Keyboard having a lighting system
US6987466B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 8, 2002 |
| Grant date | Jan 17, 2006 |
| Priority date | — |
| Expiry date | Jun 3, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A keyboard and methods of making the same. The keyboard comprises of a bottom conducting base plate, an illumination layer, a transparent top conducting layer, a light transmissive keyboard membrane, and a plurality of input keys. The illumination layer is deposited on the bottom conducting base plate. The transparent top conducting layer is deposited on the illumination layer. The light transmissive keyboard membrane is disposed on the transparent top conducting layer. And, the plurality of input keys is disposed on the light transmissive keyboard membrane wherein each of the plurality of input keys has a keyswitch mechanism and a keycap including an upper strike surface attached to the keyswitch mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.