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US 2026/0255786 A1Published application
Light-emitting element and method for manufacturing same, and display device and method for manufacturing same
AssigneeSharp Display Technology Corporation
InventorsJUN SAKUMA, YASUSHI ASAOKA, Sentaro KIDA, Takahiro ADACHI, Kota ADACHI
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Abstract
A light-emitting element includes an anode, an EML, an ETL, and a cathode. The ETL contains a metal oxide and includes a first area and a second area that exhibits an oxygen vacancy concentration higher than an oxygen vacancy concentration of the first area.
Claims21
A light-emitting element comprising:
- a first electrode and a second electrode;
- a light-emitting layer provided between the first electrode and the second electrode;
- and
- a charge transport layer provided between the first electrode and the light-emitting layer, wherein
- the charge transport layer contains a metal oxide and includes a first area and a second area that has an oxygen vacancy concentration higher than an oxygen vacancy concentration of the first area.
2 more elements
A method for manufacturing a light-emitting element including:
- a first electrode and a second electrode;
- a light-emitting layer provided between the first electrode and the second electrode;
- and a charge transport layer provided between the first electrode and the light-emitting layer, the method comprising:
- forming a charge transport layer containing a metal oxide, as the charge transport layer;
- and
- forming, in a part of the charge transport layer, a second area that has an oxygen vacancy concentration higher than an oxygen vacancy concentration of a first area that is a non-exposed area of the charge transport layer, by exposing the part of the charge transport layer to light to increase oxygen vacancies in an exposed area.
3 more elements
-25. (canceled)
Dependencies are inferred from the claim text.