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US 8,895,157 B2Granted
Host material for lighting devices
AssigneeNitto Denko Corporation
InventorsShijun Zheng, Rebecca Romero, David T. Sisk
Life of this patent
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Abstract
Optionally substituted bispyridinylbenzene compounds useful in light-emitting devices include, but are not limited to, 1,3-bis(5-(9H-carbazol-9-yl)pyridin-3-yl)benzene and 9,9′-(5,5′-(5-methyl-1,3-phenylene)bis(pyridine-5,3-diyl))bis(9H-carbazole).
Claims10
A compound which has a formula selected from:
An organic light-emitting device comprising:
- an organic component disposed between an anode and a cathode for emitting light;
- wherein the organic component comprises an emissive component and a compound represented by the formula:
- wherein R1, R2, R3, and R4 are independently selected from H, —CH1, and —C2H3;
- and Bz1 and Bz2 are independently selected from optionally substituted carbazolyl, optionally substituted diphenylamine, and optionally substituted phenylnaphthylamine.
1 more element
Dependencies are inferred from the claim text.