White Screen Test
Go fullscreen on the white pattern and look for dark dots, dust specks, and yellow or blue tint.
White Screen
Click the fullscreen button and scan corner to corner
Pattern: White
White Pattern
Look for stuck pixels (always lit), dead pixels (always dark), and uneven backlight patches while viewing this solid color.
Tip: View each color for 15-20 seconds and scan from corner to corner.
What a white screen test reveals
A white background is best for finding dead pixels (they stay dark), dust trapped under the glass, and color tint — a screen that leans yellow or blue. Check from normal viewing distance first, then move closer to inspect anything suspicious.
FAQ
- Why does white look gray on my display?
- Low brightness, power-saving modes, or panel aging reduce peak white output. Raise brightness and disable eco or night modes, then run the test again.
- I found a dark dot. Dead pixel or dust?
- Wipe the screen gently with a microfiber cloth. Dust moves or disappears; a dead pixel stays in exactly the same spot at any brightness.
- Can I use the white screen as a light source?
- Yes — fullscreen white at maximum brightness works as a soft light for video calls. The White Brightness Screen page adds adjustable light levels and warm or cool tones.