⚫
Dead Pixel
Always off pixel
(appears as black dot)
🔴
Stuck Pixel
Stuck on one color
(red/green/blue dot)
⚪
Hot Pixel
Always on pixel
(appears as bright dot)
- 👆 Click to change colors: In fullscreen, click to move to the next color
- 🔍 Check entire screen: Pay special attention to screen edges
- 💡 Adjust brightness: Set monitor brightness to maximum for easier detection
- 🌙 Dark environment: Testing in a dark room improves accuracy
- ⎋ Exit: Press ESC or click the screen to exit the test
- 📱 New monitor: Test immediately after unboxing within the return period
- 🧹 Check for dust: What looks like a dead pixel might be dust - clean your screen
- 🔧 Fix stuck pixels: Stuck pixels may be fixed with pixel refresh tools
- 📋 Warranty policy: Most manufacturers only replace monitors with a minimum number of defects