Method for detecting touch points of touch control device
US8179373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 3, 2008 |
| Grant date | May 15, 2012 |
| Priority date | — |
| Expiry date | Nov 20, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/045
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for detecting touch points of touch control device is disclosed. The touch control device comprises a first substrate having a first conductive layer and a second substrate having a second conductive layer. The first and second conductive layers are respectively connected to a control circuit which is coupled to a microcontroller. The control circuit performs driving on the first conductive layer to generate a gradient potential, and performs scanning on the second conductive layer to determine a first-axis coordinates. Then the control circuit drives the second conductive layer to generate a gradient potential, and performs scanning on the first conductive layer to determine the second-axis coordinates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.