Back to results
US 12,593,560 B2Granted
Light-emitting element and display device
AssigneeSharp Kabushiki Kaisha
InventorRyo Kitamura
Life of this patent
Estimating the term…
Abstract
In order to realize a light-emitting element having high luminous efficiency in a light-emitting device with quantum dots, the light-emitting element including a hole transport layer and a light-emitting layer including a quantum dot luminescent body, the hole transport layer and the light-emitting layer being layered on each other is provided. The hole transport layer includes a compound of one or more of Cu+, Ag+, and Au+, and one or more of I−, SCN−, SeCN−, and CN−.
Claims6
A light-emitting element comprising:
- a hole transport layer;
- a light-emitting layer including a quantum dot luminescent body, the hole transport layer and the light-emitting layer being layered on top of each other;
- and
- an intermediate layer between the hole transport layer and the light-emitting layer,
- wherein the hole transport layer includes a compound of one or more of Cu+, Ag+, and Au+, and one or more of I−, SCN−, SeCN−, and CN−,
- wherein a thickness of the intermediate layer is 1 nm or more and 10 nm or less,
- wherein the intermediate layer is an insulating layer not including a metal oxide,
- wherein the insulating layer includes a nitride of a substance including one or more of Nb, Mg, Ta, Y, La, and Sr, or a carbide of a substance including one or more of Ti, Nb, Si, Mg, Ta, Hf, Zr, Y, La, and Sr, and
- wherein the insulating layer further includes a non-conductive organic polymer.
6 more elements
A light-emitting element comprising:
- a hole transport layer;
- a light-emitting layer including a quantum dot luminescent body, the hole transport layer and the light-emitting layer being layered on top of each other;
- and
- an intermediate layer between the hole transport layer and the light-emitting layer,
- wherein the hole transport layer includes a compound of one or more of Cu+, Ag+, and Au+, and one or more of I−, SCN−, SeCN−, and CN−,
- wherein the intermediate layer is an insulating layer not including a metal oxide, and
- wherein the insulating layer includes a non-conductive organic polymer and includes a nitride of a substance including one or more of Nb, Mg, Ta, Y, La, and Sr, or a carbide of a substance including one or more of Ti, Nb, Si, Mg, Ta, Hf, Zr, Y, La, and Sr.
4 more elements
Dependencies are inferred from the claim text.