Electroluminescent materials
US6653654B1 · kind B1 · utility
31Cited by
4References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 1, 2002 |
| Grant date | Nov 25, 2003 |
| Priority date | — |
| Expiry date | May 1, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/917
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Highly luminous, thermally stable and moisture-resistant light-emitting material derived from quadridentate ONNO-type ligands and a Group 10 metal were employed as emissive dopants in organic light-emitting devices. The dopants have molecular structures represented by the formula I and II: wherein M represents Group 10 metal (including platinum) and R1-R14 are each independantly selected from the group consisting of hydrogen; halogen; alkyl; substituted alkyl; aryl; substituted aryl, with substitutents selected from the group consisting of halogen, lower alkyl and recognized donor and acceptor groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.