CAPACITIVE IN-CELL TOUCH PANEL AND DISPLAY DEVICE

摘要

The embodiments of the present invention disclose a capacitive in-cell touch panel and a display device, which are configured so that the entirety of a common electrode layer in an array substrate is divided into a plurality of touch sensing electrodes and a plurality of touch driving electrodes insulated from each other; at least one data signal line is used through time division multiplex access as a touch read signal line, thus production cost is saved and production efficiency is improved; and the respective touch read signal line is connected with a corresponding touch sensing electrode through at least one signal switch unit. During a display period, the touch driving electrodes and the touch sensing electrodes are applied with a common electrode signal to achieve a normal display function; and during a touch period, the touch driving electrodes are applied with a touch scan signal, and the signal switch units are switched on, through which the touch scan signal coupled with the touch sensing electrodes is outputted to the touch read signal line.

主权项

1. A capacitive in-cell touch panel comprising an array substrate having a plurality of data signal lines and a common electrode layer, wherein,
the common electrode layer comprises a plurality of touch sensing electrodes and a plurality of touch driving electrodes insulated from each other; at least one data signal line is used as a touch read signal line during a touch period, a plurality of signal switch units are provided in the array substrate, and the respective touch read signal line is connected with a corresponding touch sensing electrode through at least one of the signal switch units; during a display period, the touch driving electrodes and the touch sensing electrodes are applied with a common electrode signal; and during the touch period, the touch driving electrodes are applied with a touch scan signal, the signal switch units are switched on, through the signal switch units which are switched on, the touch scan signal coupled by the touch sensing electrodes is outputted to the touch read signal line.