I’m sorry I was not very clear with my question. The review is negative- saying the ‘white’ is more like a dark purple color. I’m not asking how well it shows purple- but the general quality of the display itself.

My bad, I understand now! I think it's at least as good as a Kindle. I understand why someone who is comparing to bleached paper or OLED/modern LCD screens would say it looks purple, but yeah, I have no complaints.

Edited to add: In the picture you can also see the white material at the bottom that is not part of the screen, I would say that is "true white". And the picture also has white pixels on the screen. That's the "dark purple" the review refers to in that case.

Yeah, that's pretty purple for white. But still amazing how far this tech has come.

Wow, these have come a long way.