Patent ID: 8345429

Claim:
A mobile terminal, comprising: at least one sub-module comprising: a sub-function configuration unit comprising parts configured to perform a function, the sub-function configuration unit being configured to receive at least one control signal associated with performing the function, and a sub-controller configured to control operation of the sub-function configuration unit; and a main terminal comprising: a display unit at a front surface of the main terminal, a connection unit at a rear surface of the main terminal, the connection unit being configured to detachably couple the sub-module in at least electrical communication with the main terminal, and a main controller configured to control a screen output of the display unit and, if the sub-module is coupled to the main terminal, transmit and receive one or more control signals to control a screen output of the display unit and to control operation of the sub-function configuration unit via the sub-controller, wherein a magnet is disposed at a side surface of the connection unit or the sub-module, and the magnet is configured to detachably couple the sub-module in at least mechanical communication with the main terminal.