VGA(Video Graphics Array) interface is also called D-sub interface. The standard was defined by IBM in 1987 for computer monitor display via analogue signal.It is more than 20 years old but still very common. Inside VGA signal, there are Red, Green and Blue signal together with Horizontal and Vertical synchronization signal.
HDMI(High-Definition Multimedia Interface) is the new standard interface for multimedia application.Now HDMI is eplacing the traditional interface on DVD player, TV and other video device, it can simplify the connection and provide high andwidth for datat r a nsmi ssion of digitalized audio and video signal.Application: HDTV(High Definition Television), PDP(Plasma Display Panel), DVB(Digital Video Broadcasting),DVD,SLC(Satellite communication),PC,MC(Media Center), STB(Set-top Box).
DVI is Digital Visual Interface. The most common DVI interfaces are DVI-Digital and DVI-Integrated,DVI-D only supports d igitalsignal transmission while DVI-I supports both analogue and digital signal ransmission,inotherwords,DVI-Ihasbetter compatibility.
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