screenguard
nounUK /ˈskriːn.ɡɑːd/
US /ˈskriːn.ɡɑːrd/
A thin cover you put on a screen to keep it safe from scratches.
She put a screenguard on her new phone so the glass would not break.
OTHER MEANINGS
2. A software tool that limits what can be seen or done on a screen.
The school computer has a screenguard that blocks games.
3. A person or device that watches a screen for problems.
The screenguard checked the monitors all night.
4. A protective filter that reduces glare or blue light from a display.
He bought a screenguard to make reading easier at night.