FIELD: electrical communication engineering.
SUBSTANCE: invention relates to power management of a display device. Portable device, a display apparatus, a display system, and a method for controlling power of a display apparatus thereof are provided, wherein the method includes: sensing, while the portable device operates in a standby mode, a movement of the portable device using a motion sensor, converting, using the portable device, the standby mode of the portable device into a normal mode in response to the movement of the portable device being sensed, generating, using the portable device, a pre-power on signal in response to the standby mode being converted into the normal mode, transmitting the pre-power on signal to the display apparatus and activating, by the display apparatus, some elements of the display apparatus in response to the pre-power on signal being received.
EFFECT: technical result is to provide fast power-up of the display device from a remote control panel.
13 cl, 12 dwg
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