Dead Pixel Test

Identify dead, stuck, and defective pixels on your display with our comprehensive testing tool. Perfect for quality assurance, warranty claims, and ensuring optimal display performance.

Pixel Testing
Quality Check
Defect Detection
Issue Finding
White Test
Best for detecting dark dead pixels
Testing Instructions:
• Look for spots that don't match the background color
• Dead pixels appear as black spots on white/colored backgrounds
• Stuck pixels appear as colored spots on black backgrounds
• Use G to toggle grid, Spacebar to cycle tests, F for fullscreen
Keyboard Shortcuts:
Spacebar: Next TestF: Toggle FullscreenC: Toggle ControlsG: Toggle GridESC: Exit Fullscreen

Why Test for Dead Pixels?

Dead pixels can significantly impact your viewing experience and indicate display quality issues.

Display Quality Assessment

Evaluate the overall quality of your display and identify any manufacturing defects that affect image quality.

Pixel Defect Detection

Identify dead pixels (completely non-functional), stuck pixels (stuck on one color), and other pixel defects.

Warranty Claims

Document display issues for warranty claims or returns if your device has excessive dead pixels.

Purchase Decisions

Test displays before purchase to ensure you're getting the best quality for your investment.

Professional Use

Essential for photographers, designers, and professionals who need perfect image quality.

Maintenance Planning

Monitor pixel health over time and plan maintenance or replacement when necessary.

Pro Tips for Dead Pixel Testing

Maximize the effectiveness of your dead pixel test with these expert tips.

Testing Process

  • Test with multiple solid colors
  • Use fullscreen mode for accuracy
  • Test from different viewing angles
  • Document any issues found

Types of Pixel Issues

  • Dead pixels (black spots on white)
  • Stuck pixels (colored spots)
  • Hot pixels (bright spots on dark)
  • Sub-pixel defects (partial color issues)

Other Display Tests

Complete your display testing with our comprehensive suite of testing tools.

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Backlight Bleed Test

Identify LCD display backlight bleeding and uniformity issues.

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OLED Burn-in Test

Check for image retention and burn-in on OLED displays.

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Black Screen

Perfect for eye comfort and OLED battery saving.

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White Screen

Ideal for screen cleaning and detecting dark dead pixels.