Patent ID: 8495706

Claim:
A display controller including software executable by a processor, the display controller comprising: a first display controlling module that, when executed by the processor, displays video of a broadcast program on a display screen; a first receiving module that, when executed by the processor, receives an operation; a second display controlling module that, when executed by the processor, displays security information on the display screen upon the receipt of the operation by the first receiving module; a second receiving module that, when executed by the processor, receives, from an external device to which the security information is input, the security information and identification information identifying the external device, after the security information is displayed; a storage module configured to store therein the received identification information; a third receiving module that, when executed by the processor, receives a request for connection from the external device, while the video of the broadcast program is displayed on the display screen; a fourth receiving module that, when executed by the processor, receives the screen information from the external device, if the received request for connection is sent from the external device identified by the identification information stored in the storage module; and a third display controlling module that, when executed by the processor, displays the received screen information on the display screen if the received request for connection is sent from the external device identified by the identification information stored in the storage module, and to continue displaying the video of the broadcast program if the received request for connection is not sent from the external device identified by the identification information stored in the storage module.