US 11,942,039 B1
Pixel driving circuit, driving method thereof and display device
Renjie Zhou, Shenzhen (CN); and Haoxuan Zheng, Shenzhen (CN)
Assigned to HKC CORPORATION LIMITED, Shenzhen (CN)
Filed by HKC CORPORATION LIMITED, Shenzhen (CN)
Filed on Jun. 6, 2023, as Appl. No. 18/330,273.
Claims priority of application No. 202211244269.5 (CN), filed on Oct. 12, 2022.
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2320/0252 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A pixel driving circuit comprising:
a driving transistor, a first terminal of the driving transistor being connected to a power source, a second terminal of the driving transistor being connected to a light emitting unit;
a storage capacitor, a first terminal of the storage capacitor being connected to a control terminal of the driving transistor, and a second terminal of the storage capacitor being connected to the power source;
a first response switch, provided with a first terminal connected to a data line, a control terminal connected to a scan line, and a second terminal connected to the first terminal of the storage capacitor, the control terminal of the first response switch being configured to respond to a scan signal provided by the scan line to provide a data signal provided by the data line to the first terminal of the storage capacitor;
a trigger with an input terminal connected to the scan line, and the trigger generating a first control signal in response to the scan signal of the scan line; and
a second response switch with a first terminal connected to the second terminal of the driving transistor, a second terminal connected to an initial voltage terminal, a control terminal connected to an output terminal of the trigger, wherein the control terminal of the second response switch provides a voltage of the initial voltage terminal to the second terminal of the driving transistor in response to the first control signal;
wherein the input terminal of the trigger comprises a first input terminal and a second input terminal, and the first input terminal and the second input terminal being connected to the scan line; and
wherein the pixel driving circuit further comprises an inverter, one terminal of the inverter being connected to the second input terminal, and another terminal of the inverter being connected to the scan line.