Touch panel and method for detecting touch position thereof and touch display apparatus
US8780079B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 16, 2011 |
| Grant date | Jul 15, 2014 |
| Priority date | — |
| Expiry date | Jul 4, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention provides a touch panel, a method for detecting touch positions thereof and a touch display apparatus. The touch panel comprises first sensing pads arranged along a first direction, second sensing pads arranged along a second direction and third sensing pads arranged along a third direction. The method comprises the following steps: detecting a capacitance variation of the first sensing pads; detecting a capacitance variation of the second sensing pads; detecting a capacitance variation of the third sensing pads; and determining the at least one touch position according to the capacitance variation of the sensing pads. The present invention can improve the ghost-point problem of multiple touching.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.