A display device, comprises a scanning driving circuit which comprises a plurality of stages of scanning driving units in cascade connection, the plurality of stages of scanning driving units comprise:
- a first stage scanning driving unit;
- a plurality of intermediate stage scanning driving units;
- a last stage scanning driving unit;
- wherein, the first stage scanning driving unit, each intermediate stage scanning driving unit, and the last stage last scanning driving unit each comprising:
- a forward and reverse scanning circuit, configured to control the scanning driving circuit to forward scanning or reverse scanning, wherein the forward and reverse scanning circuit of the first stage scanning driving unit receives a forward scanning control voltage, a reverse scanning control voltage, and an output voltage of a turn-on voltage terminal, wherein the forward and reverse scanning circuit of each of the intermediate stage scanning driving units receives the forward scanning control voltage and the reverse scanning control voltage, wherein the forward and reverse scanning circuit of the last stage scanning driving unit receives the forward scanning control voltage, the reverse scanning control voltage, the output voltage of the turn-on voltage terminal, and the output voltage of a turn-off voltage terminal;
- an input circuit, connected to the forward and reverse scanning circuit and configured to receive a first clock signal and a second clock signal opposite to the first clock signal in phase and to charge a pull-up control signal point;
- a latch circuit, connected to the input circuit and configured to receive the first clock signal and the second clock signal and to latch a signal of the pull-up control signal point;
- an output circuit, connected to the latch circuit and configured to receive a third clock signal and generate a scanning driving signal in response to the third clock signal and the signal of the pull-up control signal point;
- and
- a reset circuit, connected to the latch circuit and configured to receive reset signals and reset the pull-up control signal points;
- wherein the forward and reverse scanning circuit of the first stage scanning driving unit comprises a first, a second, a third, a fourth, and a fifth controllable switch, a control terminal of the first controllable switch is connected to the forward scanning control voltage, a first terminal of the first controllable switch is connected to the turn-on voltage terminal, a second terminal of the first controllable switch is connected to a first terminal of the second controllable switch, a control terminal of the second controllable switch is connected to a control terminal of the third controllable switch and the reverse scanning control voltage, a second terminal of the second controllable switch is connected to a second terminal of the third controllable switch, the input circuit, and a second terminal of the fifth controllable switch, a first terminal of the third controllable switch is connected to a second terminal of the fourth controllable switch, a control terminal of the fourth controllable switch is connected to a first terminal of the fourth controllable switch and the forward scanning control voltage, a control terminal of the fifth controllable switch is connected to the forward scanning control voltage, a first terminal of the fifth controllable switch is connected to a pull-up control signal point of a next stage;
- the forward and reverse scanning circuit of each intermediate stage scanning driving unit comprises a first and a second transmission gate, an input terminal of the first transmission gates is connected to a pull-up control signal point of a previous stage, a first control terminal of the first transmission gate is connected to the forward scanning control voltage, a second control terminal of the first transmission gate is connected to a first control terminal of the second transmission gate and the reverse scanning control voltage, an output terminal of the first transmission gate is connected to an output terminal of the second transmission gate and the input circuit, an input terminal of the second transmission gate is connected to the pull-up control signal point of the next stage, a second control terminal of the second transmission gate is connected to the forward scanning control voltage;
- and
- the forward and reverse scanning circuit of the last stage scanning driving unit comprises a sixth, a seventh, an eighth, a ninth and a tenth controllable switch, a control terminal of the sixth controllable switch is connected to the forward scanning control voltage, a first terminal of the sixth controllable switch is connected to the turn-on voltage terminal, a second terminal of the sixth controllable switch is connected to a first terminal of the seventh controllable switch, a control terminal of the seventh controllable switch is connected to a control terminal of the eighth controllable switch and the reverse scanning control voltage, a second terminal of the seventh controllable switch is connected to a first terminal of the eighth controllable switch, the input circuit, and a second terminal of the tenth controllable switch, a second terminal of the eighth controllable switch is connected to a second terminal of the ninth controllable switch, a control terminal of the ninth controllable switch is connected to the forward scanning control voltage, a first terminal of the ninth controllable switch is connected to a turn-off voltage terminal, a control terminal of the tenth controllable switch is connected to the forward scanning control voltage, a second terminal of the tenth controllable switch is connected to the pull-up control signal point of the previous stage.