Light-emitting diode apparatus and control method thereof

A control method of a light-emitting diode apparatus, comprising:

• applying a pre-reset voltage to a control terminal of a driving transistor of the light-emitting diode apparatus in a pre-resetting stage to pre-reset the control terminal of the driving transistor, wherein the driving transistor has a first terminal and a second terminal, the pre-reset voltage increases a voltage difference between the control terminal and the first terminal of the driving transistor;
• resetting the control terminal of the driving transistor of the light-emitting diode apparatus by using a reset voltage source in a first resetting stage;
• compensating the control terminal of the driving transistor to a compensation voltage in a compensation stage;
• and
• providing, by the driving transistor, a driving current in a light emission stage to drive a light-emitting diode of the light-emitting diode apparatus to emit light,
• wherein the pre-reset voltage is different from a voltage provided from the reset voltage source,
• wherein the first terminal of the driving transistor is coupled to a high voltage source, and the light-emitting diode apparatus further comprises a first switch, a second switch, a third switch, a fourth switch, a fifth switch, a sixth switch, and a charge storage device, wherein a first terminal and a second terminal of the first switch are respectively coupled to a reference voltage source and a first terminal of the second switch, a second terminal of the second switch is configured to receive a data signal, the charge storage device is coupled between the first terminal of the second switch and the control terminal of the driving transistor, the third switch and the fourth switch are connected in series between the control terminal and the second terminal of the driving transistor, the fifth switch is coupled between a common contact of the third switch and the fourth switch and the reset voltage source, a first terminal and a second terminal of the sixth switch are respectively coupled to the second terminal of the driving transistor and an anode of the light-emitting diode, a cathode of the light-emitting diode is coupled to a low voltage source, on/off states of the first switch and the sixth switch are controlled by a light emission control signal, an on/off state of the fifth switch is controlled by a first control signal, on/off states of the second switch to the fourth switch are controlled by a second control signal, and the control method of the light-emitting diode apparatus comprises:
• in the pre-resetting stage, turning on the switches controlled by the second control signal, and turning off the switches controlled by the light emission control signal and the first control signal;
• in the first resetting stage, turning on the switches controlled by the first control signal and the second control signal, and turning off the switches controlled by the light emission control signal;
• in the compensation stage, turning on the switches controlled by the second control signal, and turning off the switches controlled by the light emission control signal and the first control signal;
• and
• in the light emission stage, turning on the switches controlled by the light emission control signal, and turning off the switches controlled by the first control signal and the second control signal.