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No Stupid Questions@lemmy.worldEnglish · 9 months ago

What's the reason for high refresh rates?

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What's the reason for high refresh rates?

key@lemmy.keychat.org to

No Stupid Questions@lemmy.worldEnglish · 9 months ago

I was reading an article on the new LG display with a refresh rate of 7680Hz and it says:

While a typical refresh rate for a monitor might be 60Hz-240Hz, an outdoor display designed to be viewed from a distance needs to be much higher

The idea that there’s an intrinsic link between refresh rate and viewing distance is new to me and feels unintuitive. I can understand the need for high brighteness for far view distance. I also could understand refresh rate mattering for a non-persistent (CRT) display. But for an Led display surely you can see it far away even if it refreshes once a second?

Refresh rate normally needs to be high enough to avoid pixels “jumping” between refreshes on high resolution displays, so wouldn’t higher view distances allow you to decrease the refresh rate?

Is the article just spouting bullshit? Or is there an actual link between refresh rate and view distance?

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lurch (he/him)@sh.itjust.works
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9 months ago
It’s because you will see multiple images when turning your eyes or head past it. Imagine looking on a tree to its left, then on one to it’s right. you will see multiple images of the display flickering while doing that. It’s even worse, if you follow a car that’s much closer to you than the display.

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