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Display troubleshooting tool
LCD Dead Pixel Tester
Run fullscreen solid-color tests to check for dead pixels, stuck pixels, backlight bleed, and display uniformity.
Dead pixel color test
Select a color, enter fullscreen, and inspect your display for stuck dots, dead pixels, glow, and uneven areas.
Mobile tip: Rotate your phone or tablet, increase brightness, and tap fullscreen for the clearest test. To exit, tap the floating “Exit fullscreen” button, swipe down from the top, or press your device Back button.
Current test color
White
How to test your display
- 1. Clean the screen. Dust can look like dead pixels.
- 2. Use fullscreen. Check each color at normal brightness. On mobile, tap “Exit fullscreen,” swipe down from the top, or press Back to leave.
- 3. Look closely. A dead pixel stays black; a stuck pixel may stay red, green, blue, or white.
- 4. Check uniformity. Use gray, white, and black to spot glow or uneven brightness.
Privacy note: This test runs fully in your browser. No image capture, upload, or device scan is required.
Content cluster
Related guides
Use these supporting guides to understand the tool result and next testing steps.
Related tools
Continue with another ScreenMetricLab utility.