Laptop screen PLEASE HELP ME!

I have a huge problem, I have something important saved on a laptop and I went to go turn on the Laptop and everything turns on except the screen! I don't know what to do I've tried everything, and the Laptop is rather new so I know it didn't die of old age.... please help me!

Is it the entire screen or just the light in the screen? Sometimes it might seem like the monitor itself is broken when it's just the light. Look closely.

Woohoo! I fixed it! I took out the battery and put it back in and it worked! How strange...