Hello ! I have bought a used samsung galaxy note 2 and it has a problem in its screen:?

I always see another view, not very clear, showing a keyboard and some of the whatsapp trails. It doesnt disappear no matter what I do. It looks like

I always see another view, not very clear, showing a keyboard and some of the whatsapp trails. It doesn't disappear no matter what I do. It looks like this view is "printed" on the screen. What may have cause this problem? And is there a solution for it?

or:I always see another view, not very clear, showing a keyboard and some of the whatsapp trails. It doesn't disappear no matter what I do. It looks like this view is \"printed\" on the screen. What may have cause this problem? And is there a solution for it?

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