Screen Flicker: A Hidden Health Hazard and the Calm Tech Certification

The Calm Tech Institute highlights the often-overlooked problem of screen flicker, prevalent in devices using Pulse Width Modulation (PWM) dimming. Low-frequency flicker (below 1kHz), common in LEDs and OLEDs, can cause visual discomfort and potential health issues. Research shows Constant Current Reduction (CCR) dimming offers a superior, flicker-free alternative, improving visual comfort significantly. Calm Tech certification emphasizes flicker-free standards, and Daylight Computer's certified computer, which eliminated PWM in favor of DC dimming, sold out, demonstrating the market's growing demand for health-conscious technology.