Galaxy S27 Pro and Ultra tipped to add DC dimming tech
Samsung‘s impending Galaxy S27 lineup will reportedly introduce DC dimming to its premium models, addressing screen flicker issues that cause eye strain for sensitive users.
Industry leaks indicate that Samsung Display has commenced component manufacturing for the S27 series.
While previous device generations, including the current Galaxy S26 Ultra, relied exclusively on pulse-width modulation to control display brightness, emerging sources suggest the forthcoming S27 Pro and S27 Ultra will finally integrate DC dimming.
Pulse-width modulation alters perceived brightness by rapidly turning the light source on and off. While effective for power management, contrast ratios and colour consistency, this high-frequency flickering can induce visual fatigue and headaches.
DC dimming circumvents the flicker entirely by physically altering the voltage supplied to the light-emitting diodes.
Implementing this hardware-level voltage adjustment on modern screens equipped with variable refresh rates remains technically demanding.
Competing manufacturers who offer DC dimming often employ a hybrid system, utilising voltage adjustments at medium to high brightness levels and reverting to pulse-width modulation in extreme low-light conditions to maintain colour accuracy
Premium panels and segmented features
The introduction of DC dimming appears to be part of a broader strategy to differentiate Samsung’s top-tier smartphones from its standard offerings. Market insiders claim the S27 Pro and S27 Ultra will feature Samsung’s latest M16 OLED materials, promising superior brightness and efficiency.
Conversely, the base S27 and S27 Plus models are slated to use older M14+ display components, widening the technological gap between the tiers.
Samsung is also expected to retain the hardware-based Privacy Display feature introduced on the S26 Ultra for its new premium tier. The intricate engineering required for this privacy tool represents a significant financial investment, making its continuation notable alongside the expensive transition to flicker-free screens.
