Curved surface sensor pattern
US9465490B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 2013 |
| Grant date | Oct 11, 2016 |
| Priority date | — |
| Expiry date | Apr 15, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F2203/04103
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensor includes a flexible substrate, a plurality of sense electrodes and a plurality of drive electrodes disposed on the flexible substrate, a plurality of electrode branches, and a central spine. Each of the plurality of sense and drive electrodes includes electrode teeth, and electrode teeth of the sense electrodes are interdigitated with electrode teeth of the drive electrodes. Each particular electrode branch includes a portion of at least one of the drive electrodes and a portion of at least one of the sense electrodes. The central spine includes tracks that are coupled to the sense and drive electrodes. When the touch sensor is not formed into a three-dimensional shape, at least a portion of one of the electrode branches is separated from an adjacent electrode branch by a gap. When the touch sensor is formed into a three-dimensional shape, the gap is substantially eliminated, thereby forming a substantially continuous touch-sensitive surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.