Organic light emitting device
US11825687B2 · kind B2 · utility
0Cited by
20References
19Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Jul 10, 2020 |
| Grant date | Nov 21, 2023 |
| Priority date | — |
| Expiry date | Aug 4, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An OLED device comprises a substrate, a first electrode positioned over the substrate, a second electrode positioned over the first electrode, at least one emissive layer positioned between the first and second electrodes in a first region of the OLED device, and a multilayer dielectric reflector stack, comprising a plurality of dielectric reflector layers positioned between the substrate and the first electrode, wherein the multilayer dielectric reflector stack is configured to form an optical cavity with the emissive layer having a Purcell Factor of at least 3.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.