DVI(Digital Visual Interface)

DVI (Digital Visual Interface)
Video interface standard covering the transmission of video between a source device and a display device.

DVI was developed in 1999 by an industry consortium, the Digital Display Working Group(DDWG) to replace the "legacy analog technology" VGA connector standard. DVI is designed to carry uncompressed digital video data to a display. When connected to PCs, D-sub converts signal through the process.

Digital >> Analog >> Digital
On the other hand, DVI transfers signals without down converting in high frequency by converting signals from digital to digital. Digitally encoded video pixel data is transported by using multiple serial bit links. At the electrical level, the links use TMDS (Transition Minimized Differential signaling) to improve a problem concerning long distance data transmission.

  • 1. Single-Link : supports 1920 x 1080 [FHD]
  • 2. Dual-Link : supports 2048 X 1536 [QXGA]
  • 3. DVI-D : transfers only Digital signal
  • 4. DVI-I : transfers Analog + Digital signal

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