DVI (Digital Visual Interface) is a digital display interface standard formulated by the digital display working group (DDWG) established on the Intel Developer Forum in September 1998.
The DVI digital terminal is better than the standard VGA terminal signal. The digital interface ensures that all contents are transmitted in digital format, ensures the integrity of data in the transmission process from the host to the monitor (no interference signal introduction), and can get a clearer image.
DVI interface is mainly used to connect with computer graphics card with digital display output function to display RGB signal of computer.
DVI interface (digital video interface) is used to replace VGA analog interface. Because digital signal is transmitted, digital image information does not need any conversion, so the signal does not decay, and the color is purer and more realistic. At the same time, single channel DVI supports 1920 at most × 1200 resolution, dual DVI, up to 2560 × 1600 resolution. However, in the field of projectors, the popularity of DVI is very low, so in many cases, users use HDMI HD interface to connect computers and projectors.