Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Patent
1990-07-03
1991-10-22
O'Shea, Sandra L.
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
25230126, 428690, 428917, H05B 3314, C09K 1106, B32B 1900
Patent
active
050598635
ABSTRACT:
An organic electroluminescent device having an organic hole injection transport layer and an organic luminescent layer formed between two conductive layers constituting electrodes, wherein the organic luminescent layer contains a compound selected from the group consisting of a compound of the following formula (I): ##STR1## wherein each of A and B is an aromatic hydrocarbon group which may have a substituent, C is a nitrogen atom which may have a substituent, a sulfur atom, an oxygen atom, or a selenium atom, and D is a nitrogen atom, or a carbon atom which may have a substituent; a compound of the following formula (II): ##STR2## wherein each of E, F, G and .circle.H is an aromatic hydrocarbon group which may have a substitutent, I is a nitrogen atom which may have a substituent, a sulfur atom, an oxygen atom, or a selenium atom, and J is a hydrogen atom, a cyano group, an amide group, an ester group, an alkyl group, a carboxyl group, an aromatic hydrocarbon group which may be substituted, or an aromatic heterocyclic group which may be substituted; and a compound having at least one group selected from the group consisting of aromatic hydrocarbon cyclic groups and aromatic heterocyclics groups, bonded directly, or via other group, to a naphthyridine skeleton of the following formula: ##STR3##
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Adachi Chihaya
Maeda Shuichi
Mataga Shuntaro
Saito Shogo
Sato Yoshiharu
Mitsubishi Kasei Corporation
O'Shea Sandra L.
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