Organic electroluminescent device
US11925042B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Aug 31, 2020 |
| Grant date | Mar 5, 2024 |
| Priority date | — |
| Expiry date | Feb 1, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
The present disclosure relates to an organic electroluminescent device, in which co-host materials with a specific P:N ratio are used, and the energy level and mobility of the materials of the functional layers are adjusted to be within specific ranges, so that good device performances could be produced under a plurality of P:N ratios, thereby providing more possibilities for the selection of devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.