A light emitting diode (LED) device includes: a substrate having a central portion; an LED chip unit formed on the central portion of the substrate; a circuit pattern having a positive electrode and a negative electrode that are formed on the substrate, each of the positive electrode and the negative electrode including an arc portion and at least one extending portion that extends from the arc portion toward the central portion; a wire unit connecting the LED chip unit to the extending portions; a glass layer disposed on the substrate, covering the arc portions and including an opening unit that is aligned with the central portion of the substrate; a dam structure formed on the glass layer and extending along the arc portions; and an encapsulated body disposed substantially within the dam structure to cover the extending portions, the wire unit and the LED chip unit.