Does a white screen drain battery?

On LCD/IPS screens, a white screen consumes standard power. However, on OLED/AMOLED displays , displaying pure white uses maximum power because every pixel is fully lit. If you need to save battery on an OLED device, use our Black Screen Tool instead.

How do I fix a stuck pixel?

A stuck pixel (red, green, or blue dot) can sometimes be fixed by rapidly flashing colors. Try our Color Game or use a specialized pixel fixer tool that cycles colors at high speed to "unstick" the liquid crystal.

Uniformity

DISPLAY ACCURACY

Screen Uniformity Test

Check for brightness and color evenness across your display. Detect edge darkening, backlight bleeding, and color shifts.

Test Type

Brightness Level:

50%

5% 25% 50% 75% 95%

Best tested in a completely dark room
Press ESC or Click anywhere to exit
Look for dark corners or cloudy patches

Why Screen Uniformity Matters

For Photographers

Uniformity is critical for professional editing. If your screen has vignetting (dark corners), you might over-brighten edges, ruining prints. Tested uniformity ensures your display is a reliable reference.

For Gamers

The "Dirty Screen Effect" (DSE) is visible during camera pans over uniform colors. This test helps identify banding and clouding on new monitors within their return window.

Common Panel Defects

Backlight Bleed

Light leaking from the edges, destroying black levels in dark environments.

Clouding (Mura)

Uneven patches of brightness caused by poor assembly or pressure.

Color Tinting

Warm or cool shifts across the panel, making color grading impossible.