Light-emitting element, light-emitting device, display device, electronic appliance, and lighting device
US9660211B2 · kind B2 · utility
19Cited by
8References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 12, 2015 |
| Grant date | May 23, 2017 |
| Priority date | — |
| Expiry date | Jun 12, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/90
Abstract
A multicolor light-emitting element using fluorescence and phosphorescence, which has a small number of manufacturing steps owing to a relatively small number of layers to be formed and is advantageous for practical application can be provided. In addition, a multicolor light-emitting element using fluorescence and phosphorescence, which has favorable emission efficiency is provided. A light-emitting element which includes a light-emitting layer having a stacked-layer structure of a first light-emitting layer exhibiting light emission from a first exciplex and a second light-emitting layer exhibiting phosphorescence is provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.