Multi-Color Flash
Rapid color cycling for pixel exercising, OLED display maintenance, and stuck pixel repair.
⚠️ Warning: Rapid flashing lights. Not recommended for users with photosensitive epilepsy.
Testing guide
How to use the multi-color flash tool
This cycles rapidly through full-screen colors to exercise every sub-pixel across the whole panel. It serves two purposes: driving stuck sub-pixels back into normal operation, and evening out mild OLED image retention by giving every pixel the same workout.
Best for
- Attempting to revive a stuck sub-pixel that shows a fixed red, green or blue dot.
- Running a pixel-refresh pass on an OLED showing mild uneven wear.
- Exercising a panel that has displayed the same static content for a long period.
How to run the test
- 1Read the flashing warning first and skip this tool if you are sensitive to rapid light changes.
- 2Choose a color preset and a speed; slower cycles are considerably easier on the eyes.
- 3Run it fullscreen for a short session of a few minutes rather than leaving it unattended.
- 4Stop and re-check with a solid color fill to see whether anything has changed.
How to read the result
Stuck pixels sometimes respond after several short sessions, while genuinely dead pixels never will.
Mild OLED retention often fades after a full-panel exercise pass; permanent burn-in will not.
If nothing has changed after several attempts, further running is unlikely to help.
Related tools and guides
Frequently asked questions
Is rapid color flashing safe to watch?
For most people a short session is fine, but rapid flashing can trigger seizures in people with photosensitive epilepsy and causes visual fatigue more generally. Use a slower speed, keep sessions short, and look away while it runs.
How does color flashing fix a stuck pixel?
A stuck sub-pixel is a liquid crystal locked in one position. Rapidly alternating voltages across it can dislodge that state and let it switch normally again. It works on some stuck pixels and never on dead ones, where the transistor itself has failed.
How long should I run it?
Start with a few minutes and re-check, then repeat if there is partial improvement. Long unattended sessions are not recommended, particularly on OLED, where extended full-brightness cycling causes unnecessary wear.
Can this help with OLED image retention?
With temporary retention, often yes, since cycling every pixel through the full color range evens out the recent usage pattern. It cannot help with permanent burn-in, where the sub-pixels have already aged unevenly.
What is the difference between this and the stuck pixel fixer?
The stuck pixel fixer targets a small area you position over one specific defect. This tool flashes the entire screen, which suits whole-panel exercising and OLED refresh rather than one isolated stuck pixel.
Testing guide
How to use the multi-color flash tool
This cycles rapidly through full-screen colors to exercise every sub-pixel across the whole panel. It serves two purposes: driving stuck sub-pixels back into normal operation, and evening out mild OLED image retention by giving every pixel the same workout.
Best for
- Attempting to revive a stuck sub-pixel that shows a fixed red, green or blue dot.
- Running a pixel-refresh pass on an OLED showing mild uneven wear.
- Exercising a panel that has displayed the same static content for a long period.
How to run the test
- 1Read the flashing warning first and skip this tool if you are sensitive to rapid light changes.
- 2Choose a color preset and a speed; slower cycles are considerably easier on the eyes.
- 3Run it fullscreen for a short session of a few minutes rather than leaving it unattended.
- 4Stop and re-check with a solid color fill to see whether anything has changed.
How to read the result
Stuck pixels sometimes respond after several short sessions, while genuinely dead pixels never will.
Mild OLED retention often fades after a full-panel exercise pass; permanent burn-in will not.
If nothing has changed after several attempts, further running is unlikely to help.
Related tools and guides
Frequently asked questions
Is rapid color flashing safe to watch?
For most people a short session is fine, but rapid flashing can trigger seizures in people with photosensitive epilepsy and causes visual fatigue more generally. Use a slower speed, keep sessions short, and look away while it runs.
How does color flashing fix a stuck pixel?
A stuck sub-pixel is a liquid crystal locked in one position. Rapidly alternating voltages across it can dislodge that state and let it switch normally again. It works on some stuck pixels and never on dead ones, where the transistor itself has failed.
How long should I run it?
Start with a few minutes and re-check, then repeat if there is partial improvement. Long unattended sessions are not recommended, particularly on OLED, where extended full-brightness cycling causes unnecessary wear.
Can this help with OLED image retention?
With temporary retention, often yes, since cycling every pixel through the full color range evens out the recent usage pattern. It cannot help with permanent burn-in, where the sub-pixels have already aged unevenly.
What is the difference between this and the stuck pixel fixer?
The stuck pixel fixer targets a small area you position over one specific defect. This tool flashes the entire screen, which suits whole-panel exercising and OLED refresh rather than one isolated stuck pixel.