Films with narrow band emission phosphor materials
US12331208B2 · kind B2 · utility
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34Claims
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Key dates
| Filing date | Jan 5, 2023 |
| Grant date | Jun 17, 2025 |
| Priority date | — |
| Expiry date | Jan 5, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/882
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A color conversion film is provided. The film includes at least one narrow band emission phosphor dispersed within a binder matrix, wherein the narrow band emission phosphor has a D50 particle size from about 0.1 μm to about 15 μm and is selected from the group consisting of a green-emitting U6+-containing phosphor, a green-emitting Mn2+-containing phosphor, a red-emitting phosphor based on complex fluoride materials activated by Mn4+, and a mixture thereof. A device is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.