Touch sensing device, touch sensing circuit, data driving circuit, and display device driving method

摘要

The present disclosure provides a touch sensing device, a touch sensing circuit, a data driving circuit, and a display device driving method, which make it possible to activate different sensing areas according to a finger mode and a hover mode, and which activate as many sensing areas as possible simultaneously in a hover mode, which means sensing driving in the case of non-contact with regard to sensing areas, thereby enhancing sensing sensitivity, and improving sensing detection performance even in the hover mode.

主权项

1. A touch integrated display device, comprising:
a display panel including a plurality of touch electrodes, the display panel operated in a display period of a frame or a touch period of the frame; and a touch driver circuit to provide a common voltage to the touch electrodes during the display period and to drive the touch electrodes with a touch drive signal during the touch period to detect a touch sensing signal responsive to a touch from the touch electrodes, wherein: in a first touch mode, the touch driver circuit drives a first number of the touch electrodes with the touch drive signal during the touch period, and in a second touch mode, the touch driver circuit drives a second number of the touch electrodes with the touch drive signal during the touch period, the second number of the touch electrodes being greater than the first number of the touch electrodes, wherein a load-free driving signal having a same phase or amplitude as the touch drive signal is driven to one or more data lines or one or more gate lines of the display panel, during the touch period while the touch driver circuit drives the second number of the touch electrodes with the touch drive signal in the second touch mode.