My iPod 5th gen has a very dark screen, help!

My battery died, so I plugged my iPod in to charge, however, the screen was very dark. I thought the problem might correct itself when it became fully charged, but it stayed the same. Changing the brightness in the settings menu doesn't do anything. I've also tried to reset all the settings on the iPod, but nothing happens. As far as I know, my iPod wasn't damaged in anyway beforehand. Is there anything else I can try?