Dead Pixel Test Guide
A practical guide for understanding dead pixels, stuck pixels, and subpixel defects before returning a display.
MonitorTest Guide
Open related testWhat is a dead pixel?
A dead pixel is a pixel that no longer responds to power and usually stays black.
A stuck pixel is different because it may remain red, green, blue, or white.
- Many users confuse dust, smudges, or compression artifacts with real panel defects, so full-screen solid colors are the best way to test.
How to test properly
Clean the screen gently.
Use the monitor at native resolution.
- Inspect black, white, red, green, and blue backgrounds in full screen.
- If the same point appears in the same position across several colors, the chance of a real defect is much higher.
How serious is it?
A defect near the center is usually more distracting than one in a corner.
Bright stuck pixels stand out more in dark games and movies.
- If the monitor is new, testing early gives you better return options.
Knowledge Center
Detailed articles that explain the ideas behind the tests and focused landing pages.