| 摘要 |
PURPOSE: A light emitting device is provided to repair or replace a unit of each light emitting diode on a substrate by including a light emitting unit which is bonded on or separated from the substrate. CONSTITUTION: A light emitting unit(120) has a cylindrical shape. A metal layer(121) comprises a connection unit(121A) on an outer surface thereof. An insulation layer is formed on the metal layer. The copper foil is formed on the insulation layer. A solder resist layer is formed on the copper foil layer. The light emitting diode is mounted on the copper foil layer. The outer surface of each layer has a circular shape.
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