Luminous keyboard
US8604370B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 2011 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | May 20, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/062
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plurality of light-transmittable or transparent keycaps is disposed on a luminous keyboard. Between a bottom surface of each keycap and a circuit board, printed layers with various patterns corresponding to each keycap are disposed therebetween. The pattern of each printed layer is composed by a light-transmittable section and an opaque section. A light source module, which is composed by a light guide plate and a light emitting diode, can further be added to the luminous keyboard, under each keycap, so as to provide a self luminous light source for the keyboard. With the light-transmittable or transparent keycaps, the patterns or texts of the printed layers can be shown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.