| 摘要 |
<p>Disclosed are a light emitting device and a light emitting device package. The light emitting device includes a substrate (110) including a plurality of patterns (120), each pattern including three protrusion parts (120a,b,c), a plurality of spaces formed between the patterns, and a light emitting device structure over the patterns and the spaces. Each space includes a medium having a refractive index different from a refractive index of the light emitting device structure The medium may be air.</p> |
