Monitor Ghosting Test — Pixel Response & Overshoot
Evaluate physical panel pixel response times (GtG), overdrive overshoot, and motion persistence across light, medium, and dark backgrounds.
A blurry dark trail trailing behind the moving block indicating slow pixel transition response time (GtG).
A bright, inverse halo or glowing corona trailing the object caused by aggressive monitor overdrive voltage.
Sluggish pixel transitions on the bottom dark lane, commonly observed on high-contrast VA panel types.
How to Interpret the Ghosting Test
Track the moving test target with your eyes as it sweeps across the 3 horizontal background lanes. Observe the trailing edge behind the object:
- Clean sharp edges: Fast pixel transition times with well-tuned overdrive.
- Dark blurry trailing: Slow pixel response time (liquid crystals lagging behind frame updates).
- Bright glowing coronas: Excessive monitor overdrive voltage causing inverse overshoot.
Frequently Asked Questions
What is monitor ghosting?
Monitor ghosting is visual trailing left behind moving objects on screen. It occurs when physical liquid crystals (in IPS or VA LCD panels) take longer to transition from one shade of gray to another (GtG response time) than the duration of an active refresh cycle.
What is inverse ghosting or pixel overshoot?
Inverse ghosting appears as a bright, glowing halo behind moving objects. It happens when monitor response time overdrive voltage is turned up too aggressively, causing liquid crystal molecules to overshoot their target color position.
How do I fix ghosting on my gaming monitor?
Open your monitor built-in OSD menu and locate Response Time / TraceFree / Overdrive settings. Test switching between "Normal", "Fast", and "Extreme". The optimal setting eliminates dark trailing without causing inverse overshoot halos.
Why does ghosting look worse on dark backgrounds (VA panels)?
VA panels excel at deep native contrast ratios (3000:1+), but their liquid crystal transitions from deep black to dark gray (0% to 20% luminance) are physically slower than transitions between bright tones, leading to dark-level smearing.
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