Digital Visual Interface (DVI)

Last updated: August 18, 2011

What Does Digital Visual Interface (DVI) Mean?

A digital visual interface (DVI) is a port used to connect display devices, such as LCD monitors or projectors, with the output device. DVI only supports connections between digital-to-digital devices.

Industry group Digital Display Working Group (DDWG) developed DVI, which began as a way to get rid of legacy video display systems based on analog technology. Uncompressed data is sent out over DVI for display on specific display devices.


Techopedia Explains Digital Visual Interface (DVI)

DVI was designed to transfer digital data from computers to display device such as LCD monitors or projectors. The transmitted data is always in binary form. After transferring, each pixel from the source device is reflected the same way on display side. This is different from analog systems, where noise and electric attenuation affects the resulting image on the output display. DVI also has the ability to reduce overall power consumption.

DVI is compatible with high definition multimedia interfaces (HDMI). Although DVI does not support audio data directly, some video cards provide audio-visual data and enable a computer to send the audio-visual data from DVI to a high definition display or television using HDMI. If the DVI or computer hardware doesn’t support such data, then an adapter is used to combine the DVI data with digital or analog audio.


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