Broken screen backlight still on iphone 5

[casperibz]

I broke the screen on my iphone 5 it was still working for a while but then my child got some food on it where the bits of glass had broken off and the screen went off a while back now, but the backlight still comes on when I turn on does that mean the phone still works and I just need to replace the screen?

I should add nothing happens when I plug it into the PC but then the phone does have a passcode on it and it's not trusted to this pc, but it doesn't recognize it,,,

 

[casperibz]

Just discovered it is recognized in DFU mode if that means anything...

 

[casperibz]

Last night I decided to restore the phone to see how it went and if I got any errors, I didn't it went through the full update and restore, but at the end when it said your phone is restarting and after restart should be displayed nothing happened, the phone wasn't recognized again.

Is this related to the screen needing replacing or does that mean there is probably more damage to something inside the phone....

Any help would be much appreciated...