Screen Static Problem?

I got this iPad 2 since july 2011 as a present.

And just yesterday, out of the blue, these static lines appeared.
And NO, I did not drop it or spill water on it, or sit on it, or put it on the stove, or put a bag of magnets beside it.
This just happened. I rarely turn my iPad off. I don't know if I'm supposed to.

It is confined physically to that place. So if I turn the screen, it will still appear in the same place.
It is especially noticeable on Safari. For other programs it's still there but less prominent.
I've uploaded some pictures. The first 2 shows what it looks like on Safari, with or without a webpage.
And the third picture just shows the home toolbar. If you look closely, you can still see the static lines especially when it's on a white background.

I have no idea what it's called so I can't even google the problem.

Does anyone know what this is? Or how to fix it?

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