Question 1

What causes ghosting on a monitor?

Accepted Answer

Ghosting is caused by a pixel's response time being slower than the refresh rate — the previous frame's image partially persists into the next frame. IPS panels typically show more ghosting than TN panels at equivalent refresh rates. Overdrive settings can reduce ghosting but if set too high cause inverse ghosting (corona/halo effect). This test helps you find the optimal overdrive setting for your specific panel.

Question 2

How do I fix ghosting on my monitor?

Accepted Answer

First, adjust overdrive settings in your monitor's OSD (on-screen display) — most monitors have low/medium/high options. Test each level with this tool. Second, verify you're running at the monitor's rated refresh rate (check display settings). Third, ensure your GPU cable supports the bandwidth for your resolution/refresh rate. If ghosting persists at all overdrive settings, the panel may have a hardware response time limitation.

Question 3

Is ghosting the same as motion blur?

Accepted Answer

No. Ghosting is pixel-level persistence creating faint trailing images. Motion blur is a perceptual effect where the eye tracks moving objects and the display can't update fast enough — present even with zero ghosting. Higher refresh rates reduce motion blur significantly (240Hz shows 4x less blur than 60Hz). ULMB (ultra-low motion blur) backlight strobing modes eliminate motion blur at the cost of brightness. This test evaluates ghosting specifically — motion blur requires real-time content testing.

Motion Blur & Ghosting Test

Recommended Testing Equipment

Recommended: LG 32GN650-B UltraGear (165Hz QHD)

Recommended: LG 32GN650-B UltraGear (32-inch QHD)