Shift register and driving method thereof, gate driving circuit and display device
A shift register and circuit technology, applied in the field of gate drive circuits, display devices, shift registers and their driving methods, capable of solving problems such as insufficient charging of pull-up nodes
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Embodiment 1
[0056] suggestive, such as figure 2 As shown, in addition to being connected to the first control node O1 and the pull-up node PU, the functional subcircuit 100 is also connected to the second clock signal terminal CK2. The functional sub-circuit 100 is used to control the on-off between the first control node O1 and the pull-up node PU under the control of the voltage of the second clock signal terminal CK2.
[0057] On this basis, as figure 2 As shown, in the first embodiment, the first control terminal S connected to the first control sub-circuit 1021 is the fourth voltage terminal VDD. At this time, the first control sub-circuit 1021 is used to output the voltage of the fourth voltage terminal VDD to the pull-down node PD under the control of the voltage of the fourth voltage terminal VDD and the pull-up node PU. The first control sub-circuit 1021 is further configured to output the voltage of the third voltage terminal VGL to the pull-down node PD under the control of...
Embodiment 2
[0062] suggestive, such as image 3 As shown, the register also includes: a function control subcircuit 200 and a second storage subcircuit 202 .
[0063] The function control sub-circuit 200 is connected to the second clock signal terminal CK2, the second control node O2, and the pull-up node PU. The function control sub-circuit 200 is used to output the voltage of the second clock signal terminal CK2 to the second control node O2 under the control of the voltage of the second clock signal terminal CK2 . The function control sub-circuit 200 is also used to output the voltage of the second clock signal terminal CK2 to the second control node O2 under the control of the voltage of the pull-up node PU.
[0064] The second storage sub-circuit 202 is connected to the second control node O2 and the third voltage terminal VGL. The second storage sub-circuit 202 is used for storing the voltage of the second control node O2. The second storage sub-circuit 202 is also used for disch...
Embodiment 3
[0073] suggestive, such as Figure 4 As shown, the shift register further includes: a function control subcircuit 200 and a second storage subcircuit 202 .
[0074]The function control sub-circuit 200 is connected to the second clock signal terminal CK2, the second control node O2, and the pull-up node PU. The function control sub-circuit 200 is used to output the voltage of the second clock signal terminal CK2 to the second control node O2 under the control of the voltage of the second clock signal terminal CK2 . The function control sub-circuit 200 is also used to output the voltage of the second clock signal terminal CK2 to the second control node O2 under the control of the voltage of the pull-up node PU.
[0075] The second storage sub-circuit 202 is connected to the second control node O2 and the third voltage terminal VGL. The second storage sub-circuit 202 is used for storing the voltage of the second control node O2. The second storage sub-circuit 202 is also used ...
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