4K Dead Pixel Test – Red Green Blue White Black Full Screen
Dead Pixel Test — watch full screen at highest quality. Look for dots that stay the wrong color.
4k-dead-pixel-test.mp4
MP4 · 2 MB
Resolution: 3840x2160
Frame rate: 30fps
Duration: 3m 53s
Format: MP4 (H.264, silent)
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Common use cases
Buying a used monitor or TV
Scan the whole panel for dead or stuck sub-pixels before completing a purchase.
Warranty and return claims
Document pixel defects with a repeatable, full-screen reference before filing a claim.
Frequently asked questions
- What is the difference between a dead and a stuck pixel?
- A dead pixel stays black in every color field; a stuck pixel shows a fixed color regardless of what the screen should display.
- How should I watch this?
- Play it full-screen in a dim room and look closely at each color field for any pixel that does not match the rest of the screen.