Patent ID: 7787910

Claim:
A mobile terminal having a display unit separable from a first main unit, the first main unit comprising: a first separation sensor for sensing whether the display unit is separated from the first main unit; a Radio Frequency (RF) transmission unit for wirelessly transmitting data to the display unit when the display unit is separated from the first main unit; and a main unit controller for setting a path of the data to be output to the display unit to the RF transmission unit if the separation of the display unit is sensed by the first separation sensor, and the display unit comprising: a second separation sensor for sensing separation of the display unit from the first main unit; an RF receiver unit for receiving data wirelessly transmitted from the RF transmission unit when the display unit is separated from the first main unit; a display controller for setting a path of the data input to the display unit to the RF receiver unit if the separation from the first main unit is sensed by the second separation sensor; a memory for storing the data received by the RF receiver unit; and a display module for displaying the data stored in the memory, wherein, if the display unit is coupled to a main unit of a compatible mobile terminal that is compatible with the display unit, the data stored in the memory is stored in the main unit of the compatible mobile terminal.