A portable electronic device includes a motherboard including at least one illuminator disposed thereon, a display screen parallel to the motherboard, and a light guide component disposed between the illuminator and the display screen. The light guide component includes a main body attached to a bottom surface of the display screen, and at least one foot portion extending from an edge of the main body corresponding to the at least one illuminator. The main body includes a light output surface facing the display screen. Each foot portion includes a distal end surface facing the illuminator to receive light emitted therefrom.