In real AV installs, flicker is usually a refresh rate vs camera shutter mismatch issue, not a content problem.

Typical requirements:

  • ≥3840Hz → minimum for camera-ready / broadcast LED walls

  • 7680Hz → sports, concerts, and touring rental setups

In r/CommercialAV-style discussions, low refresh LED screens may look fine to the eye but show rolling bands or scan lines on phones and broadcast cameras due to rolling shutter effects.

In practice, if it flickers on camera, it’s almost always a driver IC / refresh rate limitation, not the video signal itself.