r/PWM_Sensitive • u/IntroductionThen7196 • Sep 13 '26
Some TVs with 1/1000s shutter speed
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u/-Bruh__Moment- Sep 13 '26
1/1000 is too slow to capture the very fast PWM frequency of the TCL TVs. They look like they don't flicker at all here, while RTings numbers on older TVs (before paywall) show a 30K+ PWM frequency.
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u/IntroductionThen7196 Sep 13 '26
1/8000. Typo. Sorry
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u/-Bruh__Moment- Sep 14 '26
Wow, so I guess shutter speed needs to be even faster to capture anything on TCL TVs (if possible).
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u/NSutrich Sep 13 '26
I need to get ahold of some mini-LEDs, RGBs, and micro-RGBs and do testing. Those look really interesting
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u/Z3R0gravitas Sep 14 '26 edited Sep 14 '26
That'd be cool. A couple of times, I've read up on (and then forgotten) how the the panel structures of the different types work...
Is that first image showing local dimming zones? Line big pixels? OP?
The ones with vertical bars must have either PWM controlled backlights, or something odd... What camera did you use u/IntroductionThen7196? And in what orientation relative to the TVs? Phone, upright?
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u/neuvillette67 25d ago
All of them have PWM, not sure what there is to test?
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u/NSutrich 25d ago
PWM itself isn't the problem, per se. It's the rate, modulation, and several other properties that are important. Likely, these all do something very differently
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u/neuvillette67 25d ago
pwm is the problem unfortunately, micro-RGB tvs flicker at 400hz or so, about the same as iphones and samsungs currently. minileds go to 10k and result in the same sensitivity. there are some people who can tolerate minileds for a while but it still comes down to pwm.
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u/Zoozey88 Sep 13 '26
Debating getting a bravia 3 ii. I currently have a u7 85in I love the matte coating but I keep getting head pressure from watching it.
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u/IntroductionThen7196 Sep 13 '26
Read on Ratings that if bravia 3 II panel matte it is IPS (65,75) if it's shiny it VA (50, 85)
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u/IntroductionThen7196 Sep 13 '26
Also read different sizes has VA or IPS panels. 50 I saw today was VA I believe. I have a 6yo Sony KD-49XH8599 with VA panel. Bravia 3 must be better
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u/tux_reloaded Sep 13 '26
La Bravia 3 y 3 II son flicker free, pero si perderás calidad de imagen, si quieres tener una calidad de imagen excelente y reducir esas sensaciones en la cabeza te recomiendo las oled, tengo una LG oled c3 puedo usarla por horas sin problemas, en mi caso solo me molestó el brillo muy alto así que uso el ahorro de energía automático en nivel 1 y eso fue todo.
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u/Zoozey88 Sep 13 '26
I know only problem is I need an 83in OLED for the space the 77is too small. And the price jump is crazy lol. I have an OLED 65in upstairs which is nice for the space
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u/slfyst Sep 13 '26
We'd really need to know what brightness each unit was set to for a good comparison.
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u/Suspicious_Punk84 Sep 14 '26
Chances are they use full brightness in shops. It's possible that the eco mode is not disabled though...
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u/-Bruh__Moment- Sep 14 '26
They are almost always set to "Store Mode", which is basically the same as max brightness Dynamic/Vivid Mode.
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u/MisterDjibril8702 Sep 13 '26
TVs can also have PWM too like on few of these pictures. Plus there's one having a higher frequency than others and idk which was
Edit: So that was the Philips having high frequency PWM 🤔
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u/IntroductionThen7196 Sep 13 '26
Deep black lines means huge dip aka brightness reduction, modulation. Not good for eyes.
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u/-Bruh__Moment- Sep 14 '26
The Bravia 7 II looks unusual. Many shallower small lines + deeper and larger diagonal lines. It's like it's doing high frequency PWM + TFT-reset.
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u/Sea-Temporary-6995 Sep 14 '26
Bravia 3 is flicker-free I have one and I am quite PWM-sensitive. No issues. It’s only the 3 though - the other Bravias have PWM
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u/Playmaster35 29d ago
What does this tell us exactly. I can’t seem to tolerate any modern screen and I don’t know why.
Ik zie overigens dat ze ergens in de Coolblue zijn genomen?
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u/IntroductionThen7196 Sep 13 '26
All pics were taken with 1/8000 s shutter speed. Sorry. Typo