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How does OLED burn-in truly happen and why doesn't my phone show any signs of it? (sh.itjust.works)

submitted 4 months ago by UnRelatedBurner@sh.itjust.works to c/asklemmy@lemmy.ml

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Title almost says it all. OLED monitors are getting more and more affordable, but it's almost out of the picture when buying a monitor because of toolbars and HUD elements. I don't understand why monitors "burn-in", when I shine my LED flashlight or some LED xmas lights they won't simply start emitting the same light even when I turn them off. I know it's a dumb comparison, but still, what happens?

The other thing that I don't understand is the fact that I've never seen any signs of burn-in on anyone's phone. Alright, technically that's a lie, I did see some on a work phone (or two), that only had some chat app open, seemingly since ages, and the namebar was a bit burned-in, or something like that, as you'd guess I also didn't interact with that phone a lot. As as said above "but still," I've had my phone for a while now, so does my family and friends, some of us even doomscroll, and I've never seen any signs of burn-in on any (actually used) phone.

so, I can watch my background all day, but I should open my browser every like 3 hours press f11 twice and I'm safe? Ff I'm away just let the screensaver save my screen? In that case why would anyone ever worry about burn it, you almost have to do it intentionally. But if it's really dangerous, like I immerse myself into a youtube video, but it has the youtuber's pfp on the bottom right (does youtube still do that?), and it was hbomberguy's, am I just done, toasted, burnt-in?

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[–] j4k3@lemmy.world 2 points 4 months ago

Oversimplified, lights fade over time; the ones you use more often fade faster.

The primary solution, if I understand it correctly, is jiggling. The image is altered slightly over time to change what pixels are illuminated and how so that one set is not left in the same configuration for too long. Like the ones beside each other are used in tandem and altered slightly to create the same effect. You're seeing an illusion made of quickly flashing red/green/blue/white(maybe) anyways, so it is just a more complicated type of control.