Image display apparatus for controlling an external data transmitting device using a USB connector and a method thereof

A method for controlling an image display apparatus comprising a first connector and a second connector, the method comprising:

• receiving an image signal via the first connector and the second connector, respectively;
• displaying the image signal input via the selected connector when one of the first connector and the second connector is selected;
• and
• transmitting a control signal to an external device connected via a data line of the second connector to stop transmitting the image signal input via the second connector when the image signal input via the first connector is selected for display, the control signal including a specific request to interrupt the transmission of the image signal,
• wherein the second connector comprises a universal serial bus (USB) connector and receives the image signal from the external device in accordance with universal serial bus (USB) standard.

A method for controlling an image display apparatus comprising a first connector and a second connector, the method comprising:

• receiving an image signal via the first connector and the second connector, respectively;
• displaying the image signal input via the selected connector when one of the first connector and the second connector is selected;
• and
• via a specific request, stopping displaying of the received image signal from the second connector when the image signal input via the first connector is selected for display;
• wherein the data transmission line which connects a data line of the second connector to an external device is disabled or is converted to a disabled state,
• wherein the second connector comprises a universal serial bus (USB) connector and receives the image signal from the external device in accordance with universal serial bus (USB) standard.

An image display apparatus, comprising:

• a first connector and a second connector which receive an image signal, respectively;
• a display unit which selectively displays the image signal input via the first connector and the second connector;
• a power switch which supplies a driving power to the second connector;
• and
• a controller which causes an external device connected via the second connector to stop transmitting the image signal input via the second connector by controlling the power switch to cut off the driving power when the image signal input via the first connector is selected for display,
• wherein the power switch first cuts off the driving power to the second connector and then the external device connected via the second connector is caused to stop transmitting the image signal,
• wherein the second connector comprises a universal serial bus (USB) connector and receives the image signal from the external device in accordance with universal serial bus (USB) standard.