Light emitting device and projector
AssigneesSeiko Epson Corporation, Sophia School Corporation
InventorsHiroyasu Kaseya, Takafumi Noda, Katsumi Kishino
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Abstract
A light emitting device includes a laminated structure having a plurality of columnar parts, wherein the columnar part includes a first semiconductor layer, a second semiconductor layer different in conductivity type from the first semiconductor layer, and a third semiconductor layer disposed between the first semiconductor layer and the second semiconductor layer, the third semiconductor layer includes a light emitting layer, and the second semiconductor layer includes a first portion, and a second portion which surrounds the first portion in a plan view from a laminating direction of the first semiconductor layer and the light emitting layer, and is lower in impurity concentration than the first portion.
Claims11
A light emitting device comprising:
- a substrate;
- and
- a laminated structure having a plurality of columnar parts, wherein
- the columnar part includes
- a first semiconductor layer,
- a second semiconductor layer different in conductivity type from the first semiconductor layer, and
- a third semiconductor layer disposed between the first semiconductor layer and the second semiconductor layer,
- the third semiconductor layer includes a light emitting layer, and
- the second semiconductor layer includes
- a first portion, and
- a second portion which surrounds the first portion in a plan view from a laminating direction of the first semiconductor layer and the light emitting layer, and is lower in impurity concentration than the first portion, wherein
- the first semiconductor layer, the light emitting layer and the second semiconductor layer are disposed in this order from the substrate.
Dependencies are inferred from the claim text.