Display device and method for operating same
AssigneeLG Electronics Inc.
InventorJinyoung Choi
Life of this patent
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Abstract
A display device according to an embodiment of the present invention can comprise: a display unit; an external device interface unit for exchanging information with a set-top box; and a control unit which receives set-top box information from the set-top box by means of the external device interface unit, determines whether or not a high definition multimedia interface-consumer electronics control (HDMI-CEC) function is turned on on the basis of the received set-top box information, and automatically turns on an HDMI-CEC function of the display device if the HDMI-CEC function is turned on.
Claims16
A display device comprising:
- a display;
- an external device interface;
- and
- a controller configured to:
- connect with a set-top box through the external device interface,
- transmit display device information to the set-top box through the external device interface, wherein the display device information indicates that a High Definition Multimedia Interface-Consumer Electronics Control (HDMI-CEC) function of the display device is turned off, wherein the HDMI-CEC function is a function to control the set-top box, which is connected to an HDMI terminal included in the external device interface, by a remote control device of the display device,
- receive set-top box information from the set-top box through the external device interface, wherein the set-top box information includes a CEC field indicating whether a HDMI-CEC function of the set-top box is turned on or off,
- in response to the CEC field indicating the HDMI-CEC function of the set-top box is turned on, turn on the HDMI-CEC function of the display device, and
- in response to the CEC field indicating the HDMI-CEC function of the set-top box is turned off, maintain the HDMI-CEC function of the display device to be turned off,
- wherein the controller is further configured to:
- receive a power-on command from the set-top box when a power of the set-top box is turned on,
- turn on a power of the display device according to the received power-on command and when the HDMI-CEC function of the display device is turned on,
- receive a power-off command from the set-top box when the power of the set-top box is turned off, and
- turn off the power of the display device according to the received power-off command and when the HDMI-CEC function of the display device is turned on.
A method of operating a display device, the method comprising:
- connecting with a set-top box through an external device interface of the display device;
- transmitting, via a controller of the display device, display device information to the set-top box through the external device interface, wherein the display device information indicates that a High Definition Multimedia Interface-Consumer Electronics Control (HDMI-CEC) function of the display device is turned off, wherein the HDMI-CEC function is a function to control the set-top box, which is connected to an HDMI terminal included in the external device interface, by a remote control device of the display device;
- receiving, via the controller, set-top box information from the set-top box through the external device interface, wherein the set-top box information includes a CEC field indicating whether a HDMI-CEC function of the set-top box is turned on or off;
- in response to the CEC field indicating the HDMI-CEC function of the set-top box is turned on, turning on, via the controller, the HDMI-CEC function of the display device;
- and
- in response to the CEC field indicating the HDMI-CEC function of the set-top box is turned off, maintaining, via the controller, the HDMI-CEC function of the display device to be turned off,
- wherein the method further comprises:
- receiving a power-on command from the set-top box when a power of the set-top box is turned on;
- turning on a power of the display device according to the received power-on command and when the HDMI-CEC function of the display device is turned on;
- receiving a power-off command from the set-top box when the power of the set-top box is turned off;
- and
- turning off the power of the display device according to the received power-off command and when the HDMI-CEC function of the display device is turned on.
Dependencies are inferred from the claim text.