Patent ID: 8502770

Claim:
A display device, capable of connecting to an external host, comprising: a command processing unit, for processing a remote-control command from a remote controller; a command converting unit, for generating a human interface device (HID) command corresponding to the remote-control command; a mode control unit, for determining whether to allow the command converting unit to generate the HID command according to a mode switch command from the remote controller; a universal serial bus (USB) interface, for outputting the HID command to the external host; and a display module, for displaying the image; wherein the external device generates an image in response to the HID command; wherein the remote controller comprises a mode selection button for generating the mode switch command to switch the mode control unit between a first mode and a second mode; wherein the command converting unit is disabled when the mode control unit is in the first mode and is enabled when the mode control unit is in the second mode.