Electronic device for minimizing standby power based on user usage time and control method thereof

A method controlling of an electronic paper display device, the method comprising:

• controlling, by a first processor of the electronic paper display device, an infrared (IR) communication module and a radio frequency (RF) communication module of the electronic paper display device, the first processor being activated by receiving power supplied by a main power supply during a general mode of the electronic paper display device;
• based on a first condition being satisfied during the general mode, switching, by the first processor, the electronic paper display device from the general mode to a low power mode by controlling a sub-power supply to supply power to a second processor of the electronic paper display device to activate the second processor and controlling the main power supply to stop supply of power from the main power supply to deactivate the first processor and the RF communication module;
• controlling, by the second processor, the IR communication module during the low power mode, the second processor being activated by receiving power provided from the sub-power supply during the low power mode;
• and
• based on a second condition being satisfied during the low power mode, switching, by the second processor, the electronic paper display device from the low power mode to the general mode by supplying power to the first processor and the RF communication module.

A non-transitory computer-readable recording medium storing a program that executed to perform a method of controlling an electronic paper display device, the method comprising:

• controlling, by a first processor of the electronic paper display device, an infrared (IR) communication module and a radio frequency (RF) communication module of the electronic paper display device, the first processor being activated by receiving power supplied by a main power supply during a general mode of the electronic paper display device;
• based on a first condition being satisfied during the general mode, switching, by the first processor, the electronic paper display device from the general mode to a low power mode by controlling a sub-power supply to supply power to a second processor of the electronic paper display device to activate the second processor and controlling the main power supply to stop supply of power from the main power supply to deactivate the first processor and the RF communication module during the low power mode;
• controlling, by the second processor, the IR communication module during the low power mode, the second processor being activated by receiving power provided from the sub-power supply during the low power mode;
• and
• based on a second condition being satisfied during the low power mode, switching, by the second processor, the electronic paper display device from the low power mode to the general mode by supplying power to the first processor and the RF communication module.