Channel 03
Motion
Refresh, persistence, sample-and-hold, and why fast panels can still look wrong.
Every guide on this channel
Registration 03 / 06-
The Frame Held Too Long
A display can refresh at 120 Hz and still produce motion blur your eye cannot ignore. The physics behind that paradox starts with how long each pixel stays lit.
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How Variable Refresh Actually Synchronises
The frame isn't pushed to the panel — it's pulled, and the panel holds its breath until the source is ready.
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Blinking the Backlight: What BFI Costs You
Interrupting the backlight sharpens motion — and immediately punches a hole in every other metric you care about.
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Pushed Too Hard: Overdrive Artefacts Explained
LCD overdrive speeds up pixel transitions — push the voltage too far and you create a ghost in front of the object instead of behind it.
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Four Motion Problems That Look Like One
Motion on a display always looks wrong in roughly the same way — smeared, stuttery, or soft — but the cause determines the fix, and the four most common causes have nothing to do with each other.