Patent ID: 8760523

Claim:
A display apparatus that is connected to an output apparatus via communication means capable of transmitting power, the output apparatus outputting video data, and that displays video data input from the output apparatus using the communication means, the output apparatus being configured to supply power to the display apparatus in accordance with an output of video data to the display apparatus and to stop the supply of power in correspondence with stop of the output of video data, the display apparatus comprising: a detecting unit adapted to detect a state of supply of power output from the output apparatus; an acquiring unit adapted to acquire information indicating an operation mode of the output apparatus; and a control unit adapted to perform control to, in accordance with having been supplied with power from the output apparatus, set a control signal for establishing an electrical connection with the output apparatus via the communication means to an ON level to establish an electrical connection with the output apparatus, and to, in case supply of power from the output apparatus is stopped, disconnect the electrical connection with the output apparatus by setting the control signal to an OFF level, wherein in case the detecting unit detects that the supply of power has been stopped in a state where the control signal is in the ON level, if the operation mode of the output apparatus, which is acquired by the acquiring unit, is an operation mode in which after an output of video data is temporarily stopped, an output of video data is restarted, the control unit performs control so that the control signal is not changed to the OFF level.