Comment by sschueller

Yes, even the ones that have an LED behind each disk which are on in the dark. This display [1] is the same but in the dark [2] you see the LEDs instead.

[2] https://www.urban-transport-magazine.com/wp-content/uploads/...

[1] https://cdn.unitycms.io/images/2padXosoqh99o13dcrN3co.jpg