Organic electroluminescent compound, a plurality of host materials and organic electroluminescent device comprising the same
US-2021198567-A1 · Jul 1, 2021 · US
Heterocyclic compound and organic light emitting device comprising same
US12202838B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12202838-B2 |
| Application number | US-201917275985-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 8, 2019 |
| Priority date | Nov 19, 2018 |
| Publication date | Jan 21, 2025 |
| Grant date | Jan 21, 2025 |
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- Title
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- Abstract
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Abstract
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A heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same, and the heterocyclic compound which is used as a material of an organic material layer of the organic light emitting device and provides improved efficiency, low driving voltage and improved lifetime characteristics of the organic light emitting device.
First claim
Opening claim text (preview).
The invention claimed is: 1. A compound represented by Chemical Formula 1: wherein, in Chemical Formula 1, Y is O or S, A is a benzofuran ring, a benzothiophene ring, dibenzofuran ring or dibenzothiophene ring, R 1 , R 2 , R 3 and R 4 are each independently a substituent represented by Chemical Formula 2, and m, n, o and p are each independently 0 or 1, and at least one thereof is 1, wherein, in Chemical Formula 2, L is a single bond or a C 6-30 arylene, X 1 , X 2 and X 3 are each independently N or CR′, and at least two thereof are N, each R′ is independently hydrogen, deuterium, or C 1-10 alkyl, and Ar 1 and Ar 2 are each independently C 6-30 aryl or pyridyl, and they are independently unsubstituted or substituted with a nitrile group, a C 1-10 alkyl, or a C 1-10 alkoxy. 2. The compound according to claim 1 , wherein the compound is any one selected from compounds represented by Chemical Formulas 3 to 18: wherein, in Chemical Formulas 3 to 18, Y, R 1 , R 2 , R 3 , R 4 , m, n, o and p are the same as defined in claim 1 . 3. The compound according to claim 1 , wherein L is a single bond, phenylene or biphenylylene. 4. The compound according to claim 1 , wherein Ar 1 and Ar 2 are each independently phenyl, biphenylyl, naphthyl, terphenylyl, dimethylfluorenyl, diphenylfluorenyl or pyridyl, and are each independently unsubstituted or substituted with cyano, C 1-10 alkyl or C 1-10 alkoxy. 5. The compound according to claim 1 , wherein Ar 1 and Ar 2 are each independently phenyl, biphenylyl, naphthyl or pyridyl, and are each independently unsubstituted or substituted with cyano, C 1-10 alkyl or C 1-10 alkoxy. 6. The compound according to claim 1 , wherein R′ is hydrogen. 7. The compound according to claim 1 , wherein the compound represented by Chemical Formula 1 is any one selected from the group consisting of the following:
Assignees
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Classifications
Electron injection layers · CPC title
Carrier injection layers · CPC title
- C07D493/10Primary
Spiro-condensed systems · CPC title
- C07D498/10Primary
Spiro-condensed systems · CPC title
Spiro-condensed systems · CPC title
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Frequently asked questions
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- What does patent US12202838B2 cover?
- A heterocyclic compound represented by Chemical Formula 1 and an organic light emitting device including the same, and the heterocyclic compound which is used as a material of an organic material layer of the organic light emitting device and provides improved efficiency, low driving voltage and improved lifetime characteristics of the organic light emitting device.
- Who is the assignee on this patent?
- Lg Chemical Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07D493/10. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jan 21 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).