That is a display in Suvarnabhoomi Airport. Walk out of the airport after immigration and customs and there is a Taxi stand outside. Take the authorized taxis only. Ignore people who come and ask you. There are two types of queues- One for the small Taxi and that can take only two luggages. If you have more luggage, take the queue for large taxi.
You have to take a token and wait for the display of that token in the line.