Projected capacitive touch panel
US9367180B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 1, 2010 |
| Grant date | Jun 14, 2016 |
| Priority date | — |
| Expiry date | Feb 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A projected capacitive touch panel has a substrate, an X-axis electrode layer formed on a top of the substrate and a Y-axis electrode layer formed on a bottom of the substrate. The X-axis and the Y-axis electrode layers respectively have a plurality of X-axis electrodes and Y-axis electrodes arranged in a matrix form and respectively connected with a plurality of X-axis and Y-axis signal transmission lines. Each of the X-axis signal transmission lines and the Y-axis signal transmission lines is connected with a conversion module. The conversion modules is mounted to be adjacent to the X-axis and Y-axis signal transmission lines, converts analog signals into relatively stable digital signals, and transmits the digital signals to an external controller to determine coordinates being touch. Accordingly, lengths of the X-axis and Y-axis signal transmission lines can be shortened and the size of a control area of the touch panel can be enlarged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.