DisplayPort 2.0
Triple 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 operating at a link rate of 8.1 Gbps/lane. Using 8b/10b channel encoding, this equates to a maximum payload of 25.92 Gbps. DP 2.0 increases the maximum link rate to 20 Gbps/lane and features more efficient 128b/132b channel encoding, with a maximum payload of 77.37 Gbps - a threefold increase compared to DP 1.4a. This means DP 2.0 is the first standard to support 8K resolution (7680 x 4320) at a 60 Hz refresh rate, full color 4:4:4 resolution, including 30 bits per pixel (bpp), and HDR-10 support.
The performance improvements achieved with DP 2.0 are achieved through the native DP connector and the USB-C connector through DP Alt mode. USB-C allows a single connector for USB data, video data and power. If support for both SuperSpeed USB data and video is required, the significantly increased data rates supported by DP 2.0 enable users to obtain power and SuperSpeed USB data simultaneously with ultra-high resolution video.
DP 2.0 configuration example
With the increased bandwidth of DP 2.0, VESA offers a high degree of versatility and configurations for higher display resolutions and refresh rates. In addition to the aforementioned 8K resolution at 60 Hz with HDR support, DP 2.0 on the native DP connector or USB-C as DisplayPort Alt Mode enables a variety of high-performance configurations:
Single display resolution
One 16K (15360×8640) display @ 60Hz and 30 bpp 4:4:4 HDR (with DSC) One 10K (10240×4320) display @ 60Hz and 24 bpp 4:4:4 (uncompressed) 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 (uncompressed) Triple display resolution Rate
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 (uncompressed) When passed DP Alt Mode When using only two lanes on the USB-C connector to use SuperSpeed USB data and video simultaneously, DP 2.0 can activate the following configurations:
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 (uncompressed) One 8K (7680×4320) display @ 30Hz and 30 bpp 4:4:4 HDR (uncompressed) ) "As an open standards body made up of more than 280 member companies across the electronics value chain, VESA is uniquely positioned to anticipate what the display market will demand for several years and add new features to our standards well in advance of demand," "Alan Kobayashi said. Chairman of the VESA Board of Directors and Chairman of the VESA DisplayPort Task Force. “DP 2.0 represents one of our most important milestones in DisplayPort’s history and is the culmination of years of hard work and significant improvements to this ubiquitous standard. It paves the way for a major inflection point in video technology compared to previous versions of DisplayPort. Smoothing the path to things like UHD, 4K, 5K, USB-C and HDR video, DP 2.0 will help take the industry to the next level - enabling higher frame prices and resolutions up to 8K and beyond,
Improve power efficiency
DP 2.0 also supports VESA’s new panel replay feature, which is designed to optimize the power range and cooling performance of small end devices with higher resolution displays, such as all-in-one PCs and laptops. Similar to the Panel Self Refresh feature in Embedded DisplayPort (eDP), Panel Replay includes 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 was updated, thus conserving system power. Advantages include the ability to charge devices faster while using them.
DisplayPort 1.4
The final version of the DP 1.4 connection port specification in February 2016. The new standard is based on the DP 1.3 specification in September 2014. The bandwidth remains unchanged but Display Stream Compression technology and Forward Error Correction are added. , high dynamic range data package (HDR meta transport), the audio channel has also been upgraded to 32 channels 1536 KHz sampling rate, which will bring 8K level (7680x4320) 60Hz output to laptops, smartphones and AIO all-in-one machines, and 4K Can go up to 120Hz.
DisplayPort 1.3
On September 15, 2014, the Video Electronics Standards Association released DisplayPort 1.3, with a maximum bandwidth speed of 32.4 Gbps (HBR3), an effective bandwidth after encoding of 25.92 Gbps, and support for 4K (3840X2160) 120hz, 5K (5120X2880) 60hz, 8K (7680X4320) 30hz.
DisplayPort 1.2a
On May 12, 2012, the Video Electronics Standards Association announced that DisplayPort 1.2a added "Adaptive-Sync" technology that can dynamically control the screen update rate by the video output end, allowing the screen to fully match the instructions of the video output end to update the screen. .
DisplayPort 1.2
Published on December 22, 2009. Its biggest change is that the transmission speed has doubled to 21.6Gbit/s (High Bit Rate 2 (HBR2) mode) and supports 4K (4096X2160) 60Hz, thus supporting higher resolution, frame rate and color depth. Mini DisplayPort designed by Apple is also compatible with this standard. Supports 3D and multi-streaming. This version is currently the mainstream.
DisplayPort 1.1a
Released in January 2008. DisplayPort 1.1 allows the use of other transmission media (such as optical fiber), increasing the transmission distance, but does not standardize other transmission media. Also adds HDCP to DisplayPort Content Protection (DPCP). Currently rarely used.
DisplayPort 1.0
Released in May 2006. Bandwidth 10.8Gbps. The maximum transmission speed of DisplayPort 1.0 is 8.64Gbit/s and the length is 2 meters.
