Smartphones have become an essential part of our lives. We use them for everything from staying connected with friends and family to getting work done. But all of this use can take a toll on our smartphones’ batteries.
One way to save battery life on your smartphone is to use a dark wallpaper. OLED displays, which are used in many smartphones, work by turning on individual pixels to create images. When a pixel is turned off, it doesn’t use any power. This means that dark mode on an OLED display can save a significant amount of power, because most of the pixels on the screen are turned off.
How Dark Mode Saves Battery Life
To understand how dark mode saves battery life, it’s helpful to understand how OLED displays work. OLED displays work by using a layer of organic material that emits light when an electric current is applied. Each pixel on an OLED display is made up of three subpixels: red, green, and blue. When an electric current is applied to a subpixel, it emits light of the corresponding color.
To create a dark image on an OLED display, the electric current is not applied to the subpixels. This means that the subpixels don’t emit any light, and the pixel appears black.
When a pixel is turned off on an OLED display, it doesn’t use any power. This is in contrast to LCD displays, which use a backlight to illuminate the entire screen. Even when an LCD pixel is turned off, it still uses some power to block the backlight.
How Much Battery Life Can Be Saved?
The amount of battery life that can be saved by using dark mode on an OLED display varies depending on the brightness of the screen and the content that is being displayed. In general, dark mode can save between 3% and 30% of battery life.
For example, a study by Google found that dark mode saved an average of 6.3% of battery life on the Pixel 2 XL. The study also found that dark mode saved up to 30% of battery life when the screen was at its brightest setting.
Other Benefits of Dark Mode
In addition to saving battery life, dark mode can also have other benefits, such as:
- Reducing eye strain
- Improving sleep quality
- Making it easier to focus on the content on the screen
How to Enable Dark Mode
Most smartphones and apps now support dark mode. To enable dark mode on your smartphone, open the settings app and look for the “display” or “screen” section. From there, you should be able to find an option to enable dark mode.
To enable dark mode in apps, open the app and look for the settings or preferences menu. From there, you should be able to find an option to enable dark mode.
Using dark mode on OLED displays is a great way to save battery life. It can also have other benefits, such as reducing eye strain and improving sleep quality. If your smartphone or app supports dark mode, I encourage you to give it a try.