Overview
Pure White Screen.
Full-screen pure white canvas (#FFFFFF) ideal for detecting dust specs under screen protectors, uniform light distribution, and Dirty Screen Effect.
DOMAINscreentesttool.com
CATEGORYcolor
KEYBOARDF • Space • Z
Execution steps
- 01Launch Fullscreen Pure White.
- 02Use as a clean background to inspect display glass for smudges, dust, or dead pixels.
- 03Press "H" to hide controls or click anywhere to toggle secondary color slides.
Diagnostic symptoms
- Yellowish or bluish color temperature shift across panel corners.
- Dark specs (dust particles trapped under screen layers).