There is no more perfect business for LED signage than restaurants, bars, and nightclubs. Announcing menu offerings and specials, especially when also using graphic display of appetizing foods you offer, can entice people to try your menu items.
Promote your daily dining specials
Remind people to make early reservations for special events
Announce featured entertainment—current and future
Promote special events (karaoke night, trivia night)
Promote any charitable work you are doing for or with your community.