Laptop Screen Test

Check your laptop screen for dead pixels, backlight bleed, resolution issues, brightness problems, motion artifacts, and other visible display issues.

Workflow

Laptop Screen Check

Work through these checks in order, directly on the laptop you want to test. All tests run in your browser.

0 / 7 checked

Dead Pixel TestEssentialCheck black, white, red, green and blue fullscreen backgrounds for pixels that stay dark, bright, or one color.
Backlight Bleed TestEssentialUse a black screen in a dim room and inspect the edges and corners for unwanted light.
Screen Resolution TestEssentialCheck the browser-reported screen resolution, viewport and scaling information.Browser values cannot guarantee the physical panel's native resolution.
Greyscale & Uniformity TestRecommendedCheck shadow and highlight detail and look for uneven brightness or tint across the laptop screen.
Brightness TestRecommendedCheck brightness behavior, dark and bright detail and white consistency.
Refresh Rate TestOptionalCheck the observed browser frame cadence and compare it with the laptop's configured refresh rate.
Ghosting TestOptionalUse the moving pattern to look for visible trails, smearing or inverse ghosting.

Method

How to test your laptop screen

Clean the screen
Set the laptop to its normal display settings
Run the tests fullscreen where possible
Inspect the entire screen, including edges and corners
Record anything unusual
If buying a new or used laptop, complete the checks before the return period ends

What to look for

Dead or stuck pixels
Bright patches around edges
Uneven gray or white areas
Dark or bright details that disappear
Unexpected refresh-rate results
Motion trails or smearing

New laptop

Focus on dead pixels, bleed, resolution, uniformity and obvious display defects.

Used laptop

Also check burn-in/image retention, brightness consistency and motion performance.

Open Burn-In Test

Explained

Laptop display problems explained

Dead pixels
Pixels that stay dark or one fixed color on every background.
Backlight bleed
Unwanted light visible around the edges or corners on dark screens.
Screen uniformity
Whether one shade looks even from the center to the edges and corners.
Black level
How dark black and near-black shades appear on the display.
Ghosting
Faint trails or smears left behind moving objects.
Screen tearing
Breaks where parts of a moving image appear out of alignment.
Burn-in
Faint persistent marks left by static content shown for a long time.

FAQ

Laptop Screen Test FAQ

01How do I test my laptop screen?

Open this page on your laptop and work through the checks above in order, using fullscreen where possible.

02How do I check my laptop for dead pixels?

Open the dead pixel test in fullscreen and look for dots that stay dark, bright, or one fixed color on every background.

03How do I test a laptop screen for backlight bleed?

Show a full black screen in a dim room and look around the edges and corners for unwanted light.

04How do I check my laptop screen resolution?

Open the resolution checker. It reports what your browser sees, which does not always equal the physical panel resolution.

05How do I know if my laptop screen is working properly?

If all seven checks look normal, you may not see any obvious display problems. Browser tests cannot detect every hardware issue.

06How do I test my laptop screen before buying?

Run the full workflow on the laptop itself and check for anything unusual before the seller's return period ends.

07Can I test my laptop screen without downloading anything?

Yes. Every check on this page runs directly in your browser with nothing to install.

08How do I test a used laptop screen?

Run the full workflow, then pay extra attention to image retention, brightness consistency, and motion performance.

09Can I test my laptop screen for burn-in?

Yes, with the burn-in test. Look for faint outlines that stay visible when the background changes.