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The Info List - Unified Display Interface


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Unified Display Interface (UDI) was a digital video interface specification based on Digital Visual Interface
Digital Visual Interface
(DVI). It was intended to be a lower cost implementation while providing compatibility with existing High-Definition Multimedia Interface
High-Definition Multimedia Interface
(HDMI) and DVI displays. Unlike HDMI, which is aimed at high-definition multimedia consumer electronics devices such as television monitors and DVD players, UDI was specifically targeted towards computer monitor and video card manufacturers and did not support the transfer of audio data. UDI was primarily backed by Intel
Intel
with support from Samsung
Samsung
and other partners. In early 2007 Intel
Intel
started supporting the similar DisplayPort
DisplayPort
standard, and both Intel
Intel
and Samsung
Samsung
withdrew from the UDI SIG. There has been no announcements made about UDI since early 2007 and the UDI website is no longer operational. Overview[edit] UDI provides higher bandwidth than its predecessors (up to 16 Gbit/s in its first version, compared to 4.9 Gbit/s for HDMI
HDMI
1.0) and incorporates a form of digital rights management known as HDCP.[1] The connector has a single row of 26 contacts pitched 0.6 mm apart from each other, looking very similar to the USB
USB
plug which has a single row with only four contacts. Three of the 26 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 that available for the single direction video datastream. On December 20, 2005, the UDI Special
Special
Interest Group (UDI SIG) was announced. They worked on determining the refined specifications and promoting the interface. Members included Apple Computer, Intel, LG, NVIDIA, Samsung, and Silicon Image Inc.
Silicon Image Inc.
The UDI specification was finalized in July 2006. The differences between UDI and HDMI
HDMI
was kept to a minimum since both specifications were designed for long-term compatibility. News[edit]

" Unified Display Interface Nears Release". DailyTech. 2006-07-03. Retrieved 2006-08-15.  "Next-gen display standard emerges for PC, HDTVs". EETimes. 2005-12-20. Retrieved 2006-08-15.  "Industry group promotes UDI as successor of VGA graphical interface". TG Daily. 2005-12-20. Retrieved 2006-08-15. 

References[edit]

^ Tuan Nguyen (2007-02-19). "The Future of HDMI". DailyTech. Retrieved 2007-07-16. 

v t e

Audio and video connectors

Analog audio

Banana plug Binding post D-subminiature Euroblock DIN

Mini-DIN

Jack plug RCA Speaker spring terminal Speakon XLR

Digital audio

BNC D-sub S/PDIF TOSLINK XLR

Video

BNC Component RGB Component YPbPr Composite video D-Terminal DB13W3 DFP DIN

Mini-DIN

DMS-59

LFH

DVI

Mini-DVI Micro-DVI

RCA S-Video VGA

Mini-VGA

Audio and Video

ADC Belling-Lee EVC Type F HDBaseT HDMI DisplayPort

mDP

MHL (superMHL) Minijack P&D PDMI SCART

Visual charts

List of video connectors

Other

Thunderbolt USB

v t e

High-definition (HD)

Concepts

High-definition television High-definition video Ultra-high-definition television

Analog broadcast (All defunct)

819 line system HD MAC MUSE (Hi-Vision)

Digital broadcast

ATSC DMB-T/H DVB ISDB SBTVD

Audio

Dolby Digital Surround sound DSD DXD DTS

Filming and storage

DCI HDV

HD media and compression

Blu-ray CBHD D-VHS DVD-Audio H.264 H.265 HD DVD HD VMD MPEG-2 MVC Super Audio CD Ultra HD Blu-ray Uncompressed VC-1

Connectors

Component DisplayPort DVI HDMI VGA

Deployments

List of digital television depl

.