DisplayPort (DP) is a digital display interface developed to transmit graphics signals. DisplaPort is create in 2006 in order to superseed the VGA port which is very old. DisplayPort mainly designed to connect different videosources into the displays like computer monitor, audio etc.
DisplayPort 1.0 is released in May 2006 and an update to this version is ratified in April 2007 as DisplayPort 1.1. The DisplayPort standard is managed by the VESA (Video Electronics Standards Association).
DisplayPort 1.2 is released in January 2010 was the most important enhancement was the doubling bandwidth which is about 17.28 Gbit/s. This version supports resolutions up to 3840×2160 pixels at the 60Hz refresh rate.
DisplayPort 1.3 version is approved in September 2014. This version can transmit data about 32.4 Gbit/s.
DisplayPort 1.4 is released in March 2016 where the data transfer rate was the same as the previous version but there are some improvements like Display Stream Compression 1.2 and Forward Error Correction. This version support resolution up to 5120×2800 at a 60Hz refresh rate.
The most recent DisplayPort version is 2.0 which provides 40.0 Gbit/s data transmission which is released in June 2019 by VESA. This version supports resolution for 4K for the 60Hz refresh rate.
DisplayPort contains 20 pins which is designed to transmit video and audio signals.
A standard DisplayPort socket will be like below.
DisplayPort vs HDMI vs VGA
DisplayPort is compatible with all major new generation and legacy display connections like HDMI, VGA, DVI etc. DisplayPort can be connected with these diplay connections with simple adaptors or converters.