Charge release circuit and method and display device

The invention provides a charge release circuit, belongs to the technical field of display, and can solve the problems that an oxide thin film transistor in a display panel cannot be completely opened and residual charges in the display panel cannot be completely released when the display panel is abnormally powered off due to the fact that an existing charge release circuit is insufficient. The charge release circuit is applied to the display panel and comprises a grid line connected with a plurality of pixel units and a grid driving circuit for providing a grid driving signal for the grid line, the gate drive circuit comprises a shift register of which the signal output end is connected with a gate line; the charge release circuit comprises a working level supply module which is configured to convert an initial working level of a first signal end of the working level supply module into a target working level, and a second signal end of the working level supply module is connected with a first non-working level signal end of the shift register; and the first control module is configured to respond to a trigger signal and short-circuit the first signal end and the second signal end so as to take the initial working level output by the working level supply module as the output of the signal output end.