The screen started layering

mine is a sony bravia ex300 32" lcd tv. and after two years of usage the screen started layering and it was now all over the screen and after few days a white cloud is appeared on the bottom of the screen and now its also gradually increasing all over the screen and making the screen whiter, what i have to do

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@daryaslara56 post some pictures showing what your TV screen looks like. That way we can see what you see. Adding images to an existing question

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