[Chip Chester]

Medium-sized monitors may be used in traditional on-camera teleprompter setups, which require a reversed image for a right-reading display thru the angled "mirror" glass. Prompter text itself is reversed before output from the prompter.

The same technique is used for 'people-prompting' in remote-interview situations, so that each participant can maintain direct eye contact with the camera and the other participant during the interview. Used in both broadcast and video conference set-ups. (In this case, image reversing not required because it's a talking head.)

If it's tiny, it may be configured to be used in a heads-up automotive display, with the image reflected via the windshield. (For GPS mapping data, or virtual instrument panel.) Image reversal in each case would be by the host device rather than the display.

Both of these potential uses would occasionally require menu access.

Chip