any ideas what could have caused this as my sister says the baby spilt oat milk on the laptop but i think it has been dropped, if it is just oat milk will it dry out or will the screen need to be replaced
Wait and see if it works after a while. After any spil you don't want to turn on a computer for a day or two till you are sure everything is dry again.
Does not look like this will fix itself though, need a new screen.