Heterocyclic compound, organic light-emitting element comprising same, and composition for organic material layer
US-2024298525-A1 · Sep 5, 2024 · US
Light emitting material, manufacture method thereof and organic light emitting diode using the light emitting material
US11034885B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11034885-B2 |
| Application number | US-202016819175-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 16, 2020 |
| Priority date | Jul 20, 2016 |
| Publication date | Jun 15, 2021 |
| Grant date | Jun 15, 2021 |
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Abstract
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An organic light emitting diode includes a light emitting layer that includes a light emitting material of the constitutional formula The structure is unitary, and the formula weight is determined, and the better solubility and film formation are provided, and the thin film status is stable; it possesses a very high decomposition temperature and a lower sublimation temperature, and is easy to sublime to be light emitting material of high purity, and can be applied for small molecule organic light emitting diode. In the method for manufacturing the light emitting material, p-bromothiophenol and 4-Bromo-2-fluorobenzonitrile are employed to be starting materials, and an intermediate of the light emitting material is obtained with a series of simple reactions, and finally, the light emitting material is obtained with Ullmann reaction or Suzuki reaction, and these steps are simple and the production is high.
First claim
Opening claim text (preview).
What is claimed is: 1. An organic light emitting diode, comprising a substrate, an anode, a hole injection layer, a hole transporting layer, a light emitting layer, an electron transport layer, an electron injection layer and a cathode stacked in sequence on the substrate from bottom to top; wherein the light emitting layer comprises a light emitting material having the following constitutional formula: wherein Ar 1 and Ar 2 are respectively selected from aromatic amine groups shown in formula (1), formula (2), formula (3), formula (4), formula (5), formula (6), formula (7); and wherein the light emitting material is selected from following compound:
Assignees
Inventors
Classifications
- C07D409/14Primary
containing three or more hetero rings · CPC title
containing three or more hetero rings · CPC title
Oxygen atoms, e.g. thioxanthones · CPC title
containing one nitrogen atom as the heteroatom · CPC title
- C09K11/06Primary
containing organic luminescent materials · CPC title
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- What does patent US11034885B2 cover?
- An organic light emitting diode includes a light emitting layer that includes a light emitting material of the constitutional formula The structure is unitary, and the formula weight is determined, and the better solubility and film formation are provided, and the thin film status is stable; it possesses a very high decomposition temperature and a lower sublimation te…
- Who is the assignee on this patent?
- Tcl China Star Optoelectronics Tech Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C07D409/14. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Jun 15 2021 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).