Array substrate, touch panel and driving method thereof

摘要

An array substrate, a touch panel and a driving method thereof, and a display device are disclosed. The array substrate comprises a base substrate (1) which is formed with gate lines, data lines (8), first common electrodes (5) and second common electrodes (6) thereon, and the second common electrodes (6) comprise: transverse electrode groups (601) located in the same row and metal jumper wires (302) connecting two adjacent transverse electrode groups (601) in the same row; the first common electrodes (5) comprise longitudinal electrode groups (501), and switch circuits (701, 702) are provided between the first common electrodes (5) and the data lines (8). At the touch scanning phase, the conduction of the switch circuits (701, 702) renders the parallel connection between the first common electrodes (5) and the data lines (8), and then results in the reduction of the equivalent resistance of the first common electrodes (5), and the signal-to-noise ratio of the first common electrodes (5) is indirectly enhanced, thus the present invention achieves more accurate monitoring of voltage signals coupled by touch sensing electrodes and precise positioning of a touch point.

主权项

1. An array substrate, comprising a base substrate, wherein the base substrate is formed with gate lines, data lines, first common electrodes and second common electrodes thereon, and the gate lines and the data lines define a plurality of pixel units each of which comprises a plurality of common electrode bases, and all of the common electrode bases are divided into a plurality of transverse electrode groups arranged in a row direction and a plurality of longitudinal electrode groups arranged in a column direction, wherein the second common electrode comprises the transverse electrode groups in the same row and metal jumper wires connecting two adjacent transverse electrode groups in the same row, the first common electrode comprise the longitudinal electrode group, and a switch circuit is provided between the first common electrode and the data line, which is turned on at a touch scanning phase so that the first common electrode and the data line are connected with each other in parallel,
wherein the switch circuit comprises: a first switch sub-circuit and a second switch sub-circuit; and the first switch sub-circuit is connected with one end of the first common electrode and one end of the data line, and the second switch sub-circuit is connected with the other end of the first common electrode and the other end of the data line.