Iphone screen is blank but still on Outlet

Product Name: Iphone screen is blank but still on Outlet
iPhone 12 Black Screen | Screen Black But Still Working | Screen Won't Turn On – Quick How to Fix - YouTube Outlet, How to fix the iPhone Black Screen of Death | Asurion Outlet, Fix iPhone X Black Screen But Still On | Vibrates | Works Or Black Screen of Death - YouTube Outlet, iPhone 12 Black Screen | Screen Black But Still Working | Screen Won't Turn On – Quick How to Fix - YouTube Outlet, 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 Outlet.