Regarding my tinitus symptons on the Sony A9s i concluded this were not from the tv but some esomeprazol med i started to take on that time. That was a coincidence and it is not related!

10 months later

raven83

fyi, same PWM TV models can be eye-strain or not. On my xg9505 setting BFI cause eye-strain, also reducing backlight to lowest values results in more intense and not sine-wave PWM and eye-strain also. The problem is you need devices to measure screens and state logic of comfortable ones

      raven83

      yes

      I tested my xg9505 a lot, safe brightness level is 35 + autobrightness ON, ~737hz PWM and sine-wave PWM

      xg9505

      also you can try lg qned90, no PWM at all ( shop test )

      qned90

          simplex I bought one right now…. many thank

          let me see if can work with this product.

          its good to take to the shops and test tvs for flicker etc

          on your tv the best pwm value is the 737hz? Also what is sine-wave? is the up and down of the frequency?

          Thank you

              raven83 Also what is sine-wave?

              here is lg qned80 series TV. Look at PWM, very square-view-form, when I measure TVs in shop on the 3 january '24, I found only varyaties of this form. If you compare it to sony ( which is no-eye-strain for me ) you will find they use different types of PWM waveform. Some users reported, they can use samsung s10 (which have sine-wave PWM) and cannot use samsung s20 (or higher, dont remember) - the PWM form is changed to square-view.

              I measured different monitors and TVs, and can say the PWM form is key. All "old and safe" PWM screens I measured, have sine ( smooth, curved ) view

                  simplex many thanks for your explanation and help! Once the opple master arrive will try that on the A95K qd oled and share my findings! Thank you

                    11 days later

                    simplex

                    My opple lightmaster iv arrived…

                    Started test… sony A95K

                    I put it about 5 cm 10 cm of the tv. With the vertical box below. Testing on white background.

                    The worst result was later when the abl of the tv started….so abl adds flicker….

                    When we test with normal.content moving we get high risk and low risk…..cycling….

                    Am i testing this right?

                        raven83

                        Results without Abl = automatic brightness limiter…. So thi abl are fucking this up! I updated firmware when i bough the tv that was a mistake!

                          raven83 Started test… sony A95K

                          1. On my xg9505, few things have influence on PWM ( increase modulation depth in %)
                            • Light sensor = OFF
                            • Sharpness -> Clearness ( BlackFrameInsertion ) = Min
                            • Local screen dimming = OFF
                            • X-Tended Dynamic Range = OFF
                          2. To get proper results, place Opple4 very close ( to reduce reflections etc ) in dark room ( no more clocks shining, no more lights in room ), then I often start video in YT called "A Screen Of Pure White For 10 Hours" and start to measure
                          3. idk what for A95K, but sony's TV should gave safe PWM at ~730hz, try to find settings

                          My safe settings is I wrote above + light sensor ON + 25 brightness level in dark room.

                          I can post modulation % and avg brightness level which is good for eyes of all viewers

                              simplex

                              Ok but if you test with normal tv content playing you get high risk for sure….i got that….

                              So i dont think opple is giving any help because in normal content the choices we made with white background does not apply…

                              I taugh we calibrate on white but then we got the same values in normal content….each time a color changes we have a diferent value lol

                                  raven83 we calibrate on white

                                  coz Opple4 borned to work in white background only ;D

                                  Opple3 dont have this restrictions

                                      raven83 you have opple 3?

                                      nope, LM4 is enough for my needs. All you need to measure devices at same conditions

                                        dev