Black Hole Wallpaper 4K
Black holes rendered at 4K — glowing accretion discs, warped light and the dark centre they orbit. Community-shared; register to add your own.
A black hole image is the ideal wallpaper subject on OLED: the centre is genuinely black and switched off, while the accretion disc is the only lit part of the panel — so the contrast is real rather than simulated. The disc itself is a long gradient of orange and white, which is exactly what bands into rings in a re-saved file, so source quality matters. Everything here is 3840x2160 or above. Right-click to save; free for personal use.
Common questions
Do black wallpapers actually save battery?
On OLED and AMOLED screens, yes. A true-black (#000000) pixel is switched off rather than dimmed, so it draws no power — and with an always-on display that runs all day the difference is measurable. On an LCD screen it saves nothing, because the backlight stays on either way. Not sure which you have? Our OLED test tool fills the screen with pure black: on an OLED it goes completely dark, on an LCD you can still see the backlight glowing grey.
How do I set one as my wallpaper?
Long-press on mobile or right-click on desktop to save the image, then set it from your gallery or system wallpaper settings.
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