PWM Flicker Lab
Photosensitive epilepsy warning: flickering patterns can trigger seizures. Stop immediately if you feel unwell. Do not stare at strobing fills for long periods.
Simulates fullscreen brightness toggling near a chosen frequency to help visualize low-frequency modulation on dimmed panels. Combine with brightness sliders on your GPU or laptop for qualitative comparisons only — ambient light dominates perception.
How to use
- Read epilepsy guidance before tapping Start flicker engine.
- Lower brightness at the OS/driver level to reproduce real-world modulation stacks.
- Pause instantly if dizziness appears.
FAQ
Does this emulate hardware PWM circuits?
Browser-side toggling illustrates perception only; waveform shaping inside panel ASICs differs.
Introduction
PWM Flicker Lab toggles extremes at user-defined Hz × duty, helping quantify comfort bands when laptop vendors mix PWM + DC hybrid dimming ladders.