| 摘要 |
To improve light extraction efficiency of a light emitting device, the light emitting device includes: a first electrode; a second electrode provided on a light extraction side; an emission layer formed between the first electrode and the second electrode; a reflection surface located on the first electrode with respect to the emission layer; and a periodic structure at a node of interference generated by light emitted from the emission layer and light emitted from the emission layer to the reflection surface side and reflected on the reflection surface. The periodic structure is for diffracting light generated in the emission layer and guided in an in-plane direction of the light emitting device in a direction to the second electrode, and for extracting the light to the outside of the light emitting device.
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