Red light thermally activated delayed fluorescence material, method for preparing the same, and organic light emitting diode device
US11326096B2 · kind B2 · utility
0Cited by
0References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 18, 2019 |
| Grant date | May 10, 2022 |
| Priority date | — |
| Expiry date | Sep 9, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/20
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A red light thermally activated delayed fluorescence material, a method for preparing the same, and an organic light emitting diode (OLED) device are provided. The OLED device has a luminescent material layer containing the red light thermally activated delayed fluorescence material. The red light thermally activated delayed fluorescence material has a specific molecular structure. The OLED device has a maximum brightness ranging from 1300 to 1800 cd/m2 and a maximum current efficiency ranging from 25 to 35 cd/A.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.