My iphone 4 showing blue print of images, what should i do nw?

I do'nt know what exactly happened, i was using my iphone but by chance it shows blue print of all images…

Added (1). It shows blue print of each item on screen… Even iffm playing any game then also blue is showing.

Honestly, why are you spending your time here asking people? Go to the apple store and ask them. They did create the product and know how it works and how to fix it. Unless you know someone that's a technological genius.
Answer mine

Try resetting your iPhone with iTunes, Make sure to back up your content - even after resetting - the phone acts the same then it might be an hardware problem - just go to the nearest apple store.

Contact i-phone customer care center for better suggestion.

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