Portable computer and controlling method thereof

摘要

A portable computer having a main body and a display panel hingedly attached to the main body, including an open/closed sensor to output open and closed detection signals in response to the display panel being open and closed, respectively; a power supply to supply a driving power to the display panel; and a controller to identify a predetermined power state in response to receiving the closed detection signal from the open/closed sensor, and to control the driving power to the display panel to be interrupted in response to the power state not being set to a low-power state.