Display device
AssigneeJapan Display Inc.
InventorHiroshi TABATAKE
Life of this patent
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Abstract
According to one embodiment, a display device includes a substrate, an insulating layer, a lower electrode, a rib including an aperture and covering a periphery of the lower electrode, a partition above the rib, an upper electrode being in contact with the partition, and an organic layer between the electrodes. The organic layer includes a first organic layer that is in contact with the lower electrode through the aperture, and a second organic layer on the partition. At least a part of the periphery of the lower electrode is located between the insulating layer and the partition in a thickness direction of the insulating layer.
Claims20
A display device comprising:
- a substrate;
- a pixel circuit overlapping the substrate;
- an insulating layer on the pixel circuit and including a contact hole;
- a first lower electrode and a second lower electrode on the insulating layer and arranged in a second direction crossing at a right angle to a third direction normal to an upper surface of the substrate, the first lower electrode being connected to the pixel circuit at the contact hole;
- a first upper electrode opposing the first lower electrode in the third direction;
- a second upper electrode opposing the second lower electrode in the third direction;
- a first organic layer located between the first lower electrode and the first upper electrode and including a first light-emitting layer;
- a second organic layer located between the second lower electrode and the second upper electrode and including a second light-emitting layer;
- a rib formed of a first inorganic material on the first lower electrode and the second lower electrode and including
- a first pixel aperture overlapping the first lower electrode in a plan view, and
- a second pixel aperture overlapping the second lower electrode in the plan view;
- a partition located between the first pixel aperture and the second pixel aperture in the plan view, the partition including
- a lower portion on the rib, and
- an upper portion on the lower portion and extending beyond a side surface of the lower portion in the second direction,
- wherein
- the first light-emitting layer emits a light of a first color,
- the second light-emitting layer emits a light of a second color different from the first color,
- the first organic layer includes
- a first portion in contact with the first lower electrode at the first pixel aperture, and
- a second portion located on the partition and spaced apart from the first portion,
- the second organic layer includes
- a third portion in contact with the second lower electrode at the second pixel aperture, and
- a fourth portion located on the partition and spaced apart from the third portion,
- the lower portion of the partition includes a first side surface and a second side surface, the first side surface being closer to the first pixel aperture compared to the second side surface in the second direction,
- the rib includes a first step and a second step located between the first lower electrode and the second lower electrode in the second direction,
- the first step of the rib is closer to the first lower electrode compared to the second step of the rib in the second direction, and
- the first step and the second step are located between the first side surface of the lower portion of the partition and the second side surface of the lower portion of the partition in the second direction.
Dependencies are inferred from the claim text.