Heterogeneous spiro compounds in organic light emitting device elements

• US 20040219386A1
• Filed: 04/29/2003
• Published: 11/04/2004
• Est. Priority Date: 04/29/2003
• Status: Active Grant

• Current Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Original Assignee: Canon Ayutthaya Limited (Canon Inc.)
• Inventors: Thoms, Travis P. S.
• Granted Patent: US 7,014,925 B2
• Time in Patent Office: Days
• US Class Current: 428/690
• CPC Class Codes: C07D 221/20 Spiro-condensed ring systems
• CPC Class Codes: C07D 311/96 spiro-condensed with carbocyclic rings or ring systems
• CPC Class Codes: C07F 7/0807 comprising Si as a ring atom
• CPC Class Codes: C09K 11/06 containing organic luminescent materials
• CPC Class Codes: C09K 2211/1088 containing oxygen as the only 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: Y10S 428/917 Electroluminescent

Abstract

A family of heterogeneous spiro compounds is disclosed which may be used in organic light emitting devices (OLEDs), as an emissive layer and/or one or more of the charge transport layers, or as a host material for one or more of such layers.

Claims

1. A composition having visible-light-emissive, hole-transport, electron-transport, or bipolar-transport properties, comprising a non-polymeric compound with following structure:

2. A composition according to claim 1, wherein X is oxygen.

3. A composition according to claim 2, having the following structure:

4. A composition according to claim 1, wherein X is nitrogen

5. A composition according to claim 4, having the following structure:

6. A composition according to claim 1, wherein X is silicon.

7. A composition according to claim 6, having the following structure:

12. An organic light emitting device comprising an anode, a cathode and functional layers, at least one functional layer comprising a composition according to claim 1.

13. An organic light emitting device according to claim 12, wherein said at least one functional layer is a charge transport layer.

14. An organic light emitting device according to claim 12, wherein said functional layer is a bipolar charge transport layer.

15. An organic light emitting device according to claim 12, wherein said at least one functional layer has luminescent emission in the visible range.

16. An organic light emitting device according to claim 12, wherein said at least one functional layer is a guest-host system, and the composition according to claim 1 is a host in said system.

8. A composition having visible-light-emissive, hole-transport, electron-transport, or bipolar-transport properties, comprising a non-polymeric compound with following structure:

9. The composition according to claim 8, wherein X is nitrogen and the compound has hole transport capability.

10. The composition according to claim 8, wherein X is nitrogen and (Ar) is multi-ring aromatic.

11. The composition according to claim 8, wherein X is nitrogen and (Ar) is biphenyl.

17. An organic light emitting device comprising an anode, a cathode and functional layers, having at least one functional layer comprising a composition according to claim 8.

18. An organic light emitting device according to claim 17, wherein said functional layer is a charge transport layer.

19. An organic light emitting device according to claim 17, wherein said functional layer is a bipolar charge transport layer.

20. An organic light emitting device according to claim 17, wherein said functional layer has a fluorescent or phosphorescent emission in the visible range.

21. An organic light emitting device according to claim 17, wherein said functional layer is a guest-host system, and the composition according to claim 8 is a host in said system.