What does dvi-d mean in a flat panel monitor?

The DVI interface is the interface standard introduced by the Digital display workgroup DDWG (Digital display Working Group) in 1999 and is the abbreviation for Digital Visual interface, which is a 24-pin connectors. is designed for digital display devices such as LCD monitors. DVI interface has a variety of specifications, divided into Dvi-a, dvi-d and Dvi-i.

The dvi-d realizes the real digital signal transmission.

Dvi-d signal type is digital signal, single channel version PIN number is 18+1 PIN, dual channel version is 24+1 pin, and signal cannot convert to VGA signal.

Dvi-d's dual-channel version of the cost is very high, so only some professional equipment to have, ordinary consumers are difficult to see. So most of the market see is dvi-d version of the single channel.