Double-Vinit Pixel Circuit for Flicker-Free Under-Display Panels

The pixel circuit is divided into two independent initial power source terminals (first initial power source terminal and second initial power source terminal) that can be independently controlled. This segmentation allows different voltage levels to be applied to different parts of the circuit at different times, enabling the reset phase to use a higher voltage from the second terminal to quickly discharge parasitic capacitance, while the light-emitting phase uses the first terminal for normal operation, thus eliminating flicker without affecting light transmittance

The patent applies a preliminary reset action before the light-emitting phase by using the second initial power source terminal to quickly discharge parasitic capacitance on conductive wires. This preliminary action ensures that when the light-emitting element is supposed to turn on, the parasitic capacitance has already been discharged, preventing delayed turn-on and flickering, while the light-transmittable display region maintains its optical properties

The patent applies preliminary anti-action by using the second initial power source terminal to preemptively discharge parasitic capacitance on conductive wires before the light-emitting phase begins. This counteracts the harmful effect of parasitic capacitance that would otherwise cause turn-on delays, ensuring all light-emitting elements turn on simultaneously regardless of wire length variations

The patent changes the voltage parameter by introducing a second initial power source terminal with a higher voltage level than the first initial power source terminal. This parameter change enables faster discharge of parasitic capacitance during the reset phase, reducing turn-on time delays caused by varying wire lengths and parasitic capacitance, while maintaining proper electrical connections