Touch sensing apparatus and driving method thereof
US9058072B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 28, 2012 |
| Grant date | Jun 16, 2015 |
| Priority date | — |
| Expiry date | May 10, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0223
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A touch sensing apparatus according to an embodiment of the present invention includes: a display device including a plurality of pixels and displaying an image; a touch screen including a plurality of touch sensors and being included in the display device; display panel driving circuits for driving the display device; a touch sensing circuit for applying a driving signal to the touch sensors to sense a voltage or capacitance variation in the touch sensors; a controller for time-dividing a first frame period into a first driving period for displaying an image on the display device and a second driving period for sensing the touch sensors; and a reset control circuit for controlling operations of the display panel driving circuits with a reset enable signal to initialize the pixels of the display device to an equivalent reset voltage at predetermined intervals between the first driving period and the second driving period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.