MagnuM Are there other types of flicker besides PWM that could be a factor? If there is, why are these other forms of flicker not as problematic on a CCFL-backlit monitor?

DC ripple exists on probably all "flicker-free" monitors.
Pixel inversion is another type of flicker that all LCDs seem to have.
Tearing basically is a form of flicker, maybe harmless, but who knows.
Small power or status LEDs can flicker - don't underestimate this.

I recently found this old article which is pretty interesting: http://www.conradbiologic.com/articles/SubliminalFlickerI.html
Part II covers fluorescents.
It seems he is/was doing research on flicker.

      KM "An extreme sensitivity to subliminal flicker is probably due to prior neurological damage."

      This passage was most interesting to me. I know some people here have talked about having issues with head injuries before, and their issues started afterwards. Some symptoms of post-concussion syndrome also involve light sensitivity. I however have not had any history of head injuries.

      But I'm starting to wonder about side effects of certain drugs (i.e. pharmaceuticals) like anti-depressants or even antibiotics (e.g. fluoroquinolones). God knows what some of these drugs might be doing to our brains...

        MagnuM

        I thought this too @ all LED = bad for me but it's not quite the case it's more 99% is bad

        PSP, DS, and a single LED backlit 2015 Bravia TV are perfectly fine for me. I really wish I knew what made these fine and others not. I'd assume if I had the money and time I could find many more LED lit things that don't destroy my eyes and brain. I also find OLED to be perfectly fine as long as there's no visible to the eye PWM and it's running off something that doesn't cause me symptoms (like an OLED phone using lollipop is always fine for example as was the original PS Vita) never tried an OLED TV though and i hear they work differently. White backlight OLED + filters on top or is it only LG that does this? Regardless I plan on trying one when I can

        LEDs and screens aren't created equally so it might be that the switch you have with the specific panel it has just happens to work perfectly for your eyes. It's a shame you can't see the make and model of the screen without taking it apart.

        • KM replied to this.
        • KM likes this.

            KM The company JOLED is supposed to be manufacturing RGB OLED monitors this year. 3 monitors are coming out and they are 10 bit. Maybe they will cause no pain.

              KM

              The problem with smart tv's is like everything else they're running on android or webos etc.

              Having the TV run off an OS like this is introducing another factor in to whether a TV is okay for us. Android TVs past lollipop are going to cause me strain because of the OS, I imagine webos is the same. We'll probably never know if the TV was fine but the OS was causing issues.

              If only dumb TV's were still a thing on anything but the cheapest TVs

              • KM likes this.
                2 years later

                So the latest switch software update now gives me eye strain. It was perfect before. I think they are changing things due to the new switch pro coming out. Apparently that will be 4k and use Nvidia upscaling AI technology. Kind of sucks. Anyone else having issues?

                  9 months later

                  thorpee i got same condition. After update april or mei 2020, my switch give me eye strain. do you find any solution?

                      This all makes me concerned for the Steamdeck coming out soon. I have a preorder in…

                        Clokwork i am afraid steam deck can cause eye strain because use gpu amd. Since i always get eye strain when use amd gpu. RX 570 8GB power dragon, ps4,ps4 pro,ps5,xbox series s, give me eye strain too and they all use amd gpu too

                            ludwig The xbox and playstation use AMD GPUs as well though I believe. No issues there with their respective panels (UST Projector and an older 2k LG LCD TV)

                              19 days later

                              ludwig

                              Sorry for late reply. No I have no solution. I've tried docking it to all kinds of TVs. Even a CRT monitor. It's something the switch is doing. I can play Mario 64 ok from the game that has sunshine and galaxy in it. So that 64 emulator they are using must ignore whatever they changed. I will try the online expansion to see if I can play all the 64 titles. May just have to use it to play old 64 titles, lol.

                              If I had to guess they've played with the dithering or sharpening to make it look better for the new OLED switch. It must share the same software.

                                dev