What are the main differences between monitors?

Question

Monitors

Hello!
Since I am not well versed in the topic and articles with reviews of monitors and their matrices tell me little, I want to clarify this question. What is the fundamental difference between monitors for 10, 25, 50 and 100 thousand rubles, with the same diagonal and screen resolution?
As far as I understand:
1) This is primarily a matrix and its color reproduction - the more modern and expensive the technology, the richer the picture and the more correct the colors.
2) Additional chips - interfaces, adjustments and more.
3) The more expensive - the less harmful the monitor for the eyes. These are my guesses.
Interested in the opinion of professionals in this matter, preferably in simpler language, since the articles "did not master".
Thank you!

Answer 1

1) Basically yes. Not only color reproduction, but also all sorts of viewing angles, etc.
2) Well, it hardly adds much to the price
3) Directly - no. Indirectly - viewing angles, quality and so on - yes.
In general, would you clarify - for 10 and for 100 thousand - are other characteristics equal? Maximum resolution e.g.