Chosen Solution
So, i just cleaned my laptop screen with toner, and after that idk, just found my screen like in this photo, and please help me to escape this. Thanks. Update (04/02/2019) Thanks for your respon,
I wipe the screen with cajuput oil, and this mark still there, so what should i do?
Sadly I suspect you’ve damaged the LCD cover glass or the LCD panel its self is damaged. You need to be very careful as solvents and oils can damage it. At this point you’ll need to live with it or replace the display MacBook Pro 13" Unibody Late 2011 Display Replacement. You might be able to replace the cover glass following this guide MacBook Pro 15" Unibody 2.53 GHz Mid 2009 LCD Replacement picking up at Step19 from this guide.
From the picture I cant tell if that is on the outside or inside of the glass. If it is outside then use a microfiber cloth and scrub it off. If it is on the inside then it is probably condensation on the inside from the cleaner you used. In that case my advice would be to give it time to dry .
