Organic electroluminescent materials and devices
US10566547B2 · kind B2 · utility
1Cited by
35References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 14, 2017 |
| Grant date | Feb 18, 2020 |
| Priority date | — |
| Expiry date | Mar 11, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present application includes novel compounds containing xanthene and spiro dixanthene ring structures. These compounds are useful as host materials with high triplet energies for phosphorescent electroluminescent devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.