IPhone 3GS black screen
So my phone flashed a white and went black the other day when trying to start it up. I didn't drop it or anything just was on my nightstand, I tried restoring it cause it is recognized by my computer and it supposedly was successful, and and charged it overnight just to make sure it wasn't battery related. Now I can hear notifications and texts but it remains black. Also I have tied the hard restart (home button and top button) for 10-60 second but nothing happens. Really out of ideas, if this has happens to anyone and they fixed it please let me know how. Also warranty obviously experied due to it like 3.5 years old.
Thanks for any input...
iPhone 3GS, iOS 4.3.3