About the AVM4227Q - 22" Rugged Quad Display
The AVM4227Q offers six screen modes:
Full screen mode displays only one input signal.
Picture-in-picture mode displays two input signals simultaneously, one in a large format and one in a smaller window, whose position is configurable.
Picture-by-picture (or side-by-side) mode displays two input signals next to each other as equally-sized images.
Quad mode displays four input signals, in four equal sizes.
Quad horizontal mode displays input signals as one large and three small images along the top or bottom side of the display.
Quad vertical mode displays input signals as one large and three small images along the left or right sides of the display.