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
Bought a sony A9s oled tv wish me luck š
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
11 days later
My opple lightmaster iv arrivedā¦
Started testā¦ 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 startedā¦.so abl adds flickerā¦.
When we test with normal.content moving we get high risk and low riskā¦..cyclingā¦.
Am i testing this right?
- Edited
raven83 Started testā¦ sony A95K
- 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
- 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
- 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
- Edited
Here is my safe option
Ok but if you test with normal tv content playing you get high risk for sureā¦.i got thatā¦.
So i dont think opple is giving any help because in normal content the choices we made with white background does not applyā¦
I taugh we calibrate on white but then we got the same values in normal contentā¦.each time a color changes we have a diferent value lol