Organic electroluminescent devices
US12414433B2 · kind B2 · utility
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56References
20Claims
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Key dates
| Filing date | Feb 3, 2023 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Mar 20, 2044 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/331
Abstract
Emissive devices are provided that include an outcoupling layer having a plurality of nanoparticles such that the outcoupling layer has at least 3 regions possessing distinct bulk refractive index values. One or more dielectric materials are arranged at least partially between the outcoupling layer and an emissive layer of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.