This test compares display motion blur caused MPRT (Moving Picture Response Time) and GtG (Grey-to-Grey) on sample-and-hold displays.

Observe the edge sharpness difference between the top and bottom halves of the moving bar! Fast pixel transitions will amplify the edge-sharpness difference between the top and bottom half. Slow pixel transitions will reduce the difference betwen top and bottom.

GtG (pixel response time) is not the same thing as MPRT (pixel visibility time). Persistence (MPRT) is pixel visibility time. See Explanation Of GtG versus MPRT.

NOTE: This test filters most of GtG from MPRT persistence via spatial strobing (eye-tracking across thin vertical lines), the same method used by TestUFO: Eye Tracking and TestUFO: Persistence of Vision optical illusions invented by Blur Busters Founder Mark Rejhon. That said, LCD overdrive algorithms may behave differently for the top and bottom halves, and ghosting effects may be different for different colors. However, the bottom half should be clearer on most LCD and OLED displays. Changing overdrive and gamma may affect leading and trailing edge blur. This test is for sample-and-hold displays, and will look different with PWM dimming backlights. If using motion blur reduction (ULMB), temporarily turn that display feature off for this GtG versus MPRT demo.