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US 11,081,655 B2Granted
Heterocyclic compound and organic light emitting device using the same
AssigneeLG Chem, Ltd.
InventorsDong Uk Heo, Dong Hoon Lee, Jung Oh Huh, Boon Jae Jang, Mi Yeon Han, Min Woo Jung, Jung Hoon Yang
Life of this patent
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Abstract
The present disclosure relates to a novel cyclic compound represented by Chemical Formula 1 and an organic light emitting device using the same. The compound is used as a material of an organic material layer of the organic light emitting device.
Claims7
A compound represented by Chemical Formula 1:
- wherein, in Chemical Formula 1,
- X1 is O or S,
- two of R1 to R4 are hydrogen, and the rest are Ar1 which differ from each other,
- Ar1 is each independently -L-Ar2,
- L is each independently a direct bond, or substituted or unsubstituted C6-60 arylene,
- Ar2 is each independently represented by Chemical Formula 2 below,
- wherein, in Chemical Formula 2,
- one, two, or three of X2 are N, and the rest are CR5,
- R5 is each independently hydrogen, deuterium, substituted or unsubstituted C1-60 alkyl, substituted or unsubstituted C6-60 aryl, or substituted or unsubstituted C5-60 heteroaryl containing at least one heteroatom selected from the group consisting of N, O and S;
- with the proviso that when two of X2 are N, R5 is not a heteroaryl group.
7 more elements
Dependencies are inferred from the claim text.