Is it normal for such display types to have a ghosting effect when it goes to another page or "
this" is another one of Ledger's masterpieces?
That's normal for E Ink displays, and you can see that on some Kindles as well.
You guessed correctly: the effect is known as "ghosting". The way it's explained, is that E Ink displays are made up of black and white particles. Every time the screen changes, those particles get rearranged to create the next elements on screen. Unfortunately, it also happens that the previous elements don't change completely, so it looks like you can still see what was there before.
Those that are new to E Ink ebook readers like Kindles, Kobos and Nooks often ask if its normal to see faint text from previous pages on the background of the screen.
The effect is entirely normal with E Ink screens, to a certain extent, and it is often referred to as ghosting. E Ink displays are composed of tiny capsules of black and white particles that get rearranged every time the screen changes, and sometimes they dont fully change.
Over the years E Ink has made an effort to speed up the refresh rate and minimize full screen flashes, but this results in more ghosting.
Ghosting is an afterimage that remains on the screen after the page has turned or anytime the screen changes.
The ghosting effect appears as a faintly visible grayed-out version of the previous page or image.
https://blog.the-ebook-reader.com/2019/10/28/seeing-faint-background-text-on-ebook-readers-is-normal/