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I’ve struggled to use Samsung displays for years, but the Galaxy S27 may finally fix that; here’s why

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I’ve struggled to use Samsung displays for years, but the Galaxy S27 may finally fix that; here’s why

The Samsung Galaxy S27 display may be getting a DC-dimming upgrade, and that will be a huge boon for people sensitive to PWM dimming.

Ever since the Galaxy Z Fold 4, I’ve had difficulty using Samsung phones for long periods of time. The problem, for me, is the company’s use of low-frequency PWM dimming, which causes me horrid headaches, followed by eye pain, and eventually nausea. It’s not fun, and I’ve learned through resources like r/PWM_Sensitive and LEDStrain.org that I’m not alone.

Thankfully, Samsung’s Galaxy S27‘s display may give users the option to use DC dimming, according to one rumor (via GSMArena). Motorola has offered DC dimming as an option on all its OLED-equipped phones for years, and it’ll be great to see Samsung do the same. DC dimming is a more traditional dimming method used by lightbulbs and displays since the dawn of each technology, and is often considered more comfortable than PWM dimming by advocacy groups.

Sure enough, as I learned more about PWM dimming in my personal struggle over the years, phones that use DC dimming are often the most comfortable for me. The only other alternative is to use much higher frequency PWM dimming; 2,000Hz or higher, while the $1,300 Galaxy S26 Ultra only uses 480Hz.

Samsung has long prioritized PWM dimming on its displays for several reasons. First, PWM dimming offers better display quality in low-light situations, as DC-dimmed OLEDs can sometimes exhibit “mura” at low brightness levels, which means individual pixels don’t dim at the same rate.


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