Positioning method for touch display panel
US8963879B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2012 |
| Grant date | Feb 24, 2015 |
| Priority date | — |
| Expiry date | May 1, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0447
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A positioning method for a touch display panel is provided. The touch display panel includes a touch panel and a display panel. The display panel is disposed on the touch panel, and sensing points and reference positions are set on the touch panel. In the method, pressures with different values are repeatedly applied to each reference position; under the pressures with the different values, average capacitance values of the reference positions corresponding to the sensing points are calculated. When an object touches the display panel, the sensing points of the touch panel correspondingly generate second capacitance values. Under a touch pressure value, the average capacitance values of the reference positions corresponding to the sensing points are selected. The second capacitance values and the average capacitance values of the reference positions corresponding to the sensing points under the touch pressure value are used to calculate a touch position of the object.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.