Tri-color ZnSe white light emitting diode
US6919582B2 · kind B2 · utility
2Cited by
2References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 20, 2003 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Jan 6, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/851
Abstract
A Tri-color ZnSe white light emitting diode includes at least a ZnSe LED chip, a blue emission layer, and a green fluorescent powder. Each of ZnSe LED chip is a white light source. The blue emission layer is formed on the ZnSe LED chip to emit blue wavelength light, which shines the ZnSe LED chip to produce yellow light. The green fluorescent powder is covered onto ZnSe LED chip capable of absorbing blue light emitted from the blue emission layer to emit green wavelength light, so that mixing the blue light, yellow light, and green light to produce the white light emitting diode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.