Light emitting device

Provided are a light emitting device, a light emitting device package, and a lighting system. The light emitting device comprises a first conductive type first semiconductor layer, an active layer, a second conductive type second semiconductor layer, a reliability enhancement layer, and a second con...

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Main Authors PARK, JOONG-SEO, LEE, SANG-JUN, CHOI, RAK-JUN, JUNG, SUNG-HOON, MOON, YONG-TAE, SONG, YONG-SEON, OH, JEONG-TAK
Format Patent
LanguageChinese
English
Published 16.01.2013
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:Provided are a light emitting device, a light emitting device package, and a lighting system. The light emitting device comprises a first conductive type first semiconductor layer, an active layer, a second conductive type second semiconductor layer, a reliability enhancement layer, and a second conductive type third semiconductor layer. The active layer is disposed on the first conductive type first semiconductor layer. The second conductive type second semiconductor layer is disposed on the active layer. The reliability enhancement layer is disposed on the second conductive type second semiconductor layer. The second conductive type third semiconductor layer is disposed on the reliability enhancement layer and comprises a light extraction pattern. The reliability enhancement layer and the active layer are spaced apart from each other by a distance of 0.3 m to 5 m.
Bibliography:Application Number: TW20121103530