Screen working but black after replacing the battery.

I replaced my battery and now my phone screen is black, although it is working because it will vibrate when I attempt to put the password in and do so wrong. I do not see any type of dim background light. I admit I had difficulty getting the screen connections to snap in when finishing up, specifically the one that is inner most to the phone and covered by the other two. I do worry I was too rough with trying to snap it in- the other two feel like they snap but that one feels more like I just push it into place. I have redone the three snaps multiple times and can’t seem to fix this black screen issue, although I will say that for a split second the screen did turn on yesterday (it was my normal lock screen, no lines, discoloration, etc) while I was messing with it, only to turn off a second later. I could not repeat the occurrence to see why it worked, although I tried. During battery replacement, I did remove the screen and tried to be careful with the angle that I held the screen at while doing so. I was thinking perhaps I should try to buy a new screen and see if that works? I really hope I disn’t damage the inner connections but i’m worried I did. In that case, this would have to be a loss because i’m not skilled enough to repair that. :( Any ideas? Thank you.