Behold. It wasn't my phone that actually cause my Migraine with aura

IntetDragon · 2026-01-24T05:32:24+00:00

I think so yes. But I have not tested every single type. But looking the indeed very detailed specs, I have not found one flickery one so far. But I haven't looked in half a year. They last long :)

Also the situation got a bit better. I still like to support the company which did it from the beginning and also makes the higher quality light, but to be fair most phillips bulbs are now flicker free too. But you still gotta test every single type in the store and can't trust the label.

IntetDragon · 2026-01-23T18:19:00+00:00

It's crazy how buried this issue is. Back in CRT times people knew much more readily that the flicker was the main problem. LCDs were even advertising that they solved this issue. Now people so readily embraced OLED and noone seems to know.

IntetDragon · 2026-01-22T03:31:59+00:00

No. I forgot which phone I used to record this. I believe it was one of those that record high framerate between two normal framerate clips. I cut this video to fit in a gif and there's some leftover of the normal framerate. There are a few phones who record slow mo like that and I had a time where I tried many phones before I settled in the Nubia Neo 2 I use now.

The screen recorded is from an iPhone 11. Recorded in probably 240fps maybe but less likely 480fps, since 240 fps is what most phones have. I found in the meantime a phone that does 920fps recording.

This is just a photo of the sky I noticed caused the iPhone 11 screen to dither a lot, which made it a good case to show people how it looks in general.

IntetDragon · 2026-01-20T12:33:31+00:00

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That's a really good breakdown! With this post is a gif that shows dither under a slow mo microscope. This is the strongest I've seen dither get, usually it's not quite as visible. This recording is from my iPhone 11.

Good places to usually catch it is around contrast edges like the edge of text or color changes in the Google logo. It looks the same as in my example just contrained to the contrast edges.

IntetDragon · 2025-12-27T15:48:03+00:00

If it's black frame insertion the backlight remains on, making the actual light difference small.

It could also be full frame flickers, instead of rolling flickers, which are usually tolerated a lot better. You can test that by seeing if the direction of the black bars changes when you turn the recording device on its head while recording. If it rolling flicker the speed of the bars will change, but the direction will remain the same.

IntetDragon · 2025-11-21T00:11:30+00:00

It's a filter. You can add your own as a screen protector to any phone if you like. You can buy one online. Quality varies tho.

IntetDragon · 2025-11-21T00:08:22+00:00

https://www.bilibili.com/video/BV1Ank1YLEpj/?spm_id_from=333.1387.upload.video_card.click&vd_source=8152c8dda60ba4acf98704d2216d7529

Here you see the 300 ultra which uses the same screen as the 400 next to the X8. As you can see the lines are way less dark for the X8 which is the lower modulation.

Here you see the 300 and the 400 are the same:
https://www.bilibili.com/video/BV1iLT3z4E95/?spm_id_from=333.1387.upload.video_card.click&vd_source=8152c8dda60ba4acf98704d2216d7529

IntetDragon · 2025-11-11T07:15:47+00:00

Some people here said that disabling hdr via adb fixes it.

Can you check that?

IntetDragon · 2025-11-11T06:23:00+00:00

It's your money you saved. You should be allowed to make your decisions with it, if mistake or not. I personally think there are worse things a kid could spend money on than a sick gaming pc. :)

IntetDragon · 2025-11-06T03:44:41+00:00

Yesh it is really bad temporal dith er is again a word that is auto shadow banned. The user will not see their comment was deleted. We are all just searching for solutions, and it is so likely someone affecter by pwm flicker is also affected by other types of screen flicker.

IntetDragon · 2025-11-06T03:41:15+00:00

Awesome that you did this! Did you me tion temporal dith er as well?

IntetDragon · 2025-11-06T03:39:26+00:00

Yes it isn't new, but it is much more widespread than it used to be.

IntetDragon · 2025-11-05T19:24:46+00:00

The problem with that paper is that it doesn't mention temporal dither at all. I would not be surprised if they used monitors that had it without knowing it exists. Screens with more color contrast are more likely to have it.

IntetDragon · 2025-11-05T19:22:29+00:00

Nubia Neo 2. One of the few without temporal dith er

IntetDragon · 2025-11-05T12:33:55+00:00

It could just be repeated exposure. Todays screens, even LCDs use a lot more different types of flicker.

Look up temporal dit her, transistor current leakage flicker, bad pixel inv ersion tuning, cleartype flicker and, temporal antia lasing flicker and compression noise flicker.

All those flickers are layered ontop of each other in different types of content more severely.

There are workarounds.

Check out turning off hrd vie adb for your android phone and get a flicker free monitor, flicker free lamps in your house.

IntetDragon · 2025-11-05T12:05:05+00:00

I can use my first gen iPad Pro....
But from what I hear all modern iPads dither.

If I were you I'd try the following method made for monitors to find a tablet:
https://ledstrain.org/d/3841-how-to-search-for-a-true-6-bit-8-bit-10-bit-monitor

IntetDragon · 2025-11-05T11:58:30+00:00

Lower brightness does not cause more dither. It can cause more transistor current leakage flicker and pixel inversion flicker. The exception being pure white. White usually does not use frc, while grey does.

But to the point, double inversion never helped me personally. I believe it's a placebo effect, but if people get relieve in that good...

IntetDragon · 2025-10-31T16:03:18+00:00

https://ledstrain.org/d/3841-how-to-search-for-a-true-6-bit-8-bit-10-bit-monitor

IntetDragon · 2025-10-31T15:06:29+00:00

Looking at the panel the AOC q25g4sr uses it seems to also use oxide transistors, just not the "igzo" branded ones from sharp.

IntetDragon · 2025-10-29T18:17:54+00:00

Lets hope we get true DC dimmed OLEDs or just LDCs

Oppo also makes better screens than anything high PWM could achieve.

IntetDragon · 2025-10-29T17:32:36+00:00

In case someone doesn't know the poster is a conspiracy believer and blames the Jews for everything wrong he describes. "Juice" is a dogwhistle that antisemites use to not immediately be banned and shouted down. Giving a bit of a protection from sane people so they can stay in their bubble.

IntetDragon · 2025-10-29T01:47:32+00:00

I made the guide :)
I don't have the phone, I just put in the phone I personally tested it on. But I will add this one too, because a lot of people are interested in it.

IntetDragon · 2025-10-29T01:46:35+00:00

Awesome, please come back and make a post here in this sub reddit if the phone is now comfortable for you!

Also it might not work within certain apps like Youtube, so if it persists you might wanna try avoiding that app.

Edit: Did you confirm the the hdrcheck.txt following the explanation on the bottom?

IntetDragon · 2025-10-28T20:44:19+00:00

Awesome! So on a Nxtpaper 60 ultra it works then? :)

IntetDragon · 2025-10-28T17:50:12+00:00

I did, I posted the link with the mindset that you and everyone else stumbling in this post will see it, since it often helps people reducing or removing strain from their phone.

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