DisplayPort is a digital display interface primarily used to connect a video source to a display device such as a computer monitor, television, or projector. Here's a detailed overview:
History
- DisplayPort was developed by the Video Electronics Standards Association (VESA).
- The first version, DisplayPort 1.0, was released in May 2006, providing a standard for a new digital audio/video interconnect.
- Subsequent versions have included:
- DisplayPort 1.1 (April 2007) - Added support for internal cabling and improved interoperability.
- DisplayPort 1.2 (January 2010) - Introduced features like Multi-Stream Transport (MST), which allows multiple displays to be driven from a single port.
- DisplayPort 1.3 (September 2014) - Increased bandwidth to support higher resolutions and frame rates.
- DisplayPort 1.4 (March 2016) - Added support for Display Stream Compression (DSC) and HDR10.
- DisplayPort 2.0 (June 2019) - Doubled the maximum total bandwidth and introduced DisplayPort Tunneling (DP Tunneling).
Technical Specifications
- Connector Types:
- Bandwidth: DisplayPort 2.0 can support up to 77.4 Gbps, allowing for high resolution and refresh rates.
- Resolution Support: Up to 16K resolution at 60 Hz with DSC (Display Stream Compression).
- Audio Support: Up to 8 channels of uncompressed audio or bitstream of compressed formats like Dolby TrueHD or DTS-HD Master Audio.
- Features:
- Multi-Stream Transport (MST) for daisy-chaining multiple monitors.
- HDCP for content protection.
- Support for Adaptive-Sync (FreeSync, G-SYNC).
- Power delivery over the cable for USB-C implementations.
Advantages
- Higher bandwidth compared to HDMI or DVI, allowing for higher resolutions and refresh rates.
- Support for multiple independent video streams through MST.
- Versatility with USB-C connectivity.
Challenges and Limitations
- Less widespread adoption compared to HDMI in consumer electronics like TVs and game consoles.
- Compatibility issues with older devices and adapters.
- Higher cost of cables due to the need for higher quality materials to support higher bandwidth.
Sources
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