backlitboard
nounUK /ˈbæk.lɪt.bɔːd/
US /ˈbæk.lɪt.bɔːrd/
A board that has a light behind it so you can see it in the dark.
The bus stop sign is a backlitboard that glows at night.
OTHER MEANINGS
2. A screen or panel with light shining from behind to make pictures or words bright.
The museum used a backlitboard to show the map clearly.
3. A teaching board that lights up so students can read it in a dim room.
The teacher turned on the backlitboard during the film.
4. A sign at a shop or airport that stays bright even after dark.
We followed the backlitboard to find our gate.