Keyboard device
US10276325B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 3, 2017 |
| Grant date | Apr 30, 2019 |
| Priority date | — |
| Expiry date | Aug 17, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2221/084
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A keyboard device includes a light guide plate, a base plate, plural keys and plural surround-type soundproof elements. The base plate is located over the light guide plate. The plural keys are connected with the base plate. The membrane circuit board is arranged between the plural keys and the base plate. The plural surround-type soundproof elements are aligned with the corresponding keys. Each surround-type soundproof element is disposed on the light guide plate, the base plate or the membrane circuit board. While one of the plural keycaps is depressed and moved downwardly relative to the base plate, a sealed space is defined by the corresponding keycap and the corresponding surround-type soundproof element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.