ORGANIC ELECTROLUMINESCENCE ELEMENT, NEW COMPOUND FOR THE SAME, DISPLAY DEVICE AND LIGHTING DEVICE USING THE SAME

• US 20130119360A1
• Filed: 12/13/2012
• Published: 05/16/2013
• Est. Priority Date: 07/07/2009
• Status: Active Grant

• Current Assignee: Merck Patent GmbH (Merck & Co., Inc.)
• Original Assignee: Eisaku Katoh, Motoaki Sugino, Rie Katakura, Shuichi Sugita
• Inventors: KATAKURA, Rie, SUGITA, Shuichi, KATOH, Eisaku, SUGINO, Motoaki, FUJISAWA, Rie
• Granted Patent: US 8,592,057 B2
• Time in Patent Office: Days
• US Class Current: 257/40
• CPC Class Codes: C07D 403/10 linked by a carbon chain containing aromatic rings
• CPC Class Codes: C07D 405/04 directly linked by a ring-member-to-ring-member bond
• CPC Class Codes: C07D 405/10 linked by a carbon chain containing aromatic rings
• CPC Class Codes: C07D 405/14 containing three or more hetero rings
• CPC Class Codes: C07D 409/04 directly linked by a ring-member-to-ring-member bond
• CPC Class Codes: C07D 409/10 linked by a carbon chain containing aromatic rings
• CPC Class Codes: C07D 409/14 containing three or more hetero rings
• CPC Class Codes: C07D 471/04 Ortho-condensed systems
• CPC Class Codes: C07D 471/14 Ortho-condensed systems
• CPC Class Codes: C07D 495/04 Ortho-condensed systems
• CPC Class Codes: C07D 519/00 Heterocyclic compounds containing more than one system of two or more relevant hetero rings condensed among themselves or condensed with a common carbocyclic ring system not provided for in groups C07D453/00 or C07D455/00
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1007 Non-condensed systems
• CPC Class Codes: C09K 2211/1029 containing one nitrogen atom as the heteroatom
• CPC Class Codes: C09K 2211/1044 containing two nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1059 containing three nitrogen atoms as heteroatoms
• CPC Class Codes: C09K 2211/1088 containing oxygen as the only heteroatom
• CPC Class Codes: C09K 2211/1092 containing sulfur as the only heteroatom
• CPC Class Codes: H10K 2101/10 Triplet emission
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/141 : comprising aliphatic or olefinic chains, e.g. poly N-vinylcarbazol, PVC or PTFE
• CPC Class Codes: H10K 85/151 : Copolymers
• CPC Class Codes: H10K 85/324 : comprising aluminium, e.g. Alq3
• CPC Class Codes: H10K 85/342 : comprising iridium
• CPC Class Codes: H10K 85/654 : comprising only nitrogen as heteroatom H10K85/652 takes precedence
• CPC Class Codes: H10K 85/6572 : comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
• CPC Class Codes: H10K 85/6574 : comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes
• CPC Class Codes: H10K 85/6576 : comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene

Abstract

Disclosed is an organic electroluminescence element comprising an anode, a cathode and a plurality of organic compound layers between the anode and the cathode, provided that one of the organic compound layers is a light emitting layer containing a phosphorescence emitting compound,

• • wherein at least one of the organic compound layers contains a compound represented by Formula (1),

• • wherein, X represents O or S; Y₁ to Y₃ each represents a hydrogen atom, a substituent or a group represented by Formula (A) disclosed un the specification, provided that at least two of Y₁ to Y₃ are groups represented by Formula (A), not all of Y₁ to Y₃ are the same group, and at least one of the groups represented by Formula (A) has Ar of a carbazolyl group, or an azacarbazolyl group containing 2 to 5 nitrogen atoms.

Claims

1-4. -4. (canceled)

5. An organic electroluminescence element

comprising an anode, a cathode and a plurality of organic compound layers between the anode and the cathode, provided that one of the organic compound layers is a light emitting layer containing a phosphorescence emitting compound.

wherein at least one of the organic compound layers contains a compound represented b Formula (2):

7. The organic electroluminescence element of claim 5,

wherein n₁ in Formula (2A) represents an integer of 0 or 1.

8. The organic electroluminescence element of claim 5,

wherein the compound represented by Formula (2) is contained in the light emitting layer.

9. The organic electroluminescence element of claim 5,

wherein at least one of the organic compound layers is an electron transport layer and the compound represented by Formula (2) is contained in the electron transport layer.

10. The organic electroluminescence element of claim 5,

wherein the organic compound layer containing the compound represented by Formula (2) is prepared with a wet coating process.

11. The organic electroluminescence element of claim 5, wherein the organic electroluminescence element emits a white light.

12. A lighting device comprising the organic electroluminescence element of claim 5.

13. A display device comprising the organic electroluminescence element of claim 5.

6. (canceled)

14. A compound represented by Formula (2),