DeadPixelTest.org > Dead Pixel on Monitor: How to Test Your Screen and Fix Its Dead Pixels

Dead Pixel on Monitor: How to Test Your Screen and Fix Its Dead Pixels

Discovering dead pixels on a monitor can be a frustrating experience, especially when they disrupt your viewing pleasure or professional work. These tiny, unresponsive dots can be a distraction, and a dead pixel on a monitor can ruin your gaming, movie, or woring experience. However, the dead pixels on your screen can sometimes be fixed, so understanding what they are and how to address them can help you restore your monitor to its full glory. This comprehensive guide will walk you through the steps to test your monitor for dead pixels and explore possible fixes.

What Is a Dead Pixel?

A dead pixel is a single pixel on your monitor that no longer functions as expected. Unlike healthy pixels that change color in response to the image being displayed, a dead pixel remains unlit, appearing as a constant black dot on your screen. This occurs when all three sub-pixels (red, green, and blue) fail to receive power, rendering the pixel permanently off. For more information, read our in-depth article What is a Dead Pixel?.

Causes of Dead Pixels

How to Test Your Screen for Dead Pixels

Testing your monitor for dead pixels is a straightforward process that can help you identify any problematic areas.

Step 1: Prepare Your Screen

Before beginning the test, ensure your screen is clean. Sometimes, a little bit of dust on your screen can fool you to think that there is a dead pixel on it. Follow these simple steps to clean your monitor before performing a dead pixel test:

You might want to read our guide on how to safely clean your monitor.

Step 2: Display a Solid White Background To Spot Dead Pixels More Easily

A white background provides the best contrast to spot dead pixels:

For a more thorough examination, consider using an online tool:

Step 3: Scan for Black Dots or Malfunctioning Pixels

The black dots will be dead pixels. However, sometimes, bad pixels can be stuck to any color. Read our guide to distinguish dead pixels from stuck pixels.

How to Fix Dead Pixels

While dead pixels are often considered permanent, there are a few methods you can try to revive them. Success isn't guaranteed, but it's worth attempting before seeking professional help.

Method 1: Use DeadPixelTest.org's Pixel Fixer

DeadPixelTest.org offers a dedicated pixel fixer tool, including pixel-fixing videos specifically designed for smartphones.

Method 2: Gentle Pressure Technique

Applying slight pressure can sometimes reactivate a dead pixel.

Warning: This method carries a risk of causing more damage. Proceed with caution.

Method 3: Wait and See

In some cases, dead pixels may fix themselves over time:

When to Seek Professional Help

If self-fixing methods don't work, it might be time to consider other options.

Check Your Warranty

Professional Repair Services

Consider a Replacement

Preventing Future Dead Pixels

While not all dead pixels can be prevented, following best practices can minimize the risk.