Method and device for automatically controlling state indicator of terminal device

A device for automatically controlling a state indicator of a terminal device, comprising:

• a brightness signal acquisition component configured to detect brightness of a working environment of a terminal device in real time to acquire a brightness signal of the working environment of the terminal device;
• a brightness signal current electric level value determination component configured to determine a current electric level value of the brightness signal according to a variation of electric level values of the brightness signal within a preset duration;
• a light-on and light-off electric level value determination component configured to determine the current electric level value as a light-on electric level value or a light-off electric level value according to a preset threshold;
• and
• an indicator control component configured to control the state indicator of the terminal device to carry out a light-on or light-off operation according to the determined light-on electric level value or light-off electric level value.