Light-emitting devices
US6828724B2 · kind B2 · utility
112Cited by
6References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 11, 2002 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Jan 28, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K50/125
Abstract
A light-emitting device comprising a first electroluminescent element for emitting light of a first color when energized and a second electroluminescent element for emitting light of a second color when energized, characterized in that dimensions of the first and second elements and any spacing therebetween are selected to create an overall impression of a single light source when simultaneously energized and viewed as intended.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.