Organic light emitting device and display device having the same
US9991446B2 · kind B2 · utility
3Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 22, 2015 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Apr 20, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/6572
Abstract
An organic light emitting device including a first electrode, a hole transport region on the first electrode, a light emission layer on the hole transport region, a buffer layer on the light emission layer, an electron transport region on the buffer layer, and a second electrode on the electron transport region. The buffer layer includes at least one selected from the group consisting of a carbazole derivative, a phenanthroline derivative, a triazole derivative, and a quinolinolato-based metal complex.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.