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Mobile phone night mode is a mode relative to night sight, which is mainly used in the case of low brightness and less harm to eyes.

DarkMode, also known as dark mode or dark mode, is a display mode with high contrast or reverse color mode. This mode is becoming more and more popular now, because it is generally believed that it can relieve eye fatigue and make it easier to read compared with the traditional black characters on a white background. Whether it is to "not disturb the sleeping people around" or "protect the eyesight", the overall brightness of the screen is closer to the night environment, thus reducing the stimulation to your eyes or others.