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US 2022/0064527 A1Published application
Quantum dot, lighting emitting element and display device including the same
AssigneesSamsung Display Co., Ltd., Research & Business Foundation Sungkyunkwan University
InventorsSunyoung KWON, Wan Ki BAE, Donghyo HAHM, Keunchan OH, Hyeokjin LEE, Seong-Pil HUH
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Abstract
A quantum dot includes a first core layer and a shell layer surrounding the first core layer, wherein a difference in lattice constants between the first core layer and the shell layer is controlled to be 3% or less. The quantum dot according to an embodiment may be applied to a light emitting element and a display device, thereby providing improved luminous efficiency.
Claims20
A quantum dot comprising:
- a first core layer;
- and
- a shell layer around the first core layer,
- wherein a difference in lattice constants between the first core layer and the shell layer is 3% or less.
1 more element
A light emitting element comprising:
- a first electrode;
- a hole transport region on the first electrode;
- an emission layer on the hole transport region and comprising a plurality of quantum dots;
- an electron transport region on the emission layer;
- and
- a second electrode on the electron transport region,
- wherein the plurality of quantum dots each comprise a first core layer, a second core layer around the first core layer, and a shell layer around the second core layer, and
- a difference in lattice constants between the first core layer and the shell layer is 3% or less.
5 more elements
A display device comprising:
- a display panel;
- and
- a light conversion layer on the display panel and comprising at least one light control unit comprising quantum dots,
- wherein the quantum dots each comprise a first core layer and a shell layer around the first core layer, and have a difference in lattice constants of 3% or less between the shell layer and the first core layer.
1 more element
Dependencies are inferred from the claim text.