Resistive touch sensor having microstructured conductive layer
US7019734B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 17, 2002 |
| Grant date | Mar 28, 2006 |
| Priority date | — |
| Expiry date | Nov 3, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/045
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention discloses resistive touch sensors that incorporate microstructured conductive layers. When local electrical contact is made between the microstructured conductive layer and an opposing conductive layer due to a touch input, the resulting signal can be used to determine the location of the touch. The microstructures can be used to penetrate a solid, deformable filler material disposed between the conductive layers, for example to provide more transmission of light through the sensor. The microstructures can also provide additional functionalities such as z-axis sensitivity, image direction, light control, light extraction, and so forth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.