Patent ID: 8400441

Claim:
A display apparatus comprising: a display part to display an image thereon; a video signal processor to convert a first input video signal into a signal having a format displayable by the display part and a second input video signal different from the first input video signal into a signal having a format displayable by the display part; a network controller connectable to a network to transmit and/or receive data according to a predetermined protocol; a data processor to process the data transmitted and/or received through the network controller into the second video signal having a format processible by the video signal processor; and a controller in communication with the video signal processor, the network controller, and the data processor to control display of the first and second video signals and to control power to be supplied to the data processor according to a determination of whether data is transmitted and/or received by the network controller through the network, wherein the network controller supplies data receiving information regarding whether the data is transmitted and/or received through the network to the controller, and the controller maintains power to the video signal processor and the network controller while shutting off power to the data processor when the data receiving information indicates that no data is transmitted and/or received through the network controller.