Portable electronic device, corresponding method for battery status indication by means of a lighting unit and related program product

摘要

A potable electronic device, includes: a display unit; a light emitting unit which is lit to notify an ON state of a power source in a power saving state in which a light of the display unit is turned OFF in the ON state of the power source using a battery; a voltage measuring unit which measures a voltage of the battery; and a lighting control unit which controls a lighting state of the light emitting unit in accordance with the voltage of the battery measured by the voltage measuring unit.