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US07755097B2 Light emitting device having light extraction structure and method for manufacturing the same 有权
具有光提取结构的发光器件及其制造方法

Light emitting device having light extraction structure and method for manufacturing the same
Abstract:
A light emitting device having a light extraction structure, which is capable of achieving an enhancement in light extraction efficiency and reliability, and a method for manufacturing the same. The light emitting device includes a semiconductor layer having a multi-layered structure including a light emission layer; and a light extraction structure formed on the semiconductor layer in a pattern having unit structures. Further, the wall of each of the unit structures is sloped at an angle of −45° to +45° from a virtual vertical line being parallel to a main light emitting direction of the light emitting device.
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