But it's tough to use a dim screen in bright environments, so most phones offer an auto-brightness mode that automatically adjusts the screen's brightness based on ambient light.

但是在明亮的环境下使用昏暗的屏幕是非常难受的，所以大多数手机都提供自动亮度调节模式，可以根据周围环境的亮度自动调节屏幕亮度。

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In the case of a data input mode, the brightness of the backlighting is reduced.

在数据输入模式情况下，减小背面光照明的亮度。

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Apple also introduced Night Shift, a mode that changes the brightness of the screen based on the time of day and location of the device.

苹果还推出了夜间模式，该模式会基于设备所处的时间和地点来改变屏幕的亮度。

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It's also coated in Gorilla Glass 2, with ClearBlack tech and a high-brightness mode to improve outdoor visibility and the same super-sensitive touchscreen that means you'll be able to steer the phone with your gloves on.

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Situated above the main native notification panel, the extra panel has a screen brightness slider sandwiched between the outdoor mode button and automatic brightness button.

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To further reduce power consumption, a "no source detected" mode automatically lowers brightness to 30 percent when no display has been detected for more than three minutes.

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