OLED Screen Test Guide
OLED pixels emit their own light — black is truly off. Stuck bright pixels and image retention show up fast with the right patterns.
Start with essentials
OLED fails differently from LCD. Infinite contrast makes defects obvious, but static UI can wear the panel over years.
Any self-lit subpixel on a pure black field is visible at a glance — prioritize the black step in dead pixel test.
Retention fades in minutes or after pixel refresh. Burn-in is a permanent outline — know which you are seeing.
Do not leave test patterns fullscreen for hours. OLED wear accelerates with brightness and static content.
Four focused steps. Run pixel refresh from device settings when finished.
Black step is critical; any lit dot stands out. Follow with white for dark stuck pixels.
Varied motion, then inspect black for UI ghosts. Look for keyboard, status bar, or channel logos.
Full-screen white may dim as ABL kicks in — note how quickly and whether it affects your use case.
Grey ramps reveal black crush — loss of shadow detail near zero. Important for film grading.
WOLED uses a white OLED with color filters (common in TVs). QD-OLED uses blue OLED with quantum dots (brighter, different wear profile).
Manufacturer compensation cycle that clears retention. Run after heavy static use or long test sessions.
Automatic limiter reduces brightness on large bright areas to protect panel — normal, not a defect.
Inspection focus shifts slightly by OLED type.
Mobile
Creators
Living room
Gaming
Bright pixels and permanent burn-in vs normal OLED behavior.
OLED warranty terms vary on burn-in. Document with photos and timestamps.
Move through patterns — do not pause on one image.
Use max for pixel check, then lower for long sessions.
After testing, use TV/phone factory refresh if available.
If eyes strain at low brightness, test flicker at your daily level.
White screen for ten minutes reveals old UI wear.
Enable screen timeout for daily coding or news use.
No. Retention fades; burn-in is permanent visible wear. Run pixel refresh to tell them apart.
Ten to fifteen minutes of changing patterns is enough — never leave static logos for hours.
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