Samsung plans to introduce DC dimming to the upcoming Galaxy S27 Pro and Galaxy S27 Ultra smartphones next year, replacing traditional pulse-width modulation to curb eye strain and visual fatigue for users. The high-end devices will also adopt advanced M16 display panels alongside the returning Privacy Display feature.
DC Dimming Replaces Traditional Screen Flicker on Galaxy S27 Ultra
Samsung is preparing a significant display overhaul for its upcoming flagship lineup, with industry reports indicating that the Galaxy S27 Pro and Galaxy S27 Ultra will be picking up DC dimming technology next year. Historically, Samsung flagships have relied entirely on Pulse-Width Modulation to adjust screen brightness. This traditional method flickers the display rapidly on and off at high frequencies to simulate different brightness levels. While largely imperceptible to many users, low-frequency PWM—often capping at a maximum of 480 Hz on mainstream devices—can trigger severe visual fatigue, headaches, and nausea for sensitive individuals, particularly during late-night reading sessions in dark rooms.
By contrast, DC dimming works by lowering the actual electrical current going to the pixels, producing a smooth reduction in brightness without creating invisible strobe effects. Because operating OLED and AMOLED panels at very low voltages can distort color frequencies and lead to muddy output, manufacturers often utilize a hybrid approach. This setup pairs DC dimming for higher brightness tiers with PWM dimming at lower levels, or employs a DC-like configuration where pixels oscillate between high and low states rather than turning off completely. Reports indicate Samsung is collaborating with safety firms to fine-tune its built-in Eye Comfort Shield software alongside this hardware shift.
M16 Display Panels Split the Galaxy S27 Lineup by Tier
The move toward improved visual comfort coincides with a generation split across Samsung’s upcoming device tiers. While the standard Galaxy S27 and Galaxy S27 Plus will retain M14+ display panels, the premium Galaxy S27 Pro and Galaxy S27 Ultra will get Samsung’s latest M16 OLED material formula. Beyond bringing DC dimming support to Samsung’s top-tier phones for the first time, the M16 panels offer greater power efficiency, higher peak brightness, and richer color output.
Privacy Display Adjustments Target Earlier User Complaints
Alongside panel upgrades and dimming changes, Samsung is working to refine its Privacy Display feature. Originally introduced on the Galaxy S26 Ultra, the privacy option drew criticism from users who experienced eye strain, headaches, and nausea even when the feature remained switched off. Industry observers note that Samsung is retaining the feature on the S27 Pro and S27 Ultra while working on fixes for the resolution drops and washed-out colors that accompanied its initial rollout.
