Iphone screen went black but still on clearance

Product Name: Iphone screen went black but still on clearance
I dropped my iphone 11 and the screen is black with lines but still works. Can someone tell me whats wrong with it and how to repair it : r/iphonehelp clearance, iPhone X: How to Fix Black Screen (1 Minute Fix) - YouTube clearance, iPhone 12 Black Screen | Screen Black But Still Working | Screen Won't Turn On – Quick How to Fix - YouTube clearance, I dropped my iphone 11 and the screen is black with lines but still works. Can someone tell me whats wrong with it and how to repair it : r/iphonehelp clearance, How To Fix iPhone Black Screen of Death Issue? - ElectronicsHub clearance.