Mixed-color light emitting diode apparatus, and method for making same
US7471040B2 · kind B2 · utility
12Cited by
12References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 13, 2004 |
| Grant date | Dec 30, 2008 |
| Priority date | — |
| Expiry date | Nov 5, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2924/0002
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A mixed-color light emitting diode (LED) apparatus may be made by forming a pixellated array of LEDs on a substrate, and then placing phosphors over at least some of the LEDs. The phosphors are chosen to convert light emitted by the LEDs to one or more different colors. The LEDs may be lithographically printed on the substrate, and the phosphors may be lithographically printed on the LEDs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.