Screen Dead Pixel Test

⚠️ Preparation:

  1. Close unnecessary applications
  2. Set screen brightness to maximum
  3. Clean the screen surface
  4. Prepare a dark environment
  5. Ensure using monitor's native resolution

🔍 Test Steps:

  1. Click start test button to enter fullscreen mode
  2. Click screen or use arrow keys to cycle through colors
  3. Check carefully for dead or stuck pixels
  4. Press ESC key anytime to exit test

💡 Professional Knowledge:

What is a dead pixel? - A permanently non-functioning pixel on the display, usually appearing black.

What is a stuck pixel? - A pixel that displays an incorrect color consistently.

How to distinguish? - Test with different color backgrounds. Dead pixels appear black in all colors, while stuck pixels may display normally in some colors.

❓ FAQ:

Q: What to do if I find dead pixels?
A: If under warranty, contact the manufacturer for repair or replacement. In some cases, gently massaging the area might help.

Q: How long should I test?
A: Recommend observing each color for at least 10 seconds to ensure thorough inspection.

Q: Why test in a dark environment?
A: Dark environment reduces ambient light interference, making dead and stuck pixels easier to spot.

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⌨️ Keyboard Shortcuts:

→ Next color
← Previous color
ESC Exit test
Space Pause/Resume

🎉 Test Complete!

May you find a perfect screen!