| 摘要 |
In one aspect of the invention, an LED includes a substrate, an n-type semiconductor layer, a light emitting layer, a p-type semiconductor layer and a transparent conductive layer sequentially stacked on the substrate, and p-type and n-type electrodes. The p-type semiconductor layer has a rough surface region and at least one flat surface region. The transparent conductive layer has a rough surface region and a flat surface region corresponding to the rough surface region and the at least one flat surface region of the p-type semiconductor layer, respectively. The p-type electrode is disposed on the flat surface region of the transparent conductive layer. The n-type electrode is electrically couple to the n-type semiconductor layer.
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