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How to Check for Dead and Stuck Pixels

What Are Dead and Stuck Pixels?

Dead pixels are tiny dots on your screen that appear black and never light up. Stuck pixels are always on and show a single color like red, green, or blue. Both can be annoying, but they’re easy to spot with the right test.

Why Use a Fullscreen Color Test?

A fullscreen color test fills your screen with solid colors. This makes any pixel that doesn’t match the background stand out clearly. You can test for dead pixels (black on white) or stuck pixels (colored dots on solid backgrounds).

How to Check for Dead Pixels

  1. Set your screen to white: Use a fullscreen white screen. Look for any black or dark dots.
  2. Test other colors: Switch to red, green, blue, and black. Dead pixels stay black on all colors; stuck pixels show as a fixed color.
  3. Mark the location: Note where you see issues. You can use a piece of tape on the bezel to mark spots.

What to Do If You Find a Pixel Issue

Prevention Tips

Avoid pressing on the screen and keep it clean. Use a gentle touch when wiping. Regular testing helps you catch issues early.

Use a free tool like White Screen to run these tests. It’s quick, easy, and doesn’t require any downloads.

Open White Screen in fullscreen

Fill your display with a clean white screen screen.

Frequently asked questions

Who is the “How to Check for Dead and Stuck Pixels” guide for?

It is written for people checking everyday monitors, televisions, laptops, tablets, and phones without specialized diagnostic equipment. White Screen emphasizes bright-field checks, neutral lighting, and finding dark defects or surface marks.

Do I need to install any software?

No. The related screen tools run in a modern browser. You only need fullscreen access and enough time to compare the display carefully. White Screen emphasizes bright-field checks, neutral lighting, and finding dark defects or surface marks.

When should I contact the manufacturer?

Contact the manufacturer when a defect persists across devices or inputs, affects normal use, or may qualify under the display's warranty or pixel policy. White Screen emphasizes bright-field checks, neutral lighting, and finding dark defects or surface marks.

Does How to Check for Dead and Stuck Pixels work on phones and tablets?

Yes. The page adapts to modern phones and tablets as well as laptops, monitors, and televisions. Fullscreen behavior can vary slightly by browser and operating system. White Screen emphasizes bright-field checks, neutral lighting, and finding dark defects or surface marks.

Is How to Check for Dead and Stuck Pixels free to use?

Yes. whitescreen.lol provides this page without payment or account registration. Standard browser and device limitations still apply. White Screen emphasizes bright-field checks, neutral lighting, and finding dark defects or surface marks.