The video signal is separated into three signals, one containing the black and white information and the other containing the color information. Separating the color this way avoids 'cross color' effects where closely spaced black and white lines are erroneously displayed in color.

It is the first and only industry supported, uncompressed, all-digital audio/video interface. HDMI provides an interface between any audio/video source, such as set-top box, DVD player or A/V receiver and an audio and/or video monitor, such as a digital television (DTV), over a single cable.