Touch drive unit and driving method thereof, touch drive circuit and touch device

摘要

A touch drive unit and a driving method thereof, a touch drive circuit and a touch device are disclosed. The touch drive unit includes a shift register sub-unit, a gate sub-unit. The shift register sub-unit includes a shift signal output terminal and is configured to output a shift signal to the gate sub-unit by the shift signal output terminal; the gate sub-unit includes a first input circuit, a first pull-up circuit, a first pull-down control circuit, and a first pull-down circuit; the first pull-up circuit is electrically connected to a touch drive signal terminal, a first pull-up node and a touch signal output terminal, and is configured to output a touch drive signal that is input from the touch drive signal terminal to the touch signal output terminal under a control of an electrical potential of the first pull-up node.