Monolitholic LED chip to emit multiple colors
US7271420B2 · kind B2 · utility
270Cited by
11References
16Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 2005 |
| Grant date | Sep 18, 2007 |
| Priority date | — |
| Expiry date | Oct 3, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/825
Abstract
A light emitting diode chip with red, green and blue light emission regions on a single substrate. The light emission regions may be powered selectively to only emit one color light at a time. Or all three regions may be powered simultaneously so that the LED chip emits white light.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.