Dead Pixel Test

Fullscreen monitor dead pixel detection to ensure perfect screen display

Test Instructions

How to Use

  • Click "Start Test" to enter fullscreen mode
  • Click screen to cycle through test colors
  • Press ESC key to exit test

Test Colors

Black - Detect bright pixels
White - Detect dark pixels
Red - Check red channel
Green - Check green channel
Blue - Check blue channel

Detection Tips

Dead Pixel Types

  • Bright pixels: Pixels that appear bright on black background
  • Dark pixels: Pixels that appear black on white background
  • Color pixels: Pixels displaying wrong colors

Important Notes

  • Ensure screen is clean to avoid dust interference
  • Test under appropriate ambient lighting
  • Carefully observe each color's display effect
  • Record the location of any abnormal pixels found