Nexus 7 Display Issues

I've had the Nexus 7 since a week after it launched and have thus far had a great experience using it. It's my first android device that I feel performed the way it should and I've owned a Galaxy S1, Galaxy S2 and now a Galaxy S3 which stutters on quite a few occasions (But so does my Windows Phone and iPod Touch as well)

However when I'm having a dark backround or viewing a black image, and I touch the display with mild force (aka a somewhat natural way to hold it) I can see big circles (not really round, but I hope you get the idea) of white light kind of swimming around.

My way of explaining it may be off, but perhaps you know what the issue is?