OLED Screen Test

Check your OLED / AMOLED display for dead pixels, burn-in, and black level. Tap any color to go fullscreen.

How to use:

Tap a color above to open fullscreen.
Look for pixels that don't match the expected color — those are dead or stuck.
On black test: perfect OLED shows “infinite” contrast — no glow at all. LCD shows slight gray.
For burn-in: switch between colors quickly; ghost images = burn-in.
Best viewed on max brightness in a dark room.

How to test your OLED display

Enter fullscreen mode — the tool will fill your entire screen.
Cycle through solid black, white, red, green, and blue tests.
Look for dead pixels (spots that stay the wrong color) or burn-in (ghost outlines).

Why OLED screens need testing

OLED and AMOLED panels can develop dead pixels (subpixels stuck off) or burn-in (permanent ghost images from static content like navigation bars or logos). Both defects are covered by manufacturer warranties in the first year — but you have to spot them first. Our test runs the industry-standard color sweeps used by display technicians.

Pro tips

Run the test in a dark room to spot subtle color shifts.
Look at all four corners — dead pixels are often near the edges.
If you see burn-in, take a photo (with another device) as evidence for a warranty claim.

Frequently asked questions

What is OLED burn-in?

A permanent ghost image left behind when static content (like a navigation bar) stays on screen for hundreds of hours. Individual pixels age unevenly, leaving a visible shadow.

How do I check for dead pixels?

Cycle through the solid color tests fullscreen. A dead pixel stays black on every color; a stuck pixel glows one fixed color. Both are easiest to spot on the pure red, green, and blue screens.

Can burn-in be fixed?

True burn-in is permanent — prevention is the only cure. Use dark themes, auto-hide static UI, and avoid maximum brightness for long static sessions.