Capacitive touch sensor, touch detection device and touch terminal
US8803823B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 23, 2011 |
| Grant date | Aug 12, 2014 |
| Priority date | — |
| Expiry date | Aug 21, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03K2217/96077
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to touch detection technology and provides a capacitive touch sensor which comprises a driving electrode layer and a sensing electrode layer. An insulating isolation layer is disposed between the sensing electrode layer and the driving electrode layer. A touch panel is disposed over the sensing electrode layer, and the sensing electrode layer has hollowed-out sensing electrodes. The present invention provides a new sensor structure in which the sensing electrode layer (such diamond, rectangular, round etc.) is hollowed-out to improve sensitivity of touch detection and the signal to noise ratio (SNR).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.