Hi, I was looking through a pair of 3D glasses last night at my mobile phone screen and saw something really cool. If the screen is lit and you tilt it, at various angles you see a circular rainbow effect. The different colours all form perfect circles around each other. I have been trying to find out what causes this circular rainbow pattern but to no avail. Please could someone explain what's going on? I would guess it would have something to do with the polarised light through the glasses and causing some type of interference with the pixels - but not sure though. Many thanks!