Organic light emitting diode and organic light emitting device having the same
US11515485B2 · kind B2 · utility
0Cited by
4References
34Claims
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Key dates
| Filing date | Dec 3, 2019 |
| Grant date | Nov 29, 2022 |
| Priority date | — |
| Expiry date | Nov 19, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/40
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An organic light emitting diode including a plurality delayed fluorescent materials with specific energy levels and an organic light emitting device including the diode is disclosed. When the plurality delayed fluorescent materials with specific energy levels are applied in an emitting material layer, it is possible to minimize the energy loss or exciton quenching during luminous process and to prevent the diode from reducing life span caused by the exciton quenching. When the emitting material layer includes other luminous material having a narrow FWHM, the organic light emitting diode can enhance its color purity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.