Backlit keyboard using two thin-film circuit boards
US10056206B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Mar 28, 2017 |
| Grant date | Aug 21, 2018 |
| Priority date | — |
| Expiry date | Mar 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2221/07
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A direct-backlit keyboard is disclosed, the direct-backlit keyboard comprising a plurality of keys, a thin film circuit board, a base plate, a copper etched thin-film circuit board, and a plurality of light-emitting units. The plurality of keys are disposed on the thin film circuit board, the thin film circuit board being disposed on the base plate, the base plate being disposed on the copper etched thin-film circuit board, and the copper etched thin film circuit board being provided with the plurality of light-emitting units. Each light-emitting unit corresponds to each key so that the light emitted from each light-emitting unit can be transmitted to each corresponding key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.