Organic light-emitting compositions having multiple triplet-accepting materials, and devices and methods thereof
US10205114B2 · kind B2 · utility
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Key dates
| Filing date | Aug 28, 2015 |
| Grant date | Feb 12, 2019 |
| Priority date | — |
| Expiry date | Aug 28, 2035 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2205/02
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composition suitable for use in an organic light-emitting layer (103) of an organic light-emitting device having an anode (101) and a cathode (105), the composition comprising a fluorescent light-emitting material, a first triplet-accepting material and a second triplet-accepting material that is different from the first triplet-accepting material. The fluorescent light-emitting material may be a repeat unit of a light-emitting polymer, and the first and second triplet-accepting materials may independently be repeat units of the light-emitting polymer or may be mixed with the fluorescent light-emitting material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.