Screen Dead Pixel Test

Quickly test for dead pixels on your screen! Provides fullscreen solid color tests in black, white, red, green, blue and more to help you find stuck pixels, dead pixels or color defects. Perfect for testing new monitors or pre-repair checks.

💡 How to Test

  1. 1. Click "Start Test" to enter fullscreen mode
  2. 2. Use arrow keys or buttons to cycle through colors
  3. 3. Look for stuck pixels or abnormal spots on the screen
  4. 4. Press Esc or click Exit to return

什麼是壞點?

亮點: 在黑色畫面下顯示為白色或彩色的點,表示該像素持續發光。

暗點: 在白色或彩色畫面下顯示為黑色的點,表示該像素無法發光。

色點: 在純色畫面下顯示為其他顏色的點,表示該像素的某個子像素故障。