Display driving device and display driving method

A display driving device, comprising:

• a driving transistor, configured to control a pulse amplitude of a driving current provided to a light emitter according to a pulse amplitude modulation data voltage;
• a transistor, connected in series with the driving transistor between a trace of a power supply signal and a trace of a pull-down signal;
• a boost circuit, connected to a gate terminal of the transistor;
• and
• a control circuit, connected through the boost circuit to the gate terminal of the transistor, configured to control the transistor according to a pulse width modulation data voltage and a sweep signal to control a pulse width of the driving current, and wherein the boost circuit is configured to boost a voltage level at the gate terminal of the transistor when the control circuit turns on the transistor.

A display driving method for driving a display driving device, wherein the display driving device comprising a light-emitting circuit, a control circuit and a boost circuit, wherein the light-emitting circuit is coupled to a first node, wherein the control circuit is coupled to a second node different from the first node, wherein the boost circuit coupled between the light-emitting circuit and the control circuit, wherein the display driving method comprises:

• performing light emission, by the light-emitting circuit, based on a first light-emitting signal, a second light-emitting signal, and a voltage level at the first node;
• charging the second node, by the control circuit, based on a sweep signal and the first light-emitting signal;
• and
• boosting a voltage level at the second node and charging the first node by the boost circuit,
• and wherein the voltage level at the first node is greater than the voltage level at the second node.