Dead Pixels vs Stuck Pixels: How to Tell the Difference Fast

Dead Pixels vs Stuck Pixels: How to Tell the Difference Fast

Test your screen now — use White to spot black dots and Black to spot bright dots. That alone usually tells you which problem you have.

If you only want the quick answer, here it is:

• Black dot on a white screen: usually a dead pixel
• Bright red, green, blue, or white dot on a black screen: usually a stuck pixel
• Shadow, haze, or uneven glow: probably not a pixel defect at all

That difference matters because the next step is different. A stuck pixel is worth trying to fix. A true dead pixel usually is not.

Dead pixel vs stuck pixel

Dead pixel

A dead pixel does not light up properly. It usually looks like a tiny black dot on white or other bright backgrounds. It stays in the same place and does not suddenly change color because the pixel is not responding the way it should.

In plain English, this is usually a hardware failure.

Stuck pixel

A stuck pixel is still active, but one or more sub-pixels are locked on. That is why it often shows up as a bright red, green, blue, or white dot, especially on dark backgrounds.

This is the one people sometimes recover with a flasher or one careful pressure attempt.

The fastest way to check

Open the Screen Test and run through these backgrounds in fullscreen:

1. White
2. Black
3. Red
4. Green
5. Blue
6. Gray

What to look for:

• If the dot is black on white and stays black on other bright colors, it is likely dead.
• If the dot glows on black and changes appearance on color backgrounds, it is likely stuck.
• If the spot fades when you change angle or room lighting, it may be coating grain, glare, or glow instead.

Things people confuse with pixel defects

Dust or lint

If the screen is dirty, a speck can look worse than it is. Clean the panel first with a microfiber cloth and check again.

IPS glow or backlight bleed

Glow and bleed are usually patches or haze, not a sharp single dot. If you are seeing something broader near the edges, read IPS Glow vs Backlight Bleed.

Burn-in or image retention

Burn-in is usually a faint shape, logo, or shadow. It does not look like one tiny pinpoint defect.

Pressure marks

A pressure mark usually looks like a cloudy patch, bruise, or ripple, not a perfect dot.

So which one is worse?

A dead pixel is usually worse because there is not much to do besides document it and decide whether to return the display.

A stuck pixel is annoying, but at least it gives you a chance. If it is bright on black, try the safe stuck-pixel steps first:

• Run a flasher for a while
• Re-test
• If you really want to, try one careful pressure attempt

If you are not sure whether it is dead or stuck, do not jump straight to "fixes." Confirm the type first.

When to return the monitor

You should take the defect more seriously if:

• It is near the center of the screen
• There are several defective pixels
• You notice them during normal use, not just during testing
• You are still inside the retailer return window

Retailer return windows are often easier to deal with than manufacturer pixel policies. Do not waste that window by waiting too long.

What to do next

• If it is bright on black, go to How to Fix a Stuck Pixel
• If it is black on white, read Can Dead Pixels Be Fixed?
• If you still are not sure what you are seeing, start with Dead or Stuck? How to Diagnose Your Screen Issues

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Next steps: Verify with the Screen Test. If it is bright on black, try How to Fix a Stuck Pixel. If it is black on white, read Can Dead Pixels Be Fixed?.