Reducing bending effects in touch sensor devices
US9134397B2 · kind B2 · utility
3Cited by
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24Claims
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Key dates
| Filing date | Mar 13, 2013 |
| Grant date | Sep 15, 2015 |
| Priority date | — |
| Expiry date | Nov 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0447
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A capacitive image sensor for detecting an input object includes a first substrate and a second substrate. A compressible region is defined between the first substrate and the second substrate. The first substrate is deflectable towards the second substrate. A transmitter electrode, receiver electrode, and bending effect electrode are disposed on the first substrate. The bending effect electrode is disposed between the transmitter electrode and receiver electrode and is configured to reduce a change in resulting signals detected from the receiver electrode caused by deflection of the first substrate towards the second substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.