To protect the high resolution screen of your Apple iPad, ideally you should take your iPad tablet to a local Apple store to get the screen cleaned & install the screen guard case properly. It is also advisable to go in for a good hard case cover. Remember, though, that it is a good idea not to put just any cover at all, as it could result in heating up of your iPad tablet. Go for well-established & recommended brands. 3 reputed brands in the market are Otterbox, Belkin and Capdase.
Let's have at the Otterbox product.