Condensed fluorene derivative comprising heterocyclic ring
US11683980B2 · kind B2 · utility
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10Claims
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Key dates
| Filing date | Jun 10, 2015 |
| Grant date | Jun 20, 2023 |
| Priority date | — |
| Expiry date | Oct 15, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/6574
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a condensed fluorene derivative comprising a hetero ring, and, more specifically, relates to an intermediate for producing a hetero-ring compound able to exhibit the outstanding element characteristic of a long life and outstanding luminance and light-emission efficiency when used as an organic light-emitting material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.