Carbazole derivative, material for organic electroluminescent element which comprises same, and organic electroluminescent element and electronic device each manufactured using same
US9963429B2 · kind B2 · utility
2Cited by
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24Claims
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Key dates
| Filing date | Sep 1, 2014 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Jan 7, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A novel carbazole derivative represented by formula (1) in which two or more groups each having a specific structure, such as a carbazolyl group, are bonded to two or more of 2-, 3- and 4-positions of the carbazole derivative is useful as a material for organic electroluminescence devices. A material for organic electroluminescence devices including the carbazole derivative, an organic electroluminescence device employing the carbazole derivative, and an electronic equipment are described.wherein at least two selected from B1 to B3 are represented by formula (2) and A, X1 to X4, L, n, Y, and R1 to R8 are as defined in claim 1.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.