VESA has announced that DisplayPort 2.0 can now be embedded in USB4 with support for up to 16K resolution. It has even higher bandwidth than HDMI 2.1.
DisplayPort 2.0 over USB4
The DisplayPort 2.0 standard was introduced in mid-2019 and supports up to a maximum of 77.4 Gbps of effective bandwidth, three times as high as the previous version of DisplayPort and also significantly higher than HDMI 2.1's 48 Gbps.
By embedding DisplayPort 2.0 into USB4 (with the USB Type-C connector), VESA hopes to leverage the strength of the USB ecosystem. The organization explains that DisplayPort 2.0 via USB4 supports all of the video capabilities of its standard, including 8K and 16K, HDR (High Dynamic Range) and HFR (High Frame Rate).
- "DisplayPort 2.0 delivers a maximum payload of 77.37 Gbps across four lanes (up to 19.34 Gbps per lane) -- supporting ultra-high display performance configurations such as an 8K (7680x4320) display with 60 Hz refresh rate with full-color 30 bpp 4:4:4 HDR resolution uncompressed, and 16K (15360x8460) 60 Hz display with 30 bpp 4:4:4 HDR resolution with compression. With the release of DisplayPort Alt Mode 2.0, all of these high-performance video capabilities are now available to the USB ecosystem," said VESA.
DisplayPort logo on a USB Type-C device notes VESA certified DisplayPort Alt Mode support
DisplayPort is an alternative to HDMI, which is designed for the TV environment, whereas DisplayPort is more aligned with the PC environment. That could change, of course, but at this time no TVs available on the consumer market feature DisplayPort of any type.
- "This major undertaking, which was several years in the making, could only be made possible through the combined efforts of VESA and the USB-IF. Through our latest collaboration with the USB-IF, VESA is now taking care of everything related to high-performance displays over USB-C, whether through a native DisplayPort or USB-C connector, or through tunneling of DisplayPort over the native USB4 interface. DisplayPort is also tunneled through the Thunderbolt interface, making it the de facto video standard across PC and mobile displays," said Craig Wiley, VESA board member and DisplayPort Alt Mode sub-group leader.
VESA expects the first products with DisplayPort 2.0 via USB4 to appear on the market in 2021.
DisplayPort 2.0 key features
DisplayPort 2.0 enables up to 3X increase in video bandwidth performance (max payload of 77.37 Gbps)
- 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
- 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
Beyond 8K resolutions: Example Configurations:
- Single display resolutionsOne 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 resolutionsTwo 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 resolutionsThree 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)
Higher refresh rates and high dynamic range (HDR) support at higher resolutions
Improved support for multiple display configurations
Improved user experience with augmented/virtual reality (AR/VR) displays, including support for 4K-and-beyond VR resolutions.
Advantages of DP 2.0 are enjoyed across both the native DP connector as well as the USB Type-C connector
Support for visually lossless Display Stream Compression (DSC) with Forward Error Correction (FEC), HDR metadata transport, and other advanced features