It should be understood that, when the ambient light sensor detects the ambient light intensity value, external environment light (i.e., visible light) enters the ambient light sensor through the display region of the display screen. When the display region of the display screen displays information, the display screen itself is also illuminated, and light emitted by the display screen is also visible light. The light emitted by the display screen may also enter the ambient light sensor, thus affecting detection result of the ambient light sensor.

It should be understood that, comparing with a situation that the predetermined picture includes a plurality of colors, the preset region of the display screen emits less light when the predetermined picture displayed by the preset region is a pure color picture. When the pure color picture is a full black picture, i.e., the pure color picture is a pure black picture, the preset region of the display screen emits the least amount of light, so that the display screen has the least influence on the ambient light sensor.

When the control module 201 controls the preset region of the display screen to display the predetermined picture, such as a black picture, the light emitted by the preset region may be minimized to enter the ambient light sensor. Thereby, the influence of the display screen on the ambient light sensor can be reduced, and the accuracy of the ambient light sensor detection can be improved.

The responding module 203 is configured to control the display screen to respond according to the ambient light intensity value.