(2) A clear touch panel that allows the user to command the computer by touching ... The part of the screen that was overlaid is saved and restored when the screen overlay is removed.

It's a helpful feature, but it could be dangerous if you're not careful Screen overlay is a feature on Android devices that ...

Numbered HCEPM0x002A, the overlay is 368 x 220mm with a 346.6 x 195.6mm viewing ... commercial kitchen and cooking equipment, public computer terminals, medical systems ad explosion-proof equipment.