Organic electroluminescent display element, finder screen display device, finder and optical device
First Claim
1. An organic electroluminescent display element comprising:
- a positive electrode, an organic luminescent film, an electron injection layer and a negative electrode;
wherein each of said positive and negative electrodes, the organic luminescent film, and the electron injection layer is transparent so that a portion of said element has a visible light transmittance of 70% or more, and said electron injection layer is made of an organic metal salt containing an alkali metal or an alkaline earth metal as a metal, or an organic metal complex containing an alkali metal or an alkaline earth metal as a metal, said organic metal complex being at least a complex selected from the group consisting of acetylacetonate complexes, α
-nitroso-β
-naphthol complexes, salicylaldoxime complexes, cupferron complexes, benzoinoxime complexes, bipyridine complexes, phenanthroline complexes, crown complexes, proline complexes and benzoylacetone complexes.
4 Assignments
0 Petitions
Accused Products
Abstract
An organic electroluminescent display element has at least a positive electrode, an organic luminescent film, an electron injection layer and a negative electrode. Each of the positive and negative electrodes is formed of a transparent conductive film, the electron injection layer is formed of a thin transparent film made of a halogenide of an alkali metal or an alkaline earth metal, or an organic metal complex containing an alkali metal or an alkaline earth metal as a metal, and the organic metal complex is at least one complex selected from the group consisting of acetylacetonate complexes, α-nitroso-β-naphthol complexes, salicylaldoxime complexes, cupferron complexes, benzoinoxime complexes, bipyridine complexes, phenanthroline complexes, crown complexes, proline complexes and benzoylacetone complexes.
125 Citations
13 Claims
-
1. An organic electroluminescent display element comprising:
-
a positive electrode, an organic luminescent film, an electron injection layer and a negative electrode;
wherein each of said positive and negative electrodes, the organic luminescent film, and the electron injection layer is transparent so that a portion of said element has a visible light transmittance of 70% or more, and said electron injection layer is made of an organic metal salt containing an alkali metal or an alkaline earth metal as a metal, or an organic metal complex containing an alkali metal or an alkaline earth metal as a metal, said organic metal complex being at least a complex selected from the group consisting of acetylacetonate complexes, α
-nitroso-β
-naphthol complexes, salicylaldoxime complexes, cupferron complexes, benzoinoxime complexes, bipyridine complexes, phenanthroline complexes, crown complexes, proline complexes and benzoylacetone complexes.- View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An organic electroluminescent display element comprising:
-
a positive electrode, an organic luminescent film, an electron injection layer and a negative electrode;
wherein said negative electrode is a thin film made of a metal having a thickness of 1 to 10 nm and said electron injection layer is made of an organic metal salt containing an alkali metal or an alkaline earth metal as a metal, or an organic metal complex containing an alkali metal or an alkaline earth metal as a metal, said organic metal complex comprising at least one complex selected from the group consisting of acetylacetonate complexes, α
-nitroso-β
-naphthol complexes, salicylaldoxime complexes, cupferron complexes, benzoinoxime complexes, bipyridine complexes, phenanthroline complexes, crown complexes, proline complexes and benzoylacetone complexes.- View Dependent Claims (9, 10)
-
-
11. An organic electroluminescent display element comprising:
-
a positive electrode, an organic luminescent film, an electron injection layer and a negative electrode;
wherein the electron injection layer and the negative electrode are configured so that the organic luminescent film emits light through the electron injection layer and the negative electrode, and wherein said electron injection layer is made of an organic metal salt containing an alkali metal or an alkaline earth metal as a metal, or an organic metal complex containing an alkali metal or an alkaline earth metal as a metal, said organic metal complex being at least a complex selected from the group consisting of acetylacetonate complexes, α
-nitroso-β
-naphthol complexes, salicylaldoxime complexes, cupferron complexes, benzoinoxime complexes, bipyridine complexes, phenanthroline complexes, crown complexes, proline complexes and benzoylacetone complexes.- View Dependent Claims (12, 13)
-
Specification