OLED Test

Inspect OLED motion and persistent screen marks

This OLED motion blur test online offers separate patterns for stationary marks, moving edges, text and real video. Use it to describe a visible symptom and compare settings. The browser does not know whether your panel is OLED or LCD, and a persistent mark still needs confirmation outside the page. Choose the pattern that matches the question instead of treating every visual artifact as burn-in.

How to use the tool

1. For a stationary mark, select Color cycle and briefly compare the same area on several colors. Use the static Checkerboard as a different contrast background; keep checks short.
2. For motion, choose Moving blocks, Scrolling text or Gradient sweep. Start at a moderate speed, follow the moving feature with your eyes and then watch from a fixed point.
3. Use the selected pattern’s speed controls to repeat the same comparison at a second speed. Stop before choosing a different pattern, and use fullscreen to inspect a larger area.
4. Try Scenic motion for native playback of the 3840 × 2160 video at 60 fps, approximately 62 seconds long with audio. Compare it with the generated patterns, because video decoding and canvas animation involve different work.

Match the pattern to the observation

Color cycling is useful for a shape that seems fixed on the screen: a logo outline, taskbar shadow or uneven patch. If it appears in the same physical location across multiple colors, record it and compare another input or the display’s own diagnostic. A mark that later disappears may be temporary image retention. A browser screenshot cannot capture a defect that exists only on the panel.

Moving blocks provide high-contrast edges; scrolling text makes readability changes obvious; the panning gradient provides a slower moving tonal field. Their adjustable speeds let you keep the stimulus similar while comparing a monitor setting. A visible trail can change with pixel transitions or processing, while perceived blur can also come from tracking a sample-and-hold image with your eyes.

The tearing check sweeps vertical bars quickly. A broken-looking edge is an observation of this browser presentation path, not a direct test of a graphics card’s scanout. Explosion stress uses simultaneous particle bursts to place more work on rendering. If only the stress scene stutters, investigate workload before deciding the panel has poor motion handling.

Use timed patterns with a clear purpose

The timed screen test offers color and line patterns with selectable duration and movement options. Labels such as 4K and 8K describe the selected generated test mode; they do not establish the panel’s physical resolution. Use the shortest duration needed to observe a symptom and stop once you have recorded it.

The scenic option uses a single 3840 × 2160 file at 60 fps, approximately 62 seconds long with audio. Native video controls and a chosen run time let you compare the same clip. Longer runs loop the same source rather than downloading a higher-quality alternative. A 4K video can play on a lower-resolution display, so source size should not be confused with screen size. If it buffers or fails, check the connection and compare another browser.

Make a fair motion comparison

Keep speed, window size, viewing distance and brightness consistent. Change one display or browser setting at a time. On Windows, inspect Settings → System → Display → Advanced display for the chosen monitor’s refresh mode. On supported Macs, inspect System Settings → Displays → Refresh Rate. Repeat the same moving pattern after a change.

Reduced-motion preferences can make animated checks start paused. Press Start or Play when you choose to run them, then use Stop when finished. These are inspection patterns and do not reverse burn-in or measure numeric pixel response time. For manufacturer care procedures, use the instructions for your exact display model rather than leaving browser patterns running unattended.

References: EIZO visual monitor tests · Windows refresh settings · Mac refresh settings.