CAPACITIVE IN-CELL TOUCH SCREEN PANEL AND DISPLAY DEVICE

摘要

In a capacitive in-cell touch screen panel and a display device, touch driving signal lines are disposed between adjacent rows of pixel units in a TFT array substrate; at least one data signal lines in the TFT array substrate acts as a touch reading signal line as well; touch electrodes and touch switching units are disposed in regions defined at overlapping positions between the touch reading signal lines and the touch driving signal lines. The touch screen panel can be manufactured without adding a further process which saves production costs and improves production efficiency.

主权项

1. A capacitive in-cell touch screen panel comprising a thin film transistor (TFT) array substrate comprising data signal lines and a plurality of pixel units arranged in a matrix, wherein
the TFT array substrate comprises touch driving signal lines located between adjacent rows of pixel units; at least one data signal line in the TFT array substrate acts as a touch reading signal line as well; the TFT array substrate comprises touch electrodes and touch switching units located in regions defined at overlapping positions between the touch reading signal lines and the touch driving signal lines; the touch electrodes are electrically connected with adjacent touch driving signal lines and electrically connected with adjacent touch reading signal lines via the touch switching units; in a display time period, the touch reading signal lines apply gray scale signals, and the touch switching units are in an off-state; in a touch time period, the touch driving signal lines apply touch driving signals, and the touch switching units are in an on-state, and the touch driving signals are output to the touch reading signal lines after passing the touch electrodes.