Display device and communication method
OwnerHiroyuki Kasugainventor
Life of this patent
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Abstract
A display device is used for displaying a video image signal inputted from a signal source which is connected to the display device and is provided outside the display device. The display device includes: a presence sensor which detects whether a person exists within a target range where the display device performs detection; a control unit which changes an operation mode according to a detection result of the presence sensor, and controls a supply amount of electric power supplied to components of the display device according to the changed operation mode; and a communication interface unit which transmits to the signal source, information of the detection result of the presence sensor in a state in which the amount of power supply is controlled by the control unit.
Claims7
A display device for displaying a video image signal inputted from a signal source which is connected to the display device and is positioned outside the display device, the display device comprising:
- a presence sensor which detects whether a person exists within a target range where the display device performs detection;
- a control unit which changes an operation mode according to a detection result of the presence sensor, and controls a supply amount of electric power supplied to components of the display device according to the changed operation mode;
- and
- a communication interface unit which transmits to the signal source, information of the detection result of the presence sensor in a state in which the amount of power supply is controlled by the control unit.
A communication method for a display device displaying a video image signal inputted from a signal source which is connected to the display device and is provided outside the display device, the communication method comprising:
- detecting whether a person exists within a target range where the display device performs detection to obtain a detection result;
- changing an operation mode according to the detection result, and controlling a supply amount of electric power supplied to components of the display device according to the changed operation mode;
- and
- transmitting, to the signal source, information of the detection result in a state in which the amount of power supply is controlled.
Dependencies are inferred from the claim text.