LIGHT EMITTING DEVICE AND BACK LIGHT SYSTEM USING THE SAME

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PROBLEM TO BE SOLVED : To provide a light emitting device capable of preventing reaction of a silver part and a nano crystal phosphor of a light emitting device from discoloring a substrate and preventing reduction of light emission efficiency. SOLUTION : The light emitting device including a light emitting element emitting primary light and a wavelength conversion part for absorbing a part of the primary light to emit secondary light on the light emitting element. The wavelength conversion part consists of a plurality of resin layers comprising a first wavelength conversion part formed of at least a resin layer including a rare earth activation phosphor or a transition metal element activation phosphor and a second wavelength conversion part formed of a resin layer including a nano crystal phosphor, and the first wavelength conversion part is arranged on a side closer to the light emitting element than the second wavelength conversion part. COPYRIGHT : (C)2013, JPO&INPIT