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US 10,374,171 B2Granted
Organic electroluminescent materials and devices
AssigneeUniversal Display Corporation
InventorsBin Ma, Yonggang Wu, Chun Lin, Raymond Kwong
Life of this patent
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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.
Claims20
A compound having a structure of Formula (VI):
- wherein X is S or O;
- wherein R1 and R2 are unfused substituents that are independently selected from Ar1, Ar1—Ar2, or no substitution;
- wherein each of R1 and R2 may represent mono, di, tri, or tetra substitutions;
- wherein Ar1 and Ar2 are independently selected from the group consisting of benzene, biphenyl, naphthalene, triphenylene, carbazole, and heteroaromatic analogs thereof;
- and
- wherein at least one of R1 and R2 includes a triphenylene group.
3 more elements
A compound having a structure of
- wherein X is S or O.
A compound having a structure of
- wherein X is S or O.
Dependencies are inferred from the claim text.