Light-emitting element
AssigneeSharp Kabushiki Kaisha
InventorKENJI KIMOTO
Life of this patent
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Abstract
A light-emitting element includes: a first electrode which is an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a second electrode which is a cathode in this order; and an oxide layer which is a first oxide layer and an oxide layer which is a second oxide layer disposed in this order from the first electrode side between the hole transport layer and the light-emitting layer or between the light-emitting layer and the electron transport layer, wherein a density of oxygen atoms in the second oxide layer is different from a density of oxygen atoms in the first oxide layer.
Claims29
A light-emitting element, comprising:
- an anode, a hole transport layer, a light-emitting layer, an electron transport layer, and a cathode in this order;
- and
- a first oxide layer and a second oxide layer that is in contact with the first oxide layer disposed in this order from a side closer to the anode one of between the hole transport layer and the light-emitting layer, and between the light-emitting layer and the electron transport layer,
- wherein an oxygen atom density of the second oxide layer is different from an oxygen atom density of the first oxide layer.
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Dependencies are inferred from the claim text.