Display device and method of manufacturing display device
AssigneeJapan Display Inc.
InventorHironori TOYODA
Life of this patent
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Abstract
A display device according to an embodiment of the present invention includes: a substrate; a lower electrode provided above the substrate; an insulating film provided above the lower electrode and having an opening; an organic layer arranged at least partly in the opening and electrically connected to the lower electrode; and an upper electrode electrically connected above the organic layer; the organic layer includes a hole injection layer, the opening includes a first area arranged to a center side, and a second area arranged on an outer side of the first area, and the hole injection layer has a higher p-dopant concentration in the first area than in the second area.
Claims12
A display device comprising:
- a substrate;
- a lower electrode provided above the substrate;
- an insulating film provided above the lower electrode and having an opening;
- an organic layer arranged at least partly in the opening and electrically connected to the lower electrode;
- and
- an upper electrode electrically connected above the organic layer;
- wherein the organic layer includes a hole injection layer,
- the opening includes a first area arranged to a center side, and a second area arranged on an outer side of the first area, and
- the hole injection layer has a higher p-dopant concentration in the first area than in the second area.
A method of manufacturing a display device, the method comprising:
- preparing a substrate;
- forming a lower electrode above the substrate;
- forming an insulating film having an opening, above the lower electrode;
- forming an organic layer arranged at least partly in the opening and electrically connected to the lower electrode;
- and
- forming an upper electrode electrically connected above the organic layer;
- wherein the forming the organic layer includes forming a hole injection layer,
- the opening includes a first area arranged to a center side, and a second area arranged on an outer side of the first area, and
- in the forming the hole injection layer, the hole injection layer is formed in such a way as to have a higher p-dopant concentration in the first area than in the second area.
Dependencies are inferred from the claim text.