IP Library Granted Patent US 8,221,908
Granted Patent B2
US 8,221,908 · App. 13/072,025 · Granted Jul 17, 2012

Organic electroluminescent device, display, and illuminating device

Assignee: Konica Minolta Holdings, Inc.
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Quick Facts
Patent No.
US 8,221,908
App. No.
13/072,025
Granted
Jul 17, 2012
Kind
B2
Abstract

An organic electroluminescent element including at least an emission layer sandwiched between an anode and a cathode, wherein the emission layer comprises at least a compound represented by Formula (A),

Claims (16)

1. An organic electroluminescent element comprising at least an emission layer sandwiched between an anode and a cathode, wherein the emission layer comprises at least a compound represented by Formula (3)′,

wherein X represents O or S; A 1 and A 2 each represent a hydrogen atom or a substituent and at least one of A 1 and A 2 is a substituent having a carbazoyl group; L 1 and L 2 each represent a divalent linking group; n is an integer of 2 or more; n3 and n4 each are 0 or 1.

2. An organic electroluminescent element comprising at least an emission layer sandwiched between an anode and a cathode, wherein the emission layer comprises at least a compound represented by Formula (3)′:

wherein X represents O or S; A 1 and A 2 each represent a hydrogen atom or a substituent and at least one of A 1 and A 2 is a substituent having a carbolinyl group; L 1 and L 2 each represent a divalent linking group; n is an integer of 2 or more n3 and n4 each are 0 or 1.

3. The organic electroluminescent element of claim 1 , wherein n is an integer of 2 to 10.

4. The organic electroluminescent element of claim 2 , wherein n is an integer of 2 to 10.

5. The organic electroluminescent element of claim 1 , generating emission of white color.

6. A lighting device comprising the organic electroluminescent element described in claim 1 .

7. The organic electroluminescent element of claim 1 , wherein the compound represented by Formula (3) is further represented by Formula (1),

wherein X represents of O or S; n is an integer of 2 or more; A 1 and A 2 each represent a hydrogen atom or a substituent; and at least one of A 1 and A 2 are a substituent having a carbazoyl group.

8. The organic electroluminescent element of claim 2 , wherein the compound represented by Formula (3) is further represented by Formula (1),

wherein X represents of O or S; n is an integer of 2 or more; A 1 and A 2 each represent a hydrogen atom or a substituent; and at least one of A 1 and A 2 are a substituent having a carbolinyl group.

9. The organic electroluminescent element of claim 1 , wherein the emission layer incorporates a phosphorescence-emitting metal complex and wherein the phosphorescence-emitting metal complex is an Ir complex.

10. The organic electroluminescent element of claim 2 , wherein the emission layer incorporates a phosphorescence-emitting metal complex and wherein the phosphorescence-emitting metal complex is an Ir complex.

11. The organic electroluminescent element of claim 2 , generating emission of white color.

12. A lighting device comprising the organic electroluminescent element described in claim 2 .

Priority Claims (1)
JP 2006-000473 · Jan 5, 2006 · national
Continuity (2)
Division 12159963
Related Publication 20110168990A1 · Jul 14, 2011