Capacitive in cell touch panel and driving method thereof, display device

摘要

Embodiments of the present invention disclose a capacitive in-cell touch panel, a driving method thereof and a display device. Touch sensing electrodes extended along the row direction of pixel units are arranged on a color filter substrate; a thin-film transistor (TFT) array substrate adopts a dual gate structure, that is, two gate signal lines are disposed between every two adjacent rows of pixel units; every two adjacent columns of pixel units are taken as a group of pixel unit columns and share a data signal line disposed between the two pixel unit columns, so that the positions of a part of data signal lines can be saved; and touch driving electrodes for achieving the touch function are arranged at the saved positions of the data signal lines.

主权项

1. A capacitive in-cell touch panel, comprising: a color filter substrate, a thin-film transistor (TFT) array substrate and a liquid crystal layer disposed between the color filter substrate and the TFT array substrate, wherein
the capacitive in-cell touch panel is formed with a plurality of pixel units arranged in a matrix; two gate signal lines are disposed between every two adjacent rows of pixel units in the TFT array substrate, every two adjacent columns of pixel units being are taken as a group of pixel unit columns, and a data signal line is disposed between the two pixel unit columns in each group of pixel unit columns and shared by the two pixel unit columns; the TFT array substrate includes a plurality of touch driving electrodes disposed at gaps between adjacent groups of pixel unit columns; the color filter substrate includes a plurality of touch sensing electrodes extended along a row direction of the pixel units; each touch driving electrode and the data signal line in the TFT array substrate are arranged on a same layer; each touch driving electrode has a protruding structure at a position where the touch driving electrode is overlapped with the two gate signal lines between the adjacent rows of pixel units; and the protruding structure is extended along the row direction of the pixel units and disposed at gaps between adjacent pixel units.