display utility is the basic ImageMagick program for showing images or image sequences (like all the
.png files in a directory) on a X server.
So it works only on X servers and if you run it on Windows the following error message box will be displayed:
For ImageMagick users running Windows there is a corresponding utility called
imdisplay.exe. However this is a contributed application and was not developed by the ImageMagick development team. So it does not have the capability to receive command-line options and parameters for showing images.