Blue luminescent material of platinum complex and organic light-emitting device
US10199583B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 18, 2018 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Sep 18, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K2101/10
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present disclosure provides a blue luminescent material, and the blue luminescent material is a tertradentate platinum complex having a chemical structure of Formula I comprising a pyridoimidazole carbene platinum structure. The blue luminescent material of the present disclosure may be used in OLED devices and apparatus as a dopant material and emits blue light having a wavelength of 450-490 nm. The present disclosure provides a design route for a material by introducing a pyridoimidazole-type carbene into the ligand of a platinum complex. Since the carbene structure has suitable triplet energy and its carbon-platinum bond is more stable than the nitrogen-platinum bond, the entire spectrum can become narrower, which will promote development of blue luminescent material and improve performances of the devices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.