Light emitting element, light emitting device, and method for manufacturing light emitting element
AssigneeKabushiki Kaisha Toshiba
InventorsMasaaki OGAWA, Yasuhisa OHMURO
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Abstract
According to embodiment, a light emitting element includes a light emitting layer having a first major surface and a second major surface, a first electrode provided on the first major surface side of the light emitting layer, and a second electrode provided on the second major surface side of the light emitting layer and having a basic outline. Furthermore, the light emitting element includes a current blocking portion provided between the first electrode and the light emitting layer or between the second electrode and the light emitting layer, and has an outline with a protrusion-depression pattern with respect to a virtual outline similar in shape to the basic outline of the second electrode.
Claims20
A light emitting element comprising:
- a light emitting layer having a first major surface and a second major surface;
- a first electrode provided on the first major surface side of the light emitting layer;
- a second electrode provided on the second major surface side of the light emitting layer and having a basic outline;
- and
- a current blocking portion provided between the first electrode and the light emitting layer or between the second electrode and the light emitting layer and having an outline with a protrusion-depression pattern with respect to a virtual outline similar in shape to the basic outline of the second electrode.
A light emitting device comprising:
- a light emitting element including a light emitting layer having a first major surface and a second major surface, a first electrode provided on the first major surface side of the light emitting layer, a second electrode provided on the second major surface side of the light emitting layer and having a basic outline, and a current blocking portion provided between the first electrode and the light emitting layer or between the second electrode and the light emitting layer and having an outline with a protrusion-depression pattern with respect to a virtual outline similar in shape to the basic outline of the second electrode;
- a resin layer provided so as to cover the light emitting element;
- a first lead frame electrically connected to the first electrode of the light emitting element;
- and
- a second lead frame electrically connected to the second electrode of the light emitting element.
A method for manufacturing a light emitting element, comprising:
- forming a semiconductor stacked body including a light emitting layer on upper side of a semiconductor substrate;
- and
- forming a current blocking portion on upper side of the semiconductor stacked body, the current blocking portion having an outline with a protrusion-depression pattern with respect to a virtual outline similar in shape to a basic outline of an electrode provided on a second major surface side opposite to a first major surface side of the light emitting layer.
Dependencies are inferred from the claim text.