Phosphor sheet, LED and light emitting device using the same and method for manufacturing LED
US9117979B2 · kind B2 · utility
1Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 2011 |
| Grant date | Aug 25, 2015 |
| Priority date | — |
| Expiry date | Dec 1, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/10
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The present invention provides a phosphor sheet in which the optical properties thereof are not impaired and which exhibits excellent film thickness uniformity even when comprising large-sized phosphor particles in high concentration. In one embodiment, the invention provides a phosphor sheet in which the content of phosphor is 53 weight % or more of the total sheet, and in another embodiment, a phosphor sheet includes at least a silicone resin, a phosphor and silicone fine particles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.