Touch panel and drive circuit thereof
US9733755B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Sep 9, 2015 |
| Grant date | Aug 15, 2017 |
| Priority date | — |
| Expiry date | Jan 31, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/0297
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A drive circuit of a touch panel includes a signal selection circuit and a de-multiplexing circuit, where in a display phase, the signal selection circuit is configured to forward a display signal to the de-multiplexing circuit, which is configured to de-multiplex the display signal and transmit signals resulting from the de-multiplexing of the display signal to the data lines; and in a touch phase, the signal selection circuit is configured to forward a touch driving signal to the de-multiplexing circuit, which is configured to de-multiplex the touch driving signal and transmit signals resulting from the de-multiplexing of the touch driving signal to the data lines, so that the pulse signals on the data lines are identical to the pulse signals on the touch driving signal lines and touch electrodes in the touch phase due to the signal selection circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.