Keyboard with back-lighted ultra-durable keys
US8870477B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2009 |
| Grant date | Oct 28, 2014 |
| Priority date | — |
| Expiry date | Jun 24, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2223/002
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A key for a keyboard includes a keycap having a top surface configured to be contacted for pressing the key down, and having a bottom. The keycap is substantially transparent. An intermediate layer is coupled to the bottom of the keycap. The intermediate layer is translucent and includes a top and a bottom. The top of the intermediate layer faces the bottom of the keycap. A character layer is positioned between the bottom of the keycap and the top of the intermediate layer. A resilient member is coupled to the bottom of the intermediate layer. The resilient member is translucent and is configured to direct light through the intermediate layer, through the character layer, and out from the keycap. The character layer is configured to be lighted for viewing through the keycap.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.