Polyheteroaromatic compound and organic electroluminescence device using the same
US-2019123284-A1 · Apr 25, 2019 · US
Delayed fluorescence compound and organic electroluminescent device using the same
US10472564B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10472564-B2 |
| Application number | US-201715715177-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 26, 2017 |
| Priority date | Sep 26, 2017 |
| Publication date | Nov 12, 2019 |
| Grant date | Nov 12, 2019 |
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- Title
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Abstract
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The present invention discloses a delayed fluorescence compound and the organic electroluminescent device employing the delayed fluorescence compound as the delayed fluorescence dopant material, the delayed fluorescence host material, or the phosphorescent host material in the light emitting layer, and/or used in the hole blocking layer and/or the electron transporting layer of the organic EL device, which thereby displays good performance.
First claim
Opening claim text (preview).
The invention claimed is: 1. A delayed fluorescence compound of formula (1): wherein X is O, S, or Se; Y 1 -Y 8 are each independently a nitrogen atom or CR; R, R 1 , and R 2 are each independently selected from the group consisting of a hydrogen atom, a halide, a nitro, a pyridine, a pyrazine, a pyrimidine, a pyridazine, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted alkenyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms; L represents formula (2): n is 0 or 1; and Z is selected from formulas (3)-(7): and wherein R 3 to R 10 are each independently selected from the group consisting of a hydrogen atom, a halide, a substituted or unsubstituted alkyl group having 1 to 30 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, a substituted or unsubstituted heteroaryl group having 3 to 30 carbon atoms, and a substituted or unsubstituted aralkyl group having 6 to 30 carbon atoms; Y 2 and Y 3 are optionally connected to each other to form an aromatic or heteroaromatic ring; and Y 6 and Y 7 are optionally connected to each other to form an aromatic or heteroaromatic ring. 2. The delayed fluorescence compound of claim 1 , comprising a structure of formula (8): wherein Y 9 -Y 16 are each independently a nitrogen atom or CR; and R, R 1 , R 2 , X, L, n, and Z have the same meaning as defined in claim 1 . 3. The delayed fluorescence compound of claim 1 , wherein the delayed fluorescence compound is one of the following compounds:
Assignees
Inventors
Classifications
in which the condensed system contains four or more hetero rings · CPC title
containing sulfur as the only heteroatom · CPC title
- C09K11/06Primary
containing organic luminescent materials · CPC title
in which the condensed system contains four or more hetero rings · CPC title
Spiro-condensed systems · CPC title
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- What does patent US10472564B2 cover?
- The present invention discloses a delayed fluorescence compound and the organic electroluminescent device employing the delayed fluorescence compound as the delayed fluorescence dopant material, the delayed fluorescence host material, or the phosphorescent host material in the light emitting layer, and/or used in the hole blocking layer and/or the electron transporting layer of the organic EL d…
- Who is the assignee on this patent?
- Yen Feng Wen, Hsiao Wen Feng
- What technology area does this patent fall under?
- Primary CPC classification C09K11/06. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Nov 12 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 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).