Display device with emission region having multiple emission layers
US12396346B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 17, 2021 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Aug 15, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2102/351
Abstract
A display device includes a base layer including first and second emission regions, first and second electrodes, a first organic layer in the first emission region, and a second organic layer in the second emission region. The first organic layer includes a first electron transport layer, a first auxiliary layer on the first electron transport layer, a first emission layer on the first auxiliary layer, a second auxiliary layer on the first emission layer, and a first hole transport layer on the second auxiliary layer. The second organic layer includes a second electron transport layer, a third auxiliary layer on the second electron transport layer, a second emission layer on the third auxiliary layer, a fourth auxiliary layer on the second emission layer, and a second hole transport layer on the fourth auxiliary layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.