Some displays use phosphor/pixels that responds more slowly in some color primaries (R, G, B).

This can be noticeable on high-performance displays, especially when backlight modulation is performed on LEDs with slower phosphors (e.g. local dimming, motion blur reduction strobing, BFI, etc).

For example, LED backlights utilizing KSF phosphor will often have red ghosting effects. In addition, some MiniLED local dimming backlights will create a cyan/green ghosting effect for bright whites on dark backgrounds. Faster phosphors such as quantum dots will be generally immune to this color ghosting effect.

These test patterns are intentionally monochrome to make it easier for eyes to see color ghosting effects. Try these are preconfigured tests:

• Default Three Row Set (KSF)
• Dense Lines Only (KSF)
• Sparse Lines Only (KSF)
• 2 Rows Starburst (KSF)
• Large Bars (MiniLED)
• Zig Zag Cubes (MiniLED)