoyed across both the native DP connector as well as the USB Type-C connector, which carries the DP audio/video signal through DisplayPort Alt Mode. DP 2.0 is backward compatible with previous versions of DisplayPort and incorporates all of the key features of DP 1.4a, including support for visually lossless Display Stream Compression (DSC) with Forward Error Correction (FEC), HDR metadata transport, and other advanced features. The increased video bandwidth performance of DP 2.0 carried over the USB-C connector enables simultaneous higher-speed USB data transfer without compromising display performance. DP 2.0 leverages the Thunderbolt 3 physical interface (PHY) layer while maintaining the flexibility of DP protocol in order to boost the data bandwidth and promote convergence across industry-leading IO standards.

Common mapping for single-stream transport and multi-stream transport allows a single DP port on the source device to drive multiple displays either via a docking station or daisy-chainable displays.

“DP 2.0 offers differentiated end-to-end user experiences, across a multitude of market segments, such as productivity and gaming, as well as wider end-to-end interoperability with various connectivity options. It sets a new paradigm for display interface specifications by providing scalability from power-efficient small form-factor displays, to high-resolution and high-refresh-rate large form-factor displays,” said Syed Athar Hussain, VESA Board Vice Chairman and Display Domain Senior Fellow, AMD.

“Intel’s contribution of the Thunderbolt PHY layer specification to VESA for use in DP 2.0 is a significant milestone making today’s simplest and most versatile port also the highest performing for display,” said Jason Ziller, General Manager, Client Connectivity Division at Intel. “By collaborating with VESA, we’re enabling common building block technologies to come together across a wide range of devices and increasing compatibility to deliver better experiences to consumers.”

You can find more details about the standard as well as configuration examples below!

VESA Releases DisplayPort 2.0 Standard With Support for 16K and 8K Displays

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Higher-resolution Demands Mandate New Developments in Display Interfaces
Industry efforts are underway to push video broadcasting beyond 4K/Ultra HD resolutions, while 8K televisions and PC monitors are already beginning to hit the market. For example, the Japan Broadcasting Company (NHK) has announced plans to broadcast the 2020 Summer Olympics in 8K, and has already begun to broadcast 8K content to viewers.

At the same time, gaming platforms are pushing the envelope on immersive gameplay, driving demand for higher resolutions and video frame rates across PC, laptop, and mobile platforms, including smart phones and VR headsets. Further developments in display interfaces are needed to address these developments.

Tripling Data Bandwidth Performance
The previous version of DisplayPort, v1.4a, provided a maximum link bandwidth of 32.4 Gbps, with each of the four lanes running at a link rate of 8.1 Gbps/lane. With 8b/10b channel coding, that equates to a maximum payload of 25.92 Gbps. DP 2.0 increases the maximum link rate to up to 20 Gbps/lane and features more efficient 128b/132b channel coding, delivering a maximum payload of 77.37 Gbps – up to a three-fold increase compared to DP 1.4a. This means that DP 2.0 is the first standard to support 8K resolution (7680 x 4320) at 60 Hz refresh rate with full-color 4:4:4 resolution, including with 30 bits per pixel (bpp) for HDR-10 support.

Maximizing Gains on USB-C connector
The performance increases enabled by DP 2.0 are through both native DP connectors and the USB-C connector via DP Alt Mode. USB-C allows a single connector for USB data, video data and power. If simultaneous support of SuperSpeed USB data and video is needed, the significantly increased data rates enabled by DP 2.0 give users the ability to have power and SuperSpeed USB data at the same time as super-high-resolution video.

DP 2.0 Configuration Examples
With the increased bandwidth enabled by DP 2.0, VESA offers a high degree of versatility and configurations for higher display resolutions and refresh rates. In addition to the above-mentioned 8K resolution at 60 Hz with HDR support, DP 2.0 across the native DP connector or through USB-C as DisplayPort Alt Mode enables a variety of high-performance configurations:

● Single display resolutions
One 16K (15360×8460) display @60Hz and 30 bpp 4:4:4 HDR (with DSC)
One 10K (10240×4320) display @60Hz and 24 bpp 4:4:4 (no compression)

● Dual display resolutions
Two 8K (7680×4320) displays @120Hz and 30 bpp 4:4:4 HDR (with DSC)
Two 4K (3840×2160) displays @144Hz and 24 bpp 4:4:4 (no compression)

● Triple display resolutions
Three 10K (10240×4320) displays @60Hz and 30 bpp 4:4:4 HDR (with DSC)
Three 4K (3840×2160) displays @90Hz and 30 bpp 4:4:4 HDR (no compression)

When using only two lanes on the USB-C connector via DP Alt Mode to allow for simultaneous SuperSpeed USB data and video, DP 2.0 can enable such configurations as:
○ Three 4K (3840×2160) displays @144Hz and 30 bpp 4:4:4 HDR (with DSC)
○ Two 4Kx4K (4096×4096) displays (for AR/VR headsets) @120Hz and 30 bpp 4:4:4 HDR (with DSC)
○ Three QHD (2560×1440) @120Hz and 24 bpp 4:4:4 (no compression)
○ One 8K (7680×4320) display @30Hz and 30 bpp 4:4:4 HDR (no compression)

Improving Power Efficiency
DP 2.0 also supports VESA’s new Panel Replay capability, which is designed to optimize the power envelope and thermal performance of smaller end devices, such as all-in-one PCs and laptops, with higher resolution displays. Similar to the Panel Self Refresh capability in Embedded DisplayPort (eDP), Panel Replay incorporates a partial update feature that enables the system video processor, or GPU, to update only the portion of the display that has changed since the video frame update, thus saving system power. Advantages include the ability to recharge a device more quickly while at the same time using it.
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[via Anandtech]

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