Iphone 11 screen went black but still works

- My iphone 11 screen went black but still works
- Iphone 11 pro max screen went black but still works
- Iphone 11 screen goes black but still works
- My iphone 11 screen went black but the phone still works
- Iphone 11 pro screen black but still works
- Iphone 11 screen goes black randomly but still works
- Iphone black screen but still on