Organic metal complex, and organic light emitting device and display apparatus using the same

Patent metadata

Field	Value
Publication number	US-10069089-B2
Application number	US-201615374364-A
Country	US
Kind code	B2
Filing date	Dec 9, 2016
Priority date	Nov 8, 2007
Publication date	Sep 4, 2018
Grant date	Sep 4, 2018

Abstract

Provided is an organic metal complex having a structure represented by the following general formula (1):

ML m L′ n   (1)

where: M represents a metal atom selected from Ir, Pt, Rh, Os, and Zn; L and L′, which are different from each other, each represent a bidentate ligand; m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3; a partial structure ML m represents a structure represented by the following general formula (2):

and a partial structure ML′ n represents a structure including a monovalent bidentate ligand.

First claim

The invention claimed is:

1. A luminescent material comprising:
an organic metal complex having a structure represented by the following general formula (1):
ML m L′ n   (1)

wherein L and L′, which are different from each other, each represent a bidentate ligand; wherein m represents an integer of 1 to 3 and n represents an integer of 0 to 2, provided that m+n is 3;
wherein M represents Ir;
wherein the partial structure ML m has a structure represented by the following general formula (8):

wherein the benzene ring with R 41 -R 44 attached thereto in the formula (8) is further represented by any one of the following formulae:

wherein *1 shows the connection to the Ir;
wherein *2 shows the connection to the benzo[f]isoquinoline ring represented in the formula (8);
wherein R 88 to R 102 , which may be identical to or different from each other, each represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted aralkyl group, an amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group;
wherein the partial structure ML′ n has a structure represented by any one of the following general formulae (10) to (12):

wherein R 45 to R 52 , which may be identical to or different from each other, each represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted aralkyl group, an amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, and R 47 and R 48 may be bonded to form a benzene ring that is fused with the benzo[f]isoquinoline ring represented in the formula (8); and
wherein R 65 to R 79 , which may be identical to or different from each other, each represent a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, an alkoxy group, an aralkyl group, a substituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heterocyclic group, and adjacent substituents among R 65 to R 68 may be bonded to form a ring that is fused with the benzene ring represented in the formula (10), and adjacent substituents among R 77 to R 79 may be bonded to form a ring that is fused with the backbone represented in the formula (12).

2. The luminescent material according to claim 1 , wherein the luminescent material is a material for an organic light emitting device.

3. An ink comprising a solvent and the luminescent material according to claim 2 .

4. The ink according to claim 3 further comprising a binder resin.

5. The ink according to claim 3 further comprising at least one of an oligomer and a polymer material.

6. The ink according to claim 4 , wherein the binder resin is selected from the group consisting of a polyvinylcarbazole resin, a polycarbonate resin, a polyester resin, an ABS resin, an acrylic resin, a polyimide resin, a phenol resin, an epoxy resin, a silicone resin, and a urea resin.

7. The ink according to claim 6 , wherein the binder resin comprises at least two resins.

8. The ink according to claim 6 further comprising at least one of a plasticizer, an antioxidant, and a UV absorber.

9. The ink according to claim 3 further comprising at least one of a plasticizer, an antioxidant, and a UV absorber.

Assignees

• Canon Kk

Inventors

• Kamatani Jun
• Hashimoto Masashi
• Igawa I Satoshi
• Okada Shinjiro

Classifications

• C07F15/0033

  Iridium compounds · CPC title

• C09K2211/185

  of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd · CPC title

• C09D11/50

  Sympathetic, colour changing or similar inks · CPC title

• C09K2211/1011

  Condensed systems · CPC title

• C09K2211/1029

  containing one nitrogen atom as the heteroatom · CPC title