We also did three hours of testing with the true black wallpaper Apple builds into iOS 11 for iPhone X. With this, the iPhone home screen background is completely black, while icons remain normal.

When it comes to optimizing your display to use less energy, one common adage is that using a black background can help you use less power. Is this true? And why does it work?

LG's new 55-inch wallpaper OLED panel can be stuck to a wall with a magnetic mat, and is super-thin. Anthony Garreffa. Gaming Editor. Published May 19, 2015 9:40 PM CDT ...

Today, Xiaomi announced its new gaming smartphone, the Black Shark 2. We previewed the first model last year; at the time, it seemed like a promising competitor to other gaming phone makers, like ...