| 摘要 |
An optical device is provided which includes a first electrode; a substrate disposed on the first electrode; a plurality of multi-layer film structures disposed on the substrate, and the multi-layer film structure consisted of at least two insulated layer with different reflection index formed alternately; a first semiconductor conductive layer disposed on the substrate to cover the multi-layer film structure; an active layer disposed on the first semiconductor conductive layer; a second semiconductor conductive layer disposed on the active layer; a transparent conductive layer disposed on the second semiconductor conductive layer; and a second electrode disposed on the transparent conductive layer, thereby, the multi-layer structure can increase the light reflective effect or anti-reflective effect within the optical device to improve the light emitting effective.
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