Light-emitting device and electronic apparatus including the same
US12433155B2 · kind B2 · utility
0Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 22, 2020 |
| Grant date | Sep 30, 2025 |
| Priority date | — |
| Expiry date | Apr 19, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/90
Abstract
A light-emitting device includes a hole transport region including two layers each including a Compound A group, a Compound B group, or any combination thereof, wherein the Compound A group includes one or two amine groups, and the amine group includes a fluorene moiety, a carbazole moiety, a dibenzofuran moiety, a dibenzothiophene moiety, a dibenzosilole moiety, or any combination thereof, and the Compound B group does not includes an amine group, and includes a fluorene moiety, a carbazole moiety, a dibenzofuran moiety, a dibenzothiophene moiety, a dibenzosilole moiety, or any combination thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.