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US 12,615,883 B2Granted
Nanorod light emitting element and display device including the same
AssigneeLG Display Co., Ltd.
InventorsYuseop Shin, YongSeok Kwak, MinJae Kang
Life of this patent
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Abstract
A nanorod light emitting element includes a first semiconductor layer having a rod shape, a first active layer covering a first portion of a side surface of the first semiconductor layer, the first portion extending from an upper surface of the first semiconductor layer, a second semiconductor layer covering the first active layer, a second active layer covering a second portion of the side surface, the second portion extending from a lower surface of the first semiconductor layer, and spaced apart from the first active layer, and a third semiconductor layer covering the second active layer and spaced apart from the second semiconductor layer.
Claims18
A nanorod light emitting element, comprising:
- a first semiconductor layer having a rod shape with an upper surface at one end of the rod shape, a lower surface at an opposite end of the rod shape, and a side surface extending along a longitudinal direction of the rod shape from the upper surface to the lower surface;
- a first active layer covering an outer circumferential surface of a first portion of the side surface of the first semiconductor layer, the first portion of the side surface extending from the upper surface of the first semiconductor layer;
- a second semiconductor layer covering an outer circumferential surface of the first active layer;
- a second active layer covering an outer circumferential surface of a second portion of the side surface, the second portion of the side surface extending from the lower surface of the first semiconductor layer, and the second active layer spaced apart from the first active layer;
- and
- a third semiconductor layer covering an outer circumferential surface of the second active layer and spaced apart from the second semiconductor layer.
3 more elements
A display device, comprising:
- a substrate including an active area including a plurality of sub-pixels and a non-active area surrounding the active area;
- a first transistor disposed on the substrate;
- a planarization layer disposed on the first transistor;
- a first alignment line disposed on the planarization layer;
- a second alignment line positioned on both sides of the first alignment line;
- a first insulating layer covering the second alignment line;
- a nanorod light emitting element disposed on the first alignment line and the first insulating layer,
- wherein the nanorod light emitting element comprises:
- a first semiconductor layer having a rod shape with an upper surface at one end of the rod shape, a lower surface at an opposite end of the rod shape, and a side surface extending along a longitudinal direction of the rod shape from the upper surface to the lower surface;
- a first active layer covering an outer circumferential surface of a first portion of the side surface of the first semiconductor layer, the first portion of the side surface extending from the upper surface of the first semiconductor layer;
- a second semiconductor layer covering an outer circumferential surface of the first active layer;
- a second active layer covering an outer circumferential surface of a second portion of the side surface, the second portion of the side surface extending from the lower surface of the first semiconductor layer, and the second active layer spaced apart from the first active layer;
- and
- a third semiconductor layer covering an outer circumferential surface of the second active layer and spaced apart from the second semiconductor layer;
- a second insulating layer disposed on the nanorod light emitting element and exposing one of the second semiconductor layer and the third semiconductor layer;
- and
- a first connection line connecting the first transistor and the one of the second semiconductor layer and the third semiconductor layer.
14 more elements
A display device, comprising:
- a substrate;
- and
- a plurality of sub-pixels disposed on the substrate,
- wherein one of the plurality of sub-pixels comprises a plurality of nanorod light emitting elements, and
- wherein the nanorod light emitting element comprises:
- a first semiconductor layer having a rod shape with an upper surface at one end of the rod shape, a lower surface at an opposite end of the rod shape, and a side surface extending along a longitudinal direction of the rod shape from the upper surface to the lower surface;
- a first active layer covering an outer circumferential surface of a first portion of the side surface of the first semiconductor layer, the first portion of the side surface extending from the upper surface of the first semiconductor layer;
- a second semiconductor layer covering an outer circumferential surface of the first active layer;
- a second active layer covering an outer circumferential surface of a second portion of the side surface, the second portion of the side surface extending from the lower surface of the first semiconductor layer, and the second active layer spaced apart from the first active layer;
- and
- a third semiconductor layer covering an outer circumferential surface of the second active layer and spaced apart from the second semiconductor layer.
8 more elements
Dependencies are inferred from the claim text.