Had this reflection that 144hz screens where the only type of screen I knew, that was not a multiple of 60. 60 Hz - 120hz - 240hz - 360hz
And in the middle 144hz Is there a reason why all follow this 60 rule, and if so, why is 144hz here
With computer displays only limitation is hardware. If I had to hazard a guess, 144Hz is there because that’s approximately maximum supported on widest range of hardware and 144Hz crystals were widely available and therefore cheap. Kind of how there’s a huge market for rollerblade ball bearings. Pretty much all of the power tools are using them. They are simply everywhere because they are cheap.
I was really hoping you were Lemmy’s 1996 rage in the cage account making every conversation about ball bearings
Probably a reference to shittymorph? https://knowyourmeme.com/memes/the-undertaker-threw-mankind-off-hell-in-a-cell
I remember getting ABEC-5 bearings for my blades back in the day. Felt like you were rolling on ice. ABEC-7 was an option, but they were so expensive and the gains were supposedly marginal. Still, I sometimes wonder about what they would’ve been like.
Haha, very little experience with that. But I do know rollerblade bearings are now most popular bearings thanks to low prices because of their initial popularity. Kind of how 18650 cell became popular because of laptops and is now virtually everywhere, including EVs. It’s all playing at large scale with manufacturers.
Not sure what’s the part you are interested in. I did learn about them in school, so perhaps I do have some knowledge you might find interesting.
LCD crystals do have a theoretical maximum, but we don’t have display drivers or transmission standards that support those frequencies.
I have 160Hz screen.
Also, 144/24=6. 24fps is the original fps of the movies. So, 160 is more puzzling from this perspective. It is not divisible by 24 or 30.
75hz here. I thought it was pretty weird. It’s basically extra spicy 60hz.
75hz was because of CRT monitors. This very old Tom’s hardware article goes into the math behind the reasoning
72 Hz was used as a refresh rate for CRT monitors back in the day. Specifically because it was the average threshold that no users reported discomfort from CRT flicker. And 72 * 2.
It is likely a holdover from that era. I think from there, it is a multiple of 24 HZ so movie content scaled smoothly without tearing before vsync? Last part is a guess.
The reason 60Hz was so prominent has to do with the power line frequency. Screens originated as cathode ray tube (CRT) TVs that were only able to use a single frequency, which was the one chosen by TV networks. They chose a the power line frequency because this minimizes flicker when recording light powered with the same frequency as the one you record with, and you want to play back in the same frequency for normal content.
This however isn’t as important for modern monitors. You have other image sources than video content produced for TV which benefit from higher rates but don’t need to match a multiple of 60. So nowadays manufacturers go as high as their panels allow, my guess is 144 exists because that’s 6*24Hz (the latter being the “cinematic” frequency). My monitor for example is 75 Hz which is 1.5*50Hz, which is the European power line frequency, but the refresh rate is variable anyways, making it can match full multiples of content frequency dynamically if desired.
