KM I meant the LG v30, because you said while it flickers it has a different waveform that causes you no trouble. Would be interesting to analyze the difference. It might help understand the difference between "good" and "bad" flicker.
Usable Smartphones?
olgomar That is very interesting. The oscilloscope values are hard to see though. Was the input AC-coupled? Peak-to-peak voltage and frequency of the large spikes (50% brightness) the same as in the sine-like wave (38%)?
By the looks of it I would guess that at 50% the hardware switches from 240 Hz to 60 Hz like my OnePlus 3 does it at ~25%.
Like you I can not tolerate the 240 Hz but only the small 60 Hz pulsation.
But is it small on your device? The peak-to-peak and maximum voltages, which are hard to see in the photos are most interesting.
KM I have been interested in buying a Rigol oscilloscope, but I am unsure if the display flickers or is otherwise uncomfortable. Could you measure the display if you have the time? It seems no one has ever done this before. They seem to use a very special form of LCD that differs from standard ones.
Here is the experiment result of the Rigol measuring itself. It looks like a higher frequency than the OPT101 will allow so not sure what to make of it.
https://imgur.com/a/eEXtcaF
KM The peak-to-peak and maximum voltages, which are hard to see in the photos are most interesting.
The cursor measurements have been added on these ones.
https://imgur.com/a/LdNgP3t
Does anyone know what is going on when the phone is rebooted and a green screen with two gears shows up saying "Android is starting...Optimizing App 1 of 1"??? I am freaking out.
I have never seen this before. I checked and automatic updates are deactivated.
Have they found another way through? I really do not want more surprises...
Pixel 3 is due in about 1 month. I'm hopeful that we will find it usable!
JTL Thanks, it does it all the time now. I googled and read that others have encountered a similar issue upon installing new apps. I did install two new apps recently. I will try to uninstall and see how it goes.
On a different note, my "classic" Nokia 3310 3G is giving me a hard time. Unusable. I cannot believe I am incapable of utilizing what should be the most basic of the phones. So I am in the quest for another solution. Has anyone tested Yotaphone 3? I remembered someone being satisfied with Yotaphone 2, both displays, but right now that model is only available on eBay for 3 times the price of the new edition...
ryans I wonder if it's possible to have some kind of therapy to make people less sensitive to PWM
Cannabis medicine is the closest to that goal I've found.
We need more reverse engineering research to disable PWM on Android phones, similar to what @Wootever did for Samsung phones. His work was great progress though.
To be honest I am not yet sure what I am looking at...
https://shop.oaxis.com/collections/inkcase/products/inkcase-i7-for-iphone
Does anyone know this product? It looks like a second screen rather than a case...
Just a side note because I am confused how some of you talk about AMOLED PWM like it is unavoidable. It is not! There are more and more devices with which you can avoid PWM by setting the brightness manually. Maybe you know this but it did not sound like it.
AGI I think this is the item
https://bgr.com/2018/04/17/iphone-case-amazon-e-ink-screen-iphone-8/
I am sensitive to LED light and I have been using Samsung Galaxy S3 (I9300) for 3 years without any eye strain. The OS I use is Cyanogenmod 10.2 - still pretty fast. You can download it here:
https://androidfilehost.com/?fid=673368273298951513
Also don't forget Gapps (Google apps):
https://devfiles.co/download/xQds6mjJ/gapps-jb-20130813-signed.zip