CAPACITIVE IN-CELL TOUCH PANEL AND DISPLAY DEVICE

摘要

In a capacitive in-cell touch panel and a display device, a common electrode layer electrically connected over the entire surface in a TFT array substrate is partitioned into touch sensing electrodes and touch driving electrodes that are driven in a time-division manner to realize touch function and display function.

主权项

1. A capacitive in-cell touch panel comprising a thin film transistor (TFT) array substrate having gate signal lines, data signal lines and a common electrode layer, the common electrode layer being over the gate signal lines and the data signal lines, and the TFT array substrate comprising a plurality of pixel units arranged in matrix,
wherein the common electrode layer comprises touch sensing electrodes and touch driving electrodes insulated with each other, and partitioning gaps between the touch sensing electrodes and the touch driving electrodes are opposite to gaps between pixel units of adjacent rows and adjacent columns; in a display period, the touch driving electrodes and the touch sensing electrodes are applied with a common electrode signal; and in a touch control period, the touch driving electrodes are applied with a touch scan signal and the touch sensing electrodes are used to couple with and output a voltage signal of the touch scan signal; the TFT array substrate comprises first metal driving electrodes and/or first metal inductive electrodes over the data signal lines and between pixel units of adjacent columns; the first metal driving electrodes are electrically connected with corresponding touch driving electrodes, and the first metal inductive electrodes are electrically connected with corresponding touch sensing electrodes.