White-light-emitting composite film comprising polyfluorene derivatives and red light quantum dots, its manufacture method, and white light organic electroluminescent device
US9905789B2 · kind B2 · utility
2Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2014 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Jun 25, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disclosed are a light-emitting composite film, its manufacture method, and a white light organic electroluminescent device. Said light-emitting composite film comprises a first light-emitting layer and a second light-emitting layer. The first light-emitting layer comprises polyfluorene or polyfluorene derivatives, and the second light-emitting layer comprises quantum dots. A variety of color gamut and an improved brightness of devices can be achieved by the light-emitting composite film.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.