Organic electroluminescence element and material for organic electroluminescence element
US-9761811-B2 · Sep 12, 2017 · US
Compound, light emitting material, and organic light emitting device
US10439148B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10439148-B2 |
| Application number | US-201414909182-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 29, 2014 |
| Priority date | Aug 1, 2013 |
| Publication date | Oct 8, 2019 |
| Grant date | Oct 8, 2019 |
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Abstract
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A compound represented by the general formula (1) is useful as a light emitting material. In the general formula (1), Ar 1 to Ar 3 represent an aryl group, provided that Ar 2 and Ar 3 are the same as each other, and at least one of Ar 1 to Ar 3 represents an aryl group substituted with a group represented by the general formula (2). In the general formula (2), R 1 to R 8 represent a hydrogen atom or a substituent; Z represents O, S, R 9 —N, (R 10 ) (R 11 )C, or (R 12 ) (R 13 )Si; and R 9 to R 13 each independently represent a hydrogen atom or a substituent.
First claim
Opening claim text (preview).
The invention claimed is: 1. An organic light emitting device comprising a substrate having thereon a light emitting layer containing a compound represented by the following general formula (1): wherein in the general formula (1), Ar 1 represents an unsubstituted aryl group, Ar 2 and Ar 3 are the same as each other and represent an aryl group substituted with a group represented by the following general formula (2): wherein in the general formula (2), R 1 to R 8 each independently represent a hydrogen atom or a substituent; Z represents O, S, or R 9 —N; and R 9 represents a hydrogen atom or a substituent, provided that R 1 and R 2 , R 2 and R 3 , R 3 and R 4 , R 5 and R 6 , R 6 and R 7 , and R 7 and R 8 each may be bonded to each other to form a cyclic structure, provided that the compound emits light. 2. The organic light emitting device according to claim 1 , wherein the organic light emitting device emits delayed fluorescent light. 3. The organic light emitting device according to claim 1 , wherein the organic light emitting device is an organic electroluminescent device. 4. The organic light emitting device according to claim 1 , wherein the compound is contained in the light emitting layer in an amount of 10% by weight or less. 5. The organic light emitting device according to claim 1 , wherein the light emitting layer consists of the compound. 6. The organic light emitting device according to claim 1 , wherein the light emitting layer contains the compound and a host material.
Assignees
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Classifications
mixtures containing one azo dye · CPC title
containing organic luminescent materials · CPC title
containing luminescent or electroluminescent additives · CPC title
Oxazine dyes · CPC title
Other synthetic dyes of known constitution · CPC title
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- What does patent US10439148B2 cover?
- A compound represented by the general formula (1) is useful as a light emitting material. In the general formula (1), Ar 1 to Ar 3 represent an aryl group, provided that Ar 2 and Ar 3 are the same as each other, and at least one of Ar 1 to Ar 3 represents an aryl group substituted with a group represented by the general formula (2). In the general formula (2), R 1 to R 8 represent a hyd…
- Who is the assignee on this patent?
- Nippon Steel Chemical & Mat 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 Oct 08 2019 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).