Default [Help] Dead screen before and after screen replacement

Hey guys, so a couple of weeks ago I dropped my N4 in water for about 10 seconds, as I was attempting to shut it down the screen flickered and it all went dead.

Fine, so after a week taken apart and in rice the battery is screwed, standard stuff, bought an OEM replacement battery, and then it turned on, worked as it should, except the screen was completely dead, no backlight no nothing.

Again fine, I order a non-OEM screen/digitizer/frame assembly, it arrived today and after being god damn sure everything is correctly assembled I power it on to find the screen is still completely off even though the phone is starting up and working normally (I can hear it unlocking, I can receive calls etc)

Is there another component that has to do with the signal to the screen that may have suffered from the water damage?