LED display

I am currently using a 7 segment display for my Project which is gobbling through the batteries I am using. This project is going to be out in the field for a few days and I need a way to keep the batteries alive. I was thinking that I could turn the LED off, but I cannot figure out a way to do that. Thanks for any and all suggestions.

You obviously have a way to light the LEDs in patterns that represent digits. Just have a pattern for 'blank' and fill the display with that when you don't want any of the segments displayed. If you post your code it would be a lot easier to give detailed suggestions.