GATE DRIVING CIRCUIT, UNIT THEREOF, AND DISPLAY DEVICE

摘要

A gate driving circuit comprises at least one cascaded gate driving circuit unit. A low-level maintaining enabling end (P) of the gate driving circuit unit is connected to an adaptive voltage generation module (40). The adaptive voltage generation module (40) generates a self-compensation voltage according to a constant current source of the adaptive voltage generation module (40) and transmits the self-compensation voltage to the maintaining enabling end (P) so as to provide an effective level to the maintaining enabling end (P). Because a threshold voltage shift that occurs on a pull-down transistor in a low-level maintaining module (30) is embodied at the maintaining enabling end (P), the adaptive voltage generation module (40) generates a self-compensation voltage according to a threshold voltage under the action of a constant current source of the adaptive voltage generation module (40), and therefore the increase of the threshold voltage can be compensated, the overdrive voltage of the pull-down transistor is constant, and a good pull-down capability can be maintained, thereby pronging the service life of the gate driving circuit.