Full-color light source unit
US6540377B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2000 |
| Grant date | Apr 1, 2003 |
| Priority date | — |
| Expiry date | Nov 13, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2224/48465
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A light-emitting system has a base, and LEDs disposed on a front surface of the base. The alignment of the LEDs includes a first group of LEDs each having first and second electrodes on a light-emitting surface side, and a second group of LEDs each having a first electrode on the light-emitting surface side and a second electrode on the base side. The first group of LEDs and the second group of LEDs are arranged alternately in a line on the front surface of the base. The first group of LEDs includes at least one blue LED and green LEDs larger in number than the blue LED. The second group of LEDs includes red LEDs larger in number than the blue LED. A full-color light source unit is provided that includes the first and second groups of LEDS.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.