Digital Visual Interface

DVIDVI-IDVI-DDual-link DVIDual-Link DVI-D and DVI-IDVI port, DVIdigitaldual linkdual link DVI
Digital Visual Interface (DVI) is a video display interface developed by the Digital Display Working Group (DDWG).wikipedia
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Digital Display Working Group

DDWG
Digital Visual Interface (DVI) is a video display interface developed by the Digital Display Working Group (DDWG).
The Digital Display Working Group (DDWG) was a group whose purpose was to define and maintain the Digital Visual Interface standard.

Computer monitor

monitorcomputer displaymonitors
The digital interface is used to connect a video source, such as a video display controller, to a display device, such as a computer monitor.
Monitors are connected to the computer via VGA, Digital Visual Interface (DVI), HDMI, DisplayPort, Thunderbolt, low-voltage differential signaling (LVDS) or other proprietary connectors and signals.

VGA connector

VGAVGA portVGA out
Like modern analog VGA connectors, the DVI connector includes pins for the display data channel (DDC).
Many devices still include VGA connectors, although it generally coexists with DVI as well as the newer and more compact HDMI and DisplayPort interface connectors.

DVD player

DVD playersDVDconsumer entertainment device
Although DVI is predominantly associated with computers, it is sometimes used in other consumer electronics such as television sets and DVD players. Some DVD players, HDTV sets, and video projectors have DVI connectors that transmit an encrypted signal for copy protection using the High-bandwidth Digital Content Protection (HDCP) protocol.
HDMI is a digital connection for carrying high-definition video, similar to DVI.

I²C

I2CI 2 CInter-Integrated Circuit
When a source and display are connected, the source first queries the display's capabilities by reading the monitor EDID block over an I²C link.
the 10-pin iPack connector carries I²C; the 6P6C Lego Mindstorms NXT connector carries I²C; a few people use the 8P8C connectors and CAT5 cable normally used for Ethernet physical layer to instead carry differential-encoded I²C signals or boosted single-ended I²C signals; and every HDMI and most DVI and VGA connectors carry DDC2 data over I²C.

Silicon Image

Silicon Image Inc.CMDSiI3x1x
DVI's digital video transmission format is based on panelLink, a serial format developed by Silicon Image that utilizes a high-speed serial link called transition minimized differential signaling (TMDS).
Silicon Image, in cooperation with other companies, has driven the creation of some global industry standards such as DVI, HDMI, MHL, and WirelessHD.

VESA Digital Flat Panel

Digital Flat PanelDFP
This compatibility, along with other advantages, led to its widespread acceptance over competing digital display standards Plug and Display (P&D) and Digital Flat Panel (DFP).
Unlike DVI, DFP never achieved widespread implementation.

DMS-59

Dual link should not be confused with dual display (also known as dual head), which is a configuration consisting of a single computer connected to two monitors, sometimes using a DMS-59 connector for two single link DVI connections.
It provides two Digital Visual Interface (DVI) or Video Graphics Array (VGA) outputs in a single connector.

Video Graphics Array

VGAVGA graphicsVGA card
Featuring support for analog connections, the DVI specification is compatible with the VGA interface.
How discernible this degradation depends on the individual's eyesight and the display, though it is more noticeable when switching to and from digital inputs like HDMI, DVI or DisplayPort.

High-bandwidth Digital Content Protection

HDCPHDCP master key releaseHigh-Bandwidth Digital Content Protection (HDCP)
Some DVD players, HDTV sets, and video projectors have DVI connectors that transmit an encrypted signal for copy protection using the High-bandwidth Digital Content Protection (HDCP) protocol.
Types of connections include DisplayPort (DP), Digital Visual Interface (DVI), and High-Definition Multimedia Interface (HDMI), as well as less popular or now deprecated protocols like Gigabit Video Interface (GVIF) and Unified Display Interface (UDI).

VESA Plug and Display

M1-DAPlug & DisplayPlug and Display
This compatibility, along with other advantages, led to its widespread acceptance over competing digital display standards Plug and Display (P&D) and Digital Flat Panel (DFP).
It was introduced around the same time as DFP, marketed as a replacement of VESA Enhanced Video Connector and an extension of DVI.

Video display controller

display controllergraphics chipVDP
The digital interface is used to connect a video source, such as a video display controller, to a display device, such as a computer monitor.
They support a variety interfaces: VGA, DVI, HDMI, DisplayPort, VHDCI, DMS-59 and more.

Display Data Channel

DDCDDC/CIDDC2
Like modern analog VGA connectors, the DVI connector includes pins for the display data channel (DDC).
DDC2 is not exclusive to the VGA connector, as both DVI and HDMI connectors feature dedicated DDC2B wires.

DisplayPort

SlimPorteDPDisplay Stream Compression
Fixed frequency links, like DisplayPort, need to reconstruct the clock from the data sent over the link.
DisplayPort was designed to replace VGA, DVI, and FPD-Link.

FPD-Link

Flat Panel Display Link
Competing standards are exclusively digital: these include a system using low-voltage differential signaling (LVDS), known by its proprietary names FPD-Link (flat-panel display) and FLATLINK; and its successors, the LVDS Display Interface (LDI) and OpenLDI.
However, OpenLDI lost the video-transfer standards competition to Digital Visual Interface (DVI) in the early twenty-first century, and the result was stand-alone LCD panels using DVI to receive video from a desktop computer.

HDMI

High-Definition Multimedia InterfaceHDMI 1.4HDMI 2.0
HDMI is a newer digital audio/video interface developed and promoted by the consumer electronics industry.
CEA-861 signals carried by HDMI are electrically compatible with the CEA-861 signals used by the Digital Visual Interface (DVI).

8b/10b encoding

8b/10b8B10Brunning disparity
The binary data is encoded using 8b10b encoding.

OpenLDI

LVDS Display Interface
Competing standards are exclusively digital: these include a system using low-voltage differential signaling (LVDS), known by its proprietary names FPD-Link (flat-panel display) and FLATLINK; and its successors, the LVDS Display Interface (LDI) and OpenLDI.
OpenLDI wasn't used in many of the intended applications after losing the computer-to-monitor interconnect application to a competing standard, Digital Visual Interface (DVI).

Radeon HD 2000 series

R600Radeon R600Radeon HD 3000
Some DVI-D sources use non-standard extensions to output HDMI signals including audio (e.g. ATI 3000-series and NVIDIA GTX 200-series).
The card provides 4 DVI outputs or HDMI outputs via dongle and supports CrossFire configurations.

Unified Display Interface

UDI
Unified Display Interface (UDI) was a digital video interface specification based on Digital Visual Interface (DVI).

Digital-to-analog converter

DACDACsD/A
One benefit of DVI over other links is that it is relatively straightforward to transform the signal from the digital domain into the analog domain using a video DAC, as both clock and synchronization signals are sent over the link.
As of 2007, analog inputs were more commonly used than digital, but this changed as flat panel displays with DVI and/or HDMI connections became more widespread.

Transition-minimized differential signaling

TMDSTransition Minimized Differential SignalingPanelLink
DVI's digital video transmission format is based on panelLink, a serial format developed by Silicon Image that utilizes a high-speed serial link called transition minimized differential signaling (TMDS).
Transition-minimized differential signaling (TMDS), a technology for transmitting high-speed serial data, is used by the DVI and HDMI video interfaces, as well as by other digital communication interfaces.

Low-voltage differential signaling

LVDSLow voltage differential signalingLVD
Competing standards are exclusively digital: these include a system using low-voltage differential signaling (LVDS), known by its proprietary names FPD-Link (flat-panel display) and FLATLINK; and its successors, the LVDS Display Interface (LDI) and OpenLDI.
However, Digital Visual Interface (DVI) using TMDS over CML signals won the standards competition and became the standard for externally connecting desktop computers to monitors, and HDMI eventually became the standard for connecting digital video sources such as DVD players to flat panel displays in consumer applications.

Mini DisplayPort

mDPMini DisplayPort 1.2mini-display
With an adapter, the Mini DisplayPort can drive display devices with VGA, DVI, or HDMI interfaces.