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US 11,456,423 B2Granted
Organic electroluminescent materials and devices
AssigneeUniversal Display Corporation
InventorsLichang Zeng, Suman Layek, Pierre-Luc T. Boudreault, Zeinab Elshenawy, Gregg Kottas, Alexey Borisovich Dyatkin, Scott Joseph, Vadim Adamovich, Chuanjun Xia, Ting-Chih Wang, Walter Yeager
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Abstract
A composition of materials including a first compound having a structure according to Formula I
Claims18
A composition of materials comprising a first compound, wherein the first compound has a formula:
- wherein G1 is selected from the group consisting of dibenzofuran, dibenzothiophene, dibenzoselenophene, and fluorene;
- wherein L1 is selected from the group consisting of phenyl, biphenyl, terphenyl, pyridine, pyrimidine, and combinations thereof;
- wherein L2 and L3 are each independently selected from the group consisting of a direct bond, phenyl, biphenyl, terphenyl, pyridine, pyrimidine, and combinations thereof;
- wherein G4 is selected from the group consisting of phenyl, biphenyl, terphenyl, naphthalene, phenanthrene, pyridine, pyrimidine, pyrazine, quinoline, isoquinoline, phenanthroline, and combinations thereof;
- wherein G2, G3, and G5 are each independently selected from the group consisting of phenyl, biphenyl, terphenyl, fluorene, naphthalene, phenanthrene, pyridine, pyrimidine, pyrazine, quinoline, isoquinoline, phenanthroline, aza-fluorene, and combinations thereof;
- wherein G2, G3, G4, and G5 are each optionally further substituted with one or more unfused substituents selected from the group consisting of deuterium, alkyl, alkoxyl, cycloalkyl, cycloalkoxyl, halogen, nitro, nitrile, silyl, phenyl, biphenyl, terphenyl, pyridine, and combinations thereof;
- wherein m is an integer from 1 to 7,
- wherein n is an integer from 1 to 4;
- and
- wherein, when m or n is larger than 1, each G4 or G5 can be same or different.
7 more elements
A first device comprising a first organic light emitting device, the first organic light emitting device comprising:
- an anode;
- a cathode;
- and
- an organic layer, disposed between the anode and the cathode, comprising A composition of materials comprising a first compound, wherein the first compound has a formula:
- wherein G1 is selected from the group consisting of dibenzofuran, dibenzothiophene, dibenzoselenophene, and fluorene;
- wherein L1 is selected from the group consisting of phenyl, biphenyl, terphenyl, pyridine, pyrimidine, and combinations thereof;
- wherein L2 and L3 are each independently selected from the group consisting of a direct bond, phenyl, biphenyl, terphenyl, pyridine, pyrimidine, and combinations thereof;
- wherein G4 is selected from the group consisting of phenyl, biphenyl, terphenyl, naphthalene, phenanthrene, pyridine, pyrimidine, pyrazine, quinoline, isoquinoline, phenanthroline, and combinations thereof;
- wherein G2, G3, and G5 are each independently selected from the group consisting of phenyl, biphenyl, terphenyl, fluorene, naphthalene, phenanthrene, pyridine, pyrimidine, pyrazine, quinoline, isoquinoline, phenanthroline, aza-fluorene, and combinations thereof;
- wherein G2, G3, G4, and G5 are each optionally further substituted with one or more unfused substituents selected from the group consisting of deuterium, alkyl, alkoxyl, cycloalkyl, cycloalkoxyl, halogen, nitro, nitrile, silyl, phenyl, biphenyl, terphenyl, pyridine, and combinations thereof;
- wherein m is an integer from 1 to 7,
- wherein n is an integer from 1 to 4;
- and
- wherein, when m or n is larger than 1, each G4 or G5 can be same or different.
11 more elements
Dependencies are inferred from the claim text.