System and method for illuminating a keyboard or keypad input device
US7781688B2 · kind B2 · utility
1Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 17, 2007 |
| Grant date | Aug 24, 2010 |
| Priority date | — |
| Expiry date | Apr 26, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illuminated keyboard has at least one key carried by a support structure and operable to close an electrical contact on being depressed from above, the at least one key having a translucent top surface, a hollow space under the translucent top surface, and an opening into the hollow space other than through the top surface, and an electroluminescent illuminator comprising a region of electroluminescent material enabled to be inserted into the hollow space through the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.