Infrared-emitting compound, and luminescent thin film, luminescent particle, wavelength conversion film and infrared-emitting surface light source containing same
US12410366B2 · kind B2 · utility
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Key dates
| Filing date | Feb 21, 2020 |
| Grant date | Sep 9, 2025 |
| Priority date | — |
| Expiry date | Aug 13, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K85/652
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
An infrared-emitting compound has a structure represented by the following Formula (1a). In Formula (1a), Ar and ring A each independently represent an aryl ring, a heteroaryl ring or a fused ring thereof. Q-Ar represents an infrared-emitting residue. R1 represents a group in which a dihedral angle between Ar and ring A is 45 degree or more. And a thick line represents a single bond or a double bond.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.