Dead Pixel Test Tool 🖥️
Dead pixels are defective dots on your screen that don't display properly. Our free online tool helps you detect dead pixels or stuck pixels on your screen and provides solutions to fix them.
How to Test for Dead Pixels
1. Clean Your Screen 🖥️
Make sure your screen is clean, with no dust or dirt that might be mistaken for dead pixels. Use a professional screen cleaning cloth to gently wipe the surface.
2. Start the Dead Pixel Test 🚀
Our dead pixel test tool will run in full-screen mode. You can cycle through different background colors by clicking on the screen or using the space key, including black, white, red, green, blue, and more.
3. Carefully Examine Your Screen 🕵️
If any dots on your screen don't match the color of the rest of the screen, they might be dead or stuck pixels. Note their positions for further repair attempts.
Dead Pixel Repair Methods
Our dead pixel repair tool uses rapidly changing color sequences to attempt to stimulate stuck pixels back to normal function. This method has some success with stuck pixels, but may have limited effect on completely dead pixels.
When using the repair tool, it's recommended to let the screen run for at least 15-30 minutes. Some users report seeing results after longer periods (such as several hours).
Click the "Try to Fix Dead Pixels" button to start the repair process. During repair, the screen will display different colors at a high frequency.
What is a Pixel?
All screens are made up of a large number of dots that can turn on or off and display specific colors. Simply put, these dots are pixels. Each pixel consists of three sub-pixels that display red, blue, or green, and combine at different intensities to create various colors.
Close-up view of screen pixels - you can see the RGB sub-pixels
What is a Dead Pixel?
Sometimes, pixels can malfunction. A dead pixel is a pixel that fails to light up when needed, resulting in a permanent black dot on your screen. This is typically caused by manufacturing defects or damage during use.
What's the Difference Between Dead and Stuck Pixels?
Dead pixels and stuck pixels are different. Some malfunctioning pixels may be stuck on a specific color. This might be due to one or more sub-pixels being locked in a particular state.
Dead pixel - appears as a black dot
Stuck pixel - appears as a dot of fixed color
I Have Dead Pixels on My Screen. What Should I Do?
If you find one or several dead pixels on your screen after running a dead pixel test, you can try the following methods:
- Check Warranty: Contact the manufacturer and/or seller. Depending on your screen or device's age and the organization's warranty conditions, you may be able to get your screen replaced if it has dead or stuck pixels.
- Try Dead Pixel Repair: We provide a dead pixel repair tool that displays rapidly changing colors on your screen to attempt to revive your dead or stuck pixels.
- Physical Methods: Some users report success by gently pressing on the dead pixel area (with a soft cloth wrapped around their finger) while running a repair program. Note that this method carries a risk of damaging your screen, so proceed with caution.
Frequently Asked Questions
Does the Dead Pixel Test Tool Work on All Types of Screens?
Yes, our tool works on various types of screens, including LCD, LED, OLED, and AMOLED displays, as well as phones, tablets, laptops, and desktop monitors.
Will Using the Dead Pixel Repair Tool Damage My Screen?
No. Our software repair method only displays changing colors and won't cause any physical damage to your screen.
How Long Does it Take to Fix a Dead Pixel?
It depends on the pixel's condition. Stuck pixels may recover in minutes to hours, while completely dead pixels may not be fixable through software methods. We recommend running the repair tool for at least 15-30 minutes.