Capacitive incell touch panel and display apparatus

摘要

The present disclosure provides a capacitive in-cell touch panel and a display apparatus, wherein touch sensing electrodes are set on a color filter substrate, a common electrode layer connected as a whole plane on a TFT array substrate is divided into strips to be used as touch driving electrodes, and metal driving electrodes directly electrically connected to the corresponding touch driving electrodes are set on the TFT array substrate so as to reduce resistance of the touch driving electrodes. The embodiments of the disclosure can save the production cost and improve the production efficiency. Moreover, the touch function and the display function are driven in a time division manner, and thus the production cost can be further reduced, and the picture quality and touch accuracy can be enhanced.

主权项

1. A capacitive in-cell touch panel including: a color filter substrate, a thin film transistor (TFT) array substrate having a common electrode layer, and a liquid crystal layer between the color filter substrate and the TFT array substrate, wherein a plurality of pixel units arranged in a matrix are arranged on the TFT array substrate; wherein, the common electrode layer is divided into a plurality of touch driving electrodes and common electrodes extending along a direction of row of the pixel units, the common electrodes are insulated from the touch driving electrodes and at least one common electrode is arranged between two adjacent touch driving electrodes;
the color filter substrate has a plurality of touch sensing electrodes, each of which is extended along the direction of columns of the pixel units; during a display period of a frame of picture, each of the touch driving electrodes is used to transmit a common electrode signal and a touch scanning signal in a time division manner, and the common electrode only transmits the common electrode signal; the TFT array substrate has a plurality of metal driving electrodes, each of which is extended along the direction of rows of the pixel units; each of the metal driving electrodes is located in a gap between adjacent pixel units and is directly electrically connected to a corresponding touch driving electrode.