Method and device for controlling state of screen

Abstract

The invention provides a method and a device for controlling the state of a screen. The method comprises the following steps: when a mobile terminal is in a strong-light environment, entering a strong-light mode, and acquiring multiple light intensity values collected continuously by an ambient light sensor within a preset time; analyzing the change characteristics of the acquired light intensity values within the preset time to judge whether the mobile terminal leaves the strong-light environment; if the mobile terminal leaves the strong-light environment, exiting from the strong-light mode, and adjusting a current distance threshold to enable a proximity sensor to report a screen control event according to the adjusted distance threshold; and acquiring a screen control event reported by the proximity sensor, and controlling the state of the screen according to the screen control event. According to the invention, whether a mobile terminal really leaves a strong-light environment can be judged accurately, the proximity sensor can accurately report a screen control event under control according to the environment of the mobile terminal and based on a corresponding distance threshold, and the problem of screen flicker can be solved effectively.

Description

technical field [0001] The present invention relates to the technical field of terminals, in particular to a method and device for controlling the state of a screen. Background technique [0002] With the development of mobile terminal technology, intelligent mobile terminals such as smartphones, tablet computers, and smart cameras have become indispensable tools in people's daily life. Various sensors are usually built into the mobile terminal to control the mobile terminal according to its own functions. Among them, the proximity sensor is to report the proximity event by detecting the distance between the human face or human ear and the screen of the mobile terminal, judging whether the human face or human ear is close enough to the screen, or judging whether the distance between the human face or human ear and the screen is far enough to Report the far away event, so that the screen can be turned off or on. Since the work of the proximity sensor is based on infrared em...

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Problems solved by technology

[0003] However, since the sun's rays often contain a large amount of infrared rays, the proximity sensor is easily disturbed by it, resulting in the measured proximity value fluctuating from high to low, and a jump occurs. For a while, it is in the close state when it is greater than the upper limit threshold, and for a while it is less than the lower limit threshold. The remote state makes the mobile terminal unable to accurately control the screen to turn on or off according to the actual distance between the face or the ear and the screen. The most direct result is that the screen of the call interface keeps flickering

[0004] In order to solve the above-mentioned technical problems in the prior art, different thresholds are set for the strong light environment and the non-strong light environment respectively, but the jump of the close value is a process of continuous interference by the strong light, and the prior art cannot accurately judge whether the mobile terminal is genuine or not. After leaving the strong light environment, as long as the measured light intensity value returns to normal, the threshold value of the non-strong light environment will be used instead. However, the proximity value is still in constant jump at this time. If there is a strong light environment, the call interface screen will continue to flicker soon, and the above technical problems still exist

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