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US 12,010,867 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.
Claims5
An organic electroluminescent display device comprising:
- a substrate;
- a plurality of pixels arranged in a display area on the substrate;
- a peripheral area surrounding the display area on the substrate;
- a thin film transistor arranged in each of the pixels;
- a passivation layer covering the thin film transistor;
- an anode connected to the thin film transistor and arranged on the passivation layer;
- an electric non-conductance layer formed on edges of the anode and surrounding the anode;
- an organic layer configured to emit light and formed on the anode;
- a cathode covering the organic layer;
- a first inorganic layer covering the cathode;
- a resin layer arranged on the first inorganic layer;
- and
- a second inorganic layer covering the resin layer,
- wherein
- the resin layer has a first end and a second end in a part of peripheral area, and
- the first inorganic layer is directly in contact with the second inorganic layer at both the first end and the second end in the part of the peripheral area.
13 more elements
Dependencies are inferred from the claim text.