Screen brightness adjusting method and device

The invention discloses a screen brightness adjusting method and equipment, and the method comprises the steps: collecting the current environment illuminance in a vehicle, obtaining the corresponding output percentage value of the current backlight brightness based on the collected current environment illuminance in the vehicle, and obtaining the accurate output percentage value of the current backlight brightness based on the environment perception normalization processing of visual characteristics. The adaptive detection of the ambient light is realized; according to the invention, the corresponding output level of the current backlight brightness is obtained based on the output percentage value of the current backlight brightness, and the in-vehicle screen is adjusted to the corresponding brightness value based on the output level of the current backlight brightness, so that a screen brightness adjusting mechanism based on the output level of the segmented backlight brightness can be realized. According t