Light-emitting device, manufacturing method therefor, and display apparatus
AssigneeSamsung Display Co., Ltd.
InventorsHyung Rae Cha, Dong Uk Kim, Se Young Kim
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Abstract
A light-emitting device includes: a light-emitting device core including a first semiconductor layer, a second semiconductor layer on the first semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer; an electrode layer on the second semiconductor layer of the light-emitting device core, and an insulating film around a side surface of the light-emitting device core, wherein a side surface of the electrode layer protrudes outward from a side surface of the second semiconductor layer.
Claims24
A light-emitting device comprising:
- a light-emitting device core comprising a first semiconductor layer, a second semiconductor layer on the first semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer;
- an electrode layer on the second semiconductor layer of the light-emitting device core;
- and
- an insulating film around a side surface of the light-emitting device core,
- wherein a side surface of the electrode layer protrudes outwardly from a side surface of the second semiconductor layer, and
- wherein a minimum diameter of the second semiconductor layer is greater than a maximum diameter of the first semiconductor layer.
A manufacturing method for a light-emitting device, the method comprising:
- forming a light-emitting device core and an electrode layer on a substrate, the electrode layer being on the light-emitting device core;
- and
- forming an insulating film around a side surface of the light-emitting device core,
- wherein the forming of the light-emitting device core and the electrode layer comprises forming the electrode layer having a side surface that protrudes outwardly from the side surface of the light-emitting device core,
- wherein the light-emitting device core comprises:
- a first semiconductor layer on the substrate;
- a second semiconductor layer between the first semiconductor layer and the electrode layer;
- and
- an active layer between the first semiconductor layer and the second semiconductor layer,
- wherein one surface of the electrode layer adjacent the second semiconductor layer includes a first region overlapping the second semiconductor layer and a second region that does not overlap the second semiconductor layer,
- wherein the insulating film is on the second region, and
- wherein a minimum diameter of the second semiconductor layer is greater than a maximum diameter of the first semiconductor layer.
A display apparatus comprising:
- a substrate;
- a first electrode on the substrate;
- a second electrode on the substrate and spaced from the first electrode;
- and
- a light-emitting device between the first electrode and the second electrode and electrically connected to the first electrode and the second electrode,
- wherein the light-emitting device comprises:
- a light-emitting device core comprising a first semiconductor layer, a second semiconductor layer on the first semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer;
- an electrode layer on the second semiconductor layer of the light-emitting device core;
- and
- an insulating film around a side surface of the light-emitting device core,
- wherein a side surface of the electrode layer protrudes outwardly from a side surface of the second semiconductor layer, and
- wherein a minimum diameter of the second semiconductor layer is greater than a maximum diameter of the first semiconductor layer.
Dependencies are inferred from the claim text.