Method and mobile terminal for screen backlight adjusting

Abstract

The invention discloses a method and a mobile terminal for screen backlight adjusting, wherein the method includes: the mobile terminal obtains a present measured value of an ambient light sensor and judges whether the difference between the present measured value of the ambient light sensor and the last measured value is larger than a threshold value, if the difference between the present measured value of the ambient light sensor and the last measured value is larger than the threshold value, a present measured value of a gravity sensor in the mobile terminal is obtained, and an elevation angle of the mobile terminal is determined, whether the elevation angle is larger than a critical value is judged if the elevation angle is smaller than or equal to the critical value, corresponding screen backlight brightness is determined and set according to the present measured value of the ambient light sensor and a first relation, and if the elevation angle is larger than the critical value, the screen backlight brightness is controlled to be constant or be relatively small in variation. Due to the method, in an indoor environment, when the elevation angle of the position which the mobile terminal is located is larger than the critical value, the situation in which drastic change of screen backlight happens can be avoided, and the experience of a user is optimized.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to a method for adjusting a screen backlight and a mobile terminal. Background technique [0002] At present, mobile terminals are generally provided with ambient light sensors to adjust the backlight of the screen of the mobile terminal. The mobile terminal can learn the light intensity of the environment where the mobile terminal is currently located through the ambient light sensor, and adjust the brightness of the screen backlight according to the current ambient light intensity to adapt to the environment. [0003] In the existing method of adjusting the screen backlight by using the ambient light sensor, it is generally believed that there is a linear positive correlation between the ambient light intensity and the screen backlight, so the mobile terminal directly adjusts the screen backlight linearly according to the obtained current ambient light intensity. How...

AI Technical Summary

Problems solved by technology

When the elevation angle of the mobile terminal is greater than a certain angle, the value measured by the ambient light sensor will decrease rapidly as the elevation angle increases.

In the prior art, at this time, a relatively small change in the angle of the mobile terminal will cause a large change in the value measured by the ambient light sensor. Correspondingly, the screen backlight will also change drastically, causing poor user to experience

Images