The LCD on the light controller shows the current time and date at the top centre. In the top left it shows the remaining time for court 1 and in the top right is shows the remaining time for court 2. 

Now I can't read these without my reading glasses which is not ideal if, between games, I want to quickly see how much time I've got left to play.  But there is a feature which allows these times to be displayed in a large font:

Simply touch the time that you want to see and it will be displayed for a few seconds enlarged in the centre of the display.