Why the hertz of the vast majority of device screens are at 60, why not choose a rounder number like 100?

Question

I have always seen how the screens of the devices are closed at 60 or 59.95, I do not understand why the standard is 60 and not a rounder and more manageable number to make comparisons like 100hz, I understand why all the movies are at 24 hertz but I do not understand why they always it’s about 60hz when you find a screen in the wild, is because costs? I mean, on gaming the standar is going up
since the last years but the standar is still 60

In: 0

Answer 1

I think it comes from the mains frequency. In former times, when precision timing equipment was expensive or very cumbersome, it was an obvious choice to sync video display to the mains frequency. Somehow, this persisted until today and was never changed, even though it does not make much sense anymore.