Keyboard device
US9165729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 15, 2013 |
| Grant date | Oct 20, 2015 |
| Priority date | — |
| Expiry date | Oct 15, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2217/046
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A keyboard device is located in an accommodating space of a housing having first openings and a second opening. The keyboard device includes a flexible body and a transparent liquid. The flexible body is located in the accommodating space, and includes a main body, first pressing portions, patterns, and a second pressing portion. The first pressing portions are respectively located in the first openings. The patterns are located on the main body or the first pressing portions and are respectively exposed through the first openings. The second pressing portion is located in the second opening. The main body, and the first and second pressing portions have an enclosure space therein. The transparent liquid is located in the enclosure space. When the second pressing portion is pressed, the first pressing portions expand to protrude from the first openings, such that the patterns are enlarged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.