Electroluminescent panel and a manufacturing method therefor
AssigneeSanyo Electric Co., Ltd.
InventorsHisashi Abe, Koji Suzukii, Isao Hasegawa
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Abstract
A second planarization insulating layer disposed under an organic EL layer is heat-treated so as to bring the moisture content thereof to an extremely low level. By lowering this moisture content to 77 ng/cm3 or below, an organic EL panel can be realized where the degradation of luminescence characteristics is minimized. As an alternative method of reducing the adverse effect of moisture content on the organic EL layer, a reforming processing or coating processing may be performed on the second planarization insulating layer.
Claims16
A method of manufacturing an electroluminescent panel, the method including:
- forming a first electrode on a substrate;
- forming an insulating layer in the periphery of the first electrode;
- performing a heat treatment on the insulating layer so that a moisture content contained in the insulating layer is substantially lowered;
- forming an electroluminescent layer on the insulating layer;
- and
- forming a second electrode on the electroluminescent layer.
A method of manufacturing an electroluminescent panel, the method including:
- forming a first electrode on a substrate;
- forming an insulating layer in the periphery of the first electrode;
- performing a heat treatment on the insulating layer at temperature of substantially 200° C. to 270° C. and for substantially one to three hours;
- forming an electroluminescent layer on the insulating layer;
- and
- forming a second electrode on the electroluminescent layer.
A method of manufacturing an electroluminescent panel, the method including:
- forming a first electrode on a substrate;
- forming an insulating layer in the periphery of the first electrode;
- performing a reforming processing on the insulating layer so as to reduce hygroscopicity of the insulating layer;
- forming an electroluminescent layer on the insulating layer;
- and
- forming a second electrode on the electroluminescent layer.
A method of manufacturing an electroluminescent panel, the method including:
- forming a first electrode on a substrate;
- forming an insulating layer in the periphery of the first electrode;
- forming a barrier film, made of any one of an SiNx containing layer, a diamond-like carbon containing layer and an Si thin film layer, on the insulating film;
- forming an electroluminescent layer on the barrier film;
- and
- forming a second electrode on the electroluminescent layer.
A method of manufacturing an electroluminescent panel, the method including:
- forming a first electrode on a substrate;
- forming an insulating layer in the periphery of the first electrode;
- forming a coating layer, made of hydrophobic material, on the insulating layer;
- forming an electroluminescent layer on the coating layer;
- and
- forming a second electrode on the electroluminescent layer.
An electroluminescent panel, comprising:
- a first electrode formed on a substrate;
- an insulating layer whose moisture content is substantially 154 ng/cm3 or below, formed in the periphery of said first electrode;
- an electroluminescent layer formed on said insulating layer;
- and
- a second electrode formed on said electroluminescent layer.
Dependencies are inferred from the claim text.