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Refresh & MotionMotion Persistence

Motion Blur Test — Perceived Motion Clarity

Evaluate display sample-and-hold persistence, retinal tracking blur, and text legibility at high scrolling speeds.

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MOTION CLARITY
Pattern:
Velocity:

Sample-and-Hold vs Response Time Blur

Unlike pixel ghosting (which is caused by slow physical liquid crystals), motion blur is primarily a physiological phenomenon caused by smooth pursuit eye tracking over discrete, static display frames.

Frequently Asked Questions

What causes motion blur on LCD and OLED monitors?

Most perceived motion blur on modern flat panels is caused by sample-and-hold display mechanics. When a static frame is displayed for a full refresh cycle (e.g. 16.67ms at 60Hz), your eyes continuously track moving objects across the screen, smearing the static frame across your retina.

How do high refresh rates reduce motion blur?

At 144Hz, frames are held for only 6.94ms; at 240Hz, just 4.17ms. Shorter frame persistence reduces retinal tracking smear, resulting in substantially sharper moving images.

What is Backlight Strobing (ULMB / DyAc)?

Backlight strobing pulses the monitor backlight only during the brief instant when liquid crystals finish transitioning, simulating the instantaneous pulse of a CRT and eliminating sample-and-hold blur.