Wrightpt1 Not sure about the refresh rate, I'm not sure what the Galaxy S5's was, but it's probably the same as the S8's. The only screen that works well-enough for me is a laptop Lenovo T430s. It has PWM at anything but the brightest setting, but it's not too bright, so it doesn't bother me.

    Wrightpt1 You mentioned awhile ago that cf.lumen seemed to help? Does it still help you? Have you tried the built in blue light filter from the settings?

      ensete Have you found any more updates about this? I haven't been able to find a device that works for me that runs Android > 6

      I have yet to find any device running Android above 5 that works, although I hear that some 6 OS'es have generic color profiles and might work. I might have to switch back to iPhone, sadly.

        ryans
        hey. how long have you the htc 10 tested? It takes even with my htc one mini 2 some days till I get used to it?

        I really need a solution for a new smartphone now.

        what about htc one m9?

          Harrison I tried it for a few hours and it still bothered me. Should give it another go, i'm almost afraid to try in fear of another migraine.

          ryans All the smartphones with very few exceptions(sharp, razr etc.) have a 60Hz refresh rate.

          The refresh rate is not such a big deal because you use your smartphone mostly for static content.

          The BIG problems is PWM which simulates lower brightness by switching the display of at relatively low frequency.

          Almost all smartphones with OLED/AMOLED/POLED displays use PWM at about 240 Hz. That is low enough to cause BIG problems if you use it in a dark environment.

          The only exception that I know of was LG Flex2 which didn't use PWM and had an POLED screen.

          Wrightpt1 All Samsung Galaxy S versions use PWM at a low frequency of 240Hz.

          If you didn't have problems reading from a Galaxy S5 in a dark environment than you are not sensitive to flicker.

          Do you get computer vision syndrome? Sand in eye sensation?

            PuffyCloud you are correct. Feel very fortunate after reading how affected ppl are by the pwm. I may occasionally feel it in the prefrontal cortex area (I'm guessing) behind the upper middle part of my forehead. By flipping through screens swifly.

            I am on my s8 now and it's a okay experience the majority of the time except if outside. Also, I will occasionally feel a bit of discomfort in the corner of my eye but I think it's my environment. Something reflecting light in my peripheral vision while I'm staring at the screen. I try make my environment more and more conducive every day to looking at a screen.

            And when I type occasionally I can feel the discomfort when new letters appear on the screen. Like muscles in my forehead or on my cheeks. I think this is environment to. This happens much less with the blue light built in filter.

            Usually, I can switch positions and these things will be much less apparent. Example, if laying in bed. One side of my face is on the pillow. While the other is exposed to a mostly dark room. My left eye (exposed to the room) will let me know it's not comfortable sometimes. Things in the room still reflecting even with low light. But the right eye is fairly happy.

            Any synthetic or petroleum-based material will reflect the light worse (any light maybe =') ) . 100 percent cotton seems to not reflect the blue light as bad. I put this on the walls in my office and am going to try some 100 percent bamboo cotton or traditional cotyon sheets with no microfiber I think to see if the typing in bed is better.

            I still haven't gotten my issues down to a science. But being productive by consuming info through screens seems with in reach.

            Lastly, I bought goggles to keep reflection from the edge of my eye and it helped a ton. They fogged up but it was a huge relief in terms of me closing in on what makes my eyes happy.

            I had prk done in one eye just over a week ago. Thus far it has allowed me not to wear glasses and looking at the screen is so much better. I still wear the goggles sometimes. I hate to look at my 1080p monitor. That thing is junk compared to this device.

            Im considering a 5k monitor. Ohh the price tho. But the experience may be worth it. hate saying I'm desperate but I am a bit after looking at the resolution on this phone for longer periods at a time. And the going back to the monitor.

            • JTL replied to this.

              ryans I haven't used the cf. Lumen in a while. I do use the blue light filter on the phone. It does give me a bit more headache than not using it. The experience is more pleasurable though overall when I am using it.

              My eyes just hate the blue/deep white light. My eyes fight it.

              Wrightpt1

              Wrightpt1 Im considering a 5k monitor. Ohh the price tho.

              I was considering a 4/5k monitor for myself but I think the issue is that under Windows/Linux the scaling isn't as good, and it's hard to use a 4k monitor at 100% scaling.

              I'm thinking of a Dell UP3017 (30" 2560x1600 IPS) for myself after I sort some stuff out. On a plus side it might also be RGB backlit, so not blue LED.

                JTL great input. I have seen an LG and a Dell.

                It has been a while but from what I remember for me the white light from an LG monitor is diff ftom the white light from a quantum monitor. But the 5k may be worth it in my case

                  Wrightpt1 I do have some recomandations based on what you described.

                  First I recomend installing F.lux and setting it up to 4100k during the day on all your devices(desktop, laptop).

                  Second and most importantly I think you should either use scaling like I use or you could increase all fonts by 25%. I use scaling in Windows at 125% combined with increasing font in all my editor software I use. I do have better than 20/20 vision and I do this to avoid my eyes getting tired after 8 hours of work. Also my screen is flicker free(Dell u2414h) and I am also using paper mode from the monitor which reduces blue light further.

                  Another very important tool that I use is EyeLeo. It's a small software tool that reminds you to make different exercises for the eyes from time to time. I use this to get rid of sand in the eye sensation from staring into the screen too long without blinking. Us humans do not blink regulary when using computer screens for some reason.

                  And even if you do not get a migraine from PWM when using your S8 in the dark that doesn't mean your eyes are not negatively affected by this type of flicker. You should reduce the time you spend reading on the S8 in dark environments because the eyes will be strained from all the microcontractions.

                  There was a spambot posting phone advertisements in several threads, their posts have been removed.

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