Organic el element, organic el display panel, and organic el display panel manufacturing method
AssigneeJoled Inc.
InventorsJun YAMAGUCHI, Kenji HARADA, Masahiro TANAKA
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Abstract
An organic electro-luminescence (EL) element includes a first electrode, a light emitting layer, and a second electrode layered in this order above a substrate. At least one of the first electrode and the second electrode is a light transmissive electrode. The light transmissive electrode includes a base metal layer and a silver thin film. The base metal layer is a metal layer including an alkali metal or an alkaline earth metal as a material. The silver thin film is silver or a silver alloy including silver as a main component, and is disposed on and in contact with the base metal layer.
Claims13
An organic electro-luminescence (EL) element comprising:
- a first electrode, a light emitting layer, and a second electrode layered in this order above a substrate, wherein
- at least one of the first electrode and the second electrode is a light transmissive electrode, and
- the light transmissive electrode includes a base metal layer which is a metal layer including an alkali metal or an alkaline earth metal as a material and a silver thin film, which is silver or a silver alloy including silver as a main component, disposed on and in contact with the base metal layer.
An organic electro-luminescence (EL) display panel comprising a substrate and multiple organic EL elements above the substrate, wherein
- each of the organic EL elements comprises a first electrode, a light emitting layer, and a second electrode layered in this order above the substrate,
- at least one of the first electrode and the second electrode is a light transmissive electrode, and
- the light transmissive electrode includes a base metal layer which is a metal layer including an alkali metal or an alkaline earth metal as a material and a silver thin film, which is silver or a silver alloy including silver as a main component, disposed on and in contact with the base metal layer.
A method of manufacturing an organic electro-luminescence (EL) element comprising a light reflective pixel electrode, a light emitting layer, and a light transmissive counter electrode layered in this order above the substrate, the method comprising:
- forming the counter electrode, including
- forming a base metal layer which is a metal layer including an alkaline metal or an alkaline earth metal as a material, and
- forming a silver thin film, which is silver or a silver alloy including silver as a main component, after forming the base metal layer.
A method of manufacturing an organic electro-luminescence (EL) element comprising a light transmissive pixel electrode, a light emitting layer, and a light reflective counter electrode layered in this order above a substrate, the method comprising:
- forming the pixel electrode, including
- forming a base metal layer which is a metal layer including an alkaline metal or an alkaline earth metal as a material, and
- forming a silver thin film, which is silver or a silver alloy including silver as a main component, after forming the base metal layer.
Dependencies are inferred from the claim text.