| 摘要 |
A gate drive circuit, a display panel and a touch control display device. The gate drive circuit comprises at least two stages of gate drive sub-circuits (1), wherein each stage of gate drive sub-circuit contains a plurality of cascaded shift registers (SR(1)~SR(N)). Except the last stage of gate drive sub-circuit, in each of the rest stages of gate drive sub-circuits, a signal output terminal of the last stage of shift registers SR(N) is connected to an input signal control terminal of the first stage of shift registers SR(1) of the next adjacent stage of gate drive sub-circuit via a voltage holding unit (2).The voltage holding unit (2), after the last stage of shift registers SR(N) of the previous stage of gate drive sub-circuit connected to the voltage holding unit outputs a gate drive signal, and before the first stage of shift registers SR(1) of the next stage of gate drive sub-circuit connected to the voltage holding unit outputs a gate drive signal, holds the potential of the input signal control terminal of the first stage of shift registers SR(1) of the next stage of gate drive sub-circuit as the potential of the gate drive signal, so that the potential of the input signal control terminal will not be attenuated over time, thereby ensuring that each gate drive sub-circuit can produce a normal output. |
