dead pixels becoming red and evil and start dissapearing

ok so basically i dropped my 3ds FOUR . times and it was ok except for some dead pixels , and then those dead pixels started growing into a whole line on my bottom screen (1st image was a photo of it in its early stages and it got worse than that but i sadly dont have any pics of that sob) and once i was like "welp im gonna have to replace the screen soon" like a week or two after that (like 2 days ago) my pixels became red tinted and i was like "shiiiit my dead pixels done came back from the dead and turned evil" and i didnt think anything of that but now theyre like disappearing ? ? ? like im glad theres a chance all of them might disappear and i wont have to replace my screen but HOW did this even happen lmfao