Light emitting device and lighting device comprising resonance auxiliary layer
US11864401B2 · kind B2 · utility
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17Claims
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Key dates
| Filing date | Jun 12, 2020 |
| Grant date | Jan 2, 2024 |
| Priority date | — |
| Expiry date | Aug 14, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
A light emitting device includes a substrate; a first electrode disposed on the substrate; an organic material layer disposed on the first electrode and including a first resonance auxiliary layer; and a second electrode disposed on the organic material layer, wherein the first resonance auxiliary layer includes a first compound with a lowest unoccupied molecular orbital (LUMO) level of −4 eV or less and a second compound with a highest occupied molecular orbital (HOMO) level of −4 eV or less, and wherein the first resonance auxiliary layer has a thickness of 20% to 90% of a total thickness of the organic material layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.