DisplayPortlisävarusteiden

DisplayPort is a digital audio/video interface developed by the Video Electronics Standards Association (VESA) for connecting a video source to display devices such as monitors, projectors, and televisions. First introduced in 2006 as version 1.0, the standard has evolved through successive releases, including DisplayPort 1.1, 1.2, 1.3, 1.4, 2.0, and the more recent 2.1, each expanding bandwidth, resolution, and feature support.

The interface utilizes a high‑speed serial data transmission over a 20‑wire cable, with dual pairs for transmit and receive signals. DisplayPort supports resolutions up to 8Kp (7680×4320) at 60 Hz in its 2.0 implementation, employing 8b/10b and 128b/132b encoding schemes to manage data integrity. Multi‑stream transport (MST) allows a single port to drive multiple displays in daisy‑chain or hub configurations, enabling complex multi‑monitor setups.

Adaptive sync technologies such as AMD FreeSync and NVIDIA G-SYNC are supported, allowing variable refresh rates that synchronize display frame rates with GPU output, reducing tearing and stuttering. DisplayPort also provides an auxiliary channel for USB data, allowing devices like keyboards and mice to be connected through a single cable in certain implementations.

Unlike HDMI, DisplayPort includes a proprietary link training mechanism that negotiates transmission parameters dynamically, optimizing signal integrity over varying cable lengths and qualities. The connector itself comes in standard (DP) and mini (MDA) variants, with the latter designed for portable devices. The standard’s openness and performance characteristics have made it a common choice in PC monitors, high‑performance gaming rigs, and professional graphics workstations.