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Original topic:

S20 PWM dimming

(Topic created on: 16-01-2021 01:25 PM)
Tachisto
First Poster
Options
Galaxy S20 Series

I really think it is the time for samsung at least to give consumer a choice to choose DC dimming

PWM dimming is pretty uncomfortable to some people, including me.

8 REPLIES 8
Visentinel
First Poster
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Galaxy S20 Series

second this

 

I just got an s20 ultimate and noticed everytime I use the phone in my hand longer than 10 minutes or so my eyes start watering and have trouble focusing. 

 

I have never had this problem before and found out that some phones with amoled screens give the option to use DC dimming because some people are sensitive to the pwm flicker.

 

I can actually see the flicker by shaking the phone in front of me... this is annoying.

EddieLorYongQi
Journeyman
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Galaxy S20 Series

Bro, I am having this problem also. Having I frontal headaches which becomes a migraine where one side of my head hurts. Then I get a little dizzy and giddy and have trouble focusing. So how are you? Do you recommend me to return the phone? I am also using Samsung S20 in Singapore.

EddieLorYongQi
Journeyman
Options
Galaxy S20 Series

I can see some flicker when I dont look at the Samsung S20 for a while and take a close peek at it, the PWM! Omg, How / what should I do at this stage man? I needa convince my parents about this asap!

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snap80
Journeyman
Options
Galaxy S20 Series

samsung doesn't even deign to give an answer it's very serious means they have a serious problem and can't confirm it

vpankaj97
First Poster
Options
Galaxy S20 Series

I have a samsung s20+ and a50...with amoled...and pwm is used.

 

What is different though is the point at which pwm is used to decrease brightness.

 

35% is the cutoff....so above that...we are safe from the world of pain.

 

But you know what cutoff is for s20 plus???

 

100% it is full throttle from the highest to ths lowest.

 

Even iphones have cutoff around 50%.

 

Why cant they just improve the cutoff for pwm or is color accuracy more important than our eyes?

 

Things as may be...before dc dimming, even if samsung just looks at the other phones it makes...we'll be well mentally.

 

Just for ref.

Both phones at 100%

IMG_20201026_163521_1.jpg

Both at 50%

IMG_20201026_163549.jpg

Both at 35%

IMG_20201026_163559_1.jpg

and last: 0%

IMG_20201026_163611.jpg

 I mean...cummon Sammy... I'm dying out here.

 

AZE
Journeyman
Options
Galaxy S20 Series

*** Important too all, who have Problem wiht PWM like me (Eye strain, Headacke) ***

Hi

 

Xiaomi smartphone manufacturer has taken the problem and noticed the gap in the market, so Xiaomi has launched newly  high-end smartphones without PWM:

 

Xiaomi Mi 10T - Series

 

See link: Androidauthority.

https://www.androidauthority.com/xiaomi-mi-10t-series-lcd-oled-1170348/

 

 

** We hope that SAMSUNG will also realize the problem at some point and do something about it. 

0 Likes
JRUK
Apprentice
Options
Galaxy S20 Series

I cannot use any OLED iphone since the launch of the X and Samsung supply the displays. Looking at an OLED phone with PWM and I can feel the muscles in my eyes start to ache which results in a migraine. The new iphone 12 models all make my eyes water and give me a multiple day headache. I've been unable to upgrade to any flagship phone for over 4yrs as I am clearly PWM sensitive.

 

I've read on notebookcheck that the S20 FE 5G stops flickering above 30% brightness and maintains 120hz which is still not a high rate but a sign Samsung are aware of the issue.

 

Question is = have they fixed/addressed this on the new S21 range?

amandacarman
First Poster
Options
Galaxy S20 Series

Definitely hasn't been addressed in the S21 range. Currently suffering with the S21 Ultra. I didn't realize it was the phone and spent the last month going to every doctor to find out what is wrong with me. I get very severe tension headaches from very little phone use, and prolonged use leaves me crippled with a severe migraine that meds can't kick. I wish I knew the phone was the issue sooner since Samsung only offers a 14-day return period. Super disappointed since I saved up to buy this model for the amazing camera/video capabilities and now I cannot even enjoy it.

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