Organic electroluminescent materials and devices

Patent metadata

Field	Value
Publication number	US-10374171-B2
Application number	US-201815977452-A
Country	US
Kind code	B2
Filing date	May 11, 2018
Priority date	Aug 8, 2007
Publication date	Aug 6, 2019
Grant date	Aug 6, 2019

Abstract

Triphenylene containing benzo-fused thiophene compounds are provided. Additionally, triphenylene containing benzo-fused furan compounds are provided. The compounds may be useful in organic light emitting devices, particularly as hosts in the emissive layer of such devices, or as materials for enhancement layers in such devices, or both.

First claim

The invention claimed is:

1. A compound having a structure of Formula (VI):

wherein X is S or O;
wherein R 1 and R 2 are unfused substituents that are independently selected from Ar 1 , Ar 1 —Ar 2 , or no substitution;
wherein each of R 1 and R 2 may represent mono, di, tri, or tetra substitutions;
wherein Ar 1 and Ar 2 are independently selected from the group consisting of benzene, biphenyl, naphthalene, triphenylene, carbazole, and heteroaromatic analogs thereof; and
wherein at least one of R 1 and R 2 includes a triphenylene group.

2. The compound of claim 1 , having a structure selected from the group consisting of:

3. The compound of claim 1 , wherein R 1 is no substitution.

4. The compound of claim 3 , wherein R 2 is monosubstituted.

5. The compound of claim 4 , wherein, when present, each Ar 1 and each Ar 2 is independently benzene or triphenylene.

6. The compound of claim 1 , wherein each of R 1 and R 2 is monosubstituted.

7. The compound of claim 1 , wherein, when present, each Ar 1 and each Ar 2 is independently benzene or triphenylene.

8. The compound of claim 7 , having a structure selected from the group consisting of:

9. The compound of claim 1 , wherein the compound has a structure selected from the group consisting of:

10. The compound of claim 9 , wherein X is S.

11. The compound of claim 1 , wherein X is S.

12. The compound of claim 1 , wherein X is O.

13. The compound of claim 1 , wherein the compound has a structure of

wherein X is S.

14. The compound of claim 1 , wherein the compound has a structure of

wherein X is O.

15. A compound having a structure of

wherein X is S or O.

16. The compound of claim 15 , wherein X═S.

17. The compound of claim 15 , wherein X═O.

18. A compound having a structure of

wherein X is S or O.

19. The compound of claim 18 , wherein X═S.

20. The compound of claim 18 , wherein X═O.

Assignees

• Universal Display Corp

Inventors

• Ma Bin
• Wu Yonggang
• Lin Chun
• Kwong Raymond

Classifications

• C09B57/00

  Other synthetic dyes of known constitution · CPC title

• C07D409/04

  directly linked by a ring-member-to-ring-member bond · CPC title

• C07D333/76 Primary

  Dibenzothiophenes · CPC title

• C07D333/54

  with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the hetero ring · CPC title

• C07D307/91 Primary

  Dibenzofurans; Hydrogenated dibenzofurans · CPC title