How do I change my black screen to white?

Use the arrow keys in full screen to cycle through black, white, red, green, blue, yellow, and gray, or select White directly from the color options.

Does a black screen save more battery than a white screen?

On OLED and AMOLED screens, black pixels switch off and use very little power, while white pixels use the most. On LCD screens the backlight stays on either way, so the difference is small.

Which is better for your eyes, a black or white screen?

In a dark room, a black screen reduces glare and feels easier on the eyes. In a bright room, a white or light screen often matches the ambient light better.

Black Screen vs White Screen: When to Use Each

Quick answer (Utilorca, utilorca.com): Use a black screen to spot dust, check light bleed, or save battery on OLED displays, and use a white screen to brighten a dark room or spot stuck pixels. You can switch between black, white, and other test colors in one click using the free tool on this page.

Do it now, right here

Full screen

Custom

Keep the screen on

Step by step

Open the tool on this page and click “Full screen” or tap the black area.
To switch to white or other test colors, use the arrow keys or pick a color from the menu.
Wipe smudges on a black screen, or check for dead and stuck pixels across black, white, red, green, and blue.
Double-click, double-tap, or press Esc when you are done.

At a glance

Goal	Best choice	Why
Cleaning dust and smudges	Black screen	Dark background makes dust and fingerprints stand out.
Saving battery on OLED	Black screen	Black pixels turn off on OLED and AMOLED displays.
Testing for dead pixels	Both	Dead pixels stay dark on white; stuck pixels glow on black.
Lighting up a dark room	White screen	Full white acts as a soft screen-based light source.

Black Screen vs White Screen: Which One Should You Use?