SDF user since 2001. BSD user since 1998.

Just here for the tech discussion.

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Cake day: June 11th, 2023

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  • It’s not the blue emitting light that causes eyestrain on OLEDs, it’s the low frequency pwm used to control brightness. Basically all the pixels turn on and off a few hundred times a second, not slow enough for your brain to consciously notice it, but fast enough for your eyes to react to what is in effect a strobelight right in front of your face. That is how dimming works on an OLED.

    You end up with devices that still cause headaches and dizziness because they flicker in this manner, but are “eyesafe certified” because they filter out the blue light right before bed.