US 12,347,367 B1
Pixel circuit
Wei-Li Lin, Hsinchu (TW)
Assigned to AUO Corporation, Hsinchu (TW)
Filed by AUO Corporation, Hsinchu (TW)
Filed on Sep. 13, 2024, as Appl. No. 18/884,121.
Claims priority of application No. 113107760 (TW), filed on Mar. 4, 2024.
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2310/061 (2013.01); G09G 2310/08 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising:
a light-emitting element, having an anode and a cathode that receives a system low voltage;
a driving circuit, configured to receive a gate voltage of a gate control node to provide a driving current based on the gate voltage;
a capacitor, coupled between the gate control node and a control node;
a first compensation circuit, configured to receive a system high voltage and a light-emitting signal, and coupled to the control node and the driving circuit to provide the system high voltage to the control node and the driving circuit based on the light-emitting signal;
a second compensation circuit, configured to receive a reference voltage and a compensation signal, and coupled to the driving circuit to provide the reference voltage to the driving circuit based on the compensation signal;
a reset read circuit, configured to receive an initial voltage, and coupled to the control node and the gate control node to receive a reset signal, and provide the initial voltage to the control node and the gate control node based on the reset signal;
a data writing circuit, configured to receive a data signal and a writing signal, and coupled to the gate control node to provide the data signal to the gate control node based on the writing signal; and
a light-emitting control circuit, coupled between the driving circuit and the anode of the light-emitting element, and configured to receive the light-emitting signal to transmit the driving current to the anode of the light-emitting element based on the light-emitting signal.