The most significant improvement of the new version is the doubling of the effective bandwidth to 17.28 Gbit/s in High Bit Rate 2 (HBR2) mode, which allows increased resolutions, higher refresh rates, and greater color depth.
1.2 ĭisplayPort version 1.2 was introduced on 7 January 2010.
The DisplayPort 1.1a standard can be downloaded for free from the VESA website. It also includes HDCP in addition to DisplayPort Content Protection (DPCP). DisplayPort 1.1 allows devices to implement alternative link layers such as fiber optic, allowing a much longer reach between source and display without signal degradation, although alternative implementations are not standardized.
DisplayPort cables up to 2 meters in length are required to support the full 10.8 Gbit/s bandwidth. ĭisplayPort 1.0–1.1a allow a maximum bandwidth of 10.8 Gbit/s (8.64 Gbit/s data rate) over a standard 4-lane main link. Version 1.1 was ratified on 2 April 2007, and version 1.1a was ratified on 11 January 2008. The first version, 1.0, was approved by VESA on.
This allows for higher resolution using fewer pins. It permits the use of internal and external display connections, and unlike legacy standards that transmit a clock signal with each output, the DisplayPort protocol is based on small data packets known as micro packets, which can embed the clock signal within the data stream. The interface is backward compatible with other interfaces, such as HDMI and DVI, through the use of either active or passive adapters.ĭisplayPort is the first display interface to rely on packetized data transmission, a form of digital communication found in technologies such as Ethernet, USB, and PCI Express. ĭisplayPort was designed to replace VGA, FPD-Link, and Digital Visual Interface (DVI). The interface is primarily used to connect a video source to a display device such as a computer monitor, and it can also carry audio, USB, and other forms of data.
and 30/20 pins for internal connections between graphics engines and built-in flat panels.ġ.62, 2.7, 5.4, 8.1, or 20 Gbit/s data rate per lane 1, 2, or 4 lanes (effective total 5.184, 8.64, 17.28, 25.92, or 77.37 Gbit/s for 4-lane link) 2 or 720 Mbit/s (effectively 1 or 576 Mbit/s) for the auxiliary channel.Ī Mini DisplayPort receptacle (center), with a Thunderbolt 3 port (left) and power input (right)ĭisplayPort ( DP) is a digital display interface developed by a consortium of PC and chip manufacturers and standardized by the Video Electronics Standards Association (VESA). Optional, maximum resolution limited by available bandwidthĢ0 pins for external connectors on desktops, notebooks, graphics cards, monitors, etc. Optional 1–8 channels, 16 or 24-bit linear PCM 32–192 kHz sampling rate maximum bitrate 36,864 kbit/s (4,608 kB/s)