Gate line drive circuit, circuit for outputting transmission control signal, and display device

A gate line drive circuit, a circuit for outputting a transmission control signal and a display device, which resolve the problem of an existing gate line drive circuit failing to output a synchronization drive signal. The gate line drive circuit comprises a power supply input pin (10) used for inputting an effective voltage (VGH) for controlling a pixel region switch transistor to be powered off. The power supply input pin (10) inputs the effective voltage (VGH) in a display stage and inputs a synchronization drive signal in a touch stage.