Display device having touch sensor reducing limit in driving time of pixel array and driving time of touch sensor and method for driving the same
US9310942B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 2012 |
| Grant date | Apr 12, 2016 |
| Priority date | — |
| Expiry date | Apr 17, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0446
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to an embodiment, a touch-sensitive display device includes a display panel including data lines, gate lines crossing the data lines, and a pixel array including pixels arranged in a matrix form; a touch screen including Tx lines, Rx lines crossing the Tx lines, and touch sensors formed at crossings of the Tx lines and the Rx lines; a display driving circuit configured to supply video data voltages to the pixels of the display panel; and a touch screen driving circuit configured to sequentially supply at least one delayed pulse to each of the Tx lines, and sense an output signal of each of the touch sensors through the Rx lines, wherein an edge of each of the at least one delayed pulse is present in a horizontal blank period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.