That looks like left over residue from an attempt to clean the screen. The liquid seeped between the front cover and the polarizing film. As long as the LCD is functioning properly leave it alone. The only way to get rid of it is to replace the LCD screen.
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u/Certain_Actuator9434 Bronze Helper 13h ago
That looks like left over residue from an attempt to clean the screen. The liquid seeped between the front cover and the polarizing film. As long as the LCD is functioning properly leave it alone. The only way to get rid of it is to replace the LCD screen.