It's entirely possible that you knocked the ribbon cable for the screen loose... Unfortunately, without taking the phone apart, it's difficult to say for sure.
If you look at images for replacement screens, you can see that there is only one ribbon cable that leads to the screen (presumably for power/fingerprint scanner)
It's entirely possible that you knocked the ribbon cable for the screen loose... Unfortunately, without taking the phone apart, it's difficult to say for sure.
If you look at images for replacement screens, you can see that there is only one ribbon cable that leads to the screen (presumably for power/fingerprint scanner)