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US 12,635,403 B2Granted
Organic electroluminescence device
AssigneeUDC Ireland Limited
InventorEiji Fukuzaki
Life of this patent
Estimating the term…
Abstract
An organic electroluminescence device material comprising a metal complex having a neopentyl group, for example, as shown below; and an organic electroluminescence device comprising a substrate having thereon a pair of electrodes and at least one organic layer between the electrodes, the organic layer containing a light emitting layer, wherein any one of the organic layer contains the organic electroluminescence device material.
Claims8
A compound represented by formula (3):
- wherein M31 represents iridium;
- each of A31 and A32 independently represents a nitrogen atom or a carbon atom, each of R33 to R36 independently represents a hydrogen atom or a substituent;
- wherein R33 to R36 do not combine with each other to form a ring;
- Z32 represents an aromatic heterocyclic ring or an aromatic hydrocarbon ring;
- each of L32 and L33 independently represents a carbon atom, a nitrogen atom, an oxygen atom or a phosphorus atom;
- E31 represents an atomic group for forming a bidentate ligand together with L32 and L33;
- k represents an integer of 1 to 3, l represents an integer of 0 to 2, k+l is 3;
- each of S31 and S32 independently represents a substituent selected from (a), (c), (e), (h), (i), (j), (l), (n), (o), (q), and (w);
- each of n and m represents an integer of 0 to 4, n+m is an integer of 1 to 4;
- and each S31 or S32 may be the same as or different from every other S31 or S32;
- wherein * indicates the bond to formula (3).
8 more elements
A compound represented by the following general formula (12):
- wherein M121 represents a metal of Groups 8 to 11 in the periodic table of elements, each of R123 to R125 independently represents a hydrogen atom or a substituent, wherein R123 to R125 do not combine with each other to form a ring, each of B121 to B124 independently represents a nitrogen atom or C—R126, R126 represents a hydrogen atom or a substituent, each R126 may be the same as or different from every other R126, each of L122 and L123 represents a carbon atom, a nitrogen atom, an oxygen atom or a phosphorus atom, E121 represents an atomic group for forming a bidentate ligand together with L122 and L123, k represents an integer of 1 to 3, l represents an integer of 0 to 2, k+l is 2 or 3, each of S121 and S122 independently represents a substituent selected from (a) to (w), each of n and m represents an integer of 0 to 4, n+m is an integer of 1 to 4, and each S121 or S122 may be the same as or different from every other S121 or S122;
- wherein * indicates the bond to formula (12).
Dependencies are inferred from the claim text.