Multicolor transparent computer keyboard
US7847204B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 18, 2007 |
| Grant date | Dec 7, 2010 |
| Priority date | — |
| Expiry date | Oct 5, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2219/034
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A multicolor transparent computer keyboard for operating a computer in a dark environment includes transparent keypads each on a top including spaced transparent color layers occupying four corners and being different in color from each other, an opaque layer on the color layers and having portions overlapped with the color layers being removed, and characters printed on the opaque layer; bridges pivotably interconnecting the key caps and an underlying transparent frame plate; a PCB under the frame plate; and a luminescence panel under the PCB and including cells each below the key cap, each cell including regions of different colors and adapted to electrically activate to upward emit light which is adapted to show multi-color when passing a gap between the color layers and show a backlit color when passing one of the color layers. The backlit color of each color layer is different from that of another color layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.