|This is what it looks like to me|
It is easiest to see this if you stare at the screen for a few moments, then quickly tilt your head to the side. To me, the effect usually looks like a yellow, butterfly-shaped pattern, about 2 cm/1 inch wide. Once you have seen it, you can't unsee it!
Some people can see this effect also in the sky, especially close to the horizon where the daylight is most polarised.