Motion Lab
Analyze refresh behavior, motion clarity, ghosting and frame pacing directly in your browser.
Measure animation frame intervals, estimated refresh rate, micro-stutter, and frame drops.
Refresh Rate Test
Estimate your display’s effective refresh rate and frame interval stability using high-precision browser timing.
FPS Comparison
Compare moving objects simultaneously rendered at 30 FPS, 60 FPS, 120 FPS, and higher refresh rates.
Frame-Pacing Test
Render continuous motion while recording micro-stutter, frame-time variance, and delivery jitter.
Observed Late-Frame & Drop Detection
Detect missed animation frames, compositing stalls, and severe render hitches in real time.
Inspect liquid crystal transition speeds, inverse ghosting halos, and color smearing.
Ghosting Test
Inspect panel pixel transition lag and trailing artifacts behind high-contrast moving objects.
Inverse Ghosting & Overshoot Test
Identify bright or dark inverse halos (coronas) caused by aggressive monitor overdrive settings.
Color Ghosting Test
Expose asymmetric subpixel response times across saturated colors and dark VA panel smearing.
Response-Time Transition Test
Visually compare slow vs fast pixel transitions across diverse luminance steps (0–255, 64–192, 32–128).
Assess eye-tracking sample-and-hold blur, visual persistence (MPRT), and pursuit camera patterns.
Motion Blur Test
Compare visual clarity of text, fine lines, and geometric patterns at various motion velocities.
Visual MPRT & Persistence Test
Inspect sample-and-hold display persistence and moving picture response time characteristics.
Pursuit-Camera Pattern
Standardized motion pattern with tracking ticks and temporal alignment crosshairs for camera pursuit photography.
Educational interactive simulations demonstrating stutter, screen tearing, and VRR dynamics.
Stutter Demonstration
Educational demonstration showing how irregular frame pacing and micro-stutter disrupt motion smoothness.
Screen Tearing Simulation & Educational Demo
Interactive educational simulation explaining screen tearing, buffer flips, and VSync mechanics.
VRR Behavior Visualization
Demonstrates variable refresh rate dynamics across 48–120 FPS, 60–144 FPS, and fluctuating framerates.
Accuracy and honest reporting are foundational to ScreenCheck. JavaScript running in a web sandbox cannot directly probe your monitor’s physical electronics, EDID timing registers, or optical pixel response curves. All timing and refresh rate figures in Motion Lab represent measured browser animation compositing behavior.