iPhone 17: “Display Pulse Smoothing” lets you disable PWM dimming
iPhone 17: “Display Pulse Smoothing” lets you disable PWM dimming Apple’s iPhone 17 series adds a new accessibility option called Display Pulse Smoothing that lets users toggle pulse-width modulation (PWM) dimming on or off. It’s found in Settings > Accessibility > Display & Text Size. What this does Disable PWM: Turns off PWM-based dimming so the OLED display dims without the rapid on/off pulses that can cause flicker. Who benefits: People sensitive to screen flicker — who experience eye strain, headaches, or discomfort with PWM — may see a smoother image at low brightness. Trade-offs: Apple notes disabling PWM may affect low-brightness display performance under certain conditions. Where to find it Open Settings > Accessibility > Display & Text Size and enable or disable Display Pulse Smoothing. Official note “Disables…