Dead Pixel Test
Inspect your screen with fullscreen solid colors to find dead pixels, stuck pixels, bright defects, and panel problems quickly.
Display info
Use fullscreen mode for the cleanest inspection.
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Start fullscreen inspection
Cycle through white, black, red, green, and blue backgrounds and inspect the whole panel slowly.
Inspect corners, edges, and the center. Use a closer viewing distance than normal desktop use so tiny point defects are easier to spot.
What to look for
Different defects reveal themselves on different backgrounds.
- Dead pixels often stay black across all colors.
- Stuck pixels often stay visibly red, green, blue, or another bright color.
- Backlight bleed shows up more like larger glowing areas than tiny point defects.
- Smudges or dust usually move or look different from a true panel defect.
If you think the defect is stuck rather than dead, continue with How to Fix a Stuck Pixel.
Frequently Asked Questions
How do I run a dead pixel test? +
Open each solid color screen, go fullscreen, clean the display surface, and inspect the panel from a normal viewing distance. Dead pixels stay dark, while stuck pixels remain one color.
Can a stuck pixel be fixed? +
Sometimes. A stuck pixel may recover after gentle color cycling, but a dead pixel that stays black is usually a hardware defect. Avoid hard pressure that could damage the panel.
When should I use warranty for dead pixels? +
Use warranty or return options when the pixel defect is new, visible in normal use, or meets the manufacturer's policy. Photograph the defect on multiple solid colors before contacting support.
Matched recommendation
After the panel check
Matched to the issue path above. We may earn a commission from qualifying purchases.
Monitor path
Finish with evidence.
Jump back to the live tester, then use repair-first picks only when the result is repeatable.