What is DVI?
There are three types of DVI connectors: DVI-D, DVI-I, and DVI-A. DVI-D True Digital Video DVI-D is used for digital connections (like DFP or P&D-D)) between source video (video cards) and digital LCD (or rare CRT) monitors. This provides a faster, higherquality image than with analog, due to the nature of the digital format. All video cards initially produce a digital video signal, which is converted into analog at the VGA output. The analog signal travels to the monitor and is re-converted back into a digital signal. DVI-D eliminates the analog conversion process and improves the connection between source and display. All PureLink DVI cables are DVI-D. DVI-A – High-Res Analog DVI-A format is used to carry a DVI signal to an analog display, such as a CRT monitor or HDTV. Although some signal quality is lost from the digital to analog conversion, it still transmits a higher quality picture than standard VGA.
DVI or Digital Video Interface was first developed and introduced by the Digital Display Working Group. Their main aim was to try to achieve the best picture quality possible from analog to digital devices. There are three different types of DVI, which are DVI-A (analog signal), DVI-,D (digital signal) and DVI-I (integrated analog or digital). These connectors allow the connection of various devices such as a VGA monitor or large screen television. If a digital signal is sent to an analog monitor then the signal is converted to analog but if the signal is sent to a digital source such as a LCD television then there is no need for any conversion. Quality is enhanced when dealing with since converting to analog can lead to a loss in image sharpness.
DVI stands for Digital Visual Interface and was created by the Digital Display Working Group (DDWG). Its original design included conversion of analog signals into digital signals to accommodate both analog and digital monitors. Data is transmitted by using the transition-minimized differential signaling (TMDS) protocol and providing a digital signal from the PC’s graphics subsystem to the display. There are three “flavors” of DVI: DVI-A for analog signals such as VGA, DVI-D for digital signals (the DVI signal all consumer home theater products use) and DVI-I that is a combination of DVI-D and DVI-A. DVI-D supports two levels of performance; single link and dual link. While all consumer home electronics gear is currently designed around the DVI-D single link standard, a dual link cable is 100% single-link compatible and offers the benefit of future adaptability for wide bandwidth applications. DVI-D is a fully digital video transport protocol that supports all digital video formats inc
