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US 12,114,521 B2Granted
Light-emitting element and display device
AssigneeSharp Kabushiki Kaisha
InventorsTakayuki Naka, Yoshihiro Ueta, Noboru Iwata
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Abstract
A light-emitting element is provided with an anode, a light-emitting layer including quantum dots, and a cathode. The light-emitting element includes: an electron transport layer provided between the cathode and the light-emitting layer; and a hole tunneling insulating layer provided between the anode and the light-emitting layer and in contact with the anode and the light-emitting layer.
Claims25
A light-emitting element provided with
- an anode,
- a light-emitting layer including quantum dots, and
- a cathode,
- the light-emitting element comprising:
- an electron transport layer provided between the cathode and the light-emitting layer;
- and
- a hole tunneling insulating layer provided between the anode and the light-emitting layer and in contact with the anode and the light-emitting layer, wherein
- the hole tunneling insulating layer includes a plurality of layers composed of different materials.
5 more elements
A light-emitting element provided with
- an anode,
- a light-emitting layer including quantum dots, and
- a cathode, the light-emitting element comprising:
- an electron transport layer provided between the cathode and the light-emitting layer and in contact with the cathode and the light-emitting layer;
- and
- a hole tunneling insulating layer provided between the anode and the light-emitting layer and in contact with the anode and the light-emitting layer, wherein
- the electron transport layer includes magnesium zinc oxide, and
- the electron transport layer is formed of nanoparticles.
5 more elements
Dependencies are inferred from the claim text.