Vented membrane-type touch panel
US4066855A · kind A · utility
103Cited by
12References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 22, 1976 |
| Grant date | Jan 3, 1978 |
| Priority date | — |
| Expiry date | Nov 22, 1996 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H13/82
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A location sensitive touch panel for use on a rigid substrate. The substrate carries a first set of conductive strips. A resilient plastic membrane overlaying it carries a second set of conductive strips orthogonal to and spaced from the first set. Finger pressure can cause electrical contact between any one of the first set of strips and any one of the second set of strips. The substrate may be either flat or curved, with the membrane conforming to its contour. A vent in the membrane allows the membrane to assume its natural shape more quickly by allowing air to flow between the substrate and the membrane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.