A mobile terminal, comprising: a display unit; a storage unit; and a controller coupled to the display unit and the storage unit, and the controller configured to: - display on the display unit a first content stored on the storage unit of the mobile terminal in response to an occurrence of a first event on the mobile terminal; - transmit the first content to a terminal in communication with the mobile terminal, wherein the first content is displayed on a display unit of the terminal in communication with the mobile terminal; - output on the display unit of the mobile terminal a second content in response to an occurrence of a second event on the mobile terminal while transmitting the first content to the terminal, wherein the first content is continuously displayed on the display unit of the terminal; - transmit the first content to the terminal if the first content does not include predetermined contents while the first content is displayed on the display unit of the mobile terminal; and - transmit a pre-set image to the terminal instead of the first content if the first content includes the predetermined contents while the first content is displayed on the display unit of the mobile terminal. a display unit; a storage unit; and a controller coupled to the display unit and the storage unit, and the controller configured to: - display on the display unit a first content stored on the storage unit of the mobile terminal in response to an occurrence of a first event on the mobile terminal; - transmit the first content to a terminal in communication with the mobile terminal, wherein the first content is displayed on a display unit of the terminal in communication with the mobile terminal; - output on the display unit of the mobile terminal a second content in response to an occurrence of a second event on the mobile terminal while transmitting the first content to the terminal, wherein the first content is continuously displayed on the display unit of the terminal; - transmit the first content to the terminal if the first content does not include predetermined contents while the first content is displayed on the display unit of the mobile terminal; and - transmit a pre-set image to the terminal instead of the first content if the first content includes the predetermined contents while the first content is displayed on the display unit of the mobile terminal. - display on the display unit a first content stored on the storage unit of the mobile terminal in response to an occurrence of a first event on the mobile terminal; - transmit the first content to a terminal in communication with the mobile terminal, wherein the first content is displayed on a display unit of the terminal in communication with the mobile terminal; - output on the display unit of the mobile terminal a second content in response to an occurrence of a second event on the mobile terminal while transmitting the first content to the terminal, wherein the first content is continuously displayed on the display unit of the terminal; - transmit the first content to the terminal if the first content does not include predetermined contents while the first content is displayed on the display unit of the mobile terminal; and - transmit a pre-set image to the terminal instead of the first content if the first content includes the predetermined contents while the first content is displayed on the display unit of the mobile terminal.