DISPLAY PANEL, PIXEL DRIVING CIRCUIT, AND DRVING METHOD THEREOF
First Claim
1. A pixel driving circuit, comprising a driving transistor, a first switch, a second switch, a third switch, a fourth switch, a first capacitor, a second capacitor, a charge-voltage terminal, an initial-voltage-signal terminal, a data-voltage-signal terminal, a reset-voltage-signal terminal, and a driving-voltage-signal terminal;
- wherein the driving transistor comprises a gate terminal, a source terminal, and a drain terminal;
the first capacitor is connected between the source terminal and the gate terminal, the second capacitor is connected between the source terminal and the charge-voltage terminal;
the charge-voltage terminal is respectively connected with the reset-voltage-signal terminal and the data-voltage-signal terminal via the first switch and the second switch;
the drain terminal is connected with the driving-voltage-signal terminal via the third switch;
the gate terminal is connected with the initial-voltage-signal terminal via the fourth switch.
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Abstract
The present application provides a pixel driving circuit, which comprises a driving transistor, a first switch, a second switch, a third switch, a fourth switch, a first capacitor, a second capacitor, an initial-voltage-signal terminal, a data-voltage-signal terminal, a reset-voltage-signal terminal, and a driving-voltage-signal terminal. The driving transistor comprises a gate terminal, a source terminal, and a drain terminal. The first capacitor is connected between the source terminal and the gate terminal, the second capacitor is connected between the source terminal and a charge-voltage terminal. The charge-voltage terminal is respectively connected with the reset-voltage-signal terminal and the data-voltage-signal terminal via the first switch and the second switch. The drain terminal is connected with the driving-voltage-signal terminal via the third switch. The gate terminal is connected with the initial-voltage-signal terminal via the fourth switch. The present application further provides a pixel driving method and a display panel.
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Citations
14 Claims
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1. A pixel driving circuit, comprising a driving transistor, a first switch, a second switch, a third switch, a fourth switch, a first capacitor, a second capacitor, a charge-voltage terminal, an initial-voltage-signal terminal, a data-voltage-signal terminal, a reset-voltage-signal terminal, and a driving-voltage-signal terminal;
- wherein the driving transistor comprises a gate terminal, a source terminal, and a drain terminal;
the first capacitor is connected between the source terminal and the gate terminal, the second capacitor is connected between the source terminal and the charge-voltage terminal;
the charge-voltage terminal is respectively connected with the reset-voltage-signal terminal and the data-voltage-signal terminal via the first switch and the second switch;
the drain terminal is connected with the driving-voltage-signal terminal via the third switch;
the gate terminal is connected with the initial-voltage-signal terminal via the fourth switch. - View Dependent Claims (2, 3, 4, 5)
- wherein the driving transistor comprises a gate terminal, a source terminal, and a drain terminal;
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6. A display panel, comprising a pixel driving circuit, wherein the pixel driving circuit comprises a driving transistor, a first switch, a second switch, a third switch, a fourth switch, a first capacitor, a second capacitor, a charge-voltage terminal, an initial-voltage-signal terminal, a data-voltage-signal terminal, a reset-voltage-signal terminal, and a driving-voltage-signal terminal;
- the driving transistor comprises a gate terminal, a source terminal, and a drain terminal;
the first capacitor is connected between the source terminal and the gate terminal, the second capacitor is connected between the source terminal and the charge-voltage terminal;
the charge-voltage terminal is respectively connected with the reset-voltage-signal terminal and the data-voltage-signal terminal via the first switch and the second switch;
the drain terminal is connected with the driving-voltage-signal terminal via the third switch;
the gate terminal is connected with the initial-voltage-signal terminal via the fourth switch. - View Dependent Claims (7, 8, 9, 10)
- the driving transistor comprises a gate terminal, a source terminal, and a drain terminal;
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11. A pixel driving method, comprising:
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providing a pixel driving circuit, which comprises a driving transistor, a light-emitting diode, a first capacitor, a second capacitor, a charge-voltage terminal, a data-voltage-signal terminal, and a reset-voltage-signal terminal;
the driving transistor comprises a gate terminal, a source terminal, and a drain terminal;
the first capacitor is connected between the source terminal and the gate terminal, the second capacitor is connected between the source terminal and the charge-voltage terminal;
the charge-voltage terminal is connected with the reset-voltage-signal terminal and the data-voltage-signal terminal;
the source terminal is connected with the light-emitting diode;a reset-storage phase, loading a data voltage at the charge-voltage terminal, loading an initial voltage at the gate terminal, and loading a driving voltage at the drain terminal to charge the source terminal until a potential difference between the source terminal and the gate terminal is Vth, the Vth is a threshold voltage of the driving transistor, and the Vth is stored in the first capacitor; a charge-sharing phase, loading a reset voltage at the charge-voltage terminal to change a potential of the gate terminal and a potential of the source terminal, so as to stabilize a driving current of the driving transistor; a lighting phase, loading the reset voltage at the charge-voltage terminal and loading the driving voltage at the drain terminal to turn on the driving transistor and the light-emitting diode. - View Dependent Claims (12, 13, 14)
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Specification