Will newtons rings ruin your screen?

[Nighthawk268]

Just got a Nexus 10 and threw on a poetic Revolution case that has a built in screen protector. I also have a screen protector installed. So this thing has double protection. Lol However after a week I have noticed newtons rings or oil slicks all over the screen. I don't notice them unless the screen is off. So it does not bother me. However is there any risk of permanent damage over time?

 

[Golfdriver97]

Looking on wiki, it seems they are created as interference between two different surfaces. I don't see any reason why this would damage the screen.