Display Device Having Touch Sensor and Driving Method Thereof

摘要

A method for driving a display device including a display panel including a first and a second display area each of which is divided into a plurality of display blocks and n touch blocks comprises a first and a second step. The first step drives the respective display blocks of the first display area sequentially, drives at least one touch block after driving the display blocks, and generates a first touch report after driving all of the n touch blocks. The second step drives the respective display blocks of the second display area sequentially, drives at least one touch block after driving the display blocks, and generates a second touch report after driving the n touch blocks again. The first and the second step are processed within one frame period, and the one frame period includes a vertical blanking interval void of input image data.

主权项

1. A touch sensitive display device comprising:
a display panel including a plurality of pixels having at least a first block of pixels, a second block of pixels, the display panel being driven in a first frame period that includes a vertical active period and a vertical blanking period; driver circuitry to:
drive display data to the first block of pixels during a first display period within the vertical active period of the first frame period;drive one or more touch driving signals to one or more first touch electrodes during a first touch period that is within the vertical active period and after the first display period of the vertical active period;drive display data to the second block of pixels during a second display period that is within the vertical active period and after the first touch period of the vertical active period; anddrive one or more touch driving signals to one or more second touch electrodes during a second touch period, the second touch period being after the second display period of the vertical active period and having at least a first part occurring in the vertical active period of the first frame period and a second part occurring in the vertical blanking period of the first frame period, wherein the first part of second touch period and the second part of the second touch period are not separated by an intervening display period.