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US 10,319,947 B2Granted
OLED with a flattening layer between two barrier layers
AssigneeJapan Display Inc.
InventorsDaisuke Kato, Kaichi Fukuda
Life of this patent
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Abstract
According to one embodiment, an organic semiconductor device includes a supporting substrate, a plurality of organic EL light emitting elements, a first barrier layer, a flattening layer, and a second barrier layer. The flattening layer exists sporadically and makes gentle in inclination steep elevation change present in the surface of the first barrier layer. The first barrier layer and the second barrier layer are made of moisture penetration preventive material.
Claims7
An organic electroluminescent display device comprising:
- a substrate comprising an active area in which a plurality of organic electroluminescent light emitting elements are disposed, and an outside area surrounding the active area;
- a resin layer on the substrate;
- a first inorganic insulating layer on the resin layer;
- a second inorganic insulating layer on the first inorganic insulating layer;
- and
- an organic material between the first inorganic insulating layer and the second inorganic insulating layer,
- wherein
- in the outside area,
- the first inorganic insulating layer comprises a first flat surface and an inclined surface extending from the first flat surface,
- the organic material is formed to be in contact with a first portion of the first flat surface and a first portion of the inclined surface, and
- the second inorganic insulating layer is in contact with each of a second portion of the first flat surface and a second portion of the inclined surface.
8 more elements
Dependencies are inferred from the claim text.