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DisplayPort technical specifications and advantages

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Author : PURPLELEC
Update time : 2024-03-25 11:43:47
  DisplayPort is a digital video interface standard promoted by the Video Electronics Standards Association. This interface is stipulated to be certification-free and license-free. It is a developing new digital audio/video interface and is mainly suitable for connecting computers and screens, or computers and home theater systems. Intended to replace older VGA, DVI and FPD-Link (LVDS) video transmission interface technologies.
video interface
  DisplayPort technical specifications
  1. DP1.4 has a maximum bandwidth of 32.4Gbps and can support 8K 60Hz and 4K 120Hz HDR high definition.
  2. 8bit/10bit data transmission
  3. Open and extensible standards can accelerate popularization.
  4. Supports 6, 8, 10, 12 and 16-bit color depth.
  5. The complete bandwidth guarantee length of the cable is 3 meters.
  6. The effective transmission bandwidth of 1080p is guaranteed to be 5 meters long.
  7. Supports 128-bit AES DisplayPort Content Protection (DPCP), and version 1.1 supports 40-bit HDCP.
  8. Supporting both internal and external links allows computer manufacturers to reduce costs.
  DisplayPort Advantages
  1. Protocol based on small data packets
  2. Allows easy expansion of the DisplayPort standard
  3. Allow multiple video streams on a single entity connection (in future versions)
  4. Designed to support the connection between internal chips
  5. Allows direct operation of display function options, and can remove the control loop of the display to produce cheaper and thinner displays.
  6. The goal is to replace the LVDS connection inside the laptop panel with a unified link interface.
  7. Allows backward compatibility with single-channel DVI/HDMI; dual-channel DVI/HDMI and ana-log VGA connectors require conversion connectors.
  8. Support RGB and YCbCr color spaces (ITU-R BT.601 and BT.709 formats).
  9. The auxiliary channel can be used for touch panel data, USB connections, cameras, microphones and other devices.
  10. Fewer channels and embedded clocks reduce radio frequency interference (RFI).
  11. Support USB Type-C.
  12. Support 144Hz refresh rate
  DisplayPort multi-screen output
  DisplayPort 1.2 supports MST (Multi-Stream Transport), and a single DP can be connected to multiple displays. To use this feature, the monitor needs to support DP 1.2 daisy-chaining, or use MST Hub to split one DP into three.