Patent ID: 11875747
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 15:
16. The pixel driving circuit according to claim 1, wherein
the current leakage suppression sub-circuit includes a third capacitor and a second transistor; the energy storage sub-circuit includes a fourth capacitor; the driving sub-circuit includes a twelfth transistor; the data writing sub-circuit includes a thirteenth transistor; the light-emitting control sub-circuit includes a fourteenth transistor; the reset sub-circuit includes a third transistor and a fourth transistor connected in series; the compensation sub-circuit includes a fifth transistor and a sixth transistor connected in series; the reference voltage sub-circuit includes a ninth transistor and a tenth transistor, or the reference voltage sub-circuit includes an eleventh transistor;
a first terminal of the third capacitor is coupled to a constant voltage signal terminal, and a second terminal of the third capacitor is coupled to a sixth node;
a control electrode of the second transistor is coupled to a third scan timing signal terminal, a first electrode of the second transistor is coupled to the second node, and a second electrode of the second transistor is coupled to the sixth node;
a first terminal of the fourth capacitor is coupled to the first node, and a second terminal of the fourth capacitor is coupled to the second node;
a control electrode of the twelfth transistor is coupled to the second node, a first electrode of the twelfth transistor is coupled to the first voltage signal terminal, and a second electrode of the twelfth transistor is coupled to the third node;
a control electrode of the thirteenth transistor is coupled to the second scan timing signal terminal, a first electrode of the thirteenth transistor is coupled to a data signal terminal, and a second electrode of the thirteenth transistor is coupled to the first node;
a control electrode of the fourteenth transistor is coupled to a light-emitting timing signal terminal, a first electrode of the fourteenth transistor is coupled to the third node, and a second electrode of the fourteenth transistor is configure to be coupled to a light-emitting device;
a control electrode of the third transistor is coupled to the first scan timing signal terminal, a first electrode of the third transistor is coupled to the initial signal terminal, a second electrode of the third transistor is coupled to a first electrode of the fourth transistor, a control electrode of the fourth transistor is coupled to the first scan timing signal terminal, and a second electrode of the fourth transistor is coupled to the second node; the first electrode of the fourth transistor is further coupled to the sixth node;
a control electrode of the fifth transistor is coupled to the second scan timing signal terminal, a first electrode of the fifth transistor is coupled to the third node, a second electrode of the fifth transistor is coupled to a first electrode of the sixth transistor, a control electrode of the sixth transistor is coupled to the second scan timing signal terminal, and a second electrode of the sixth transistor is coupled to the second node; the first electrode of the sixth transistor is further coupled to the sixth node;
in a case where the reference voltage sub-circuit includes the ninth transistor and the tenth transistor, a control electrode of the ninth transistor is coupled to the first scan timing signal terminal, a first electrode of the ninth transistor is coupled to a reference voltage signal terminal, and a second electrode of the ninth transistor is coupled to the first node; a control electrode of the tenth transistor is coupled to the light-emitting timing signal terminal, a first electrode of the tenth transistor is coupled to the reference voltage signal terminal, and a second electrode of the tenth transistor is coupled to the first node;
in a case where the reference voltage sub-circuit includes the eleventh transistor, a control electrode of the eleventh transistor is coupled to the second scan timing signal terminal, a first electrode of the eleventh transistor is coupled to the reference voltage signal terminal, and a second electrode of the eleventh transistor is coupled to the first node; an on/off type of the eleventh transistor is opposite to on/off types of transistors except the eleventh transistor in the pixel driving circuit.