Organic light-emitting device and display apparatus including the same
US9673413B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2015 |
| Grant date | Jun 6, 2017 |
| Priority date | — |
| Expiry date | Jun 2, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/166
Abstract
An organic light-emitting device including a first electrode, a hole transport region on the first electrode, a light-emitting layer on the hole transport region, an electron transport region on the light-emitting layer, and a second electrode on the electron transport region. The electron transport region includes a first mixed electron transport layer and a second mixed electron transport layer on the first mixed electron transport layer. The first mixed electron transport layer includes a first electron transport compound and a second electron transport compound different from the first electron transport compound. The second mixed electron transport layer includes the first electron transport compound and a third electron transport compound different from the first electron transport compound and the second electron transport compound.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.