Device and method for preventing the influence of conducting material from point detection of projected capacitive touch panel
US8546705B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 19, 2009 |
| Grant date | Oct 1, 2013 |
| Priority date | — |
| Expiry date | Oct 26, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
This invention provides a device for preventing the influence of conducting material from point detection of projected capacitive touch panel. The device includes a first sensing layer having a plurality of first axial conductive lines isolated from each other and electrically connected to a plurality of first outside-connection conducting wires correspondingly, a second sensing layer having a plurality of second axial conductive lines isolated from each other and electrically connected to a plurality of second outside-connection conducting wires correspondingly, a signal driving line electrically connecting to the first and the second outside-connection conducting wires to provide a first sensing signal, and a sensing unit electrically connecting the first and the second outside-connection conducting wires to sense the sensing signal on the first and the second axial conductive lines. Wherein, the second sensing layer is on a dielectric layer, the first sensing layer, and a substrate in sequence.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.