Fluoride phosphor, fabricating method thereof, and light-emitting apparatus and backlight module employing the same
US9879178B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2016 |
| Grant date | Jan 30, 2018 |
| Priority date | — |
| Expiry date | Aug 31, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/8513
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a method for fabricating a fluoride phosphor. A first solution is formed by dissolving potassium fluoride (KF) and either K2MnF6 or KMnO4 in a hydrofluoric acid solution. A second solution is formed by mixing a surfactant and a silane. The first solution and the second solution are mixed to form a precipitate. The precipitate is collected after the first solution and the second solution are mixed. The present invention also provides a fluoride phosphor represented by the following formula: K2[SiF6]:Mn4+. The fluoride phosphor has a particle size in a range of about 1 μm to about 10 μm. The present invention further provides a light-emitting apparatus and backlight module employing the same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.