I had my iPad for years, it is old and today while something black was on the screen (normal, I was looking at somthing black) I noticed some tiny greenish (barely noticed) pixel things on the screen, they are only noticeable when I turn the brightness up a little and I did google "black" and had a look at pure black images full of nothing and had a look at a few.
These defects are absolutely on my screen, it is not dirt or anything becouse I wiped it. They are not annoying but I want to know in case it's bad.
Apparently there is a thing called dead pixel where there are pixels that lay on a screen and do nothing, but I am not sure if this happens on IPad becouse the times I saw about it was on somthing else.