How to set wallpaper and unlock screen to black?

[pkmcafee]

Does anyone know of a wallpaper and unlock screen that is black?
When in grayscale mode, a black pixel is treated as "off", thus using the least amount of power. It provides the greatest amount of contrast for any other gray or white tone in the grayscale mode. It projects the least amount of light in any mode (color orgrayscale) thus attracting the least amount of attention when sneaking a peak at phone at night or in a theater, not that I would do that....

 

[PsychDoc]

Try taking a photo in a dark room with your thumb over the camera lens.

Then set that as your homescreen and lock screen wallpaper.

 

[thegrants82]

Does anyone know of a wallpaper and unlock screen that is black?
When in grayscale mode, a black pixel is treated as "off", thus using the least amount of power. It provides the greatest amount of contrast for any other gray or white tone in the grayscale mode. It projects the least amount of light in any mode (color orgrayscale) thus attracting the least amount of attention when sneaking a peak at phone at night or in a theater, not that I would do that....

Google pure black wallpaper for galaxy s5.

Posted via Android Central App

 

[tomothy94]

Just google True Black wallpaper and save it to your images, then set it as your BG

 

[atg284]

yes true black will have the pixels off...something slightly off black may still have the pixels draw a bit of power. But you can tell if it's close to true black because the black will look like it does when the screen is off.

 

[rDubs22]

Try the dynamic notifications app.

https://forums.androidcentral.com/e...greatbytes.activenotifications&token=NqhFjGYu

just lights up the notification and leaves all other pixels off.

Sent from my SM-G900R4 using Tapatalk

 

[pkmcafee]

Does anyone know of a wallpaper and unlock screen that is black?

Found this:
Pure Black Wallpaper | Android Central
Using it now. Perfect.