All-around check
A complete pass through the basics.
Use familiar colors and gray shades to look over an OLED screen.
RGB 255, 255, 255Select a color, then give it the whole screen.
Tap the pattern to show controls. No automatic cycling or flashing.
Save what you noticed, so you can compare later. One record per test, stored only in this browser.
⌂ Local to this deviceNo automatic result. Choose only what you actually observed.
Choose a check for what you’re seeing.
A complete pass through the basics.
Compare gray screen shades for bands, tint, and uneven areas.
Compare LCD black and near-black fields for edge light.
Fixed dark, bright, or colored points.
Lingering logos, shapes, or uneven tones.
Compare familiar colors and gray levels on an LCD.
You do the observing.
We provide the patterns.
Use a comfortable brightness and your normal viewing position. Turn off night color filters and avoid reflections.
Compare low and middle gray patterns, then white, black, red, green, and blue.
If a shape catches your eye, check whether it stays in the same physical place across colors and during ordinary use.
Record what you saw and the conditions. A short browser test cannot establish whether image retention is temporary or permanent.
It displays full-screen colors and several gray levels so you can compare the same area by eye. It cannot inspect the panel electronically or certify that it is healthy.
No. This page displays still color and gray fields directly in the browser, so you do not need a downloaded image or video. Browser colors still depend on the device and settings, and the check cannot determine whether a mark is temporary or permanent.
Yes. Open the page on the phone you want to inspect, use a comfortable brightness, and compare each field in the same location. Auto brightness, night filters, and browser bars can affect the view.
No. A shape that remains visible may be temporary image retention or a persistent panel change. A short check cannot establish which one it is.
No. It displays low and middle gray levels for visual comparison. Mapping luminance across a panel requires calibrated measuring equipment.
Compare the clues, then return to the tool to repeat your check.
Instructions source-checked · Apple: OLED image persistence and burn-in. Manufacturer guidance explains the concepts; it does not certify this tool or your panel.
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