Content deleted Content added
→Digital data encoding: simplify |
→History: New section. References will be added. |
||
Line 102:
Featuring support for analog connections, DVI devices manufactured as DVI-I are compatible with the analog [[VGA]] interface<ref name="2000 Press Release">{{cite news|url=http://www.ddwg.org/articles.asp?id=22|title=Digital Visual Interface adoption accelerates as industry prepares for next wave of DVI-compliant products|date=February 16, 2000|publisher=DDWG, copy preserved by [[Internet Archive]]|access-date=29 March 2012|url-status=bot: unknown|archive-url=https://web.archive.org/web/20070828233809/http://www.ddwg.org/articles.asp?id=22|archive-date=28 August 2007}}</ref> by including VGA pins, while DVI-D devices are digital-only. This compatibility, along with other advantages, led to its widespread acceptance over competing digital display standards [[Plug and Display]] (P&D) and [[VESA Digital Flat Panel|Digital Flat Panel]] (DFP).<ref name="Competing standards">{{cite web|url=http://www.tomshardware.com/reviews/tft-guide-part-3,117.html|title=TFT Guide Part 3 - Digital Interfaces|last=Eiden|first=Hermann|date=July 7, 1999|publisher=TomsHardware.com|access-date=29 March 2012}}</ref> Although DVI is predominantly associated with computers, it is sometimes used in other consumer electronics such as [[television set]]s and [[DVD player]]s.
==History==
An earlier attempt to promulgate an updated standard to the analog [[VGA connector]] was made by the [[Video Electronics Standards Association]] (VESA) in 1994 and 1995, with the [[VESA Enhanced Video Connector|Enhanced Video Connector]] (EVC), which was intended to consolidate cables between the computer and monitor. EVC used a 35-pin [[Molex]] MicroCross connector and carried analog video (input and output), analog stereo audio (input and output), and data (via [[USB]] and [[FireWire]]). At the same time, with the increasing availability of digital flat-panel displays, manufacturers began exploring digital video transmission to remove the analog/digital conversion; the EVC connector was reused by VESA, which released the P&D connector in 1997. P&D offered single-link TMDS digital video with, as an option, analog video output and data (USB and FireWire), using a similar 35-pin MicroCross connector, in which the analog audio and video input lines from EVC were repurposed to carry digital video.
Because P&D was a physically large, expensive connector, some companies developed the DFP connector (1999), which stripped the functionality P&D down to digital video transmission only using a 20-pin [[micro ribbon connector]]. DVI chose a different priority and stripped the data functions from P&D, using a 29-pin MicroCross connector to carry digital and analog video. Critically, DVI allows dual-link TMDS signals, meaning it supports higher resolutions than the single-link P&D and DFP connectors.
==Technical overview==
| |||