Why white is useful for inspection
White makes overall panel color easier to judge because any pink, green, or yellow cast becomes more obvious across the screen.
It also helps reveal trapped dust under protectors, pressure marks, and non-uniform areas near edges or corners.
How to run a clean white screen test
Open the homepage, switch to a white screen, and inspect from straight-on and slight side angles. Different angles can make tint variation more noticeable.
Keep the screen clean and reduce reflection. Strong ambient light can hide small dust-like defects or make neutral white look warmer than it is.
What to do when you find tint
Minor warmth or coolness can be normal, but strong uneven patches often matter during reading or design work. Compare multiple brightness levels before deciding severity.
If the issue is on a new device, document it early and compare with another unit if possible.
FAQ
What defects show up best on a white screen?
Dust, tint, edge discoloration, brightness variation, and pressure marks are usually easier to see on a white background.
Can a white screen help find dead pixels?
Yes. Dark dead pixels and dust-like spots can stand out clearly on a full white screen.
Should I test white at full brightness?
Test at a stable high level first, then compare at medium brightness to confirm whether the issue remains visible.
Run the test now
Use the OLED Test homepage to open fullscreen colors, inspect uniformity, and compare panel behavior in real time. The browser-based workflow is fast, free, and works well for quick repeat checks.