LIGHT EMITTING DIODE HAVING COLUMNS FOR LIGHT EXTRACTION AND METHOD OF FABRICATING THE SAME

摘要

The present invention relates to a light emitting diode having columns for light extraction and a method of fabricating the light emitting diode. The light emitting diode comprises a first conductive type (Al, In, Ga)N semiconductor layer, a second conductive type (Al, In, Ga)N semiconductor layer positioned on one region of the first conductive type semiconductor layer, an active layer interposed between the first and second conductive type semiconductor layers. Additionally, columns for light extraction are positioned on other region of the first conductive type semiconductor layer. The columns for light extraction reduce light loss due to internal reflection, thereby enhancing light extraction efficiency.