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UNIFIED DISPLAY INTERFACE
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This article contains information about a scheduled or expected future product.
It may contain unverified or unreliable information, and may not reflect the final version of the product. |
Unified Display Interface (UDI) is a proposed improved digital video interface specification based on the existing DVI interface. It is intended to be a lower-cost implementation while providing compatibility with existing HDMI and DVI displays. It provides higher bandwidth than previous digital ports (up to 16 Gb/s in its first version compared to 5 Gb/s for HDMI) and includes a form of Digital Rights Management (DRM) known as HDCP.
UDI is specifically targeted towards the needs of computer monitor and video card manufacturers, as opposed to HDMI which is aimed at high-definition multimedia consumer electronics devices such as television monitors and DVD players.
The connector will have a single row of 22 contacts pitched 0.6 mm apart from each other, looking very similar to the Intel-initiated USB plug which has a single row with only 4 contacts. 3 of the 22 contacts will not be wired but are reserved for undetermined future upgrade possibilities. Transmit and receive plugs are slightly different, and a UDI cable will fit only one way. Bidirectional communication works at a much lower data rate than available for the single direction video datastream.
On December 20, 2005, the UDI Special Interest Group (UDI SIG) was announced. They will work on determining the refined specifications and promoting the interface. Members include Silicon Image Inc., Intel, Apple Computer, LG, Samsung and NVIDIA.
The final specification is expected to be finalized by the end of July 2006. The differences between UDI and HDMI will be kept to a minimum, as both specifications will be aligned for long-term compatibility.
DisplayPort is a competing standard which is also under development.
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