Organic light-emitting device
US11706937B2 · kind B2 · utility
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4References
20Claims
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Key dates
| Filing date | Nov 3, 2020 |
| Grant date | Jul 18, 2023 |
| Priority date | — |
| Expiry date | Dec 11, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; m emission units stacked between the first electrode and the second electrode, each emission unit including at least one emission layer; and m−1 charge generating layers respectively located between two adjacent emission units among them emission units, each of the charge generating layers including one n-type charge generating region and one p-type charge generating region, wherein m is an integer of 2 or more, and at least one of the m−1 p-type charge generating regions includes a phosphate-containing compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.