Organic electroluminescent device

• US 20050238919A1
• Filed: 04/21/2005
• Published: 10/27/2005
• Est. Priority Date: 04/23/2004
• Status: Abandoned Application

• Current Assignee: UDC Ireland Limited
• Original Assignee: Fuji Photo Film Co Limited (Fujifilm Holdings Corporation)
• Inventors: Ogasawara, Jun
• Application Number:
  US11/110,702
• Publication Number:
  US 20050238919A1
• Time in Patent Office: Days
• US Class Current: 428/690
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1011 Condensed systems
• CPC Class Codes: C09K 2211/1014 bridged by heteroatoms, e.g. N, P, Si or B
• CPC Class Codes: C09K 2211/1029 containing one nitrogen atom as the heteroatom
• CPC Class Codes: H05B 33/14 characterised by the chemical or physical composition or the arrangement of the electroluminescent material , or by the simultaneous addition of the electroluminescent material in or onto the light source
• CPC Class Codes: H10K 50/11 characterised by the electroluminescent [EL] layers
• CPC Class Codes: H10K 85/40 Organosilicon compounds, e.g. TIPS pentacene

Abstract

An organic electroluminescent device including a pair of electrodes, and at least one organic layer including a luminescent layer between the pair of electrodes, in which the organic electroluminescent device includes at least one compound selected from the group consisting of the compounds represented by Formula (1), (2) and (3):

Claims

1. An organic electroluminescent device comprising:

a pair of electrodes, and

at least one organic layer including a luminescent layer between the pair of electrodes,

wherein the organic electroluminescent device comprises a compound represented by Formula (1);

wherein Ar¹¹ may be the same as or different from each other, and represent an aryl group or a heteroaryl group;

Ar¹² represents an orthophenylene group, a methaphenylene group, a biphenylene group, a group in which 3 to 6 benzene rings are linked, an arylene group of a condensed ring in which 2 to 6 aromatic rings are condensed, or a heteroarylene group;

Ar¹² may be a group in which an arylene group and a heteroarylene group are linked to each other; and

R¹¹, R¹², and R¹³ may be the same as or different from each other, and represent an alkyl group, an aryl group, or a heteroaryl group, and

wherein compounds represented by Formula (1) exclude diphenyl di(o-tolyl)silane and (p-bis(triphenylsilyly)benzene.

2. The organic electroluminescent device of claim 1, wherein

the luminescent layer comprises a luminescent material and the compound represented by Formula (1).

3. The organic electroluminescent device of claim 2, wherein

the luminescent material is a phosphorescent material.

4. The organic electroluminescent device of claim 2, wherein

the luminescent layer further comprises a hole injecting and transporting compound.

5. The organic electroluminescent device of claim 2, wherein

the luminescent layer further comprises an electron injecting and transporting compound.

6. The organic electroluminescent device of claim 5, wherein

the electron injecting and transporting compound is a metal complex or a heterocyclic compound comprising at least two nitrogen atoms.

7. An organic electroluminescent device comprising:

a pair of electrodes, and

at least one organic layer including a luminescent layer between the pair of electrodes,

wherein the organic electroluminescent device comprises a compound represented by Formula (2);

wherein Ar²¹ represents an aryl group or a heteroaryl group, and does not have a silyl group as a substituent therein;

m represents 1 or 2, and when m represents 2, Ar²′

may be the same as or different from each other;

Ar²² may be the same as or different from each other, and represents an arylene group or a heteroarylene group;

Ar²² may be a group in which an arylene group and a heteroarylene group are linked to each other;

R²¹, R²², and R²³ may be the same as or different from each other, and represent an alkyl group, an aryl group, or a heteroaryl group.

8. The organic electroluminescent device of claim 7, wherein

the luminescent layer comprises a luminescent material and the compound represented by Formula (2).

9. The organic electroluminescent device of claim 8, wherein

the luminescent material is a phosphorescent material.

10. The organic electroluminescent device of claim 8, wherein

the luminescent layer further comprises a hole injecting and transporting compound.

11. The organic electroluminescent device of claim 8, wherein

the luminescent layer further comprises an electron injecting and transporting compound.

12. The organic electroluminescent device of claim 11, wherein

the electron injecting and transporting compound is a metal complex or a heterocyclic compound comprising at least two nitrogen atoms.

13. An organic electroluminescent device comprising:

a pair of electrodes, and

at least one organic layer including a luminescent layer between the pair of electrodes,

wherein the organic electroluminescent device comprises a compound represented by Formula (3);

wherein Ar³² may be the same as or different from each other, and represents an arylene group, a group including an azole structure, a group including an azine structure having two or more heteroatoms, a group including a furan structure, or a group including a thiophene structure;

Ar³² may be a group in which two or more of an arylene group, a group including an azole structure, a group including an azine structure having two or more heteroatoms, a group including a furan structure, or a group including a thiophene structure are linked to each other; and

R³¹, R³², and R³³ may be the same as or different from each other, and represent an alkyl group, an aryl group, or a heteroaryl group.

14. The organic electroluminescent device of claim 13, wherein

the luminescent layer comprises a luminescent material and the compound represented by Formula (3).

15. The organic electroluminescent device of claim 14, wherein

the luminescent material is a phosphorescent material.

16. The organic electroluminescent device of claim 14, wherein

the luminescent layer further comprises a hole injecting and transporting compound.

17. The organic electroluminescent device of claim 14, wherein

the luminescent layer further comprises an electron injecting and transporting compound.

18. The organic electroluminescent device of claim 17, wherein

the electron injecting and transporting compound is a metal complex or a heterocyclic compound comprising at least two nitrogen atoms.